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 * @license Copyright 2020, GreenSock. All rights reserved.
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 * @author: Jack Doyle, jack@greensock.com
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e.apply(t||this,r.concat(o.call(arguments)))},i.guid=e.guid=e.guid||w.guid++,i},w.holdReady=function(e){e?w.readyWait++:w.ready(!0)},w.isArray=Array.isArray,w.parseJSON=JSON.parse,w.nodeName=N,w.isFunction=g,w.isWindow=y,w.camelCase=G,w.type=x,w.now=Date.now,w.isNumeric=function(e){var t=w.type(e);return("number"===t||"string"===t)&&!isNaN(e-parseFloat(e))},"function"==typeof define&&define.amd&&define("jquery",[],function(){return w});var Jt=e.jQuery,Kt=e.$;return w.noConflict=function(t){return e.$===w&&(e.$=Kt),t&&e.jQuery===w&&(e.jQuery=Jt),w},t||(e.jQuery=e.$=w),w});
;/*! jQuery UI - v1.12.1 - 2021-03-20
 * http://jqueryui.com
 * Includes: widget.js, position.js, data.js, disable-selection.js, focusable.js, form-reset-mixin.js, keycode.js, labels.js, scroll-parent.js, tabbable.js, unique-id.js, widgets/draggable.js, widgets/resizable.js, widgets/accordion.js, widgets/autocomplete.js, widgets/button.js, widgets/checkboxradio.js, widgets/controlgroup.js, widgets/datepicker.js, widgets/dialog.js, widgets/menu.js, widgets/mouse.js, widgets/progressbar.js, widgets/selectmenu.js, widgets/slider.js, widgets/spinner.js, widgets/tabs.js, widgets/tooltip.js
 * Copyright jQuery Foundation and other contributors; Licensed MIT */

(function( factory ) {
    if ( typeof define === "function" && define.amd ) {

        // AMD. Register as an anonymous module.
        define([ "jquery" ], factory );
    } else {

        // Browser globals
        factory( jQuery );
    }
}(function( $ ) {

    $.ui = $.ui || {};

    var version = $.ui.version = "1.12.1";


    /*!
     * jQuery UI Widget 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Widget
//>>group: Core
//>>description: Provides a factory for creating stateful widgets with a common API.
//>>docs: http://api.jqueryui.com/jQuery.widget/
//>>demos: http://jqueryui.com/widget/



    var widgetUuid = 0;
    var widgetSlice = Array.prototype.slice;

    $.cleanData = ( function( orig ) {
        return function( elems ) {
            var events, elem, i;
            for ( i = 0; ( elem = elems[ i ] ) != null; i++ ) {
                try {

                    // Only trigger remove when necessary to save time
                    events = $._data( elem, "events" );
                    if ( events && events.remove ) {
                        $( elem ).triggerHandler( "remove" );
                    }

                    // Http://bugs.jquery.com/ticket/8235
                } catch ( e ) {}
            }
            orig( elems );
        };
    } )( $.cleanData );

    $.widget = function( name, base, prototype ) {
        var existingConstructor, constructor, basePrototype;

        // ProxiedPrototype allows the provided prototype to remain unmodified
        // so that it can be used as a mixin for multiple widgets (#8876)
        var proxiedPrototype = {};

        var namespace = name.split( "." )[ 0 ];
        name = name.split( "." )[ 1 ];
        var fullName = namespace + "-" + name;

        if ( !prototype ) {
            prototype = base;
            base = $.Widget;
        }

        if ( $.isArray( prototype ) ) {
            prototype = $.extend.apply( null, [ {} ].concat( prototype ) );
        }

        // Create selector for plugin
        $.expr[ ":" ][ fullName.toLowerCase() ] = function( elem ) {
            return !!$.data( elem, fullName );
        };

        $[ namespace ] = $[ namespace ] || {};
        existingConstructor = $[ namespace ][ name ];
        constructor = $[ namespace ][ name ] = function( options, element ) {

            // Allow instantiation without "new" keyword
            if ( !this._createWidget ) {
                return new constructor( options, element );
            }

            // Allow instantiation without initializing for simple inheritance
            // must use "new" keyword (the code above always passes args)
            if ( arguments.length ) {
                this._createWidget( options, element );
            }
        };

        // Extend with the existing constructor to carry over any static properties
        $.extend( constructor, existingConstructor, {
            version: prototype.version,

            // Copy the object used to create the prototype in case we need to
            // redefine the widget later
            _proto: $.extend( {}, prototype ),

            // Track widgets that inherit from this widget in case this widget is
            // redefined after a widget inherits from it
            _childConstructors: []
        } );

        basePrototype = new base();

        // We need to make the options hash a property directly on the new instance
        // otherwise we'll modify the options hash on the prototype that we're
        // inheriting from
        basePrototype.options = $.widget.extend( {}, basePrototype.options );
        $.each( prototype, function( prop, value ) {
            if ( !$.isFunction( value ) ) {
                proxiedPrototype[ prop ] = value;
                return;
            }
            proxiedPrototype[ prop ] = ( function() {
                function _super() {
                    return base.prototype[ prop ].apply( this, arguments );
                }

                function _superApply( args ) {
                    return base.prototype[ prop ].apply( this, args );
                }

                return function() {
                    var __super = this._super;
                    var __superApply = this._superApply;
                    var returnValue;

                    this._super = _super;
                    this._superApply = _superApply;

                    returnValue = value.apply( this, arguments );

                    this._super = __super;
                    this._superApply = __superApply;

                    return returnValue;
                };
            } )();
        } );
        constructor.prototype = $.widget.extend( basePrototype, {

            // TODO: remove support for widgetEventPrefix
            // always use the name + a colon as the prefix, e.g., draggable:start
            // don't prefix for widgets that aren't DOM-based
            widgetEventPrefix: existingConstructor ? ( basePrototype.widgetEventPrefix || name ) : name
        }, proxiedPrototype, {
            constructor: constructor,
            namespace: namespace,
            widgetName: name,
            widgetFullName: fullName
        } );

        // If this widget is being redefined then we need to find all widgets that
        // are inheriting from it and redefine all of them so that they inherit from
        // the new version of this widget. We're essentially trying to replace one
        // level in the prototype chain.
        if ( existingConstructor ) {
            $.each( existingConstructor._childConstructors, function( i, child ) {
                var childPrototype = child.prototype;

                // Redefine the child widget using the same prototype that was
                // originally used, but inherit from the new version of the base
                $.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor,
                    child._proto );
            } );

            // Remove the list of existing child constructors from the old constructor
            // so the old child constructors can be garbage collected
            delete existingConstructor._childConstructors;
        } else {
            base._childConstructors.push( constructor );
        }

        $.widget.bridge( name, constructor );

        return constructor;
    };

    $.widget.extend = function( target ) {
        var input = widgetSlice.call( arguments, 1 );
        var inputIndex = 0;
        var inputLength = input.length;
        var key;
        var value;

        for ( ; inputIndex < inputLength; inputIndex++ ) {
            for ( key in input[ inputIndex ] ) {
                value = input[ inputIndex ][ key ];
                if ( input[ inputIndex ].hasOwnProperty( key ) && value !== undefined ) {

                    // Clone objects
                    if ( $.isPlainObject( value ) ) {
                        target[ key ] = $.isPlainObject( target[ key ] ) ?
                            $.widget.extend( {}, target[ key ], value ) :

                            // Don't extend strings, arrays, etc. with objects
                            $.widget.extend( {}, value );

                        // Copy everything else by reference
                    } else {
                        target[ key ] = value;
                    }
                }
            }
        }
        return target;
    };

    $.widget.bridge = function( name, object ) {
        var fullName = object.prototype.widgetFullName || name;
        $.fn[ name ] = function( options ) {
            var isMethodCall = typeof options === "string";
            var args = widgetSlice.call( arguments, 1 );
            var returnValue = this;

            if ( isMethodCall ) {

                // If this is an empty collection, we need to have the instance method
                // return undefined instead of the jQuery instance
                if ( !this.length && options === "instance" ) {
                    returnValue = undefined;
                } else {
                    this.each( function() {
                        var methodValue;
                        var instance = $.data( this, fullName );

                        if ( options === "instance" ) {
                            returnValue = instance;
                            return false;
                        }

                        if ( !instance ) {
                            return $.error( "cannot call methods on " + name +
                                " prior to initialization; " +
                                "attempted to call method '" + options + "'" );
                        }

                        if ( !$.isFunction( instance[ options ] ) || options.charAt( 0 ) === "_" ) {
                            return $.error( "no such method '" + options + "' for " + name +
                                " widget instance" );
                        }

                        methodValue = instance[ options ].apply( instance, args );

                        if ( methodValue !== instance && methodValue !== undefined ) {
                            returnValue = methodValue && methodValue.jquery ?
                                returnValue.pushStack( methodValue.get() ) :
                                methodValue;
                            return false;
                        }
                    } );
                }
            } else {

                // Allow multiple hashes to be passed on init
                if ( args.length ) {
                    options = $.widget.extend.apply( null, [ options ].concat( args ) );
                }

                this.each( function() {
                    var instance = $.data( this, fullName );
                    if ( instance ) {
                        instance.option( options || {} );
                        if ( instance._init ) {
                            instance._init();
                        }
                    } else {
                        $.data( this, fullName, new object( options, this ) );
                    }
                } );
            }

            return returnValue;
        };
    };

    $.Widget = function( /* options, element */ ) {};
    $.Widget._childConstructors = [];

    $.Widget.prototype = {
        widgetName: "widget",
        widgetEventPrefix: "",
        defaultElement: "<div>",

        options: {
            classes: {},
            disabled: false,

            // Callbacks
            create: null
        },

        _createWidget: function( options, element ) {
            element = $( element || this.defaultElement || this )[ 0 ];
            this.element = $( element );
            this.uuid = widgetUuid++;
            this.eventNamespace = "." + this.widgetName + this.uuid;

            this.bindings = $();
            this.hoverable = $();
            this.focusable = $();
            this.classesElementLookup = {};

            if ( element !== this ) {
                $.data( element, this.widgetFullName, this );
                this._on( true, this.element, {
                    remove: function( event ) {
                        if ( event.target === element ) {
                            this.destroy();
                        }
                    }
                } );
                this.document = $( element.style ?

                    // Element within the document
                    element.ownerDocument :

                    // Element is window or document
                    element.document || element );
                this.window = $( this.document[ 0 ].defaultView || this.document[ 0 ].parentWindow );
            }

            this.options = $.widget.extend( {},
                this.options,
                this._getCreateOptions(),
                options );

            this._create();

            if ( this.options.disabled ) {
                this._setOptionDisabled( this.options.disabled );
            }

            this._trigger( "create", null, this._getCreateEventData() );
            this._init();
        },

        _getCreateOptions: function() {
            return {};
        },

        _getCreateEventData: $.noop,

        _create: $.noop,

        _init: $.noop,

        destroy: function() {
            var that = this;

            this._destroy();
            $.each( this.classesElementLookup, function( key, value ) {
                that._removeClass( value, key );
            } );

            // We can probably remove the unbind calls in 2.0
            // all event bindings should go through this._on()
            this.element
                .off( this.eventNamespace )
                .removeData( this.widgetFullName );
            this.widget()
                .off( this.eventNamespace )
                .removeAttr( "aria-disabled" );

            // Clean up events and states
            this.bindings.off( this.eventNamespace );
        },

        _destroy: $.noop,

        widget: function() {
            return this.element;
        },

        option: function( key, value ) {
            var options = key;
            var parts;
            var curOption;
            var i;

            if ( arguments.length === 0 ) {

                // Don't return a reference to the internal hash
                return $.widget.extend( {}, this.options );
            }

            if ( typeof key === "string" ) {

                // Handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } }
                options = {};
                parts = key.split( "." );
                key = parts.shift();
                if ( parts.length ) {
                    curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] );
                    for ( i = 0; i < parts.length - 1; i++ ) {
                        curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {};
                        curOption = curOption[ parts[ i ] ];
                    }
                    key = parts.pop();
                    if ( arguments.length === 1 ) {
                        return curOption[ key ] === undefined ? null : curOption[ key ];
                    }
                    curOption[ key ] = value;
                } else {
                    if ( arguments.length === 1 ) {
                        return this.options[ key ] === undefined ? null : this.options[ key ];
                    }
                    options[ key ] = value;
                }
            }

            this._setOptions( options );

            return this;
        },

        _setOptions: function( options ) {
            var key;

            for ( key in options ) {
                this._setOption( key, options[ key ] );
            }

            return this;
        },

        _setOption: function( key, value ) {
            if ( key === "classes" ) {
                this._setOptionClasses( value );
            }

            this.options[ key ] = value;

            if ( key === "disabled" ) {
                this._setOptionDisabled( value );
            }

            return this;
        },

        _setOptionClasses: function( value ) {
            var classKey, elements, currentElements;

            for ( classKey in value ) {
                currentElements = this.classesElementLookup[ classKey ];
                if ( value[ classKey ] === this.options.classes[ classKey ] ||
                    !currentElements ||
                    !currentElements.length ) {
                    continue;
                }

                // We are doing this to create a new jQuery object because the _removeClass() call
                // on the next line is going to destroy the reference to the current elements being
                // tracked. We need to save a copy of this collection so that we can add the new classes
                // below.
                elements = $( currentElements.get() );
                this._removeClass( currentElements, classKey );

                // We don't use _addClass() here, because that uses this.options.classes
                // for generating the string of classes. We want to use the value passed in from
                // _setOption(), this is the new value of the classes option which was passed to
                // _setOption(). We pass this value directly to _classes().
                elements.addClass( this._classes( {
                    element: elements,
                    keys: classKey,
                    classes: value,
                    add: true
                } ) );
            }
        },

        _setOptionDisabled: function( value ) {
            this._toggleClass( this.widget(), this.widgetFullName + "-disabled", null, !!value );

            // If the widget is becoming disabled, then nothing is interactive
            if ( value ) {
                this._removeClass( this.hoverable, null, "ui-state-hover" );
                this._removeClass( this.focusable, null, "ui-state-focus" );
            }
        },

        enable: function() {
            return this._setOptions( { disabled: false } );
        },

        disable: function() {
            return this._setOptions( { disabled: true } );
        },

        _classes: function( options ) {
            var full = [];
            var that = this;

            options = $.extend( {
                element: this.element,
                classes: this.options.classes || {}
            }, options );

            function processClassString( classes, checkOption ) {
                var current, i;
                for ( i = 0; i < classes.length; i++ ) {
                    current = that.classesElementLookup[ classes[ i ] ] || $();
                    if ( options.add ) {
                        current = $( $.unique( current.get().concat( options.element.get() ) ) );
                    } else {
                        current = $( current.not( options.element ).get() );
                    }
                    that.classesElementLookup[ classes[ i ] ] = current;
                    full.push( classes[ i ] );
                    if ( checkOption && options.classes[ classes[ i ] ] ) {
                        full.push( options.classes[ classes[ i ] ] );
                    }
                }
            }

            this._on( options.element, {
                "remove": "_untrackClassesElement"
            } );

            if ( options.keys ) {
                processClassString( options.keys.match( /\S+/g ) || [], true );
            }
            if ( options.extra ) {
                processClassString( options.extra.match( /\S+/g ) || [] );
            }

            return full.join( " " );
        },

        _untrackClassesElement: function( event ) {
            var that = this;
            $.each( that.classesElementLookup, function( key, value ) {
                if ( $.inArray( event.target, value ) !== -1 ) {
                    that.classesElementLookup[ key ] = $( value.not( event.target ).get() );
                }
            } );
        },

        _removeClass: function( element, keys, extra ) {
            return this._toggleClass( element, keys, extra, false );
        },

        _addClass: function( element, keys, extra ) {
            return this._toggleClass( element, keys, extra, true );
        },

        _toggleClass: function( element, keys, extra, add ) {
            add = ( typeof add === "boolean" ) ? add : extra;
            var shift = ( typeof element === "string" || element === null ),
                options = {
                    extra: shift ? keys : extra,
                    keys: shift ? element : keys,
                    element: shift ? this.element : element,
                    add: add
                };
            options.element.toggleClass( this._classes( options ), add );
            return this;
        },

        _on: function( suppressDisabledCheck, element, handlers ) {
            var delegateElement;
            var instance = this;

            // No suppressDisabledCheck flag, shuffle arguments
            if ( typeof suppressDisabledCheck !== "boolean" ) {
                handlers = element;
                element = suppressDisabledCheck;
                suppressDisabledCheck = false;
            }

            // No element argument, shuffle and use this.element
            if ( !handlers ) {
                handlers = element;
                element = this.element;
                delegateElement = this.widget();
            } else {
                element = delegateElement = $( element );
                this.bindings = this.bindings.add( element );
            }

            $.each( handlers, function( event, handler ) {
                function handlerProxy() {

                    // Allow widgets to customize the disabled handling
                    // - disabled as an array instead of boolean
                    // - disabled class as method for disabling individual parts
                    if ( !suppressDisabledCheck &&
                        ( instance.options.disabled === true ||
                        $( this ).hasClass( "ui-state-disabled" ) ) ) {
                        return;
                    }
                    return ( typeof handler === "string" ? instance[ handler ] : handler )
                        .apply( instance, arguments );
                }

                // Copy the guid so direct unbinding works
                if ( typeof handler !== "string" ) {
                    handlerProxy.guid = handler.guid =
                        handler.guid || handlerProxy.guid || $.guid++;
                }

                var match = event.match( /^([\w:-]*)\s*(.*)$/ );
                var eventName = match[ 1 ] + instance.eventNamespace;
                var selector = match[ 2 ];

                if ( selector ) {
                    delegateElement.on( eventName, selector, handlerProxy );
                } else {
                    element.on( eventName, handlerProxy );
                }
            } );
        },

        _off: function( element, eventName ) {
            eventName = ( eventName || "" ).split( " " ).join( this.eventNamespace + " " ) +
                this.eventNamespace;
            element.off( eventName ).off( eventName );

            // Clear the stack to avoid memory leaks (#10056)
            this.bindings = $( this.bindings.not( element ).get() );
            this.focusable = $( this.focusable.not( element ).get() );
            this.hoverable = $( this.hoverable.not( element ).get() );
        },

        _delay: function( handler, delay ) {
            function handlerProxy() {
                return ( typeof handler === "string" ? instance[ handler ] : handler )
                    .apply( instance, arguments );
            }
            var instance = this;
            return setTimeout( handlerProxy, delay || 0 );
        },

        _hoverable: function( element ) {
            this.hoverable = this.hoverable.add( element );
            this._on( element, {
                mouseenter: function( event ) {
                    this._addClass( $( event.currentTarget ), null, "ui-state-hover" );
                },
                mouseleave: function( event ) {
                    this._removeClass( $( event.currentTarget ), null, "ui-state-hover" );
                }
            } );
        },

        _focusable: function( element ) {
            this.focusable = this.focusable.add( element );
            this._on( element, {
                focusin: function( event ) {
                    this._addClass( $( event.currentTarget ), null, "ui-state-focus" );
                },
                focusout: function( event ) {
                    this._removeClass( $( event.currentTarget ), null, "ui-state-focus" );
                }
            } );
        },

        _trigger: function( type, event, data ) {
            var prop, orig;
            var callback = this.options[ type ];

            data = data || {};
            event = $.Event( event );
            event.type = ( type === this.widgetEventPrefix ?
                type :
                this.widgetEventPrefix + type ).toLowerCase();

            // The original event may come from any element
            // so we need to reset the target on the new event
            event.target = this.element[ 0 ];

            // Copy original event properties over to the new event
            orig = event.originalEvent;
            if ( orig ) {
                for ( prop in orig ) {
                    if ( !( prop in event ) ) {
                        event[ prop ] = orig[ prop ];
                    }
                }
            }

            this.element.trigger( event, data );
            return !( $.isFunction( callback ) &&
            callback.apply( this.element[ 0 ], [ event ].concat( data ) ) === false ||
            event.isDefaultPrevented() );
        }
    };

    $.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) {
        $.Widget.prototype[ "_" + method ] = function( element, options, callback ) {
            if ( typeof options === "string" ) {
                options = { effect: options };
            }

            var hasOptions;
            var effectName = !options ?
                method :
                options === true || typeof options === "number" ?
                    defaultEffect :
                    options.effect || defaultEffect;

            options = options || {};
            if ( typeof options === "number" ) {
                options = { duration: options };
            }

            hasOptions = !$.isEmptyObject( options );
            options.complete = callback;

            if ( options.delay ) {
                element.delay( options.delay );
            }

            if ( hasOptions && $.effects && $.effects.effect[ effectName ] ) {
                element[ method ]( options );
            } else if ( effectName !== method && element[ effectName ] ) {
                element[ effectName ]( options.duration, options.easing, callback );
            } else {
                element.queue( function( next ) {
                    $( this )[ method ]();
                    if ( callback ) {
                        callback.call( element[ 0 ] );
                    }
                    next();
                } );
            }
        };
    } );

    var widget = $.widget;


    /*!
     * jQuery UI Position 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     *
     * http://api.jqueryui.com/position/
     */

//>>label: Position
//>>group: Core
//>>description: Positions elements relative to other elements.
//>>docs: http://api.jqueryui.com/position/
//>>demos: http://jqueryui.com/position/


    ( function() {
        var cachedScrollbarWidth,
            max = Math.max,
            abs = Math.abs,
            rhorizontal = /left|center|right/,
            rvertical = /top|center|bottom/,
            roffset = /[\+\-]\d+(\.[\d]+)?%?/,
            rposition = /^\w+/,
            rpercent = /%$/,
            _position = $.fn.position;

        function getOffsets( offsets, width, height ) {
            return [
                parseFloat( offsets[ 0 ] ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ),
                parseFloat( offsets[ 1 ] ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 )
            ];
        }

        function parseCss( element, property ) {
            return parseInt( $.css( element, property ), 10 ) || 0;
        }

        function getDimensions( elem ) {
            var raw = elem[ 0 ];
            if ( raw.nodeType === 9 ) {
                return {
                    width: elem.width(),
                    height: elem.height(),
                    offset: { top: 0, left: 0 }
                };
            }
            if ( $.isWindow( raw ) ) {
                return {
                    width: elem.width(),
                    height: elem.height(),
                    offset: { top: elem.scrollTop(), left: elem.scrollLeft() }
                };
            }
            if ( raw.preventDefault ) {
                return {
                    width: 0,
                    height: 0,
                    offset: { top: raw.pageY, left: raw.pageX }
                };
            }
            return {
                width: elem.outerWidth(),
                height: elem.outerHeight(),
                offset: elem.offset()
            };
        }

        $.position = {
            scrollbarWidth: function() {
                if ( cachedScrollbarWidth !== undefined ) {
                    return cachedScrollbarWidth;
                }
                var w1, w2,
                    div = $( "<div " +
                        "style='display:block;position:absolute;width:50px;height:50px;overflow:hidden;'>" +
                        "<div style='height:100px;width:auto;'></div></div>" ),
                    innerDiv = div.children()[ 0 ];

                $( "body" ).append( div );
                w1 = innerDiv.offsetWidth;
                div.css( "overflow", "scroll" );

                w2 = innerDiv.offsetWidth;

                if ( w1 === w2 ) {
                    w2 = div[ 0 ].clientWidth;
                }

                div.remove();

                return ( cachedScrollbarWidth = w1 - w2 );
            },
            getScrollInfo: function( within ) {
                var overflowX = within.isWindow || within.isDocument ? "" :
                        within.element.css( "overflow-x" ),
                    overflowY = within.isWindow || within.isDocument ? "" :
                        within.element.css( "overflow-y" ),
                    hasOverflowX = overflowX === "scroll" ||
                        ( overflowX === "auto" && within.width < within.element[ 0 ].scrollWidth ),
                    hasOverflowY = overflowY === "scroll" ||
                        ( overflowY === "auto" && within.height < within.element[ 0 ].scrollHeight );
                return {
                    width: hasOverflowY ? $.position.scrollbarWidth() : 0,
                    height: hasOverflowX ? $.position.scrollbarWidth() : 0
                };
            },
            getWithinInfo: function( element ) {
                var withinElement = $( element || window ),
                    isWindow = $.isWindow( withinElement[ 0 ] ),
                    isDocument = !!withinElement[ 0 ] && withinElement[ 0 ].nodeType === 9,
                    hasOffset = !isWindow && !isDocument;
                return {
                    element: withinElement,
                    isWindow: isWindow,
                    isDocument: isDocument,
                    offset: hasOffset ? $( element ).offset() : { left: 0, top: 0 },
                    scrollLeft: withinElement.scrollLeft(),
                    scrollTop: withinElement.scrollTop(),
                    width: withinElement.outerWidth(),
                    height: withinElement.outerHeight()
                };
            }
        };

        $.fn.position = function( options ) {
            if ( !options || !options.of ) {
                return _position.apply( this, arguments );
            }

            // Make a copy, we don't want to modify arguments
            options = $.extend( {}, options );

            var atOffset, targetWidth, targetHeight, targetOffset, basePosition, dimensions,
                target = $( options.of ),
                within = $.position.getWithinInfo( options.within ),
                scrollInfo = $.position.getScrollInfo( within ),
                collision = ( options.collision || "flip" ).split( " " ),
                offsets = {};

            dimensions = getDimensions( target );
            if ( target[ 0 ].preventDefault ) {

                // Force left top to allow flipping
                options.at = "left top";
            }
            targetWidth = dimensions.width;
            targetHeight = dimensions.height;
            targetOffset = dimensions.offset;

            // Clone to reuse original targetOffset later
            basePosition = $.extend( {}, targetOffset );

            // Force my and at to have valid horizontal and vertical positions
            // if a value is missing or invalid, it will be converted to center
            $.each( [ "my", "at" ], function() {
                var pos = ( options[ this ] || "" ).split( " " ),
                    horizontalOffset,
                    verticalOffset;

                if ( pos.length === 1 ) {
                    pos = rhorizontal.test( pos[ 0 ] ) ?
                        pos.concat( [ "center" ] ) :
                        rvertical.test( pos[ 0 ] ) ?
                            [ "center" ].concat( pos ) :
                            [ "center", "center" ];
                }
                pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center";
                pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center";

                // Calculate offsets
                horizontalOffset = roffset.exec( pos[ 0 ] );
                verticalOffset = roffset.exec( pos[ 1 ] );
                offsets[ this ] = [
                    horizontalOffset ? horizontalOffset[ 0 ] : 0,
                    verticalOffset ? verticalOffset[ 0 ] : 0
                ];

                // Reduce to just the positions without the offsets
                options[ this ] = [
                    rposition.exec( pos[ 0 ] )[ 0 ],
                    rposition.exec( pos[ 1 ] )[ 0 ]
                ];
            } );

            // Normalize collision option
            if ( collision.length === 1 ) {
                collision[ 1 ] = collision[ 0 ];
            }

            if ( options.at[ 0 ] === "right" ) {
                basePosition.left += targetWidth;
            } else if ( options.at[ 0 ] === "center" ) {
                basePosition.left += targetWidth / 2;
            }

            if ( options.at[ 1 ] === "bottom" ) {
                basePosition.top += targetHeight;
            } else if ( options.at[ 1 ] === "center" ) {
                basePosition.top += targetHeight / 2;
            }

            atOffset = getOffsets( offsets.at, targetWidth, targetHeight );
            basePosition.left += atOffset[ 0 ];
            basePosition.top += atOffset[ 1 ];

            return this.each( function() {
                var collisionPosition, using,
                    elem = $( this ),
                    elemWidth = elem.outerWidth(),
                    elemHeight = elem.outerHeight(),
                    marginLeft = parseCss( this, "marginLeft" ),
                    marginTop = parseCss( this, "marginTop" ),
                    collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) +
                        scrollInfo.width,
                    collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) +
                        scrollInfo.height,
                    position = $.extend( {}, basePosition ),
                    myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() );

                if ( options.my[ 0 ] === "right" ) {
                    position.left -= elemWidth;
                } else if ( options.my[ 0 ] === "center" ) {
                    position.left -= elemWidth / 2;
                }

                if ( options.my[ 1 ] === "bottom" ) {
                    position.top -= elemHeight;
                } else if ( options.my[ 1 ] === "center" ) {
                    position.top -= elemHeight / 2;
                }

                position.left += myOffset[ 0 ];
                position.top += myOffset[ 1 ];

                collisionPosition = {
                    marginLeft: marginLeft,
                    marginTop: marginTop
                };

                $.each( [ "left", "top" ], function( i, dir ) {
                    if ( $.ui.position[ collision[ i ] ] ) {
                        $.ui.position[ collision[ i ] ][ dir ]( position, {
                            targetWidth: targetWidth,
                            targetHeight: targetHeight,
                            elemWidth: elemWidth,
                            elemHeight: elemHeight,
                            collisionPosition: collisionPosition,
                            collisionWidth: collisionWidth,
                            collisionHeight: collisionHeight,
                            offset: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ],
                            my: options.my,
                            at: options.at,
                            within: within,
                            elem: elem
                        } );
                    }
                } );

                if ( options.using ) {

                    // Adds feedback as second argument to using callback, if present
                    using = function( props ) {
                        var left = targetOffset.left - position.left,
                            right = left + targetWidth - elemWidth,
                            top = targetOffset.top - position.top,
                            bottom = top + targetHeight - elemHeight,
                            feedback = {
                                target: {
                                    element: target,
                                    left: targetOffset.left,
                                    top: targetOffset.top,
                                    width: targetWidth,
                                    height: targetHeight
                                },
                                element: {
                                    element: elem,
                                    left: position.left,
                                    top: position.top,
                                    width: elemWidth,
                                    height: elemHeight
                                },
                                horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",
                                vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"
                            };
                        if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) {
                            feedback.horizontal = "center";
                        }
                        if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) {
                            feedback.vertical = "middle";
                        }
                        if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) {
                            feedback.important = "horizontal";
                        } else {
                            feedback.important = "vertical";
                        }
                        options.using.call( this, props, feedback );
                    };
                }

                elem.offset( $.extend( position, { using: using } ) );
            } );
        };

        $.ui.position = {
            fit: {
                left: function( position, data ) {
                    var within = data.within,
                        withinOffset = within.isWindow ? within.scrollLeft : within.offset.left,
                        outerWidth = within.width,
                        collisionPosLeft = position.left - data.collisionPosition.marginLeft,
                        overLeft = withinOffset - collisionPosLeft,
                        overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset,
                        newOverRight;

                    // Element is wider than within
                    if ( data.collisionWidth > outerWidth ) {

                        // Element is initially over the left side of within
                        if ( overLeft > 0 && overRight <= 0 ) {
                            newOverRight = position.left + overLeft + data.collisionWidth - outerWidth -
                                withinOffset;
                            position.left += overLeft - newOverRight;

                            // Element is initially over right side of within
                        } else if ( overRight > 0 && overLeft <= 0 ) {
                            position.left = withinOffset;

                            // Element is initially over both left and right sides of within
                        } else {
                            if ( overLeft > overRight ) {
                                position.left = withinOffset + outerWidth - data.collisionWidth;
                            } else {
                                position.left = withinOffset;
                            }
                        }

                        // Too far left -> align with left edge
                    } else if ( overLeft > 0 ) {
                        position.left += overLeft;

                        // Too far right -> align with right edge
                    } else if ( overRight > 0 ) {
                        position.left -= overRight;

                        // Adjust based on position and margin
                    } else {
                        position.left = max( position.left - collisionPosLeft, position.left );
                    }
                },
                top: function( position, data ) {
                    var within = data.within,
                        withinOffset = within.isWindow ? within.scrollTop : within.offset.top,
                        outerHeight = data.within.height,
                        collisionPosTop = position.top - data.collisionPosition.marginTop,
                        overTop = withinOffset - collisionPosTop,
                        overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset,
                        newOverBottom;

                    // Element is taller than within
                    if ( data.collisionHeight > outerHeight ) {

                        // Element is initially over the top of within
                        if ( overTop > 0 && overBottom <= 0 ) {
                            newOverBottom = position.top + overTop + data.collisionHeight - outerHeight -
                                withinOffset;
                            position.top += overTop - newOverBottom;

                            // Element is initially over bottom of within
                        } else if ( overBottom > 0 && overTop <= 0 ) {
                            position.top = withinOffset;

                            // Element is initially over both top and bottom of within
                        } else {
                            if ( overTop > overBottom ) {
                                position.top = withinOffset + outerHeight - data.collisionHeight;
                            } else {
                                position.top = withinOffset;
                            }
                        }

                        // Too far up -> align with top
                    } else if ( overTop > 0 ) {
                        position.top += overTop;

                        // Too far down -> align with bottom edge
                    } else if ( overBottom > 0 ) {
                        position.top -= overBottom;

                        // Adjust based on position and margin
                    } else {
                        position.top = max( position.top - collisionPosTop, position.top );
                    }
                }
            },
            flip: {
                left: function( position, data ) {
                    var within = data.within,
                        withinOffset = within.offset.left + within.scrollLeft,
                        outerWidth = within.width,
                        offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left,
                        collisionPosLeft = position.left - data.collisionPosition.marginLeft,
                        overLeft = collisionPosLeft - offsetLeft,
                        overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft,
                        myOffset = data.my[ 0 ] === "left" ?
                            -data.elemWidth :
                            data.my[ 0 ] === "right" ?
                                data.elemWidth :
                                0,
                        atOffset = data.at[ 0 ] === "left" ?
                            data.targetWidth :
                            data.at[ 0 ] === "right" ?
                                -data.targetWidth :
                                0,
                        offset = -2 * data.offset[ 0 ],
                        newOverRight,
                        newOverLeft;

                    if ( overLeft < 0 ) {
                        newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth -
                            outerWidth - withinOffset;
                        if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) {
                            position.left += myOffset + atOffset + offset;
                        }
                    } else if ( overRight > 0 ) {
                        newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset +
                            atOffset + offset - offsetLeft;
                        if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) {
                            position.left += myOffset + atOffset + offset;
                        }
                    }
                },
                top: function( position, data ) {
                    var within = data.within,
                        withinOffset = within.offset.top + within.scrollTop,
                        outerHeight = within.height,
                        offsetTop = within.isWindow ? within.scrollTop : within.offset.top,
                        collisionPosTop = position.top - data.collisionPosition.marginTop,
                        overTop = collisionPosTop - offsetTop,
                        overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop,
                        top = data.my[ 1 ] === "top",
                        myOffset = top ?
                            -data.elemHeight :
                            data.my[ 1 ] === "bottom" ?
                                data.elemHeight :
                                0,
                        atOffset = data.at[ 1 ] === "top" ?
                            data.targetHeight :
                            data.at[ 1 ] === "bottom" ?
                                -data.targetHeight :
                                0,
                        offset = -2 * data.offset[ 1 ],
                        newOverTop,
                        newOverBottom;
                    if ( overTop < 0 ) {
                        newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight -
                            outerHeight - withinOffset;
                        if ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) {
                            position.top += myOffset + atOffset + offset;
                        }
                    } else if ( overBottom > 0 ) {
                        newOverTop = position.top - data.collisionPosition.marginTop + myOffset + atOffset +
                            offset - offsetTop;
                        if ( newOverTop > 0 || abs( newOverTop ) < overBottom ) {
                            position.top += myOffset + atOffset + offset;
                        }
                    }
                }
            },
            flipfit: {
                left: function() {
                    $.ui.position.flip.left.apply( this, arguments );
                    $.ui.position.fit.left.apply( this, arguments );
                },
                top: function() {
                    $.ui.position.flip.top.apply( this, arguments );
                    $.ui.position.fit.top.apply( this, arguments );
                }
            }
        };

    } )();

    var position = $.ui.position;


    /*!
     * jQuery UI :data 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: :data Selector
//>>group: Core
//>>description: Selects elements which have data stored under the specified key.
//>>docs: http://api.jqueryui.com/data-selector/


    var data = $.extend( $.expr[ ":" ], {
        data: $.expr.createPseudo ?
            $.expr.createPseudo( function( dataName ) {
                return function( elem ) {
                    return !!$.data( elem, dataName );
                };
            } ) :

            // Support: jQuery <1.8
            function( elem, i, match ) {
                return !!$.data( elem, match[ 3 ] );
            }
    } );

    /*!
     * jQuery UI Disable Selection 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: disableSelection
//>>group: Core
//>>description: Disable selection of text content within the set of matched elements.
//>>docs: http://api.jqueryui.com/disableSelection/

// This file is deprecated


    var disableSelection = $.fn.extend( {
        disableSelection: ( function() {
            var eventType = "onselectstart" in document.createElement( "div" ) ?
                "selectstart" :
                "mousedown";

            return function() {
                return this.on( eventType + ".ui-disableSelection", function( event ) {
                    event.preventDefault();
                } );
            };
        } )(),

        enableSelection: function() {
            return this.off( ".ui-disableSelection" );
        }
    } );


    /*!
     * jQuery UI Focusable 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: :focusable Selector
//>>group: Core
//>>description: Selects elements which can be focused.
//>>docs: http://api.jqueryui.com/focusable-selector/



// Selectors
    $.ui.focusable = function( element, hasTabindex ) {
        var map, mapName, img, focusableIfVisible, fieldset,
            nodeName = element.nodeName.toLowerCase();

        if ( "area" === nodeName ) {
            map = element.parentNode;
            mapName = map.name;
            if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
                return false;
            }
            img = $( "img[usemap='#" + mapName + "']" );
            return img.length > 0 && img.is( ":visible" );
        }

        if ( /^(input|select|textarea|button|object)$/.test( nodeName ) ) {
            focusableIfVisible = !element.disabled;

            if ( focusableIfVisible ) {

                // Form controls within a disabled fieldset are disabled.
                // However, controls within the fieldset's legend do not get disabled.
                // Since controls generally aren't placed inside legends, we skip
                // this portion of the check.
                fieldset = $( element ).closest( "fieldset" )[ 0 ];
                if ( fieldset ) {
                    focusableIfVisible = !fieldset.disabled;
                }
            }
        } else if ( "a" === nodeName ) {
            focusableIfVisible = element.href || hasTabindex;
        } else {
            focusableIfVisible = hasTabindex;
        }

        return focusableIfVisible && $( element ).is( ":visible" ) && visible( $( element ) );
    };

// Support: IE 8 only
// IE 8 doesn't resolve inherit to visible/hidden for computed values
    function visible( element ) {
        var visibility = element.css( "visibility" );
        while ( visibility === "inherit" ) {
            element = element.parent();
            visibility = element.css( "visibility" );
        }
        return visibility !== "hidden";
    }

    $.extend( $.expr[ ":" ], {
        focusable: function( element ) {
            return $.ui.focusable( element, $.attr( element, "tabindex" ) != null );
        }
    } );

    var focusable = $.ui.focusable;




// Support: IE8 Only
// IE8 does not support the form attribute and when it is supplied. It overwrites the form prop
// with a string, so we need to find the proper form.
    var form = $.fn.form = function() {
        return typeof this[ 0 ].form === "string" ? this.closest( "form" ) : $( this[ 0 ].form );
    };


    /*!
     * jQuery UI Form Reset Mixin 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Form Reset Mixin
//>>group: Core
//>>description: Refresh input widgets when their form is reset
//>>docs: http://api.jqueryui.com/form-reset-mixin/



    var formResetMixin = $.ui.formResetMixin = {
        _formResetHandler: function() {
            var form = $( this );

            // Wait for the form reset to actually happen before refreshing
            setTimeout( function() {
                var instances = form.data( "ui-form-reset-instances" );
                $.each( instances, function() {
                    this.refresh();
                } );
            } );
        },

        _bindFormResetHandler: function() {
            this.form = this.element.form();
            if ( !this.form.length ) {
                return;
            }

            var instances = this.form.data( "ui-form-reset-instances" ) || [];
            if ( !instances.length ) {

                // We don't use _on() here because we use a single event handler per form
                this.form.on( "reset.ui-form-reset", this._formResetHandler );
            }
            instances.push( this );
            this.form.data( "ui-form-reset-instances", instances );
        },

        _unbindFormResetHandler: function() {
            if ( !this.form.length ) {
                return;
            }

            var instances = this.form.data( "ui-form-reset-instances" );
            instances.splice( $.inArray( this, instances ), 1 );
            if ( instances.length ) {
                this.form.data( "ui-form-reset-instances", instances );
            } else {
                this.form
                    .removeData( "ui-form-reset-instances" )
                    .off( "reset.ui-form-reset" );
            }
        }
    };


    /*!
     * jQuery UI Keycode 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Keycode
//>>group: Core
//>>description: Provide keycodes as keynames
//>>docs: http://api.jqueryui.com/jQuery.ui.keyCode/


    var keycode = $.ui.keyCode = {
        BACKSPACE: 8,
        COMMA: 188,
        DELETE: 46,
        DOWN: 40,
        END: 35,
        ENTER: 13,
        ESCAPE: 27,
        HOME: 36,
        LEFT: 37,
        PAGE_DOWN: 34,
        PAGE_UP: 33,
        PERIOD: 190,
        RIGHT: 39,
        SPACE: 32,
        TAB: 9,
        UP: 38
    };




// Internal use only
    var escapeSelector = $.ui.escapeSelector = ( function() {
        var selectorEscape = /([!"#$%&'()*+,./:;<=>?@[\]^`{|}~])/g;
        return function( selector ) {
            return selector.replace( selectorEscape, "\\$1" );
        };
    } )();


    /*!
     * jQuery UI Labels 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: labels
//>>group: Core
//>>description: Find all the labels associated with a given input
//>>docs: http://api.jqueryui.com/labels/



    var labels = $.fn.labels = function() {
        var ancestor, selector, id, labels, ancestors;

        // Check control.labels first
        if ( this[ 0 ].labels && this[ 0 ].labels.length ) {
            return this.pushStack( this[ 0 ].labels );
        }

        // Support: IE <= 11, FF <= 37, Android <= 2.3 only
        // Above browsers do not support control.labels. Everything below is to support them
        // as well as document fragments. control.labels does not work on document fragments
        labels = this.eq( 0 ).parents( "label" );

        // Look for the label based on the id
        id = this.attr( "id" );
        if ( id ) {

            // We don't search against the document in case the element
            // is disconnected from the DOM
            ancestor = this.eq( 0 ).parents().last();

            // Get a full set of top level ancestors
            ancestors = ancestor.add( ancestor.length ? ancestor.siblings() : this.siblings() );

            // Create a selector for the label based on the id
            selector = "label[for='" + $.ui.escapeSelector( id ) + "']";

            labels = labels.add( ancestors.find( selector ).addBack( selector ) );

        }

        // Return whatever we have found for labels
        return this.pushStack( labels );
    };


    /*!
     * jQuery UI Scroll Parent 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: scrollParent
//>>group: Core
//>>description: Get the closest ancestor element that is scrollable.
//>>docs: http://api.jqueryui.com/scrollParent/



    var scrollParent = $.fn.scrollParent = function( includeHidden ) {
        var position = this.css( "position" ),
            excludeStaticParent = position === "absolute",
            overflowRegex = includeHidden ? /(auto|scroll|hidden)/ : /(auto|scroll)/,
            scrollParent = this.parents().filter( function() {
                var parent = $( this );
                if ( excludeStaticParent && parent.css( "position" ) === "static" ) {
                    return false;
                }
                return overflowRegex.test( parent.css( "overflow" ) + parent.css( "overflow-y" ) +
                    parent.css( "overflow-x" ) );
            } ).eq( 0 );

        return position === "fixed" || !scrollParent.length ?
            $( this[ 0 ].ownerDocument || document ) :
            scrollParent;
    };


    /*!
     * jQuery UI Tabbable 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: :tabbable Selector
//>>group: Core
//>>description: Selects elements which can be tabbed to.
//>>docs: http://api.jqueryui.com/tabbable-selector/



    var tabbable = $.extend( $.expr[ ":" ], {
        tabbable: function( element ) {
            var tabIndex = $.attr( element, "tabindex" ),
                hasTabindex = tabIndex != null;
            return ( !hasTabindex || tabIndex >= 0 ) && $.ui.focusable( element, hasTabindex );
        }
    } );


    /*!
     * jQuery UI Unique ID 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: uniqueId
//>>group: Core
//>>description: Functions to generate and remove uniqueId's
//>>docs: http://api.jqueryui.com/uniqueId/



    var uniqueId = $.fn.extend( {
        uniqueId: ( function() {
            var uuid = 0;

            return function() {
                return this.each( function() {
                    if ( !this.id ) {
                        this.id = "ui-id-" + ( ++uuid );
                    }
                } );
            };
        } )(),

        removeUniqueId: function() {
            return this.each( function() {
                if ( /^ui-id-\d+$/.test( this.id ) ) {
                    $( this ).removeAttr( "id" );
                }
            } );
        }
    } );




// This file is deprecated
    var ie = $.ui.ie = !!/msie [\w.]+/.exec( navigator.userAgent.toLowerCase() );

    /*!
     * jQuery UI Mouse 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Mouse
//>>group: Widgets
//>>description: Abstracts mouse-based interactions to assist in creating certain widgets.
//>>docs: http://api.jqueryui.com/mouse/



    var mouseHandled = false;
    $( document ).on( "mouseup", function() {
        mouseHandled = false;
    } );

    var widgetsMouse = $.widget( "ui.mouse", {
        version: "1.12.1",
        options: {
            cancel: "input, textarea, button, select, option",
            distance: 1,
            delay: 0
        },
        _mouseInit: function() {
            var that = this;

            this.element
                .on( "mousedown." + this.widgetName, function( event ) {
                    return that._mouseDown( event );
                } )
                .on( "click." + this.widgetName, function( event ) {
                    if ( true === $.data( event.target, that.widgetName + ".preventClickEvent" ) ) {
                        $.removeData( event.target, that.widgetName + ".preventClickEvent" );
                        event.stopImmediatePropagation();
                        return false;
                    }
                } );

            this.started = false;
        },

        // TODO: make sure destroying one instance of mouse doesn't mess with
        // other instances of mouse
        _mouseDestroy: function() {
            this.element.off( "." + this.widgetName );
            if ( this._mouseMoveDelegate ) {
                this.document
                    .off( "mousemove." + this.widgetName, this._mouseMoveDelegate )
                    .off( "mouseup." + this.widgetName, this._mouseUpDelegate );
            }
        },

        _mouseDown: function( event ) {

            // don't let more than one widget handle mouseStart
            if ( mouseHandled ) {
                return;
            }

            this._mouseMoved = false;

            // We may have missed mouseup (out of window)
            ( this._mouseStarted && this._mouseUp( event ) );

            this._mouseDownEvent = event;

            var that = this,
                btnIsLeft = ( event.which === 1 ),

                // event.target.nodeName works around a bug in IE 8 with
                // disabled inputs (#7620)
                elIsCancel = ( typeof this.options.cancel === "string" && event.target.nodeName ?
                    $( event.target ).closest( this.options.cancel ).length : false );
            if ( !btnIsLeft || elIsCancel || !this._mouseCapture( event ) ) {
                return true;
            }

            this.mouseDelayMet = !this.options.delay;
            if ( !this.mouseDelayMet ) {
                this._mouseDelayTimer = setTimeout( function() {
                    that.mouseDelayMet = true;
                }, this.options.delay );
            }

            if ( this._mouseDistanceMet( event ) && this._mouseDelayMet( event ) ) {
                this._mouseStarted = ( this._mouseStart( event ) !== false );
                if ( !this._mouseStarted ) {
                    event.preventDefault();
                    return true;
                }
            }

            // Click event may never have fired (Gecko & Opera)
            if ( true === $.data( event.target, this.widgetName + ".preventClickEvent" ) ) {
                $.removeData( event.target, this.widgetName + ".preventClickEvent" );
            }

            // These delegates are required to keep context
            this._mouseMoveDelegate = function( event ) {
                return that._mouseMove( event );
            };
            this._mouseUpDelegate = function( event ) {
                return that._mouseUp( event );
            };

            this.document
                .on( "mousemove." + this.widgetName, this._mouseMoveDelegate )
                .on( "mouseup." + this.widgetName, this._mouseUpDelegate );

            event.preventDefault();

            mouseHandled = true;
            return true;
        },

        _mouseMove: function( event ) {

            // Only check for mouseups outside the document if you've moved inside the document
            // at least once. This prevents the firing of mouseup in the case of IE<9, which will
            // fire a mousemove event if content is placed under the cursor. See #7778
            // Support: IE <9
            if ( this._mouseMoved ) {

                // IE mouseup check - mouseup happened when mouse was out of window
                if ( $.ui.ie && ( !document.documentMode || document.documentMode < 9 ) &&
                    !event.button ) {
                    return this._mouseUp( event );

                    // Iframe mouseup check - mouseup occurred in another document
                } else if ( !event.which ) {

                    // Support: Safari <=8 - 9
                    // Safari sets which to 0 if you press any of the following keys
                    // during a drag (#14461)
                    if ( event.originalEvent.altKey || event.originalEvent.ctrlKey ||
                        event.originalEvent.metaKey || event.originalEvent.shiftKey ) {
                        this.ignoreMissingWhich = true;
                    } else if ( !this.ignoreMissingWhich ) {
                        return this._mouseUp( event );
                    }
                }
            }

            if ( event.which || event.button ) {
                this._mouseMoved = true;
            }

            if ( this._mouseStarted ) {
                this._mouseDrag( event );
                return event.preventDefault();
            }

            if ( this._mouseDistanceMet( event ) && this._mouseDelayMet( event ) ) {
                this._mouseStarted =
                    ( this._mouseStart( this._mouseDownEvent, event ) !== false );
                ( this._mouseStarted ? this._mouseDrag( event ) : this._mouseUp( event ) );
            }

            return !this._mouseStarted;
        },

        _mouseUp: function( event ) {
            this.document
                .off( "mousemove." + this.widgetName, this._mouseMoveDelegate )
                .off( "mouseup." + this.widgetName, this._mouseUpDelegate );

            if ( this._mouseStarted ) {
                this._mouseStarted = false;

                if ( event.target === this._mouseDownEvent.target ) {
                    $.data( event.target, this.widgetName + ".preventClickEvent", true );
                }

                this._mouseStop( event );
            }

            if ( this._mouseDelayTimer ) {
                clearTimeout( this._mouseDelayTimer );
                delete this._mouseDelayTimer;
            }

            this.ignoreMissingWhich = false;
            mouseHandled = false;
            event.preventDefault();
        },

        _mouseDistanceMet: function( event ) {
            return ( Math.max(
                    Math.abs( this._mouseDownEvent.pageX - event.pageX ),
                    Math.abs( this._mouseDownEvent.pageY - event.pageY )
                ) >= this.options.distance
            );
        },

        _mouseDelayMet: function( /* event */ ) {
            return this.mouseDelayMet;
        },

        // These are placeholder methods, to be overriden by extending plugin
        _mouseStart: function( /* event */ ) {},
        _mouseDrag: function( /* event */ ) {},
        _mouseStop: function( /* event */ ) {},
        _mouseCapture: function( /* event */ ) { return true; }
    } );




// $.ui.plugin is deprecated. Use $.widget() extensions instead.
    var plugin = $.ui.plugin = {
        add: function( module, option, set ) {
            var i,
                proto = $.ui[ module ].prototype;
            for ( i in set ) {
                proto.plugins[ i ] = proto.plugins[ i ] || [];
                proto.plugins[ i ].push( [ option, set[ i ] ] );
            }
        },
        call: function( instance, name, args, allowDisconnected ) {
            var i,
                set = instance.plugins[ name ];

            if ( !set ) {
                return;
            }

            if ( !allowDisconnected && ( !instance.element[ 0 ].parentNode ||
                instance.element[ 0 ].parentNode.nodeType === 11 ) ) {
                return;
            }

            for ( i = 0; i < set.length; i++ ) {
                if ( instance.options[ set[ i ][ 0 ] ] ) {
                    set[ i ][ 1 ].apply( instance.element, args );
                }
            }
        }
    };



    var safeActiveElement = $.ui.safeActiveElement = function( document ) {
        var activeElement;

        // Support: IE 9 only
        // IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
        try {
            activeElement = document.activeElement;
        } catch ( error ) {
            activeElement = document.body;
        }

        // Support: IE 9 - 11 only
        // IE may return null instead of an element
        // Interestingly, this only seems to occur when NOT in an iframe
        if ( !activeElement ) {
            activeElement = document.body;
        }

        // Support: IE 11 only
        // IE11 returns a seemingly empty object in some cases when accessing
        // document.activeElement from an <iframe>
        if ( !activeElement.nodeName ) {
            activeElement = document.body;
        }

        return activeElement;
    };



    var safeBlur = $.ui.safeBlur = function( element ) {

        // Support: IE9 - 10 only
        // If the <body> is blurred, IE will switch windows, see #9420
        if ( element && element.nodeName.toLowerCase() !== "body" ) {
            $( element ).trigger( "blur" );
        }
    };


    /*!
     * jQuery UI Draggable 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Draggable
//>>group: Interactions
//>>description: Enables dragging functionality for any element.
//>>docs: http://api.jqueryui.com/draggable/
//>>demos: http://jqueryui.com/draggable/
//>>css.structure: ../../themes/base/draggable.css



    $.widget( "ui.draggable", $.ui.mouse, {
        version: "1.12.1",
        widgetEventPrefix: "drag",
        options: {
            addClasses: true,
            appendTo: "parent",
            axis: false,
            connectToSortable: false,
            containment: false,
            cursor: "auto",
            cursorAt: false,
            grid: false,
            handle: false,
            helper: "original",
            iframeFix: false,
            opacity: false,
            refreshPositions: false,
            revert: false,
            revertDuration: 500,
            scope: "default",
            scroll: true,
            scrollSensitivity: 20,
            scrollSpeed: 20,
            snap: false,
            snapMode: "both",
            snapTolerance: 20,
            stack: false,
            zIndex: false,

            // Callbacks
            drag: null,
            start: null,
            stop: null
        },
        _create: function() {

            if ( this.options.helper === "original" ) {
                this._setPositionRelative();
            }
            if ( this.options.addClasses ) {
                this._addClass( "ui-draggable" );
            }
            this._setHandleClassName();

            this._mouseInit();
        },

        _setOption: function( key, value ) {
            this._super( key, value );
            if ( key === "handle" ) {
                this._removeHandleClassName();
                this._setHandleClassName();
            }
        },

        _destroy: function() {
            if ( ( this.helper || this.element ).is( ".ui-draggable-dragging" ) ) {
                this.destroyOnClear = true;
                return;
            }
            this._removeHandleClassName();
            this._mouseDestroy();
        },

        _mouseCapture: function( event ) {
            var o = this.options;

            // Among others, prevent a drag on a resizable-handle
            if ( this.helper || o.disabled ||
                $( event.target ).closest( ".ui-resizable-handle" ).length > 0 ) {
                return false;
            }

            //Quit if we're not on a valid handle
            this.handle = this._getHandle( event );
            if ( !this.handle ) {
                return false;
            }

            this._blurActiveElement( event );

            this._blockFrames( o.iframeFix === true ? "iframe" : o.iframeFix );

            return true;

        },

        _blockFrames: function( selector ) {
            this.iframeBlocks = this.document.find( selector ).map( function() {
                var iframe = $( this );

                return $( "<div>" )
                    .css( "position", "absolute" )
                    .appendTo( iframe.parent() )
                    .outerWidth( iframe.outerWidth() )
                    .outerHeight( iframe.outerHeight() )
                    .offset( iframe.offset() )[ 0 ];
            } );
        },

        _unblockFrames: function() {
            if ( this.iframeBlocks ) {
                this.iframeBlocks.remove();
                delete this.iframeBlocks;
            }
        },

        _blurActiveElement: function( event ) {
            var activeElement = $.ui.safeActiveElement( this.document[ 0 ] ),
                target = $( event.target );

            // Don't blur if the event occurred on an element that is within
            // the currently focused element
            // See #10527, #12472
            if ( target.closest( activeElement ).length ) {
                return;
            }

            // Blur any element that currently has focus, see #4261
            $.ui.safeBlur( activeElement );
        },

        _mouseStart: function( event ) {

            var o = this.options;

            //Create and append the visible helper
            this.helper = this._createHelper( event );

            this._addClass( this.helper, "ui-draggable-dragging" );

            //Cache the helper size
            this._cacheHelperProportions();

            //If ddmanager is used for droppables, set the global draggable
            if ( $.ui.ddmanager ) {
                $.ui.ddmanager.current = this;
            }

            /*
             * - Position generation -
             * This block generates everything position related - it's the core of draggables.
             */

            //Cache the margins of the original element
            this._cacheMargins();

            //Store the helper's css position
            this.cssPosition = this.helper.css( "position" );
            this.scrollParent = this.helper.scrollParent( true );
            this.offsetParent = this.helper.offsetParent();
            this.hasFixedAncestor = this.helper.parents().filter( function() {
                    return $( this ).css( "position" ) === "fixed";
                } ).length > 0;

            //The element's absolute position on the page minus margins
            this.positionAbs = this.element.offset();
            this._refreshOffsets( event );

            //Generate the original position
            this.originalPosition = this.position = this._generatePosition( event, false );
            this.originalPageX = event.pageX;
            this.originalPageY = event.pageY;

            //Adjust the mouse offset relative to the helper if "cursorAt" is supplied
            ( o.cursorAt && this._adjustOffsetFromHelper( o.cursorAt ) );

            //Set a containment if given in the options
            this._setContainment();

            //Trigger event + callbacks
            if ( this._trigger( "start", event ) === false ) {
                this._clear();
                return false;
            }

            //Recache the helper size
            this._cacheHelperProportions();

            //Prepare the droppable offsets
            if ( $.ui.ddmanager && !o.dropBehaviour ) {
                $.ui.ddmanager.prepareOffsets( this, event );
            }

            // Execute the drag once - this causes the helper not to be visible before getting its
            // correct position
            this._mouseDrag( event, true );

            // If the ddmanager is used for droppables, inform the manager that dragging has started
            // (see #5003)
            if ( $.ui.ddmanager ) {
                $.ui.ddmanager.dragStart( this, event );
            }

            return true;
        },

        _refreshOffsets: function( event ) {
            this.offset = {
                top: this.positionAbs.top - this.margins.top,
                left: this.positionAbs.left - this.margins.left,
                scroll: false,
                parent: this._getParentOffset(),
                relative: this._getRelativeOffset()
            };

            this.offset.click = {
                left: event.pageX - this.offset.left,
                top: event.pageY - this.offset.top
            };
        },

        _mouseDrag: function( event, noPropagation ) {

            // reset any necessary cached properties (see #5009)
            if ( this.hasFixedAncestor ) {
                this.offset.parent = this._getParentOffset();
            }

            //Compute the helpers position
            this.position = this._generatePosition( event, true );
            this.positionAbs = this._convertPositionTo( "absolute" );

            //Call plugins and callbacks and use the resulting position if something is returned
            if ( !noPropagation ) {
                var ui = this._uiHash();
                if ( this._trigger( "drag", event, ui ) === false ) {
                    this._mouseUp( new $.Event( "mouseup", event ) );
                    return false;
                }
                this.position = ui.position;
            }

            this.helper[ 0 ].style.left = this.position.left + "px";
            this.helper[ 0 ].style.top = this.position.top + "px";

            if ( $.ui.ddmanager ) {
                $.ui.ddmanager.drag( this, event );
            }

            return false;
        },

        _mouseStop: function( event ) {

            //If we are using droppables, inform the manager about the drop
            var that = this,
                dropped = false;
            if ( $.ui.ddmanager && !this.options.dropBehaviour ) {
                dropped = $.ui.ddmanager.drop( this, event );
            }

            //if a drop comes from outside (a sortable)
            if ( this.dropped ) {
                dropped = this.dropped;
                this.dropped = false;
            }

            if ( ( this.options.revert === "invalid" && !dropped ) ||
                ( this.options.revert === "valid" && dropped ) ||
                this.options.revert === true || ( $.isFunction( this.options.revert ) &&
                this.options.revert.call( this.element, dropped ) )
            ) {
                $( this.helper ).animate(
                    this.originalPosition,
                    parseInt( this.options.revertDuration, 10 ),
                    function() {
                        if ( that._trigger( "stop", event ) !== false ) {
                            that._clear();
                        }
                    }
                );
            } else {
                if ( this._trigger( "stop", event ) !== false ) {
                    this._clear();
                }
            }

            return false;
        },

        _mouseUp: function( event ) {
            this._unblockFrames();

            // If the ddmanager is used for droppables, inform the manager that dragging has stopped
            // (see #5003)
            if ( $.ui.ddmanager ) {
                $.ui.ddmanager.dragStop( this, event );
            }

            // Only need to focus if the event occurred on the draggable itself, see #10527
            if ( this.handleElement.is( event.target ) ) {

                // The interaction is over; whether or not the click resulted in a drag,
                // focus the element
                this.element.trigger( "focus" );
            }

            return $.ui.mouse.prototype._mouseUp.call( this, event );
        },

        cancel: function() {

            if ( this.helper.is( ".ui-draggable-dragging" ) ) {
                this._mouseUp( new $.Event( "mouseup", { target: this.element[ 0 ] } ) );
            } else {
                this._clear();
            }

            return this;

        },

        _getHandle: function( event ) {
            return this.options.handle ?
                !!$( event.target ).closest( this.element.find( this.options.handle ) ).length :
                true;
        },

        _setHandleClassName: function() {
            this.handleElement = this.options.handle ?
                this.element.find( this.options.handle ) : this.element;
            this._addClass( this.handleElement, "ui-draggable-handle" );
        },

        _removeHandleClassName: function() {
            this._removeClass( this.handleElement, "ui-draggable-handle" );
        },

        _createHelper: function( event ) {

            var o = this.options,
                helperIsFunction = $.isFunction( o.helper ),
                helper = helperIsFunction ?
                    $( o.helper.apply( this.element[ 0 ], [ event ] ) ) :
                    ( o.helper === "clone" ?
                        this.element.clone().removeAttr( "id" ) :
                        this.element );

            if ( !helper.parents( "body" ).length ) {
                helper.appendTo( ( o.appendTo === "parent" ?
                    this.element[ 0 ].parentNode :
                    o.appendTo ) );
            }

            // Http://bugs.jqueryui.com/ticket/9446
            // a helper function can return the original element
            // which wouldn't have been set to relative in _create
            if ( helperIsFunction && helper[ 0 ] === this.element[ 0 ] ) {
                this._setPositionRelative();
            }

            if ( helper[ 0 ] !== this.element[ 0 ] &&
                !( /(fixed|absolute)/ ).test( helper.css( "position" ) ) ) {
                helper.css( "position", "absolute" );
            }

            return helper;

        },

        _setPositionRelative: function() {
            if ( !( /^(?:r|a|f)/ ).test( this.element.css( "position" ) ) ) {
                this.element[ 0 ].style.position = "relative";
            }
        },

        _adjustOffsetFromHelper: function( obj ) {
            if ( typeof obj === "string" ) {
                obj = obj.split( " " );
            }
            if ( $.isArray( obj ) ) {
                obj = { left: +obj[ 0 ], top: +obj[ 1 ] || 0 };
            }
            if ( "left" in obj ) {
                this.offset.click.left = obj.left + this.margins.left;
            }
            if ( "right" in obj ) {
                this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
            }
            if ( "top" in obj ) {
                this.offset.click.top = obj.top + this.margins.top;
            }
            if ( "bottom" in obj ) {
                this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
            }
        },

        _isRootNode: function( element ) {
            return ( /(html|body)/i ).test( element.tagName ) || element === this.document[ 0 ];
        },

        _getParentOffset: function() {

            //Get the offsetParent and cache its position
            var po = this.offsetParent.offset(),
                document = this.document[ 0 ];

            // This is a special case where we need to modify a offset calculated on start, since the
            // following happened:
            // 1. The position of the helper is absolute, so it's position is calculated based on the
            // next positioned parent
            // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't
            // the document, which means that the scroll is included in the initial calculation of the
            // offset of the parent, and never recalculated upon drag
            if ( this.cssPosition === "absolute" && this.scrollParent[ 0 ] !== document &&
                $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) {
                po.left += this.scrollParent.scrollLeft();
                po.top += this.scrollParent.scrollTop();
            }

            if ( this._isRootNode( this.offsetParent[ 0 ] ) ) {
                po = { top: 0, left: 0 };
            }

            return {
                top: po.top + ( parseInt( this.offsetParent.css( "borderTopWidth" ), 10 ) || 0 ),
                left: po.left + ( parseInt( this.offsetParent.css( "borderLeftWidth" ), 10 ) || 0 )
            };

        },

        _getRelativeOffset: function() {
            if ( this.cssPosition !== "relative" ) {
                return { top: 0, left: 0 };
            }

            var p = this.element.position(),
                scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );

            return {
                top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) +
                ( !scrollIsRootNode ? this.scrollParent.scrollTop() : 0 ),
                left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) +
                ( !scrollIsRootNode ? this.scrollParent.scrollLeft() : 0 )
            };

        },

        _cacheMargins: function() {
            this.margins = {
                left: ( parseInt( this.element.css( "marginLeft" ), 10 ) || 0 ),
                top: ( parseInt( this.element.css( "marginTop" ), 10 ) || 0 ),
                right: ( parseInt( this.element.css( "marginRight" ), 10 ) || 0 ),
                bottom: ( parseInt( this.element.css( "marginBottom" ), 10 ) || 0 )
            };
        },

        _cacheHelperProportions: function() {
            this.helperProportions = {
                width: this.helper.outerWidth(),
                height: this.helper.outerHeight()
            };
        },

        _setContainment: function() {

            var isUserScrollable, c, ce,
                o = this.options,
                document = this.document[ 0 ];

            this.relativeContainer = null;

            if ( !o.containment ) {
                this.containment = null;
                return;
            }

            if ( o.containment === "window" ) {
                this.containment = [
                    $( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left,
                    $( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top,
                    $( window ).scrollLeft() + $( window ).width() -
                    this.helperProportions.width - this.margins.left,
                    $( window ).scrollTop() +
                    ( $( window ).height() || document.body.parentNode.scrollHeight ) -
                    this.helperProportions.height - this.margins.top
                ];
                return;
            }

            if ( o.containment === "document" ) {
                this.containment = [
                    0,
                    0,
                    $( document ).width() - this.helperProportions.width - this.margins.left,
                    ( $( document ).height() || document.body.parentNode.scrollHeight ) -
                    this.helperProportions.height - this.margins.top
                ];
                return;
            }

            if ( o.containment.constructor === Array ) {
                this.containment = o.containment;
                return;
            }

            if ( o.containment === "parent" ) {
                o.containment = this.helper[ 0 ].parentNode;
            }

            c = $( o.containment );
            ce = c[ 0 ];

            if ( !ce ) {
                return;
            }

            isUserScrollable = /(scroll|auto)/.test( c.css( "overflow" ) );

            this.containment = [
                ( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) +
                ( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ),
                ( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) +
                ( parseInt( c.css( "paddingTop" ), 10 ) || 0 ),
                ( isUserScrollable ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) -
                ( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) -
                ( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) -
                this.helperProportions.width -
                this.margins.left -
                this.margins.right,
                ( isUserScrollable ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) -
                ( parseInt( c.css( "borderBottomWidth" ), 10 ) || 0 ) -
                ( parseInt( c.css( "paddingBottom" ), 10 ) || 0 ) -
                this.helperProportions.height -
                this.margins.top -
                this.margins.bottom
            ];
            this.relativeContainer = c;
        },

        _convertPositionTo: function( d, pos ) {

            if ( !pos ) {
                pos = this.position;
            }

            var mod = d === "absolute" ? 1 : -1,
                scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );

            return {
                top: (

                    // The absolute mouse position
                    pos.top	+

                    // Only for relative positioned nodes: Relative offset from element to offset parent
                    this.offset.relative.top * mod +

                    // The offsetParent's offset without borders (offset + border)
                    this.offset.parent.top * mod -
                    ( ( this.cssPosition === "fixed" ?
                        -this.offset.scroll.top :
                        ( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) * mod )
                ),
                left: (

                    // The absolute mouse position
                    pos.left +

                    // Only for relative positioned nodes: Relative offset from element to offset parent
                    this.offset.relative.left * mod +

                    // The offsetParent's offset without borders (offset + border)
                    this.offset.parent.left * mod	-
                    ( ( this.cssPosition === "fixed" ?
                        -this.offset.scroll.left :
                        ( scrollIsRootNode ? 0 : this.offset.scroll.left ) ) * mod )
                )
            };

        },

        _generatePosition: function( event, constrainPosition ) {

            var containment, co, top, left,
                o = this.options,
                scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ),
                pageX = event.pageX,
                pageY = event.pageY;

            // Cache the scroll
            if ( !scrollIsRootNode || !this.offset.scroll ) {
                this.offset.scroll = {
                    top: this.scrollParent.scrollTop(),
                    left: this.scrollParent.scrollLeft()
                };
            }

            /*
             * - Position constraining -
             * Constrain the position to a mix of grid, containment.
             */

            // If we are not dragging yet, we won't check for options
            if ( constrainPosition ) {
                if ( this.containment ) {
                    if ( this.relativeContainer ) {
                        co = this.relativeContainer.offset();
                        containment = [
                            this.containment[ 0 ] + co.left,
                            this.containment[ 1 ] + co.top,
                            this.containment[ 2 ] + co.left,
                            this.containment[ 3 ] + co.top
                        ];
                    } else {
                        containment = this.containment;
                    }

                    if ( event.pageX - this.offset.click.left < containment[ 0 ] ) {
                        pageX = containment[ 0 ] + this.offset.click.left;
                    }
                    if ( event.pageY - this.offset.click.top < containment[ 1 ] ) {
                        pageY = containment[ 1 ] + this.offset.click.top;
                    }
                    if ( event.pageX - this.offset.click.left > containment[ 2 ] ) {
                        pageX = containment[ 2 ] + this.offset.click.left;
                    }
                    if ( event.pageY - this.offset.click.top > containment[ 3 ] ) {
                        pageY = containment[ 3 ] + this.offset.click.top;
                    }
                }

                if ( o.grid ) {

                    //Check for grid elements set to 0 to prevent divide by 0 error causing invalid
                    // argument errors in IE (see ticket #6950)
                    top = o.grid[ 1 ] ? this.originalPageY + Math.round( ( pageY -
                            this.originalPageY ) / o.grid[ 1 ] ) * o.grid[ 1 ] : this.originalPageY;
                    pageY = containment ? ( ( top - this.offset.click.top >= containment[ 1 ] ||
                    top - this.offset.click.top > containment[ 3 ] ) ?
                        top :
                        ( ( top - this.offset.click.top >= containment[ 1 ] ) ?
                            top - o.grid[ 1 ] : top + o.grid[ 1 ] ) ) : top;

                    left = o.grid[ 0 ] ? this.originalPageX +
                        Math.round( ( pageX - this.originalPageX ) / o.grid[ 0 ] ) * o.grid[ 0 ] :
                        this.originalPageX;
                    pageX = containment ? ( ( left - this.offset.click.left >= containment[ 0 ] ||
                    left - this.offset.click.left > containment[ 2 ] ) ?
                        left :
                        ( ( left - this.offset.click.left >= containment[ 0 ] ) ?
                            left - o.grid[ 0 ] : left + o.grid[ 0 ] ) ) : left;
                }

                if ( o.axis === "y" ) {
                    pageX = this.originalPageX;
                }

                if ( o.axis === "x" ) {
                    pageY = this.originalPageY;
                }
            }

            return {
                top: (

                    // The absolute mouse position
                    pageY -

                    // Click offset (relative to the element)
                    this.offset.click.top -

                    // Only for relative positioned nodes: Relative offset from element to offset parent
                    this.offset.relative.top -

                    // The offsetParent's offset without borders (offset + border)
                    this.offset.parent.top +
                    ( this.cssPosition === "fixed" ?
                        -this.offset.scroll.top :
                        ( scrollIsRootNode ? 0 : this.offset.scroll.top ) )
                ),
                left: (

                    // The absolute mouse position
                    pageX -

                    // Click offset (relative to the element)
                    this.offset.click.left -

                    // Only for relative positioned nodes: Relative offset from element to offset parent
                    this.offset.relative.left -

                    // The offsetParent's offset without borders (offset + border)
                    this.offset.parent.left +
                    ( this.cssPosition === "fixed" ?
                        -this.offset.scroll.left :
                        ( scrollIsRootNode ? 0 : this.offset.scroll.left ) )
                )
            };

        },

        _clear: function() {
            this._removeClass( this.helper, "ui-draggable-dragging" );
            if ( this.helper[ 0 ] !== this.element[ 0 ] && !this.cancelHelperRemoval ) {
                this.helper.remove();
            }
            this.helper = null;
            this.cancelHelperRemoval = false;
            if ( this.destroyOnClear ) {
                this.destroy();
            }
        },

        // From now on bulk stuff - mainly helpers

        _trigger: function( type, event, ui ) {
            ui = ui || this._uiHash();
            $.ui.plugin.call( this, type, [ event, ui, this ], true );

            // Absolute position and offset (see #6884 ) have to be recalculated after plugins
            if ( /^(drag|start|stop)/.test( type ) ) {
                this.positionAbs = this._convertPositionTo( "absolute" );
                ui.offset = this.positionAbs;
            }
            return $.Widget.prototype._trigger.call( this, type, event, ui );
        },

        plugins: {},

        _uiHash: function() {
            return {
                helper: this.helper,
                position: this.position,
                originalPosition: this.originalPosition,
                offset: this.positionAbs
            };
        }

    } );

    $.ui.plugin.add( "draggable", "connectToSortable", {
        start: function( event, ui, draggable ) {
            var uiSortable = $.extend( {}, ui, {
                item: draggable.element
            } );

            draggable.sortables = [];
            $( draggable.options.connectToSortable ).each( function() {
                var sortable = $( this ).sortable( "instance" );

                if ( sortable && !sortable.options.disabled ) {
                    draggable.sortables.push( sortable );

                    // RefreshPositions is called at drag start to refresh the containerCache
                    // which is used in drag. This ensures it's initialized and synchronized
                    // with any changes that might have happened on the page since initialization.
                    sortable.refreshPositions();
                    sortable._trigger( "activate", event, uiSortable );
                }
            } );
        },
        stop: function( event, ui, draggable ) {
            var uiSortable = $.extend( {}, ui, {
                item: draggable.element
            } );

            draggable.cancelHelperRemoval = false;

            $.each( draggable.sortables, function() {
                var sortable = this;

                if ( sortable.isOver ) {
                    sortable.isOver = 0;

                    // Allow this sortable to handle removing the helper
                    draggable.cancelHelperRemoval = true;
                    sortable.cancelHelperRemoval = false;

                    // Use _storedCSS To restore properties in the sortable,
                    // as this also handles revert (#9675) since the draggable
                    // may have modified them in unexpected ways (#8809)
                    sortable._storedCSS = {
                        position: sortable.placeholder.css( "position" ),
                        top: sortable.placeholder.css( "top" ),
                        left: sortable.placeholder.css( "left" )
                    };

                    sortable._mouseStop( event );

                    // Once drag has ended, the sortable should return to using
                    // its original helper, not the shared helper from draggable
                    sortable.options.helper = sortable.options._helper;
                } else {

                    // Prevent this Sortable from removing the helper.
                    // However, don't set the draggable to remove the helper
                    // either as another connected Sortable may yet handle the removal.
                    sortable.cancelHelperRemoval = true;

                    sortable._trigger( "deactivate", event, uiSortable );
                }
            } );
        },
        drag: function( event, ui, draggable ) {
            $.each( draggable.sortables, function() {
                var innermostIntersecting = false,
                    sortable = this;

                // Copy over variables that sortable's _intersectsWith uses
                sortable.positionAbs = draggable.positionAbs;
                sortable.helperProportions = draggable.helperProportions;
                sortable.offset.click = draggable.offset.click;

                if ( sortable._intersectsWith( sortable.containerCache ) ) {
                    innermostIntersecting = true;

                    $.each( draggable.sortables, function() {

                        // Copy over variables that sortable's _intersectsWith uses
                        this.positionAbs = draggable.positionAbs;
                        this.helperProportions = draggable.helperProportions;
                        this.offset.click = draggable.offset.click;

                        if ( this !== sortable &&
                            this._intersectsWith( this.containerCache ) &&
                            $.contains( sortable.element[ 0 ], this.element[ 0 ] ) ) {
                            innermostIntersecting = false;
                        }

                        return innermostIntersecting;
                    } );
                }

                if ( innermostIntersecting ) {

                    // If it intersects, we use a little isOver variable and set it once,
                    // so that the move-in stuff gets fired only once.
                    if ( !sortable.isOver ) {
                        sortable.isOver = 1;

                        // Store draggable's parent in case we need to reappend to it later.
                        draggable._parent = ui.helper.parent();

                        sortable.currentItem = ui.helper
                            .appendTo( sortable.element )
                            .data( "ui-sortable-item", true );

                        // Store helper option to later restore it
                        sortable.options._helper = sortable.options.helper;

                        sortable.options.helper = function() {
                            return ui.helper[ 0 ];
                        };

                        // Fire the start events of the sortable with our passed browser event,
                        // and our own helper (so it doesn't create a new one)
                        event.target = sortable.currentItem[ 0 ];
                        sortable._mouseCapture( event, true );
                        sortable._mouseStart( event, true, true );

                        // Because the browser event is way off the new appended portlet,
                        // modify necessary variables to reflect the changes
                        sortable.offset.click.top = draggable.offset.click.top;
                        sortable.offset.click.left = draggable.offset.click.left;
                        sortable.offset.parent.left -= draggable.offset.parent.left -
                            sortable.offset.parent.left;
                        sortable.offset.parent.top -= draggable.offset.parent.top -
                            sortable.offset.parent.top;

                        draggable._trigger( "toSortable", event );

                        // Inform draggable that the helper is in a valid drop zone,
                        // used solely in the revert option to handle "valid/invalid".
                        draggable.dropped = sortable.element;

                        // Need to refreshPositions of all sortables in the case that
                        // adding to one sortable changes the location of the other sortables (#9675)
                        $.each( draggable.sortables, function() {
                            this.refreshPositions();
                        } );

                        // Hack so receive/update callbacks work (mostly)
                        draggable.currentItem = draggable.element;
                        sortable.fromOutside = draggable;
                    }

                    if ( sortable.currentItem ) {
                        sortable._mouseDrag( event );

                        // Copy the sortable's position because the draggable's can potentially reflect
                        // a relative position, while sortable is always absolute, which the dragged
                        // element has now become. (#8809)
                        ui.position = sortable.position;
                    }
                } else {

                    // If it doesn't intersect with the sortable, and it intersected before,
                    // we fake the drag stop of the sortable, but make sure it doesn't remove
                    // the helper by using cancelHelperRemoval.
                    if ( sortable.isOver ) {

                        sortable.isOver = 0;
                        sortable.cancelHelperRemoval = true;

                        // Calling sortable's mouseStop would trigger a revert,
                        // so revert must be temporarily false until after mouseStop is called.
                        sortable.options._revert = sortable.options.revert;
                        sortable.options.revert = false;

                        sortable._trigger( "out", event, sortable._uiHash( sortable ) );
                        sortable._mouseStop( event, true );

                        // Restore sortable behaviors that were modfied
                        // when the draggable entered the sortable area (#9481)
                        sortable.options.revert = sortable.options._revert;
                        sortable.options.helper = sortable.options._helper;

                        if ( sortable.placeholder ) {
                            sortable.placeholder.remove();
                        }

                        // Restore and recalculate the draggable's offset considering the sortable
                        // may have modified them in unexpected ways. (#8809, #10669)
                        ui.helper.appendTo( draggable._parent );
                        draggable._refreshOffsets( event );
                        ui.position = draggable._generatePosition( event, true );

                        draggable._trigger( "fromSortable", event );

                        // Inform draggable that the helper is no longer in a valid drop zone
                        draggable.dropped = false;

                        // Need to refreshPositions of all sortables just in case removing
                        // from one sortable changes the location of other sortables (#9675)
                        $.each( draggable.sortables, function() {
                            this.refreshPositions();
                        } );
                    }
                }
            } );
        }
    } );

    $.ui.plugin.add( "draggable", "cursor", {
        start: function( event, ui, instance ) {
            var t = $( "body" ),
                o = instance.options;

            if ( t.css( "cursor" ) ) {
                o._cursor = t.css( "cursor" );
            }
            t.css( "cursor", o.cursor );
        },
        stop: function( event, ui, instance ) {
            var o = instance.options;
            if ( o._cursor ) {
                $( "body" ).css( "cursor", o._cursor );
            }
        }
    } );

    $.ui.plugin.add( "draggable", "opacity", {
        start: function( event, ui, instance ) {
            var t = $( ui.helper ),
                o = instance.options;
            if ( t.css( "opacity" ) ) {
                o._opacity = t.css( "opacity" );
            }
            t.css( "opacity", o.opacity );
        },
        stop: function( event, ui, instance ) {
            var o = instance.options;
            if ( o._opacity ) {
                $( ui.helper ).css( "opacity", o._opacity );
            }
        }
    } );

    $.ui.plugin.add( "draggable", "scroll", {
        start: function( event, ui, i ) {
            if ( !i.scrollParentNotHidden ) {
                i.scrollParentNotHidden = i.helper.scrollParent( false );
            }

            if ( i.scrollParentNotHidden[ 0 ] !== i.document[ 0 ] &&
                i.scrollParentNotHidden[ 0 ].tagName !== "HTML" ) {
                i.overflowOffset = i.scrollParentNotHidden.offset();
            }
        },
        drag: function( event, ui, i  ) {

            var o = i.options,
                scrolled = false,
                scrollParent = i.scrollParentNotHidden[ 0 ],
                document = i.document[ 0 ];

            if ( scrollParent !== document && scrollParent.tagName !== "HTML" ) {
                if ( !o.axis || o.axis !== "x" ) {
                    if ( ( i.overflowOffset.top + scrollParent.offsetHeight ) - event.pageY <
                        o.scrollSensitivity ) {
                        scrollParent.scrollTop = scrolled = scrollParent.scrollTop + o.scrollSpeed;
                    } else if ( event.pageY - i.overflowOffset.top < o.scrollSensitivity ) {
                        scrollParent.scrollTop = scrolled = scrollParent.scrollTop - o.scrollSpeed;
                    }
                }

                if ( !o.axis || o.axis !== "y" ) {
                    if ( ( i.overflowOffset.left + scrollParent.offsetWidth ) - event.pageX <
                        o.scrollSensitivity ) {
                        scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft + o.scrollSpeed;
                    } else if ( event.pageX - i.overflowOffset.left < o.scrollSensitivity ) {
                        scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft - o.scrollSpeed;
                    }
                }

            } else {

                if ( !o.axis || o.axis !== "x" ) {
                    if ( event.pageY - $( document ).scrollTop() < o.scrollSensitivity ) {
                        scrolled = $( document ).scrollTop( $( document ).scrollTop() - o.scrollSpeed );
                    } else if ( $( window ).height() - ( event.pageY - $( document ).scrollTop() ) <
                        o.scrollSensitivity ) {
                        scrolled = $( document ).scrollTop( $( document ).scrollTop() + o.scrollSpeed );
                    }
                }

                if ( !o.axis || o.axis !== "y" ) {
                    if ( event.pageX - $( document ).scrollLeft() < o.scrollSensitivity ) {
                        scrolled = $( document ).scrollLeft(
                            $( document ).scrollLeft() - o.scrollSpeed
                        );
                    } else if ( $( window ).width() - ( event.pageX - $( document ).scrollLeft() ) <
                        o.scrollSensitivity ) {
                        scrolled = $( document ).scrollLeft(
                            $( document ).scrollLeft() + o.scrollSpeed
                        );
                    }
                }

            }

            if ( scrolled !== false && $.ui.ddmanager && !o.dropBehaviour ) {
                $.ui.ddmanager.prepareOffsets( i, event );
            }

        }
    } );

    $.ui.plugin.add( "draggable", "snap", {
        start: function( event, ui, i ) {

            var o = i.options;

            i.snapElements = [];

            $( o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap )
                .each( function() {
                    var $t = $( this ),
                        $o = $t.offset();
                    if ( this !== i.element[ 0 ] ) {
                        i.snapElements.push( {
                            item: this,
                            width: $t.outerWidth(), height: $t.outerHeight(),
                            top: $o.top, left: $o.left
                        } );
                    }
                } );

        },
        drag: function( event, ui, inst ) {

            var ts, bs, ls, rs, l, r, t, b, i, first,
                o = inst.options,
                d = o.snapTolerance,
                x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
                y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;

            for ( i = inst.snapElements.length - 1; i >= 0; i-- ) {

                l = inst.snapElements[ i ].left - inst.margins.left;
                r = l + inst.snapElements[ i ].width;
                t = inst.snapElements[ i ].top - inst.margins.top;
                b = t + inst.snapElements[ i ].height;

                if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d ||
                    !$.contains( inst.snapElements[ i ].item.ownerDocument,
                        inst.snapElements[ i ].item ) ) {
                    if ( inst.snapElements[ i ].snapping ) {
                        ( inst.options.snap.release &&
                        inst.options.snap.release.call(
                            inst.element,
                            event,
                            $.extend( inst._uiHash(), { snapItem: inst.snapElements[ i ].item } )
                        ) );
                    }
                    inst.snapElements[ i ].snapping = false;
                    continue;
                }

                if ( o.snapMode !== "inner" ) {
                    ts = Math.abs( t - y2 ) <= d;
                    bs = Math.abs( b - y1 ) <= d;
                    ls = Math.abs( l - x2 ) <= d;
                    rs = Math.abs( r - x1 ) <= d;
                    if ( ts ) {
                        ui.position.top = inst._convertPositionTo( "relative", {
                            top: t - inst.helperProportions.height,
                            left: 0
                        } ).top;
                    }
                    if ( bs ) {
                        ui.position.top = inst._convertPositionTo( "relative", {
                            top: b,
                            left: 0
                        } ).top;
                    }
                    if ( ls ) {
                        ui.position.left = inst._convertPositionTo( "relative", {
                            top: 0,
                            left: l - inst.helperProportions.width
                        } ).left;
                    }
                    if ( rs ) {
                        ui.position.left = inst._convertPositionTo( "relative", {
                            top: 0,
                            left: r
                        } ).left;
                    }
                }

                first = ( ts || bs || ls || rs );

                if ( o.snapMode !== "outer" ) {
                    ts = Math.abs( t - y1 ) <= d;
                    bs = Math.abs( b - y2 ) <= d;
                    ls = Math.abs( l - x1 ) <= d;
                    rs = Math.abs( r - x2 ) <= d;
                    if ( ts ) {
                        ui.position.top = inst._convertPositionTo( "relative", {
                            top: t,
                            left: 0
                        } ).top;
                    }
                    if ( bs ) {
                        ui.position.top = inst._convertPositionTo( "relative", {
                            top: b - inst.helperProportions.height,
                            left: 0
                        } ).top;
                    }
                    if ( ls ) {
                        ui.position.left = inst._convertPositionTo( "relative", {
                            top: 0,
                            left: l
                        } ).left;
                    }
                    if ( rs ) {
                        ui.position.left = inst._convertPositionTo( "relative", {
                            top: 0,
                            left: r - inst.helperProportions.width
                        } ).left;
                    }
                }

                if ( !inst.snapElements[ i ].snapping && ( ts || bs || ls || rs || first ) ) {
                    ( inst.options.snap.snap &&
                    inst.options.snap.snap.call(
                        inst.element,
                        event,
                        $.extend( inst._uiHash(), {
                            snapItem: inst.snapElements[ i ].item
                        } ) ) );
                }
                inst.snapElements[ i ].snapping = ( ts || bs || ls || rs || first );

            }

        }
    } );

    $.ui.plugin.add( "draggable", "stack", {
        start: function( event, ui, instance ) {
            var min,
                o = instance.options,
                group = $.makeArray( $( o.stack ) ).sort( function( a, b ) {
                    return ( parseInt( $( a ).css( "zIndex" ), 10 ) || 0 ) -
                        ( parseInt( $( b ).css( "zIndex" ), 10 ) || 0 );
                } );

            if ( !group.length ) { return; }

            min = parseInt( $( group[ 0 ] ).css( "zIndex" ), 10 ) || 0;
            $( group ).each( function( i ) {
                $( this ).css( "zIndex", min + i );
            } );
            this.css( "zIndex", ( min + group.length ) );
        }
    } );

    $.ui.plugin.add( "draggable", "zIndex", {
        start: function( event, ui, instance ) {
            var t = $( ui.helper ),
                o = instance.options;

            if ( t.css( "zIndex" ) ) {
                o._zIndex = t.css( "zIndex" );
            }
            t.css( "zIndex", o.zIndex );
        },
        stop: function( event, ui, instance ) {
            var o = instance.options;

            if ( o._zIndex ) {
                $( ui.helper ).css( "zIndex", o._zIndex );
            }
        }
    } );

    var widgetsDraggable = $.ui.draggable;


    /*!
     * jQuery UI Resizable 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Resizable
//>>group: Interactions
//>>description: Enables resize functionality for any element.
//>>docs: http://api.jqueryui.com/resizable/
//>>demos: http://jqueryui.com/resizable/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/resizable.css
//>>css.theme: ../../themes/base/theme.css



    $.widget( "ui.resizable", $.ui.mouse, {
        version: "1.12.1",
        widgetEventPrefix: "resize",
        options: {
            alsoResize: false,
            animate: false,
            animateDuration: "slow",
            animateEasing: "swing",
            aspectRatio: false,
            autoHide: false,
            classes: {
                "ui-resizable-se": "ui-icon ui-icon-gripsmall-diagonal-se"
            },
            containment: false,
            ghost: false,
            grid: false,
            handles: "e,s,se",
            helper: false,
            maxHeight: null,
            maxWidth: null,
            minHeight: 10,
            minWidth: 10,

            // See #7960
            zIndex: 90,

            // Callbacks
            resize: null,
            start: null,
            stop: null
        },

        _num: function( value ) {
            return parseFloat( value ) || 0;
        },

        _isNumber: function( value ) {
            return !isNaN( parseFloat( value ) );
        },

        _hasScroll: function( el, a ) {

            if ( $( el ).css( "overflow" ) === "hidden" ) {
                return false;
            }

            var scroll = ( a && a === "left" ) ? "scrollLeft" : "scrollTop",
                has = false;

            if ( el[ scroll ] > 0 ) {
                return true;
            }

            // TODO: determine which cases actually cause this to happen
            // if the element doesn't have the scroll set, see if it's possible to
            // set the scroll
            el[ scroll ] = 1;
            has = ( el[ scroll ] > 0 );
            el[ scroll ] = 0;
            return has;
        },

        _create: function() {

            var margins,
                o = this.options,
                that = this;
            this._addClass( "ui-resizable" );

            $.extend( this, {
                _aspectRatio: !!( o.aspectRatio ),
                aspectRatio: o.aspectRatio,
                originalElement: this.element,
                _proportionallyResizeElements: [],
                _helper: o.helper || o.ghost || o.animate ? o.helper || "ui-resizable-helper" : null
            } );

            // Wrap the element if it cannot hold child nodes
            if ( this.element[ 0 ].nodeName.match( /^(canvas|textarea|input|select|button|img)$/i ) ) {

                this.element.wrap(
                    $( "<div class='ui-wrapper' style='overflow: hidden;'></div>" ).css( {
                        position: this.element.css( "position" ),
                        width: this.element.outerWidth(),
                        height: this.element.outerHeight(),
                        top: this.element.css( "top" ),
                        left: this.element.css( "left" )
                    } )
                );

                this.element = this.element.parent().data(
                    "ui-resizable", this.element.resizable( "instance" )
                );

                this.elementIsWrapper = true;

                margins = {
                    marginTop: this.originalElement.css( "marginTop" ),
                    marginRight: this.originalElement.css( "marginRight" ),
                    marginBottom: this.originalElement.css( "marginBottom" ),
                    marginLeft: this.originalElement.css( "marginLeft" )
                };

                this.element.css( margins );
                this.originalElement.css( "margin", 0 );

                // support: Safari
                // Prevent Safari textarea resize
                this.originalResizeStyle = this.originalElement.css( "resize" );
                this.originalElement.css( "resize", "none" );

                this._proportionallyResizeElements.push( this.originalElement.css( {
                    position: "static",
                    zoom: 1,
                    display: "block"
                } ) );

                // Support: IE9
                // avoid IE jump (hard set the margin)
                this.originalElement.css( margins );

                this._proportionallyResize();
            }

            this._setupHandles();

            if ( o.autoHide ) {
                $( this.element )
                    .on( "mouseenter", function() {
                        if ( o.disabled ) {
                            return;
                        }
                        that._removeClass( "ui-resizable-autohide" );
                        that._handles.show();
                    } )
                    .on( "mouseleave", function() {
                        if ( o.disabled ) {
                            return;
                        }
                        if ( !that.resizing ) {
                            that._addClass( "ui-resizable-autohide" );
                            that._handles.hide();
                        }
                    } );
            }

            this._mouseInit();
        },

        _destroy: function() {

            this._mouseDestroy();

            var wrapper,
                _destroy = function( exp ) {
                    $( exp )
                        .removeData( "resizable" )
                        .removeData( "ui-resizable" )
                        .off( ".resizable" )
                        .find( ".ui-resizable-handle" )
                        .remove();
                };

            // TODO: Unwrap at same DOM position
            if ( this.elementIsWrapper ) {
                _destroy( this.element );
                wrapper = this.element;
                this.originalElement.css( {
                    position: wrapper.css( "position" ),
                    width: wrapper.outerWidth(),
                    height: wrapper.outerHeight(),
                    top: wrapper.css( "top" ),
                    left: wrapper.css( "left" )
                } ).insertAfter( wrapper );
                wrapper.remove();
            }

            this.originalElement.css( "resize", this.originalResizeStyle );
            _destroy( this.originalElement );

            return this;
        },

        _setOption: function( key, value ) {
            this._super( key, value );

            switch ( key ) {
                case "handles":
                    this._removeHandles();
                    this._setupHandles();
                    break;
                default:
                    break;
            }
        },

        _setupHandles: function() {
            var o = this.options, handle, i, n, hname, axis, that = this;
            this.handles = o.handles ||
                ( !$( ".ui-resizable-handle", this.element ).length ?
                    "e,s,se" : {
                        n: ".ui-resizable-n",
                        e: ".ui-resizable-e",
                        s: ".ui-resizable-s",
                        w: ".ui-resizable-w",
                        se: ".ui-resizable-se",
                        sw: ".ui-resizable-sw",
                        ne: ".ui-resizable-ne",
                        nw: ".ui-resizable-nw"
                    } );

            this._handles = $();
            if ( this.handles.constructor === String ) {

                if ( this.handles === "all" ) {
                    this.handles = "n,e,s,w,se,sw,ne,nw";
                }

                n = this.handles.split( "," );
                this.handles = {};

                for ( i = 0; i < n.length; i++ ) {

                    handle = $.trim( n[ i ] );
                    hname = "ui-resizable-" + handle;
                    axis = $( "<div>" );
                    this._addClass( axis, "ui-resizable-handle " + hname );

                    axis.css( { zIndex: o.zIndex } );

                    this.handles[ handle ] = ".ui-resizable-" + handle;
                    this.element.append( axis );
                }

            }

            this._renderAxis = function( target ) {

                var i, axis, padPos, padWrapper;

                target = target || this.element;

                for ( i in this.handles ) {

                    if ( this.handles[ i ].constructor === String ) {
                        this.handles[ i ] = this.element.children( this.handles[ i ] ).first().show();
                    } else if ( this.handles[ i ].jquery || this.handles[ i ].nodeType ) {
                        this.handles[ i ] = $( this.handles[ i ] );
                        this._on( this.handles[ i ], { "mousedown": that._mouseDown } );
                    }

                    if ( this.elementIsWrapper &&
                        this.originalElement[ 0 ]
                            .nodeName
                            .match( /^(textarea|input|select|button)$/i ) ) {
                        axis = $( this.handles[ i ], this.element );

                        padWrapper = /sw|ne|nw|se|n|s/.test( i ) ?
                            axis.outerHeight() :
                            axis.outerWidth();

                        padPos = [ "padding",
                            /ne|nw|n/.test( i ) ? "Top" :
                                /se|sw|s/.test( i ) ? "Bottom" :
                                    /^e$/.test( i ) ? "Right" : "Left" ].join( "" );

                        target.css( padPos, padWrapper );

                        this._proportionallyResize();
                    }

                    this._handles = this._handles.add( this.handles[ i ] );
                }
            };

            // TODO: make renderAxis a prototype function
            this._renderAxis( this.element );

            this._handles = this._handles.add( this.element.find( ".ui-resizable-handle" ) );
            this._handles.disableSelection();

            this._handles.on( "mouseover", function() {
                if ( !that.resizing ) {
                    if ( this.className ) {
                        axis = this.className.match( /ui-resizable-(se|sw|ne|nw|n|e|s|w)/i );
                    }
                    that.axis = axis && axis[ 1 ] ? axis[ 1 ] : "se";
                }
            } );

            if ( o.autoHide ) {
                this._handles.hide();
                this._addClass( "ui-resizable-autohide" );
            }
        },

        _removeHandles: function() {
            this._handles.remove();
        },

        _mouseCapture: function( event ) {
            var i, handle,
                capture = false;

            for ( i in this.handles ) {
                handle = $( this.handles[ i ] )[ 0 ];
                if ( handle === event.target || $.contains( handle, event.target ) ) {
                    capture = true;
                }
            }

            return !this.options.disabled && capture;
        },

        _mouseStart: function( event ) {

            var curleft, curtop, cursor,
                o = this.options,
                el = this.element;

            this.resizing = true;

            this._renderProxy();

            curleft = this._num( this.helper.css( "left" ) );
            curtop = this._num( this.helper.css( "top" ) );

            if ( o.containment ) {
                curleft += $( o.containment ).scrollLeft() || 0;
                curtop += $( o.containment ).scrollTop() || 0;
            }

            this.offset = this.helper.offset();
            this.position = { left: curleft, top: curtop };

            this.size = this._helper ? {
                width: this.helper.width(),
                height: this.helper.height()
            } : {
                width: el.width(),
                height: el.height()
            };

            this.originalSize = this._helper ? {
                width: el.outerWidth(),
                height: el.outerHeight()
            } : {
                width: el.width(),
                height: el.height()
            };

            this.sizeDiff = {
                width: el.outerWidth() - el.width(),
                height: el.outerHeight() - el.height()
            };

            this.originalPosition = { left: curleft, top: curtop };
            this.originalMousePosition = { left: event.pageX, top: event.pageY };

            this.aspectRatio = ( typeof o.aspectRatio === "number" ) ?
                o.aspectRatio :
                ( ( this.originalSize.width / this.originalSize.height ) || 1 );

            cursor = $( ".ui-resizable-" + this.axis ).css( "cursor" );
            $( "body" ).css( "cursor", cursor === "auto" ? this.axis + "-resize" : cursor );

            this._addClass( "ui-resizable-resizing" );
            this._propagate( "start", event );
            return true;
        },

        _mouseDrag: function( event ) {

            var data, props,
                smp = this.originalMousePosition,
                a = this.axis,
                dx = ( event.pageX - smp.left ) || 0,
                dy = ( event.pageY - smp.top ) || 0,
                trigger = this._change[ a ];

            this._updatePrevProperties();

            if ( !trigger ) {
                return false;
            }

            data = trigger.apply( this, [ event, dx, dy ] );

            this._updateVirtualBoundaries( event.shiftKey );
            if ( this._aspectRatio || event.shiftKey ) {
                data = this._updateRatio( data, event );
            }

            data = this._respectSize( data, event );

            this._updateCache( data );

            this._propagate( "resize", event );

            props = this._applyChanges();

            if ( !this._helper && this._proportionallyResizeElements.length ) {
                this._proportionallyResize();
            }

            if ( !$.isEmptyObject( props ) ) {
                this._updatePrevProperties();
                this._trigger( "resize", event, this.ui() );
                this._applyChanges();
            }

            return false;
        },

        _mouseStop: function( event ) {

            this.resizing = false;
            var pr, ista, soffseth, soffsetw, s, left, top,
                o = this.options, that = this;

            if ( this._helper ) {

                pr = this._proportionallyResizeElements;
                ista = pr.length && ( /textarea/i ).test( pr[ 0 ].nodeName );
                soffseth = ista && this._hasScroll( pr[ 0 ], "left" ) ? 0 : that.sizeDiff.height;
                soffsetw = ista ? 0 : that.sizeDiff.width;

                s = {
                    width: ( that.helper.width()  - soffsetw ),
                    height: ( that.helper.height() - soffseth )
                };
                left = ( parseFloat( that.element.css( "left" ) ) +
                    ( that.position.left - that.originalPosition.left ) ) || null;
                top = ( parseFloat( that.element.css( "top" ) ) +
                    ( that.position.top - that.originalPosition.top ) ) || null;

                if ( !o.animate ) {
                    this.element.css( $.extend( s, { top: top, left: left } ) );
                }

                that.helper.height( that.size.height );
                that.helper.width( that.size.width );

                if ( this._helper && !o.animate ) {
                    this._proportionallyResize();
                }
            }

            $( "body" ).css( "cursor", "auto" );

            this._removeClass( "ui-resizable-resizing" );

            this._propagate( "stop", event );

            if ( this._helper ) {
                this.helper.remove();
            }

            return false;

        },

        _updatePrevProperties: function() {
            this.prevPosition = {
                top: this.position.top,
                left: this.position.left
            };
            this.prevSize = {
                width: this.size.width,
                height: this.size.height
            };
        },

        _applyChanges: function() {
            var props = {};

            if ( this.position.top !== this.prevPosition.top ) {
                props.top = this.position.top + "px";
            }
            if ( this.position.left !== this.prevPosition.left ) {
                props.left = this.position.left + "px";
            }
            if ( this.size.width !== this.prevSize.width ) {
                props.width = this.size.width + "px";
            }
            if ( this.size.height !== this.prevSize.height ) {
                props.height = this.size.height + "px";
            }

            this.helper.css( props );

            return props;
        },

        _updateVirtualBoundaries: function( forceAspectRatio ) {
            var pMinWidth, pMaxWidth, pMinHeight, pMaxHeight, b,
                o = this.options;

            b = {
                minWidth: this._isNumber( o.minWidth ) ? o.minWidth : 0,
                maxWidth: this._isNumber( o.maxWidth ) ? o.maxWidth : Infinity,
                minHeight: this._isNumber( o.minHeight ) ? o.minHeight : 0,
                maxHeight: this._isNumber( o.maxHeight ) ? o.maxHeight : Infinity
            };

            if ( this._aspectRatio || forceAspectRatio ) {
                pMinWidth = b.minHeight * this.aspectRatio;
                pMinHeight = b.minWidth / this.aspectRatio;
                pMaxWidth = b.maxHeight * this.aspectRatio;
                pMaxHeight = b.maxWidth / this.aspectRatio;

                if ( pMinWidth > b.minWidth ) {
                    b.minWidth = pMinWidth;
                }
                if ( pMinHeight > b.minHeight ) {
                    b.minHeight = pMinHeight;
                }
                if ( pMaxWidth < b.maxWidth ) {
                    b.maxWidth = pMaxWidth;
                }
                if ( pMaxHeight < b.maxHeight ) {
                    b.maxHeight = pMaxHeight;
                }
            }
            this._vBoundaries = b;
        },

        _updateCache: function( data ) {
            this.offset = this.helper.offset();
            if ( this._isNumber( data.left ) ) {
                this.position.left = data.left;
            }
            if ( this._isNumber( data.top ) ) {
                this.position.top = data.top;
            }
            if ( this._isNumber( data.height ) ) {
                this.size.height = data.height;
            }
            if ( this._isNumber( data.width ) ) {
                this.size.width = data.width;
            }
        },

        _updateRatio: function( data ) {

            var cpos = this.position,
                csize = this.size,
                a = this.axis;

            if ( this._isNumber( data.height ) ) {
                data.width = ( data.height * this.aspectRatio );
            } else if ( this._isNumber( data.width ) ) {
                data.height = ( data.width / this.aspectRatio );
            }

            if ( a === "sw" ) {
                data.left = cpos.left + ( csize.width - data.width );
                data.top = null;
            }
            if ( a === "nw" ) {
                data.top = cpos.top + ( csize.height - data.height );
                data.left = cpos.left + ( csize.width - data.width );
            }

            return data;
        },

        _respectSize: function( data ) {

            var o = this._vBoundaries,
                a = this.axis,
                ismaxw = this._isNumber( data.width ) && o.maxWidth && ( o.maxWidth < data.width ),
                ismaxh = this._isNumber( data.height ) && o.maxHeight && ( o.maxHeight < data.height ),
                isminw = this._isNumber( data.width ) && o.minWidth && ( o.minWidth > data.width ),
                isminh = this._isNumber( data.height ) && o.minHeight && ( o.minHeight > data.height ),
                dw = this.originalPosition.left + this.originalSize.width,
                dh = this.originalPosition.top + this.originalSize.height,
                cw = /sw|nw|w/.test( a ), ch = /nw|ne|n/.test( a );
            if ( isminw ) {
                data.width = o.minWidth;
            }
            if ( isminh ) {
                data.height = o.minHeight;
            }
            if ( ismaxw ) {
                data.width = o.maxWidth;
            }
            if ( ismaxh ) {
                data.height = o.maxHeight;
            }

            if ( isminw && cw ) {
                data.left = dw - o.minWidth;
            }
            if ( ismaxw && cw ) {
                data.left = dw - o.maxWidth;
            }
            if ( isminh && ch ) {
                data.top = dh - o.minHeight;
            }
            if ( ismaxh && ch ) {
                data.top = dh - o.maxHeight;
            }

            // Fixing jump error on top/left - bug #2330
            if ( !data.width && !data.height && !data.left && data.top ) {
                data.top = null;
            } else if ( !data.width && !data.height && !data.top && data.left ) {
                data.left = null;
            }

            return data;
        },

        _getPaddingPlusBorderDimensions: function( element ) {
            var i = 0,
                widths = [],
                borders = [
                    element.css( "borderTopWidth" ),
                    element.css( "borderRightWidth" ),
                    element.css( "borderBottomWidth" ),
                    element.css( "borderLeftWidth" )
                ],
                paddings = [
                    element.css( "paddingTop" ),
                    element.css( "paddingRight" ),
                    element.css( "paddingBottom" ),
                    element.css( "paddingLeft" )
                ];

            for ( ; i < 4; i++ ) {
                widths[ i ] = ( parseFloat( borders[ i ] ) || 0 );
                widths[ i ] += ( parseFloat( paddings[ i ] ) || 0 );
            }

            return {
                height: widths[ 0 ] + widths[ 2 ],
                width: widths[ 1 ] + widths[ 3 ]
            };
        },

        _proportionallyResize: function() {

            if ( !this._proportionallyResizeElements.length ) {
                return;
            }

            var prel,
                i = 0,
                element = this.helper || this.element;

            for ( ; i < this._proportionallyResizeElements.length; i++ ) {

                prel = this._proportionallyResizeElements[ i ];

                // TODO: Seems like a bug to cache this.outerDimensions
                // considering that we are in a loop.
                if ( !this.outerDimensions ) {
                    this.outerDimensions = this._getPaddingPlusBorderDimensions( prel );
                }

                prel.css( {
                    height: ( element.height() - this.outerDimensions.height ) || 0,
                    width: ( element.width() - this.outerDimensions.width ) || 0
                } );

            }

        },

        _renderProxy: function() {

            var el = this.element, o = this.options;
            this.elementOffset = el.offset();

            if ( this._helper ) {

                this.helper = this.helper || $( "<div style='overflow:hidden;'></div>" );

                this._addClass( this.helper, this._helper );
                this.helper.css( {
                    width: this.element.outerWidth(),
                    height: this.element.outerHeight(),
                    position: "absolute",
                    left: this.elementOffset.left + "px",
                    top: this.elementOffset.top + "px",
                    zIndex: ++o.zIndex //TODO: Don't modify option
                } );

                this.helper
                    .appendTo( "body" )
                    .disableSelection();

            } else {
                this.helper = this.element;
            }

        },

        _change: {
            e: function( event, dx ) {
                return { width: this.originalSize.width + dx };
            },
            w: function( event, dx ) {
                var cs = this.originalSize, sp = this.originalPosition;
                return { left: sp.left + dx, width: cs.width - dx };
            },
            n: function( event, dx, dy ) {
                var cs = this.originalSize, sp = this.originalPosition;
                return { top: sp.top + dy, height: cs.height - dy };
            },
            s: function( event, dx, dy ) {
                return { height: this.originalSize.height + dy };
            },
            se: function( event, dx, dy ) {
                return $.extend( this._change.s.apply( this, arguments ),
                    this._change.e.apply( this, [ event, dx, dy ] ) );
            },
            sw: function( event, dx, dy ) {
                return $.extend( this._change.s.apply( this, arguments ),
                    this._change.w.apply( this, [ event, dx, dy ] ) );
            },
            ne: function( event, dx, dy ) {
                return $.extend( this._change.n.apply( this, arguments ),
                    this._change.e.apply( this, [ event, dx, dy ] ) );
            },
            nw: function( event, dx, dy ) {
                return $.extend( this._change.n.apply( this, arguments ),
                    this._change.w.apply( this, [ event, dx, dy ] ) );
            }
        },

        _propagate: function( n, event ) {
            $.ui.plugin.call( this, n, [ event, this.ui() ] );
            ( n !== "resize" && this._trigger( n, event, this.ui() ) );
        },

        plugins: {},

        ui: function() {
            return {
                originalElement: this.originalElement,
                element: this.element,
                helper: this.helper,
                position: this.position,
                size: this.size,
                originalSize: this.originalSize,
                originalPosition: this.originalPosition
            };
        }

    } );

    /*
     * Resizable Extensions
     */

    $.ui.plugin.add( "resizable", "animate", {

        stop: function( event ) {
            var that = $( this ).resizable( "instance" ),
                o = that.options,
                pr = that._proportionallyResizeElements,
                ista = pr.length && ( /textarea/i ).test( pr[ 0 ].nodeName ),
                soffseth = ista && that._hasScroll( pr[ 0 ], "left" ) ? 0 : that.sizeDiff.height,
                soffsetw = ista ? 0 : that.sizeDiff.width,
                style = {
                    width: ( that.size.width - soffsetw ),
                    height: ( that.size.height - soffseth )
                },
                left = ( parseFloat( that.element.css( "left" ) ) +
                    ( that.position.left - that.originalPosition.left ) ) || null,
                top = ( parseFloat( that.element.css( "top" ) ) +
                    ( that.position.top - that.originalPosition.top ) ) || null;

            that.element.animate(
                $.extend( style, top && left ? { top: top, left: left } : {} ), {
                    duration: o.animateDuration,
                    easing: o.animateEasing,
                    step: function() {

                        var data = {
                            width: parseFloat( that.element.css( "width" ) ),
                            height: parseFloat( that.element.css( "height" ) ),
                            top: parseFloat( that.element.css( "top" ) ),
                            left: parseFloat( that.element.css( "left" ) )
                        };

                        if ( pr && pr.length ) {
                            $( pr[ 0 ] ).css( { width: data.width, height: data.height } );
                        }

                        // Propagating resize, and updating values for each animation step
                        that._updateCache( data );
                        that._propagate( "resize", event );

                    }
                }
            );
        }

    } );

    $.ui.plugin.add( "resizable", "containment", {

        start: function() {
            var element, p, co, ch, cw, width, height,
                that = $( this ).resizable( "instance" ),
                o = that.options,
                el = that.element,
                oc = o.containment,
                ce = ( oc instanceof $ ) ?
                    oc.get( 0 ) :
                    ( /parent/.test( oc ) ) ? el.parent().get( 0 ) : oc;

            if ( !ce ) {
                return;
            }

            that.containerElement = $( ce );

            if ( /document/.test( oc ) || oc === document ) {
                that.containerOffset = {
                    left: 0,
                    top: 0
                };
                that.containerPosition = {
                    left: 0,
                    top: 0
                };

                that.parentData = {
                    element: $( document ),
                    left: 0,
                    top: 0,
                    width: $( document ).width(),
                    height: $( document ).height() || document.body.parentNode.scrollHeight
                };
            } else {
                element = $( ce );
                p = [];
                $( [ "Top", "Right", "Left", "Bottom" ] ).each( function( i, name ) {
                    p[ i ] = that._num( element.css( "padding" + name ) );
                } );

                that.containerOffset = element.offset();
                that.containerPosition = element.position();
                that.containerSize = {
                    height: ( element.innerHeight() - p[ 3 ] ),
                    width: ( element.innerWidth() - p[ 1 ] )
                };

                co = that.containerOffset;
                ch = that.containerSize.height;
                cw = that.containerSize.width;
                width = ( that._hasScroll ( ce, "left" ) ? ce.scrollWidth : cw );
                height = ( that._hasScroll ( ce ) ? ce.scrollHeight : ch ) ;

                that.parentData = {
                    element: ce,
                    left: co.left,
                    top: co.top,
                    width: width,
                    height: height
                };
            }
        },

        resize: function( event ) {
            var woset, hoset, isParent, isOffsetRelative,
                that = $( this ).resizable( "instance" ),
                o = that.options,
                co = that.containerOffset,
                cp = that.position,
                pRatio = that._aspectRatio || event.shiftKey,
                cop = {
                    top: 0,
                    left: 0
                },
                ce = that.containerElement,
                continueResize = true;

            if ( ce[ 0 ] !== document && ( /static/ ).test( ce.css( "position" ) ) ) {
                cop = co;
            }

            if ( cp.left < ( that._helper ? co.left : 0 ) ) {
                that.size.width = that.size.width +
                    ( that._helper ?
                        ( that.position.left - co.left ) :
                        ( that.position.left - cop.left ) );

                if ( pRatio ) {
                    that.size.height = that.size.width / that.aspectRatio;
                    continueResize = false;
                }
                that.position.left = o.helper ? co.left : 0;
            }

            if ( cp.top < ( that._helper ? co.top : 0 ) ) {
                that.size.height = that.size.height +
                    ( that._helper ?
                        ( that.position.top - co.top ) :
                        that.position.top );

                if ( pRatio ) {
                    that.size.width = that.size.height * that.aspectRatio;
                    continueResize = false;
                }
                that.position.top = that._helper ? co.top : 0;
            }

            isParent = that.containerElement.get( 0 ) === that.element.parent().get( 0 );
            isOffsetRelative = /relative|absolute/.test( that.containerElement.css( "position" ) );

            if ( isParent && isOffsetRelative ) {
                that.offset.left = that.parentData.left + that.position.left;
                that.offset.top = that.parentData.top + that.position.top;
            } else {
                that.offset.left = that.element.offset().left;
                that.offset.top = that.element.offset().top;
            }

            woset = Math.abs( that.sizeDiff.width +
                ( that._helper ?
                    that.offset.left - cop.left :
                    ( that.offset.left - co.left ) ) );

            hoset = Math.abs( that.sizeDiff.height +
                ( that._helper ?
                    that.offset.top - cop.top :
                    ( that.offset.top - co.top ) ) );

            if ( woset + that.size.width >= that.parentData.width ) {
                that.size.width = that.parentData.width - woset;
                if ( pRatio ) {
                    that.size.height = that.size.width / that.aspectRatio;
                    continueResize = false;
                }
            }

            if ( hoset + that.size.height >= that.parentData.height ) {
                that.size.height = that.parentData.height - hoset;
                if ( pRatio ) {
                    that.size.width = that.size.height * that.aspectRatio;
                    continueResize = false;
                }
            }

            if ( !continueResize ) {
                that.position.left = that.prevPosition.left;
                that.position.top = that.prevPosition.top;
                that.size.width = that.prevSize.width;
                that.size.height = that.prevSize.height;
            }
        },

        stop: function() {
            var that = $( this ).resizable( "instance" ),
                o = that.options,
                co = that.containerOffset,
                cop = that.containerPosition,
                ce = that.containerElement,
                helper = $( that.helper ),
                ho = helper.offset(),
                w = helper.outerWidth() - that.sizeDiff.width,
                h = helper.outerHeight() - that.sizeDiff.height;

            if ( that._helper && !o.animate && ( /relative/ ).test( ce.css( "position" ) ) ) {
                $( this ).css( {
                    left: ho.left - cop.left - co.left,
                    width: w,
                    height: h
                } );
            }

            if ( that._helper && !o.animate && ( /static/ ).test( ce.css( "position" ) ) ) {
                $( this ).css( {
                    left: ho.left - cop.left - co.left,
                    width: w,
                    height: h
                } );
            }
        }
    } );

    $.ui.plugin.add( "resizable", "alsoResize", {

        start: function() {
            var that = $( this ).resizable( "instance" ),
                o = that.options;

            $( o.alsoResize ).each( function() {
                var el = $( this );
                el.data( "ui-resizable-alsoresize", {
                    width: parseFloat( el.width() ), height: parseFloat( el.height() ),
                    left: parseFloat( el.css( "left" ) ), top: parseFloat( el.css( "top" ) )
                } );
            } );
        },

        resize: function( event, ui ) {
            var that = $( this ).resizable( "instance" ),
                o = that.options,
                os = that.originalSize,
                op = that.originalPosition,
                delta = {
                    height: ( that.size.height - os.height ) || 0,
                    width: ( that.size.width - os.width ) || 0,
                    top: ( that.position.top - op.top ) || 0,
                    left: ( that.position.left - op.left ) || 0
                };

            $( o.alsoResize ).each( function() {
                var el = $( this ), start = $( this ).data( "ui-resizable-alsoresize" ), style = {},
                    css = el.parents( ui.originalElement[ 0 ] ).length ?
                        [ "width", "height" ] :
                        [ "width", "height", "top", "left" ];

                $.each( css, function( i, prop ) {
                    var sum = ( start[ prop ] || 0 ) + ( delta[ prop ] || 0 );
                    if ( sum && sum >= 0 ) {
                        style[ prop ] = sum || null;
                    }
                } );

                el.css( style );
            } );
        },

        stop: function() {
            $( this ).removeData( "ui-resizable-alsoresize" );
        }
    } );

    $.ui.plugin.add( "resizable", "ghost", {

        start: function() {

            var that = $( this ).resizable( "instance" ), cs = that.size;

            that.ghost = that.originalElement.clone();
            that.ghost.css( {
                opacity: 0.25,
                display: "block",
                position: "relative",
                height: cs.height,
                width: cs.width,
                margin: 0,
                left: 0,
                top: 0
            } );

            that._addClass( that.ghost, "ui-resizable-ghost" );

            // DEPRECATED
            // TODO: remove after 1.12
            if ( $.uiBackCompat !== false && typeof that.options.ghost === "string" ) {

                // Ghost option
                that.ghost.addClass( this.options.ghost );
            }

            that.ghost.appendTo( that.helper );

        },

        resize: function() {
            var that = $( this ).resizable( "instance" );
            if ( that.ghost ) {
                that.ghost.css( {
                    position: "relative",
                    height: that.size.height,
                    width: that.size.width
                } );
            }
        },

        stop: function() {
            var that = $( this ).resizable( "instance" );
            if ( that.ghost && that.helper ) {
                that.helper.get( 0 ).removeChild( that.ghost.get( 0 ) );
            }
        }

    } );

    $.ui.plugin.add( "resizable", "grid", {

        resize: function() {
            var outerDimensions,
                that = $( this ).resizable( "instance" ),
                o = that.options,
                cs = that.size,
                os = that.originalSize,
                op = that.originalPosition,
                a = that.axis,
                grid = typeof o.grid === "number" ? [ o.grid, o.grid ] : o.grid,
                gridX = ( grid[ 0 ] || 1 ),
                gridY = ( grid[ 1 ] || 1 ),
                ox = Math.round( ( cs.width - os.width ) / gridX ) * gridX,
                oy = Math.round( ( cs.height - os.height ) / gridY ) * gridY,
                newWidth = os.width + ox,
                newHeight = os.height + oy,
                isMaxWidth = o.maxWidth && ( o.maxWidth < newWidth ),
                isMaxHeight = o.maxHeight && ( o.maxHeight < newHeight ),
                isMinWidth = o.minWidth && ( o.minWidth > newWidth ),
                isMinHeight = o.minHeight && ( o.minHeight > newHeight );

            o.grid = grid;

            if ( isMinWidth ) {
                newWidth += gridX;
            }
            if ( isMinHeight ) {
                newHeight += gridY;
            }
            if ( isMaxWidth ) {
                newWidth -= gridX;
            }
            if ( isMaxHeight ) {
                newHeight -= gridY;
            }

            if ( /^(se|s|e)$/.test( a ) ) {
                that.size.width = newWidth;
                that.size.height = newHeight;
            } else if ( /^(ne)$/.test( a ) ) {
                that.size.width = newWidth;
                that.size.height = newHeight;
                that.position.top = op.top - oy;
            } else if ( /^(sw)$/.test( a ) ) {
                that.size.width = newWidth;
                that.size.height = newHeight;
                that.position.left = op.left - ox;
            } else {
                if ( newHeight - gridY <= 0 || newWidth - gridX <= 0 ) {
                    outerDimensions = that._getPaddingPlusBorderDimensions( this );
                }

                if ( newHeight - gridY > 0 ) {
                    that.size.height = newHeight;
                    that.position.top = op.top - oy;
                } else {
                    newHeight = gridY - outerDimensions.height;
                    that.size.height = newHeight;
                    that.position.top = op.top + os.height - newHeight;
                }
                if ( newWidth - gridX > 0 ) {
                    that.size.width = newWidth;
                    that.position.left = op.left - ox;
                } else {
                    newWidth = gridX - outerDimensions.width;
                    that.size.width = newWidth;
                    that.position.left = op.left + os.width - newWidth;
                }
            }
        }

    } );

    var widgetsResizable = $.ui.resizable;


    /*!
     * jQuery UI Accordion 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Accordion
//>>group: Widgets
// jscs:disable maximumLineLength
//>>description: Displays collapsible content panels for presenting information in a limited amount of space.
// jscs:enable maximumLineLength
//>>docs: http://api.jqueryui.com/accordion/
//>>demos: http://jqueryui.com/accordion/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/accordion.css
//>>css.theme: ../../themes/base/theme.css



    var widgetsAccordion = $.widget( "ui.accordion", {
        version: "1.12.1",
        options: {
            active: 0,
            animate: {},
            classes: {
                "ui-accordion-header": "ui-corner-top",
                "ui-accordion-header-collapsed": "ui-corner-all",
                "ui-accordion-content": "ui-corner-bottom"
            },
            collapsible: false,
            event: "click",
            header: "> li > :first-child, > :not(li):even",
            heightStyle: "auto",
            icons: {
                activeHeader: "ui-icon-triangle-1-s",
                header: "ui-icon-triangle-1-e"
            },

            // Callbacks
            activate: null,
            beforeActivate: null
        },

        hideProps: {
            borderTopWidth: "hide",
            borderBottomWidth: "hide",
            paddingTop: "hide",
            paddingBottom: "hide",
            height: "hide"
        },

        showProps: {
            borderTopWidth: "show",
            borderBottomWidth: "show",
            paddingTop: "show",
            paddingBottom: "show",
            height: "show"
        },

        _create: function() {
            var options = this.options;

            this.prevShow = this.prevHide = $();
            this._addClass( "ui-accordion", "ui-widget ui-helper-reset" );
            this.element.attr( "role", "tablist" );

            // Don't allow collapsible: false and active: false / null
            if ( !options.collapsible && ( options.active === false || options.active == null ) ) {
                options.active = 0;
            }

            this._processPanels();

            // handle negative values
            if ( options.active < 0 ) {
                options.active += this.headers.length;
            }
            this._refresh();
        },

        _getCreateEventData: function() {
            return {
                header: this.active,
                panel: !this.active.length ? $() : this.active.next()
            };
        },

        _createIcons: function() {
            var icon, children,
                icons = this.options.icons;

            if ( icons ) {
                icon = $( "<span>" );
                this._addClass( icon, "ui-accordion-header-icon", "ui-icon " + icons.header );
                icon.prependTo( this.headers );
                children = this.active.children( ".ui-accordion-header-icon" );
                this._removeClass( children, icons.header )
                    ._addClass( children, null, icons.activeHeader )
                    ._addClass( this.headers, "ui-accordion-icons" );
            }
        },

        _destroyIcons: function() {
            this._removeClass( this.headers, "ui-accordion-icons" );
            this.headers.children( ".ui-accordion-header-icon" ).remove();
        },

        _destroy: function() {
            var contents;

            // Clean up main element
            this.element.removeAttr( "role" );

            // Clean up headers
            this.headers
                .removeAttr( "role aria-expanded aria-selected aria-controls tabIndex" )
                .removeUniqueId();

            this._destroyIcons();

            // Clean up content panels
            contents = this.headers.next()
                .css( "display", "" )
                .removeAttr( "role aria-hidden aria-labelledby" )
                .removeUniqueId();

            if ( this.options.heightStyle !== "content" ) {
                contents.css( "height", "" );
            }
        },

        _setOption: function( key, value ) {
            if ( key === "active" ) {

                // _activate() will handle invalid values and update this.options
                this._activate( value );
                return;
            }

            if ( key === "event" ) {
                if ( this.options.event ) {
                    this._off( this.headers, this.options.event );
                }
                this._setupEvents( value );
            }

            this._super( key, value );

            // Setting collapsible: false while collapsed; open first panel
            if ( key === "collapsible" && !value && this.options.active === false ) {
                this._activate( 0 );
            }

            if ( key === "icons" ) {
                this._destroyIcons();
                if ( value ) {
                    this._createIcons();
                }
            }
        },

        _setOptionDisabled: function( value ) {
            this._super( value );

            this.element.attr( "aria-disabled", value );

            // Support: IE8 Only
            // #5332 / #6059 - opacity doesn't cascade to positioned elements in IE
            // so we need to add the disabled class to the headers and panels
            this._toggleClass( null, "ui-state-disabled", !!value );
            this._toggleClass( this.headers.add( this.headers.next() ), null, "ui-state-disabled",
                !!value );
        },

        _keydown: function( event ) {
            if ( event.altKey || event.ctrlKey ) {
                return;
            }

            var keyCode = $.ui.keyCode,
                length = this.headers.length,
                currentIndex = this.headers.index( event.target ),
                toFocus = false;

            switch ( event.keyCode ) {
                case keyCode.RIGHT:
                case keyCode.DOWN:
                    toFocus = this.headers[ ( currentIndex + 1 ) % length ];
                    break;
                case keyCode.LEFT:
                case keyCode.UP:
                    toFocus = this.headers[ ( currentIndex - 1 + length ) % length ];
                    break;
                case keyCode.SPACE:
                case keyCode.ENTER:
                    this._eventHandler( event );
                    break;
                case keyCode.HOME:
                    toFocus = this.headers[ 0 ];
                    break;
                case keyCode.END:
                    toFocus = this.headers[ length - 1 ];
                    break;
            }

            if ( toFocus ) {
                $( event.target ).attr( "tabIndex", -1 );
                $( toFocus ).attr( "tabIndex", 0 );
                $( toFocus ).trigger( "focus" );
                event.preventDefault();
            }
        },

        _panelKeyDown: function( event ) {
            if ( event.keyCode === $.ui.keyCode.UP && event.ctrlKey ) {
                $( event.currentTarget ).prev().trigger( "focus" );
            }
        },

        refresh: function() {
            var options = this.options;
            this._processPanels();

            // Was collapsed or no panel
            if ( ( options.active === false && options.collapsible === true ) ||
                !this.headers.length ) {
                options.active = false;
                this.active = $();

                // active false only when collapsible is true
            } else if ( options.active === false ) {
                this._activate( 0 );

                // was active, but active panel is gone
            } else if ( this.active.length && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {

                // all remaining panel are disabled
                if ( this.headers.length === this.headers.find( ".ui-state-disabled" ).length ) {
                    options.active = false;
                    this.active = $();

                    // activate previous panel
                } else {
                    this._activate( Math.max( 0, options.active - 1 ) );
                }

                // was active, active panel still exists
            } else {

                // make sure active index is correct
                options.active = this.headers.index( this.active );
            }

            this._destroyIcons();

            this._refresh();
        },

        _processPanels: function() {
            var prevHeaders = this.headers,
                prevPanels = this.panels;

            this.headers = this.element.find( this.options.header );
            this._addClass( this.headers, "ui-accordion-header ui-accordion-header-collapsed",
                "ui-state-default" );

            this.panels = this.headers.next().filter( ":not(.ui-accordion-content-active)" ).hide();
            this._addClass( this.panels, "ui-accordion-content", "ui-helper-reset ui-widget-content" );

            // Avoid memory leaks (#10056)
            if ( prevPanels ) {
                this._off( prevHeaders.not( this.headers ) );
                this._off( prevPanels.not( this.panels ) );
            }
        },

        _refresh: function() {
            var maxHeight,
                options = this.options,
                heightStyle = options.heightStyle,
                parent = this.element.parent();

            this.active = this._findActive( options.active );
            this._addClass( this.active, "ui-accordion-header-active", "ui-state-active" )
                ._removeClass( this.active, "ui-accordion-header-collapsed" );
            this._addClass( this.active.next(), "ui-accordion-content-active" );
            this.active.next().show();

            this.headers
                .attr( "role", "tab" )
                .each( function() {
                    var header = $( this ),
                        headerId = header.uniqueId().attr( "id" ),
                        panel = header.next(),
                        panelId = panel.uniqueId().attr( "id" );
                    header.attr( "aria-controls", panelId );
                    panel.attr( "aria-labelledby", headerId );
                } )
                .next()
                .attr( "role", "tabpanel" );

            this.headers
                .not( this.active )
                .attr( {
                    "aria-selected": "false",
                    "aria-expanded": "false",
                    tabIndex: -1
                } )
                .next()
                .attr( {
                    "aria-hidden": "true"
                } )
                .hide();

            // Make sure at least one header is in the tab order
            if ( !this.active.length ) {
                this.headers.eq( 0 ).attr( "tabIndex", 0 );
            } else {
                this.active.attr( {
                    "aria-selected": "true",
                    "aria-expanded": "true",
                    tabIndex: 0
                } )
                    .next()
                    .attr( {
                        "aria-hidden": "false"
                    } );
            }

            this._createIcons();

            this._setupEvents( options.event );

            if ( heightStyle === "fill" ) {
                maxHeight = parent.height();
                this.element.siblings( ":visible" ).each( function() {
                    var elem = $( this ),
                        position = elem.css( "position" );

                    if ( position === "absolute" || position === "fixed" ) {
                        return;
                    }
                    maxHeight -= elem.outerHeight( true );
                } );

                this.headers.each( function() {
                    maxHeight -= $( this ).outerHeight( true );
                } );

                this.headers.next()
                    .each( function() {
                        $( this ).height( Math.max( 0, maxHeight -
                            $( this ).innerHeight() + $( this ).height() ) );
                    } )
                    .css( "overflow", "auto" );
            } else if ( heightStyle === "auto" ) {
                maxHeight = 0;
                this.headers.next()
                    .each( function() {
                        var isVisible = $( this ).is( ":visible" );
                        if ( !isVisible ) {
                            $( this ).show();
                        }
                        maxHeight = Math.max( maxHeight, $( this ).css( "height", "" ).height() );
                        if ( !isVisible ) {
                            $( this ).hide();
                        }
                    } )
                    .height( maxHeight );
            }
        },

        _activate: function( index ) {
            var active = this._findActive( index )[ 0 ];

            // Trying to activate the already active panel
            if ( active === this.active[ 0 ] ) {
                return;
            }

            // Trying to collapse, simulate a click on the currently active header
            active = active || this.active[ 0 ];

            this._eventHandler( {
                target: active,
                currentTarget: active,
                preventDefault: $.noop
            } );
        },

        _findActive: function( selector ) {
            return typeof selector === "number" ? this.headers.eq( selector ) : $();
        },

        _setupEvents: function( event ) {
            var events = {
                keydown: "_keydown"
            };
            if ( event ) {
                $.each( event.split( " " ), function( index, eventName ) {
                    events[ eventName ] = "_eventHandler";
                } );
            }

            this._off( this.headers.add( this.headers.next() ) );
            this._on( this.headers, events );
            this._on( this.headers.next(), { keydown: "_panelKeyDown" } );
            this._hoverable( this.headers );
            this._focusable( this.headers );
        },

        _eventHandler: function( event ) {
            var activeChildren, clickedChildren,
                options = this.options,
                active = this.active,
                clicked = $( event.currentTarget ),
                clickedIsActive = clicked[ 0 ] === active[ 0 ],
                collapsing = clickedIsActive && options.collapsible,
                toShow = collapsing ? $() : clicked.next(),
                toHide = active.next(),
                eventData = {
                    oldHeader: active,
                    oldPanel: toHide,
                    newHeader: collapsing ? $() : clicked,
                    newPanel: toShow
                };

            event.preventDefault();

            if (

                // click on active header, but not collapsible
            ( clickedIsActive && !options.collapsible ) ||

            // allow canceling activation
            ( this._trigger( "beforeActivate", event, eventData ) === false ) ) {
                return;
            }

            options.active = collapsing ? false : this.headers.index( clicked );

            // When the call to ._toggle() comes after the class changes
            // it causes a very odd bug in IE 8 (see #6720)
            this.active = clickedIsActive ? $() : clicked;
            this._toggle( eventData );

            // Switch classes
            // corner classes on the previously active header stay after the animation
            this._removeClass( active, "ui-accordion-header-active", "ui-state-active" );
            if ( options.icons ) {
                activeChildren = active.children( ".ui-accordion-header-icon" );
                this._removeClass( activeChildren, null, options.icons.activeHeader )
                    ._addClass( activeChildren, null, options.icons.header );
            }

            if ( !clickedIsActive ) {
                this._removeClass( clicked, "ui-accordion-header-collapsed" )
                    ._addClass( clicked, "ui-accordion-header-active", "ui-state-active" );
                if ( options.icons ) {
                    clickedChildren = clicked.children( ".ui-accordion-header-icon" );
                    this._removeClass( clickedChildren, null, options.icons.header )
                        ._addClass( clickedChildren, null, options.icons.activeHeader );
                }

                this._addClass( clicked.next(), "ui-accordion-content-active" );
            }
        },

        _toggle: function( data ) {
            var toShow = data.newPanel,
                toHide = this.prevShow.length ? this.prevShow : data.oldPanel;

            // Handle activating a panel during the animation for another activation
            this.prevShow.add( this.prevHide ).stop( true, true );
            this.prevShow = toShow;
            this.prevHide = toHide;

            if ( this.options.animate ) {
                this._animate( toShow, toHide, data );
            } else {
                toHide.hide();
                toShow.show();
                this._toggleComplete( data );
            }

            toHide.attr( {
                "aria-hidden": "true"
            } );
            toHide.prev().attr( {
                "aria-selected": "false",
                "aria-expanded": "false"
            } );

            // if we're switching panels, remove the old header from the tab order
            // if we're opening from collapsed state, remove the previous header from the tab order
            // if we're collapsing, then keep the collapsing header in the tab order
            if ( toShow.length && toHide.length ) {
                toHide.prev().attr( {
                    "tabIndex": -1,
                    "aria-expanded": "false"
                } );
            } else if ( toShow.length ) {
                this.headers.filter( function() {
                    return parseInt( $( this ).attr( "tabIndex" ), 10 ) === 0;
                } )
                    .attr( "tabIndex", -1 );
            }

            toShow
                .attr( "aria-hidden", "false" )
                .prev()
                .attr( {
                    "aria-selected": "true",
                    "aria-expanded": "true",
                    tabIndex: 0
                } );
        },

        _animate: function( toShow, toHide, data ) {
            var total, easing, duration,
                that = this,
                adjust = 0,
                boxSizing = toShow.css( "box-sizing" ),
                down = toShow.length &&
                    ( !toHide.length || ( toShow.index() < toHide.index() ) ),
                animate = this.options.animate || {},
                options = down && animate.down || animate,
                complete = function() {
                    that._toggleComplete( data );
                };

            if ( typeof options === "number" ) {
                duration = options;
            }
            if ( typeof options === "string" ) {
                easing = options;
            }

            // fall back from options to animation in case of partial down settings
            easing = easing || options.easing || animate.easing;
            duration = duration || options.duration || animate.duration;

            if ( !toHide.length ) {
                return toShow.animate( this.showProps, duration, easing, complete );
            }
            if ( !toShow.length ) {
                return toHide.animate( this.hideProps, duration, easing, complete );
            }

            total = toShow.show().outerHeight();
            toHide.animate( this.hideProps, {
                duration: duration,
                easing: easing,
                step: function( now, fx ) {
                    fx.now = Math.round( now );
                }
            } );
            toShow
                .hide()
                .animate( this.showProps, {
                    duration: duration,
                    easing: easing,
                    complete: complete,
                    step: function( now, fx ) {
                        fx.now = Math.round( now );
                        if ( fx.prop !== "height" ) {
                            if ( boxSizing === "content-box" ) {
                                adjust += fx.now;
                            }
                        } else if ( that.options.heightStyle !== "content" ) {
                            fx.now = Math.round( total - toHide.outerHeight() - adjust );
                            adjust = 0;
                        }
                    }
                } );
        },

        _toggleComplete: function( data ) {
            var toHide = data.oldPanel,
                prev = toHide.prev();

            this._removeClass( toHide, "ui-accordion-content-active" );
            this._removeClass( prev, "ui-accordion-header-active" )
                ._addClass( prev, "ui-accordion-header-collapsed" );

            // Work around for rendering bug in IE (#5421)
            if ( toHide.length ) {
                toHide.parent()[ 0 ].className = toHide.parent()[ 0 ].className;
            }
            this._trigger( "activate", null, data );
        }
    } );


    /*!
     * jQuery UI Menu 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Menu
//>>group: Widgets
//>>description: Creates nestable menus.
//>>docs: http://api.jqueryui.com/menu/
//>>demos: http://jqueryui.com/menu/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/menu.css
//>>css.theme: ../../themes/base/theme.css



    var widgetsMenu = $.widget( "ui.menu", {
        version: "1.12.1",
        defaultElement: "<ul>",
        delay: 300,
        options: {
            icons: {
                submenu: "ui-icon-caret-1-e"
            },
            items: "> *",
            menus: "ul",
            position: {
                my: "left top",
                at: "right top"
            },
            role: "menu",

            // Callbacks
            blur: null,
            focus: null,
            select: null
        },

        _create: function() {
            this.activeMenu = this.element;

            // Flag used to prevent firing of the click handler
            // as the event bubbles up through nested menus
            this.mouseHandled = false;
            this.element
                .uniqueId()
                .attr( {
                    role: this.options.role,
                    tabIndex: 0
                } );

            this._addClass( "ui-menu", "ui-widget ui-widget-content" );
            this._on( {

                // Prevent focus from sticking to links inside menu after clicking
                // them (focus should always stay on UL during navigation).
                "mousedown .ui-menu-item": function( event ) {
                    event.preventDefault();
                },
                "click .ui-menu-item": function( event ) {
                    var target = $( event.target );
                    var active = $( $.ui.safeActiveElement( this.document[ 0 ] ) );
                    if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {
                        this.select( event );

                        // Only set the mouseHandled flag if the event will bubble, see #9469.
                        if ( !event.isPropagationStopped() ) {
                            this.mouseHandled = true;
                        }

                        // Open submenu on click
                        if ( target.has( ".ui-menu" ).length ) {
                            this.expand( event );
                        } else if ( !this.element.is( ":focus" ) &&
                            active.closest( ".ui-menu" ).length ) {

                            // Redirect focus to the menu
                            this.element.trigger( "focus", [ true ] );

                            // If the active item is on the top level, let it stay active.
                            // Otherwise, blur the active item since it is no longer visible.
                            if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
                                clearTimeout( this.timer );
                            }
                        }
                    }
                },
                "mouseenter .ui-menu-item": function( event ) {

                    // Ignore mouse events while typeahead is active, see #10458.
                    // Prevents focusing the wrong item when typeahead causes a scroll while the mouse
                    // is over an item in the menu
                    if ( this.previousFilter ) {
                        return;
                    }

                    var actualTarget = $( event.target ).closest( ".ui-menu-item" ),
                        target = $( event.currentTarget );

                    // Ignore bubbled events on parent items, see #11641
                    if ( actualTarget[ 0 ] !== target[ 0 ] ) {
                        return;
                    }

                    // Remove ui-state-active class from siblings of the newly focused menu item
                    // to avoid a jump caused by adjacent elements both having a class with a border
                    this._removeClass( target.siblings().children( ".ui-state-active" ),
                        null, "ui-state-active" );
                    this.focus( event, target );
                },
                mouseleave: "collapseAll",
                "mouseleave .ui-menu": "collapseAll",
                focus: function( event, keepActiveItem ) {

                    // If there's already an active item, keep it active
                    // If not, activate the first item
                    var item = this.active || this.element.find( this.options.items ).eq( 0 );

                    if ( !keepActiveItem ) {
                        this.focus( event, item );
                    }
                },
                blur: function( event ) {
                    this._delay( function() {
                        var notContained = !$.contains(
                            this.element[ 0 ],
                            $.ui.safeActiveElement( this.document[ 0 ] )
                        );
                        if ( notContained ) {
                            this.collapseAll( event );
                        }
                    } );
                },
                keydown: "_keydown"
            } );

            this.refresh();

            // Clicks outside of a menu collapse any open menus
            this._on( this.document, {
                click: function( event ) {
                    if ( this._closeOnDocumentClick( event ) ) {
                        this.collapseAll( event );
                    }

                    // Reset the mouseHandled flag
                    this.mouseHandled = false;
                }
            } );
        },

        _destroy: function() {
            var items = this.element.find( ".ui-menu-item" )
                    .removeAttr( "role aria-disabled" ),
                submenus = items.children( ".ui-menu-item-wrapper" )
                    .removeUniqueId()
                    .removeAttr( "tabIndex role aria-haspopup" );

            // Destroy (sub)menus
            this.element
                .removeAttr( "aria-activedescendant" )
                .find( ".ui-menu" ).addBack()
                .removeAttr( "role aria-labelledby aria-expanded aria-hidden aria-disabled " +
                    "tabIndex" )
                .removeUniqueId()
                .show();

            submenus.children().each( function() {
                var elem = $( this );
                if ( elem.data( "ui-menu-submenu-caret" ) ) {
                    elem.remove();
                }
            } );
        },

        _keydown: function( event ) {
            var match, prev, character, skip,
                preventDefault = true;

            switch ( event.keyCode ) {
                case $.ui.keyCode.PAGE_UP:
                    this.previousPage( event );
                    break;
                case $.ui.keyCode.PAGE_DOWN:
                    this.nextPage( event );
                    break;
                case $.ui.keyCode.HOME:
                    this._move( "first", "first", event );
                    break;
                case $.ui.keyCode.END:
                    this._move( "last", "last", event );
                    break;
                case $.ui.keyCode.UP:
                    this.previous( event );
                    break;
                case $.ui.keyCode.DOWN:
                    this.next( event );
                    break;
                case $.ui.keyCode.LEFT:
                    this.collapse( event );
                    break;
                case $.ui.keyCode.RIGHT:
                    if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
                        this.expand( event );
                    }
                    break;
                case $.ui.keyCode.ENTER:
                case $.ui.keyCode.SPACE:
                    this._activate( event );
                    break;
                case $.ui.keyCode.ESCAPE:
                    this.collapse( event );
                    break;
                default:
                    preventDefault = false;
                    prev = this.previousFilter || "";
                    skip = false;

                    // Support number pad values
                    character = event.keyCode >= 96 && event.keyCode <= 105 ?
                        ( event.keyCode - 96 ).toString() : String.fromCharCode( event.keyCode );

                    clearTimeout( this.filterTimer );

                    if ( character === prev ) {
                        skip = true;
                    } else {
                        character = prev + character;
                    }

                    match = this._filterMenuItems( character );
                    match = skip && match.index( this.active.next() ) !== -1 ?
                        this.active.nextAll( ".ui-menu-item" ) :
                        match;

                    // If no matches on the current filter, reset to the last character pressed
                    // to move down the menu to the first item that starts with that character
                    if ( !match.length ) {
                        character = String.fromCharCode( event.keyCode );
                        match = this._filterMenuItems( character );
                    }

                    if ( match.length ) {
                        this.focus( event, match );
                        this.previousFilter = character;
                        this.filterTimer = this._delay( function() {
                            delete this.previousFilter;
                        }, 1000 );
                    } else {
                        delete this.previousFilter;
                    }
            }

            if ( preventDefault ) {
                event.preventDefault();
            }
        },

        _activate: function( event ) {
            if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
                if ( this.active.children( "[aria-haspopup='true']" ).length ) {
                    this.expand( event );
                } else {
                    this.select( event );
                }
            }
        },

        refresh: function() {
            var menus, items, newSubmenus, newItems, newWrappers,
                that = this,
                icon = this.options.icons.submenu,
                submenus = this.element.find( this.options.menus );

            this._toggleClass( "ui-menu-icons", null, !!this.element.find( ".ui-icon" ).length );

            // Initialize nested menus
            newSubmenus = submenus.filter( ":not(.ui-menu)" )
                .hide()
                .attr( {
                    role: this.options.role,
                    "aria-hidden": "true",
                    "aria-expanded": "false"
                } )
                .each( function() {
                    var menu = $( this ),
                        item = menu.prev(),
                        submenuCaret = $( "<span>" ).data( "ui-menu-submenu-caret", true );

                    that._addClass( submenuCaret, "ui-menu-icon", "ui-icon " + icon );
                    item
                        .attr( "aria-haspopup", "true" )
                        .prepend( submenuCaret );
                    menu.attr( "aria-labelledby", item.attr( "id" ) );
                } );

            this._addClass( newSubmenus, "ui-menu", "ui-widget ui-widget-content ui-front" );

            menus = submenus.add( this.element );
            items = menus.find( this.options.items );

            // Initialize menu-items containing spaces and/or dashes only as dividers
            items.not( ".ui-menu-item" ).each( function() {
                var item = $( this );
                if ( that._isDivider( item ) ) {
                    that._addClass( item, "ui-menu-divider", "ui-widget-content" );
                }
            } );

            // Don't refresh list items that are already adapted
            newItems = items.not( ".ui-menu-item, .ui-menu-divider" );
            newWrappers = newItems.children()
                .not( ".ui-menu" )
                .uniqueId()
                .attr( {
                    tabIndex: -1,
                    role: this._itemRole()
                } );
            this._addClass( newItems, "ui-menu-item" )
                ._addClass( newWrappers, "ui-menu-item-wrapper" );

            // Add aria-disabled attribute to any disabled menu item
            items.filter( ".ui-state-disabled" ).attr( "aria-disabled", "true" );

            // If the active item has been removed, blur the menu
            if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
                this.blur();
            }
        },

        _itemRole: function() {
            return {
                menu: "menuitem",
                listbox: "option"
            }[ this.options.role ];
        },

        _setOption: function( key, value ) {
            if ( key === "icons" ) {
                var icons = this.element.find( ".ui-menu-icon" );
                this._removeClass( icons, null, this.options.icons.submenu )
                    ._addClass( icons, null, value.submenu );
            }
            this._super( key, value );
        },

        _setOptionDisabled: function( value ) {
            this._super( value );

            this.element.attr( "aria-disabled", String( value ) );
            this._toggleClass( null, "ui-state-disabled", !!value );
        },

        focus: function( event, item ) {
            var nested, focused, activeParent;
            this.blur( event, event && event.type === "focus" );

            this._scrollIntoView( item );

            this.active = item.first();

            focused = this.active.children( ".ui-menu-item-wrapper" );
            this._addClass( focused, null, "ui-state-active" );

            // Only update aria-activedescendant if there's a role
            // otherwise we assume focus is managed elsewhere
            if ( this.options.role ) {
                this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
            }

            // Highlight active parent menu item, if any
            activeParent = this.active
                .parent()
                .closest( ".ui-menu-item" )
                .children( ".ui-menu-item-wrapper" );
            this._addClass( activeParent, null, "ui-state-active" );

            if ( event && event.type === "keydown" ) {
                this._close();
            } else {
                this.timer = this._delay( function() {
                    this._close();
                }, this.delay );
            }

            nested = item.children( ".ui-menu" );
            if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) {
                this._startOpening( nested );
            }
            this.activeMenu = item.parent();

            this._trigger( "focus", event, { item: item } );
        },

        _scrollIntoView: function( item ) {
            var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
            if ( this._hasScroll() ) {
                borderTop = parseFloat( $.css( this.activeMenu[ 0 ], "borderTopWidth" ) ) || 0;
                paddingTop = parseFloat( $.css( this.activeMenu[ 0 ], "paddingTop" ) ) || 0;
                offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
                scroll = this.activeMenu.scrollTop();
                elementHeight = this.activeMenu.height();
                itemHeight = item.outerHeight();

                if ( offset < 0 ) {
                    this.activeMenu.scrollTop( scroll + offset );
                } else if ( offset + itemHeight > elementHeight ) {
                    this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
                }
            }
        },

        blur: function( event, fromFocus ) {
            if ( !fromFocus ) {
                clearTimeout( this.timer );
            }

            if ( !this.active ) {
                return;
            }

            this._removeClass( this.active.children( ".ui-menu-item-wrapper" ),
                null, "ui-state-active" );

            this._trigger( "blur", event, { item: this.active } );
            this.active = null;
        },

        _startOpening: function( submenu ) {
            clearTimeout( this.timer );

            // Don't open if already open fixes a Firefox bug that caused a .5 pixel
            // shift in the submenu position when mousing over the caret icon
            if ( submenu.attr( "aria-hidden" ) !== "true" ) {
                return;
            }

            this.timer = this._delay( function() {
                this._close();
                this._open( submenu );
            }, this.delay );
        },

        _open: function( submenu ) {
            var position = $.extend( {
                of: this.active
            }, this.options.position );

            clearTimeout( this.timer );
            this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
                .hide()
                .attr( "aria-hidden", "true" );

            submenu
                .show()
                .removeAttr( "aria-hidden" )
                .attr( "aria-expanded", "true" )
                .position( position );
        },

        collapseAll: function( event, all ) {
            clearTimeout( this.timer );
            this.timer = this._delay( function() {

                // If we were passed an event, look for the submenu that contains the event
                var currentMenu = all ? this.element :
                    $( event && event.target ).closest( this.element.find( ".ui-menu" ) );

                // If we found no valid submenu ancestor, use the main menu to close all
                // sub menus anyway
                if ( !currentMenu.length ) {
                    currentMenu = this.element;
                }

                this._close( currentMenu );

                this.blur( event );

                // Work around active item staying active after menu is blurred
                this._removeClass( currentMenu.find( ".ui-state-active" ), null, "ui-state-active" );

                this.activeMenu = currentMenu;
            }, this.delay );
        },

        // With no arguments, closes the currently active menu - if nothing is active
        // it closes all menus.  If passed an argument, it will search for menus BELOW
        _close: function( startMenu ) {
            if ( !startMenu ) {
                startMenu = this.active ? this.active.parent() : this.element;
            }

            startMenu.find( ".ui-menu" )
                .hide()
                .attr( "aria-hidden", "true" )
                .attr( "aria-expanded", "false" );
        },

        _closeOnDocumentClick: function( event ) {
            return !$( event.target ).closest( ".ui-menu" ).length;
        },

        _isDivider: function( item ) {

            // Match hyphen, em dash, en dash
            return !/[^\-\u2014\u2013\s]/.test( item.text() );
        },

        collapse: function( event ) {
            var newItem = this.active &&
                this.active.parent().closest( ".ui-menu-item", this.element );
            if ( newItem && newItem.length ) {
                this._close();
                this.focus( event, newItem );
            }
        },

        expand: function( event ) {
            var newItem = this.active &&
                this.active
                    .children( ".ui-menu " )
                    .find( this.options.items )
                    .first();

            if ( newItem && newItem.length ) {
                this._open( newItem.parent() );

                // Delay so Firefox will not hide activedescendant change in expanding submenu from AT
                this._delay( function() {
                    this.focus( event, newItem );
                } );
            }
        },

        next: function( event ) {
            this._move( "next", "first", event );
        },

        previous: function( event ) {
            this._move( "prev", "last", event );
        },

        isFirstItem: function() {
            return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
        },

        isLastItem: function() {
            return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
        },

        _move: function( direction, filter, event ) {
            var next;
            if ( this.active ) {
                if ( direction === "first" || direction === "last" ) {
                    next = this.active
                        [ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
                        .eq( -1 );
                } else {
                    next = this.active
                        [ direction + "All" ]( ".ui-menu-item" )
                        .eq( 0 );
                }
            }
            if ( !next || !next.length || !this.active ) {
                next = this.activeMenu.find( this.options.items )[ filter ]();
            }

            this.focus( event, next );
        },

        nextPage: function( event ) {
            var item, base, height;

            if ( !this.active ) {
                this.next( event );
                return;
            }
            if ( this.isLastItem() ) {
                return;
            }
            if ( this._hasScroll() ) {
                base = this.active.offset().top;
                height = this.element.height();
                this.active.nextAll( ".ui-menu-item" ).each( function() {
                    item = $( this );
                    return item.offset().top - base - height < 0;
                } );

                this.focus( event, item );
            } else {
                this.focus( event, this.activeMenu.find( this.options.items )
                    [ !this.active ? "first" : "last" ]() );
            }
        },

        previousPage: function( event ) {
            var item, base, height;
            if ( !this.active ) {
                this.next( event );
                return;
            }
            if ( this.isFirstItem() ) {
                return;
            }
            if ( this._hasScroll() ) {
                base = this.active.offset().top;
                height = this.element.height();
                this.active.prevAll( ".ui-menu-item" ).each( function() {
                    item = $( this );
                    return item.offset().top - base + height > 0;
                } );

                this.focus( event, item );
            } else {
                this.focus( event, this.activeMenu.find( this.options.items ).first() );
            }
        },

        _hasScroll: function() {
            return this.element.outerHeight() < this.element.prop( "scrollHeight" );
        },

        select: function( event ) {

            // TODO: It should never be possible to not have an active item at this
            // point, but the tests don't trigger mouseenter before click.
            this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
            var ui = { item: this.active };
            if ( !this.active.has( ".ui-menu" ).length ) {
                this.collapseAll( event, true );
            }
            this._trigger( "select", event, ui );
        },

        _filterMenuItems: function( character ) {
            var escapedCharacter = character.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" ),
                regex = new RegExp( "^" + escapedCharacter, "i" );

            return this.activeMenu
                .find( this.options.items )

                // Only match on items, not dividers or other content (#10571)
                .filter( ".ui-menu-item" )
                .filter( function() {
                    return regex.test(
                        $.trim( $( this ).children( ".ui-menu-item-wrapper" ).text() ) );
                } );
        }
    } );


    /*!
     * jQuery UI Autocomplete 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Autocomplete
//>>group: Widgets
//>>description: Lists suggested words as the user is typing.
//>>docs: http://api.jqueryui.com/autocomplete/
//>>demos: http://jqueryui.com/autocomplete/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/autocomplete.css
//>>css.theme: ../../themes/base/theme.css



    $.widget( "ui.autocomplete", {
        version: "1.12.1",
        defaultElement: "<input>",
        options: {
            appendTo: null,
            autoFocus: false,
            delay: 300,
            minLength: 1,
            position: {
                my: "left top",
                at: "left bottom",
                collision: "none"
            },
            source: null,

            // Callbacks
            change: null,
            close: null,
            focus: null,
            open: null,
            response: null,
            search: null,
            select: null
        },

        requestIndex: 0,
        pending: 0,

        _create: function() {

            // Some browsers only repeat keydown events, not keypress events,
            // so we use the suppressKeyPress flag to determine if we've already
            // handled the keydown event. #7269
            // Unfortunately the code for & in keypress is the same as the up arrow,
            // so we use the suppressKeyPressRepeat flag to avoid handling keypress
            // events when we know the keydown event was used to modify the
            // search term. #7799
            var suppressKeyPress, suppressKeyPressRepeat, suppressInput,
                nodeName = this.element[ 0 ].nodeName.toLowerCase(),
                isTextarea = nodeName === "textarea",
                isInput = nodeName === "input";

            // Textareas are always multi-line
            // Inputs are always single-line, even if inside a contentEditable element
            // IE also treats inputs as contentEditable
            // All other element types are determined by whether or not they're contentEditable
            this.isMultiLine = isTextarea || !isInput && this._isContentEditable( this.element );

            this.valueMethod = this.element[ isTextarea || isInput ? "val" : "text" ];
            this.isNewMenu = true;

            this._addClass( "ui-autocomplete-input" );
            this.element.attr( "autocomplete", "off" );

            this._on( this.element, {
                keydown: function( event ) {
                    if ( this.element.prop( "readOnly" ) ) {
                        suppressKeyPress = true;
                        suppressInput = true;
                        suppressKeyPressRepeat = true;
                        return;
                    }

                    suppressKeyPress = false;
                    suppressInput = false;
                    suppressKeyPressRepeat = false;
                    var keyCode = $.ui.keyCode;
                    switch ( event.keyCode ) {
                        case keyCode.PAGE_UP:
                            suppressKeyPress = true;
                            this._move( "previousPage", event );
                            break;
                        case keyCode.PAGE_DOWN:
                            suppressKeyPress = true;
                            this._move( "nextPage", event );
                            break;
                        case keyCode.UP:
                            suppressKeyPress = true;
                            this._keyEvent( "previous", event );
                            break;
                        case keyCode.DOWN:
                            suppressKeyPress = true;
                            this._keyEvent( "next", event );
                            break;
                        case keyCode.ENTER:

                            // when menu is open and has focus
                            if ( this.menu.active ) {

                                // #6055 - Opera still allows the keypress to occur
                                // which causes forms to submit
                                suppressKeyPress = true;
                                event.preventDefault();
                                this.menu.select( event );
                            }
                            break;
                        case keyCode.TAB:
                            if ( this.menu.active ) {
                                this.menu.select( event );
                            }
                            break;
                        case keyCode.ESCAPE:
                            if ( this.menu.element.is( ":visible" ) ) {
                                if ( !this.isMultiLine ) {
                                    this._value( this.term );
                                }
                                this.close( event );

                                // Different browsers have different default behavior for escape
                                // Single press can mean undo or clear
                                // Double press in IE means clear the whole form
                                event.preventDefault();
                            }
                            break;
                        default:
                            suppressKeyPressRepeat = true;

                            // search timeout should be triggered before the input value is changed
                            this._searchTimeout( event );
                            break;
                    }
                },
                keypress: function( event ) {
                    if ( suppressKeyPress ) {
                        suppressKeyPress = false;
                        if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) {
                            event.preventDefault();
                        }
                        return;
                    }
                    if ( suppressKeyPressRepeat ) {
                        return;
                    }

                    // Replicate some key handlers to allow them to repeat in Firefox and Opera
                    var keyCode = $.ui.keyCode;
                    switch ( event.keyCode ) {
                        case keyCode.PAGE_UP:
                            this._move( "previousPage", event );
                            break;
                        case keyCode.PAGE_DOWN:
                            this._move( "nextPage", event );
                            break;
                        case keyCode.UP:
                            this._keyEvent( "previous", event );
                            break;
                        case keyCode.DOWN:
                            this._keyEvent( "next", event );
                            break;
                    }
                },
                input: function( event ) {
                    if ( suppressInput ) {
                        suppressInput = false;
                        event.preventDefault();
                        return;
                    }
                    this._searchTimeout( event );
                },
                focus: function() {
                    this.selectedItem = null;
                    this.previous = this._value();
                },
                blur: function( event ) {
                    if ( this.cancelBlur ) {
                        delete this.cancelBlur;
                        return;
                    }

                    clearTimeout( this.searching );
                    this.close( event );
                    this._change( event );
                }
            } );

            this._initSource();
            this.menu = $( "<ul>" )
                .appendTo( this._appendTo() )
                .menu( {

                    // disable ARIA support, the live region takes care of that
                    role: null
                } )
                .hide()
                .menu( "instance" );

            this._addClass( this.menu.element, "ui-autocomplete", "ui-front" );
            this._on( this.menu.element, {
                mousedown: function( event ) {

                    // prevent moving focus out of the text field
                    event.preventDefault();

                    // IE doesn't prevent moving focus even with event.preventDefault()
                    // so we set a flag to know when we should ignore the blur event
                    this.cancelBlur = true;
                    this._delay( function() {
                        delete this.cancelBlur;

                        // Support: IE 8 only
                        // Right clicking a menu item or selecting text from the menu items will
                        // result in focus moving out of the input. However, we've already received
                        // and ignored the blur event because of the cancelBlur flag set above. So
                        // we restore focus to ensure that the menu closes properly based on the user's
                        // next actions.
                        if ( this.element[ 0 ] !== $.ui.safeActiveElement( this.document[ 0 ] ) ) {
                            this.element.trigger( "focus" );
                        }
                    } );
                },
                menufocus: function( event, ui ) {
                    var label, item;

                    // support: Firefox
                    // Prevent accidental activation of menu items in Firefox (#7024 #9118)
                    if ( this.isNewMenu ) {
                        this.isNewMenu = false;
                        if ( event.originalEvent && /^mouse/.test( event.originalEvent.type ) ) {
                            this.menu.blur();

                            this.document.one( "mousemove", function() {
                                $( event.target ).trigger( event.originalEvent );
                            } );

                            return;
                        }
                    }

                    item = ui.item.data( "ui-autocomplete-item" );
                    if ( false !== this._trigger( "focus", event, { item: item } ) ) {

                        // use value to match what will end up in the input, if it was a key event
                        if ( event.originalEvent && /^key/.test( event.originalEvent.type ) ) {
                            this._value( item.value );
                        }
                    }

                    // Announce the value in the liveRegion
                    label = ui.item.attr( "aria-label" ) || item.value;
                    if ( label && $.trim( label ).length ) {
                        this.liveRegion.children().hide();
                        $( "<div>" ).text( label ).appendTo( this.liveRegion );
                    }
                },
                menuselect: function( event, ui ) {
                    var item = ui.item.data( "ui-autocomplete-item" ),
                        previous = this.previous;

                    // Only trigger when focus was lost (click on menu)
                    if ( this.element[ 0 ] !== $.ui.safeActiveElement( this.document[ 0 ] ) ) {
                        this.element.trigger( "focus" );
                        this.previous = previous;

                        // #6109 - IE triggers two focus events and the second
                        // is asynchronous, so we need to reset the previous
                        // term synchronously and asynchronously :-(
                        this._delay( function() {
                            this.previous = previous;
                            this.selectedItem = item;
                        } );
                    }

                    if ( false !== this._trigger( "select", event, { item: item } ) ) {
                        this._value( item.value );
                    }

                    // reset the term after the select event
                    // this allows custom select handling to work properly
                    this.term = this._value();

                    this.close( event );
                    this.selectedItem = item;
                }
            } );

            this.liveRegion = $( "<div>", {
                role: "status",
                "aria-live": "assertive",
                "aria-relevant": "additions"
            } )
                .appendTo( this.document[ 0 ].body );

            this._addClass( this.liveRegion, null, "ui-helper-hidden-accessible" );

            // Turning off autocomplete prevents the browser from remembering the
            // value when navigating through history, so we re-enable autocomplete
            // if the page is unloaded before the widget is destroyed. #7790
            this._on( this.window, {
                beforeunload: function() {
                    this.element.removeAttr( "autocomplete" );
                }
            } );
        },

        _destroy: function() {
            clearTimeout( this.searching );
            this.element.removeAttr( "autocomplete" );
            this.menu.element.remove();
            this.liveRegion.remove();
        },

        _setOption: function( key, value ) {
            this._super( key, value );
            if ( key === "source" ) {
                this._initSource();
            }
            if ( key === "appendTo" ) {
                this.menu.element.appendTo( this._appendTo() );
            }
            if ( key === "disabled" && value && this.xhr ) {
                this.xhr.abort();
            }
        },

        _isEventTargetInWidget: function( event ) {
            var menuElement = this.menu.element[ 0 ];

            return event.target === this.element[ 0 ] ||
                event.target === menuElement ||
                $.contains( menuElement, event.target );
        },

        _closeOnClickOutside: function( event ) {
            if ( !this._isEventTargetInWidget( event ) ) {
                this.close();
            }
        },

        _appendTo: function() {
            var element = this.options.appendTo;

            if ( element ) {
                element = element.jquery || element.nodeType ?
                    $( element ) :
                    this.document.find( element ).eq( 0 );
            }

            if ( !element || !element[ 0 ] ) {
                element = this.element.closest( ".ui-front, dialog" );
            }

            if ( !element.length ) {
                element = this.document[ 0 ].body;
            }

            return element;
        },

        _initSource: function() {
            var array, url,
                that = this;
            if ( $.isArray( this.options.source ) ) {
                array = this.options.source;
                this.source = function( request, response ) {
                    response( $.ui.autocomplete.filter( array, request.term ) );
                };
            } else if ( typeof this.options.source === "string" ) {
                url = this.options.source;
                this.source = function( request, response ) {
                    if ( that.xhr ) {
                        that.xhr.abort();
                    }
                    that.xhr = $.ajax( {
                        url: url,
                        data: request,
                        dataType: "json",
                        success: function( data ) {
                            response( data );
                        },
                        error: function() {
                            response( [] );
                        }
                    } );
                };
            } else {
                this.source = this.options.source;
            }
        },

        _searchTimeout: function( event ) {
            clearTimeout( this.searching );
            this.searching = this._delay( function() {

                // Search if the value has changed, or if the user retypes the same value (see #7434)
                var equalValues = this.term === this._value(),
                    menuVisible = this.menu.element.is( ":visible" ),
                    modifierKey = event.altKey || event.ctrlKey || event.metaKey || event.shiftKey;

                if ( !equalValues || ( equalValues && !menuVisible && !modifierKey ) ) {
                    this.selectedItem = null;
                    this.search( null, event );
                }
            }, this.options.delay );
        },

        search: function( value, event ) {
            value = value != null ? value : this._value();

            // Always save the actual value, not the one passed as an argument
            this.term = this._value();

            if ( value.length < this.options.minLength ) {
                return this.close( event );
            }

            if ( this._trigger( "search", event ) === false ) {
                return;
            }

            return this._search( value );
        },

        _search: function( value ) {
            this.pending++;
            this._addClass( "ui-autocomplete-loading" );
            this.cancelSearch = false;

            this.source( { term: value }, this._response() );
        },

        _response: function() {
            var index = ++this.requestIndex;

            return $.proxy( function( content ) {
                if ( index === this.requestIndex ) {
                    this.__response( content );
                }

                this.pending--;
                if ( !this.pending ) {
                    this._removeClass( "ui-autocomplete-loading" );
                }
            }, this );
        },

        __response: function( content ) {
            if ( content ) {
                content = this._normalize( content );
            }
            this._trigger( "response", null, { content: content } );
            if ( !this.options.disabled && content && content.length && !this.cancelSearch ) {
                this._suggest( content );
                this._trigger( "open" );
            } else {

                // use ._close() instead of .close() so we don't cancel future searches
                this._close();
            }
        },

        close: function( event ) {
            this.cancelSearch = true;
            this._close( event );
        },

        _close: function( event ) {

            // Remove the handler that closes the menu on outside clicks
            this._off( this.document, "mousedown" );

            if ( this.menu.element.is( ":visible" ) ) {
                this.menu.element.hide();
                this.menu.blur();
                this.isNewMenu = true;
                this._trigger( "close", event );
            }
        },

        _change: function( event ) {
            if ( this.previous !== this._value() ) {
                this._trigger( "change", event, { item: this.selectedItem } );
            }
        },

        _normalize: function( items ) {

            // assume all items have the right format when the first item is complete
            if ( items.length && items[ 0 ].label && items[ 0 ].value ) {
                return items;
            }
            return $.map( items, function( item ) {
                if ( typeof item === "string" ) {
                    return {
                        label: item,
                        value: item
                    };
                }
                return $.extend( {}, item, {
                    label: item.label || item.value,
                    value: item.value || item.label
                } );
            } );
        },

        _suggest: function( items ) {
            var ul = this.menu.element.empty();
            this._renderMenu( ul, items );
            this.isNewMenu = true;
            this.menu.refresh();

            // Size and position menu
            ul.show();
            this._resizeMenu();
            ul.position( $.extend( {
                of: this.element
            }, this.options.position ) );

            if ( this.options.autoFocus ) {
                this.menu.next();
            }

            // Listen for interactions outside of the widget (#6642)
            this._on( this.document, {
                mousedown: "_closeOnClickOutside"
            } );
        },

        _resizeMenu: function() {
            var ul = this.menu.element;
            ul.outerWidth( Math.max(

                // Firefox wraps long text (possibly a rounding bug)
                // so we add 1px to avoid the wrapping (#7513)
                ul.width( "" ).outerWidth() + 1,
                this.element.outerWidth()
            ) );
        },

        _renderMenu: function( ul, items ) {
            var that = this;
            $.each( items, function( index, item ) {
                that._renderItemData( ul, item );
            } );
        },

        _renderItemData: function( ul, item ) {
            return this._renderItem( ul, item ).data( "ui-autocomplete-item", item );
        },

        _renderItem: function( ul, item ) {
            return $( "<li>" )
                .append( $( "<div>" ).text( item.label ) )
                .appendTo( ul );
        },

        _move: function( direction, event ) {
            if ( !this.menu.element.is( ":visible" ) ) {
                this.search( null, event );
                return;
            }
            if ( this.menu.isFirstItem() && /^previous/.test( direction ) ||
                this.menu.isLastItem() && /^next/.test( direction ) ) {

                if ( !this.isMultiLine ) {
                    this._value( this.term );
                }

                this.menu.blur();
                return;
            }
            this.menu[ direction ]( event );
        },

        widget: function() {
            return this.menu.element;
        },

        _value: function() {
            return this.valueMethod.apply( this.element, arguments );
        },

        _keyEvent: function( keyEvent, event ) {
            if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) {
                this._move( keyEvent, event );

                // Prevents moving cursor to beginning/end of the text field in some browsers
                event.preventDefault();
            }
        },

        // Support: Chrome <=50
        // We should be able to just use this.element.prop( "isContentEditable" )
        // but hidden elements always report false in Chrome.
        // https://code.google.com/p/chromium/issues/detail?id=313082
        _isContentEditable: function( element ) {
            if ( !element.length ) {
                return false;
            }

            var editable = element.prop( "contentEditable" );

            if ( editable === "inherit" ) {
                return this._isContentEditable( element.parent() );
            }

            return editable === "true";
        }
    } );

    $.extend( $.ui.autocomplete, {
        escapeRegex: function( value ) {
            return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" );
        },
        filter: function( array, term ) {
            var matcher = new RegExp( $.ui.autocomplete.escapeRegex( term ), "i" );
            return $.grep( array, function( value ) {
                return matcher.test( value.label || value.value || value );
            } );
        }
    } );

// Live region extension, adding a `messages` option
// NOTE: This is an experimental API. We are still investigating
// a full solution for string manipulation and internationalization.
    $.widget( "ui.autocomplete", $.ui.autocomplete, {
        options: {
            messages: {
                noResults: "No search results.",
                results: function( amount ) {
                    return amount + ( amount > 1 ? " results are" : " result is" ) +
                        " available, use up and down arrow keys to navigate.";
                }
            }
        },

        __response: function( content ) {
            var message;
            this._superApply( arguments );
            if ( this.options.disabled || this.cancelSearch ) {
                return;
            }
            if ( content && content.length ) {
                message = this.options.messages.results( content.length );
            } else {
                message = this.options.messages.noResults;
            }
            this.liveRegion.children().hide();
            $( "<div>" ).text( message ).appendTo( this.liveRegion );
        }
    } );

    var widgetsAutocomplete = $.ui.autocomplete;


    /*!
     * jQuery UI Controlgroup 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Controlgroup
//>>group: Widgets
//>>description: Visually groups form control widgets
//>>docs: http://api.jqueryui.com/controlgroup/
//>>demos: http://jqueryui.com/controlgroup/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/controlgroup.css
//>>css.theme: ../../themes/base/theme.css


    var controlgroupCornerRegex = /ui-corner-([a-z]){2,6}/g;

    var widgetsControlgroup = $.widget( "ui.controlgroup", {
        version: "1.12.1",
        defaultElement: "<div>",
        options: {
            direction: "horizontal",
            disabled: null,
            onlyVisible: true,
            items: {
                "button": "input[type=button], input[type=submit], input[type=reset], button, a",
                "controlgroupLabel": ".ui-controlgroup-label",
                "checkboxradio": "input[type='checkbox'], input[type='radio']",
                "selectmenu": "select",
                "spinner": ".ui-spinner-input"
            }
        },

        _create: function() {
            this._enhance();
        },

        // To support the enhanced option in jQuery Mobile, we isolate DOM manipulation
        _enhance: function() {
            this.element.attr( "role", "toolbar" );
            this.refresh();
        },

        _destroy: function() {
            this._callChildMethod( "destroy" );
            this.childWidgets.removeData( "ui-controlgroup-data" );
            this.element.removeAttr( "role" );
            if ( this.options.items.controlgroupLabel ) {
                this.element
                    .find( this.options.items.controlgroupLabel )
                    .find( ".ui-controlgroup-label-contents" )
                    .contents().unwrap();
            }
        },

        _initWidgets: function() {
            var that = this,
                childWidgets = [];

            // First we iterate over each of the items options
            $.each( this.options.items, function( widget, selector ) {
                var labels;
                var options = {};

                // Make sure the widget has a selector set
                if ( !selector ) {
                    return;
                }

                if ( widget === "controlgroupLabel" ) {
                    labels = that.element.find( selector );
                    labels.each( function() {
                        var element = $( this );

                        if ( element.children( ".ui-controlgroup-label-contents" ).length ) {
                            return;
                        }
                        element.contents()
                            .wrapAll( "<span class='ui-controlgroup-label-contents'></span>" );
                    } );
                    that._addClass( labels, null, "ui-widget ui-widget-content ui-state-default" );
                    childWidgets = childWidgets.concat( labels.get() );
                    return;
                }

                // Make sure the widget actually exists
                if ( !$.fn[ widget ] ) {
                    return;
                }

                // We assume everything is in the middle to start because we can't determine
                // first / last elements until all enhancments are done.
                if ( that[ "_" + widget + "Options" ] ) {
                    options = that[ "_" + widget + "Options" ]( "middle" );
                } else {
                    options = { classes: {} };
                }

                // Find instances of this widget inside controlgroup and init them
                that.element
                    .find( selector )
                    .each( function() {
                        var element = $( this );
                        var instance = element[ widget ]( "instance" );

                        // We need to clone the default options for this type of widget to avoid
                        // polluting the variable options which has a wider scope than a single widget.
                        var instanceOptions = $.widget.extend( {}, options );

                        // If the button is the child of a spinner ignore it
                        // TODO: Find a more generic solution
                        if ( widget === "button" && element.parent( ".ui-spinner" ).length ) {
                            return;
                        }

                        // Create the widget if it doesn't exist
                        if ( !instance ) {
                            instance = element[ widget ]()[ widget ]( "instance" );
                        }
                        if ( instance ) {
                            instanceOptions.classes =
                                that._resolveClassesValues( instanceOptions.classes, instance );
                        }
                        element[ widget ]( instanceOptions );

                        // Store an instance of the controlgroup to be able to reference
                        // from the outermost element for changing options and refresh
                        var widgetElement = element[ widget ]( "widget" );
                        $.data( widgetElement[ 0 ], "ui-controlgroup-data",
                            instance ? instance : element[ widget ]( "instance" ) );

                        childWidgets.push( widgetElement[ 0 ] );
                    } );
            } );

            this.childWidgets = $( $.unique( childWidgets ) );
            this._addClass( this.childWidgets, "ui-controlgroup-item" );
        },

        _callChildMethod: function( method ) {
            this.childWidgets.each( function() {
                var element = $( this ),
                    data = element.data( "ui-controlgroup-data" );
                if ( data && data[ method ] ) {
                    data[ method ]();
                }
            } );
        },

        _updateCornerClass: function( element, position ) {
            var remove = "ui-corner-top ui-corner-bottom ui-corner-left ui-corner-right ui-corner-all";
            var add = this._buildSimpleOptions( position, "label" ).classes.label;

            this._removeClass( element, null, remove );
            this._addClass( element, null, add );
        },

        _buildSimpleOptions: function( position, key ) {
            var direction = this.options.direction === "vertical";
            var result = {
                classes: {}
            };
            result.classes[ key ] = {
                "middle": "",
                "first": "ui-corner-" + ( direction ? "top" : "left" ),
                "last": "ui-corner-" + ( direction ? "bottom" : "right" ),
                "only": "ui-corner-all"
            }[ position ];

            return result;
        },

        _spinnerOptions: function( position ) {
            var options = this._buildSimpleOptions( position, "ui-spinner" );

            options.classes[ "ui-spinner-up" ] = "";
            options.classes[ "ui-spinner-down" ] = "";

            return options;
        },

        _buttonOptions: function( position ) {
            return this._buildSimpleOptions( position, "ui-button" );
        },

        _checkboxradioOptions: function( position ) {
            return this._buildSimpleOptions( position, "ui-checkboxradio-label" );
        },

        _selectmenuOptions: function( position ) {
            var direction = this.options.direction === "vertical";
            return {
                width: direction ? "auto" : false,
                classes: {
                    middle: {
                        "ui-selectmenu-button-open": "",
                        "ui-selectmenu-button-closed": ""
                    },
                    first: {
                        "ui-selectmenu-button-open": "ui-corner-" + ( direction ? "top" : "tl" ),
                        "ui-selectmenu-button-closed": "ui-corner-" + ( direction ? "top" : "left" )
                    },
                    last: {
                        "ui-selectmenu-button-open": direction ? "" : "ui-corner-tr",
                        "ui-selectmenu-button-closed": "ui-corner-" + ( direction ? "bottom" : "right" )
                    },
                    only: {
                        "ui-selectmenu-button-open": "ui-corner-top",
                        "ui-selectmenu-button-closed": "ui-corner-all"
                    }

                }[ position ]
            };
        },

        _resolveClassesValues: function( classes, instance ) {
            var result = {};
            $.each( classes, function( key ) {
                var current = instance.options.classes[ key ] || "";
                current = $.trim( current.replace( controlgroupCornerRegex, "" ) );
                result[ key ] = ( current + " " + classes[ key ] ).replace( /\s+/g, " " );
            } );
            return result;
        },

        _setOption: function( key, value ) {
            if ( key === "direction" ) {
                this._removeClass( "ui-controlgroup-" + this.options.direction );
            }

            this._super( key, value );
            if ( key === "disabled" ) {
                this._callChildMethod( value ? "disable" : "enable" );
                return;
            }

            this.refresh();
        },

        refresh: function() {
            var children,
                that = this;

            this._addClass( "ui-controlgroup ui-controlgroup-" + this.options.direction );

            if ( this.options.direction === "horizontal" ) {
                this._addClass( null, "ui-helper-clearfix" );
            }
            this._initWidgets();

            children = this.childWidgets;

            // We filter here because we need to track all childWidgets not just the visible ones
            if ( this.options.onlyVisible ) {
                children = children.filter( ":visible" );
            }

            if ( children.length ) {

                // We do this last because we need to make sure all enhancment is done
                // before determining first and last
                $.each( [ "first", "last" ], function( index, value ) {
                    var instance = children[ value ]().data( "ui-controlgroup-data" );

                    if ( instance && that[ "_" + instance.widgetName + "Options" ] ) {
                        var options = that[ "_" + instance.widgetName + "Options" ](
                            children.length === 1 ? "only" : value
                        );
                        options.classes = that._resolveClassesValues( options.classes, instance );
                        instance.element[ instance.widgetName ]( options );
                    } else {
                        that._updateCornerClass( children[ value ](), value );
                    }
                } );

                // Finally call the refresh method on each of the child widgets.
                this._callChildMethod( "refresh" );
            }
        }
    } );

    /*!
     * jQuery UI Checkboxradio 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Checkboxradio
//>>group: Widgets
//>>description: Enhances a form with multiple themeable checkboxes or radio buttons.
//>>docs: http://api.jqueryui.com/checkboxradio/
//>>demos: http://jqueryui.com/checkboxradio/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/button.css
//>>css.structure: ../../themes/base/checkboxradio.css
//>>css.theme: ../../themes/base/theme.css



    $.widget( "ui.checkboxradio", [ $.ui.formResetMixin, {
        version: "1.12.1",
        options: {
            disabled: null,
            label: null,
            icon: true,
            classes: {
                "ui-checkboxradio-label": "ui-corner-all",
                "ui-checkboxradio-icon": "ui-corner-all"
            }
        },

        _getCreateOptions: function() {
            var disabled, labels;
            var that = this;
            var options = this._super() || {};

            // We read the type here, because it makes more sense to throw a element type error first,
            // rather then the error for lack of a label. Often if its the wrong type, it
            // won't have a label (e.g. calling on a div, btn, etc)
            this._readType();

            labels = this.element.labels();

            // If there are multiple labels, use the last one
            this.label = $( labels[ labels.length - 1 ] );
            if ( !this.label.length ) {
                $.error( "No label found for checkboxradio widget" );
            }

            this.originalLabel = "";

            // We need to get the label text but this may also need to make sure it does not contain the
            // input itself.
            this.label.contents().not( this.element[ 0 ] ).each( function() {

                // The label contents could be text, html, or a mix. We concat each element to get a
                // string representation of the label, without the input as part of it.
                that.originalLabel += this.nodeType === 3 ? $( this ).text() : this.outerHTML;
            } );

            // Set the label option if we found label text
            if ( this.originalLabel ) {
                options.label = this.originalLabel;
            }

            disabled = this.element[ 0 ].disabled;
            if ( disabled != null ) {
                options.disabled = disabled;
            }
            return options;
        },

        _create: function() {
            var checked = this.element[ 0 ].checked;

            this._bindFormResetHandler();

            if ( this.options.disabled == null ) {
                this.options.disabled = this.element[ 0 ].disabled;
            }

            this._setOption( "disabled", this.options.disabled );
            this._addClass( "ui-checkboxradio", "ui-helper-hidden-accessible" );
            this._addClass( this.label, "ui-checkboxradio-label", "ui-button ui-widget" );

            if ( this.type === "radio" ) {
                this._addClass( this.label, "ui-checkboxradio-radio-label" );
            }

            if ( this.options.label && this.options.label !== this.originalLabel ) {
                this._updateLabel();
            } else if ( this.originalLabel ) {
                this.options.label = this.originalLabel;
            }

            this._enhance();

            if ( checked ) {
                this._addClass( this.label, "ui-checkboxradio-checked", "ui-state-active" );
                if ( this.icon ) {
                    this._addClass( this.icon, null, "ui-state-hover" );
                }
            }

            this._on( {
                change: "_toggleClasses",
                focus: function() {
                    this._addClass( this.label, null, "ui-state-focus ui-visual-focus" );
                },
                blur: function() {
                    this._removeClass( this.label, null, "ui-state-focus ui-visual-focus" );
                }
            } );
        },

        _readType: function() {
            var nodeName = this.element[ 0 ].nodeName.toLowerCase();
            this.type = this.element[ 0 ].type;
            if ( nodeName !== "input" || !/radio|checkbox/.test( this.type ) ) {
                $.error( "Can't create checkboxradio on element.nodeName=" + nodeName +
                    " and element.type=" + this.type );
            }
        },

        // Support jQuery Mobile enhanced option
        _enhance: function() {
            this._updateIcon( this.element[ 0 ].checked );
        },

        widget: function() {
            return this.label;
        },

        _getRadioGroup: function() {
            var group;
            var name = this.element[ 0 ].name;
            var nameSelector = "input[name='" + $.ui.escapeSelector( name ) + "']";

            if ( !name ) {
                return $( [] );
            }

            if ( this.form.length ) {
                group = $( this.form[ 0 ].elements ).filter( nameSelector );
            } else {

                // Not inside a form, check all inputs that also are not inside a form
                group = $( nameSelector ).filter( function() {
                    return $( this ).form().length === 0;
                } );
            }

            return group.not( this.element );
        },

        _toggleClasses: function() {
            var checked = this.element[ 0 ].checked;
            this._toggleClass( this.label, "ui-checkboxradio-checked", "ui-state-active", checked );

            if ( this.options.icon && this.type === "checkbox" ) {
                this._toggleClass( this.icon, null, "ui-icon-check ui-state-checked", checked )
                    ._toggleClass( this.icon, null, "ui-icon-blank", !checked );
            }

            if ( this.type === "radio" ) {
                this._getRadioGroup()
                    .each( function() {
                        var instance = $( this ).checkboxradio( "instance" );

                        if ( instance ) {
                            instance._removeClass( instance.label,
                                "ui-checkboxradio-checked", "ui-state-active" );
                        }
                    } );
            }
        },

        _destroy: function() {
            this._unbindFormResetHandler();

            if ( this.icon ) {
                this.icon.remove();
                this.iconSpace.remove();
            }
        },

        _setOption: function( key, value ) {

            // We don't allow the value to be set to nothing
            if ( key === "label" && !value ) {
                return;
            }

            this._super( key, value );

            if ( key === "disabled" ) {
                this._toggleClass( this.label, null, "ui-state-disabled", value );
                this.element[ 0 ].disabled = value;

                // Don't refresh when setting disabled
                return;
            }
            this.refresh();
        },

        _updateIcon: function( checked ) {
            var toAdd = "ui-icon ui-icon-background ";

            if ( this.options.icon ) {
                if ( !this.icon ) {
                    this.icon = $( "<span>" );
                    this.iconSpace = $( "<span> </span>" );
                    this._addClass( this.iconSpace, "ui-checkboxradio-icon-space" );
                }

                if ( this.type === "checkbox" ) {
                    toAdd += checked ? "ui-icon-check ui-state-checked" : "ui-icon-blank";
                    this._removeClass( this.icon, null, checked ? "ui-icon-blank" : "ui-icon-check" );
                } else {
                    toAdd += "ui-icon-blank";
                }
                this._addClass( this.icon, "ui-checkboxradio-icon", toAdd );
                if ( !checked ) {
                    this._removeClass( this.icon, null, "ui-icon-check ui-state-checked" );
                }
                this.icon.prependTo( this.label ).after( this.iconSpace );
            } else if ( this.icon !== undefined ) {
                this.icon.remove();
                this.iconSpace.remove();
                delete this.icon;
            }
        },

        _updateLabel: function() {

            // Remove the contents of the label ( minus the icon, icon space, and input )
            var contents = this.label.contents().not( this.element[ 0 ] );
            if ( this.icon ) {
                contents = contents.not( this.icon[ 0 ] );
            }
            if ( this.iconSpace ) {
                contents = contents.not( this.iconSpace[ 0 ] );
            }
            contents.remove();

            this.label.append( this.options.label );
        },

        refresh: function() {
            var checked = this.element[ 0 ].checked,
                isDisabled = this.element[ 0 ].disabled;

            this._updateIcon( checked );
            this._toggleClass( this.label, "ui-checkboxradio-checked", "ui-state-active", checked );
            if ( this.options.label !== null ) {
                this._updateLabel();
            }

            if ( isDisabled !== this.options.disabled ) {
                this._setOptions( { "disabled": isDisabled } );
            }
        }

    } ] );

    var widgetsCheckboxradio = $.ui.checkboxradio;


    /*!
     * jQuery UI Button 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Button
//>>group: Widgets
//>>description: Enhances a form with themeable buttons.
//>>docs: http://api.jqueryui.com/button/
//>>demos: http://jqueryui.com/button/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/button.css
//>>css.theme: ../../themes/base/theme.css



    $.widget( "ui.button", {
        version: "1.12.1",
        defaultElement: "<button>",
        options: {
            classes: {
                "ui-button": "ui-corner-all"
            },
            disabled: null,
            icon: null,
            iconPosition: "beginning",
            label: null,
            showLabel: true
        },

        _getCreateOptions: function() {
            var disabled,

                // This is to support cases like in jQuery Mobile where the base widget does have
                // an implementation of _getCreateOptions
                options = this._super() || {};

            this.isInput = this.element.is( "input" );

            disabled = this.element[ 0 ].disabled;
            if ( disabled != null ) {
                options.disabled = disabled;
            }

            this.originalLabel = this.isInput ? this.element.val() : this.element.html();
            if ( this.originalLabel ) {
                options.label = this.originalLabel;
            }

            return options;
        },

        _create: function() {
            if ( !this.option.showLabel & !this.options.icon ) {
                this.options.showLabel = true;
            }

            // We have to check the option again here even though we did in _getCreateOptions,
            // because null may have been passed on init which would override what was set in
            // _getCreateOptions
            if ( this.options.disabled == null ) {
                this.options.disabled = this.element[ 0 ].disabled || false;
            }

            this.hasTitle = !!this.element.attr( "title" );

            // Check to see if the label needs to be set or if its already correct
            if ( this.options.label && this.options.label !== this.originalLabel ) {
                if ( this.isInput ) {
                    this.element.val( this.options.label );
                } else {
                    this.element.html( this.options.label );
                }
            }
            this._addClass( "ui-button", "ui-widget" );
            this._setOption( "disabled", this.options.disabled );
            this._enhance();

            if ( this.element.is( "a" ) ) {
                this._on( {
                    "keyup": function( event ) {
                        if ( event.keyCode === $.ui.keyCode.SPACE ) {
                            event.preventDefault();

                            // Support: PhantomJS <= 1.9, IE 8 Only
                            // If a native click is available use it so we actually cause navigation
                            // otherwise just trigger a click event
                            if ( this.element[ 0 ].click ) {
                                this.element[ 0 ].click();
                            } else {
                                this.element.trigger( "click" );
                            }
                        }
                    }
                } );
            }
        },

        _enhance: function() {
            if ( !this.element.is( "button" ) ) {
                this.element.attr( "role", "button" );
            }

            if ( this.options.icon ) {
                this._updateIcon( "icon", this.options.icon );
                this._updateTooltip();
            }
        },

        _updateTooltip: function() {
            this.title = this.element.attr( "title" );

            if ( !this.options.showLabel && !this.title ) {
                this.element.attr( "title", this.options.label );
            }
        },

        _updateIcon: function( option, value ) {
            var icon = option !== "iconPosition",
                position = icon ? this.options.iconPosition : value,
                displayBlock = position === "top" || position === "bottom";

            // Create icon
            if ( !this.icon ) {
                this.icon = $( "<span>" );

                this._addClass( this.icon, "ui-button-icon", "ui-icon" );

                if ( !this.options.showLabel ) {
                    this._addClass( "ui-button-icon-only" );
                }
            } else if ( icon ) {

                // If we are updating the icon remove the old icon class
                this._removeClass( this.icon, null, this.options.icon );
            }

            // If we are updating the icon add the new icon class
            if ( icon ) {
                this._addClass( this.icon, null, value );
            }

            this._attachIcon( position );

            // If the icon is on top or bottom we need to add the ui-widget-icon-block class and remove
            // the iconSpace if there is one.
            if ( displayBlock ) {
                this._addClass( this.icon, null, "ui-widget-icon-block" );
                if ( this.iconSpace ) {
                    this.iconSpace.remove();
                }
            } else {

                // Position is beginning or end so remove the ui-widget-icon-block class and add the
                // space if it does not exist
                if ( !this.iconSpace ) {
                    this.iconSpace = $( "<span> </span>" );
                    this._addClass( this.iconSpace, "ui-button-icon-space" );
                }
                this._removeClass( this.icon, null, "ui-wiget-icon-block" );
                this._attachIconSpace( position );
            }
        },

        _destroy: function() {
            this.element.removeAttr( "role" );

            if ( this.icon ) {
                this.icon.remove();
            }
            if ( this.iconSpace ) {
                this.iconSpace.remove();
            }
            if ( !this.hasTitle ) {
                this.element.removeAttr( "title" );
            }
        },

        _attachIconSpace: function( iconPosition ) {
            this.icon[ /^(?:end|bottom)/.test( iconPosition ) ? "before" : "after" ]( this.iconSpace );
        },

        _attachIcon: function( iconPosition ) {
            this.element[ /^(?:end|bottom)/.test( iconPosition ) ? "append" : "prepend" ]( this.icon );
        },

        _setOptions: function( options ) {
            var newShowLabel = options.showLabel === undefined ?
                    this.options.showLabel :
                    options.showLabel,
                newIcon = options.icon === undefined ? this.options.icon : options.icon;

            if ( !newShowLabel && !newIcon ) {
                options.showLabel = true;
            }
            this._super( options );
        },

        _setOption: function( key, value ) {
            if ( key === "icon" ) {
                if ( value ) {
                    this._updateIcon( key, value );
                } else if ( this.icon ) {
                    this.icon.remove();
                    if ( this.iconSpace ) {
                        this.iconSpace.remove();
                    }
                }
            }

            if ( key === "iconPosition" ) {
                this._updateIcon( key, value );
            }

            // Make sure we can't end up with a button that has neither text nor icon
            if ( key === "showLabel" ) {
                this._toggleClass( "ui-button-icon-only", null, !value );
                this._updateTooltip();
            }

            if ( key === "label" ) {
                if ( this.isInput ) {
                    this.element.val( value );
                } else {

                    // If there is an icon, append it, else nothing then append the value
                    // this avoids removal of the icon when setting label text
                    this.element.html( value );
                    if ( this.icon ) {
                        this._attachIcon( this.options.iconPosition );
                        this._attachIconSpace( this.options.iconPosition );
                    }
                }
            }

            this._super( key, value );

            if ( key === "disabled" ) {
                this._toggleClass( null, "ui-state-disabled", value );
                this.element[ 0 ].disabled = value;
                if ( value ) {
                    this.element.blur();
                }
            }
        },

        refresh: function() {

            // Make sure to only check disabled if its an element that supports this otherwise
            // check for the disabled class to determine state
            var isDisabled = this.element.is( "input, button" ) ?
                this.element[ 0 ].disabled : this.element.hasClass( "ui-button-disabled" );

            if ( isDisabled !== this.options.disabled ) {
                this._setOptions( { disabled: isDisabled } );
            }

            this._updateTooltip();
        }
    } );

// DEPRECATED
    if ( $.uiBackCompat !== false ) {

        // Text and Icons options
        $.widget( "ui.button", $.ui.button, {
            options: {
                text: true,
                icons: {
                    primary: null,
                    secondary: null
                }
            },

            _create: function() {
                if ( this.options.showLabel && !this.options.text ) {
                    this.options.showLabel = this.options.text;
                }
                if ( !this.options.showLabel && this.options.text ) {
                    this.options.text = this.options.showLabel;
                }
                if ( !this.options.icon && ( this.options.icons.primary ||
                    this.options.icons.secondary ) ) {
                    if ( this.options.icons.primary ) {
                        this.options.icon = this.options.icons.primary;
                    } else {
                        this.options.icon = this.options.icons.secondary;
                        this.options.iconPosition = "end";
                    }
                } else if ( this.options.icon ) {
                    this.options.icons.primary = this.options.icon;
                }
                this._super();
            },

            _setOption: function( key, value ) {
                if ( key === "text" ) {
                    this._super( "showLabel", value );
                    return;
                }
                if ( key === "showLabel" ) {
                    this.options.text = value;
                }
                if ( key === "icon" ) {
                    this.options.icons.primary = value;
                }
                if ( key === "icons" ) {
                    if ( value.primary ) {
                        this._super( "icon", value.primary );
                        this._super( "iconPosition", "beginning" );
                    } else if ( value.secondary ) {
                        this._super( "icon", value.secondary );
                        this._super( "iconPosition", "end" );
                    }
                }
                this._superApply( arguments );
            }
        } );

        $.fn.button = ( function( orig ) {
            return function() {
                if ( !this.length || ( this.length && this[ 0 ].tagName !== "INPUT" ) ||
                    ( this.length && this[ 0 ].tagName === "INPUT" && (
                        this.attr( "type" ) !== "checkbox" && this.attr( "type" ) !== "radio"
                    ) ) ) {
                    return orig.apply( this, arguments );
                }
                if ( !$.ui.checkboxradio ) {
                    $.error( "Checkboxradio widget missing" );
                }
                if ( arguments.length === 0 ) {
                    return this.checkboxradio( {
                        "icon": false
                    } );
                }
                return this.checkboxradio.apply( this, arguments );
            };
        } )( $.fn.button );

        $.fn.buttonset = function() {
            if ( !$.ui.controlgroup ) {
                $.error( "Controlgroup widget missing" );
            }
            if ( arguments[ 0 ] === "option" && arguments[ 1 ] === "items" && arguments[ 2 ] ) {
                return this.controlgroup.apply( this,
                    [ arguments[ 0 ], "items.button", arguments[ 2 ] ] );
            }
            if ( arguments[ 0 ] === "option" && arguments[ 1 ] === "items" ) {
                return this.controlgroup.apply( this, [ arguments[ 0 ], "items.button" ] );
            }
            if ( typeof arguments[ 0 ] === "object" && arguments[ 0 ].items ) {
                arguments[ 0 ].items = {
                    button: arguments[ 0 ].items
                };
            }
            return this.controlgroup.apply( this, arguments );
        };
    }

    var widgetsButton = $.ui.button;


// jscs:disable maximumLineLength
    /* jscs:disable requireCamelCaseOrUpperCaseIdentifiers */
    /*!
     * jQuery UI Datepicker 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Datepicker
//>>group: Widgets
//>>description: Displays a calendar from an input or inline for selecting dates.
//>>docs: http://api.jqueryui.com/datepicker/
//>>demos: http://jqueryui.com/datepicker/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/datepicker.css
//>>css.theme: ../../themes/base/theme.css



    $.extend( $.ui, { datepicker: { version: "1.12.1" } } );

    var datepicker_instActive;

    function datepicker_getZindex( elem ) {
        var position, value;
        while ( elem.length && elem[ 0 ] !== document ) {

            // Ignore z-index if position is set to a value where z-index is ignored by the browser
            // This makes behavior of this function consistent across browsers
            // WebKit always returns auto if the element is positioned
            position = elem.css( "position" );
            if ( position === "absolute" || position === "relative" || position === "fixed" ) {

                // IE returns 0 when zIndex is not specified
                // other browsers return a string
                // we ignore the case of nested elements with an explicit value of 0
                // <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
                value = parseInt( elem.css( "zIndex" ), 10 );
                if ( !isNaN( value ) && value !== 0 ) {
                    return value;
                }
            }
            elem = elem.parent();
        }

        return 0;
    }
    /* Date picker manager.
     Use the singleton instance of this class, $.datepicker, to interact with the date picker.
     Settings for (groups of) date pickers are maintained in an instance object,
     allowing multiple different settings on the same page. */

    function Datepicker() {
        this._curInst = null; // The current instance in use
        this._keyEvent = false; // If the last event was a key event
        this._disabledInputs = []; // List of date picker inputs that have been disabled
        this._datepickerShowing = false; // True if the popup picker is showing , false if not
        this._inDialog = false; // True if showing within a "dialog", false if not
        this._mainDivId = "ui-datepicker-div"; // The ID of the main datepicker division
        this._inlineClass = "ui-datepicker-inline"; // The name of the inline marker class
        this._appendClass = "ui-datepicker-append"; // The name of the append marker class
        this._triggerClass = "ui-datepicker-trigger"; // The name of the trigger marker class
        this._dialogClass = "ui-datepicker-dialog"; // The name of the dialog marker class
        this._disableClass = "ui-datepicker-disabled"; // The name of the disabled covering marker class
        this._unselectableClass = "ui-datepicker-unselectable"; // The name of the unselectable cell marker class
        this._currentClass = "ui-datepicker-current-day"; // The name of the current day marker class
        this._dayOverClass = "ui-datepicker-days-cell-over"; // The name of the day hover marker class
        this.regional = []; // Available regional settings, indexed by language code
        this.regional[ "" ] = { // Default regional settings
            closeText: "Done", // Display text for close link
            prevText: "Prev", // Display text for previous month link
            nextText: "Next", // Display text for next month link
            currentText: "Today", // Display text for current month link
            monthNames: [ "January","February","March","April","May","June",
                "July","August","September","October","November","December" ], // Names of months for drop-down and formatting
            monthNamesShort: [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ], // For formatting
            dayNames: [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ], // For formatting
            dayNamesShort: [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ], // For formatting
            dayNamesMin: [ "Su","Mo","Tu","We","Th","Fr","Sa" ], // Column headings for days starting at Sunday
            weekHeader: "Wk", // Column header for week of the year
            dateFormat: "mm/dd/yy", // See format options on parseDate
            firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
            isRTL: false, // True if right-to-left language, false if left-to-right
            showMonthAfterYear: false, // True if the year select precedes month, false for month then year
            yearSuffix: "" // Additional text to append to the year in the month headers
        };
        this._defaults = { // Global defaults for all the date picker instances
            showOn: "focus", // "focus" for popup on focus,
            // "button" for trigger button, or "both" for either
            showAnim: "fadeIn", // Name of jQuery animation for popup
            showOptions: {}, // Options for enhanced animations
            defaultDate: null, // Used when field is blank: actual date,
            // +/-number for offset from today, null for today
            appendText: "", // Display text following the input box, e.g. showing the format
            buttonText: "...", // Text for trigger button
            buttonImage: "", // URL for trigger button image
            buttonImageOnly: false, // True if the image appears alone, false if it appears on a button
            hideIfNoPrevNext: false, // True to hide next/previous month links
            // if not applicable, false to just disable them
            navigationAsDateFormat: false, // True if date formatting applied to prev/today/next links
            gotoCurrent: false, // True if today link goes back to current selection instead
            changeMonth: false, // True if month can be selected directly, false if only prev/next
            changeYear: false, // True if year can be selected directly, false if only prev/next
            yearRange: "c-10:c+10", // Range of years to display in drop-down,
            // either relative to today's year (-nn:+nn), relative to currently displayed year
            // (c-nn:c+nn), absolute (nnnn:nnnn), or a combination of the above (nnnn:-n)
            showOtherMonths: false, // True to show dates in other months, false to leave blank
            selectOtherMonths: false, // True to allow selection of dates in other months, false for unselectable
            showWeek: false, // True to show week of the year, false to not show it
            calculateWeek: this.iso8601Week, // How to calculate the week of the year,
            // takes a Date and returns the number of the week for it
            shortYearCutoff: "+10", // Short year values < this are in the current century,
            // > this are in the previous century,
            // string value starting with "+" for current year + value
            minDate: null, // The earliest selectable date, or null for no limit
            maxDate: null, // The latest selectable date, or null for no limit
            duration: "fast", // Duration of display/closure
            beforeShowDay: null, // Function that takes a date and returns an array with
            // [0] = true if selectable, false if not, [1] = custom CSS class name(s) or "",
            // [2] = cell title (optional), e.g. $.datepicker.noWeekends
            beforeShow: null, // Function that takes an input field and
            // returns a set of custom settings for the date picker
            onSelect: null, // Define a callback function when a date is selected
            onChangeMonthYear: null, // Define a callback function when the month or year is changed
            onClose: null, // Define a callback function when the datepicker is closed
            numberOfMonths: 1, // Number of months to show at a time
            showCurrentAtPos: 0, // The position in multipe months at which to show the current month (starting at 0)
            stepMonths: 1, // Number of months to step back/forward
            stepBigMonths: 12, // Number of months to step back/forward for the big links
            altField: "", // Selector for an alternate field to store selected dates into
            altFormat: "", // The date format to use for the alternate field
            constrainInput: true, // The input is constrained by the current date format
            showButtonPanel: false, // True to show button panel, false to not show it
            autoSize: false, // True to size the input for the date format, false to leave as is
            disabled: false // The initial disabled state
        };
        $.extend( this._defaults, this.regional[ "" ] );
        this.regional.en = $.extend( true, {}, this.regional[ "" ] );
        this.regional[ "en-US" ] = $.extend( true, {}, this.regional.en );
        this.dpDiv = datepicker_bindHover( $( "<div id='" + this._mainDivId + "' class='ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all'></div>" ) );
    }

    $.extend( Datepicker.prototype, {
        /* Class name added to elements to indicate already configured with a date picker. */
        markerClassName: "hasDatepicker",

        //Keep track of the maximum number of rows displayed (see #7043)
        maxRows: 4,

        // TODO rename to "widget" when switching to widget factory
        _widgetDatepicker: function() {
            return this.dpDiv;
        },

        /* Override the default settings for all instances of the date picker.
         * @param  settings  object - the new settings to use as defaults (anonymous object)
         * @return the manager object
         */
        setDefaults: function( settings ) {
            datepicker_extendRemove( this._defaults, settings || {} );
            return this;
        },

        /* Attach the date picker to a jQuery selection.
         * @param  target	element - the target input field or division or span
         * @param  settings  object - the new settings to use for this date picker instance (anonymous)
         */
        _attachDatepicker: function( target, settings ) {
            var nodeName, inline, inst;
            nodeName = target.nodeName.toLowerCase();
            inline = ( nodeName === "div" || nodeName === "span" );
            if ( !target.id ) {
                this.uuid += 1;
                target.id = "dp" + this.uuid;
            }
            inst = this._newInst( $( target ), inline );
            inst.settings = $.extend( {}, settings || {} );
            if ( nodeName === "input" ) {
                this._connectDatepicker( target, inst );
            } else if ( inline ) {
                this._inlineDatepicker( target, inst );
            }
        },

        /* Create a new instance object. */
        _newInst: function( target, inline ) {
            var id = target[ 0 ].id.replace( /([^A-Za-z0-9_\-])/g, "\\\\$1" ); // escape jQuery meta chars
            return { id: id, input: target, // associated target
                selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection
                drawMonth: 0, drawYear: 0, // month being drawn
                inline: inline, // is datepicker inline or not
                dpDiv: ( !inline ? this.dpDiv : // presentation div
                    datepicker_bindHover( $( "<div class='" + this._inlineClass + " ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all'></div>" ) ) ) };
        },

        /* Attach the date picker to an input field. */
        _connectDatepicker: function( target, inst ) {
            var input = $( target );
            inst.append = $( [] );
            inst.trigger = $( [] );
            if ( input.hasClass( this.markerClassName ) ) {
                return;
            }
            this._attachments( input, inst );
            input.addClass( this.markerClassName ).on( "keydown", this._doKeyDown ).
            on( "keypress", this._doKeyPress ).on( "keyup", this._doKeyUp );
            this._autoSize( inst );
            $.data( target, "datepicker", inst );

            //If disabled option is true, disable the datepicker once it has been attached to the input (see ticket #5665)
            if ( inst.settings.disabled ) {
                this._disableDatepicker( target );
            }
        },

        /* Make attachments based on settings. */
        _attachments: function( input, inst ) {
            var showOn, buttonText, buttonImage,
                appendText = this._get( inst, "appendText" ),
                isRTL = this._get( inst, "isRTL" );

            if ( inst.append ) {
                inst.append.remove();
            }
            if ( appendText ) {
                inst.append = $( "<span class='" + this._appendClass + "'>" + appendText + "</span>" );
                input[ isRTL ? "before" : "after" ]( inst.append );
            }

            input.off( "focus", this._showDatepicker );

            if ( inst.trigger ) {
                inst.trigger.remove();
            }

            showOn = this._get( inst, "showOn" );
            if ( showOn === "focus" || showOn === "both" ) { // pop-up date picker when in the marked field
                input.on( "focus", this._showDatepicker );
            }
            if ( showOn === "button" || showOn === "both" ) { // pop-up date picker when button clicked
                buttonText = this._get( inst, "buttonText" );
                buttonImage = this._get( inst, "buttonImage" );
                inst.trigger = $( this._get( inst, "buttonImageOnly" ) ?
                    $( "<img/>" ).addClass( this._triggerClass ).
                    attr( { src: buttonImage, alt: buttonText, title: buttonText } ) :
                    $( "<button type='button'></button>" ).addClass( this._triggerClass ).
                    html( !buttonImage ? buttonText : $( "<img/>" ).attr(
                        { src:buttonImage, alt:buttonText, title:buttonText } ) ) );
                input[ isRTL ? "before" : "after" ]( inst.trigger );
                inst.trigger.on( "click", function() {
                    if ( $.datepicker._datepickerShowing && $.datepicker._lastInput === input[ 0 ] ) {
                        $.datepicker._hideDatepicker();
                    } else if ( $.datepicker._datepickerShowing && $.datepicker._lastInput !== input[ 0 ] ) {
                        $.datepicker._hideDatepicker();
                        $.datepicker._showDatepicker( input[ 0 ] );
                    } else {
                        $.datepicker._showDatepicker( input[ 0 ] );
                    }
                    return false;
                } );
            }
        },

        /* Apply the maximum length for the date format. */
        _autoSize: function( inst ) {
            if ( this._get( inst, "autoSize" ) && !inst.inline ) {
                var findMax, max, maxI, i,
                    date = new Date( 2009, 12 - 1, 20 ), // Ensure double digits
                    dateFormat = this._get( inst, "dateFormat" );

                if ( dateFormat.match( /[DM]/ ) ) {
                    findMax = function( names ) {
                        max = 0;
                        maxI = 0;
                        for ( i = 0; i < names.length; i++ ) {
                            if ( names[ i ].length > max ) {
                                max = names[ i ].length;
                                maxI = i;
                            }
                        }
                        return maxI;
                    };
                    date.setMonth( findMax( this._get( inst, ( dateFormat.match( /MM/ ) ?
                        "monthNames" : "monthNamesShort" ) ) ) );
                    date.setDate( findMax( this._get( inst, ( dateFormat.match( /DD/ ) ?
                            "dayNames" : "dayNamesShort" ) ) ) + 20 - date.getDay() );
                }
                inst.input.attr( "size", this._formatDate( inst, date ).length );
            }
        },

        /* Attach an inline date picker to a div. */
        _inlineDatepicker: function( target, inst ) {
            var divSpan = $( target );
            if ( divSpan.hasClass( this.markerClassName ) ) {
                return;
            }
            divSpan.addClass( this.markerClassName ).append( inst.dpDiv );
            $.data( target, "datepicker", inst );
            this._setDate( inst, this._getDefaultDate( inst ), true );
            this._updateDatepicker( inst );
            this._updateAlternate( inst );

            //If disabled option is true, disable the datepicker before showing it (see ticket #5665)
            if ( inst.settings.disabled ) {
                this._disableDatepicker( target );
            }

            // Set display:block in place of inst.dpDiv.show() which won't work on disconnected elements
            // http://bugs.jqueryui.com/ticket/7552 - A Datepicker created on a detached div has zero height
            inst.dpDiv.css( "display", "block" );
        },

        /* Pop-up the date picker in a "dialog" box.
         * @param  input element - ignored
         * @param  date	string or Date - the initial date to display
         * @param  onSelect  function - the function to call when a date is selected
         * @param  settings  object - update the dialog date picker instance's settings (anonymous object)
         * @param  pos int[2] - coordinates for the dialog's position within the screen or
         *					event - with x/y coordinates or
         *					leave empty for default (screen centre)
         * @return the manager object
         */
        _dialogDatepicker: function( input, date, onSelect, settings, pos ) {
            var id, browserWidth, browserHeight, scrollX, scrollY,
                inst = this._dialogInst; // internal instance

            if ( !inst ) {
                this.uuid += 1;
                id = "dp" + this.uuid;
                this._dialogInput = $( "<input type='text' id='" + id +
                    "' style='position: absolute; top: -100px; width: 0px;'/>" );
                this._dialogInput.on( "keydown", this._doKeyDown );
                $( "body" ).append( this._dialogInput );
                inst = this._dialogInst = this._newInst( this._dialogInput, false );
                inst.settings = {};
                $.data( this._dialogInput[ 0 ], "datepicker", inst );
            }
            datepicker_extendRemove( inst.settings, settings || {} );
            date = ( date && date.constructor === Date ? this._formatDate( inst, date ) : date );
            this._dialogInput.val( date );

            this._pos = ( pos ? ( pos.length ? pos : [ pos.pageX, pos.pageY ] ) : null );
            if ( !this._pos ) {
                browserWidth = document.documentElement.clientWidth;
                browserHeight = document.documentElement.clientHeight;
                scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
                scrollY = document.documentElement.scrollTop || document.body.scrollTop;
                this._pos = // should use actual width/height below
                    [ ( browserWidth / 2 ) - 100 + scrollX, ( browserHeight / 2 ) - 150 + scrollY ];
            }

            // Move input on screen for focus, but hidden behind dialog
            this._dialogInput.css( "left", ( this._pos[ 0 ] + 20 ) + "px" ).css( "top", this._pos[ 1 ] + "px" );
            inst.settings.onSelect = onSelect;
            this._inDialog = true;
            this.dpDiv.addClass( this._dialogClass );
            this._showDatepicker( this._dialogInput[ 0 ] );
            if ( $.blockUI ) {
                $.blockUI( this.dpDiv );
            }
            $.data( this._dialogInput[ 0 ], "datepicker", inst );
            return this;
        },

        /* Detach a datepicker from its control.
         * @param  target	element - the target input field or division or span
         */
        _destroyDatepicker: function( target ) {
            var nodeName,
                $target = $( target ),
                inst = $.data( target, "datepicker" );

            if ( !$target.hasClass( this.markerClassName ) ) {
                return;
            }

            nodeName = target.nodeName.toLowerCase();
            $.removeData( target, "datepicker" );
            if ( nodeName === "input" ) {
                inst.append.remove();
                inst.trigger.remove();
                $target.removeClass( this.markerClassName ).
                off( "focus", this._showDatepicker ).
                off( "keydown", this._doKeyDown ).
                off( "keypress", this._doKeyPress ).
                off( "keyup", this._doKeyUp );
            } else if ( nodeName === "div" || nodeName === "span" ) {
                $target.removeClass( this.markerClassName ).empty();
            }

            if ( datepicker_instActive === inst ) {
                datepicker_instActive = null;
            }
        },

        /* Enable the date picker to a jQuery selection.
         * @param  target	element - the target input field or division or span
         */
        _enableDatepicker: function( target ) {
            var nodeName, inline,
                $target = $( target ),
                inst = $.data( target, "datepicker" );

            if ( !$target.hasClass( this.markerClassName ) ) {
                return;
            }

            nodeName = target.nodeName.toLowerCase();
            if ( nodeName === "input" ) {
                target.disabled = false;
                inst.trigger.filter( "button" ).
                each( function() { this.disabled = false; } ).end().
                filter( "img" ).css( { opacity: "1.0", cursor: "" } );
            } else if ( nodeName === "div" || nodeName === "span" ) {
                inline = $target.children( "." + this._inlineClass );
                inline.children().removeClass( "ui-state-disabled" );
                inline.find( "select.ui-datepicker-month, select.ui-datepicker-year" ).
                prop( "disabled", false );
            }
            this._disabledInputs = $.map( this._disabledInputs,
                function( value ) { return ( value === target ? null : value ); } ); // delete entry
        },

        /* Disable the date picker to a jQuery selection.
         * @param  target	element - the target input field or division or span
         */
        _disableDatepicker: function( target ) {
            var nodeName, inline,
                $target = $( target ),
                inst = $.data( target, "datepicker" );

            if ( !$target.hasClass( this.markerClassName ) ) {
                return;
            }

            nodeName = target.nodeName.toLowerCase();
            if ( nodeName === "input" ) {
                target.disabled = true;
                inst.trigger.filter( "button" ).
                each( function() { this.disabled = true; } ).end().
                filter( "img" ).css( { opacity: "0.5", cursor: "default" } );
            } else if ( nodeName === "div" || nodeName === "span" ) {
                inline = $target.children( "." + this._inlineClass );
                inline.children().addClass( "ui-state-disabled" );
                inline.find( "select.ui-datepicker-month, select.ui-datepicker-year" ).
                prop( "disabled", true );
            }
            this._disabledInputs = $.map( this._disabledInputs,
                function( value ) { return ( value === target ? null : value ); } ); // delete entry
            this._disabledInputs[ this._disabledInputs.length ] = target;
        },

        /* Is the first field in a jQuery collection disabled as a datepicker?
         * @param  target	element - the target input field or division or span
         * @return boolean - true if disabled, false if enabled
         */
        _isDisabledDatepicker: function( target ) {
            if ( !target ) {
                return false;
            }
            for ( var i = 0; i < this._disabledInputs.length; i++ ) {
                if ( this._disabledInputs[ i ] === target ) {
                    return true;
                }
            }
            return false;
        },

        /* Retrieve the instance data for the target control.
         * @param  target  element - the target input field or division or span
         * @return  object - the associated instance data
         * @throws  error if a jQuery problem getting data
         */
        _getInst: function( target ) {
            try {
                return $.data( target, "datepicker" );
            }
            catch ( err ) {
                throw "Missing instance data for this datepicker";
            }
        },

        /* Update or retrieve the settings for a date picker attached to an input field or division.
         * @param  target  element - the target input field or division or span
         * @param  name	object - the new settings to update or
         *				string - the name of the setting to change or retrieve,
         *				when retrieving also "all" for all instance settings or
         *				"defaults" for all global defaults
         * @param  value   any - the new value for the setting
         *				(omit if above is an object or to retrieve a value)
         */
        _optionDatepicker: function( target, name, value ) {
            var settings, date, minDate, maxDate,
                inst = this._getInst( target );

            if ( arguments.length === 2 && typeof name === "string" ) {
                return ( name === "defaults" ? $.extend( {}, $.datepicker._defaults ) :
                    ( inst ? ( name === "all" ? $.extend( {}, inst.settings ) :
                        this._get( inst, name ) ) : null ) );
            }

            settings = name || {};
            if ( typeof name === "string" ) {
                settings = {};
                settings[ name ] = value;
            }

            if ( inst ) {
                if ( this._curInst === inst ) {
                    this._hideDatepicker();
                }

                date = this._getDateDatepicker( target, true );
                minDate = this._getMinMaxDate( inst, "min" );
                maxDate = this._getMinMaxDate( inst, "max" );
                datepicker_extendRemove( inst.settings, settings );

                // reformat the old minDate/maxDate values if dateFormat changes and a new minDate/maxDate isn't provided
                if ( minDate !== null && settings.dateFormat !== undefined && settings.minDate === undefined ) {
                    inst.settings.minDate = this._formatDate( inst, minDate );
                }
                if ( maxDate !== null && settings.dateFormat !== undefined && settings.maxDate === undefined ) {
                    inst.settings.maxDate = this._formatDate( inst, maxDate );
                }
                if ( "disabled" in settings ) {
                    if ( settings.disabled ) {
                        this._disableDatepicker( target );
                    } else {
                        this._enableDatepicker( target );
                    }
                }
                this._attachments( $( target ), inst );
                this._autoSize( inst );
                this._setDate( inst, date );
                this._updateAlternate( inst );
                this._updateDatepicker( inst );
            }
        },

        // Change method deprecated
        _changeDatepicker: function( target, name, value ) {
            this._optionDatepicker( target, name, value );
        },

        /* Redraw the date picker attached to an input field or division.
         * @param  target  element - the target input field or division or span
         */
        _refreshDatepicker: function( target ) {
            var inst = this._getInst( target );
            if ( inst ) {
                this._updateDatepicker( inst );
            }
        },

        /* Set the dates for a jQuery selection.
         * @param  target element - the target input field or division or span
         * @param  date	Date - the new date
         */
        _setDateDatepicker: function( target, date ) {
            var inst = this._getInst( target );
            if ( inst ) {
                this._setDate( inst, date );
                this._updateDatepicker( inst );
                this._updateAlternate( inst );
            }
        },

        /* Get the date(s) for the first entry in a jQuery selection.
         * @param  target element - the target input field or division or span
         * @param  noDefault boolean - true if no default date is to be used
         * @return Date - the current date
         */
        _getDateDatepicker: function( target, noDefault ) {
            var inst = this._getInst( target );
            if ( inst && !inst.inline ) {
                this._setDateFromField( inst, noDefault );
            }
            return ( inst ? this._getDate( inst ) : null );
        },

        /* Handle keystrokes. */
        _doKeyDown: function( event ) {
            var onSelect, dateStr, sel,
                inst = $.datepicker._getInst( event.target ),
                handled = true,
                isRTL = inst.dpDiv.is( ".ui-datepicker-rtl" );

            inst._keyEvent = true;
            if ( $.datepicker._datepickerShowing ) {
                switch ( event.keyCode ) {
                    case 9: $.datepicker._hideDatepicker();
                        handled = false;
                        break; // hide on tab out
                    case 13: sel = $( "td." + $.datepicker._dayOverClass + ":not(." +
                        $.datepicker._currentClass + ")", inst.dpDiv );
                        if ( sel[ 0 ] ) {
                            $.datepicker._selectDay( event.target, inst.selectedMonth, inst.selectedYear, sel[ 0 ] );
                        }

                        onSelect = $.datepicker._get( inst, "onSelect" );
                        if ( onSelect ) {
                            dateStr = $.datepicker._formatDate( inst );

                            // Trigger custom callback
                            onSelect.apply( ( inst.input ? inst.input[ 0 ] : null ), [ dateStr, inst ] );
                        } else {
                            $.datepicker._hideDatepicker();
                        }

                        return false; // don't submit the form
                    case 27: $.datepicker._hideDatepicker();
                        break; // hide on escape
                    case 33: $.datepicker._adjustDate( event.target, ( event.ctrlKey ?
                        -$.datepicker._get( inst, "stepBigMonths" ) :
                        -$.datepicker._get( inst, "stepMonths" ) ), "M" );
                        break; // previous month/year on page up/+ ctrl
                    case 34: $.datepicker._adjustDate( event.target, ( event.ctrlKey ?
                        +$.datepicker._get( inst, "stepBigMonths" ) :
                        +$.datepicker._get( inst, "stepMonths" ) ), "M" );
                        break; // next month/year on page down/+ ctrl
                    case 35: if ( event.ctrlKey || event.metaKey ) {
                        $.datepicker._clearDate( event.target );
                    }
                        handled = event.ctrlKey || event.metaKey;
                        break; // clear on ctrl or command +end
                    case 36: if ( event.ctrlKey || event.metaKey ) {
                        $.datepicker._gotoToday( event.target );
                    }
                        handled = event.ctrlKey || event.metaKey;
                        break; // current on ctrl or command +home
                    case 37: if ( event.ctrlKey || event.metaKey ) {
                        $.datepicker._adjustDate( event.target, ( isRTL ? +1 : -1 ), "D" );
                    }
                        handled = event.ctrlKey || event.metaKey;

                        // -1 day on ctrl or command +left
                        if ( event.originalEvent.altKey ) {
                            $.datepicker._adjustDate( event.target, ( event.ctrlKey ?
                                -$.datepicker._get( inst, "stepBigMonths" ) :
                                -$.datepicker._get( inst, "stepMonths" ) ), "M" );
                        }

                        // next month/year on alt +left on Mac
                        break;
                    case 38: if ( event.ctrlKey || event.metaKey ) {
                        $.datepicker._adjustDate( event.target, -7, "D" );
                    }
                        handled = event.ctrlKey || event.metaKey;
                        break; // -1 week on ctrl or command +up
                    case 39: if ( event.ctrlKey || event.metaKey ) {
                        $.datepicker._adjustDate( event.target, ( isRTL ? -1 : +1 ), "D" );
                    }
                        handled = event.ctrlKey || event.metaKey;

                        // +1 day on ctrl or command +right
                        if ( event.originalEvent.altKey ) {
                            $.datepicker._adjustDate( event.target, ( event.ctrlKey ?
                                +$.datepicker._get( inst, "stepBigMonths" ) :
                                +$.datepicker._get( inst, "stepMonths" ) ), "M" );
                        }

                        // next month/year on alt +right
                        break;
                    case 40: if ( event.ctrlKey || event.metaKey ) {
                        $.datepicker._adjustDate( event.target, +7, "D" );
                    }
                        handled = event.ctrlKey || event.metaKey;
                        break; // +1 week on ctrl or command +down
                    default: handled = false;
                }
            } else if ( event.keyCode === 36 && event.ctrlKey ) { // display the date picker on ctrl+home
                $.datepicker._showDatepicker( this );
            } else {
                handled = false;
            }

            if ( handled ) {
                event.preventDefault();
                event.stopPropagation();
            }
        },

        /* Filter entered characters - based on date format. */
        _doKeyPress: function( event ) {
            var chars, chr,
                inst = $.datepicker._getInst( event.target );

            if ( $.datepicker._get( inst, "constrainInput" ) ) {
                chars = $.datepicker._possibleChars( $.datepicker._get( inst, "dateFormat" ) );
                chr = String.fromCharCode( event.charCode == null ? event.keyCode : event.charCode );
                return event.ctrlKey || event.metaKey || ( chr < " " || !chars || chars.indexOf( chr ) > -1 );
            }
        },

        /* Synchronise manual entry and field/alternate field. */
        _doKeyUp: function( event ) {
            var date,
                inst = $.datepicker._getInst( event.target );

            if ( inst.input.val() !== inst.lastVal ) {
                try {
                    date = $.datepicker.parseDate( $.datepicker._get( inst, "dateFormat" ),
                        ( inst.input ? inst.input.val() : null ),
                        $.datepicker._getFormatConfig( inst ) );

                    if ( date ) { // only if valid
                        $.datepicker._setDateFromField( inst );
                        $.datepicker._updateAlternate( inst );
                        $.datepicker._updateDatepicker( inst );
                    }
                }
                catch ( err ) {
                }
            }
            return true;
        },

        /* Pop-up the date picker for a given input field.
         * If false returned from beforeShow event handler do not show.
         * @param  input  element - the input field attached to the date picker or
         *					event - if triggered by focus
         */
        _showDatepicker: function( input ) {
            input = input.target || input;
            if ( input.nodeName.toLowerCase() !== "input" ) { // find from button/image trigger
                input = $( "input", input.parentNode )[ 0 ];
            }

            if ( $.datepicker._isDisabledDatepicker( input ) || $.datepicker._lastInput === input ) { // already here
                return;
            }

            var inst, beforeShow, beforeShowSettings, isFixed,
                offset, showAnim, duration;

            inst = $.datepicker._getInst( input );
            if ( $.datepicker._curInst && $.datepicker._curInst !== inst ) {
                $.datepicker._curInst.dpDiv.stop( true, true );
                if ( inst && $.datepicker._datepickerShowing ) {
                    $.datepicker._hideDatepicker( $.datepicker._curInst.input[ 0 ] );
                }
            }

            beforeShow = $.datepicker._get( inst, "beforeShow" );
            beforeShowSettings = beforeShow ? beforeShow.apply( input, [ input, inst ] ) : {};
            if ( beforeShowSettings === false ) {
                return;
            }
            datepicker_extendRemove( inst.settings, beforeShowSettings );

            inst.lastVal = null;
            $.datepicker._lastInput = input;
            $.datepicker._setDateFromField( inst );

            if ( $.datepicker._inDialog ) { // hide cursor
                input.value = "";
            }
            if ( !$.datepicker._pos ) { // position below input
                $.datepicker._pos = $.datepicker._findPos( input );
                $.datepicker._pos[ 1 ] += input.offsetHeight; // add the height
            }

            isFixed = false;
            $( input ).parents().each( function() {
                isFixed |= $( this ).css( "position" ) === "fixed";
                return !isFixed;
            } );

            offset = { left: $.datepicker._pos[ 0 ], top: $.datepicker._pos[ 1 ] };
            $.datepicker._pos = null;

            //to avoid flashes on Firefox
            inst.dpDiv.empty();

            // determine sizing offscreen
            inst.dpDiv.css( { position: "absolute", display: "block", top: "-1000px" } );
            $.datepicker._updateDatepicker( inst );

            // fix width for dynamic number of date pickers
            // and adjust position before showing
            offset = $.datepicker._checkOffset( inst, offset, isFixed );
            inst.dpDiv.css( { position: ( $.datepicker._inDialog && $.blockUI ?
                "static" : ( isFixed ? "fixed" : "absolute" ) ), display: "none",
                left: offset.left + "px", top: offset.top + "px" } );

            if ( !inst.inline ) {
                showAnim = $.datepicker._get( inst, "showAnim" );
                duration = $.datepicker._get( inst, "duration" );
                inst.dpDiv.css( "z-index", datepicker_getZindex( $( input ) ) + 1 );
                $.datepicker._datepickerShowing = true;

                if ( $.effects && $.effects.effect[ showAnim ] ) {
                    inst.dpDiv.show( showAnim, $.datepicker._get( inst, "showOptions" ), duration );
                } else {
                    inst.dpDiv[ showAnim || "show" ]( showAnim ? duration : null );
                }

                if ( $.datepicker._shouldFocusInput( inst ) ) {
                    inst.input.trigger( "focus" );
                }

                $.datepicker._curInst = inst;
            }
        },

        /* Generate the date picker content. */
        _updateDatepicker: function( inst ) {
            this.maxRows = 4; //Reset the max number of rows being displayed (see #7043)
            datepicker_instActive = inst; // for delegate hover events
            inst.dpDiv.empty().append( this._generateHTML( inst ) );
            this._attachHandlers( inst );

            var origyearshtml,
                numMonths = this._getNumberOfMonths( inst ),
                cols = numMonths[ 1 ],
                width = 17,
                activeCell = inst.dpDiv.find( "." + this._dayOverClass + " a" );

            if ( activeCell.length > 0 ) {
                datepicker_handleMouseover.apply( activeCell.get( 0 ) );
            }

            inst.dpDiv.removeClass( "ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4" ).width( "" );
            if ( cols > 1 ) {
                inst.dpDiv.addClass( "ui-datepicker-multi-" + cols ).css( "width", ( width * cols ) + "em" );
            }
            inst.dpDiv[ ( numMonths[ 0 ] !== 1 || numMonths[ 1 ] !== 1 ? "add" : "remove" ) +
            "Class" ]( "ui-datepicker-multi" );
            inst.dpDiv[ ( this._get( inst, "isRTL" ) ? "add" : "remove" ) +
            "Class" ]( "ui-datepicker-rtl" );

            if ( inst === $.datepicker._curInst && $.datepicker._datepickerShowing && $.datepicker._shouldFocusInput( inst ) ) {
                inst.input.trigger( "focus" );
            }

            // Deffered render of the years select (to avoid flashes on Firefox)
            if ( inst.yearshtml ) {
                origyearshtml = inst.yearshtml;
                setTimeout( function() {

                    //assure that inst.yearshtml didn't change.
                    if ( origyearshtml === inst.yearshtml && inst.yearshtml ) {
                        inst.dpDiv.find( "select.ui-datepicker-year:first" ).replaceWith( inst.yearshtml );
                    }
                    origyearshtml = inst.yearshtml = null;
                }, 0 );
            }
        },

        // #6694 - don't focus the input if it's already focused
        // this breaks the change event in IE
        // Support: IE and jQuery <1.9
        _shouldFocusInput: function( inst ) {
            return inst.input && inst.input.is( ":visible" ) && !inst.input.is( ":disabled" ) && !inst.input.is( ":focus" );
        },

        /* Check positioning to remain on screen. */
        _checkOffset: function( inst, offset, isFixed ) {
            var dpWidth = inst.dpDiv.outerWidth(),
                dpHeight = inst.dpDiv.outerHeight(),
                inputWidth = inst.input ? inst.input.outerWidth() : 0,
                inputHeight = inst.input ? inst.input.outerHeight() : 0,
                viewWidth = document.documentElement.clientWidth + ( isFixed ? 0 : $( document ).scrollLeft() ),
                viewHeight = document.documentElement.clientHeight + ( isFixed ? 0 : $( document ).scrollTop() );

            offset.left -= ( this._get( inst, "isRTL" ) ? ( dpWidth - inputWidth ) : 0 );
            offset.left -= ( isFixed && offset.left === inst.input.offset().left ) ? $( document ).scrollLeft() : 0;
            offset.top -= ( isFixed && offset.top === ( inst.input.offset().top + inputHeight ) ) ? $( document ).scrollTop() : 0;

            // Now check if datepicker is showing outside window viewport - move to a better place if so.
            offset.left -= Math.min( offset.left, ( offset.left + dpWidth > viewWidth && viewWidth > dpWidth ) ?
                Math.abs( offset.left + dpWidth - viewWidth ) : 0 );
            offset.top -= Math.min( offset.top, ( offset.top + dpHeight > viewHeight && viewHeight > dpHeight ) ?
                Math.abs( dpHeight + inputHeight ) : 0 );

            return offset;
        },

        /* Find an object's position on the screen. */
        _findPos: function( obj ) {
            var position,
                inst = this._getInst( obj ),
                isRTL = this._get( inst, "isRTL" );

            while ( obj && ( obj.type === "hidden" || obj.nodeType !== 1 || $.expr.filters.hidden( obj ) ) ) {
                obj = obj[ isRTL ? "previousSibling" : "nextSibling" ];
            }

            position = $( obj ).offset();
            return [ position.left, position.top ];
        },

        /* Hide the date picker from view.
         * @param  input  element - the input field attached to the date picker
         */
        _hideDatepicker: function( input ) {
            var showAnim, duration, postProcess, onClose,
                inst = this._curInst;

            if ( !inst || ( input && inst !== $.data( input, "datepicker" ) ) ) {
                return;
            }

            if ( this._datepickerShowing ) {
                showAnim = this._get( inst, "showAnim" );
                duration = this._get( inst, "duration" );
                postProcess = function() {
                    $.datepicker._tidyDialog( inst );
                };

                // DEPRECATED: after BC for 1.8.x $.effects[ showAnim ] is not needed
                if ( $.effects && ( $.effects.effect[ showAnim ] || $.effects[ showAnim ] ) ) {
                    inst.dpDiv.hide( showAnim, $.datepicker._get( inst, "showOptions" ), duration, postProcess );
                } else {
                    inst.dpDiv[ ( showAnim === "slideDown" ? "slideUp" :
                        ( showAnim === "fadeIn" ? "fadeOut" : "hide" ) ) ]( ( showAnim ? duration : null ), postProcess );
                }

                if ( !showAnim ) {
                    postProcess();
                }
                this._datepickerShowing = false;

                onClose = this._get( inst, "onClose" );
                if ( onClose ) {
                    onClose.apply( ( inst.input ? inst.input[ 0 ] : null ), [ ( inst.input ? inst.input.val() : "" ), inst ] );
                }

                this._lastInput = null;
                if ( this._inDialog ) {
                    this._dialogInput.css( { position: "absolute", left: "0", top: "-100px" } );
                    if ( $.blockUI ) {
                        $.unblockUI();
                        $( "body" ).append( this.dpDiv );
                    }
                }
                this._inDialog = false;
            }
        },

        /* Tidy up after a dialog display. */
        _tidyDialog: function( inst ) {
            inst.dpDiv.removeClass( this._dialogClass ).off( ".ui-datepicker-calendar" );
        },

        /* Close date picker if clicked elsewhere. */
        _checkExternalClick: function( event ) {
            if ( !$.datepicker._curInst ) {
                return;
            }

            var $target = $( event.target ),
                inst = $.datepicker._getInst( $target[ 0 ] );

            if ( ( ( $target[ 0 ].id !== $.datepicker._mainDivId &&
                $target.parents( "#" + $.datepicker._mainDivId ).length === 0 &&
                !$target.hasClass( $.datepicker.markerClassName ) &&
                !$target.closest( "." + $.datepicker._triggerClass ).length &&
                $.datepicker._datepickerShowing && !( $.datepicker._inDialog && $.blockUI ) ) ) ||
                ( $target.hasClass( $.datepicker.markerClassName ) && $.datepicker._curInst !== inst ) ) {
                $.datepicker._hideDatepicker();
            }
        },

        /* Adjust one of the date sub-fields. */
        _adjustDate: function( id, offset, period ) {
            var target = $( id ),
                inst = this._getInst( target[ 0 ] );

            if ( this._isDisabledDatepicker( target[ 0 ] ) ) {
                return;
            }
            this._adjustInstDate( inst, offset +
                ( period === "M" ? this._get( inst, "showCurrentAtPos" ) : 0 ), // undo positioning
                period );
            this._updateDatepicker( inst );
        },

        /* Action for current link. */
        _gotoToday: function( id ) {
            var date,
                target = $( id ),
                inst = this._getInst( target[ 0 ] );

            if ( this._get( inst, "gotoCurrent" ) && inst.currentDay ) {
                inst.selectedDay = inst.currentDay;
                inst.drawMonth = inst.selectedMonth = inst.currentMonth;
                inst.drawYear = inst.selectedYear = inst.currentYear;
            } else {
                date = new Date();
                inst.selectedDay = date.getDate();
                inst.drawMonth = inst.selectedMonth = date.getMonth();
                inst.drawYear = inst.selectedYear = date.getFullYear();
            }
            this._notifyChange( inst );
            this._adjustDate( target );
        },

        /* Action for selecting a new month/year. */
        _selectMonthYear: function( id, select, period ) {
            var target = $( id ),
                inst = this._getInst( target[ 0 ] );

            inst[ "selected" + ( period === "M" ? "Month" : "Year" ) ] =
                inst[ "draw" + ( period === "M" ? "Month" : "Year" ) ] =
                    parseInt( select.options[ select.selectedIndex ].value, 10 );

            this._notifyChange( inst );
            this._adjustDate( target );
        },

        /* Action for selecting a day. */
        _selectDay: function( id, month, year, td ) {
            var inst,
                target = $( id );

            if ( $( td ).hasClass( this._unselectableClass ) || this._isDisabledDatepicker( target[ 0 ] ) ) {
                return;
            }

            inst = this._getInst( target[ 0 ] );
            inst.selectedDay = inst.currentDay = $( "a", td ).html();
            inst.selectedMonth = inst.currentMonth = month;
            inst.selectedYear = inst.currentYear = year;
            this._selectDate( id, this._formatDate( inst,
                inst.currentDay, inst.currentMonth, inst.currentYear ) );
        },

        /* Erase the input field and hide the date picker. */
        _clearDate: function( id ) {
            var target = $( id );
            this._selectDate( target, "" );
        },

        /* Update the input field with the selected date. */
        _selectDate: function( id, dateStr ) {
            var onSelect,
                target = $( id ),
                inst = this._getInst( target[ 0 ] );

            dateStr = ( dateStr != null ? dateStr : this._formatDate( inst ) );
            if ( inst.input ) {
                inst.input.val( dateStr );
            }
            this._updateAlternate( inst );

            onSelect = this._get( inst, "onSelect" );
            if ( onSelect ) {
                onSelect.apply( ( inst.input ? inst.input[ 0 ] : null ), [ dateStr, inst ] );  // trigger custom callback
            } else if ( inst.input ) {
                inst.input.trigger( "change" ); // fire the change event
            }

            if ( inst.inline ) {
                this._updateDatepicker( inst );
            } else {
                this._hideDatepicker();
                this._lastInput = inst.input[ 0 ];
                if ( typeof( inst.input[ 0 ] ) !== "object" ) {
                    inst.input.trigger( "focus" ); // restore focus
                }
                this._lastInput = null;
            }
        },

        /* Update any alternate field to synchronise with the main field. */
        _updateAlternate: function( inst ) {
            var altFormat, date, dateStr,
                altField = this._get( inst, "altField" );

            if ( altField ) { // update alternate field too
                altFormat = this._get( inst, "altFormat" ) || this._get( inst, "dateFormat" );
                date = this._getDate( inst );
                dateStr = this.formatDate( altFormat, date, this._getFormatConfig( inst ) );
                $( altField ).val( dateStr );
            }
        },

        /* Set as beforeShowDay function to prevent selection of weekends.
         * @param  date  Date - the date to customise
         * @return [boolean, string] - is this date selectable?, what is its CSS class?
         */
        noWeekends: function( date ) {
            var day = date.getDay();
            return [ ( day > 0 && day < 6 ), "" ];
        },

        /* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
         * @param  date  Date - the date to get the week for
         * @return  number - the number of the week within the year that contains this date
         */
        iso8601Week: function( date ) {
            var time,
                checkDate = new Date( date.getTime() );

            // Find Thursday of this week starting on Monday
            checkDate.setDate( checkDate.getDate() + 4 - ( checkDate.getDay() || 7 ) );

            time = checkDate.getTime();
            checkDate.setMonth( 0 ); // Compare with Jan 1
            checkDate.setDate( 1 );
            return Math.floor( Math.round( ( time - checkDate ) / 86400000 ) / 7 ) + 1;
        },

        /* Parse a string value into a date object.
         * See formatDate below for the possible formats.
         *
         * @param  format string - the expected format of the date
         * @param  value string - the date in the above format
         * @param  settings Object - attributes include:
         *					shortYearCutoff  number - the cutoff year for determining the century (optional)
         *					dayNamesShort	string[7] - abbreviated names of the days from Sunday (optional)
         *					dayNames		string[7] - names of the days from Sunday (optional)
         *					monthNamesShort string[12] - abbreviated names of the months (optional)
         *					monthNames		string[12] - names of the months (optional)
         * @return  Date - the extracted date value or null if value is blank
         */
        parseDate: function( format, value, settings ) {
            if ( format == null || value == null ) {
                throw "Invalid arguments";
            }

            value = ( typeof value === "object" ? value.toString() : value + "" );
            if ( value === "" ) {
                return null;
            }

            var iFormat, dim, extra,
                iValue = 0,
                shortYearCutoffTemp = ( settings ? settings.shortYearCutoff : null ) || this._defaults.shortYearCutoff,
                shortYearCutoff = ( typeof shortYearCutoffTemp !== "string" ? shortYearCutoffTemp :
                    new Date().getFullYear() % 100 + parseInt( shortYearCutoffTemp, 10 ) ),
                dayNamesShort = ( settings ? settings.dayNamesShort : null ) || this._defaults.dayNamesShort,
                dayNames = ( settings ? settings.dayNames : null ) || this._defaults.dayNames,
                monthNamesShort = ( settings ? settings.monthNamesShort : null ) || this._defaults.monthNamesShort,
                monthNames = ( settings ? settings.monthNames : null ) || this._defaults.monthNames,
                year = -1,
                month = -1,
                day = -1,
                doy = -1,
                literal = false,
                date,

                // Check whether a format character is doubled
                lookAhead = function( match ) {
                    var matches = ( iFormat + 1 < format.length && format.charAt( iFormat + 1 ) === match );
                    if ( matches ) {
                        iFormat++;
                    }
                    return matches;
                },

                // Extract a number from the string value
                getNumber = function( match ) {
                    var isDoubled = lookAhead( match ),
                        size = ( match === "@" ? 14 : ( match === "!" ? 20 :
                            ( match === "y" && isDoubled ? 4 : ( match === "o" ? 3 : 2 ) ) ) ),
                        minSize = ( match === "y" ? size : 1 ),
                        digits = new RegExp( "^\\d{" + minSize + "," + size + "}" ),
                        num = value.substring( iValue ).match( digits );
                    if ( !num ) {
                        throw "Missing number at position " + iValue;
                    }
                    iValue += num[ 0 ].length;
                    return parseInt( num[ 0 ], 10 );
                },

                // Extract a name from the string value and convert to an index
                getName = function( match, shortNames, longNames ) {
                    var index = -1,
                        names = $.map( lookAhead( match ) ? longNames : shortNames, function( v, k ) {
                            return [ [ k, v ] ];
                        } ).sort( function( a, b ) {
                            return -( a[ 1 ].length - b[ 1 ].length );
                        } );

                    $.each( names, function( i, pair ) {
                        var name = pair[ 1 ];
                        if ( value.substr( iValue, name.length ).toLowerCase() === name.toLowerCase() ) {
                            index = pair[ 0 ];
                            iValue += name.length;
                            return false;
                        }
                    } );
                    if ( index !== -1 ) {
                        return index + 1;
                    } else {
                        throw "Unknown name at position " + iValue;
                    }
                },

                // Confirm that a literal character matches the string value
                checkLiteral = function() {
                    if ( value.charAt( iValue ) !== format.charAt( iFormat ) ) {
                        throw "Unexpected literal at position " + iValue;
                    }
                    iValue++;
                };

            for ( iFormat = 0; iFormat < format.length; iFormat++ ) {
                if ( literal ) {
                    if ( format.charAt( iFormat ) === "'" && !lookAhead( "'" ) ) {
                        literal = false;
                    } else {
                        checkLiteral();
                    }
                } else {
                    switch ( format.charAt( iFormat ) ) {
                        case "d":
                            day = getNumber( "d" );
                            break;
                        case "D":
                            getName( "D", dayNamesShort, dayNames );
                            break;
                        case "o":
                            doy = getNumber( "o" );
                            break;
                        case "m":
                            month = getNumber( "m" );
                            break;
                        case "M":
                            month = getName( "M", monthNamesShort, monthNames );
                            break;
                        case "y":
                            year = getNumber( "y" );
                            break;
                        case "@":
                            date = new Date( getNumber( "@" ) );
                            year = date.getFullYear();
                            month = date.getMonth() + 1;
                            day = date.getDate();
                            break;
                        case "!":
                            date = new Date( ( getNumber( "!" ) - this._ticksTo1970 ) / 10000 );
                            year = date.getFullYear();
                            month = date.getMonth() + 1;
                            day = date.getDate();
                            break;
                        case "'":
                            if ( lookAhead( "'" ) ) {
                                checkLiteral();
                            } else {
                                literal = true;
                            }
                            break;
                        default:
                            checkLiteral();
                    }
                }
            }

            if ( iValue < value.length ) {
                extra = value.substr( iValue );
                if ( !/^\s+/.test( extra ) ) {
                    throw "Extra/unparsed characters found in date: " + extra;
                }
            }

            if ( year === -1 ) {
                year = new Date().getFullYear();
            } else if ( year < 100 ) {
                year += new Date().getFullYear() - new Date().getFullYear() % 100 +
                    ( year <= shortYearCutoff ? 0 : -100 );
            }

            if ( doy > -1 ) {
                month = 1;
                day = doy;
                do {
                    dim = this._getDaysInMonth( year, month - 1 );
                    if ( day <= dim ) {
                        break;
                    }
                    month++;
                    day -= dim;
                } while ( true );
            }

            date = this._daylightSavingAdjust( new Date( year, month - 1, day ) );
            if ( date.getFullYear() !== year || date.getMonth() + 1 !== month || date.getDate() !== day ) {
                throw "Invalid date"; // E.g. 31/02/00
            }
            return date;
        },

        /* Standard date formats. */
        ATOM: "yy-mm-dd", // RFC 3339 (ISO 8601)
        COOKIE: "D, dd M yy",
        ISO_8601: "yy-mm-dd",
        RFC_822: "D, d M y",
        RFC_850: "DD, dd-M-y",
        RFC_1036: "D, d M y",
        RFC_1123: "D, d M yy",
        RFC_2822: "D, d M yy",
        RSS: "D, d M y", // RFC 822
        TICKS: "!",
        TIMESTAMP: "@",
        W3C: "yy-mm-dd", // ISO 8601

        _ticksTo1970: ( ( ( 1970 - 1 ) * 365 + Math.floor( 1970 / 4 ) - Math.floor( 1970 / 100 ) +
        Math.floor( 1970 / 400 ) ) * 24 * 60 * 60 * 10000000 ),

        /* Format a date object into a string value.
         * The format can be combinations of the following:
         * d  - day of month (no leading zero)
         * dd - day of month (two digit)
         * o  - day of year (no leading zeros)
         * oo - day of year (three digit)
         * D  - day name short
         * DD - day name long
         * m  - month of year (no leading zero)
         * mm - month of year (two digit)
         * M  - month name short
         * MM - month name long
         * y  - year (two digit)
         * yy - year (four digit)
         * @ - Unix timestamp (ms since 01/01/1970)
         * ! - Windows ticks (100ns since 01/01/0001)
         * "..." - literal text
         * '' - single quote
         *
         * @param  format string - the desired format of the date
         * @param  date Date - the date value to format
         * @param  settings Object - attributes include:
         *					dayNamesShort	string[7] - abbreviated names of the days from Sunday (optional)
         *					dayNames		string[7] - names of the days from Sunday (optional)
         *					monthNamesShort string[12] - abbreviated names of the months (optional)
         *					monthNames		string[12] - names of the months (optional)
         * @return  string - the date in the above format
         */
        formatDate: function( format, date, settings ) {
            if ( !date ) {
                return "";
            }

            var iFormat,
                dayNamesShort = ( settings ? settings.dayNamesShort : null ) || this._defaults.dayNamesShort,
                dayNames = ( settings ? settings.dayNames : null ) || this._defaults.dayNames,
                monthNamesShort = ( settings ? settings.monthNamesShort : null ) || this._defaults.monthNamesShort,
                monthNames = ( settings ? settings.monthNames : null ) || this._defaults.monthNames,

                // Check whether a format character is doubled
                lookAhead = function( match ) {
                    var matches = ( iFormat + 1 < format.length && format.charAt( iFormat + 1 ) === match );
                    if ( matches ) {
                        iFormat++;
                    }
                    return matches;
                },

                // Format a number, with leading zero if necessary
                formatNumber = function( match, value, len ) {
                    var num = "" + value;
                    if ( lookAhead( match ) ) {
                        while ( num.length < len ) {
                            num = "0" + num;
                        }
                    }
                    return num;
                },

                // Format a name, short or long as requested
                formatName = function( match, value, shortNames, longNames ) {
                    return ( lookAhead( match ) ? longNames[ value ] : shortNames[ value ] );
                },
                output = "",
                literal = false;

            if ( date ) {
                for ( iFormat = 0; iFormat < format.length; iFormat++ ) {
                    if ( literal ) {
                        if ( format.charAt( iFormat ) === "'" && !lookAhead( "'" ) ) {
                            literal = false;
                        } else {
                            output += format.charAt( iFormat );
                        }
                    } else {
                        switch ( format.charAt( iFormat ) ) {
                            case "d":
                                output += formatNumber( "d", date.getDate(), 2 );
                                break;
                            case "D":
                                output += formatName( "D", date.getDay(), dayNamesShort, dayNames );
                                break;
                            case "o":
                                output += formatNumber( "o",
                                    Math.round( ( new Date( date.getFullYear(), date.getMonth(), date.getDate() ).getTime() - new Date( date.getFullYear(), 0, 0 ).getTime() ) / 86400000 ), 3 );
                                break;
                            case "m":
                                output += formatNumber( "m", date.getMonth() + 1, 2 );
                                break;
                            case "M":
                                output += formatName( "M", date.getMonth(), monthNamesShort, monthNames );
                                break;
                            case "y":
                                output += ( lookAhead( "y" ) ? date.getFullYear() :
                                    ( date.getFullYear() % 100 < 10 ? "0" : "" ) + date.getFullYear() % 100 );
                                break;
                            case "@":
                                output += date.getTime();
                                break;
                            case "!":
                                output += date.getTime() * 10000 + this._ticksTo1970;
                                break;
                            case "'":
                                if ( lookAhead( "'" ) ) {
                                    output += "'";
                                } else {
                                    literal = true;
                                }
                                break;
                            default:
                                output += format.charAt( iFormat );
                        }
                    }
                }
            }
            return output;
        },

        /* Extract all possible characters from the date format. */
        _possibleChars: function( format ) {
            var iFormat,
                chars = "",
                literal = false,

                // Check whether a format character is doubled
                lookAhead = function( match ) {
                    var matches = ( iFormat + 1 < format.length && format.charAt( iFormat + 1 ) === match );
                    if ( matches ) {
                        iFormat++;
                    }
                    return matches;
                };

            for ( iFormat = 0; iFormat < format.length; iFormat++ ) {
                if ( literal ) {
                    if ( format.charAt( iFormat ) === "'" && !lookAhead( "'" ) ) {
                        literal = false;
                    } else {
                        chars += format.charAt( iFormat );
                    }
                } else {
                    switch ( format.charAt( iFormat ) ) {
                        case "d": case "m": case "y": case "@":
                        chars += "0123456789";
                        break;
                        case "D": case "M":
                        return null; // Accept anything
                        case "'":
                            if ( lookAhead( "'" ) ) {
                                chars += "'";
                            } else {
                                literal = true;
                            }
                            break;
                        default:
                            chars += format.charAt( iFormat );
                    }
                }
            }
            return chars;
        },

        /* Get a setting value, defaulting if necessary. */
        _get: function( inst, name ) {
            return inst.settings[ name ] !== undefined ?
                inst.settings[ name ] : this._defaults[ name ];
        },

        /* Parse existing date and initialise date picker. */
        _setDateFromField: function( inst, noDefault ) {
            if ( inst.input.val() === inst.lastVal ) {
                return;
            }

            var dateFormat = this._get( inst, "dateFormat" ),
                dates = inst.lastVal = inst.input ? inst.input.val() : null,
                defaultDate = this._getDefaultDate( inst ),
                date = defaultDate,
                settings = this._getFormatConfig( inst );

            try {
                date = this.parseDate( dateFormat, dates, settings ) || defaultDate;
            } catch ( event ) {
                dates = ( noDefault ? "" : dates );
            }
            inst.selectedDay = date.getDate();
            inst.drawMonth = inst.selectedMonth = date.getMonth();
            inst.drawYear = inst.selectedYear = date.getFullYear();
            inst.currentDay = ( dates ? date.getDate() : 0 );
            inst.currentMonth = ( dates ? date.getMonth() : 0 );
            inst.currentYear = ( dates ? date.getFullYear() : 0 );
            this._adjustInstDate( inst );
        },

        /* Retrieve the default date shown on opening. */
        _getDefaultDate: function( inst ) {
            return this._restrictMinMax( inst,
                this._determineDate( inst, this._get( inst, "defaultDate" ), new Date() ) );
        },

        /* A date may be specified as an exact value or a relative one. */
        _determineDate: function( inst, date, defaultDate ) {
            var offsetNumeric = function( offset ) {
                    var date = new Date();
                    date.setDate( date.getDate() + offset );
                    return date;
                },
                offsetString = function( offset ) {
                    try {
                        return $.datepicker.parseDate( $.datepicker._get( inst, "dateFormat" ),
                            offset, $.datepicker._getFormatConfig( inst ) );
                    }
                    catch ( e ) {

                        // Ignore
                    }

                    var date = ( offset.toLowerCase().match( /^c/ ) ?
                                $.datepicker._getDate( inst ) : null ) || new Date(),
                        year = date.getFullYear(),
                        month = date.getMonth(),
                        day = date.getDate(),
                        pattern = /([+\-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g,
                        matches = pattern.exec( offset );

                    while ( matches ) {
                        switch ( matches[ 2 ] || "d" ) {
                            case "d" : case "D" :
                            day += parseInt( matches[ 1 ], 10 ); break;
                            case "w" : case "W" :
                            day += parseInt( matches[ 1 ], 10 ) * 7; break;
                            case "m" : case "M" :
                            month += parseInt( matches[ 1 ], 10 );
                            day = Math.min( day, $.datepicker._getDaysInMonth( year, month ) );
                            break;
                            case "y": case "Y" :
                            year += parseInt( matches[ 1 ], 10 );
                            day = Math.min( day, $.datepicker._getDaysInMonth( year, month ) );
                            break;
                        }
                        matches = pattern.exec( offset );
                    }
                    return new Date( year, month, day );
                },
                newDate = ( date == null || date === "" ? defaultDate : ( typeof date === "string" ? offsetString( date ) :
                    ( typeof date === "number" ? ( isNaN( date ) ? defaultDate : offsetNumeric( date ) ) : new Date( date.getTime() ) ) ) );

            newDate = ( newDate && newDate.toString() === "Invalid Date" ? defaultDate : newDate );
            if ( newDate ) {
                newDate.setHours( 0 );
                newDate.setMinutes( 0 );
                newDate.setSeconds( 0 );
                newDate.setMilliseconds( 0 );
            }
            return this._daylightSavingAdjust( newDate );
        },

        /* Handle switch to/from daylight saving.
         * Hours may be non-zero on daylight saving cut-over:
         * > 12 when midnight changeover, but then cannot generate
         * midnight datetime, so jump to 1AM, otherwise reset.
         * @param  date  (Date) the date to check
         * @return  (Date) the corrected date
         */
        _daylightSavingAdjust: function( date ) {
            if ( !date ) {
                return null;
            }
            date.setHours( date.getHours() > 12 ? date.getHours() + 2 : 0 );
            return date;
        },

        /* Set the date(s) directly. */
        _setDate: function( inst, date, noChange ) {
            var clear = !date,
                origMonth = inst.selectedMonth,
                origYear = inst.selectedYear,
                newDate = this._restrictMinMax( inst, this._determineDate( inst, date, new Date() ) );

            inst.selectedDay = inst.currentDay = newDate.getDate();
            inst.drawMonth = inst.selectedMonth = inst.currentMonth = newDate.getMonth();
            inst.drawYear = inst.selectedYear = inst.currentYear = newDate.getFullYear();
            if ( ( origMonth !== inst.selectedMonth || origYear !== inst.selectedYear ) && !noChange ) {
                this._notifyChange( inst );
            }
            this._adjustInstDate( inst );
            if ( inst.input ) {
                inst.input.val( clear ? "" : this._formatDate( inst ) );
            }
        },

        /* Retrieve the date(s) directly. */
        _getDate: function( inst ) {
            var startDate = ( !inst.currentYear || ( inst.input && inst.input.val() === "" ) ? null :
                this._daylightSavingAdjust( new Date(
                    inst.currentYear, inst.currentMonth, inst.currentDay ) ) );
            return startDate;
        },

        /* Attach the onxxx handlers.  These are declared statically so
         * they work with static code transformers like Caja.
         */
        _attachHandlers: function( inst ) {
            var stepMonths = this._get( inst, "stepMonths" ),
                id = "#" + inst.id.replace( /\\\\/g, "\\" );
            inst.dpDiv.find( "[data-handler]" ).map( function() {
                var handler = {
                    prev: function() {
                        $.datepicker._adjustDate( id, -stepMonths, "M" );
                    },
                    next: function() {
                        $.datepicker._adjustDate( id, +stepMonths, "M" );
                    },
                    hide: function() {
                        $.datepicker._hideDatepicker();
                    },
                    today: function() {
                        $.datepicker._gotoToday( id );
                    },
                    selectDay: function() {
                        $.datepicker._selectDay( id, +this.getAttribute( "data-month" ), +this.getAttribute( "data-year" ), this );
                        return false;
                    },
                    selectMonth: function() {
                        $.datepicker._selectMonthYear( id, this, "M" );
                        return false;
                    },
                    selectYear: function() {
                        $.datepicker._selectMonthYear( id, this, "Y" );
                        return false;
                    }
                };
                $( this ).on( this.getAttribute( "data-event" ), handler[ this.getAttribute( "data-handler" ) ] );
            } );
        },

        /* Generate the HTML for the current state of the date picker. */
        _generateHTML: function( inst ) {
            var maxDraw, prevText, prev, nextText, next, currentText, gotoDate,
                controls, buttonPanel, firstDay, showWeek, dayNames, dayNamesMin,
                monthNames, monthNamesShort, beforeShowDay, showOtherMonths,
                selectOtherMonths, defaultDate, html, dow, row, group, col, selectedDate,
                cornerClass, calender, thead, day, daysInMonth, leadDays, curRows, numRows,
                printDate, dRow, tbody, daySettings, otherMonth, unselectable,
                tempDate = new Date(),
                today = this._daylightSavingAdjust(
                    new Date( tempDate.getFullYear(), tempDate.getMonth(), tempDate.getDate() ) ), // clear time
                isRTL = this._get( inst, "isRTL" ),
                showButtonPanel = this._get( inst, "showButtonPanel" ),
                hideIfNoPrevNext = this._get( inst, "hideIfNoPrevNext" ),
                navigationAsDateFormat = this._get( inst, "navigationAsDateFormat" ),
                numMonths = this._getNumberOfMonths( inst ),
                showCurrentAtPos = this._get( inst, "showCurrentAtPos" ),
                stepMonths = this._get( inst, "stepMonths" ),
                isMultiMonth = ( numMonths[ 0 ] !== 1 || numMonths[ 1 ] !== 1 ),
                currentDate = this._daylightSavingAdjust( ( !inst.currentDay ? new Date( 9999, 9, 9 ) :
                    new Date( inst.currentYear, inst.currentMonth, inst.currentDay ) ) ),
                minDate = this._getMinMaxDate( inst, "min" ),
                maxDate = this._getMinMaxDate( inst, "max" ),
                drawMonth = inst.drawMonth - showCurrentAtPos,
                drawYear = inst.drawYear;

            if ( drawMonth < 0 ) {
                drawMonth += 12;
                drawYear--;
            }
            if ( maxDate ) {
                maxDraw = this._daylightSavingAdjust( new Date( maxDate.getFullYear(),
                    maxDate.getMonth() - ( numMonths[ 0 ] * numMonths[ 1 ] ) + 1, maxDate.getDate() ) );
                maxDraw = ( minDate && maxDraw < minDate ? minDate : maxDraw );
                while ( this._daylightSavingAdjust( new Date( drawYear, drawMonth, 1 ) ) > maxDraw ) {
                    drawMonth--;
                    if ( drawMonth < 0 ) {
                        drawMonth = 11;
                        drawYear--;
                    }
                }
            }
            inst.drawMonth = drawMonth;
            inst.drawYear = drawYear;

            prevText = this._get( inst, "prevText" );
            prevText = ( !navigationAsDateFormat ? prevText : this.formatDate( prevText,
                this._daylightSavingAdjust( new Date( drawYear, drawMonth - stepMonths, 1 ) ),
                this._getFormatConfig( inst ) ) );

            prev = ( this._canAdjustMonth( inst, -1, drawYear, drawMonth ) ?
                "<a class='ui-datepicker-prev ui-corner-all' data-handler='prev' data-event='click'" +
                " title='" + prevText + "'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "e" : "w" ) + "'>" + prevText + "</span></a>" :
                ( hideIfNoPrevNext ? "" : "<a class='ui-datepicker-prev ui-corner-all ui-state-disabled' title='" + prevText + "'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "e" : "w" ) + "'>" + prevText + "</span></a>" ) );

            nextText = this._get( inst, "nextText" );
            nextText = ( !navigationAsDateFormat ? nextText : this.formatDate( nextText,
                this._daylightSavingAdjust( new Date( drawYear, drawMonth + stepMonths, 1 ) ),
                this._getFormatConfig( inst ) ) );

            next = ( this._canAdjustMonth( inst, +1, drawYear, drawMonth ) ?
                "<a class='ui-datepicker-next ui-corner-all' data-handler='next' data-event='click'" +
                " title='" + nextText + "'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "w" : "e" ) + "'>" + nextText + "</span></a>" :
                ( hideIfNoPrevNext ? "" : "<a class='ui-datepicker-next ui-corner-all ui-state-disabled' title='" + nextText + "'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "w" : "e" ) + "'>" + nextText + "</span></a>" ) );

            currentText = this._get( inst, "currentText" );
            gotoDate = ( this._get( inst, "gotoCurrent" ) && inst.currentDay ? currentDate : today );
            currentText = ( !navigationAsDateFormat ? currentText :
                this.formatDate( currentText, gotoDate, this._getFormatConfig( inst ) ) );

            controls = ( !inst.inline ? "<button type='button' class='ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all' data-handler='hide' data-event='click'>" +
                this._get( inst, "closeText" ) + "</button>" : "" );

            buttonPanel = ( showButtonPanel ) ? "<div class='ui-datepicker-buttonpane ui-widget-content'>" + ( isRTL ? controls : "" ) +
                ( this._isInRange( inst, gotoDate ) ? "<button type='button' class='ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all' data-handler='today' data-event='click'" +
                    ">" + currentText + "</button>" : "" ) + ( isRTL ? "" : controls ) + "</div>" : "";

            firstDay = parseInt( this._get( inst, "firstDay" ), 10 );
            firstDay = ( isNaN( firstDay ) ? 0 : firstDay );

            showWeek = this._get( inst, "showWeek" );
            dayNames = this._get( inst, "dayNames" );
            dayNamesMin = this._get( inst, "dayNamesMin" );
            monthNames = this._get( inst, "monthNames" );
            monthNamesShort = this._get( inst, "monthNamesShort" );
            beforeShowDay = this._get( inst, "beforeShowDay" );
            showOtherMonths = this._get( inst, "showOtherMonths" );
            selectOtherMonths = this._get( inst, "selectOtherMonths" );
            defaultDate = this._getDefaultDate( inst );
            html = "";

            for ( row = 0; row < numMonths[ 0 ]; row++ ) {
                group = "";
                this.maxRows = 4;
                for ( col = 0; col < numMonths[ 1 ]; col++ ) {
                    selectedDate = this._daylightSavingAdjust( new Date( drawYear, drawMonth, inst.selectedDay ) );
                    cornerClass = " ui-corner-all";
                    calender = "";
                    if ( isMultiMonth ) {
                        calender += "<div class='ui-datepicker-group";
                        if ( numMonths[ 1 ] > 1 ) {
                            switch ( col ) {
                                case 0: calender += " ui-datepicker-group-first";
                                    cornerClass = " ui-corner-" + ( isRTL ? "right" : "left" ); break;
                                case numMonths[ 1 ] - 1: calender += " ui-datepicker-group-last";
                                    cornerClass = " ui-corner-" + ( isRTL ? "left" : "right" ); break;
                                default: calender += " ui-datepicker-group-middle"; cornerClass = ""; break;
                            }
                        }
                        calender += "'>";
                    }
                    calender += "<div class='ui-datepicker-header ui-widget-header ui-helper-clearfix" + cornerClass + "'>" +
                        ( /all|left/.test( cornerClass ) && row === 0 ? ( isRTL ? next : prev ) : "" ) +
                        ( /all|right/.test( cornerClass ) && row === 0 ? ( isRTL ? prev : next ) : "" ) +
                        this._generateMonthYearHeader( inst, drawMonth, drawYear, minDate, maxDate,
                            row > 0 || col > 0, monthNames, monthNamesShort ) + // draw month headers
                        "</div><table class='ui-datepicker-calendar'><thead>" +
                        "<tr>";
                    thead = ( showWeek ? "<th class='ui-datepicker-week-col'>" + this._get( inst, "weekHeader" ) + "</th>" : "" );
                    for ( dow = 0; dow < 7; dow++ ) { // days of the week
                        day = ( dow + firstDay ) % 7;
                        thead += "<th scope='col'" + ( ( dow + firstDay + 6 ) % 7 >= 5 ? " class='ui-datepicker-week-end'" : "" ) + ">" +
                            "<span title='" + dayNames[ day ] + "'>" + dayNamesMin[ day ] + "</span></th>";
                    }
                    calender += thead + "</tr></thead><tbody>";
                    daysInMonth = this._getDaysInMonth( drawYear, drawMonth );
                    if ( drawYear === inst.selectedYear && drawMonth === inst.selectedMonth ) {
                        inst.selectedDay = Math.min( inst.selectedDay, daysInMonth );
                    }
                    leadDays = ( this._getFirstDayOfMonth( drawYear, drawMonth ) - firstDay + 7 ) % 7;
                    curRows = Math.ceil( ( leadDays + daysInMonth ) / 7 ); // calculate the number of rows to generate
                    numRows = ( isMultiMonth ? this.maxRows > curRows ? this.maxRows : curRows : curRows ); //If multiple months, use the higher number of rows (see #7043)
                    this.maxRows = numRows;
                    printDate = this._daylightSavingAdjust( new Date( drawYear, drawMonth, 1 - leadDays ) );
                    for ( dRow = 0; dRow < numRows; dRow++ ) { // create date picker rows
                        calender += "<tr>";
                        tbody = ( !showWeek ? "" : "<td class='ui-datepicker-week-col'>" +
                            this._get( inst, "calculateWeek" )( printDate ) + "</td>" );
                        for ( dow = 0; dow < 7; dow++ ) { // create date picker days
                            daySettings = ( beforeShowDay ?
                                beforeShowDay.apply( ( inst.input ? inst.input[ 0 ] : null ), [ printDate ] ) : [ true, "" ] );
                            otherMonth = ( printDate.getMonth() !== drawMonth );
                            unselectable = ( otherMonth && !selectOtherMonths ) || !daySettings[ 0 ] ||
                                ( minDate && printDate < minDate ) || ( maxDate && printDate > maxDate );
                            tbody += "<td class='" +
                                ( ( dow + firstDay + 6 ) % 7 >= 5 ? " ui-datepicker-week-end" : "" ) + // highlight weekends
                                ( otherMonth ? " ui-datepicker-other-month" : "" ) + // highlight days from other months
                                ( ( printDate.getTime() === selectedDate.getTime() && drawMonth === inst.selectedMonth && inst._keyEvent ) || // user pressed key
                                ( defaultDate.getTime() === printDate.getTime() && defaultDate.getTime() === selectedDate.getTime() ) ?

                                    // or defaultDate is current printedDate and defaultDate is selectedDate
                                    " " + this._dayOverClass : "" ) + // highlight selected day
                                ( unselectable ? " " + this._unselectableClass + " ui-state-disabled" : "" ) +  // highlight unselectable days
                                ( otherMonth && !showOtherMonths ? "" : " " + daySettings[ 1 ] + // highlight custom dates
                                    ( printDate.getTime() === currentDate.getTime() ? " " + this._currentClass : "" ) + // highlight selected day
                                    ( printDate.getTime() === today.getTime() ? " ui-datepicker-today" : "" ) ) + "'" + // highlight today (if different)
                                ( ( !otherMonth || showOtherMonths ) && daySettings[ 2 ] ? " title='" + daySettings[ 2 ].replace( /'/g, "&#39;" ) + "'" : "" ) + // cell title
                                ( unselectable ? "" : " data-handler='selectDay' data-event='click' data-month='" + printDate.getMonth() + "' data-year='" + printDate.getFullYear() + "'" ) + ">" + // actions
                                ( otherMonth && !showOtherMonths ? "&#xa0;" : // display for other months
                                    ( unselectable ? "<span class='ui-state-default'>" + printDate.getDate() + "</span>" : "<a class='ui-state-default" +
                                        ( printDate.getTime() === today.getTime() ? " ui-state-highlight" : "" ) +
                                        ( printDate.getTime() === currentDate.getTime() ? " ui-state-active" : "" ) + // highlight selected day
                                        ( otherMonth ? " ui-priority-secondary" : "" ) + // distinguish dates from other months
                                        "' href='#'>" + printDate.getDate() + "</a>" ) ) + "</td>"; // display selectable date
                            printDate.setDate( printDate.getDate() + 1 );
                            printDate = this._daylightSavingAdjust( printDate );
                        }
                        calender += tbody + "</tr>";
                    }
                    drawMonth++;
                    if ( drawMonth > 11 ) {
                        drawMonth = 0;
                        drawYear++;
                    }
                    calender += "</tbody></table>" + ( isMultiMonth ? "</div>" +
                            ( ( numMonths[ 0 ] > 0 && col === numMonths[ 1 ] - 1 ) ? "<div class='ui-datepicker-row-break'></div>" : "" ) : "" );
                    group += calender;
                }
                html += group;
            }
            html += buttonPanel;
            inst._keyEvent = false;
            return html;
        },

        /* Generate the month and year header. */
        _generateMonthYearHeader: function( inst, drawMonth, drawYear, minDate, maxDate,
                                            secondary, monthNames, monthNamesShort ) {

            var inMinYear, inMaxYear, month, years, thisYear, determineYear, year, endYear,
                changeMonth = this._get( inst, "changeMonth" ),
                changeYear = this._get( inst, "changeYear" ),
                showMonthAfterYear = this._get( inst, "showMonthAfterYear" ),
                html = "<div class='ui-datepicker-title'>",
                monthHtml = "";

            // Month selection
            if ( secondary || !changeMonth ) {
                monthHtml += "<span class='ui-datepicker-month'>" + monthNames[ drawMonth ] + "</span>";
            } else {
                inMinYear = ( minDate && minDate.getFullYear() === drawYear );
                inMaxYear = ( maxDate && maxDate.getFullYear() === drawYear );
                monthHtml += "<select class='ui-datepicker-month' data-handler='selectMonth' data-event='change'>";
                for ( month = 0; month < 12; month++ ) {
                    if ( ( !inMinYear || month >= minDate.getMonth() ) && ( !inMaxYear || month <= maxDate.getMonth() ) ) {
                        monthHtml += "<option value='" + month + "'" +
                            ( month === drawMonth ? " selected='selected'" : "" ) +
                            ">" + monthNamesShort[ month ] + "</option>";
                    }
                }
                monthHtml += "</select>";
            }

            if ( !showMonthAfterYear ) {
                html += monthHtml + ( secondary || !( changeMonth && changeYear ) ? "&#xa0;" : "" );
            }

            // Year selection
            if ( !inst.yearshtml ) {
                inst.yearshtml = "";
                if ( secondary || !changeYear ) {
                    html += "<span class='ui-datepicker-year'>" + drawYear + "</span>";
                } else {

                    // determine range of years to display
                    years = this._get( inst, "yearRange" ).split( ":" );
                    thisYear = new Date().getFullYear();
                    determineYear = function( value ) {
                        var year = ( value.match( /c[+\-].*/ ) ? drawYear + parseInt( value.substring( 1 ), 10 ) :
                            ( value.match( /[+\-].*/ ) ? thisYear + parseInt( value, 10 ) :
                                parseInt( value, 10 ) ) );
                        return ( isNaN( year ) ? thisYear : year );
                    };
                    year = determineYear( years[ 0 ] );
                    endYear = Math.max( year, determineYear( years[ 1 ] || "" ) );
                    year = ( minDate ? Math.max( year, minDate.getFullYear() ) : year );
                    endYear = ( maxDate ? Math.min( endYear, maxDate.getFullYear() ) : endYear );
                    inst.yearshtml += "<select class='ui-datepicker-year' data-handler='selectYear' data-event='change'>";
                    for ( ; year <= endYear; year++ ) {
                        inst.yearshtml += "<option value='" + year + "'" +
                            ( year === drawYear ? " selected='selected'" : "" ) +
                            ">" + year + "</option>";
                    }
                    inst.yearshtml += "</select>";

                    html += inst.yearshtml;
                    inst.yearshtml = null;
                }
            }

            html += this._get( inst, "yearSuffix" );
            if ( showMonthAfterYear ) {
                html += ( secondary || !( changeMonth && changeYear ) ? "&#xa0;" : "" ) + monthHtml;
            }
            html += "</div>"; // Close datepicker_header
            return html;
        },

        /* Adjust one of the date sub-fields. */
        _adjustInstDate: function( inst, offset, period ) {
            var year = inst.selectedYear + ( period === "Y" ? offset : 0 ),
                month = inst.selectedMonth + ( period === "M" ? offset : 0 ),
                day = Math.min( inst.selectedDay, this._getDaysInMonth( year, month ) ) + ( period === "D" ? offset : 0 ),
                date = this._restrictMinMax( inst, this._daylightSavingAdjust( new Date( year, month, day ) ) );

            inst.selectedDay = date.getDate();
            inst.drawMonth = inst.selectedMonth = date.getMonth();
            inst.drawYear = inst.selectedYear = date.getFullYear();
            if ( period === "M" || period === "Y" ) {
                this._notifyChange( inst );
            }
        },

        /* Ensure a date is within any min/max bounds. */
        _restrictMinMax: function( inst, date ) {
            var minDate = this._getMinMaxDate( inst, "min" ),
                maxDate = this._getMinMaxDate( inst, "max" ),
                newDate = ( minDate && date < minDate ? minDate : date );
            return ( maxDate && newDate > maxDate ? maxDate : newDate );
        },

        /* Notify change of month/year. */
        _notifyChange: function( inst ) {
            var onChange = this._get( inst, "onChangeMonthYear" );
            if ( onChange ) {
                onChange.apply( ( inst.input ? inst.input[ 0 ] : null ),
                    [ inst.selectedYear, inst.selectedMonth + 1, inst ] );
            }
        },

        /* Determine the number of months to show. */
        _getNumberOfMonths: function( inst ) {
            var numMonths = this._get( inst, "numberOfMonths" );
            return ( numMonths == null ? [ 1, 1 ] : ( typeof numMonths === "number" ? [ 1, numMonths ] : numMonths ) );
        },

        /* Determine the current maximum date - ensure no time components are set. */
        _getMinMaxDate: function( inst, minMax ) {
            return this._determineDate( inst, this._get( inst, minMax + "Date" ), null );
        },

        /* Find the number of days in a given month. */
        _getDaysInMonth: function( year, month ) {
            return 32 - this._daylightSavingAdjust( new Date( year, month, 32 ) ).getDate();
        },

        /* Find the day of the week of the first of a month. */
        _getFirstDayOfMonth: function( year, month ) {
            return new Date( year, month, 1 ).getDay();
        },

        /* Determines if we should allow a "next/prev" month display change. */
        _canAdjustMonth: function( inst, offset, curYear, curMonth ) {
            var numMonths = this._getNumberOfMonths( inst ),
                date = this._daylightSavingAdjust( new Date( curYear,
                    curMonth + ( offset < 0 ? offset : numMonths[ 0 ] * numMonths[ 1 ] ), 1 ) );

            if ( offset < 0 ) {
                date.setDate( this._getDaysInMonth( date.getFullYear(), date.getMonth() ) );
            }
            return this._isInRange( inst, date );
        },

        /* Is the given date in the accepted range? */
        _isInRange: function( inst, date ) {
            var yearSplit, currentYear,
                minDate = this._getMinMaxDate( inst, "min" ),
                maxDate = this._getMinMaxDate( inst, "max" ),
                minYear = null,
                maxYear = null,
                years = this._get( inst, "yearRange" );
            if ( years ) {
                yearSplit = years.split( ":" );
                currentYear = new Date().getFullYear();
                minYear = parseInt( yearSplit[ 0 ], 10 );
                maxYear = parseInt( yearSplit[ 1 ], 10 );
                if ( yearSplit[ 0 ].match( /[+\-].*/ ) ) {
                    minYear += currentYear;
                }
                if ( yearSplit[ 1 ].match( /[+\-].*/ ) ) {
                    maxYear += currentYear;
                }
            }

            return ( ( !minDate || date.getTime() >= minDate.getTime() ) &&
            ( !maxDate || date.getTime() <= maxDate.getTime() ) &&
            ( !minYear || date.getFullYear() >= minYear ) &&
            ( !maxYear || date.getFullYear() <= maxYear ) );
        },

        /* Provide the configuration settings for formatting/parsing. */
        _getFormatConfig: function( inst ) {
            var shortYearCutoff = this._get( inst, "shortYearCutoff" );
            shortYearCutoff = ( typeof shortYearCutoff !== "string" ? shortYearCutoff :
                new Date().getFullYear() % 100 + parseInt( shortYearCutoff, 10 ) );
            return { shortYearCutoff: shortYearCutoff,
                dayNamesShort: this._get( inst, "dayNamesShort" ), dayNames: this._get( inst, "dayNames" ),
                monthNamesShort: this._get( inst, "monthNamesShort" ), monthNames: this._get( inst, "monthNames" ) };
        },

        /* Format the given date for display. */
        _formatDate: function( inst, day, month, year ) {
            if ( !day ) {
                inst.currentDay = inst.selectedDay;
                inst.currentMonth = inst.selectedMonth;
                inst.currentYear = inst.selectedYear;
            }
            var date = ( day ? ( typeof day === "object" ? day :
                this._daylightSavingAdjust( new Date( year, month, day ) ) ) :
                this._daylightSavingAdjust( new Date( inst.currentYear, inst.currentMonth, inst.currentDay ) ) );
            return this.formatDate( this._get( inst, "dateFormat" ), date, this._getFormatConfig( inst ) );
        }
    } );

    /*
     * Bind hover events for datepicker elements.
     * Done via delegate so the binding only occurs once in the lifetime of the parent div.
     * Global datepicker_instActive, set by _updateDatepicker allows the handlers to find their way back to the active picker.
     */
    function datepicker_bindHover( dpDiv ) {
        var selector = "button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a";
        return dpDiv.on( "mouseout", selector, function() {
            $( this ).removeClass( "ui-state-hover" );
            if ( this.className.indexOf( "ui-datepicker-prev" ) !== -1 ) {
                $( this ).removeClass( "ui-datepicker-prev-hover" );
            }
            if ( this.className.indexOf( "ui-datepicker-next" ) !== -1 ) {
                $( this ).removeClass( "ui-datepicker-next-hover" );
            }
        } )
            .on( "mouseover", selector, datepicker_handleMouseover );
    }

    function datepicker_handleMouseover() {
        if ( !$.datepicker._isDisabledDatepicker( datepicker_instActive.inline ? datepicker_instActive.dpDiv.parent()[ 0 ] : datepicker_instActive.input[ 0 ] ) ) {
            $( this ).parents( ".ui-datepicker-calendar" ).find( "a" ).removeClass( "ui-state-hover" );
            $( this ).addClass( "ui-state-hover" );
            if ( this.className.indexOf( "ui-datepicker-prev" ) !== -1 ) {
                $( this ).addClass( "ui-datepicker-prev-hover" );
            }
            if ( this.className.indexOf( "ui-datepicker-next" ) !== -1 ) {
                $( this ).addClass( "ui-datepicker-next-hover" );
            }
        }
    }

    /* jQuery extend now ignores nulls! */
    function datepicker_extendRemove( target, props ) {
        $.extend( target, props );
        for ( var name in props ) {
            if ( props[ name ] == null ) {
                target[ name ] = props[ name ];
            }
        }
        return target;
    }

    /* Invoke the datepicker functionality.
     @param  options  string - a command, optionally followed by additional parameters or
     Object - settings for attaching new datepicker functionality
     @return  jQuery object */
    $.fn.datepicker = function( options ) {

        /* Verify an empty collection wasn't passed - Fixes #6976 */
        if ( !this.length ) {
            return this;
        }

        /* Initialise the date picker. */
        if ( !$.datepicker.initialized ) {
            $( document ).on( "mousedown", $.datepicker._checkExternalClick );
            $.datepicker.initialized = true;
        }

        /* Append datepicker main container to body if not exist. */
        if ( $( "#" + $.datepicker._mainDivId ).length === 0 ) {
            $( "body" ).append( $.datepicker.dpDiv );
        }

        var otherArgs = Array.prototype.slice.call( arguments, 1 );
        if ( typeof options === "string" && ( options === "isDisabled" || options === "getDate" || options === "widget" ) ) {
            return $.datepicker[ "_" + options + "Datepicker" ].
            apply( $.datepicker, [ this[ 0 ] ].concat( otherArgs ) );
        }
        if ( options === "option" && arguments.length === 2 && typeof arguments[ 1 ] === "string" ) {
            return $.datepicker[ "_" + options + "Datepicker" ].
            apply( $.datepicker, [ this[ 0 ] ].concat( otherArgs ) );
        }
        return this.each( function() {
            typeof options === "string" ?
                $.datepicker[ "_" + options + "Datepicker" ].
                apply( $.datepicker, [ this ].concat( otherArgs ) ) :
                $.datepicker._attachDatepicker( this, options );
        } );
    };

    $.datepicker = new Datepicker(); // singleton instance
    $.datepicker.initialized = false;
    $.datepicker.uuid = new Date().getTime();
    $.datepicker.version = "1.12.1";

    var widgetsDatepicker = $.datepicker;


    /*!
     * jQuery UI Dialog 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Dialog
//>>group: Widgets
//>>description: Displays customizable dialog windows.
//>>docs: http://api.jqueryui.com/dialog/
//>>demos: http://jqueryui.com/dialog/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/dialog.css
//>>css.theme: ../../themes/base/theme.css



    $.widget( "ui.dialog", {
        version: "1.12.1",
        options: {
            appendTo: "body",
            autoOpen: true,
            buttons: [],
            classes: {
                "ui-dialog": "ui-corner-all",
                "ui-dialog-titlebar": "ui-corner-all"
            },
            closeOnEscape: true,
            closeText: "Close",
            draggable: true,
            hide: null,
            height: "auto",
            maxHeight: null,
            maxWidth: null,
            minHeight: 150,
            minWidth: 150,
            modal: false,
            position: {
                my: "center",
                at: "center",
                of: window,
                collision: "fit",

                // Ensure the titlebar is always visible
                using: function( pos ) {
                    var topOffset = $( this ).css( pos ).offset().top;
                    if ( topOffset < 0 ) {
                        $( this ).css( "top", pos.top - topOffset );
                    }
                }
            },
            resizable: true,
            show: null,
            title: null,
            width: 300,

            // Callbacks
            beforeClose: null,
            close: null,
            drag: null,
            dragStart: null,
            dragStop: null,
            focus: null,
            open: null,
            resize: null,
            resizeStart: null,
            resizeStop: null
        },

        sizeRelatedOptions: {
            buttons: true,
            height: true,
            maxHeight: true,
            maxWidth: true,
            minHeight: true,
            minWidth: true,
            width: true
        },

        resizableRelatedOptions: {
            maxHeight: true,
            maxWidth: true,
            minHeight: true,
            minWidth: true
        },

        _create: function() {
            this.originalCss = {
                display: this.element[ 0 ].style.display,
                width: this.element[ 0 ].style.width,
                minHeight: this.element[ 0 ].style.minHeight,
                maxHeight: this.element[ 0 ].style.maxHeight,
                height: this.element[ 0 ].style.height
            };
            this.originalPosition = {
                parent: this.element.parent(),
                index: this.element.parent().children().index( this.element )
            };
            this.originalTitle = this.element.attr( "title" );
            if ( this.options.title == null && this.originalTitle != null ) {
                this.options.title = this.originalTitle;
            }

            // Dialogs can't be disabled
            if ( this.options.disabled ) {
                this.options.disabled = false;
            }

            this._createWrapper();

            this.element
                .show()
                .removeAttr( "title" )
                .appendTo( this.uiDialog );

            this._addClass( "ui-dialog-content", "ui-widget-content" );

            this._createTitlebar();
            this._createButtonPane();

            if ( this.options.draggable && $.fn.draggable ) {
                this._makeDraggable();
            }
            if ( this.options.resizable && $.fn.resizable ) {
                this._makeResizable();
            }

            this._isOpen = false;

            this._trackFocus();
        },

        _init: function() {
            if ( this.options.autoOpen ) {
                this.open();
            }
        },

        _appendTo: function() {
            var element = this.options.appendTo;
            if ( element && ( element.jquery || element.nodeType ) ) {
                return $( element );
            }
            return this.document.find( element || "body" ).eq( 0 );
        },

        _destroy: function() {
            var next,
                originalPosition = this.originalPosition;

            this._untrackInstance();
            this._destroyOverlay();

            this.element
                .removeUniqueId()
                .css( this.originalCss )

                // Without detaching first, the following becomes really slow
                .detach();

            this.uiDialog.remove();

            if ( this.originalTitle ) {
                this.element.attr( "title", this.originalTitle );
            }

            next = originalPosition.parent.children().eq( originalPosition.index );

            // Don't try to place the dialog next to itself (#8613)
            if ( next.length && next[ 0 ] !== this.element[ 0 ] ) {
                next.before( this.element );
            } else {
                originalPosition.parent.append( this.element );
            }
        },

        widget: function() {
            return this.uiDialog;
        },

        disable: $.noop,
        enable: $.noop,

        close: function( event ) {
            var that = this;

            if ( !this._isOpen || this._trigger( "beforeClose", event ) === false ) {
                return;
            }

            this._isOpen = false;
            this._focusedElement = null;
            this._destroyOverlay();
            this._untrackInstance();

            if ( !this.opener.filter( ":focusable" ).trigger( "focus" ).length ) {

                // Hiding a focused element doesn't trigger blur in WebKit
                // so in case we have nothing to focus on, explicitly blur the active element
                // https://bugs.webkit.org/show_bug.cgi?id=47182
                $.ui.safeBlur( $.ui.safeActiveElement( this.document[ 0 ] ) );
            }

            this._hide( this.uiDialog, this.options.hide, function() {
                that._trigger( "close", event );
            } );
        },

        isOpen: function() {
            return this._isOpen;
        },

        moveToTop: function() {
            this._moveToTop();
        },

        _moveToTop: function( event, silent ) {
            var moved = false,
                zIndices = this.uiDialog.siblings( ".ui-front:visible" ).map( function() {
                    return +$( this ).css( "z-index" );
                } ).get(),
                zIndexMax = Math.max.apply( null, zIndices );

            if ( zIndexMax >= +this.uiDialog.css( "z-index" ) ) {
                this.uiDialog.css( "z-index", zIndexMax + 1 );
                moved = true;
            }

            if ( moved && !silent ) {
                this._trigger( "focus", event );
            }
            return moved;
        },

        open: function() {
            var that = this;
            if ( this._isOpen ) {
                if ( this._moveToTop() ) {
                    this._focusTabbable();
                }
                return;
            }

            this._isOpen = true;
            this.opener = $( $.ui.safeActiveElement( this.document[ 0 ] ) );

            this._size();
            this._position();
            this._createOverlay();
            this._moveToTop( null, true );

            // Ensure the overlay is moved to the top with the dialog, but only when
            // opening. The overlay shouldn't move after the dialog is open so that
            // modeless dialogs opened after the modal dialog stack properly.
            if ( this.overlay ) {
                this.overlay.css( "z-index", this.uiDialog.css( "z-index" ) - 1 );
            }

            this._show( this.uiDialog, this.options.show, function() {
                that._focusTabbable();
                that._trigger( "focus" );
            } );

            // Track the dialog immediately upon openening in case a focus event
            // somehow occurs outside of the dialog before an element inside the
            // dialog is focused (#10152)
            this._makeFocusTarget();

            this._trigger( "open" );
        },

        _focusTabbable: function() {

            // Set focus to the first match:
            // 1. An element that was focused previously
            // 2. First element inside the dialog matching [autofocus]
            // 3. Tabbable element inside the content element
            // 4. Tabbable element inside the buttonpane
            // 5. The close button
            // 6. The dialog itself
            var hasFocus = this._focusedElement;
            if ( !hasFocus ) {
                hasFocus = this.element.find( "[autofocus]" );
            }
            if ( !hasFocus.length ) {
                hasFocus = this.element.find( ":tabbable" );
            }
            if ( !hasFocus.length ) {
                hasFocus = this.uiDialogButtonPane.find( ":tabbable" );
            }
            if ( !hasFocus.length ) {
                hasFocus = this.uiDialogTitlebarClose.filter( ":tabbable" );
            }
            if ( !hasFocus.length ) {
                hasFocus = this.uiDialog;
            }
            hasFocus.eq( 0 ).trigger( "focus" );
        },

        _keepFocus: function( event ) {
            function checkFocus() {
                var activeElement = $.ui.safeActiveElement( this.document[ 0 ] ),
                    isActive = this.uiDialog[ 0 ] === activeElement ||
                        $.contains( this.uiDialog[ 0 ], activeElement );
                if ( !isActive ) {
                    this._focusTabbable();
                }
            }
            event.preventDefault();
            checkFocus.call( this );

            // support: IE
            // IE <= 8 doesn't prevent moving focus even with event.preventDefault()
            // so we check again later
            this._delay( checkFocus );
        },

        _createWrapper: function() {
            this.uiDialog = $( "<div>" )
                .hide()
                .attr( {

                    // Setting tabIndex makes the div focusable
                    tabIndex: -1,
                    role: "dialog"
                } )
                .appendTo( this._appendTo() );

            this._addClass( this.uiDialog, "ui-dialog", "ui-widget ui-widget-content ui-front" );
            this._on( this.uiDialog, {
                keydown: function( event ) {
                    if ( this.options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
                        event.keyCode === $.ui.keyCode.ESCAPE ) {
                        event.preventDefault();
                        this.close( event );
                        return;
                    }

                    // Prevent tabbing out of dialogs
                    if ( event.keyCode !== $.ui.keyCode.TAB || event.isDefaultPrevented() ) {
                        return;
                    }
                    var tabbables = this.uiDialog.find( ":tabbable" ),
                        first = tabbables.filter( ":first" ),
                        last = tabbables.filter( ":last" );

                    if ( ( event.target === last[ 0 ] || event.target === this.uiDialog[ 0 ] ) &&
                        !event.shiftKey ) {
                        this._delay( function() {
                            first.trigger( "focus" );
                        } );
                        event.preventDefault();
                    } else if ( ( event.target === first[ 0 ] ||
                        event.target === this.uiDialog[ 0 ] ) && event.shiftKey ) {
                        this._delay( function() {
                            last.trigger( "focus" );
                        } );
                        event.preventDefault();
                    }
                },
                mousedown: function( event ) {
                    if ( this._moveToTop( event ) ) {
                        this._focusTabbable();
                    }
                }
            } );

            // We assume that any existing aria-describedby attribute means
            // that the dialog content is marked up properly
            // otherwise we brute force the content as the description
            if ( !this.element.find( "[aria-describedby]" ).length ) {
                this.uiDialog.attr( {
                    "aria-describedby": this.element.uniqueId().attr( "id" )
                } );
            }
        },

        _createTitlebar: function() {
            var uiDialogTitle;

            this.uiDialogTitlebar = $( "<div>" );
            this._addClass( this.uiDialogTitlebar,
                "ui-dialog-titlebar", "ui-widget-header ui-helper-clearfix" );
            this._on( this.uiDialogTitlebar, {
                mousedown: function( event ) {

                    // Don't prevent click on close button (#8838)
                    // Focusing a dialog that is partially scrolled out of view
                    // causes the browser to scroll it into view, preventing the click event
                    if ( !$( event.target ).closest( ".ui-dialog-titlebar-close" ) ) {

                        // Dialog isn't getting focus when dragging (#8063)
                        this.uiDialog.trigger( "focus" );
                    }
                }
            } );

            // Support: IE
            // Use type="button" to prevent enter keypresses in textboxes from closing the
            // dialog in IE (#9312)
            this.uiDialogTitlebarClose = $( "<button type='button'></button>" )
                .button( {
                    label: $( "<a>" ).text( this.options.closeText ).html(),
                    icon: "ui-icon-closethick",
                    showLabel: false
                } )
                .appendTo( this.uiDialogTitlebar );

            this._addClass( this.uiDialogTitlebarClose, "ui-dialog-titlebar-close" );
            this._on( this.uiDialogTitlebarClose, {
                click: function( event ) {
                    event.preventDefault();
                    this.close( event );
                }
            } );

            uiDialogTitle = $( "<span>" ).uniqueId().prependTo( this.uiDialogTitlebar );
            this._addClass( uiDialogTitle, "ui-dialog-title" );
            this._title( uiDialogTitle );

            this.uiDialogTitlebar.prependTo( this.uiDialog );

            this.uiDialog.attr( {
                "aria-labelledby": uiDialogTitle.attr( "id" )
            } );
        },

        _title: function( title ) {
            if ( this.options.title ) {
                title.text( this.options.title );
            } else {
                title.html( "&#160;" );
            }
        },

        _createButtonPane: function() {
            this.uiDialogButtonPane = $( "<div>" );
            this._addClass( this.uiDialogButtonPane, "ui-dialog-buttonpane",
                "ui-widget-content ui-helper-clearfix" );

            this.uiButtonSet = $( "<div>" )
                .appendTo( this.uiDialogButtonPane );
            this._addClass( this.uiButtonSet, "ui-dialog-buttonset" );

            this._createButtons();
        },

        _createButtons: function() {
            var that = this,
                buttons = this.options.buttons;

            // If we already have a button pane, remove it
            this.uiDialogButtonPane.remove();
            this.uiButtonSet.empty();

            if ( $.isEmptyObject( buttons ) || ( $.isArray( buttons ) && !buttons.length ) ) {
                this._removeClass( this.uiDialog, "ui-dialog-buttons" );
                return;
            }

            $.each( buttons, function( name, props ) {
                var click, buttonOptions;
                props = $.isFunction( props ) ?
                    { click: props, text: name } :
                    props;

                // Default to a non-submitting button
                props = $.extend( { type: "button" }, props );

                // Change the context for the click callback to be the main element
                click = props.click;
                buttonOptions = {
                    icon: props.icon,
                    iconPosition: props.iconPosition,
                    showLabel: props.showLabel,

                    // Deprecated options
                    icons: props.icons,
                    text: props.text
                };

                delete props.click;
                delete props.icon;
                delete props.iconPosition;
                delete props.showLabel;

                // Deprecated options
                delete props.icons;
                if ( typeof props.text === "boolean" ) {
                    delete props.text;
                }

                $( "<button></button>", props )
                    .button( buttonOptions )
                    .appendTo( that.uiButtonSet )
                    .on( "click", function() {
                        click.apply( that.element[ 0 ], arguments );
                    } );
            } );
            this._addClass( this.uiDialog, "ui-dialog-buttons" );
            this.uiDialogButtonPane.appendTo( this.uiDialog );
        },

        _makeDraggable: function() {
            var that = this,
                options = this.options;

            function filteredUi( ui ) {
                return {
                    position: ui.position,
                    offset: ui.offset
                };
            }

            this.uiDialog.draggable( {
                cancel: ".ui-dialog-content, .ui-dialog-titlebar-close",
                handle: ".ui-dialog-titlebar",
                containment: "document",
                start: function( event, ui ) {
                    that._addClass( $( this ), "ui-dialog-dragging" );
                    that._blockFrames();
                    that._trigger( "dragStart", event, filteredUi( ui ) );
                },
                drag: function( event, ui ) {
                    that._trigger( "drag", event, filteredUi( ui ) );
                },
                stop: function( event, ui ) {
                    var left = ui.offset.left - that.document.scrollLeft(),
                        top = ui.offset.top - that.document.scrollTop();

                    options.position = {
                        my: "left top",
                        at: "left" + ( left >= 0 ? "+" : "" ) + left + " " +
                        "top" + ( top >= 0 ? "+" : "" ) + top,
                        of: that.window
                    };
                    that._removeClass( $( this ), "ui-dialog-dragging" );
                    that._unblockFrames();
                    that._trigger( "dragStop", event, filteredUi( ui ) );
                }
            } );
        },

        _makeResizable: function() {
            var that = this,
                options = this.options,
                handles = options.resizable,

                // .ui-resizable has position: relative defined in the stylesheet
                // but dialogs have to use absolute or fixed positioning
                position = this.uiDialog.css( "position" ),
                resizeHandles = typeof handles === "string" ?
                    handles :
                    "n,e,s,w,se,sw,ne,nw";

            function filteredUi( ui ) {
                return {
                    originalPosition: ui.originalPosition,
                    originalSize: ui.originalSize,
                    position: ui.position,
                    size: ui.size
                };
            }

            this.uiDialog.resizable( {
                cancel: ".ui-dialog-content",
                containment: "document",
                alsoResize: this.element,
                maxWidth: options.maxWidth,
                maxHeight: options.maxHeight,
                minWidth: options.minWidth,
                minHeight: this._minHeight(),
                handles: resizeHandles,
                start: function( event, ui ) {
                    that._addClass( $( this ), "ui-dialog-resizing" );
                    that._blockFrames();
                    that._trigger( "resizeStart", event, filteredUi( ui ) );
                },
                resize: function( event, ui ) {
                    that._trigger( "resize", event, filteredUi( ui ) );
                },
                stop: function( event, ui ) {
                    var offset = that.uiDialog.offset(),
                        left = offset.left - that.document.scrollLeft(),
                        top = offset.top - that.document.scrollTop();

                    options.height = that.uiDialog.height();
                    options.width = that.uiDialog.width();
                    options.position = {
                        my: "left top",
                        at: "left" + ( left >= 0 ? "+" : "" ) + left + " " +
                        "top" + ( top >= 0 ? "+" : "" ) + top,
                        of: that.window
                    };
                    that._removeClass( $( this ), "ui-dialog-resizing" );
                    that._unblockFrames();
                    that._trigger( "resizeStop", event, filteredUi( ui ) );
                }
            } )
                .css( "position", position );
        },

        _trackFocus: function() {
            this._on( this.widget(), {
                focusin: function( event ) {
                    this._makeFocusTarget();
                    this._focusedElement = $( event.target );
                }
            } );
        },

        _makeFocusTarget: function() {
            this._untrackInstance();
            this._trackingInstances().unshift( this );
        },

        _untrackInstance: function() {
            var instances = this._trackingInstances(),
                exists = $.inArray( this, instances );
            if ( exists !== -1 ) {
                instances.splice( exists, 1 );
            }
        },

        _trackingInstances: function() {
            var instances = this.document.data( "ui-dialog-instances" );
            if ( !instances ) {
                instances = [];
                this.document.data( "ui-dialog-instances", instances );
            }
            return instances;
        },

        _minHeight: function() {
            var options = this.options;

            return options.height === "auto" ?
                options.minHeight :
                Math.min( options.minHeight, options.height );
        },

        _position: function() {

            // Need to show the dialog to get the actual offset in the position plugin
            var isVisible = this.uiDialog.is( ":visible" );
            if ( !isVisible ) {
                this.uiDialog.show();
            }
            this.uiDialog.position( this.options.position );
            if ( !isVisible ) {
                this.uiDialog.hide();
            }
        },

        _setOptions: function( options ) {
            var that = this,
                resize = false,
                resizableOptions = {};

            $.each( options, function( key, value ) {
                that._setOption( key, value );

                if ( key in that.sizeRelatedOptions ) {
                    resize = true;
                }
                if ( key in that.resizableRelatedOptions ) {
                    resizableOptions[ key ] = value;
                }
            } );

            if ( resize ) {
                this._size();
                this._position();
            }
            if ( this.uiDialog.is( ":data(ui-resizable)" ) ) {
                this.uiDialog.resizable( "option", resizableOptions );
            }
        },

        _setOption: function( key, value ) {
            var isDraggable, isResizable,
                uiDialog = this.uiDialog;

            if ( key === "disabled" ) {
                return;
            }

            this._super( key, value );

            if ( key === "appendTo" ) {
                this.uiDialog.appendTo( this._appendTo() );
            }

            if ( key === "buttons" ) {
                this._createButtons();
            }

            if ( key === "closeText" ) {
                this.uiDialogTitlebarClose.button( {

                    // Ensure that we always pass a string
                    label: $( "<a>" ).text( "" + this.options.closeText ).html()
                } );
            }

            if ( key === "draggable" ) {
                isDraggable = uiDialog.is( ":data(ui-draggable)" );
                if ( isDraggable && !value ) {
                    uiDialog.draggable( "destroy" );
                }

                if ( !isDraggable && value ) {
                    this._makeDraggable();
                }
            }

            if ( key === "position" ) {
                this._position();
            }

            if ( key === "resizable" ) {

                // currently resizable, becoming non-resizable
                isResizable = uiDialog.is( ":data(ui-resizable)" );
                if ( isResizable && !value ) {
                    uiDialog.resizable( "destroy" );
                }

                // Currently resizable, changing handles
                if ( isResizable && typeof value === "string" ) {
                    uiDialog.resizable( "option", "handles", value );
                }

                // Currently non-resizable, becoming resizable
                if ( !isResizable && value !== false ) {
                    this._makeResizable();
                }
            }

            if ( key === "title" ) {
                this._title( this.uiDialogTitlebar.find( ".ui-dialog-title" ) );
            }
        },

        _size: function() {

            // If the user has resized the dialog, the .ui-dialog and .ui-dialog-content
            // divs will both have width and height set, so we need to reset them
            var nonContentHeight, minContentHeight, maxContentHeight,
                options = this.options;

            // Reset content sizing
            this.element.show().css( {
                width: "auto",
                minHeight: 0,
                maxHeight: "none",
                height: 0
            } );

            if ( options.minWidth > options.width ) {
                options.width = options.minWidth;
            }

            // Reset wrapper sizing
            // determine the height of all the non-content elements
            nonContentHeight = this.uiDialog.css( {
                height: "auto",
                width: options.width
            } )
                .outerHeight();
            minContentHeight = Math.max( 0, options.minHeight - nonContentHeight );
            maxContentHeight = typeof options.maxHeight === "number" ?
                Math.max( 0, options.maxHeight - nonContentHeight ) :
                "none";

            if ( options.height === "auto" ) {
                this.element.css( {
                    minHeight: minContentHeight,
                    maxHeight: maxContentHeight,
                    height: "auto"
                } );
            } else {
                this.element.height( Math.max( 0, options.height - nonContentHeight ) );
            }

            if ( this.uiDialog.is( ":data(ui-resizable)" ) ) {
                this.uiDialog.resizable( "option", "minHeight", this._minHeight() );
            }
        },

        _blockFrames: function() {
            this.iframeBlocks = this.document.find( "iframe" ).map( function() {
                var iframe = $( this );

                return $( "<div>" )
                    .css( {
                        position: "absolute",
                        width: iframe.outerWidth(),
                        height: iframe.outerHeight()
                    } )
                    .appendTo( iframe.parent() )
                    .offset( iframe.offset() )[ 0 ];
            } );
        },

        _unblockFrames: function() {
            if ( this.iframeBlocks ) {
                this.iframeBlocks.remove();
                delete this.iframeBlocks;
            }
        },

        _allowInteraction: function( event ) {
            if ( $( event.target ).closest( ".ui-dialog" ).length ) {
                return true;
            }

            // TODO: Remove hack when datepicker implements
            // the .ui-front logic (#8989)
            return !!$( event.target ).closest( ".ui-datepicker" ).length;
        },

        _createOverlay: function() {
            if ( !this.options.modal ) {
                return;
            }

            // We use a delay in case the overlay is created from an
            // event that we're going to be cancelling (#2804)
            var isOpening = true;
            this._delay( function() {
                isOpening = false;
            } );

            if ( !this.document.data( "ui-dialog-overlays" ) ) {

                // Prevent use of anchors and inputs
                // Using _on() for an event handler shared across many instances is
                // safe because the dialogs stack and must be closed in reverse order
                this._on( this.document, {
                    focusin: function( event ) {
                        if ( isOpening ) {
                            return;
                        }

                        if ( !this._allowInteraction( event ) ) {
                            event.preventDefault();
                            this._trackingInstances()[ 0 ]._focusTabbable();
                        }
                    }
                } );
            }

            this.overlay = $( "<div>" )
                .appendTo( this._appendTo() );

            this._addClass( this.overlay, null, "ui-widget-overlay ui-front" );
            this._on( this.overlay, {
                mousedown: "_keepFocus"
            } );
            this.document.data( "ui-dialog-overlays",
                ( this.document.data( "ui-dialog-overlays" ) || 0 ) + 1 );
        },

        _destroyOverlay: function() {
            if ( !this.options.modal ) {
                return;
            }

            if ( this.overlay ) {
                var overlays = this.document.data( "ui-dialog-overlays" ) - 1;

                if ( !overlays ) {
                    this._off( this.document, "focusin" );
                    this.document.removeData( "ui-dialog-overlays" );
                } else {
                    this.document.data( "ui-dialog-overlays", overlays );
                }

                this.overlay.remove();
                this.overlay = null;
            }
        }
    } );

// DEPRECATED
// TODO: switch return back to widget declaration at top of file when this is removed
    if ( $.uiBackCompat !== false ) {

        // Backcompat for dialogClass option
        $.widget( "ui.dialog", $.ui.dialog, {
            options: {
                dialogClass: ""
            },
            _createWrapper: function() {
                this._super();
                this.uiDialog.addClass( this.options.dialogClass );
            },
            _setOption: function( key, value ) {
                if ( key === "dialogClass" ) {
                    this.uiDialog
                        .removeClass( this.options.dialogClass )
                        .addClass( value );
                }
                this._superApply( arguments );
            }
        } );
    }

    var widgetsDialog = $.ui.dialog;


    /*!
     * jQuery UI Progressbar 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Progressbar
//>>group: Widgets
// jscs:disable maximumLineLength
//>>description: Displays a status indicator for loading state, standard percentage, and other progress indicators.
// jscs:enable maximumLineLength
//>>docs: http://api.jqueryui.com/progressbar/
//>>demos: http://jqueryui.com/progressbar/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/progressbar.css
//>>css.theme: ../../themes/base/theme.css



    var widgetsProgressbar = $.widget( "ui.progressbar", {
        version: "1.12.1",
        options: {
            classes: {
                "ui-progressbar": "ui-corner-all",
                "ui-progressbar-value": "ui-corner-left",
                "ui-progressbar-complete": "ui-corner-right"
            },
            max: 100,
            value: 0,

            change: null,
            complete: null
        },

        min: 0,

        _create: function() {

            // Constrain initial value
            this.oldValue = this.options.value = this._constrainedValue();

            this.element.attr( {

                // Only set static values; aria-valuenow and aria-valuemax are
                // set inside _refreshValue()
                role: "progressbar",
                "aria-valuemin": this.min
            } );
            this._addClass( "ui-progressbar", "ui-widget ui-widget-content" );

            this.valueDiv = $( "<div>" ).appendTo( this.element );
            this._addClass( this.valueDiv, "ui-progressbar-value", "ui-widget-header" );
            this._refreshValue();
        },

        _destroy: function() {
            this.element.removeAttr( "role aria-valuemin aria-valuemax aria-valuenow" );

            this.valueDiv.remove();
        },

        value: function( newValue ) {
            if ( newValue === undefined ) {
                return this.options.value;
            }

            this.options.value = this._constrainedValue( newValue );
            this._refreshValue();
        },

        _constrainedValue: function( newValue ) {
            if ( newValue === undefined ) {
                newValue = this.options.value;
            }

            this.indeterminate = newValue === false;

            // Sanitize value
            if ( typeof newValue !== "number" ) {
                newValue = 0;
            }

            return this.indeterminate ? false :
                Math.min( this.options.max, Math.max( this.min, newValue ) );
        },

        _setOptions: function( options ) {

            // Ensure "value" option is set after other values (like max)
            var value = options.value;
            delete options.value;

            this._super( options );

            this.options.value = this._constrainedValue( value );
            this._refreshValue();
        },

        _setOption: function( key, value ) {
            if ( key === "max" ) {

                // Don't allow a max less than min
                value = Math.max( this.min, value );
            }
            this._super( key, value );
        },

        _setOptionDisabled: function( value ) {
            this._super( value );

            this.element.attr( "aria-disabled", value );
            this._toggleClass( null, "ui-state-disabled", !!value );
        },

        _percentage: function() {
            return this.indeterminate ?
                100 :
                100 * ( this.options.value - this.min ) / ( this.options.max - this.min );
        },

        _refreshValue: function() {
            var value = this.options.value,
                percentage = this._percentage();

            this.valueDiv
                .toggle( this.indeterminate || value > this.min )
                .width( percentage.toFixed( 0 ) + "%" );

            this
                ._toggleClass( this.valueDiv, "ui-progressbar-complete", null,
                    value === this.options.max )
                ._toggleClass( "ui-progressbar-indeterminate", null, this.indeterminate );

            if ( this.indeterminate ) {
                this.element.removeAttr( "aria-valuenow" );
                if ( !this.overlayDiv ) {
                    this.overlayDiv = $( "<div>" ).appendTo( this.valueDiv );
                    this._addClass( this.overlayDiv, "ui-progressbar-overlay" );
                }
            } else {
                this.element.attr( {
                    "aria-valuemax": this.options.max,
                    "aria-valuenow": value
                } );
                if ( this.overlayDiv ) {
                    this.overlayDiv.remove();
                    this.overlayDiv = null;
                }
            }

            if ( this.oldValue !== value ) {
                this.oldValue = value;
                this._trigger( "change" );
            }
            if ( value === this.options.max ) {
                this._trigger( "complete" );
            }
        }
    } );


    /*!
     * jQuery UI Selectmenu 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Selectmenu
//>>group: Widgets
// jscs:disable maximumLineLength
//>>description: Duplicates and extends the functionality of a native HTML select element, allowing it to be customizable in behavior and appearance far beyond the limitations of a native select.
// jscs:enable maximumLineLength
//>>docs: http://api.jqueryui.com/selectmenu/
//>>demos: http://jqueryui.com/selectmenu/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/selectmenu.css, ../../themes/base/button.css
//>>css.theme: ../../themes/base/theme.css



    var widgetsSelectmenu = $.widget( "ui.selectmenu", [ $.ui.formResetMixin, {
        version: "1.12.1",
        defaultElement: "<select>",
        options: {
            appendTo: null,
            classes: {
                "ui-selectmenu-button-open": "ui-corner-top",
                "ui-selectmenu-button-closed": "ui-corner-all"
            },
            disabled: null,
            icons: {
                button: "ui-icon-triangle-1-s"
            },
            position: {
                my: "left top",
                at: "left bottom",
                collision: "none"
            },
            width: false,

            // Callbacks
            change: null,
            close: null,
            focus: null,
            open: null,
            select: null
        },

        _create: function() {
            var selectmenuId = this.element.uniqueId().attr( "id" );
            this.ids = {
                element: selectmenuId,
                button: selectmenuId + "-button",
                menu: selectmenuId + "-menu"
            };

            this._drawButton();
            this._drawMenu();
            this._bindFormResetHandler();

            this._rendered = false;
            this.menuItems = $();
        },

        _drawButton: function() {
            var icon,
                that = this,
                item = this._parseOption(
                    this.element.find( "option:selected" ),
                    this.element[ 0 ].selectedIndex
                );

            // Associate existing label with the new button
            this.labels = this.element.labels().attr( "for", this.ids.button );
            this._on( this.labels, {
                click: function( event ) {
                    this.button.focus();
                    event.preventDefault();
                }
            } );

            // Hide original select element
            this.element.hide();

            // Create button
            this.button = $( "<span>", {
                tabindex: this.options.disabled ? -1 : 0,
                id: this.ids.button,
                role: "combobox",
                "aria-expanded": "false",
                "aria-autocomplete": "list",
                "aria-owns": this.ids.menu,
                "aria-haspopup": "true",
                title: this.element.attr( "title" )
            } )
                .insertAfter( this.element );

            this._addClass( this.button, "ui-selectmenu-button ui-selectmenu-button-closed",
                "ui-button ui-widget" );

            icon = $( "<span>" ).appendTo( this.button );
            this._addClass( icon, "ui-selectmenu-icon", "ui-icon " + this.options.icons.button );
            this.buttonItem = this._renderButtonItem( item )
                .appendTo( this.button );

            if ( this.options.width !== false ) {
                this._resizeButton();
            }

            this._on( this.button, this._buttonEvents );
            this.button.one( "focusin", function() {

                // Delay rendering the menu items until the button receives focus.
                // The menu may have already been rendered via a programmatic open.
                if ( !that._rendered ) {
                    that._refreshMenu();
                }
            } );
        },

        _drawMenu: function() {
            var that = this;

            // Create menu
            this.menu = $( "<ul>", {
                "aria-hidden": "true",
                "aria-labelledby": this.ids.button,
                id: this.ids.menu
            } );

            // Wrap menu
            this.menuWrap = $( "<div>" ).append( this.menu );
            this._addClass( this.menuWrap, "ui-selectmenu-menu", "ui-front" );
            this.menuWrap.appendTo( this._appendTo() );

            // Initialize menu widget
            this.menuInstance = this.menu
                .menu( {
                    classes: {
                        "ui-menu": "ui-corner-bottom"
                    },
                    role: "listbox",
                    select: function( event, ui ) {
                        event.preventDefault();

                        // Support: IE8
                        // If the item was selected via a click, the text selection
                        // will be destroyed in IE
                        that._setSelection();

                        that._select( ui.item.data( "ui-selectmenu-item" ), event );
                    },
                    focus: function( event, ui ) {
                        var item = ui.item.data( "ui-selectmenu-item" );

                        // Prevent inital focus from firing and check if its a newly focused item
                        if ( that.focusIndex != null && item.index !== that.focusIndex ) {
                            that._trigger( "focus", event, { item: item } );
                            if ( !that.isOpen ) {
                                that._select( item, event );
                            }
                        }
                        that.focusIndex = item.index;

                        that.button.attr( "aria-activedescendant",
                            that.menuItems.eq( item.index ).attr( "id" ) );
                    }
                } )
                .menu( "instance" );

            // Don't close the menu on mouseleave
            this.menuInstance._off( this.menu, "mouseleave" );

            // Cancel the menu's collapseAll on document click
            this.menuInstance._closeOnDocumentClick = function() {
                return false;
            };

            // Selects often contain empty items, but never contain dividers
            this.menuInstance._isDivider = function() {
                return false;
            };
        },

        refresh: function() {
            this._refreshMenu();
            this.buttonItem.replaceWith(
                this.buttonItem = this._renderButtonItem(

                    // Fall back to an empty object in case there are no options
                    this._getSelectedItem().data( "ui-selectmenu-item" ) || {}
                )
            );
            if ( this.options.width === null ) {
                this._resizeButton();
            }
        },

        _refreshMenu: function() {
            var item,
                options = this.element.find( "option" );

            this.menu.empty();

            this._parseOptions( options );
            this._renderMenu( this.menu, this.items );

            this.menuInstance.refresh();
            this.menuItems = this.menu.find( "li" )
                .not( ".ui-selectmenu-optgroup" )
                .find( ".ui-menu-item-wrapper" );

            this._rendered = true;

            if ( !options.length ) {
                return;
            }

            item = this._getSelectedItem();

            // Update the menu to have the correct item focused
            this.menuInstance.focus( null, item );
            this._setAria( item.data( "ui-selectmenu-item" ) );

            // Set disabled state
            this._setOption( "disabled", this.element.prop( "disabled" ) );
        },

        open: function( event ) {
            if ( this.options.disabled ) {
                return;
            }

            // If this is the first time the menu is being opened, render the items
            if ( !this._rendered ) {
                this._refreshMenu();
            } else {

                // Menu clears focus on close, reset focus to selected item
                this._removeClass( this.menu.find( ".ui-state-active" ), null, "ui-state-active" );
                this.menuInstance.focus( null, this._getSelectedItem() );
            }

            // If there are no options, don't open the menu
            if ( !this.menuItems.length ) {
                return;
            }

            this.isOpen = true;
            this._toggleAttr();
            this._resizeMenu();
            this._position();

            this._on( this.document, this._documentClick );

            this._trigger( "open", event );
        },

        _position: function() {
            this.menuWrap.position( $.extend( { of: this.button }, this.options.position ) );
        },

        close: function( event ) {
            if ( !this.isOpen ) {
                return;
            }

            this.isOpen = false;
            this._toggleAttr();

            this.range = null;
            this._off( this.document );

            this._trigger( "close", event );
        },

        widget: function() {
            return this.button;
        },

        menuWidget: function() {
            return this.menu;
        },

        _renderButtonItem: function( item ) {
            var buttonItem = $( "<span>" );

            this._setText( buttonItem, item.label );
            this._addClass( buttonItem, "ui-selectmenu-text" );

            return buttonItem;
        },

        _renderMenu: function( ul, items ) {
            var that = this,
                currentOptgroup = "";

            $.each( items, function( index, item ) {
                var li;

                if ( item.optgroup !== currentOptgroup ) {
                    li = $( "<li>", {
                        text: item.optgroup
                    } );
                    that._addClass( li, "ui-selectmenu-optgroup", "ui-menu-divider" +
                        ( item.element.parent( "optgroup" ).prop( "disabled" ) ?
                            " ui-state-disabled" :
                            "" ) );

                    li.appendTo( ul );

                    currentOptgroup = item.optgroup;
                }

                that._renderItemData( ul, item );
            } );
        },

        _renderItemData: function( ul, item ) {
            return this._renderItem( ul, item ).data( "ui-selectmenu-item", item );
        },

        _renderItem: function( ul, item ) {
            var li = $( "<li>" ),
                wrapper = $( "<div>", {
                    title: item.element.attr( "title" )
                } );

            if ( item.disabled ) {
                this._addClass( li, null, "ui-state-disabled" );
            }
            this._setText( wrapper, item.label );

            return li.append( wrapper ).appendTo( ul );
        },

        _setText: function( element, value ) {
            if ( value ) {
                element.text( value );
            } else {
                element.html( "&#160;" );
            }
        },

        _move: function( direction, event ) {
            var item, next,
                filter = ".ui-menu-item";

            if ( this.isOpen ) {
                item = this.menuItems.eq( this.focusIndex ).parent( "li" );
            } else {
                item = this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" );
                filter += ":not(.ui-state-disabled)";
            }

            if ( direction === "first" || direction === "last" ) {
                next = item[ direction === "first" ? "prevAll" : "nextAll" ]( filter ).eq( -1 );
            } else {
                next = item[ direction + "All" ]( filter ).eq( 0 );
            }

            if ( next.length ) {
                this.menuInstance.focus( event, next );
            }
        },

        _getSelectedItem: function() {
            return this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" );
        },

        _toggle: function( event ) {
            this[ this.isOpen ? "close" : "open" ]( event );
        },

        _setSelection: function() {
            var selection;

            if ( !this.range ) {
                return;
            }

            if ( window.getSelection ) {
                selection = window.getSelection();
                selection.removeAllRanges();
                selection.addRange( this.range );

                // Support: IE8
            } else {
                this.range.select();
            }

            // Support: IE
            // Setting the text selection kills the button focus in IE, but
            // restoring the focus doesn't kill the selection.
            this.button.focus();
        },

        _documentClick: {
            mousedown: function( event ) {
                if ( !this.isOpen ) {
                    return;
                }

                if ( !$( event.target ).closest( ".ui-selectmenu-menu, #" +
                        $.ui.escapeSelector( this.ids.button ) ).length ) {
                    this.close( event );
                }
            }
        },

        _buttonEvents: {

            // Prevent text selection from being reset when interacting with the selectmenu (#10144)
            mousedown: function() {
                var selection;

                if ( window.getSelection ) {
                    selection = window.getSelection();
                    if ( selection.rangeCount ) {
                        this.range = selection.getRangeAt( 0 );
                    }

                    // Support: IE8
                } else {
                    this.range = document.selection.createRange();
                }
            },

            click: function( event ) {
                this._setSelection();
                this._toggle( event );
            },

            keydown: function( event ) {
                var preventDefault = true;
                switch ( event.keyCode ) {
                    case $.ui.keyCode.TAB:
                    case $.ui.keyCode.ESCAPE:
                        this.close( event );
                        preventDefault = false;
                        break;
                    case $.ui.keyCode.ENTER:
                        if ( this.isOpen ) {
                            this._selectFocusedItem( event );
                        }
                        break;
                    case $.ui.keyCode.UP:
                        if ( event.altKey ) {
                            this._toggle( event );
                        } else {
                            this._move( "prev", event );
                        }
                        break;
                    case $.ui.keyCode.DOWN:
                        if ( event.altKey ) {
                            this._toggle( event );
                        } else {
                            this._move( "next", event );
                        }
                        break;
                    case $.ui.keyCode.SPACE:
                        if ( this.isOpen ) {
                            this._selectFocusedItem( event );
                        } else {
                            this._toggle( event );
                        }
                        break;
                    case $.ui.keyCode.LEFT:
                        this._move( "prev", event );
                        break;
                    case $.ui.keyCode.RIGHT:
                        this._move( "next", event );
                        break;
                    case $.ui.keyCode.HOME:
                    case $.ui.keyCode.PAGE_UP:
                        this._move( "first", event );
                        break;
                    case $.ui.keyCode.END:
                    case $.ui.keyCode.PAGE_DOWN:
                        this._move( "last", event );
                        break;
                    default:
                        this.menu.trigger( event );
                        preventDefault = false;
                }

                if ( preventDefault ) {
                    event.preventDefault();
                }
            }
        },

        _selectFocusedItem: function( event ) {
            var item = this.menuItems.eq( this.focusIndex ).parent( "li" );
            if ( !item.hasClass( "ui-state-disabled" ) ) {
                this._select( item.data( "ui-selectmenu-item" ), event );
            }
        },

        _select: function( item, event ) {
            var oldIndex = this.element[ 0 ].selectedIndex;

            // Change native select element
            this.element[ 0 ].selectedIndex = item.index;
            this.buttonItem.replaceWith( this.buttonItem = this._renderButtonItem( item ) );
            this._setAria( item );
            this._trigger( "select", event, { item: item } );

            if ( item.index !== oldIndex ) {
                this._trigger( "change", event, { item: item } );
            }

            this.close( event );
        },

        _setAria: function( item ) {
            var id = this.menuItems.eq( item.index ).attr( "id" );

            this.button.attr( {
                "aria-labelledby": id,
                "aria-activedescendant": id
            } );
            this.menu.attr( "aria-activedescendant", id );
        },

        _setOption: function( key, value ) {
            if ( key === "icons" ) {
                var icon = this.button.find( "span.ui-icon" );
                this._removeClass( icon, null, this.options.icons.button )
                    ._addClass( icon, null, value.button );
            }

            this._super( key, value );

            if ( key === "appendTo" ) {
                this.menuWrap.appendTo( this._appendTo() );
            }

            if ( key === "width" ) {
                this._resizeButton();
            }
        },

        _setOptionDisabled: function( value ) {
            this._super( value );

            this.menuInstance.option( "disabled", value );
            this.button.attr( "aria-disabled", value );
            this._toggleClass( this.button, null, "ui-state-disabled", value );

            this.element.prop( "disabled", value );
            if ( value ) {
                this.button.attr( "tabindex", -1 );
                this.close();
            } else {
                this.button.attr( "tabindex", 0 );
            }
        },

        _appendTo: function() {
            var element = this.options.appendTo;

            if ( element ) {
                element = element.jquery || element.nodeType ?
                    $( element ) :
                    this.document.find( element ).eq( 0 );
            }

            if ( !element || !element[ 0 ] ) {
                element = this.element.closest( ".ui-front, dialog" );
            }

            if ( !element.length ) {
                element = this.document[ 0 ].body;
            }

            return element;
        },

        _toggleAttr: function() {
            this.button.attr( "aria-expanded", this.isOpen );

            // We can't use two _toggleClass() calls here, because we need to make sure
            // we always remove classes first and add them second, otherwise if both classes have the
            // same theme class, it will be removed after we add it.
            this._removeClass( this.button, "ui-selectmenu-button-" +
                ( this.isOpen ? "closed" : "open" ) )
                ._addClass( this.button, "ui-selectmenu-button-" +
                    ( this.isOpen ? "open" : "closed" ) )
                ._toggleClass( this.menuWrap, "ui-selectmenu-open", null, this.isOpen );

            this.menu.attr( "aria-hidden", !this.isOpen );
        },

        _resizeButton: function() {
            var width = this.options.width;

            // For `width: false`, just remove inline style and stop
            if ( width === false ) {
                this.button.css( "width", "" );
                return;
            }

            // For `width: null`, match the width of the original element
            if ( width === null ) {
                width = this.element.show().outerWidth();
                this.element.hide();
            }

            this.button.outerWidth( width );
        },

        _resizeMenu: function() {
            this.menu.outerWidth( Math.max(
                this.button.outerWidth(),

                // Support: IE10
                // IE10 wraps long text (possibly a rounding bug)
                // so we add 1px to avoid the wrapping
                this.menu.width( "" ).outerWidth() + 1
            ) );
        },

        _getCreateOptions: function() {
            var options = this._super();

            options.disabled = this.element.prop( "disabled" );

            return options;
        },

        _parseOptions: function( options ) {
            var that = this,
                data = [];
            options.each( function( index, item ) {
                data.push( that._parseOption( $( item ), index ) );
            } );
            this.items = data;
        },

        _parseOption: function( option, index ) {
            var optgroup = option.parent( "optgroup" );

            return {
                element: option,
                index: index,
                value: option.val(),
                label: option.text(),
                optgroup: optgroup.attr( "label" ) || "",
                disabled: optgroup.prop( "disabled" ) || option.prop( "disabled" )
            };
        },

        _destroy: function() {
            this._unbindFormResetHandler();
            this.menuWrap.remove();
            this.button.remove();
            this.element.show();
            this.element.removeUniqueId();
            this.labels.attr( "for", this.ids.element );
        }
    } ] );


    /*!
     * jQuery UI Slider 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Slider
//>>group: Widgets
//>>description: Displays a flexible slider with ranges and accessibility via keyboard.
//>>docs: http://api.jqueryui.com/slider/
//>>demos: http://jqueryui.com/slider/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/slider.css
//>>css.theme: ../../themes/base/theme.css



    var widgetsSlider = $.widget( "ui.slider", $.ui.mouse, {
        version: "1.12.1",
        widgetEventPrefix: "slide",

        options: {
            animate: false,
            classes: {
                "ui-slider": "ui-corner-all",
                "ui-slider-handle": "ui-corner-all",

                // Note: ui-widget-header isn't the most fittingly semantic framework class for this
                // element, but worked best visually with a variety of themes
                "ui-slider-range": "ui-corner-all ui-widget-header"
            },
            distance: 0,
            max: 100,
            min: 0,
            orientation: "horizontal",
            range: false,
            step: 1,
            value: 0,
            values: null,

            // Callbacks
            change: null,
            slide: null,
            start: null,
            stop: null
        },

        // Number of pages in a slider
        // (how many times can you page up/down to go through the whole range)
        numPages: 5,

        _create: function() {
            this._keySliding = false;
            this._mouseSliding = false;
            this._animateOff = true;
            this._handleIndex = null;
            this._detectOrientation();
            this._mouseInit();
            this._calculateNewMax();

            this._addClass( "ui-slider ui-slider-" + this.orientation,
                "ui-widget ui-widget-content" );

            this._refresh();

            this._animateOff = false;
        },

        _refresh: function() {
            this._createRange();
            this._createHandles();
            this._setupEvents();
            this._refreshValue();
        },

        _createHandles: function() {
            var i, handleCount,
                options = this.options,
                existingHandles = this.element.find( ".ui-slider-handle" ),
                handle = "<span tabindex='0'></span>",
                handles = [];

            handleCount = ( options.values && options.values.length ) || 1;

            if ( existingHandles.length > handleCount ) {
                existingHandles.slice( handleCount ).remove();
                existingHandles = existingHandles.slice( 0, handleCount );
            }

            for ( i = existingHandles.length; i < handleCount; i++ ) {
                handles.push( handle );
            }

            this.handles = existingHandles.add( $( handles.join( "" ) ).appendTo( this.element ) );

            this._addClass( this.handles, "ui-slider-handle", "ui-state-default" );

            this.handle = this.handles.eq( 0 );

            this.handles.each( function( i ) {
                $( this )
                    .data( "ui-slider-handle-index", i )
                    .attr( "tabIndex", 0 );
            } );
        },

        _createRange: function() {
            var options = this.options;

            if ( options.range ) {
                if ( options.range === true ) {
                    if ( !options.values ) {
                        options.values = [ this._valueMin(), this._valueMin() ];
                    } else if ( options.values.length && options.values.length !== 2 ) {
                        options.values = [ options.values[ 0 ], options.values[ 0 ] ];
                    } else if ( $.isArray( options.values ) ) {
                        options.values = options.values.slice( 0 );
                    }
                }

                if ( !this.range || !this.range.length ) {
                    this.range = $( "<div>" )
                        .appendTo( this.element );

                    this._addClass( this.range, "ui-slider-range" );
                } else {
                    this._removeClass( this.range, "ui-slider-range-min ui-slider-range-max" );

                    // Handle range switching from true to min/max
                    this.range.css( {
                        "left": "",
                        "bottom": ""
                    } );
                }
                if ( options.range === "min" || options.range === "max" ) {
                    this._addClass( this.range, "ui-slider-range-" + options.range );
                }
            } else {
                if ( this.range ) {
                    this.range.remove();
                }
                this.range = null;
            }
        },

        _setupEvents: function() {
            this._off( this.handles );
            this._on( this.handles, this._handleEvents );
            this._hoverable( this.handles );
            this._focusable( this.handles );
        },

        _destroy: function() {
            this.handles.remove();
            if ( this.range ) {
                this.range.remove();
            }

            this._mouseDestroy();
        },

        _mouseCapture: function( event ) {
            var position, normValue, distance, closestHandle, index, allowed, offset, mouseOverHandle,
                that = this,
                o = this.options;

            if ( o.disabled ) {
                return false;
            }

            this.elementSize = {
                width: this.element.outerWidth(),
                height: this.element.outerHeight()
            };
            this.elementOffset = this.element.offset();

            position = { x: event.pageX, y: event.pageY };
            normValue = this._normValueFromMouse( position );
            distance = this._valueMax() - this._valueMin() + 1;
            this.handles.each( function( i ) {
                var thisDistance = Math.abs( normValue - that.values( i ) );
                if ( ( distance > thisDistance ) ||
                    ( distance === thisDistance &&
                    ( i === that._lastChangedValue || that.values( i ) === o.min ) ) ) {
                    distance = thisDistance;
                    closestHandle = $( this );
                    index = i;
                }
            } );

            allowed = this._start( event, index );
            if ( allowed === false ) {
                return false;
            }
            this._mouseSliding = true;

            this._handleIndex = index;

            this._addClass( closestHandle, null, "ui-state-active" );
            closestHandle.trigger( "focus" );

            offset = closestHandle.offset();
            mouseOverHandle = !$( event.target ).parents().addBack().is( ".ui-slider-handle" );
            this._clickOffset = mouseOverHandle ? { left: 0, top: 0 } : {
                left: event.pageX - offset.left - ( closestHandle.width() / 2 ),
                top: event.pageY - offset.top -
                ( closestHandle.height() / 2 ) -
                ( parseInt( closestHandle.css( "borderTopWidth" ), 10 ) || 0 ) -
                ( parseInt( closestHandle.css( "borderBottomWidth" ), 10 ) || 0 ) +
                ( parseInt( closestHandle.css( "marginTop" ), 10 ) || 0 )
            };

            if ( !this.handles.hasClass( "ui-state-hover" ) ) {
                this._slide( event, index, normValue );
            }
            this._animateOff = true;
            return true;
        },

        _mouseStart: function() {
            return true;
        },

        _mouseDrag: function( event ) {
            var position = { x: event.pageX, y: event.pageY },
                normValue = this._normValueFromMouse( position );

            this._slide( event, this._handleIndex, normValue );

            return false;
        },

        _mouseStop: function( event ) {
            this._removeClass( this.handles, null, "ui-state-active" );
            this._mouseSliding = false;

            this._stop( event, this._handleIndex );
            this._change( event, this._handleIndex );

            this._handleIndex = null;
            this._clickOffset = null;
            this._animateOff = false;

            return false;
        },

        _detectOrientation: function() {
            this.orientation = ( this.options.orientation === "vertical" ) ? "vertical" : "horizontal";
        },

        _normValueFromMouse: function( position ) {
            var pixelTotal,
                pixelMouse,
                percentMouse,
                valueTotal,
                valueMouse;

            if ( this.orientation === "horizontal" ) {
                pixelTotal = this.elementSize.width;
                pixelMouse = position.x - this.elementOffset.left -
                    ( this._clickOffset ? this._clickOffset.left : 0 );
            } else {
                pixelTotal = this.elementSize.height;
                pixelMouse = position.y - this.elementOffset.top -
                    ( this._clickOffset ? this._clickOffset.top : 0 );
            }

            percentMouse = ( pixelMouse / pixelTotal );
            if ( percentMouse > 1 ) {
                percentMouse = 1;
            }
            if ( percentMouse < 0 ) {
                percentMouse = 0;
            }
            if ( this.orientation === "vertical" ) {
                percentMouse = 1 - percentMouse;
            }

            valueTotal = this._valueMax() - this._valueMin();
            valueMouse = this._valueMin() + percentMouse * valueTotal;

            return this._trimAlignValue( valueMouse );
        },

        _uiHash: function( index, value, values ) {
            var uiHash = {
                handle: this.handles[ index ],
                handleIndex: index,
                value: value !== undefined ? value : this.value()
            };

            if ( this._hasMultipleValues() ) {
                uiHash.value = value !== undefined ? value : this.values( index );
                uiHash.values = values || this.values();
            }

            return uiHash;
        },

        _hasMultipleValues: function() {
            return this.options.values && this.options.values.length;
        },

        _start: function( event, index ) {
            return this._trigger( "start", event, this._uiHash( index ) );
        },

        _slide: function( event, index, newVal ) {
            var allowed, otherVal,
                currentValue = this.value(),
                newValues = this.values();

            if ( this._hasMultipleValues() ) {
                otherVal = this.values( index ? 0 : 1 );
                currentValue = this.values( index );

                if ( this.options.values.length === 2 && this.options.range === true ) {
                    newVal =  index === 0 ? Math.min( otherVal, newVal ) : Math.max( otherVal, newVal );
                }

                newValues[ index ] = newVal;
            }

            if ( newVal === currentValue ) {
                return;
            }

            allowed = this._trigger( "slide", event, this._uiHash( index, newVal, newValues ) );

            // A slide can be canceled by returning false from the slide callback
            if ( allowed === false ) {
                return;
            }

            if ( this._hasMultipleValues() ) {
                this.values( index, newVal );
            } else {
                this.value( newVal );
            }
        },

        _stop: function( event, index ) {
            this._trigger( "stop", event, this._uiHash( index ) );
        },

        _change: function( event, index ) {
            if ( !this._keySliding && !this._mouseSliding ) {

                //store the last changed value index for reference when handles overlap
                this._lastChangedValue = index;
                this._trigger( "change", event, this._uiHash( index ) );
            }
        },

        value: function( newValue ) {
            if ( arguments.length ) {
                this.options.value = this._trimAlignValue( newValue );
                this._refreshValue();
                this._change( null, 0 );
                return;
            }

            return this._value();
        },

        values: function( index, newValue ) {
            var vals,
                newValues,
                i;

            if ( arguments.length > 1 ) {
                this.options.values[ index ] = this._trimAlignValue( newValue );
                this._refreshValue();
                this._change( null, index );
                return;
            }

            if ( arguments.length ) {
                if ( $.isArray( arguments[ 0 ] ) ) {
                    vals = this.options.values;
                    newValues = arguments[ 0 ];
                    for ( i = 0; i < vals.length; i += 1 ) {
                        vals[ i ] = this._trimAlignValue( newValues[ i ] );
                        this._change( null, i );
                    }
                    this._refreshValue();
                } else {
                    if ( this._hasMultipleValues() ) {
                        return this._values( index );
                    } else {
                        return this.value();
                    }
                }
            } else {
                return this._values();
            }
        },

        _setOption: function( key, value ) {
            var i,
                valsLength = 0;

            if ( key === "range" && this.options.range === true ) {
                if ( value === "min" ) {
                    this.options.value = this._values( 0 );
                    this.options.values = null;
                } else if ( value === "max" ) {
                    this.options.value = this._values( this.options.values.length - 1 );
                    this.options.values = null;
                }
            }

            if ( $.isArray( this.options.values ) ) {
                valsLength = this.options.values.length;
            }

            this._super( key, value );

            switch ( key ) {
                case "orientation":
                    this._detectOrientation();
                    this._removeClass( "ui-slider-horizontal ui-slider-vertical" )
                        ._addClass( "ui-slider-" + this.orientation );
                    this._refreshValue();
                    if ( this.options.range ) {
                        this._refreshRange( value );
                    }

                    // Reset positioning from previous orientation
                    this.handles.css( value === "horizontal" ? "bottom" : "left", "" );
                    break;
                case "value":
                    this._animateOff = true;
                    this._refreshValue();
                    this._change( null, 0 );
                    this._animateOff = false;
                    break;
                case "values":
                    this._animateOff = true;
                    this._refreshValue();

                    // Start from the last handle to prevent unreachable handles (#9046)
                    for ( i = valsLength - 1; i >= 0; i-- ) {
                        this._change( null, i );
                    }
                    this._animateOff = false;
                    break;
                case "step":
                case "min":
                case "max":
                    this._animateOff = true;
                    this._calculateNewMax();
                    this._refreshValue();
                    this._animateOff = false;
                    break;
                case "range":
                    this._animateOff = true;
                    this._refresh();
                    this._animateOff = false;
                    break;
            }
        },

        _setOptionDisabled: function( value ) {
            this._super( value );

            this._toggleClass( null, "ui-state-disabled", !!value );
        },

        //internal value getter
        // _value() returns value trimmed by min and max, aligned by step
        _value: function() {
            var val = this.options.value;
            val = this._trimAlignValue( val );

            return val;
        },

        //internal values getter
        // _values() returns array of values trimmed by min and max, aligned by step
        // _values( index ) returns single value trimmed by min and max, aligned by step
        _values: function( index ) {
            var val,
                vals,
                i;

            if ( arguments.length ) {
                val = this.options.values[ index ];
                val = this._trimAlignValue( val );

                return val;
            } else if ( this._hasMultipleValues() ) {

                // .slice() creates a copy of the array
                // this copy gets trimmed by min and max and then returned
                vals = this.options.values.slice();
                for ( i = 0; i < vals.length; i += 1 ) {
                    vals[ i ] = this._trimAlignValue( vals[ i ] );
                }

                return vals;
            } else {
                return [];
            }
        },

        // Returns the step-aligned value that val is closest to, between (inclusive) min and max
        _trimAlignValue: function( val ) {
            if ( val <= this._valueMin() ) {
                return this._valueMin();
            }
            if ( val >= this._valueMax() ) {
                return this._valueMax();
            }
            var step = ( this.options.step > 0 ) ? this.options.step : 1,
                valModStep = ( val - this._valueMin() ) % step,
                alignValue = val - valModStep;

            if ( Math.abs( valModStep ) * 2 >= step ) {
                alignValue += ( valModStep > 0 ) ? step : ( -step );
            }

            // Since JavaScript has problems with large floats, round
            // the final value to 5 digits after the decimal point (see #4124)
            return parseFloat( alignValue.toFixed( 5 ) );
        },

        _calculateNewMax: function() {
            var max = this.options.max,
                min = this._valueMin(),
                step = this.options.step,
                aboveMin = Math.round( ( max - min ) / step ) * step;
            max = aboveMin + min;
            if ( max > this.options.max ) {

                //If max is not divisible by step, rounding off may increase its value
                max -= step;
            }
            this.max = parseFloat( max.toFixed( this._precision() ) );
        },

        _precision: function() {
            var precision = this._precisionOf( this.options.step );
            if ( this.options.min !== null ) {
                precision = Math.max( precision, this._precisionOf( this.options.min ) );
            }
            return precision;
        },

        _precisionOf: function( num ) {
            var str = num.toString(),
                decimal = str.indexOf( "." );
            return decimal === -1 ? 0 : str.length - decimal - 1;
        },

        _valueMin: function() {
            return this.options.min;
        },

        _valueMax: function() {
            return this.max;
        },

        _refreshRange: function( orientation ) {
            if ( orientation === "vertical" ) {
                this.range.css( { "width": "", "left": "" } );
            }
            if ( orientation === "horizontal" ) {
                this.range.css( { "height": "", "bottom": "" } );
            }
        },

        _refreshValue: function() {
            var lastValPercent, valPercent, value, valueMin, valueMax,
                oRange = this.options.range,
                o = this.options,
                that = this,
                animate = ( !this._animateOff ) ? o.animate : false,
                _set = {};

            if ( this._hasMultipleValues() ) {
                this.handles.each( function( i ) {
                    valPercent = ( that.values( i ) - that._valueMin() ) / ( that._valueMax() -
                        that._valueMin() ) * 100;
                    _set[ that.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";
                    $( this ).stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );
                    if ( that.options.range === true ) {
                        if ( that.orientation === "horizontal" ) {
                            if ( i === 0 ) {
                                that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
                                    left: valPercent + "%"
                                }, o.animate );
                            }
                            if ( i === 1 ) {
                                that.range[ animate ? "animate" : "css" ]( {
                                    width: ( valPercent - lastValPercent ) + "%"
                                }, {
                                    queue: false,
                                    duration: o.animate
                                } );
                            }
                        } else {
                            if ( i === 0 ) {
                                that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
                                    bottom: ( valPercent ) + "%"
                                }, o.animate );
                            }
                            if ( i === 1 ) {
                                that.range[ animate ? "animate" : "css" ]( {
                                    height: ( valPercent - lastValPercent ) + "%"
                                }, {
                                    queue: false,
                                    duration: o.animate
                                } );
                            }
                        }
                    }
                    lastValPercent = valPercent;
                } );
            } else {
                value = this.value();
                valueMin = this._valueMin();
                valueMax = this._valueMax();
                valPercent = ( valueMax !== valueMin ) ?
                    ( value - valueMin ) / ( valueMax - valueMin ) * 100 :
                    0;
                _set[ this.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";
                this.handle.stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );

                if ( oRange === "min" && this.orientation === "horizontal" ) {
                    this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
                        width: valPercent + "%"
                    }, o.animate );
                }
                if ( oRange === "max" && this.orientation === "horizontal" ) {
                    this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
                        width: ( 100 - valPercent ) + "%"
                    }, o.animate );
                }
                if ( oRange === "min" && this.orientation === "vertical" ) {
                    this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
                        height: valPercent + "%"
                    }, o.animate );
                }
                if ( oRange === "max" && this.orientation === "vertical" ) {
                    this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
                        height: ( 100 - valPercent ) + "%"
                    }, o.animate );
                }
            }
        },

        _handleEvents: {
            keydown: function( event ) {
                var allowed, curVal, newVal, step,
                    index = $( event.target ).data( "ui-slider-handle-index" );

                switch ( event.keyCode ) {
                    case $.ui.keyCode.HOME:
                    case $.ui.keyCode.END:
                    case $.ui.keyCode.PAGE_UP:
                    case $.ui.keyCode.PAGE_DOWN:
                    case $.ui.keyCode.UP:
                    case $.ui.keyCode.RIGHT:
                    case $.ui.keyCode.DOWN:
                    case $.ui.keyCode.LEFT:
                        event.preventDefault();
                        if ( !this._keySliding ) {
                            this._keySliding = true;
                            this._addClass( $( event.target ), null, "ui-state-active" );
                            allowed = this._start( event, index );
                            if ( allowed === false ) {
                                return;
                            }
                        }
                        break;
                }

                step = this.options.step;
                if ( this._hasMultipleValues() ) {
                    curVal = newVal = this.values( index );
                } else {
                    curVal = newVal = this.value();
                }

                switch ( event.keyCode ) {
                    case $.ui.keyCode.HOME:
                        newVal = this._valueMin();
                        break;
                    case $.ui.keyCode.END:
                        newVal = this._valueMax();
                        break;
                    case $.ui.keyCode.PAGE_UP:
                        newVal = this._trimAlignValue(
                            curVal + ( ( this._valueMax() - this._valueMin() ) / this.numPages )
                        );
                        break;
                    case $.ui.keyCode.PAGE_DOWN:
                        newVal = this._trimAlignValue(
                            curVal - ( ( this._valueMax() - this._valueMin() ) / this.numPages ) );
                        break;
                    case $.ui.keyCode.UP:
                    case $.ui.keyCode.RIGHT:
                        if ( curVal === this._valueMax() ) {
                            return;
                        }
                        newVal = this._trimAlignValue( curVal + step );
                        break;
                    case $.ui.keyCode.DOWN:
                    case $.ui.keyCode.LEFT:
                        if ( curVal === this._valueMin() ) {
                            return;
                        }
                        newVal = this._trimAlignValue( curVal - step );
                        break;
                }

                this._slide( event, index, newVal );
            },
            keyup: function( event ) {
                var index = $( event.target ).data( "ui-slider-handle-index" );

                if ( this._keySliding ) {
                    this._keySliding = false;
                    this._stop( event, index );
                    this._change( event, index );
                    this._removeClass( $( event.target ), null, "ui-state-active" );
                }
            }
        }
    } );


    /*!
     * jQuery UI Spinner 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Spinner
//>>group: Widgets
//>>description: Displays buttons to easily input numbers via the keyboard or mouse.
//>>docs: http://api.jqueryui.com/spinner/
//>>demos: http://jqueryui.com/spinner/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/spinner.css
//>>css.theme: ../../themes/base/theme.css



    function spinnerModifer( fn ) {
        return function() {
            var previous = this.element.val();
            fn.apply( this, arguments );
            this._refresh();
            if ( previous !== this.element.val() ) {
                this._trigger( "change" );
            }
        };
    }

    $.widget( "ui.spinner", {
        version: "1.12.1",
        defaultElement: "<input>",
        widgetEventPrefix: "spin",
        options: {
            classes: {
                "ui-spinner": "ui-corner-all",
                "ui-spinner-down": "ui-corner-br",
                "ui-spinner-up": "ui-corner-tr"
            },
            culture: null,
            icons: {
                down: "ui-icon-triangle-1-s",
                up: "ui-icon-triangle-1-n"
            },
            incremental: true,
            max: null,
            min: null,
            numberFormat: null,
            page: 10,
            step: 1,

            change: null,
            spin: null,
            start: null,
            stop: null
        },

        _create: function() {

            // handle string values that need to be parsed
            this._setOption( "max", this.options.max );
            this._setOption( "min", this.options.min );
            this._setOption( "step", this.options.step );

            // Only format if there is a value, prevents the field from being marked
            // as invalid in Firefox, see #9573.
            if ( this.value() !== "" ) {

                // Format the value, but don't constrain.
                this._value( this.element.val(), true );
            }

            this._draw();
            this._on( this._events );
            this._refresh();

            // Turning off autocomplete prevents the browser from remembering the
            // value when navigating through history, so we re-enable autocomplete
            // if the page is unloaded before the widget is destroyed. #7790
            this._on( this.window, {
                beforeunload: function() {
                    this.element.removeAttr( "autocomplete" );
                }
            } );
        },

        _getCreateOptions: function() {
            var options = this._super();
            var element = this.element;

            $.each( [ "min", "max", "step" ], function( i, option ) {
                var value = element.attr( option );
                if ( value != null && value.length ) {
                    options[ option ] = value;
                }
            } );

            return options;
        },

        _events: {
            keydown: function( event ) {
                if ( this._start( event ) && this._keydown( event ) ) {
                    event.preventDefault();
                }
            },
            keyup: "_stop",
            focus: function() {
                this.previous = this.element.val();
            },
            blur: function( event ) {
                if ( this.cancelBlur ) {
                    delete this.cancelBlur;
                    return;
                }

                this._stop();
                this._refresh();
                if ( this.previous !== this.element.val() ) {
                    this._trigger( "change", event );
                }
            },
            mousewheel: function( event, delta ) {
                if ( !delta ) {
                    return;
                }
                if ( !this.spinning && !this._start( event ) ) {
                    return false;
                }

                this._spin( ( delta > 0 ? 1 : -1 ) * this.options.step, event );
                clearTimeout( this.mousewheelTimer );
                this.mousewheelTimer = this._delay( function() {
                    if ( this.spinning ) {
                        this._stop( event );
                    }
                }, 100 );
                event.preventDefault();
            },
            "mousedown .ui-spinner-button": function( event ) {
                var previous;

                // We never want the buttons to have focus; whenever the user is
                // interacting with the spinner, the focus should be on the input.
                // If the input is focused then this.previous is properly set from
                // when the input first received focus. If the input is not focused
                // then we need to set this.previous based on the value before spinning.
                previous = this.element[ 0 ] === $.ui.safeActiveElement( this.document[ 0 ] ) ?
                    this.previous : this.element.val();
                function checkFocus() {
                    var isActive = this.element[ 0 ] === $.ui.safeActiveElement( this.document[ 0 ] );
                    if ( !isActive ) {
                        this.element.trigger( "focus" );
                        this.previous = previous;

                        // support: IE
                        // IE sets focus asynchronously, so we need to check if focus
                        // moved off of the input because the user clicked on the button.
                        this._delay( function() {
                            this.previous = previous;
                        } );
                    }
                }

                // Ensure focus is on (or stays on) the text field
                event.preventDefault();
                checkFocus.call( this );

                // Support: IE
                // IE doesn't prevent moving focus even with event.preventDefault()
                // so we set a flag to know when we should ignore the blur event
                // and check (again) if focus moved off of the input.
                this.cancelBlur = true;
                this._delay( function() {
                    delete this.cancelBlur;
                    checkFocus.call( this );
                } );

                if ( this._start( event ) === false ) {
                    return;
                }

                this._repeat( null, $( event.currentTarget )
                    .hasClass( "ui-spinner-up" ) ? 1 : -1, event );
            },
            "mouseup .ui-spinner-button": "_stop",
            "mouseenter .ui-spinner-button": function( event ) {

                // button will add ui-state-active if mouse was down while mouseleave and kept down
                if ( !$( event.currentTarget ).hasClass( "ui-state-active" ) ) {
                    return;
                }

                if ( this._start( event ) === false ) {
                    return false;
                }
                this._repeat( null, $( event.currentTarget )
                    .hasClass( "ui-spinner-up" ) ? 1 : -1, event );
            },

            // TODO: do we really want to consider this a stop?
            // shouldn't we just stop the repeater and wait until mouseup before
            // we trigger the stop event?
            "mouseleave .ui-spinner-button": "_stop"
        },

        // Support mobile enhanced option and make backcompat more sane
        _enhance: function() {
            this.uiSpinner = this.element
                .attr( "autocomplete", "off" )
                .wrap( "<span>" )
                .parent()

                // Add buttons
                .append(
                    "<a></a><a></a>"
                );
        },

        _draw: function() {
            this._enhance();

            this._addClass( this.uiSpinner, "ui-spinner", "ui-widget ui-widget-content" );
            this._addClass( "ui-spinner-input" );

            this.element.attr( "role", "spinbutton" );

            // Button bindings
            this.buttons = this.uiSpinner.children( "a" )
                .attr( "tabIndex", -1 )
                .attr( "aria-hidden", true )
                .button( {
                    classes: {
                        "ui-button": ""
                    }
                } );

            // TODO: Right now button does not support classes this is already updated in button PR
            this._removeClass( this.buttons, "ui-corner-all" );

            this._addClass( this.buttons.first(), "ui-spinner-button ui-spinner-up" );
            this._addClass( this.buttons.last(), "ui-spinner-button ui-spinner-down" );
            this.buttons.first().button( {
                "icon": this.options.icons.up,
                "showLabel": false
            } );
            this.buttons.last().button( {
                "icon": this.options.icons.down,
                "showLabel": false
            } );

            // IE 6 doesn't understand height: 50% for the buttons
            // unless the wrapper has an explicit height
            if ( this.buttons.height() > Math.ceil( this.uiSpinner.height() * 0.5 ) &&
                this.uiSpinner.height() > 0 ) {
                this.uiSpinner.height( this.uiSpinner.height() );
            }
        },

        _keydown: function( event ) {
            var options = this.options,
                keyCode = $.ui.keyCode;

            switch ( event.keyCode ) {
                case keyCode.UP:
                    this._repeat( null, 1, event );
                    return true;
                case keyCode.DOWN:
                    this._repeat( null, -1, event );
                    return true;
                case keyCode.PAGE_UP:
                    this._repeat( null, options.page, event );
                    return true;
                case keyCode.PAGE_DOWN:
                    this._repeat( null, -options.page, event );
                    return true;
            }

            return false;
        },

        _start: function( event ) {
            if ( !this.spinning && this._trigger( "start", event ) === false ) {
                return false;
            }

            if ( !this.counter ) {
                this.counter = 1;
            }
            this.spinning = true;
            return true;
        },

        _repeat: function( i, steps, event ) {
            i = i || 500;

            clearTimeout( this.timer );
            this.timer = this._delay( function() {
                this._repeat( 40, steps, event );
            }, i );

            this._spin( steps * this.options.step, event );
        },

        _spin: function( step, event ) {
            var value = this.value() || 0;

            if ( !this.counter ) {
                this.counter = 1;
            }

            value = this._adjustValue( value + step * this._increment( this.counter ) );

            if ( !this.spinning || this._trigger( "spin", event, { value: value } ) !== false ) {
                this._value( value );
                this.counter++;
            }
        },

        _increment: function( i ) {
            var incremental = this.options.incremental;

            if ( incremental ) {
                return $.isFunction( incremental ) ?
                    incremental( i ) :
                    Math.floor( i * i * i / 50000 - i * i / 500 + 17 * i / 200 + 1 );
            }

            return 1;
        },

        _precision: function() {
            var precision = this._precisionOf( this.options.step );
            if ( this.options.min !== null ) {
                precision = Math.max( precision, this._precisionOf( this.options.min ) );
            }
            return precision;
        },

        _precisionOf: function( num ) {
            var str = num.toString(),
                decimal = str.indexOf( "." );
            return decimal === -1 ? 0 : str.length - decimal - 1;
        },

        _adjustValue: function( value ) {
            var base, aboveMin,
                options = this.options;

            // Make sure we're at a valid step
            // - find out where we are relative to the base (min or 0)
            base = options.min !== null ? options.min : 0;
            aboveMin = value - base;

            // - round to the nearest step
            aboveMin = Math.round( aboveMin / options.step ) * options.step;

            // - rounding is based on 0, so adjust back to our base
            value = base + aboveMin;

            // Fix precision from bad JS floating point math
            value = parseFloat( value.toFixed( this._precision() ) );

            // Clamp the value
            if ( options.max !== null && value > options.max ) {
                return options.max;
            }
            if ( options.min !== null && value < options.min ) {
                return options.min;
            }

            return value;
        },

        _stop: function( event ) {
            if ( !this.spinning ) {
                return;
            }

            clearTimeout( this.timer );
            clearTimeout( this.mousewheelTimer );
            this.counter = 0;
            this.spinning = false;
            this._trigger( "stop", event );
        },

        _setOption: function( key, value ) {
            var prevValue, first, last;

            if ( key === "culture" || key === "numberFormat" ) {
                prevValue = this._parse( this.element.val() );
                this.options[ key ] = value;
                this.element.val( this._format( prevValue ) );
                return;
            }

            if ( key === "max" || key === "min" || key === "step" ) {
                if ( typeof value === "string" ) {
                    value = this._parse( value );
                }
            }
            if ( key === "icons" ) {
                first = this.buttons.first().find( ".ui-icon" );
                this._removeClass( first, null, this.options.icons.up );
                this._addClass( first, null, value.up );
                last = this.buttons.last().find( ".ui-icon" );
                this._removeClass( last, null, this.options.icons.down );
                this._addClass( last, null, value.down );
            }

            this._super( key, value );
        },

        _setOptionDisabled: function( value ) {
            this._super( value );

            this._toggleClass( this.uiSpinner, null, "ui-state-disabled", !!value );
            this.element.prop( "disabled", !!value );
            this.buttons.button( value ? "disable" : "enable" );
        },

        _setOptions: spinnerModifer( function( options ) {
            this._super( options );
        } ),

        _parse: function( val ) {
            if ( typeof val === "string" && val !== "" ) {
                val = window.Globalize && this.options.numberFormat ?
                    Globalize.parseFloat( val, 10, this.options.culture ) : +val;
            }
            return val === "" || isNaN( val ) ? null : val;
        },

        _format: function( value ) {
            if ( value === "" ) {
                return "";
            }
            return window.Globalize && this.options.numberFormat ?
                Globalize.format( value, this.options.numberFormat, this.options.culture ) :
                value;
        },

        _refresh: function() {
            this.element.attr( {
                "aria-valuemin": this.options.min,
                "aria-valuemax": this.options.max,

                // TODO: what should we do with values that can't be parsed?
                "aria-valuenow": this._parse( this.element.val() )
            } );
        },

        isValid: function() {
            var value = this.value();

            // Null is invalid
            if ( value === null ) {
                return false;
            }

            // If value gets adjusted, it's invalid
            return value === this._adjustValue( value );
        },

        // Update the value without triggering change
        _value: function( value, allowAny ) {
            var parsed;
            if ( value !== "" ) {
                parsed = this._parse( value );
                if ( parsed !== null ) {
                    if ( !allowAny ) {
                        parsed = this._adjustValue( parsed );
                    }
                    value = this._format( parsed );
                }
            }
            this.element.val( value );
            this._refresh();
        },

        _destroy: function() {
            this.element
                .prop( "disabled", false )
                .removeAttr( "autocomplete role aria-valuemin aria-valuemax aria-valuenow" );

            this.uiSpinner.replaceWith( this.element );
        },

        stepUp: spinnerModifer( function( steps ) {
            this._stepUp( steps );
        } ),
        _stepUp: function( steps ) {
            if ( this._start() ) {
                this._spin( ( steps || 1 ) * this.options.step );
                this._stop();
            }
        },

        stepDown: spinnerModifer( function( steps ) {
            this._stepDown( steps );
        } ),
        _stepDown: function( steps ) {
            if ( this._start() ) {
                this._spin( ( steps || 1 ) * -this.options.step );
                this._stop();
            }
        },

        pageUp: spinnerModifer( function( pages ) {
            this._stepUp( ( pages || 1 ) * this.options.page );
        } ),

        pageDown: spinnerModifer( function( pages ) {
            this._stepDown( ( pages || 1 ) * this.options.page );
        } ),

        value: function( newVal ) {
            if ( !arguments.length ) {
                return this._parse( this.element.val() );
            }
            spinnerModifer( this._value ).call( this, newVal );
        },

        widget: function() {
            return this.uiSpinner;
        }
    } );

// DEPRECATED
// TODO: switch return back to widget declaration at top of file when this is removed
    if ( $.uiBackCompat !== false ) {

        // Backcompat for spinner html extension points
        $.widget( "ui.spinner", $.ui.spinner, {
            _enhance: function() {
                this.uiSpinner = this.element
                    .attr( "autocomplete", "off" )
                    .wrap( this._uiSpinnerHtml() )
                    .parent()

                    // Add buttons
                    .append( this._buttonHtml() );
            },
            _uiSpinnerHtml: function() {
                return "<span>";
            },

            _buttonHtml: function() {
                return "<a></a><a></a>";
            }
        } );
    }

    var widgetsSpinner = $.ui.spinner;


    /*!
     * jQuery UI Tabs 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Tabs
//>>group: Widgets
//>>description: Transforms a set of container elements into a tab structure.
//>>docs: http://api.jqueryui.com/tabs/
//>>demos: http://jqueryui.com/tabs/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/tabs.css
//>>css.theme: ../../themes/base/theme.css



    $.widget( "ui.tabs", {
        version: "1.12.1",
        delay: 300,
        options: {
            active: null,
            classes: {
                "ui-tabs": "ui-corner-all",
                "ui-tabs-nav": "ui-corner-all",
                "ui-tabs-panel": "ui-corner-bottom",
                "ui-tabs-tab": "ui-corner-top"
            },
            collapsible: false,
            event: "click",
            heightStyle: "content",
            hide: null,
            show: null,

            // Callbacks
            activate: null,
            beforeActivate: null,
            beforeLoad: null,
            load: null
        },

        _isLocal: ( function() {
            var rhash = /#.*$/;

            return function( anchor ) {
                var anchorUrl, locationUrl;

                anchorUrl = anchor.href.replace( rhash, "" );
                locationUrl = location.href.replace( rhash, "" );

                // Decoding may throw an error if the URL isn't UTF-8 (#9518)
                try {
                    anchorUrl = decodeURIComponent( anchorUrl );
                } catch ( error ) {}
                try {
                    locationUrl = decodeURIComponent( locationUrl );
                } catch ( error ) {}

                return anchor.hash.length > 1 && anchorUrl === locationUrl;
            };
        } )(),

        _create: function() {
            var that = this,
                options = this.options;

            this.running = false;

            this._addClass( "ui-tabs", "ui-widget ui-widget-content" );
            this._toggleClass( "ui-tabs-collapsible", null, options.collapsible );

            this._processTabs();
            options.active = this._initialActive();

            // Take disabling tabs via class attribute from HTML
            // into account and update option properly.
            if ( $.isArray( options.disabled ) ) {
                options.disabled = $.unique( options.disabled.concat(
                    $.map( this.tabs.filter( ".ui-state-disabled" ), function( li ) {
                        return that.tabs.index( li );
                    } )
                ) ).sort();
            }

            // Check for length avoids error when initializing empty list
            if ( this.options.active !== false && this.anchors.length ) {
                this.active = this._findActive( options.active );
            } else {
                this.active = $();
            }

            this._refresh();

            if ( this.active.length ) {
                this.load( options.active );
            }
        },

        _initialActive: function() {
            var active = this.options.active,
                collapsible = this.options.collapsible,
                locationHash = location.hash.substring( 1 );

            if ( active === null ) {

                // check the fragment identifier in the URL
                if ( locationHash ) {
                    this.tabs.each( function( i, tab ) {
                        if ( $( tab ).attr( "aria-controls" ) === locationHash ) {
                            active = i;
                            return false;
                        }
                    } );
                }

                // Check for a tab marked active via a class
                if ( active === null ) {
                    active = this.tabs.index( this.tabs.filter( ".ui-tabs-active" ) );
                }

                // No active tab, set to false
                if ( active === null || active === -1 ) {
                    active = this.tabs.length ? 0 : false;
                }
            }

            // Handle numbers: negative, out of range
            if ( active !== false ) {
                active = this.tabs.index( this.tabs.eq( active ) );
                if ( active === -1 ) {
                    active = collapsible ? false : 0;
                }
            }

            // Don't allow collapsible: false and active: false
            if ( !collapsible && active === false && this.anchors.length ) {
                active = 0;
            }

            return active;
        },

        _getCreateEventData: function() {
            return {
                tab: this.active,
                panel: !this.active.length ? $() : this._getPanelForTab( this.active )
            };
        },

        _tabKeydown: function( event ) {
            var focusedTab = $( $.ui.safeActiveElement( this.document[ 0 ] ) ).closest( "li" ),
                selectedIndex = this.tabs.index( focusedTab ),
                goingForward = true;

            if ( this._handlePageNav( event ) ) {
                return;
            }

            switch ( event.keyCode ) {
                case $.ui.keyCode.RIGHT:
                case $.ui.keyCode.DOWN:
                    selectedIndex++;
                    break;
                case $.ui.keyCode.UP:
                case $.ui.keyCode.LEFT:
                    goingForward = false;
                    selectedIndex--;
                    break;
                case $.ui.keyCode.END:
                    selectedIndex = this.anchors.length - 1;
                    break;
                case $.ui.keyCode.HOME:
                    selectedIndex = 0;
                    break;
                case $.ui.keyCode.SPACE:

                    // Activate only, no collapsing
                    event.preventDefault();
                    clearTimeout( this.activating );
                    this._activate( selectedIndex );
                    return;
                case $.ui.keyCode.ENTER:

                    // Toggle (cancel delayed activation, allow collapsing)
                    event.preventDefault();
                    clearTimeout( this.activating );

                    // Determine if we should collapse or activate
                    this._activate( selectedIndex === this.options.active ? false : selectedIndex );
                    return;
                default:
                    return;
            }

            // Focus the appropriate tab, based on which key was pressed
            event.preventDefault();
            clearTimeout( this.activating );
            selectedIndex = this._focusNextTab( selectedIndex, goingForward );

            // Navigating with control/command key will prevent automatic activation
            if ( !event.ctrlKey && !event.metaKey ) {

                // Update aria-selected immediately so that AT think the tab is already selected.
                // Otherwise AT may confuse the user by stating that they need to activate the tab,
                // but the tab will already be activated by the time the announcement finishes.
                focusedTab.attr( "aria-selected", "false" );
                this.tabs.eq( selectedIndex ).attr( "aria-selected", "true" );

                this.activating = this._delay( function() {
                    this.option( "active", selectedIndex );
                }, this.delay );
            }
        },

        _panelKeydown: function( event ) {
            if ( this._handlePageNav( event ) ) {
                return;
            }

            // Ctrl+up moves focus to the current tab
            if ( event.ctrlKey && event.keyCode === $.ui.keyCode.UP ) {
                event.preventDefault();
                this.active.trigger( "focus" );
            }
        },

        // Alt+page up/down moves focus to the previous/next tab (and activates)
        _handlePageNav: function( event ) {
            if ( event.altKey && event.keyCode === $.ui.keyCode.PAGE_UP ) {
                this._activate( this._focusNextTab( this.options.active - 1, false ) );
                return true;
            }
            if ( event.altKey && event.keyCode === $.ui.keyCode.PAGE_DOWN ) {
                this._activate( this._focusNextTab( this.options.active + 1, true ) );
                return true;
            }
        },

        _findNextTab: function( index, goingForward ) {
            var lastTabIndex = this.tabs.length - 1;

            function constrain() {
                if ( index > lastTabIndex ) {
                    index = 0;
                }
                if ( index < 0 ) {
                    index = lastTabIndex;
                }
                return index;
            }

            while ( $.inArray( constrain(), this.options.disabled ) !== -1 ) {
                index = goingForward ? index + 1 : index - 1;
            }

            return index;
        },

        _focusNextTab: function( index, goingForward ) {
            index = this._findNextTab( index, goingForward );
            this.tabs.eq( index ).trigger( "focus" );
            return index;
        },

        _setOption: function( key, value ) {
            if ( key === "active" ) {

                // _activate() will handle invalid values and update this.options
                this._activate( value );
                return;
            }

            this._super( key, value );

            if ( key === "collapsible" ) {
                this._toggleClass( "ui-tabs-collapsible", null, value );

                // Setting collapsible: false while collapsed; open first panel
                if ( !value && this.options.active === false ) {
                    this._activate( 0 );
                }
            }

            if ( key === "event" ) {
                this._setupEvents( value );
            }

            if ( key === "heightStyle" ) {
                this._setupHeightStyle( value );
            }
        },

        _sanitizeSelector: function( hash ) {
            return hash ? hash.replace( /[!"$%&'()*+,.\/:;<=>?@\[\]\^`{|}~]/g, "\\$&" ) : "";
        },

        refresh: function() {
            var options = this.options,
                lis = this.tablist.children( ":has(a[href])" );

            // Get disabled tabs from class attribute from HTML
            // this will get converted to a boolean if needed in _refresh()
            options.disabled = $.map( lis.filter( ".ui-state-disabled" ), function( tab ) {
                return lis.index( tab );
            } );

            this._processTabs();

            // Was collapsed or no tabs
            if ( options.active === false || !this.anchors.length ) {
                options.active = false;
                this.active = $();

                // was active, but active tab is gone
            } else if ( this.active.length && !$.contains( this.tablist[ 0 ], this.active[ 0 ] ) ) {

                // all remaining tabs are disabled
                if ( this.tabs.length === options.disabled.length ) {
                    options.active = false;
                    this.active = $();

                    // activate previous tab
                } else {
                    this._activate( this._findNextTab( Math.max( 0, options.active - 1 ), false ) );
                }

                // was active, active tab still exists
            } else {

                // make sure active index is correct
                options.active = this.tabs.index( this.active );
            }

            this._refresh();
        },

        _refresh: function() {
            this._setOptionDisabled( this.options.disabled );
            this._setupEvents( this.options.event );
            this._setupHeightStyle( this.options.heightStyle );

            this.tabs.not( this.active ).attr( {
                "aria-selected": "false",
                "aria-expanded": "false",
                tabIndex: -1
            } );
            this.panels.not( this._getPanelForTab( this.active ) )
                .hide()
                .attr( {
                    "aria-hidden": "true"
                } );

            // Make sure one tab is in the tab order
            if ( !this.active.length ) {
                this.tabs.eq( 0 ).attr( "tabIndex", 0 );
            } else {
                this.active
                    .attr( {
                        "aria-selected": "true",
                        "aria-expanded": "true",
                        tabIndex: 0
                    } );
                this._addClass( this.active, "ui-tabs-active", "ui-state-active" );
                this._getPanelForTab( this.active )
                    .show()
                    .attr( {
                        "aria-hidden": "false"
                    } );
            }
        },

        _processTabs: function() {
            var that = this,
                prevTabs = this.tabs,
                prevAnchors = this.anchors,
                prevPanels = this.panels;

            this.tablist = this._getList().attr( "role", "tablist" );
            this._addClass( this.tablist, "ui-tabs-nav",
                "ui-helper-reset ui-helper-clearfix ui-widget-header" );

            // Prevent users from focusing disabled tabs via click
            this.tablist
                .on( "mousedown" + this.eventNamespace, "> li", function( event ) {
                    if ( $( this ).is( ".ui-state-disabled" ) ) {
                        event.preventDefault();
                    }
                } )

                // Support: IE <9
                // Preventing the default action in mousedown doesn't prevent IE
                // from focusing the element, so if the anchor gets focused, blur.
                // We don't have to worry about focusing the previously focused
                // element since clicking on a non-focusable element should focus
                // the body anyway.
                .on( "focus" + this.eventNamespace, ".ui-tabs-anchor", function() {
                    if ( $( this ).closest( "li" ).is( ".ui-state-disabled" ) ) {
                        this.blur();
                    }
                } );

            this.tabs = this.tablist.find( "> li:has(a[href])" )
                .attr( {
                    role: "tab",
                    tabIndex: -1
                } );
            this._addClass( this.tabs, "ui-tabs-tab", "ui-state-default" );

            this.anchors = this.tabs.map( function() {
                return $( "a", this )[ 0 ];
            } )
                .attr( {
                    role: "presentation",
                    tabIndex: -1
                } );
            this._addClass( this.anchors, "ui-tabs-anchor" );

            this.panels = $();

            this.anchors.each( function( i, anchor ) {
                var selector, panel, panelId,
                    anchorId = $( anchor ).uniqueId().attr( "id" ),
                    tab = $( anchor ).closest( "li" ),
                    originalAriaControls = tab.attr( "aria-controls" );

                // Inline tab
                if ( that._isLocal( anchor ) ) {
                    selector = anchor.hash;
                    panelId = selector.substring( 1 );
                    panel = that.element.find( that._sanitizeSelector( selector ) );

                    // remote tab
                } else {

                    // If the tab doesn't already have aria-controls,
                    // generate an id by using a throw-away element
                    panelId = tab.attr( "aria-controls" ) || $( {} ).uniqueId()[ 0 ].id;
                    selector = "#" + panelId;
                    panel = that.element.find( selector );
                    if ( !panel.length ) {
                        panel = that._createPanel( panelId );
                        panel.insertAfter( that.panels[ i - 1 ] || that.tablist );
                    }
                    panel.attr( "aria-live", "polite" );
                }

                if ( panel.length ) {
                    that.panels = that.panels.add( panel );
                }
                if ( originalAriaControls ) {
                    tab.data( "ui-tabs-aria-controls", originalAriaControls );
                }
                tab.attr( {
                    "aria-controls": panelId,
                    "aria-labelledby": anchorId
                } );
                panel.attr( "aria-labelledby", anchorId );
            } );

            this.panels.attr( "role", "tabpanel" );
            this._addClass( this.panels, "ui-tabs-panel", "ui-widget-content" );

            // Avoid memory leaks (#10056)
            if ( prevTabs ) {
                this._off( prevTabs.not( this.tabs ) );
                this._off( prevAnchors.not( this.anchors ) );
                this._off( prevPanels.not( this.panels ) );
            }
        },

        // Allow overriding how to find the list for rare usage scenarios (#7715)
        _getList: function() {
            return this.tablist || this.element.find( "ol, ul" ).eq( 0 );
        },

        _createPanel: function( id ) {
            return $( "<div>" )
                .attr( "id", id )
                .data( "ui-tabs-destroy", true );
        },

        _setOptionDisabled: function( disabled ) {
            var currentItem, li, i;

            if ( $.isArray( disabled ) ) {
                if ( !disabled.length ) {
                    disabled = false;
                } else if ( disabled.length === this.anchors.length ) {
                    disabled = true;
                }
            }

            // Disable tabs
            for ( i = 0; ( li = this.tabs[ i ] ); i++ ) {
                currentItem = $( li );
                if ( disabled === true || $.inArray( i, disabled ) !== -1 ) {
                    currentItem.attr( "aria-disabled", "true" );
                    this._addClass( currentItem, null, "ui-state-disabled" );
                } else {
                    currentItem.removeAttr( "aria-disabled" );
                    this._removeClass( currentItem, null, "ui-state-disabled" );
                }
            }

            this.options.disabled = disabled;

            this._toggleClass( this.widget(), this.widgetFullName + "-disabled", null,
                disabled === true );
        },

        _setupEvents: function( event ) {
            var events = {};
            if ( event ) {
                $.each( event.split( " " ), function( index, eventName ) {
                    events[ eventName ] = "_eventHandler";
                } );
            }

            this._off( this.anchors.add( this.tabs ).add( this.panels ) );

            // Always prevent the default action, even when disabled
            this._on( true, this.anchors, {
                click: function( event ) {
                    event.preventDefault();
                }
            } );
            this._on( this.anchors, events );
            this._on( this.tabs, { keydown: "_tabKeydown" } );
            this._on( this.panels, { keydown: "_panelKeydown" } );

            this._focusable( this.tabs );
            this._hoverable( this.tabs );
        },

        _setupHeightStyle: function( heightStyle ) {
            var maxHeight,
                parent = this.element.parent();

            if ( heightStyle === "fill" ) {
                maxHeight = parent.height();
                maxHeight -= this.element.outerHeight() - this.element.height();

                this.element.siblings( ":visible" ).each( function() {
                    var elem = $( this ),
                        position = elem.css( "position" );

                    if ( position === "absolute" || position === "fixed" ) {
                        return;
                    }
                    maxHeight -= elem.outerHeight( true );
                } );

                this.element.children().not( this.panels ).each( function() {
                    maxHeight -= $( this ).outerHeight( true );
                } );

                this.panels.each( function() {
                    $( this ).height( Math.max( 0, maxHeight -
                        $( this ).innerHeight() + $( this ).height() ) );
                } )
                    .css( "overflow", "auto" );
            } else if ( heightStyle === "auto" ) {
                maxHeight = 0;
                this.panels.each( function() {
                    maxHeight = Math.max( maxHeight, $( this ).height( "" ).height() );
                } ).height( maxHeight );
            }
        },

        _eventHandler: function( event ) {
            var options = this.options,
                active = this.active,
                anchor = $( event.currentTarget ),
                tab = anchor.closest( "li" ),
                clickedIsActive = tab[ 0 ] === active[ 0 ],
                collapsing = clickedIsActive && options.collapsible,
                toShow = collapsing ? $() : this._getPanelForTab( tab ),
                toHide = !active.length ? $() : this._getPanelForTab( active ),
                eventData = {
                    oldTab: active,
                    oldPanel: toHide,
                    newTab: collapsing ? $() : tab,
                    newPanel: toShow
                };

            event.preventDefault();

            if ( tab.hasClass( "ui-state-disabled" ) ||

                // tab is already loading
                tab.hasClass( "ui-tabs-loading" ) ||

                // can't switch durning an animation
                this.running ||

                // click on active header, but not collapsible
                ( clickedIsActive && !options.collapsible ) ||

                // allow canceling activation
                ( this._trigger( "beforeActivate", event, eventData ) === false ) ) {
                return;
            }

            options.active = collapsing ? false : this.tabs.index( tab );

            this.active = clickedIsActive ? $() : tab;
            if ( this.xhr ) {
                this.xhr.abort();
            }

            if ( !toHide.length && !toShow.length ) {
                $.error( "jQuery UI Tabs: Mismatching fragment identifier." );
            }

            if ( toShow.length ) {
                this.load( this.tabs.index( tab ), event );
            }
            this._toggle( event, eventData );
        },

        // Handles show/hide for selecting tabs
        _toggle: function( event, eventData ) {
            var that = this,
                toShow = eventData.newPanel,
                toHide = eventData.oldPanel;

            this.running = true;

            function complete() {
                that.running = false;
                that._trigger( "activate", event, eventData );
            }

            function show() {
                that._addClass( eventData.newTab.closest( "li" ), "ui-tabs-active", "ui-state-active" );

                if ( toShow.length && that.options.show ) {
                    that._show( toShow, that.options.show, complete );
                } else {
                    toShow.show();
                    complete();
                }
            }

            // Start out by hiding, then showing, then completing
            if ( toHide.length && this.options.hide ) {
                this._hide( toHide, this.options.hide, function() {
                    that._removeClass( eventData.oldTab.closest( "li" ),
                        "ui-tabs-active", "ui-state-active" );
                    show();
                } );
            } else {
                this._removeClass( eventData.oldTab.closest( "li" ),
                    "ui-tabs-active", "ui-state-active" );
                toHide.hide();
                show();
            }

            toHide.attr( "aria-hidden", "true" );
            eventData.oldTab.attr( {
                "aria-selected": "false",
                "aria-expanded": "false"
            } );

            // If we're switching tabs, remove the old tab from the tab order.
            // If we're opening from collapsed state, remove the previous tab from the tab order.
            // If we're collapsing, then keep the collapsing tab in the tab order.
            if ( toShow.length && toHide.length ) {
                eventData.oldTab.attr( "tabIndex", -1 );
            } else if ( toShow.length ) {
                this.tabs.filter( function() {
                    return $( this ).attr( "tabIndex" ) === 0;
                } )
                    .attr( "tabIndex", -1 );
            }

            toShow.attr( "aria-hidden", "false" );
            eventData.newTab.attr( {
                "aria-selected": "true",
                "aria-expanded": "true",
                tabIndex: 0
            } );
        },

        _activate: function( index ) {
            var anchor,
                active = this._findActive( index );

            // Trying to activate the already active panel
            if ( active[ 0 ] === this.active[ 0 ] ) {
                return;
            }

            // Trying to collapse, simulate a click on the current active header
            if ( !active.length ) {
                active = this.active;
            }

            anchor = active.find( ".ui-tabs-anchor" )[ 0 ];
            this._eventHandler( {
                target: anchor,
                currentTarget: anchor,
                preventDefault: $.noop
            } );
        },

        _findActive: function( index ) {
            return index === false ? $() : this.tabs.eq( index );
        },

        _getIndex: function( index ) {

            // meta-function to give users option to provide a href string instead of a numerical index.
            if ( typeof index === "string" ) {
                index = this.anchors.index( this.anchors.filter( "[href$='" +
                    $.ui.escapeSelector( index ) + "']" ) );
            }

            return index;
        },

        _destroy: function() {
            if ( this.xhr ) {
                this.xhr.abort();
            }

            this.tablist
                .removeAttr( "role" )
                .off( this.eventNamespace );

            this.anchors
                .removeAttr( "role tabIndex" )
                .removeUniqueId();

            this.tabs.add( this.panels ).each( function() {
                if ( $.data( this, "ui-tabs-destroy" ) ) {
                    $( this ).remove();
                } else {
                    $( this ).removeAttr( "role tabIndex " +
                        "aria-live aria-busy aria-selected aria-labelledby aria-hidden aria-expanded" );
                }
            } );

            this.tabs.each( function() {
                var li = $( this ),
                    prev = li.data( "ui-tabs-aria-controls" );
                if ( prev ) {
                    li
                        .attr( "aria-controls", prev )
                        .removeData( "ui-tabs-aria-controls" );
                } else {
                    li.removeAttr( "aria-controls" );
                }
            } );

            this.panels.show();

            if ( this.options.heightStyle !== "content" ) {
                this.panels.css( "height", "" );
            }
        },

        enable: function( index ) {
            var disabled = this.options.disabled;
            if ( disabled === false ) {
                return;
            }

            if ( index === undefined ) {
                disabled = false;
            } else {
                index = this._getIndex( index );
                if ( $.isArray( disabled ) ) {
                    disabled = $.map( disabled, function( num ) {
                        return num !== index ? num : null;
                    } );
                } else {
                    disabled = $.map( this.tabs, function( li, num ) {
                        return num !== index ? num : null;
                    } );
                }
            }
            this._setOptionDisabled( disabled );
        },

        disable: function( index ) {
            var disabled = this.options.disabled;
            if ( disabled === true ) {
                return;
            }

            if ( index === undefined ) {
                disabled = true;
            } else {
                index = this._getIndex( index );
                if ( $.inArray( index, disabled ) !== -1 ) {
                    return;
                }
                if ( $.isArray( disabled ) ) {
                    disabled = $.merge( [ index ], disabled ).sort();
                } else {
                    disabled = [ index ];
                }
            }
            this._setOptionDisabled( disabled );
        },

        load: function( index, event ) {
            index = this._getIndex( index );
            var that = this,
                tab = this.tabs.eq( index ),
                anchor = tab.find( ".ui-tabs-anchor" ),
                panel = this._getPanelForTab( tab ),
                eventData = {
                    tab: tab,
                    panel: panel
                },
                complete = function( jqXHR, status ) {
                    if ( status === "abort" ) {
                        that.panels.stop( false, true );
                    }

                    that._removeClass( tab, "ui-tabs-loading" );
                    panel.removeAttr( "aria-busy" );

                    if ( jqXHR === that.xhr ) {
                        delete that.xhr;
                    }
                };

            // Not remote
            if ( this._isLocal( anchor[ 0 ] ) ) {
                return;
            }

            this.xhr = $.ajax( this._ajaxSettings( anchor, event, eventData ) );

            // Support: jQuery <1.8
            // jQuery <1.8 returns false if the request is canceled in beforeSend,
            // but as of 1.8, $.ajax() always returns a jqXHR object.
            if ( this.xhr && this.xhr.statusText !== "canceled" ) {
                this._addClass( tab, "ui-tabs-loading" );
                panel.attr( "aria-busy", "true" );

                this.xhr
                    .done( function( response, status, jqXHR ) {

                        // support: jQuery <1.8
                        // http://bugs.jquery.com/ticket/11778
                        setTimeout( function() {
                            panel.html( response );
                            that._trigger( "load", event, eventData );

                            complete( jqXHR, status );
                        }, 1 );
                    } )
                    .fail( function( jqXHR, status ) {

                        // support: jQuery <1.8
                        // http://bugs.jquery.com/ticket/11778
                        setTimeout( function() {
                            complete( jqXHR, status );
                        }, 1 );
                    } );
            }
        },

        _ajaxSettings: function( anchor, event, eventData ) {
            var that = this;
            return {

                // Support: IE <11 only
                // Strip any hash that exists to prevent errors with the Ajax request
                url: anchor.attr( "href" ).replace( /#.*$/, "" ),
                beforeSend: function( jqXHR, settings ) {
                    return that._trigger( "beforeLoad", event,
                        $.extend( { jqXHR: jqXHR, ajaxSettings: settings }, eventData ) );
                }
            };
        },

        _getPanelForTab: function( tab ) {
            var id = $( tab ).attr( "aria-controls" );
            return this.element.find( this._sanitizeSelector( "#" + id ) );
        }
    } );

// DEPRECATED
// TODO: Switch return back to widget declaration at top of file when this is removed
    if ( $.uiBackCompat !== false ) {

        // Backcompat for ui-tab class (now ui-tabs-tab)
        $.widget( "ui.tabs", $.ui.tabs, {
            _processTabs: function() {
                this._superApply( arguments );
                this._addClass( this.tabs, "ui-tab" );
            }
        } );
    }

    var widgetsTabs = $.ui.tabs;


    /*!
     * jQuery UI Tooltip 1.12.1
     * http://jqueryui.com
     *
     * Copyright jQuery Foundation and other contributors
     * Released under the MIT license.
     * http://jquery.org/license
     */

//>>label: Tooltip
//>>group: Widgets
//>>description: Shows additional information for any element on hover or focus.
//>>docs: http://api.jqueryui.com/tooltip/
//>>demos: http://jqueryui.com/tooltip/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/tooltip.css
//>>css.theme: ../../themes/base/theme.css



    $.widget( "ui.tooltip", {
        version: "1.12.1",
        options: {
            classes: {
                "ui-tooltip": "ui-corner-all ui-widget-shadow"
            },
            content: function() {

                // support: IE<9, Opera in jQuery <1.7
                // .text() can't accept undefined, so coerce to a string
                var title = $( this ).attr( "title" ) || "";

                // Escape title, since we're going from an attribute to raw HTML
                return $( "<a>" ).text( title ).html();
            },
            hide: true,

            // Disabled elements have inconsistent behavior across browsers (#8661)
            items: "[title]:not([disabled])",
            position: {
                my: "left top+15",
                at: "left bottom",
                collision: "flipfit flip"
            },
            show: true,
            track: false,

            // Callbacks
            close: null,
            open: null
        },

        _addDescribedBy: function( elem, id ) {
            var describedby = ( elem.attr( "aria-describedby" ) || "" ).split( /\s+/ );
            describedby.push( id );
            elem
                .data( "ui-tooltip-id", id )
                .attr( "aria-describedby", $.trim( describedby.join( " " ) ) );
        },

        _removeDescribedBy: function( elem ) {
            var id = elem.data( "ui-tooltip-id" ),
                describedby = ( elem.attr( "aria-describedby" ) || "" ).split( /\s+/ ),
                index = $.inArray( id, describedby );

            if ( index !== -1 ) {
                describedby.splice( index, 1 );
            }

            elem.removeData( "ui-tooltip-id" );
            describedby = $.trim( describedby.join( " " ) );
            if ( describedby ) {
                elem.attr( "aria-describedby", describedby );
            } else {
                elem.removeAttr( "aria-describedby" );
            }
        },

        _create: function() {
            this._on( {
                mouseover: "open",
                focusin: "open"
            } );

            // IDs of generated tooltips, needed for destroy
            this.tooltips = {};

            // IDs of parent tooltips where we removed the title attribute
            this.parents = {};

            // Append the aria-live region so tooltips announce correctly
            this.liveRegion = $( "<div>" )
                .attr( {
                    role: "log",
                    "aria-live": "assertive",
                    "aria-relevant": "additions"
                } )
                .appendTo( this.document[ 0 ].body );
            this._addClass( this.liveRegion, null, "ui-helper-hidden-accessible" );

            this.disabledTitles = $( [] );
        },

        _setOption: function( key, value ) {
            var that = this;

            this._super( key, value );

            if ( key === "content" ) {
                $.each( this.tooltips, function( id, tooltipData ) {
                    that._updateContent( tooltipData.element );
                } );
            }
        },

        _setOptionDisabled: function( value ) {
            this[ value ? "_disable" : "_enable" ]();
        },

        _disable: function() {
            var that = this;

            // Close open tooltips
            $.each( this.tooltips, function( id, tooltipData ) {
                var event = $.Event( "blur" );
                event.target = event.currentTarget = tooltipData.element[ 0 ];
                that.close( event, true );
            } );

            // Remove title attributes to prevent native tooltips
            this.disabledTitles = this.disabledTitles.add(
                this.element.find( this.options.items ).addBack()
                    .filter( function() {
                        var element = $( this );
                        if ( element.is( "[title]" ) ) {
                            return element
                                .data( "ui-tooltip-title", element.attr( "title" ) )
                                .removeAttr( "title" );
                        }
                    } )
            );
        },

        _enable: function() {

            // restore title attributes
            this.disabledTitles.each( function() {
                var element = $( this );
                if ( element.data( "ui-tooltip-title" ) ) {
                    element.attr( "title", element.data( "ui-tooltip-title" ) );
                }
            } );
            this.disabledTitles = $( [] );
        },

        open: function( event ) {
            var that = this,
                target = $( event ? event.target : this.element )

                // we need closest here due to mouseover bubbling,
                // but always pointing at the same event target
                    .closest( this.options.items );

            // No element to show a tooltip for or the tooltip is already open
            if ( !target.length || target.data( "ui-tooltip-id" ) ) {
                return;
            }

            if ( target.attr( "title" ) ) {
                target.data( "ui-tooltip-title", target.attr( "title" ) );
            }

            target.data( "ui-tooltip-open", true );

            // Kill parent tooltips, custom or native, for hover
            if ( event && event.type === "mouseover" ) {
                target.parents().each( function() {
                    var parent = $( this ),
                        blurEvent;
                    if ( parent.data( "ui-tooltip-open" ) ) {
                        blurEvent = $.Event( "blur" );
                        blurEvent.target = blurEvent.currentTarget = this;
                        that.close( blurEvent, true );
                    }
                    if ( parent.attr( "title" ) ) {
                        parent.uniqueId();
                        that.parents[ this.id ] = {
                            element: this,
                            title: parent.attr( "title" )
                        };
                        parent.attr( "title", "" );
                    }
                } );
            }

            this._registerCloseHandlers( event, target );
            this._updateContent( target, event );
        },

        _updateContent: function( target, event ) {
            var content,
                contentOption = this.options.content,
                that = this,
                eventType = event ? event.type : null;

            if ( typeof contentOption === "string" || contentOption.nodeType ||
                contentOption.jquery ) {
                return this._open( event, target, contentOption );
            }

            content = contentOption.call( target[ 0 ], function( response ) {

                // IE may instantly serve a cached response for ajax requests
                // delay this call to _open so the other call to _open runs first
                that._delay( function() {

                    // Ignore async response if tooltip was closed already
                    if ( !target.data( "ui-tooltip-open" ) ) {
                        return;
                    }

                    // JQuery creates a special event for focusin when it doesn't
                    // exist natively. To improve performance, the native event
                    // object is reused and the type is changed. Therefore, we can't
                    // rely on the type being correct after the event finished
                    // bubbling, so we set it back to the previous value. (#8740)
                    if ( event ) {
                        event.type = eventType;
                    }
                    this._open( event, target, response );
                } );
            } );
            if ( content ) {
                this._open( event, target, content );
            }
        },

        _open: function( event, target, content ) {
            var tooltipData, tooltip, delayedShow, a11yContent,
                positionOption = $.extend( {}, this.options.position );

            if ( !content ) {
                return;
            }

            // Content can be updated multiple times. If the tooltip already
            // exists, then just update the content and bail.
            tooltipData = this._find( target );
            if ( tooltipData ) {
                tooltipData.tooltip.find( ".ui-tooltip-content" ).html( content );
                return;
            }

            // If we have a title, clear it to prevent the native tooltip
            // we have to check first to avoid defining a title if none exists
            // (we don't want to cause an element to start matching [title])
            //
            // We use removeAttr only for key events, to allow IE to export the correct
            // accessible attributes. For mouse events, set to empty string to avoid
            // native tooltip showing up (happens only when removing inside mouseover).
            if ( target.is( "[title]" ) ) {
                if ( event && event.type === "mouseover" ) {
                    target.attr( "title", "" );
                } else {
                    target.removeAttr( "title" );
                }
            }

            tooltipData = this._tooltip( target );
            tooltip = tooltipData.tooltip;
            this._addDescribedBy( target, tooltip.attr( "id" ) );
            tooltip.find( ".ui-tooltip-content" ).html( content );

            // Support: Voiceover on OS X, JAWS on IE <= 9
            // JAWS announces deletions even when aria-relevant="additions"
            // Voiceover will sometimes re-read the entire log region's contents from the beginning
            this.liveRegion.children().hide();
            a11yContent = $( "<div>" ).html( tooltip.find( ".ui-tooltip-content" ).html() );
            a11yContent.removeAttr( "name" ).find( "[name]" ).removeAttr( "name" );
            a11yContent.removeAttr( "id" ).find( "[id]" ).removeAttr( "id" );
            a11yContent.appendTo( this.liveRegion );

            function position( event ) {
                positionOption.of = event;
                if ( tooltip.is( ":hidden" ) ) {
                    return;
                }
                tooltip.position( positionOption );
            }
            if ( this.options.track && event && /^mouse/.test( event.type ) ) {
                this._on( this.document, {
                    mousemove: position
                } );

                // trigger once to override element-relative positioning
                position( event );
            } else {
                tooltip.position( $.extend( {
                    of: target
                }, this.options.position ) );
            }

            tooltip.hide();

            this._show( tooltip, this.options.show );

            // Handle tracking tooltips that are shown with a delay (#8644). As soon
            // as the tooltip is visible, position the tooltip using the most recent
            // event.
            // Adds the check to add the timers only when both delay and track options are set (#14682)
            if ( this.options.track && this.options.show && this.options.show.delay ) {
                delayedShow = this.delayedShow = setInterval( function() {
                    if ( tooltip.is( ":visible" ) ) {
                        position( positionOption.of );
                        clearInterval( delayedShow );
                    }
                }, $.fx.interval );
            }

            this._trigger( "open", event, { tooltip: tooltip } );
        },

        _registerCloseHandlers: function( event, target ) {
            var events = {
                keyup: function( event ) {
                    if ( event.keyCode === $.ui.keyCode.ESCAPE ) {
                        var fakeEvent = $.Event( event );
                        fakeEvent.currentTarget = target[ 0 ];
                        this.close( fakeEvent, true );
                    }
                }
            };

            // Only bind remove handler for delegated targets. Non-delegated
            // tooltips will handle this in destroy.
            if ( target[ 0 ] !== this.element[ 0 ] ) {
                events.remove = function() {
                    this._removeTooltip( this._find( target ).tooltip );
                };
            }

            if ( !event || event.type === "mouseover" ) {
                events.mouseleave = "close";
            }
            if ( !event || event.type === "focusin" ) {
                events.focusout = "close";
            }
            this._on( true, target, events );
        },

        close: function( event ) {
            var tooltip,
                that = this,
                target = $( event ? event.currentTarget : this.element ),
                tooltipData = this._find( target );

            // The tooltip may already be closed
            if ( !tooltipData ) {

                // We set ui-tooltip-open immediately upon open (in open()), but only set the
                // additional data once there's actually content to show (in _open()). So even if the
                // tooltip doesn't have full data, we always remove ui-tooltip-open in case we're in
                // the period between open() and _open().
                target.removeData( "ui-tooltip-open" );
                return;
            }

            tooltip = tooltipData.tooltip;

            // Disabling closes the tooltip, so we need to track when we're closing
            // to avoid an infinite loop in case the tooltip becomes disabled on close
            if ( tooltipData.closing ) {
                return;
            }

            // Clear the interval for delayed tracking tooltips
            clearInterval( this.delayedShow );

            // Only set title if we had one before (see comment in _open())
            // If the title attribute has changed since open(), don't restore
            if ( target.data( "ui-tooltip-title" ) && !target.attr( "title" ) ) {
                target.attr( "title", target.data( "ui-tooltip-title" ) );
            }

            this._removeDescribedBy( target );

            tooltipData.hiding = true;
            tooltip.stop( true );
            this._hide( tooltip, this.options.hide, function() {
                that._removeTooltip( $( this ) );
            } );

            target.removeData( "ui-tooltip-open" );
            this._off( target, "mouseleave focusout keyup" );

            // Remove 'remove' binding only on delegated targets
            if ( target[ 0 ] !== this.element[ 0 ] ) {
                this._off( target, "remove" );
            }
            this._off( this.document, "mousemove" );

            if ( event && event.type === "mouseleave" ) {
                $.each( this.parents, function( id, parent ) {
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// DEPRECATED
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 *
 * Copyright 2011–2014, Dave Furfero
 * Dual licensed under the MIT or GPL Version 2 licenses.
 *
 * Depends:
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 *  jquery.ui.mouse.js
 */
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 * https://greensock.com
 * 
 * @license Copyright 2020, GreenSock. All rights reserved.
 * Subject to the terms at https://greensock.com/standard-license or for Club GreenSock members, the agreement issued with that membership.
 * @author: Jack Doyle, jack@greensock.com
 */

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a=this;a.params.cssMode||a.$wrapperEl.transition(e),a.emit("setTransition",e,t)},transitionStart:function(e,t){void 0===e&&(e=!0);var a=this,i=a.activeIndex,s=a.params,r=a.previousIndex;if(!s.cssMode){s.autoHeight&&a.updateAutoHeight();var n=t;if(n||(n=i>r?"next":i<r?"prev":"reset"),a.emit("transitionStart"),e&&i!==r){if("reset"===n)return void a.emit("slideResetTransitionStart");a.emit("slideChangeTransitionStart"),"next"===n?a.emit("slideNextTransitionStart"):a.emit("slidePrevTransitionStart")}}},transitionEnd:function(e,t){void 0===e&&(e=!0);var a=this,i=a.activeIndex,s=a.previousIndex,r=a.params;if(a.animating=!1,!r.cssMode){a.setTransition(0);var n=t;if(n||(n=i>s?"next":i<s?"prev":"reset"),a.emit("transitionEnd"),e&&i!==s){if("reset"===n)return void a.emit("slideResetTransitionEnd");a.emit("slideChangeTransitionEnd"),"next"===n?a.emit("slideNextTransitionEnd"):a.emit("slidePrevTransitionEnd")}}}},slide:{slideTo:function(e,t,a,i){if(void 0===e&&(e=0),void 0===t&&(t=this.params.speed),void 0===a&&(a=!0),"number"!=typeof e&&"string"!=typeof e)throw new Error("The 'index' argument cannot have type other than 'number' or 'string'. 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r.updateActiveIndex(n),l.autoHeight&&r.updateAutoHeight(),r.updateSlidesClasses(),"slide"!==l.effect&&r.setTranslate(g),"reset"!==m&&(r.transitionStart(a,m),r.transitionEnd(a,m)),!1;if(l.cssMode){var x,T=r.isHorizontal(),C=-g;if(c&&(C=h.scrollWidth-h.offsetWidth-C),0===t)h[T?"scrollLeft":"scrollTop"]=C;else if(h.scrollTo)h.scrollTo(((x={})[T?"left":"top"]=C,x.behavior="smooth",x));else h[T?"scrollLeft":"scrollTop"]=C;return!0}return 0===t?(r.setTransition(0),r.setTranslate(g),r.updateActiveIndex(n),r.updateSlidesClasses(),r.emit("beforeTransitionStart",t,i),r.transitionStart(a,m),r.transitionEnd(a,m)):(r.setTransition(t),r.setTranslate(g),r.updateActiveIndex(n),r.updateSlidesClasses(),r.emit("beforeTransitionStart",t,i),r.transitionStart(a,m),r.animating||(r.animating=!0,r.onSlideToWrapperTransitionEnd||(r.onSlideToWrapperTransitionEnd=function(e){r&&!r.destroyed&&e.target===this&&(r.$wrapperEl[0].removeEventListener("transitionend",r.onSlideToWrapperTransitionEnd),r.$wrapperEl[0].removeEventListener("webkitTransitionEnd",r.onSlideToWrapperTransitionEnd),r.onSlideToWrapperTransitionEnd=null,delete r.onSlideToWrapperTransitionEnd,r.transitionEnd(a,m))}),r.$wrapperEl[0].addEventListener("transitionend",r.onSlideToWrapperTransitionEnd),r.$wrapperEl[0].addEventListener("webkitTransitionEnd",r.onSlideToWrapperTransitionEnd))),!0},slideToLoop:function(e,t,a,i){void 0===e&&(e=0),void 0===t&&(t=this.params.speed),void 0===a&&(a=!0);var s=this,r=e;return s.params.loop&&(r+=s.loopedSlides),s.slideTo(r,t,a,i)},slideNext:function(e,t,a){void 0===e&&(e=this.params.speed),void 0===t&&(t=!0);var i=this,s=i.params,r=i.animating,n=i.activeIndex<s.slidesPerGroupSkip?1:s.slidesPerGroup;if(s.loop){if(r&&s.loopPreventsSlide)return!1;i.loopFix(),i._clientLeft=i.$wrapperEl[0].clientLeft}return i.slideTo(i.activeIndex+n,e,t,a)},slidePrev:function(e,t,a){void 0===e&&(e=this.params.speed),void 0===t&&(t=!0);var i=this,s=i.params,r=i.animating,n=i.snapGrid,l=i.slidesGrid,o=i.rtlTranslate;if(s.loop){if(r&&s.loopPreventsSlide)return!1;i.loopFix(),i._clientLeft=i.$wrapperEl[0].clientLeft}function d(e){return e<0?-Math.floor(Math.abs(e)):Math.floor(e)}var p=d(o?i.translate:-i.translate),u=n.map((function(e){return d(e)}));n[u.indexOf(p)];var c,h=n[u.indexOf(p)-1];return void 0===h&&s.cssMode&&n.forEach((function(e){!h&&p>=e&&(h=e)})),void 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e,t=this,a=t.params,i=t.$wrapperEl,s="auto"===a.slidesPerView?t.slidesPerViewDynamic():a.slidesPerView,r=t.clickedIndex;if(a.loop){if(t.animating)return;e=parseInt(m(t.clickedSlide).attr("data-swiper-slide-index"),10),a.centeredSlides?r<t.loopedSlides-s/2||r>t.slides.length-t.loopedSlides+s/2?(t.loopFix(),r=i.children("."+a.slideClass+'[data-swiper-slide-index="'+e+'"]:not(.'+a.slideDuplicateClass+")").eq(0).index(),E((function(){t.slideTo(r)}))):t.slideTo(r):r>t.slides.length-s?(t.loopFix(),r=i.children("."+a.slideClass+'[data-swiper-slide-index="'+e+'"]:not(.'+a.slideDuplicateClass+")").eq(0).index(),E((function(){t.slideTo(r)}))):t.slideTo(r)}else t.slideTo(r)}},loop:{loopCreate:function(){var e=this,t=r(),a=e.params,i=e.$wrapperEl;i.children("."+a.slideClass+"."+a.slideDuplicateClass).remove();var s=i.children("."+a.slideClass);if(a.loopFillGroupWithBlank){var n=a.slidesPerGroup-s.length%a.slidesPerGroup;if(n!==a.slidesPerGroup){for(var l=0;l<n;l+=1){var o=m(t.createElement("div")).addClass(a.slideClass+" "+a.slideBlankClass);i.append(o)}s=i.children("."+a.slideClass)}}"auto"!==a.slidesPerView||a.loopedSlides||(a.loopedSlides=s.length),e.loopedSlides=Math.ceil(parseFloat(a.loopedSlides||a.slidesPerView,10)),e.loopedSlides+=a.loopAdditionalSlides,e.loopedSlides>s.length&&(e.loopedSlides=s.length);var d=[],p=[];s.each((function(t,a){var i=m(t);a<e.loopedSlides&&p.push(t),a<s.length&&a>=s.length-e.loopedSlides&&d.push(t),i.attr("data-swiper-slide-index",a)}));for(var u=0;u<p.length;u+=1)i.append(m(p[u].cloneNode(!0)).addClass(a.slideDuplicateClass));for(var c=d.length-1;c>=0;c-=1)i.prepend(m(d[c].cloneNode(!0)).addClass(a.slideDuplicateClass))},loopFix:function(){var e=this;e.emit("beforeLoopFix");var t,a=e.activeIndex,i=e.slides,s=e.loopedSlides,r=e.allowSlidePrev,n=e.allowSlideNext,l=e.snapGrid,o=e.rtlTranslate;e.allowSlidePrev=!0,e.allowSlideNext=!0;var d=-l[a]-e.getTranslate();if(a<s)t=i.length-3*s+a,t+=s,e.slideTo(t,0,!1,!0)&&0!==d&&e.setTranslate((o?-e.translate:e.translate)-d);else if(a>=i.length-s){t=-i.length+a+s,t+=s,e.slideTo(t,0,!1,!0)&&0!==d&&e.setTranslate((o?-e.translate:e.translate)-d)}e.allowSlidePrev=r,e.allowSlideNext=n,e.emit("loopFix")},loopDestroy:function(){var e=this,t=e.$wrapperEl,a=e.params,i=e.slides;t.children("."+a.slideClass+"."+a.slideDuplicateClass+",."+a.slideClass+"."+a.slideBlankClass).remove(),i.removeAttr("data-swiper-slide-index")}},grabCursor:{setGrabCursor:function(e){var t=this;if(!(t.support.touch||!t.params.simulateTouch||t.params.watchOverflow&&t.isLocked||t.params.cssMode)){var a=t.el;a.style.cursor="move",a.style.cursor=e?"-webkit-grabbing":"-webkit-grab",a.style.cursor=e?"-moz-grabbin":"-moz-grab",a.style.cursor=e?"grabbing":"grab"}},unsetGrabCursor:function(){var e=this;e.support.touch||e.params.watchOverflow&&e.isLocked||e.params.cssMode||(e.el.style.cursor="")}},manipulation:{appendSlide:function(e){var t=this,a=t.$wrapperEl,i=t.params;if(i.loop&&t.loopDestroy(),"object"==typeof e&&"length"in e)for(var s=0;s<e.length;s+=1)e[s]&&a.append(e[s]);else a.append(e);i.loop&&t.loopCreate(),i.observer&&t.support.observer||t.update()},prependSlide:function(e){var t=this,a=t.params,i=t.$wrapperEl,s=t.activeIndex;a.loop&&t.loopDestroy();var r=s+1;if("object"==typeof e&&"length"in e){for(var n=0;n<e.length;n+=1)e[n]&&i.prepend(e[n]);r=s+e.length}else i.prepend(e);a.loop&&t.loopCreate(),a.observer&&t.support.observer||t.update(),t.slideTo(r,0,!1)},addSlide:function(e,t){var a=this,i=a.$wrapperEl,s=a.params,r=a.activeIndex;s.loop&&(r-=a.loopedSlides,a.loopDestroy(),a.slides=i.children("."+s.slideClass));var n=a.slides.length;if(e<=0)a.prependSlide(t);else if(e>=n)a.appendSlide(t);else{for(var l=r>e?r+1:r,o=[],d=n-1;d>=e;d-=1){var p=a.slides.eq(d);p.remove(),o.unshift(p)}if("object"==typeof t&&"length"in t){for(var u=0;u<t.length;u+=1)t[u]&&i.append(t[u]);l=r>e?r+t.length:r}else i.append(t);for(var c=0;c<o.length;c+=1)i.append(o[c]);s.loop&&a.loopCreate(),s.observer&&a.support.observer||a.update(),s.loop?a.slideTo(l+a.loopedSlides,0,!1):a.slideTo(l,0,!1)}},removeSlide:function(e){var t=this,a=t.params,i=t.$wrapperEl,s=t.activeIndex;a.loop&&(s-=t.loopedSlides,t.loopDestroy(),t.slides=i.children("."+a.slideClass));var r,n=s;if("object"==typeof e&&"length"in e){for(var l=0;l<e.length;l+=1)r=e[l],t.slides[r]&&t.slides.eq(r).remove(),r<n&&(n-=1);n=Math.max(n,0)}else r=e,t.slides[r]&&t.slides.eq(r).remove(),r<n&&(n-=1),n=Math.max(n,0);a.loop&&t.loopCreate(),a.observer&&t.support.observer||t.update(),a.loop?t.slideTo(n+t.loopedSlides,0,!1):t.slideTo(n,0,!1)},removeAllSlides:function(){for(var e=[],t=0;t<this.slides.length;t+=1)e.push(t);this.removeSlide(e)}},events:{attachEvents:function(){var e=this,t=r(),a=e.params,i=e.touchEvents,s=e.el,n=e.wrapperEl,l=e.device,o=e.support;e.onTouchStart=O.bind(e),e.onTouchMove=A.bind(e),e.onTouchEnd=D.bind(e),a.cssMode&&(e.onScroll=B.bind(e)),e.onClick=N.bind(e);var d=!!a.nested;if(!o.touch&&o.pointerEvents)s.addEventListener(i.start,e.onTouchStart,!1),t.addEventListener(i.move,e.onTouchMove,d),t.addEventListener(i.end,e.onTouchEnd,!1);else{if(o.touch){var p=!("touchstart"!==i.start||!o.passiveListener||!a.passiveListeners)&&{passive:!0,capture:!1};s.addEventListener(i.start,e.onTouchStart,p),s.addEventListener(i.move,e.onTouchMove,o.passiveListener?{passive:!1,capture:d}:d),s.addEventListener(i.end,e.onTouchEnd,p),i.cancel&&s.addEventListener(i.cancel,e.onTouchEnd,p),H||(t.addEventListener("touchstart",X),H=!0)}(a.simulateTouch&&!l.ios&&!l.android||a.simulateTouch&&!o.touch&&l.ios)&&(s.addEventListener("mousedown",e.onTouchStart,!1),t.addEventListener("mousemove",e.onTouchMove,d),t.addEventListener("mouseup",e.onTouchEnd,!1))}(a.preventClicks||a.preventClicksPropagation)&&s.addEventListener("click",e.onClick,!0),a.cssMode&&n.addEventListener("scroll",e.onScroll),a.updateOnWindowResize?e.on(l.ios||l.android?"resize orientationchange observerUpdate":"resize observerUpdate",G,!0):e.on("observerUpdate",G,!0)},detachEvents:function(){var e=this,t=r(),a=e.params,i=e.touchEvents,s=e.el,n=e.wrapperEl,l=e.device,o=e.support,d=!!a.nested;if(!o.touch&&o.pointerEvents)s.removeEventListener(i.start,e.onTouchStart,!1),t.removeEventListener(i.move,e.onTouchMove,d),t.removeEventListener(i.end,e.onTouchEnd,!1);else{if(o.touch){var p=!("onTouchStart"!==i.start||!o.passiveListener||!a.passiveListeners)&&{passive:!0,capture:!1};s.removeEventListener(i.start,e.onTouchStart,p),s.removeEventListener(i.move,e.onTouchMove,d),s.removeEventListener(i.end,e.onTouchEnd,p),i.cancel&&s.removeEventListener(i.cancel,e.onTouchEnd,p)}(a.simulateTouch&&!l.ios&&!l.android||a.simulateTouch&&!o.touch&&l.ios)&&(s.removeEventListener("mousedown",e.onTouchStart,!1),t.removeEventListener("mousemove",e.onTouchMove,d),t.removeEventListener("mouseup",e.onTouchEnd,!1))}(a.preventClicks||a.preventClicksPropagation)&&s.removeEventListener("click",e.onClick,!0),a.cssMode&&n.removeEventListener("scroll",e.onScroll),e.off(l.ios||l.android?"resize orientationchange observerUpdate":"resize observerUpdate",G)}},breakpoints:{setBreakpoint:function(){var e=this,t=e.activeIndex,a=e.initialized,i=e.loopedSlides,s=void 0===i?0:i,r=e.params,n=e.$el,l=r.breakpoints;if(l&&(!l||0!==Object.keys(l).length)){var o=e.getBreakpoint(l);if(o&&e.currentBreakpoint!==o){var d=o in l?l[o]:void 0;d&&["slidesPerView","spaceBetween","slidesPerGroup","slidesPerGroupSkip","slidesPerColumn"].forEach((function(e){var t=d[e];void 0!==t&&(d[e]="slidesPerView"!==e||"AUTO"!==t&&"auto"!==t?"slidesPerView"===e?parseFloat(t):parseInt(t,10):"auto")}));var p=d||e.originalParams,u=r.slidesPerColumn>1,c=p.slidesPerColumn>1;u&&!c?(n.removeClass(r.containerModifierClass+"multirow "+r.containerModifierClass+"multirow-column"),e.emitContainerClasses()):!u&&c&&(n.addClass(r.containerModifierClass+"multirow"),"column"===p.slidesPerColumnFill&&n.addClass(r.containerModifierClass+"multirow-column"),e.emitContainerClasses());var 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t=this;t.controller.spline||(t.controller.spline=t.params.loop?new ae.LinearSpline(t.slidesGrid,e.slidesGrid):new ae.LinearSpline(t.snapGrid,e.snapGrid))},setTranslate:function(e,t){var a,i,s=this,r=s.controller.control,n=s.constructor;function l(e){var t=s.rtlTranslate?-s.translate:s.translate;"slide"===s.params.controller.by&&(s.controller.getInterpolateFunction(e),i=-s.controller.spline.interpolate(-t)),i&&"container"!==s.params.controller.by||(a=(e.maxTranslate()-e.minTranslate())/(s.maxTranslate()-s.minTranslate()),i=(t-s.minTranslate())*a+e.minTranslate()),s.params.controller.inverse&&(i=e.maxTranslate()-i),e.updateProgress(i),e.setTranslate(i,s),e.updateActiveIndex(),e.updateSlidesClasses()}if(Array.isArray(r))for(var o=0;o<r.length;o+=1)r[o]!==t&&r[o]instanceof n&&l(r[o]);else r instanceof n&&t!==r&&l(r)},setTransition:function(e,t){var a,i=this,s=i.constructor,r=i.controller.control;function 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/*# sourceMappingURL=bootstrap.min.js.map*/
;/*
 * VenoBox - jQuery Plugin
 * version: 1.9.0
 * @requires jQuery >= 1.7.0
 *
 * Examples at http://veno.es/venobox/
 * License: MIT License
 * License URI: https://github.com/nicolafranchini/VenoBox/blob/master/LICENSE
 * Copyright 2013-2020 Nicola Franchini - @nicolafranchini
 *
 */

/* global jQuery */

(function($){
    "use strict";
    var autoplay, bgcolor, blockleft, blocknum, blockshare, blocktitle, border, core, container, content, dest, extraCss,
        framewidth, frameheight, gallItems, infinigall, items, keyNavigationDisabled, margine, numeratio,
        overlayColor, overlay, title, thisgall, thenext, theprev, nextok, prevok, preloader, $preloader, navigation,
        obj, gallIndex, startouch, vbheader, images, startY, startX, endY, endX, diff, diffX, diffY, threshold,
        share, sharelinks, vbfooter, sharepos,obj_link;

    var pinIcon = '<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24"><path d="M12 0c-6.627 0-12 5.372-12 12 0 5.084 3.163 9.426 7.627 11.174-.105-.949-.2-2.405.042-3.441.218-.937 1.407-5.965 1.407-5.965s-.359-.719-.359-1.782c0-1.668.967-2.914 2.171-2.914 1.023 0 1.518.769 1.518 1.69 0 1.029-.655 2.568-.994 3.995-.283 1.194.599 2.169 1.777 2.169 2.133 0 3.772-2.249 3.772-5.495 0-2.873-2.064-4.882-5.012-4.882-3.414 0-5.418 2.561-5.418 5.207 0 1.031.397 2.138.893 2.738.098.119.112.224.083.345l-.333 1.36c-.053.22-.174.267-.402.161-1.499-.698-2.436-2.889-2.436-4.649 0-3.785 2.75-7.262 7.929-7.262 4.163 0 7.398 2.967 7.398 6.931 0 4.136-2.607 7.464-6.227 7.464-1.216 0-2.359-.631-2.75-1.378l-.748 2.853c-.271 1.043-1.002 2.35-1.492 3.146 1.124.347 2.317.535 3.554.535 6.627 0 12-5.373 12-12 0-6.628-5.373-12-12-12z" fill-rule="evenodd" clip-rule="evenodd"/></svg>';
    var fbIcon = '<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24"><path d="M12 0c-6.627 0-12 5.373-12 12s5.373 12 12 12 12-5.373 12-12-5.373-12-12-12zm3 8h-1.35c-.538 0-.65.221-.65.778v1.222h2l-.209 2h-1.791v7h-3v-7h-2v-2h2v-2.308c0-1.769.931-2.692 3.029-2.692h1.971v3z"/></svg>';
    var twitterIcon = '<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24"><path d="M12 0c-6.627 0-12 5.373-12 12s5.373 12 12 12 12-5.373 12-12-5.373-12-12-12zm6.066 9.645c.183 4.04-2.83 8.544-8.164 8.544-1.622 0-3.131-.476-4.402-1.291 1.524.18 3.045-.244 4.252-1.189-1.256-.023-2.317-.854-2.684-1.995.451.086.895.061 1.298-.049-1.381-.278-2.335-1.522-2.304-2.853.388.215.83.344 1.301.359-1.279-.855-1.641-2.544-.889-3.835 1.416 1.738 3.533 2.881 5.92 3.001-.419-1.796.944-3.527 2.799-3.527.825 0 1.572.349 2.096.907.654-.128 1.27-.368 1.824-.697-.215.671-.67 1.233-1.263 1.589.581-.07 1.135-.224 1.649-.453-.384.578-.87 1.084-1.433 1.489z"/></svg>';
    var linkedinIcon = '<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24"><path d="M12 0c-6.627 0-12 5.373-12 12s5.373 12 12 12 12-5.373 12-12-5.373-12-12-12zm-2 16h-2v-6h2v6zm-1-6.891c-.607 0-1.1-.496-1.1-1.109 0-.612.492-1.109 1.1-1.109s1.1.497 1.1 1.109c0 .613-.493 1.109-1.1 1.109zm8 6.891h-1.998v-2.861c0-1.881-2.002-1.722-2.002 0v2.861h-2v-6h2v1.093c.872-1.616 4-1.736 4 1.548v3.359z"/></svg>';
    var downloadIcon = '<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24"><path d="M12 0c-6.627 0-12 5.373-12 12s5.373 12 12 12 12-5.373 12-12-5.373-12-12-12zm2 9h-4v-1h4v1zm0-3v1h-4v-1h4zm-2 13l-6-6h4v-3h4v3h4l-6 6z"/></svg>';

    $.fn.extend({
        //plugin name - venobox
        venobox: function(options) {
            var plugin = this;
            // default options
            var defaults = {
                arrowsColor : '#B6B6B6',
                autoplay : false, // same as data-autoplay - thanks @codibit
                bgcolor: '#fff',
                border: '0',
                closeBackground : 'transparent',
                closeColor : "#d2d2d2",
                framewidth: '',
                frameheight: '',
                gallItems: false,
                infinigall: false,
                htmlClose : '',
                htmlNext : '<span></span>',
                htmlPrev : '<span></span>',
                numeratio: false,
                numerationBackground : '#161617',
                numerationColor : '#d2d2d2',
                numerationPosition : 'top', // 'top' || 'bottom'
                overlayClose: true, // disable overlay click-close - thanx @martybalandis
                overlayColor : 'rgba(51, 49, 50, 0.94902)',
                spinner : 'double-bounce', // available: 'rotating-plane' | 'double-bounce' | 'wave' | 'wandering-cubes' | 'spinner-pulse' | 'chasing-dots' | 'three-bounce' | 'circle' | 'cube-grid' | 'fading-circle' | 'folding-cube'
                spinColor : '#d2d2d2',
                titleattr: 'title', // specific attribute to get a title (e.g. [data-title]) - thanx @mendezcode
                titleBackground: 'none',
                titleColor: '#9A9891',
                titlePosition : 'bottom', // 'top' || 'bottom'
                share: [], // ['facebook', 'twitter', 'linkedin', 'pinterest', 'download']
                cb_pre_open: function(){ return true; }, // Callbacks - thanx @garyee
                cb_post_open: function(){},
                cb_pre_close: function(){ return true; },
                cb_post_close: function(){},
                cb_post_resize: function(){},
                cb_after_nav: function(){},
                cb_content_loaded: function(){},
                cb_init: function(){}
            };

            var option = $.extend(defaults, options);

            // callback plugin initialization
            option.cb_init(plugin);

            return this.each(function() {

                obj = $(this);

                // Prevent double initialization - thanx @matthistuff
                if (obj.data('venobox')) {
                    return true;
                }

                // method to be used outside the plugin
                plugin.VBclose = function() {
                    closeVbox();
                };
                obj.addClass('vbox-item');
                obj.data('framewidth', option.framewidth);
                obj.data('frameheight', option.frameheight);
                obj.data('border', option.border);
                obj.data('bgcolor', option.bgcolor);
                obj.data('numeratio', option.numeratio);
                obj.data('gallItems', option.gallItems);
                obj.data('infinigall', option.infinigall);
                obj.data('overlaycolor', option.overlayColor);
                obj.data('titleattr', option.titleattr);
                obj.data('share', option.share);

                obj.data('venobox', true);

                obj.on('click', function(e){

                    e.preventDefault();
                    obj = $(this);

                    obj_link = $(this).siblings('.product-d-url').attr('href');
                    // callback plugin initialization
                    var cb_pre_open = option.cb_pre_open(obj);

                    if (cb_pre_open === false) {
                        return false;
                    }

                    // methods to be used outside the plugin
                    plugin.VBnext = function() {
                        navigateGall(thenext);
                    };
                    plugin.VBprev = function() {
                        navigateGall(theprev);
                    };

                    overlayColor = obj.data('overlay') || obj.data('overlaycolor');

                    framewidth = obj.data('framewidth');
                    frameheight = obj.data('frameheight');
                    // set data-autoplay="true" for vimeo and youtube videos - thanx @zehfernandes
                    autoplay = obj.data('autoplay') || option.autoplay;
                    border = obj.data('border');
                    bgcolor = obj.data('bgcolor');
                    nextok = false;
                    prevok = false;
                    keyNavigationDisabled = false;

                    // set a different url to be loaded using data-href="" - thanx @pixeline
                    dest = obj.data('href') || obj.attr('href');
                    extraCss = obj.data( 'css' ) || '';
                    title = obj.attr(obj.data('titleattr')) || '';
                    share = obj.data('share');

                    preloader = '<div class="vbox-preloader">';



                    switch (option.spinner) {

                        case 'rotating-plane':
                            preloader += '<div class="sk-rotating-plane"></div>';
                            break;
                        case 'double-bounce':
                            preloader += '<div class="sk-double-bounce">'+
                                '<div class="sk-child sk-double-bounce1"></div>'+
                                '<div class="sk-child sk-double-bounce2"></div>'+
                                '</div>';
                            break;
                        case 'wave':
                            preloader += '<div class="sk-wave">'+
                                '<div class="sk-rect sk-rect1"></div>'+
                                '<div class="sk-rect sk-rect2"></div>'+
                                '<div class="sk-rect sk-rect3"></div>'+
                                '<div class="sk-rect sk-rect4"></div>'+
                                '<div class="sk-rect sk-rect5"></div>'+
                                '</div>';
                            break;
                        case 'wandering-cubes':
                            preloader += '<div class="sk-wandering-cubes">'+
                                '<div class="sk-cube sk-cube1"></div>'+
                                '<div class="sk-cube sk-cube2"></div>'+
                                '</div>';
                            break;
                        case 'spinner-pulse':
                            preloader += '<div class="sk-spinner sk-spinner-pulse"></div>';
                            break;
                        case 'chasing-dots':
                            preloader += '<div class="sk-chasing-dots">'+
                                '<div class="sk-child sk-dot1"></div>'+
                                '<div class="sk-child sk-dot2"></div>'+
                                '</div>';
                            break;
                        case 'three-bounce':
                            preloader += '<div class="sk-three-bounce">'+
                                '<div class="sk-child sk-bounce1"></div>'+
                                '<div class="sk-child sk-bounce2"></div>'+
                                '<div class="sk-child sk-bounce3"></div>'+
                                '</div>';
                            break;
                        case 'circle':
                            preloader += '<div class="sk-circle">'+
                                '<div class="sk-circle1 sk-child"></div>'+
                                '<div class="sk-circle2 sk-child"></div>'+
                                '<div class="sk-circle3 sk-child"></div>'+
                                '<div class="sk-circle4 sk-child"></div>'+
                                '<div class="sk-circle5 sk-child"></div>'+
                                '<div class="sk-circle6 sk-child"></div>'+
                                '<div class="sk-circle7 sk-child"></div>'+
                                '<div class="sk-circle8 sk-child"></div>'+
                                '<div class="sk-circle9 sk-child"></div>'+
                                '<div class="sk-circle10 sk-child"></div>'+
                                '<div class="sk-circle11 sk-child"></div>'+
                                '<div class="sk-circle12 sk-child"></div>'+
                                '</div>';
                            break;
                        case 'cube-grid':
                            preloader += '<div class="sk-cube-grid">'+
                                '<div class="sk-cube sk-cube1"></div>'+
                                '<div class="sk-cube sk-cube2"></div>'+
                                '<div class="sk-cube sk-cube3"></div>'+
                                '<div class="sk-cube sk-cube4"></div>'+
                                '<div class="sk-cube sk-cube5"></div>'+
                                '<div class="sk-cube sk-cube6"></div>'+
                                '<div class="sk-cube sk-cube7"></div>'+
                                '<div class="sk-cube sk-cube8"></div>'+
                                '<div class="sk-cube sk-cube9"></div>'+
                                '</div>';
                            break;
                        case 'fading-circle':
                            preloader += '<div class="sk-fading-circle">'+
                                '<div class="sk-circle1 sk-circle"></div>'+
                                '<div class="sk-circle2 sk-circle"></div>'+
                                '<div class="sk-circle3 sk-circle"></div>'+
                                '<div class="sk-circle4 sk-circle"></div>'+
                                '<div class="sk-circle5 sk-circle"></div>'+
                                '<div class="sk-circle6 sk-circle"></div>'+
                                '<div class="sk-circle7 sk-circle"></div>'+
                                '<div class="sk-circle8 sk-circle"></div>'+
                                '<div class="sk-circle9 sk-circle"></div>'+
                                '<div class="sk-circle10 sk-circle"></div>'+
                                '<div class="sk-circle11 sk-circle"></div>'+
                                '<div class="sk-circle12 sk-circle"></div>'+
                                '</div>';
                            break;
                        case 'folding-cube':
                            preloader += '<div class="sk-folding-cube">'+
                                '<div class="sk-cube1 sk-cube"></div>'+
                                '<div class="sk-cube2 sk-cube"></div>'+
                                '<div class="sk-cube4 sk-cube"></div>'+
                                '<div class="sk-cube3 sk-cube"></div>'+
                                '</div>';
                            break;
                    }
                    preloader += '</div>';

                    navigation = '<a class="vbox-next">' + option.htmlNext + '</a><a class="vbox-prev">' + option.htmlPrev + '</a>';


                    vbheader = '<div class="vbox-title"></div><div class="vbox-left"><div class="vbox-num">0/0</div></div><div class="vbox-close">' + option.htmlClose + '</div>';
                    vbfooter = '<div class="vbox-share"></div>';

                    core = '<div class="vbox-overlay ' + extraCss + '" style="background:'+ overlayColor +'">'+
                        preloader + '<div class="vbox-container"><div class="vbox-content"></div></div>' + vbheader + navigation + vbfooter + '</div>';

                    $('body').append(core).addClass('vbox-open');

                    $('.vbox-preloader div:not(.sk-circle) .sk-child, .vbox-preloader .sk-rotating-plane, .vbox-preloader .sk-rect, .vbox-preloader div:not(.sk-folding-cube) .sk-cube, .vbox-preloader .sk-spinner-pulse').css('background-color', option.spinColor);

                    overlay = $('.vbox-overlay');
                    container = $('.vbox-container');
                    content = $('.vbox-content');
                    // btn_c = $('.venobox.vbox-item');
                    blockleft = $('.vbox-left');
                    blocknum = $('.vbox-num');
                    blockshare = $('.vbox-share');
                    blocktitle = $('.vbox-title');
                    $preloader = $('.vbox-preloader');

                    $preloader.stop().fadeIn(400);
                    overlay.removeClass('component-visible');

                    if (option.titlePosition == 'top') {
                        sharepos = 'bottom';
                    } else {
                        sharepos = 'top';
                    }
                    blockshare.css(sharepos, '30px');
                    blockshare.css({
                        'color' : option.titleColor,
                        'fill' : option.titleColor,
                        'background-color' : option.titleBackground
                    });

                    blocktitle.css(option.titlePosition, '48px');

                    blocktitle.css({
                        'color' : option.titleColor,
                        'background-color' : option.titleBackground
                    });

                    $('.vbox-close').css({
                        'color' : option.closeColor,
                        'background-color' : option.closeBackground
                    });

                    blockleft.css(option.numerationPosition, '-1px');
                    blockleft.css({
                        'color' : option.numerationColor,
                        'background-color' : option.numerationBackground
                    });

                    $('.vbox-next span, .vbox-prev span').css({
                        'border-top-color' : option.arrowsColor,
                        'border-right-color' : option.arrowsColor
                    });
                    content.html('');
                    content.css('opacity', '0');
                    overlay.css('opacity', '0');


                    // <a class="product-link product-d-url"  href=""><i class="zmdi zmdi-link"></i></a>


                    checknav();

                    // fade in overlay
                    overlay.animate({opacity:1}, 250, function(){

                        if (obj.data('vbtype') == 'iframe') {
                            loadIframe();
                        } else if (obj.data('vbtype') == 'inline') {
                            loadInline();
                        } else if (obj.data('vbtype') == 'ajax') {
                            loadAjax();
                        } else if (obj.data('vbtype') == 'video') {
                            loadVid(autoplay);
                        } else {
                            // content.html('<img src="'+dest+'">');

                            // btn_c = $('.zoom-icon');

                            // $('.zoom-icon .product-d-url').click(function () {
                            //     var link_wrap = $(this).attr('href');
                            //
                            //     console.log(link_wrap);
                            //
                            //
                            //
                            // });
                            content.html('<img src="'+dest+'"><a class="product-link"  href="'+obj_link+'"><i class="zmdi zmdi-link"></i></a>');

                            preloadFirst();
                        }
                        option.cb_post_open(obj, gallIndex, thenext, theprev);
                    });


                    /* -------- KEYBOARD ACTIONS -------- */
                    $('body').keydown(keyboardHandler);

                    /* -------- PREVGALL -------- */
                    $('.vbox-prev').on('click', function(){
                        navigateGall(theprev);

                    });
                    /* -------- NEXTGALL -------- */
                    $('.vbox-next').on('click', function(){
                        navigateGall(thenext);
                    });

                    return false;

                }); // click

                /* -------- CHECK NEXT / PREV -------- */
                function checknav(){

                    thisgall = obj.data('gall');
                    numeratio = obj.data('numeratio');
                    gallItems = obj.data('gallItems');
                    infinigall = obj.data('infinigall');
                    share = obj.data('share');
                    blockshare.html('');
                    if ( obj.data('vbtype') !== 'iframe' && obj.data('vbtype') !== 'inline' && obj.data('vbtype') !== 'ajax' ) {
                        sharelinks = {
                            pinterest : '<a target="_blank" href="https://pinterest.com/pin/create/button/?url='+obj.prop('href')+'&media='+obj.prop('href')+'&description='+title+'">'+pinIcon+'</a>',
                            facebook  : '<a target="_blank" href="https://www.facebook.com/sharer/sharer.php?u='+obj.prop('href')+'">'+fbIcon+'</a>',
                            twitter   : '<a target="_blank" href="https://twitter.com/intent/tweet?text='+title+'&url='+obj.prop('href')+'">'+twitterIcon+'</a>',
                            linkedin  : '<a target="_blank" href="https://www.linkedin.com/sharing/share-offsite/?url='+obj.prop('href')+'">'+linkedinIcon+'</a>',
                            download  : '<a target="_blank" href="'+obj.prop('href')+'">'+downloadIcon+'</a>'
                        };
                        $.each( share, function( key, value ) {
                            blockshare.append(sharelinks[value]);
                        });
                    }

                    if (gallItems) {
                        items = gallItems;
                    } else {
                        items = $('.vbox-item[data-gall="' + thisgall + '"]');
                    }

                    if (items.length < 2) {
                        infinigall = false;
                        numeratio = false;
                    }

                    thenext = items.eq( items.index(obj) + 1 );
                    theprev = items.eq( items.index(obj) - 1 );

                    if (!thenext.length && infinigall === true) {
                        thenext = items.eq(0);
                    }

                    // update gall numeration
                    if (items.length >= 1) {
                        gallIndex = items.index(obj)+1;
                        blocknum.html(gallIndex + ' / ' + items.length);
                    } else {
                        gallIndex = 1;
                    }
                    if (numeratio === true) {
                        blocknum.show();
                    } else {
                        blocknum.hide();
                    }

                    // update title
                    if (title !== '') {
                        blocktitle.show();
                    } else {
                        blocktitle.hide();
                    }

                    // update navigation arrows
                    if (!thenext.length && infinigall !== true) {
                        $('.vbox-next').css('display', 'none');
                        nextok = false;
                    } else {
                        $('.vbox-next').css('display', 'block');
                        nextok = true;
                    }

                    if (items.index(obj) > 0 || infinigall === true) {
                        $('.vbox-prev').css('display', 'block');
                        prevok = true;
                    } else {
                        $('.vbox-prev').css('display', 'none');
                        prevok = false;
                    }
                    // activate swipe
                    if (prevok === true || nextok === true) {
                        content.on(TouchMouseEvent.DOWN, onDownEvent);
                        content.on(TouchMouseEvent.MOVE, onMoveEvent);
                        content.on(TouchMouseEvent.UP, onUpEvent);
                    }
                }

                /* -------- gallery navigation -------- */
                function navigateGall(destination) {


                    var obj_link1 = $(this);



                    if (destination.length < 1) {
                        return false;
                    }
                    if (keyNavigationDisabled) {
                        return false;
                    }
                    keyNavigationDisabled = true;

                    overlayColor = destination.data('overlay') || destination.data('overlaycolor');

                    framewidth = destination.data('framewidth');
                    frameheight = destination.data('frameheight');
                    border = destination.data('border');
                    bgcolor = destination.data('bgcolor');
                    dest = destination.data('href') || destination.attr('href');

                    autoplay = destination.data('autoplay');

                    title = (destination.data('titleattr') && destination.attr(destination.data('titleattr'))) || '';

                    // swipe out item
                    if (destination === theprev) {
                        content.addClass('vbox-animated').addClass('swipe-right');
                    }
                    if (destination === thenext) {
                        content.addClass('vbox-animated').addClass('swipe-left');
                    }

                    $preloader.fadeIn();
                    overlay.removeClass('component-visible');
                    content.animate({
                        opacity : 0,
                    }, 500, function(){



                        overlay.css('background',overlayColor);

                        content
                        .removeClass('vbox-animated')
                        .removeClass('swipe-left')
                        .removeClass('swipe-right')
                        .css({'margin-left': 0,'margin-right': 0});


                        if (destination.data('vbtype') == 'iframe') {
                            loadIframe();
                        } else if (destination.data('vbtype') == 'inline') {
                            loadInline();
                        } else if (destination.data('vbtype') == 'ajax') {
                            loadAjax();
                        } else if (destination.data('vbtype') == 'video') {
                            loadVid(autoplay);
                        } else {

                            content.html('<img src="'+dest+'"><a class="product-link product-d-url"  href="'+obj_link+'"><i class="zmdi zmdi-link"></i></a>');

                            preloadFirst();
                        }

                        obj = destination;
                        checknav();
                        keyNavigationDisabled = false;
                        option.cb_after_nav(obj, gallIndex, thenext, theprev);
                    });

                }

                /* -------- KEYBOARD HANDLER -------- */
                function keyboardHandler(e) {
                    if (e.keyCode === 27) { // esc
                        closeVbox();
                    }

                    if (e.keyCode == 37 && prevok === true) { // left
                        navigateGall(theprev);
                    }

                    if (e.keyCode == 39 && nextok === true) { // right
                        navigateGall(thenext);
                    }
                }

                /* -------- CLOSE VBOX -------- */
                function closeVbox(){

                    var cb_pre_close = option.cb_pre_close(obj, gallIndex, thenext, theprev);

                    if (cb_pre_close === false) {
                        return false;
                    }

                    $('body').off('keydown', keyboardHandler).removeClass('vbox-open');

                    obj.focus();

                    overlay.animate({opacity:0}, 500, function(){
                        overlay.remove();
                        keyNavigationDisabled = false;
                        option.cb_post_close();
                    });
                }

                /* -------- CLOSE CLICK -------- */
                var closeclickclass = '.vbox-overlay';
                if(!option.overlayClose){
                    closeclickclass = '.vbox-close'; // close only on X
                }

                $('body').on('click touchstart', closeclickclass, function(e){
                    if ($(e.target).is('.vbox-overlay') ||
                        $(e.target).is('.vbox-content') ||
                        $(e.target).is('.vbox-close') ||
                        $(e.target).is('.vbox-preloader') ||
                        $(e.target).is('.vbox-container')
                    ) {
                        closeVbox();
                    }
                });

                startX = 0;
                endX = 0;

                diff = 0;
                threshold = 50;
                startouch = false;

                function onDownEvent(e){
                    content.addClass('vbox-animated');
                    startY = endY = e.pageY;
                    startX = endX = e.pageX;
                    startouch = true;
                }

                function onMoveEvent(e){
                    if (startouch === true) {
                        endX = e.pageX;
                        endY = e.pageY;

                        diffX = endX - startX;
                        diffY = endY - startY;

                        var absdiffX = Math.abs(diffX);
                        var absdiffY = Math.abs(diffY);

                        if ((absdiffX > absdiffY) && (absdiffX <= 100)) {
                            e.preventDefault();
                            content.css('margin-left', diffX);
                        }
                    }
                }

                function onUpEvent(e){
                    if (startouch === true) {
                        startouch = false;
                        var subject = obj;
                        var change = false;
                        diff = endX - startX;

                        if (diff < 0 && nextok === true) {
                            subject = thenext;
                            change = true;
                        }
                        if (diff > 0 && prevok === true) {
                            subject = theprev;
                            change = true;
                        }

                        if (Math.abs(diff) >= threshold && change === true) {
                            navigateGall(subject);
                        } else {
                            content.css({'margin-left': 0,'margin-right': 0});
                        }
                    }
                }

                /* == GLOBAL DECLERATIONS == */
                var TouchMouseEvent = {
                    DOWN: "touchmousedown",
                    UP: "touchmouseup",
                    MOVE: "touchmousemove"
                };

                /* == EVENT LISTENERS == */
                var onMouseEvent = function(event) {
                    var type;
                    switch (event.type) {
                        case "mousedown": type = TouchMouseEvent.DOWN; break;
                        case "mouseup":   type = TouchMouseEvent.UP;   break;
                        case "mouseout":   type = TouchMouseEvent.UP;   break;
                        case "mousemove": type = TouchMouseEvent.MOVE; break;
                        default:
                            return;
                    }
                    var touchMouseEvent = normalizeEvent(type, event, event.pageX, event.pageY);
                    $(event.target).trigger(touchMouseEvent);
                };

                var onTouchEvent = function(event) {
                    var type;
                    switch (event.type) {
                        case "touchstart": type = TouchMouseEvent.DOWN; break;
                        case "touchend":   type = TouchMouseEvent.UP;   break;
                        case "touchmove":  type = TouchMouseEvent.MOVE; break;
                        default:
                            return;
                    }

                    var touch = event.originalEvent.touches[0];
                    var touchMouseEvent;

                    if (type == TouchMouseEvent.UP) {
                        touchMouseEvent = normalizeEvent(type, event, null, null);
                    } else {
                        touchMouseEvent = normalizeEvent(type, event, touch.pageX, touch.pageY);
                    }
                    $(event.target).trigger(touchMouseEvent);
                };

                /* == NORMALIZE == */
                var normalizeEvent = function(type, original, x, y) {
                    return $.Event(type, {
                        pageX: x,
                        pageY: y,
                        originalEvent: original
                    });
                };

                /* == LISTEN TO ORIGINAL EVENT == */
                if ("ontouchstart" in window) {
                    $(document).on("touchstart", onTouchEvent);
                    $(document).on("touchmove", onTouchEvent);
                    $(document).on("touchend", onTouchEvent);
                } else {
                    $(document).on("mousedown", onMouseEvent);
                    $(document).on("mouseup", onMouseEvent);
                    $(document).on("mouseout", onMouseEvent);
                    $(document).on("mousemove", onMouseEvent);
                }

                /* -------- LOAD AJAX -------- */
                function loadAjax(){
                    $.ajax({
                        url: dest,
                        cache: false
                    }).done(function( msg ) {
                        content.html('<div class="vbox-inline">'+ msg +'</div>');
                        preloadFirst();

                    }).fail(function() {
                        content.html('<div class="vbox-inline"><p>Error retrieving contents, please retry</div>');
                        updateoverlay();
                    });
                }

                /* -------- LOAD IFRAME -------- */
                function loadIframe(){
                    content.html('<iframe class="venoframe" src="'+dest+'"></iframe>');
                    //  $('.venoframe').load(function(){ // valid only for iFrames in same domain
                    updateoverlay();
                    //  });
                }

                /* -------- LOAD VIDEOs -------- */
                function loadVid(autoplay){

                    var player;
                    var videoObj = parseVideo(dest);

                    // set rel=0 to hide related videos at the end of YT + optional autoplay
                    if($(window).width()<1200) {
                        var stringAutoplay = autoplay ? "?rel=0&autoplay=0&controls=1&loop=0&byline=0&transparent=0" : "?rel=0";
                    } else {
                        var stringAutoplay = autoplay ? "?rel=0&autoplay=1&controls=0&loop=1&byline=0&transparent=0" : "?rel=0";
                    }

                    var queryvars = stringAutoplay + getUrlParameter(dest);

                    if (videoObj.type == 'vimeo') {
                        player = 'https://player.vimeo.com/video/';
                    } else if (videoObj.type == 'youtube') {
                        player = 'https://www.youtube.com/embed/';
                    }
                    content.html('<div class="venoframe-wrap" id="venoframe-wrap"><iframe class="venoframe vbvid" webkitallowfullscreen mozallowfullscreen allowfullscreen allow="autoplay" frameborder="0" src="'+player+videoObj.id+queryvars+'"></iframe></div>');
                    updateoverlay();
                }

                /**
                 * Parse Youtube or Vimeo videos and get host & ID
                 */
                function parseVideo (url) {
                    url.match(/(http:|https:|)\/\/(player.|www.)?(vimeo\.com|youtu(be\.com|\.be|be\.googleapis\.com))\/(video\/|embed\/|watch\?v=|v\/)?([A-Za-z0-9._%-]*)(\&\S+)?/);
                    var type;
                    if (RegExp.$3.indexOf('youtu') > -1) {
                        type = 'youtube';
                    } else if (RegExp.$3.indexOf('vimeo') > -1) {
                        type = 'vimeo';
                    }
                    return {
                        type: type,
                        id: RegExp.$6
                    };
                }

                /**
                 * get additional video url parameters
                 */
                function getUrlParameter(name) {
                    var result = '';
                    var sPageURL = decodeURIComponent(name);
                    var firstsplit = sPageURL.split('?');

                    if (firstsplit[1] !== undefined) {
                        var sURLVariables = firstsplit[1].split('&');
                        var sParameterName;
                        var i;
                        for (i = 0; i < sURLVariables.length; i++) {
                            sParameterName = sURLVariables[i].split('=');
                            result = result + '&'+ sParameterName[0]+'='+ sParameterName[1];
                        }
                    }
                    return encodeURI(result);
                }

                /* -------- LOAD INLINE -------- */
                function loadInline(){
                    content.html('<div class="vbox-inline">'+$(dest).html()+'</div>');
                    updateoverlay();
                }

                /* -------- PRELOAD IMAGE -------- */
                function preloadFirst(){
                    images = content.find('img');

                    if (images.length) {
                        images.each(function(){
                            $(this).one('load', function() {
                                updateoverlay();
                                // console.log(images)
                            });
                        });
                    } else {
                        updateoverlay();
                    }
                }

                /* -------- FADE-IN THE NEW CONTENT -------- */
                function updateoverlay(){

                    blocktitle.html(title);
                    content.find(">:first-child").addClass('vbox-figlio').css({
                        'width': framewidth,
                        'height': frameheight,
                        'padding': border,
                        'background': bgcolor
                    });

                    $('img.vbox-figlio').on('dragstart', function(event) {
                        event.preventDefault();
                    });

                    // reset content scroll
                    container.scrollTop(0);

                    updateOL();

                    content.animate({
                        'opacity': '1'
                    },'fast', function(){
                        $preloader.stop().fadeOut(200,function(){
                            overlay.addClass('component-visible');
                        });
                    });

                    option.cb_content_loaded(obj, gallIndex, thenext, theprev);
                }

                /* -------- CENTER FRAME -------- */
                function updateOL(){

                    var sonH = content.outerHeight();
                    var finH = $(window).height();

                    if (sonH + 60 < finH) {
                        margine = (finH - sonH)/2;
                    } else {
                        margine = '30px';
                    }
                    content.css('margin-top', margine);
                    content.css('margin-bottom', margine);
                    option.cb_post_resize();
                }

                $(window).resize(function(){
                    if($('.vbox-content').length){
                        setTimeout(updateOL(), 800);
                    }
                });

            }); // each
        } // venobox
    }); // extend
})(jQuery);




;var Url_GAR = XHR_Url+'/ajax';
var jsonMapData;
var isBackSearch = 0;
var rs = {};
function showRoomInfoModal(id, $currentUnit){
    jQuery('.blue-hover[data-id="'+id+'"]').trigger( "click" );
}
jQuery(document).ready(function () {
    doAdditionalBindings();
    bindLGpopup();
    if(jsonMapData != undefined && jsonMapData != '')
    {
        var data = eval(JXG.decompress(jsonMapData));

        for (var obj in data) {
            rs[data[obj].unitNumber] = data[obj];
        }

    }
    if (window.history) {

        $(window).on('popstate', function () {
            isBackSearch = 1;
            getPage();
        });
    }
    if (jQuery('#datePicker').length) {

        var Today = new Date();
        var SelectedDate = new Date(
            $('#move_date').val(),
        );
        //console.log(SelectedDate);
        if (SelectedDate > Today)
        {
            var dateToday = new Date(jQuery('#move_date').val());
            dateToday.setDate(dateToday.getDate() + 1);
        }
        else
        {
            var dateToday = Today;
        }
        //console.log(dateToday);
       /* $('#datePicker').datepicker({
            startDate: new Date(dateToday.getFullYear(), dateToday.getMonth(), dateToday.getDate()),

            onSelect: function(dateText) {
                console.log('date');
                jQuery('#move_date').val(this.value);
            }
        });*/
        $('#datePicker').datepicker({
            startDate: new Date(dateToday.getFullYear(), dateToday.getMonth(), dateToday.getDate()),
        }).on('changeDate', function(dateText) {
            console.log(dateText.format());
            jQuery('#move_date').val(this.value);
        });
    }
    /*jQuery(".fancybox").fancybox({});
    var swiper = new Swiper('#swiper-slider', {
        loop: true,
        navigation: {
            nextEl: '.swiper-button-next',
            prevEl: '.swiper-button-prev',
        }
    });
*/
    jQuery('#apply-filters').on('click', function () {

        $(".sub-filter-wrap").slideUp(200);
        $("#search-btn").fadeOut(0);
        $("#filters-reset-btns").addClass('d-flex');

        src_frm_id = 'frmqSearch1';
        getPage(src_frm_id);

    });
});
function doAdditionalBindings() {

    jQuery('.check-c input[type=radio]').on('change', function () {
        jQuery('.check-c input[type=radio]').removeClass('active');
    });
    $('#search-btn').click(function () {
        $('#sub-filter').slideDown();
        $('#overlay, #overlay-big-filters').fadeIn(200);
        return false;
    });
    $('#edit-filters').click(function () {
        $('#sub-filter').slideDown();
        $('#overlay, #overlay-big-filters').fadeIn(200);
        return false;
    });
    $('#close-sub-filter, #overlay-big-filters, #overlay').click(function () {
        $('#sub-filter').slideUp();
        $('#overlay, #overlay-big-filters').fadeOut(200);

        return false;
    });
    $('#advancet-options').click(function () {
        $(this).text('Advanced Filters').toggleClass('change-text');
        $('#level-two-sub-filter').slideToggle();
        if ($(this).is('.change-text')) {
            $(this).text('Close Advanced Filter')
        }
        return false;
    });
    $('.floor-plan').find('a').click(function () {
        $(this).toggleClass('active');
        return false;
    });
    $('.toggle-filters-section').click(function () {
        $(this).next('.sub-sub-filters-section').slideToggle(300);
        $(this).toggleClass('active');
        return false;
    });
    $('.minus').click(function () {
        var $input = $(this).parent().find('input');
        var data = $input.data('value');
        var count = parseInt(data) - 1;
        var unitData = $(this).parent().find('input').data('unit');
        

        if(count != 0)
            count = count < 1 ? 1 : count;

        $input.data('value',count);
        console.log(data);
        $input.val(count);
         if(unitData == 'bed')
        {
            jQuery('input[name="bed"]').val(count);
        }
        $input.change();
        //return false;

        if(count == 0) {
           $input.data('value',0);
            $input.val('Any');
            $input.change();
            $(this).css('pointer-events','none');
            return false;
        }

    });

    $('.plus').click(function () {

        var $input = $(this).parent().find('input');
        var data = $(this).parent().find('input').data('value');
        var unitData = $(this).parent().find('input').data('unit');

        $input.data('value',parseInt(data) + 1);
        $input.val(parseInt(data) + 1);
         if(unitData == 'bed')
        {
            jQuery('input[name="bed"]').val(parseInt(data) + 1);
        }
        $input.change();
        $(this).parent().find('.minus').css('pointer-events','all');
        return false;
   });

    var results_wrap = $('.items-results-wrap').height();
    $('#overlay').height(results_wrap + 300);


    $('.additionally-content__acc-btn-arrow').click(function () {
        $(this).parents('.item-result').toggleClass('shadow-bottom');
        $(this).parent().parent('.additionally-content').slideToggle(300);
    });
    if($('#minprice').val() != ''){
        var min_price = $('#minprice').val();
    }
    else{
        var min_price = MinPrice;
    }

    if($('#maxprice').val() != ''){
        var max_price = $('#maxprice').val();
    }
    else{
        var max_price = MaxPrice;
    }

    if($('#minfloor').val() != ''){
        var min_floor = $('#minfloor').val();
    }
    else{
        var min_floor = 2;
    }

    if($('#maxfloor').val() != ''){
        var max_floor = $('#maxfloor').val();
    }
    else{
        var max_floor = 11;
    }

    if($('#minsqft').val() != ''){
        var min_sqft = $('#minsqft').val();
    }
    else{
        var min_sqft = MinSqft;
    }

    if($('#maxsqft').val() != ''){
        var max_sqft = $('#maxsqft').val();
    }
    else{
        var max_sqft = MaxSqft;
    }
    PriceRangeSlider1(min_price,max_price);
    PriceRangeSlider2(min_price,max_price);
    UnitSqftSlider(min_sqft,max_sqft);
    FloorSlider(min_floor,max_floor);
    jQuery('#apply-filters').on('click', function () {

        $(".sub-filter-wrap").slideUp(200);
        $("#search-btn").fadeOut(0);
        $("#filters-reset-btns").addClass('d-flex');

        src_frm_id = 'frmqSearch1';
        getPage(src_frm_id);

    });
    $('.sub-filter-btn-advanced').click(function () {
        $(this).toggleClass('arrow-rotate');
        $(".filter-advanced-wrap").slideToggle(200);
    });
    /*jQuery('.qs-beds input').on('click', function () {
        src_frm_id = 'frmqSearch1';

        getPage(src_frm_id);
    });*/
    jQuery('.qs-bed input').on('click', function () {
        src_frm_id = 'frmqSearch';

        getPage(src_frm_id);
    });
    jQuery('#reset-all, #reset').on('click', function () {

        $('input[type=checkbox]').each(function()
        {
            this.checked = false;
        });
        $('input[type=radio]').each(function()
        {
            this.checked = false;
        });
        $('.qs-floor input').each(function() {
            $(this).removeClass('active');
        });
        resetSlider(MinPrice,MaxPrice);
        FloorSlider(2,11);
        UnitSqftSlider(MinSqft,MaxSqft);

        src_frm_id = 'frmqSearch1';
        getPage(src_frm_id);
    });
    function resetSlider() {
        var minval = jQuery('#minprice').val('');
        var maxval = jQuery('#maxprice').val('');
        var $slider = $(".slider--range #slider-price-range");
        $slider.slider("values", 0, minval);
        $slider.slider("values", 1, maxval);
    }
    rs = {};
    if(jsonMapData != undefined && jsonMapData != '')
    {
        var data = eval(JXG.decompress(jsonMapData));

        for (var obj in data) {
            rs[data[obj].unitNumber] = data[obj];
        }
    }
    $('.items-results-wrap').find('.item-result-toggle').click(function () {
        if (jQuery(this).is("img")) {
           // console.log('img');
            if (jQuery(this).closest('div.item-result-toggle').next().next('.additionally-content').is(':visible') == false) {
                var send_data = [];

                send_data.push({name: 'log_unique_number', value: jQuery(this).attr('data-floorplan')});
                send_data.push({name: 'log_type', value: 'Floor Plan'});

                jQuery.jAjaxCall({
                    send_data: send_data,
                    xhr_area: 'AajaxRequest',
                    xhr_module: 'Log',
                    xhr_action: '',
                    xhr_url: Url_GAR,
                    fn_alert: function (mt, m) {

                    },
                    callbefore_send: function (jqXHR, settings) {

                    },
                    callback_on_success: function (data, textStatus, jqXHR) {

                    },
                    callback_on_error: function (jqXHR, textStatus, errorThrown) {
                    },
                    callback_on_complete: function (jqXHR, textStatus) {
                    }
                }, 'log');
            }
            // jQuery(this).closest('div.item-result-toggle').next().next('.additionally-content').slideToggle(300);
            // jQuery(this).closest('div.item-result-toggle').parent('.item-result').toggleClass('shadow-bottom');
        } else {

            if (jQuery(this).next().next('.additionally-content').is(':visible') == false) {
                var send_data = [];

                send_data.push({name: 'log_unique_number', value: jQuery(this).attr('data-floorplan')});
                send_data.push({name: 'log_type', value: 'Floor Plan'});

                jQuery.jAjaxCall({
                    send_data: send_data,
                    xhr_area: 'AajaxRequest',
                    xhr_module: 'Log',
                    xhr_action: '',
                    xhr_url: Url_GAR,
                    fn_alert: function (mt, m) {

                    },
                    callbefore_send: function (jqXHR, settings) {

                    },
                    callback_on_success: function (data, textStatus, jqXHR) {

                    },
                    callback_on_error: function (jqXHR, textStatus, errorThrown) {
                    },
                    callback_on_complete: function (jqXHR, textStatus) {
                    }
                }, 'log');
            }

            // jQuery(this).next().next('.additionally-content').slideToggle(300);

           //  jQuery(this).parent('.item-result').toggleClass('shadow-bottom');
        }

        $(this).next().next('.additionally-content').slideToggle(300);
        $(this).parent('.item-result').toggleClass('shadow-bottom');
    });

    $('#search-dropdown-filter').find('.dropdown-menu').find('.dropdown-item').click(function () {
        var txt = $(this).text();
        $('#search-dropdown-filter').find('.dropdown-toggle').text(txt);
        var arrTmp = jQuery(this).attr('data-val').split('|');
        jQuery("#so").val(arrTmp[0]);
        jQuery("#sd").val(arrTmp[1]);

        getPage('frmqSearch');
    });

    /* floorplan.js code */
    if ($('.filter-btn-js').length) {
        $('.filter-btn-js').on('click', function () {
            $('.filter-btn__dropdown-js').not($(this).parent('.filter-btn__dropdown-js')).removeClass('is-active');
            $(this).parent('.filter-btn__dropdown-js').toggleClass('is-active');
            return false;
        })
        $('body').on('click', function (e) {
            // console.log( $(e.target).parents('.filter-btn__dropdown-js'))
            if ($(e.target).is('.filter-btn__dropdown-js') || $(e.target).parents('.filter-btn__dropdown-js').length) {
            } else {
                $('.filter-btn__dropdown-js.is-active').removeClass('is-active')
            }
        })
    }

    $('.grid-btn-toggle').click(function () {
        $('.grid-btn-toggle').removeClass('active');
        $(this).addClass("active");
        $('.item-result').addClass('animateOp');
        setTimeout(function () {
            $('.item-result').removeClass('animateOp');
        }, 300);
    });
    $('.grid-btn-list').click(function () {
        $('.item-result').removeClass('item-result--gallery').addClass('item-result--list');
    });
    $('.grid-btn-gallery').click(function () {
        $('.item-result').removeClass('item-result--list').addClass('item-result--gallery');
    });
    $('.item-result-content-wrap').click(function () {
        $(this).next(".item-result-table").slideToggle(200);
        $(this).toggleClass('table-open arrow-rotate');
        // console.log('click-wrap')
    });
    $('.show-less-btn').click(function () {
        $(this).parents('.item-result-table').slideUp(200);
        $(this).parents('.item-result-table').prev('.item-result-content-wrap').removeClass('table-open arrow-rotate');
    });
    $('.filter-side__btn').click(function () {
        $(".sub-filter-wrap").slideDown(200);
    });
    $('.model-3d-wrap, .sub-filter-back-btn').click(function () {
        $(".sub-filter-wrap").slideUp(200);
    });

    $('.edit-btn').click(function () {
        $(".sub-filter-wrap").slideDown(200);
    });
    if ($('.price-filter-btn').length) {
        $('.filter-dropdown-menu .dropdown-item').on('click', function () {
            $('.item-result').addClass('animateOp');
            setTimeout(function () {
                $('.item-result').removeClass('animateOp');
            }, 300);
        });
        $('#lowToHight').on('click', function () {
            $('.item-result').each(function () {
                let thisPrice = $(this).find('.price').text();
                let priceNumb = thisPrice.match(/\d/g);
                priceNumb = priceNumb.join("");
                $(this).css('order', priceNumb);
            });
            $('.price-filter-btn').removeClass('price-down');
        });
        $('#highToLow').on('click', function () {
            $('.item-result').each(function () {
                let thisPrice = $(this).find('.price').text();
                let priceNumb = thisPrice.match(/\d/g);
                priceNumb = -1 * priceNumb.join("");
                $(this).css('order', priceNumb);
            });
            $('.price-filter-btn').addClass('price-down');
        });
        $('#largestUnits').on('click', function () {
            $('.item-result').each(function () {
                let thisPrice = $(this).find('.sqft-count').text();
                let priceNumb = thisPrice.match(/\d/g);
                priceNumb = -1 * priceNumb.join("");
                $(this).css('order', priceNumb);
            });
            $('.price-filter-btn').addClass('price-down');
        });
        $('#smallestUnits').on('click', function () {
            $('.item-result').each(function () {
                let thisPrice = $(this).find('.sqft-count').text();
                let priceNumb = thisPrice.match(/\d/g);
                priceNumb = priceNumb.join("");
                $(this).css('order', priceNumb);
            });
            $('.price-filter-btn').removeClass('price-down');
        });
    }
}
function bindLGpopup()
{
    jQuery('.popup-modal-lg').unbind('click');
    jQuery('.popup-modal-lg').on('click',function(){

        var url = jQuery(this).attr('data-url');
        var type = jQuery(this).attr('data-target');
        var id = jQuery(this).attr('data-id');

        jQuery('#modal__content').html('<p class="text-center"><br>Loading ...</p>');

        jQuery('#modal-popup-lg').modal('show');

        jQuery('#modal__content').load( Site_Root + url,function(e) {
            if (window.location.href.indexOf("unitDetail") > -1) {
                window.history.pushState(null, null, null);
            }
            else
            {
                window.history.pushState(null, null, window.location.href+'/unitDetail-'+id);
            }
            //bindLGpopup();
            //e.preventDefault();
            if (jQuery('#datePicker').length) {
                var Today = new Date();
                var SelectedDate = new Date(
                    $('#move_date').val(),
                );
               // console.log(SelectedDate);
                if (SelectedDate > Today)
                {
                    var dateToday = new Date(jQuery('#move_date').val());
                    dateToday.setDate(dateToday.getDate() + 1);
                }
                else
                {
                    var dateToday = Today;
                }
                //console.log(dateToday);
                /*$('#datePicker').datepicker({
                    startDate: new Date(dateToday.getFullYear(), dateToday.getMonth(), dateToday.getDate()),
                    onSelect: function(dateText) {
                        jQuery('#move_date').val(this.value);
                    }
                });*/
                $('#datePicker').datepicker({
                    startDate: new Date(dateToday.getFullYear(), dateToday.getMonth(), dateToday.getDate()),
                }).on('changeDate', function(dateText) {
                    jQuery('#move_date').val(this.value);
                });
            }
            // jQuery(".fancybox").fancybox({});
            if ($('.venobox').length) {
                let venobox_c = $('.venobox').venobox({
                    titleattr: 'data-title'
                });
            }
            if(window.innerWidth > 575) {
                let swiper = new Swiper('#swiper-slider', {
                    navigation: {
                        nextEl: '.swiper-button-next',
                        prevEl: '.swiper-button-prev',
                    }
                });
            }
            if(window.innerWidth < 576) {
                let swiper_thumbs = new Swiper('#slider-preview', {
                    spaceBetween: 12,
                    threshold: 10,
                    slidesPerView: 'auto',
                    breakpoints: {
                        419: {
                            slidesPerView: 3
                        },

                    }
                });
                let swiper_with_fraction = new Swiper('#swiper-slider', {
                    pagination: {
                        el: '.swiper-pagination',
                        type: 'fraction',
                        renderFraction: function (currentClass, totalClass) {
                            return '<span class="' + currentClass + '"></span>' +
                                ' of ' +
                                '<span class="' + totalClass + '"></span>';
                        }
                    },
                    thumbs: {
                        swiper: swiper_thumbs,
                    }
                });


            }

            jQuery('#schedule').on('click',function(){
                jQuery('#iframeModal iframe').css('height','515px')
            });

            //doInputMasking();

            var swiper = new Swiper('#swiper-calendar', {
                slidesPerView: 3,
                spaceBetween: 10,
                slidesPerGroup: 3,
                loop: false,
                nextButton: '.swiper-button-next1',
                prevButton: '.swiper-button-prev1',
            });


            var img = document.getElementById('box-height-1');
            if (img != null){
                img.onload = function () {
                    var maxHeight = (this.height);
                    $('.box-height-2').height(maxHeight);
                };
            }
            var minHeight = $('#box-height-1').height();
            $('.box-height-2').height(minHeight);


            $(window).on('resize', function () {
                var img = document.getElementById('box-height-1');
                if (img != null) {
                    img.onload = function () {
                        var maxHeight = (this.height);
                        $('.box-height-2').height(maxHeight);
                    };
                }

                var minHeight = $('#box-height-1').height();
                $('.box-height-2').height(minHeight);
            });
            //ContactUS();


            $("#modal-popup-lg").on("hidden.bs.modal", function () {
                // if(jQuery('.floorplan').length)
                // {
                //
                //     hideRoomInfoModal();
                // }
                AppSecondaryInfo.showAgain();
                var u_url = window.location.href;
                u_url = u_url.replace('/unitDetail-'+id,'');

                window.history.pushState(null, null, u_url);
            });
            $('.modal-box-content').find('.close').click(function () {
                if(jQuery('.floorplan').length)
                {

                    hideRoomInfoModal();
                }

            });
            if(jQuery('.floorplan').length)
            {
                $("#search-page .modal-box-content").on("shown.bs.modal", function () {
                    if (typeof AppSecondaryInfo !== 'undefined') {
                        AppSecondaryInfo.hideTemporary();
                    }
                });


            }
        });
        if(jQuery('.floorplan').length) {
            if (typeof AppSecondaryInfo !== 'undefined') {
                AppSecondaryInfo.hideTemporary();
            }
        }
    });

}
function PriceRangeSlider1(min_price,max_price) {
    $("#slider-price-range").slider({
        range: true,
        min: Number(MinPrice),
        max: Number(MaxPrice),
        values: [min_price, max_price],
        slide: function (event, ui) {
            jQuery('#minprice1').val(ui.values[0]);
            jQuery('#maxprice1').val(ui.values[1]);
            $('#slider-range-w2').find('.slider-vals__min-js').find('.slider-val-js').text(ui.values[0]);
            $('#slider-range-w2').find('.slider-vals__max-js').find('.slider-val-js').text(ui.values[1]);
        }
    });
}
function PriceRangeSlider2(min_price,max_price) {
    if ($('#slider-range').length) {
        $("#slider-range").slider({
            range: true,
            min: Number(MinPrice),
            max: Number(MaxPrice),
            values: [min_price, max_price],
            slide: function (event, ui) {
                jQuery('#minprice').val(ui.values[0]);
                jQuery('#maxprice').val(ui.values[1]);
                $("#slider-range").find(".ui-slider-handle").html('<div class="show-val-box"></div>');
                /*$("#slider-range").find(".show-val-box").text("$" + ui.values[0]);
                $("#slider-range").find(".ui-slider-handle + .ui-slider-handle").find('.show-val-box').text("$" + ui.values[1]);*/
            },
            change: function (event) {
                event.preventDefault();

                src_frm_id = 'frmqSearch';
                getPage(src_frm_id);
            }
        });
        setTimeout(function () {
            $("#slider-range").find(".ui-slider-handle").html('<div class="show-val-box"></div>');
            //$("#slider-range").find(".show-val-box").text("$" + $("#slider-range").slider("values", 0));
            //$("#slider-range").find(".ui-slider-handle + .ui-slider-handle").find('.show-val-box').text("$" + $("#slider-range").slider("values", 1));
        }, 1000);
    }
}
function FloorSlider(minfloor,maxfloor)
{
    $("#slider-floor-range").slider({
        range: true,
        min: 2,
        max: 11,
        values: [minfloor, maxfloor],
        slide: function (event, ui) {
            jQuery('#minfloor').val(ui.values[0]);
            jQuery('#maxfloor').val(ui.values[1]);
            $('#slider-range-w4').find('.slider-vals__min-js').find('.slider-val-js').text(ui.values[0]);
            $('#slider-range-w4').find('.slider-vals__max-js').find('.slider-val-js').text(ui.values[1]);
        }
    });
}
function UnitSqftSlider(min_sqft,max_sqft)
{
    $("#slider-size-range").slider({
        range: true,
        min:Number(MinSqft),
        max: Number(MaxSqft),
        values: [min_sqft, max_sqft],
        slide: function (event, ui) {
            jQuery('#minsqft').val(ui.values[0]);
            jQuery('#maxsqft').val(ui.values[1]);
            $('#slider-range-w3').find('.slider-vals__min-js').find('.slider-val-js').text(ui.values[0]);
            $('#slider-range-w3').find('.slider-vals__max-js').find('.slider-val-js').text(ui.values[1]);
        }
    });
}
function getPage(searchForm, BuildingFloor) {

    /* Means user has clicked Search Button [Start New Search]*/
    param= [];
    search_param = [];

    if(searchForm)
    {

        if(BuildingFloor)
        {
            b_floor = BuildingFloor;

            if(jQuery('input[name="bfloor"]').length > 0){
                jQuery('input[name="bfloor"]').val(b_floor)
            }
            else{
                param.push({name:'bfloor',value:b_floor});
            }
        }
        else if(BuildingFloor == false)
        {
            jQuery('input[name="bfloor"]').val('');
        }

        search_param = jQuery("#"+searchForm).serializeArray();
        // console.log(search_param);
        var floor_plan = [];
        var floor = [];

        jQuery.each( jQuery('#floor-plan .active'), function( key, value ) {
            floor_plan.push(value.text.toLowerCase());
        });

        param.push({name:'floorplan',value:floor_plan});
        jQuery.each( jQuery('#floor .active'), function( key, value ) {
            floor.push(value.text);
        });
        param.push({name:'floor',value:floor});
    }
    param.push({name:'isBackSearch',value:isBackSearch});

    filter_param = jQuery('#frmFilter').serializeArray();
    jQuery.merge(jQuery.merge(param,search_param),filter_param);
    jQuery.jAjaxCall({
        abort_on_new_req    :   true,
        xhr_area    :   'LResult',
        xhr_module  :   'MS_LP',
        xhr_action  :   '',
        send_data    :   param,
        xhr_timeout :   (1000*25),
        xhr_url     :   Url_GAR,
        callbefore_send :   function(jqXHR, settings){
            Loading = false;
            //ShowHide_Loader('show');
        },
        callback_on_success: function(data, textStatus, jqXHR){
            if(data.DATA && data.DATA.weburl && isBackSearch == 0 )
            {
                window.history.pushState(null, null, data.DATA.weburl);

            }
            doAdditionalBindings();
            bindLGpopup();
            //jQuery('#back_to_building').trigger('click');
            jQuery('#floorplans').addClass('cursor-pointer');
            jQuery('#overlay-big-filters').css('display','none');
            var element = $('<div/>').attr('class', 'floorplan');
            MFS.building.floorplan.setAvailableUnits(1);
            MFS.building.floorplan.changeAvailableUnits(element);
            MFS.building.floorplan.tooltip.bindEvents(element);
            isBackSearch =0;

            if(searchForm !== 'frmqSearch')
            {
                 $(".sub-filter-wrap").slideUp(200);
                 $(".filter-side__btn").fadeOut(0);
                 $(".filters-reset-btns").addClass('d-flex');
            }
        },
        callback_on_complete: function(jqXHR, textStatus){
            Loading = false;
            // ShowHide_Loader('hide');

        },
    },'listingresultload');

    return false;
}
$(document).ready(function(){
    $('.venobox').venobox();
});;'use strict';
var bodyScrollBar = null;
let bool_343 = true;
let offset_top = 0;
if ($('#banner-reverse--secondary').length) {
    offset_top = $('#banner-reverse--secondary').offset().top;
}
if (window.innerWidth > 1199) {
    if ($('.uprise-pic-wrap-js').length) {
        gsap.set($('.uprise-pic-wrap-js').not('.uprise-pic-wrap-2-js'), {scale: .6});
    }
    if ($('.smooth-js').length) {
        let options = {
            damping: 0.1,
            delegateTo: document,
            thumbMinSize: 50,
            renderByPixels: true,
            alwaysShowTracks: false,
            continuousScrolling: true,
            wheelEventTarget: null,
            plugins: {}
        };
        bodyScrollBar = Scrollbar.init(document.body, options);
        bodyScrollBar.setPosition(0, 0);
        ScrollTrigger.scrollerProxy(document.body, {
            scrollTop(value) {
                if (arguments.length) {
                    bodyScrollBar.scrollTop = value;
                }
                return bodyScrollBar.scrollTop;
            }
        });
        bodyScrollBar.addListener(ScrollTrigger.update);
        let circle_is = false,
            second_section = undefined;
        if ($('#home').length) {
            $('#circle-link__img').addClass('play');
            circle_is = true;
            $(window).on('load', function () {
                second_section = $('#banner').offset().top;
            });
        }
        bodyScrollBar.addListener((scroll) => {
            let scrollOffset = bodyScrollBar.scrollTop;
            if ($('#banner-map').length) {
                if (scrollOffset + $(window).height() > offset_top) {
                    if (bool_343) {
                        var s = document.createElement('script');
                        s.src = host + '/libs/OE_Theme/js/mapbox-gl.js';
                        document.querySelector('body').appendChild(s);
                        bool_343 = false;
                        s.onload = function () {
                            let s_last = document.createElement('script');
                            s_last.src = host + '/libs/OE_Theme/js/homepage-map.js';
                            document.querySelector('body').appendChild(s_last);
                        }
                    }
                }
            }
            if (circle_is) {
                if (second_section < scrollOffset) {
                    $('#circle-link__img').removeClass('play');
                }
                if (second_section > scrollOffset) {
                    $('#circle-link__img').addClass('play');
                }
            }
            if (scrollOffset > 0) {
                $('body').addClass('is-offset-top');
            } else {
                $('body').removeClass('is-offset-top');
            }
        });
        if ($('.scroll-content').length) {
            $('#header,#renderArea').prependTo('body');
        }
    }
}
//  <img src="images/min/1bed-02-min.jpg" data-src="images/1bed-02.jpg" class="lazy" alt="">
if ($('#neighborhood').length) {
    let ua = navigator.userAgent.toLowerCase();
    if (ua.indexOf('safari') != -1) {
        if (ua.indexOf('chrome') > -1) {
        } else {
            $('#neighborhood').addClass('disable-hero-amin');
        }
    }
}
if (!$('#floorplans').length) {
    document.addEventListener("DOMContentLoaded", yall);
    gsap.registerPlugin(ScrollTrigger, SplitText);
}
let windowH = $(window).height();
let vh = window.innerHeight * 0.01;
document.documentElement.style.setProperty('--vh', `${vh}px`);
document.documentElement.style.setProperty('--vh-stat', `${vh}px`);
document.documentElement.style.setProperty('--before-js', `auto`);
if (!/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)) {
    document.documentElement.style.setProperty('--vh-stat', '1vh');
}
window.addEventListener('resize', () => {
    let vh = window.innerHeight * 0.01;
    document.documentElement.style.setProperty('--vh', `${vh}px`);
});
if (!$('.smooth-js').length || window.innerWidth < 1200) {
    $(window).on('load scroll', function () {
        let scrollTop = $(this).scrollTop();
        if ($('#banner-map').length) {
            if (scrollTop + $(window).height() > $('#banner-reverse--secondary').offset().top) {
                if (bool_343) {
                    var s = document.createElement('script');
                    s.src = host + '/libs/OE_Theme/js/mapbox-gl.js';
                    document.querySelector('body').appendChild(s);
                    bool_343 = false;
                    s.onload = function () {
                        let s_last = document.createElement('script');
                        s_last.src = host + '/libs/OE_Theme/js/homepage-map.js';
                        document.querySelector('body').appendChild(s_last);
                    }
                }
            }
        }
        if (scrollTop > 0) {
            $('body').addClass('is-offset-top');
        }
        if (scrollTop === 0) {
            $('body').removeClass('is-offset-top');
        }
    })
}
let tl = gsap.timeline({
        paused: true
    }),
    obj_prop = {
        x: 0,
        autoAlpha: 1,
        duration: 1,
        ease: 'Power4.easeOut',
        stagger: {
            each: .1,
        }
    },
    body = $('body');
tl.to('.sd-wow-mob', obj_prop);
$(window).on('load', function (e) {
    //residences
    if ($('#v-pills-tabContent').length) {
        if ($(window).height() < 751 && $(window).width() > 1199) {
            ScrollTrigger.create({
                trigger: '#pic-tabs__container',
                pin: '#v-pills-tabContent',
                start: 'top top+=98px',
                pinType: 'transform',
                pinSpacing: false,
                // markers: true,
                end: 'bottom bottom'
            });
        }
    }
    if (window.innerWidth < 992) {
        if ($('#pic-tabs__swiper-container').length) {
            $('#mob-swiper').addClass('swiper-container');
            $('#mob-swiper').find('#v-pills-tabContent').addClass('swiper-wrapper');
            $('#mob-swiper').find('.tab-pane').addClass('swiper-slide');
            let pic_tabs_swiper = new Swiper('#pic-tabs__swiper-container', {
                centeredSlides: true,
                speed: 500,
                slidesPerView: 'auto',
                slideToClickedSlide: true,
                autoplay: {
                    delay: 2000,
                },
                spaceBetween: 30
            });
            let pic_tabs_swiper_2 = new Swiper('#mob-swiper', {
                speed: 500,
                autoplay: {
                    delay: 2000,
                },
                spaceBetween: 0
            });
            ScrollTrigger.create({
                trigger: '#pic-tabs',
                start: 'top bottom',
                // markers: true,
                end: 'bottom top',
                onEnter: function () {
                    pic_tabs_swiper.autoplay.start();
                    pic_tabs_swiper.autoplay.start();
                },
                onEnterBack: function () {
                    pic_tabs_swiper.autoplay.start();
                    pic_tabs_swiper_2.autoplay.start()
                },
                onLeave: function () {
                    pic_tabs_swiper.autoplay.stop();
                    pic_tabs_swiper_2.autoplay.stop();
                },
                onLeaveBack: function () {
                    pic_tabs_swiper.autoplay.stop();
                    pic_tabs_swiper_2.autoplay.stop();
                }
            });
            pic_tabs_swiper.autoplay.stop();
            pic_tabs_swiper_2.autoplay.stop();
            pic_tabs_swiper.on('transitionStart', function () {
                pic_tabs_swiper_2.slideTo(pic_tabs_swiper.activeIndex);
            });
            pic_tabs_swiper_2.on('transitionStart', function () {
                pic_tabs_swiper.slideTo(pic_tabs_swiper_2.activeIndex);
            });
            // pic_tabs_swiper.on('slideChangeTransitionEnd', function () {
            //     $($('.nav-link__wrap')[pic_tabs_swiper.activeIndex]).find('.nav-link').tab('show');
            // });
        }
    }
    //home
    if ($('#home').length) {
        let images_swiper = new Swiper('#images-slider-js', {
            speed: 500,
            spaceBetween: 25
        });
        let txt_swiper = new Swiper('#txt-slider-js', {
            speed: 500,
            effect: 'fade',
            autoHeight: true,
            fadeEffect: {
                crossFade: true
            },
            pagination: {
                el: '.swiper-pagination',
                type: 'bullets',
                clickable: true,
            }
        });
        txt_swiper.on('transitionStart', function () {
            images_swiper.slideTo(txt_swiper.activeIndex);
        });
        images_swiper.on('transitionStart', function () {
            txt_swiper.slideTo(images_swiper.activeIndex);
        });
        // if (window.innerWidth > 1199) {
        //     function default_wave() {
        //         let scene, camera, renderer;
        //         const [width, height] = [$(window).width() / 2, $(window).height()];
        //         let flag, flag2, flag3, flag4, flag5, flag6, flag7, flag8;
        //         let flagColor = '#a17f44';
        //         const [sizeW, sizeH, segW, segH] = [1, 100, 1, 100];
        //         const init = () => {
        //             scene = new THREE.Scene();
        //             scene.background = new THREE.Color('#060606');
        //             camera = new THREE.PerspectiveCamera(60, width / height, 1, 1000);
        //             camera.position.x = 20 * Math.sin(-47 * Math.PI / 180);
        //             camera.position.z = 30 * Math.cos(-47 * Math.PI / 180);
        //             camera.lookAt(new THREE.Vector3(0, 0, 0));
        //             renderer = new THREE.WebGLRenderer({antialias: true});
        //             renderer.setSize(width, height);
        //             if ($('#renderArea').find('canvas')) {
        //                 $('#renderArea').find('canvas').remove();
        //             }
        //             document.getElementById("renderArea").appendChild(renderer.domElement);
        //             const light = new THREE.DirectionalLight("#ffffff");
        //             light.position.set(0, 0, 50);
        //             scene.add(light);
        //             const ambientLight = new THREE.AmbientLight("#a17f44");
        //             scene.add(ambientLight);
        //             let material = new THREE.MeshLambertMaterial({
        //                 color: flagColor,
        //                 side: THREE.DoubleSide
        //             });
        //             let geometry = new THREE.PlaneGeometry(sizeW, sizeH, segW, segH);
        //             let geometry2 = new THREE.PlaneGeometry(sizeW, sizeH, segW, segH);
        //             let geometry3 = new THREE.PlaneGeometry(sizeW, sizeH, segW, segH);
        //             let geometry4 = new THREE.PlaneGeometry(sizeW, sizeH, segW, segH);
        //             let geometry5 = new THREE.PlaneGeometry(sizeW, sizeH, segW, segH);
        //             let geometry6 = new THREE.PlaneGeometry(sizeW, sizeH, segW, segH);
        //             let geometry7 = new THREE.PlaneGeometry(sizeW, sizeH, segW, segH);
        //             let geometry8 = new THREE.PlaneGeometry(sizeW, sizeH, segW, segH);
        //             flag = new THREE.Mesh(geometry, material);
        //             flag2 = new THREE.Mesh(geometry2, material);
        //             flag2.position.set(1.5, 0, 0);
        //             flag3 = new THREE.Mesh(geometry3, material);
        //             flag3.position.set(3, 0, 0);
        //             flag4 = new THREE.Mesh(geometry4, material);
        //             flag4.position.set(4.5, 0, 0);
        //             flag5 = new THREE.Mesh(geometry5, material);
        //             flag5.position.set(-1.5, 0, 0);
        //             flag6 = new THREE.Mesh(geometry6, material);
        //             flag6.position.set(-3, 0, 0);
        //             flag7 = new THREE.Mesh(geometry7, material);
        //             flag7.position.set(-4.5, 0, 0);
        //             flag8 = new THREE.Mesh(geometry8, material);
        //             flag8.position.set(-6, 0, 0);
        //             let zRotation = 13;
        //             let yPosition = 13;
        //             flag.rotation.z = zRotation;
        //             flag2.rotation.z = zRotation;
        //             flag3.rotation.z = zRotation;
        //             flag4.rotation.z = zRotation;
        //             flag5.rotation.z = zRotation;
        //             flag6.rotation.z = zRotation;
        //             flag7.rotation.z = zRotation;
        //             flag8.rotation.z = zRotation;
        //             flag.position.y = yPosition;
        //             flag2.position.y = yPosition;
        //             flag3.position.y = yPosition;
        //             flag4.position.y = yPosition;
        //             flag5.position.y = yPosition;
        //             flag6.position.y = yPosition;
        //             flag7.position.y = yPosition;
        //             flag8.position.y = yPosition;
        //             flag.scale.x = .05;
        //             flag2.scale.x = .05;
        //             flag3.scale.x = .05;
        //             flag4.scale.x = .05;
        //             flag5.scale.x = .05;
        //             flag6.scale.x = .05;
        //             flag7.scale.x = .05;
        //             flag8.scale.x = .05;
        //             scene.add(flag).add(flag2).add(flag3).add(flag4).add(flag5).add(flag6).add(flag7).add(flag8);
        //             update();
        //         }
        //         const update = () => {
        //             const h = 0;
        //             // 0.2 - vertical 0.7 - swing 0.03 - speed
        //             const v = 0.25;
        //             const w = 0.6;
        //             const s = 0.02;
        //             for (let y = 0; y < segH + 1; y++) {
        //                 for (let x = 0; x < segW + 1; x++) {
        //                     const index = x + y * (segW + 1);
        //                     const vertex = flag.geometry.vertices[index];
        //                     const vertex2 = flag2.geometry.vertices[index];
        //                     const vertex3 = flag3.geometry.vertices[index];
        //                     const vertex4 = flag4.geometry.vertices[index];
        //                     const vertex5 = flag5.geometry.vertices[index];
        //                     const vertex6 = flag6.geometry.vertices[index];
        //                     const vertex7 = flag7.geometry.vertices[index];
        //                     const vertex8 = flag8.geometry.vertices[index];
        //                     const time = Date.now() * s / 50;
        //                     // individual movement ->
        //                     // flag 1
        //                     vertex.z = Math.sin(h * x + v * y - time) * w * 15 / 4;
        //                     // flag 2
        //                     vertex2.z = Math.sin(h * x + v * y - time) * w * 15 / 4.2;
        //                     // flag 3
        //                     vertex3.z = Math.sin(h * x + v * y - time) * w * 15 / 4.1;
        //                     // flag 4
        //                     vertex4.z = Math.sin(h * x + v * y - time) * w * 15 / 4;
        //                     // flag 5
        //                     vertex5.z = Math.sin(h * x + v * y - time) * w * 15 / 4.2;
        //                     // flag 6
        //                     vertex6.z = Math.sin(h * x + v * y - time) * w * 15 / 4.1;
        //                     // flag 7
        //                     vertex7.z = Math.sin(h * x + v * y - time) * w * 15 / 4;
        //                     // flag 8
        //                     vertex8.z = Math.sin(h * x + v * y - time) * w * 15 / 3.6;
        //                 }
        //             }
        //             flag.geometry.verticesNeedUpdate = true;
        //             flag2.geometry.verticesNeedUpdate = true;
        //             flag3.geometry.verticesNeedUpdate = true;
        //             flag4.geometry.verticesNeedUpdate = true;
        //             flag5.geometry.verticesNeedUpdate = true;
        //             flag6.geometry.verticesNeedUpdate = true;
        //             flag7.geometry.verticesNeedUpdate = true;
        //             flag8.geometry.verticesNeedUpdate = true;
        //             renderer.render(scene, camera);
        //             window.requestAnimationFrame(update);
        //         }
        //         init();
        //     }
        //     function wave() {
        //         default_wave();
        //         $('#renderArea').addClass('loaded-wave');
        //         function wave_done() {
        //             $('#renderArea').removeClass('loaded-wave-done');
        //         }
        //         // setTimeout(wave_done, 500);
        //         wave_done();
        //     }
        //     if ($('.scroll-content').length) {
        //         wave();
        //     }
        // }
        $('.nav-link-js').on('click', function () {
            let txt = $(this).data('href');
            $('.tab-txt-js').removeClass('active');
            $(txt).addClass('active');
        });
    }
    if (window.innerWidth > 1199) {
        if ($('.title-anim-js').length) {
            let start_pos = 'top bottom-=200px';
            if ($('#neighborhood').length) {
                start_pos = 'top bottom-=100px';
            }
            $('.title-anim-js').each(function (i, el) {
                let thisTitle = $(el),
                    trigger_el = thisTitle;
                if (thisTitle.parent('.title-anim-trigger-js').length) {
                    trigger_el = thisTitle.parent('.title-anim-trigger-js');
                }
                let title_tl = gsap.timeline({
                        scrollTrigger: {
                            trigger: trigger_el,
                            // markers: true,
                            start: start_pos,
                            once: true
                        }
                    }),
                    chars = thisTitle.find('.char');
                title_tl.from(chars, {
                    duration: 1,
                    ease: 'Expo.out',
                    autoAlpha: 0,
                    x: 60,
                    rotationY: -50,
                    stagger: {
                        each: 0.07,
                        ease: 'Expo.out'
                    }
                });
            });
        }
        if ($('.split-text-js').length) {
            $('.split-text-js').each(function (i, el) {
                let thisText = $(el),
                    this_parent = thisText.parents('.section-js'),
                    text_tl = gsap.timeline({
                        scrollTrigger: {
                            trigger: thisText,
                            start: 'top bottom-=150px',
                            once: true
                        }
                    }),
                    lines = thisText.find('.line-st');
                text_tl.from(lines, {
                    duration: .5,
                    ease: 'Expo.out',
                    autoAlpha: 0,
                    y: 80,
                    stagger: {
                        each: 0.09,
                        ease: 'Expo.out'
                    },
                    onComplete: function () {
                        if (thisText.is('.hide-line-js')) {
                            thisText.addClass('show-line')
                        }
                        if (thisText.is('.is-after-el-js')) {
                            this_parent.find('.after-el-js').addClass('after-el-show');
                        }
                    }
                });
            });
        }
        if ($('.block-anim-js').length) {
            $('.block-anim-js').each(function (i, el) {
                let thisBlock = $(el),
                    this_parent = thisBlock.parents('.section-js'),
                    trigger_val = thisBlock;
                if (thisBlock.parent('.block-anim-wrap-js').length) {
                    trigger_val = thisBlock.parent('.block-anim-wrap-js');
                }
                if (thisBlock.is('.last-block-anim-js')) {
                    trigger_val = '.prev-last-block-anim-js';
                }
                let block_tl = gsap.timeline({
                    scrollTrigger: {
                        trigger: trigger_val,
                        start: 'top bottom-=100px',
                        // markers: true,
                        once: true
                    }
                });
                block_tl.to(thisBlock, {
                    ease: 'none',
                    duration: 0.01,
                    autoAlpha: 1,
                    y: 0,
                    onComplete: function () {
                        if (thisBlock.is('.hide-line-js')) {
                            thisBlock.addClass('show-line')
                        }
                        if (this_parent.find('.banner-reverse__min-pic-js').length) {
                            gsap.to(this_parent.find('.banner-reverse__min-pic-js'), {
                                opacity: 1,
                                delay: .3,
                                scale: 1,
                                duration: .55,
                                ease: 'power2'
                            })
                        }
                        if (thisBlock.is('.is-after-el-js')) {
                            this_parent.find('.after-el-js').addClass('after-el-show');
                        }
                    }
                });
            });
        }
        if ($('.uprise-pic-wrap-js').length) {
            $('.uprise-pic-wrap-js').each(function (i, el) {
                let this_wrap = $(el),
                    this_pic = this_wrap.find('.uprise-pic-js'),
                    this_overlay = this_wrap.find('.uprise-pic__overlay-js'),
                    cleanProp_val = 'all';
                if ($(el).is('.uprise-pic-wrap-2-js')) {
                    cleanProp_val = 'none';
                }
                let uprise_tl = gsap.timeline({
                    scrollTrigger: {
                        trigger: this_wrap,
                        start: 'top bottom',
                        once: true
                    }
                });
                uprise_tl.to(this_wrap, {
                    scale: 1,
                    duration: 1.45,
                    ease: 'power3.out',
                    clearProps: cleanProp_val
                }, 'start')
                .to(this_overlay, {
                    borderWidth: 0,
                    duration: 1.2,
                    ease: 'power3.out'
                }, 'start+=0.25')
                .to(this_pic, {
                    scale: 1,
                    duration: 1.2,
                    ease: 'power3.out'
                }, 'start+=0.25');
            });
        }
        if ($('.parallax-js').length) {
            $('.parallax-js').each(function (i, el) {
                let y_value = '20%',
                    start_pos = 'top bottom',
                    endTrigger_val = $(el).parents('.section-js'),
                    trigger_el = el;
                if ($(el).parents('.parallax-wrap-js').length) {
                    endTrigger_val = $(el).parents('.parallax-wrap-js');
                    trigger_el = $(el).parents('.parallax-wrap-js');
                }
                if ($(el).is('.parallax-go-top-js')) {
                    y_value = '-20%';
                }
                if ($('#home').length) {
                    start_pos = 'top center';
                }
                let parallax_tl = gsap.timeline({
                    scrollTrigger: {
                        trigger: trigger_el,
                        endTrigger: endTrigger_val,
                        start: start_pos,
                        end: 'bottom top+=100px',
                        // markers: true,
                        scrub: .5
                    }
                });
                parallax_tl.to(el, {y: y_value, duration: 1, ease: 'none'});
            });
        }
        if ($('.hero__pic-wrap').length) {
            let parallax_hero = gsap.timeline({
                scrollTrigger: {
                    trigger: "#hero__content",
                    // endTrigger: '#hero',
                    start: 'top 30%',
                    end: 'bottom top',
                    onEnter: function () {
                        $('body').addClass('hero-anim-start');
                    },
                    // markers: true,
                    scrub: .4
                }
            });
            parallax_hero.to('.hero__building', {y: -30, rotateX: -20, duration: 1, ease: 'none'})
            .to('.hero__l-cars', {x: -30, y: -10, duration: 1, ease: 'none'}, 0)
            .to('.hero__r-cars', {x: -25, y: -15, duration: 1, ease: 'none'}, 0)
            .to('.hero_threes', {y: 15, scaleY: 1.45, duration: 1, ease: 'none'}, 0);
        }
        if ($('.float-amin-js').length) {
            $('.float-amin-js').each(function (i, el) {
                let duration_val = 2.2,
                    start_pos = 'top bottom';
                if ($(el).is('#map2')) {
                    duration_val = 1.8;
                    start_pos = 'top bottom-=100px';
                }
                let float_tl = gsap.timeline({
                    scrollTrigger: {
                        trigger: el,
                        start: start_pos,
                        once: true
                    }
                });
                float_tl.from(el, {x: '100%', duration: duration_val, ease: 'Power4.easeOut'});
            });
        }
    }
    if ($('[data-smooth-scrollto]').length) {
        if (window.innerWidth > 1199) {
            $('[data-smooth-scrollto]').each(function () {
                let element = $(this).data('smooth-scrollto');
                $(this).attr('data-smooth-value', $(element).offset().top);
            });
            $('[data-smooth-value]').on('click', function (event) {
                let pos = $(this).data('smooth-value');
                bodyScrollBar.scrollTo(0, pos, 2000);
                return false;
            });
        } else {
            $('[data-smooth-scrollto]').on('click', function (event) {
                let elementId = $(this).data('smooth-scrollto'),
                    trip = $(elementId).offset().top;
                let paddingOffset = 0;
                let idOffset = trip - paddingOffset;
                $('html,body').animate(
                    {
                        scrollTop: idOffset
                    },
                    2000
                );
                return false;
            });
        }
    }
    $('html').addClass('window-load');
});
if ($('[data-scrollto]').length) {
    $('[data-scrollto]').on('click', function (event) {
        let elementId = $(this).data('scrollto'),
            trip = $(elementId).offset().top;
        let paddingOffset = 0;
        let idOffset = trip - paddingOffset;
        $('html,body').animate(
            {
                scrollTop: idOffset
            },
            2000
        );
        return false;
    });
}
if ($('#header').length) {
    if (window.innerWidth < 1200) {
        $('#header__burger').on('click', function () {
            let el = $(this);
            if (el.hasClass('active')) {
                tl.delay(0).timeScale(1.2).reverse().eventCallback('onReverseComplete', function () {
                    $('#header__menu').hide(150, function () {
                        el.removeClass('active');
                        $('#header').removeClass('is-active');
                    });
                })
            } else {
                $('#header__menu').show(150, function () {
                    el.addClass('active');
                    $('#header').addClass('is-active');
                    tl.delay(.3).timeScale(1).restart(true);
                });
            }
        });
    }
}
;/*
    Copyright 2008-2011
        Matthias Ehmann,
        Michael Gerhaeuser,
        Carsten Miller,
        Bianca Valentin,
        Alfred Wassermann,
        Peter Wilfahrt

    
    Dual licensed under the Apache License Version 2.0, or LGPL Version 3 licenses.

    You should have received a copy of the GNU Lesser General Public License
    along with JSXCompressor.  If not, see <http://www.gnu.org/licenses/>.
    
    You should have received a copy of the Apache License along with JSXCompressor.  
    If not, see <http://www.apache.org/licenses/>.
*/
JXG = {
    exists: (function (a) {
        return function (b) {
            return !(b === a || b === null);
        }
    })()
};
JXG.decompress = function (a) {
    return unescape((new JXG.Util.Unzip(JXG.Util.Base64.decodeAsArray(a))).unzip()[0][0]);
};
JXG.Util = {};
JXG.Util.Unzip = function (Q) {
    var m = [],
        D = "",
        B = false,
        y, E = 0,
        N = [],
        q, h = new Array(32768),
        V = 0,
        I = false,
        S, F, U = [0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240, 8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248, 4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244, 12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252, 2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242, 10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250, 6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246, 14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254, 1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241, 9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249, 5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245, 13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253, 3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243, 11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251, 7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247, 15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255],
        Y = [3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0],
        P = [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 99, 99],
        J = [1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577],
        x = [0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13],
        n = [16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15],
        u = Q,
        b = 0,
        g = 0,
        Z = 1,
        a = 0,
        X = 256,
        f = [],
        j;

    function d() {
        a += 8;
        if (b < u.length) {
            return u[b++];
        } else {
            return -1;
        }
    }
    function o() {
        Z = 1;
    }
    function T() {
        var ab;
        a++;
        ab = (Z & 1);
        Z >>= 1;
        if (Z == 0) {
            Z = d();
            ab = (Z & 1);
            Z = (Z >> 1) | 128;
        }
        return ab;
    }
    function R(ab) {
        var ad = 0,
            ac = ab;
        while (ac--) {
            ad = (ad << 1) | T();
        }
        if (ab) {
            ad = U[ad] >> (8 - ab);
        }
        return ad;
    }
    function c() {
        V = 0;
    }
    function v(ab) {
        F++;
        h[V++] = ab;
        m.push(String.fromCharCode(ab));
        if (V == 32768) {
            V = 0;
        }
    }
    function l() {
        this.b0 = 0;
        this.b1 = 0;
        this.jump = null;
        this.jumppos = -1
    }
    var e = 288;
    var t = new Array(e);
    var L = new Array(32);
    var G = 0;
    var W = null;
    var p = null;
    var K = new Array(64);
    var H = new Array(64);
    var w = 0;
    var A = new Array(17);
    A[0] = 0;
    var M;
    var s;

    function i() {
        while (1) {
            if (A[w] >= s) {
                return -1;
            }
            if (M[A[w]] == w) {
                return A[w]++;
            }
            A[w]++;
        }
    }
    function C() {
        var ac = W[G];
        var ab;
        if (B) {
            document.write("<br>len:" + w + " treepos:" + G);
        }
        if (w == 17) {
            return -1;
        }
        G++;
        w++;
        ab = i();
        if (B) {
            document.write("<br>IsPat " + ab);
        }
        if (ab >= 0) {
            ac.b0 = ab;
            if (B) {
                document.write("<br>b0 " + ac.b0);
            }
        } else {
            ac.b0 = 32768;
            if (B) {
                document.write("<br>b0 " + ac.b0);
            }
            if (C()) {
                return -1;
            }
        }
        ab = i();
        if (ab >= 0) {
            ac.b1 = ab;
            if (B) {
                document.write("<br>b1 " + ac.b1);
            }
            ac.jump = null;
        } else {
            ac.b1 = 32768;
            if (B) {
                document.write("<br>b1 " + ac.b1);
            }
            ac.jump = W[G];
            ac.jumppos = G;
            if (C()) {
                return -1;
            }
        }
        w--;
        return 0;
    }
    function k(af, ad, ag, ac) {
        var ae;
        if (B) {
            document.write("currentTree " + af + " numval " + ad + " lengths " + ag + " show " + ac);
        }
        W = af;
        G = 0;
        M = ag;
        s = ad;
        for (ae = 0; ae < 17; ae++) {
            A[ae] = 0;
        }
        w = 0;
        if (C()) {
            if (B) {
                alert("invalid huffman tree\n");
            }
            return -1;
        }
        if (B) {
            document.write("<br>Tree: " + W.length);
            for (var ab = 0; ab < 32; ab++) {
                document.write("Places[" + ab + "].b0=" + W[ab].b0 + "<br>");
                document.write("Places[" + ab + "].b1=" + W[ab].b1 + "<br>");
            }
        }
        return 0;
    }
    function z(ae) {
        var ac, ad, ag = 0,
            af = ae[ag],
            ab;
        while (1) {
            ab = T();
            if (B) {
                document.write("b=" + ab);
            }
            if (ab) {
                if (!(af.b1 & 32768)) {
                    if (B) {
                        document.write("ret1");
                    }
                    return af.b1;
                }
                af = af.jump;
                ac = ae.length;
                for (ad = 0; ad < ac; ad++) {
                    if (ae[ad] === af) {
                        ag = ad;
                        break;
                    }
                }
            } else {
                if (!(af.b0 & 32768)) {
                    if (B) {
                        document.write("ret2");
                    }
                    return af.b0;
                }
                ag++;
                af = ae[ag];
            }
        }
        if (B) {
            document.write("ret3");
        }
        return -1;
    }
    function aa() {
        var af, ar, ac, ap, aq;
        do {
            af = T();
            ac = R(2);
            switch (ac) {
            case 0:
                if (B) {
                    alert("Stored\n");
                }
                break;
            case 1:
                if (B) {
                    alert("Fixed Huffman codes\n");
                }
                break;
            case 2:
                if (B) {
                    alert("Dynamic Huffman codes\n");
                }
                break;
            case 3:
                if (B) {
                    alert("Reserved block type!!\n");
                }
                break;
            default:
                if (B) {
                    alert("Unexpected value %d!\n", ac);
                }
                break
            }
            if (ac == 0) {
                var an, ab;
                o();
                an = d();
                an |= (d() << 8);
                ab = d();
                ab |= (d() << 8);
                if (((an ^ ~ab) & 65535)) {
                    document.write("BlockLen checksum mismatch\n");
                }
                while (an--) {
                    ar = d();
                    v(ar);
                }
            } else {
                if (ac == 1) {
                    var ao;
                    while (1) {
                        ao = (U[R(7)] >> 1);
                        if (ao > 23) {
                            ao = (ao << 1) | T();
                            if (ao > 199) {
                                ao -= 128;
                                ao = (ao << 1) | T();
                            } else {
                                ao -= 48;
                                if (ao > 143) {
                                    ao = ao + 136;
                                }
                            }
                        } else {
                            ao += 256;
                        }
                        if (ao < 256) {
                            v(ao);
                        } else {
                            if (ao == 256) {
                                break;
                            } else {
                                var aq, ak;
                                ao -= 256 + 1;
                                aq = R(P[ao]) + Y[ao];
                                ao = U[R(5)] >> 3;
                                if (x[ao] > 8) {
                                    ak = R(8);
                                    ak |= (R(x[ao] - 8) << 8);
                                } else {
                                    ak = R(x[ao]);
                                }
                                ak += J[ao];
                                for (ao = 0; ao < aq; ao++) {
                                    var ar = h[(V - ak) & 32767];
                                    v(ar);
                                }
                            }
                        }
                    }
                } else {
                    if (ac == 2) {
                        var ao, al, ad, ai, aj;
                        var ah = new Array(288 + 32);
                        ad = 257 + R(5);
                        ai = 1 + R(5);
                        aj = 4 + R(4);
                        for (ao = 0; ao < 19; ao++) {
                            ah[ao] = 0;
                        }
                        for (ao = 0; ao < aj; ao++) {
                            ah[n[ao]] = R(3);
                        }
                        aq = L.length;
                        for (ap = 0; ap < aq; ap++) {
                            L[ap] = new l();
                        }
                        if (k(L, 19, ah, 0)) {
                            c();
                            return 1;
                        }
                        if (B) {
                            document.write("<br>distanceTree");
                            for (var at = 0; at < L.length; at++) {
                                document.write("<br>" + L[at].b0 + " " + L[at].b1 + " " + L[at].jump + " " + L[at].jumppos);
                            }
                        }
                        al = ad + ai;
                        ap = 0;
                        var ae = -1;
                        if (B) {
                            document.write("<br>n=" + al + " bits: " + a + "<br>");
                        }
                        while (ap < al) {
                            ae++;
                            ao = z(L);
                            if (B) {
                                document.write("<br>" + ae + " i:" + ap + " decode: " + ao + "    bits " + a + "<br>");
                            }
                            if (ao < 16) {
                                ah[ap++] = ao;
                            } else {
                                if (ao == 16) {
                                    var am;
                                    ao = 3 + R(2);
                                    if (ap + ao > al) {
                                        c();
                                        return 1;
                                    }
                                    am = ap ? ah[ap - 1] : 0;
                                    while (ao--) {
                                        ah[ap++] = am;
                                    }
                                } else {
                                    if (ao == 17) {
                                        ao = 3 + R(3);
                                    } else {
                                        ao = 11 + R(7);
                                    }
                                    if (ap + ao > al) {
                                        c();
                                        return 1;
                                    }
                                    while (ao--) {
                                        ah[ap++] = 0;
                                    }
                                }
                            }
                        }
                        aq = t.length;
                        for (ap = 0; ap < aq; ap++) {
                            t[ap] = new l();
                        }
                        if (k(t, ad, ah, 0)) {
                            c();
                            return 1;
                        }
                        aq = t.length;
                        for (ap = 0; ap < aq; ap++) {
                            L[ap] = new l();
                        }
                        var ag = new Array();
                        for (ap = ad; ap < ah.length; ap++) {
                            ag[ap - ad] = ah[ap];
                        }
                        if (k(L, ai, ag, 0)) {
                            c();
                            return 1;
                        }
                        if (B) {
                            document.write("<br>literalTree");
                        }
                        while (1) {
                            ao = z(t);
                            if (ao >= 256) {
                                var aq, ak;
                                ao -= 256;
                                if (ao == 0) {
                                    break;
                                }
                                ao--;
                                aq = R(P[ao]) + Y[ao];
                                ao = z(L);
                                if (x[ao] > 8) {
                                    ak = R(8);
                                    ak |= (R(x[ao] - 8) << 8);
                                } else {
                                    ak = R(x[ao]);
                                }
                                ak += J[ao];
                                while (aq--) {
                                    var ar = h[(V - ak) & 32767];
                                    v(ar);
                                }
                            } else {
                                v(ao);
                            }
                        }
                    }
                }
            }
        } while (!af);
        c();
        o();
        return 0;
    }
    JXG.Util.Unzip.prototype.unzipFile = function (ab) {
        var ac;
        this.unzip();
        for (ac = 0; ac < N.length; ac++) {
            if (N[ac][1] == ab) {
                return N[ac][0];
            }
        }
    };
    JXG.Util.Unzip.prototype.unzip = function () {
        if (B) {
            alert(u);
        }
        r();
        return N;
    };

    function r() {
        if (B) {
            alert("NEXTFILE");
        }
        m = [];
        var af = [];
        I = false;
        af[0] = d();
        af[1] = d();
        if (B) {
            alert("type: " + af[0] + " " + af[1]);
        }
        if (af[0] == parseInt("78", 16) && af[1] == parseInt("da", 16)) {
            if (B) {
                alert("GEONExT-GZIP");
            }
            aa();
            if (B) {
                alert(m.join(""));
            }
            N[E] = new Array(2);
            N[E][0] = m.join("");
            N[E][1] = "geonext.gxt";
            E++;
        }
        if (af[0] == parseInt("1f", 16) && af[1] == parseInt("8b", 16)) {
            if (B) {
                alert("GZIP")
            }
            O();
            if (B) {
                alert(m.join(""));
            }
            N[E] = new Array(2);
            N[E][0] = m.join("");
            N[E][1] = "file";
            E++;
        }
        if (af[0] == parseInt("50", 16) && af[1] == parseInt("4b", 16)) {
            I = true;
            af[2] = d();
            af[3] = d();
            if (af[2] == parseInt("3", 16) && af[3] == parseInt("4", 16)) {
                af[0] = d();
                af[1] = d();
                if (B) {
                    alert("ZIP-Version: " + af[1] + " " + af[0] / 10 + "." + af[0] % 10);
                }
                y = d();
                y |= (d() << 8);
                if (B) {
                    alert("gpflags: " + y);
                }
                var ab = d();
                ab |= (d() << 8);
                if (B) {
                    alert("method: " + ab);
                }
                d();
                d();
                d();
                d();
                var ag = d();
                ag |= (d() << 8);
                ag |= (d() << 16);
                ag |= (d() << 24);
                var ae = d();
                ae |= (d() << 8);
                ae |= (d() << 16);
                ae |= (d() << 24);
                var aj = d();
                aj |= (d() << 8);
                aj |= (d() << 16);
                aj |= (d() << 24);
                if (B) {
                    alert("local CRC: " + ag + "\nlocal Size: " + aj + "\nlocal CompSize: " + ae);
                }
                var ac = d();
                ac |= (d() << 8);
                var ai = d();
                ai |= (d() << 8);
                if (B) {
                    alert("filelen " + ac);
                }
                ad = 0;
                f = [];
                while (ac--) {
                    var ah = d();
                    if (ah == "/" | ah == ":") {
                        ad = 0;
                    } else {
                        if (ad < X - 1) {
                            f[ad++] = String.fromCharCode(ah);
                        }
                    }
                }
                if (B) {
                    alert("nameBuf: " + f);
                }
                if (!j) {
                    j = f;
                }
                var ad = 0;
                while (ad < ai) {
                    ah = d();
                    ad++;
                }
                S = 4294967295;
                F = 0;
                if (aj = 0 && fileOut.charAt(j.length - 1) == "/") {
                    if (B) {
                        alert("skipdir");
                    }
                }
                if (ab == 8) {
                    aa();
                    if (B) {
                        alert(m.join(""));
                    }
                    N[E] = new Array(2);
                    N[E][0] = m.join("");
                    N[E][1] = f.join("");
                    E++;
                }
                O();
            }
        }
    }
    function O() {
        var ag, ad = [],
            ae, ac, af, ab, ah;
        if ((y & 8)) {
            ad[0] = d();
            ad[1] = d();
            ad[2] = d();
            ad[3] = d();
            if (ad[0] == parseInt("50", 16) && ad[1] == parseInt("4b", 16) && ad[2] == parseInt("07", 16) && ad[3] == parseInt("08", 16)) {
                ag = d();
                ag |= (d() << 8);
                ag |= (d() << 16);
                ag |= (d() << 24);
            } else {
                ag = ad[0] | (ad[1] << 8) | (ad[2] << 16) | (ad[3] << 24);
            }
            ae = d();
            ae |= (d() << 8);
            ae |= (d() << 16);
            ae |= (d() << 24);
            ac = d();
            ac |= (d() << 8);
            ac |= (d() << 16);
            ac |= (d() << 24);
            if (B) {
                alert("CRC:");
            }
        }
        if (I) {
            r();
        }
        ad[0] = d();
        if (ad[0] != 8) {
            if (B) {
                alert("Unknown compression method!");
            }
            return 0;
        }
        y = d();
        if (B) {
            if ((y & ~ (parseInt("1f", 16)))) {
                alert("Unknown flags set!");
            }
        }
        d();
        d();
        d();
        d();
        d();
        af = d();
        if ((y & 4)) {
            ad[0] = d();
            ad[2] = d();
            w = ad[0] + 256 * ad[1];
            if (B) {
                alert("Extra field size: " + w)
            }
            for (ab = 0; ab < w; ab++) {
                d();
            }
        }
        if ((y & 8)) {
            ab = 0;
            f = [];
            while (ah = d()) {
                if (ah == "7" || ah == ":") {
                    ab = 0;
                }
                if (ab < X - 1) {
                    f[ab++] = ah;
                }
            }
            if (B) {
                alert("original file name: " + f);
            }
        }
        if ((y & 16)) {
            while (ah = d()) {}
        }
        if ((y & 2)) {
            d();
            d();
        }
        aa();
        ag = d();
        ag |= (d() << 8);
        ag |= (d() << 16);
        ag |= (d() << 24);
        ac = d();
        ac |= (d() << 8);
        ac |= (d() << 16);
        ac |= (d() << 24);
        if (I) {
            r();
        }
    }
};
JXG.Util.Base64 = {
    _keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
    encode: function (c) {
        var a = [],
            k, h, f, j, g, e, d, b = 0;
        c = JXG.Util.Base64._utf8_encode(c);
        while (b < c.length) {
            k = c.charCodeAt(b++);
            h = c.charCodeAt(b++);
            f = c.charCodeAt(b++);
            j = k >> 2;
            g = ((k & 3) << 4) | (h >> 4);
            e = ((h & 15) << 2) | (f >> 6);
            d = f & 63;
            if (isNaN(h)) {
                e = d = 64;
            } else {
                if (isNaN(f)) {
                    d = 64;
                }
            }
            a.push([this._keyStr.charAt(j), this._keyStr.charAt(g), this._keyStr.charAt(e), this._keyStr.charAt(d)].join(""));
        }
        return a.join("");
    },
    decode: function (d, c) {
        var a = [],
            l, j, g, k, h, f, e, b = 0;
        d = d.replace(/[^A-Za-z0-9\+\/\=]/g, "");
        while (b < d.length) {
            k = this._keyStr.indexOf(d.charAt(b++));
            h = this._keyStr.indexOf(d.charAt(b++));
            f = this._keyStr.indexOf(d.charAt(b++));
            e = this._keyStr.indexOf(d.charAt(b++));
            l = (k << 2) | (h >> 4);
            j = ((h & 15) << 4) | (f >> 2);
            g = ((f & 3) << 6) | e;
            a.push(String.fromCharCode(l));
            if (f != 64) {
                a.push(String.fromCharCode(j));
            }
            if (e != 64) {
                a.push(String.fromCharCode(g));
            }
        }
        a = a.join("");
        if (c) {
            a = JXG.Util.Base64._utf8_decode(a);
        }
        return a;
    },
    _utf8_encode: function (b) {
        b = b.replace(/\r\n/g, "\n");
        var a = "";
        for (var e = 0; e < b.length; e++) {
            var d = b.charCodeAt(e);
            if (d < 128) {
                a += String.fromCharCode(d);
            } else {
                if ((d > 127) && (d < 2048)) {
                    a += String.fromCharCode((d >> 6) | 192);
                    a += String.fromCharCode((d & 63) | 128);
                } else {
                    a += String.fromCharCode((d >> 12) | 224);
                    a += String.fromCharCode(((d >> 6) & 63) | 128);
                    a += String.fromCharCode((d & 63) | 128);
                }
            }
        }
        return a;
    },
    _utf8_decode: function (a) {
        var d = [],
            f = 0,
            g = 0,
            e = 0,
            b = 0;
        while (f < a.length) {
            g = a.charCodeAt(f);
            if (g < 128) {
                d.push(String.fromCharCode(g));
                f++;
            } else {
                if ((g > 191) && (g < 224)) {
                    e = a.charCodeAt(f + 1);
                    d.push(String.fromCharCode(((g & 31) << 6) | (e & 63)));
                    f += 2;
                } else {
                    e = a.charCodeAt(f + 1);
                    b = a.charCodeAt(f + 2);
                    d.push(String.fromCharCode(((g & 15) << 12) | ((e & 63) << 6) | (b & 63)));
                    f += 3;
                }
            }
        }
        return d.join("");
    },
    _destrip: function (f, d) {
        var b = [],
            e, c, a = [];
        if (d == null) {
            d = 76;
        }
        f.replace(/ /g, "");
        e = f.length / d;
        for (c = 0; c < e; c++) {
            b[c] = f.substr(c * d, d);
        }
        if (e != f.length / d) {
            b[b.length] = f.substr(e * d, f.length - (e * d));
        }
        for (c = 0; c < b.length; c++) {
            a.push(b[c]);
        }
        return a.join("\n");
    },
    decodeAsArray: function (b) {
        var d = this.decode(b),
            a = [],
            c;
        for (c = 0; c < d.length; c++) {
            a[c] = d.charCodeAt(c);
        }
        return a;
    },
    decodeGEONExT: function (a) {
        return decodeAsArray(destrip(a), false);
    }
};
JXG.Util.asciiCharCodeAt = function (b, a) {
    var d = b.charCodeAt(a);
    if (d > 255) {
        switch (d) {
        case 8364:
            d = 128;
            break;
        case 8218:
            d = 130;
            break;
        case 402:
            d = 131;
            break;
        case 8222:
            d = 132;
            break;
        case 8230:
            d = 133;
            break;
        case 8224:
            d = 134;
            break;
        case 8225:
            d = 135;
            break;
        case 710:
            d = 136;
            break;
        case 8240:
            d = 137;
            break;
        case 352:
            d = 138;
            break;
        case 8249:
            d = 139;
            break;
        case 338:
            d = 140;
            break;
        case 381:
            d = 142;
            break;
        case 8216:
            d = 145;
            break;
        case 8217:
            d = 146;
            break;
        case 8220:
            d = 147;
            break;
        case 8221:
            d = 148;
            break;
        case 8226:
            d = 149;
            break;
        case 8211:
            d = 150;
            break;
        case 8212:
            d = 151;
            break;
        case 732:
            d = 152;
            break;
        case 8482:
            d = 153;
            break;
        case 353:
            d = 154;
            break;
        case 8250:
            d = 155;
            break;
        case 339:
            d = 156;
            break;
        case 382:
            d = 158;
            break;
        case 376:
            d = 159;
            break;
        default:
            break;
        }
    }
    return d;
};
JXG.Util.utf8Decode = function (a) {
    var d = [];
    var f = 0;
    var h = 0,
        g = 0,
        e = 0,
        b;
    if (!JXG.exists(a)) {
        return "";
    }
    while (f < a.length) {
        h = a.charCodeAt(f);
        if (h < 128) {
            d.push(String.fromCharCode(h));
            f++;
        } else {
            if ((h > 191) && (h < 224)) {
                e = a.charCodeAt(f + 1);
                d.push(String.fromCharCode(((h & 31) << 6) | (e & 63)));
                f += 2;
            } else {
                e = a.charCodeAt(f + 1);
                b = a.charCodeAt(f + 2);
                d.push(String.fromCharCode(((h & 15) << 12) | ((e & 63) << 6) | (b & 63)));
                f += 3;
            }
        }
    }
    return d.join("");
};
JXG.Util.genUUID = function () {
    var e = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz".split(""),
        c = new Array(36),
        b = 0,
        d;
    for (var a = 0; a < 36; a++) {
        if (a == 8 || a == 13 || a == 18 || a == 23) {
            c[a] = "-";
        } else {
            if (a == 14) {
                c[a] = "4";
            } else {
                if (b <= 2) {
                    b = 33554432 + (Math.random() * 16777216) | 0;
                }
                d = b & 15;
                b = b >> 4;
                c[a] = e[(a == 19) ? (d & 3) | 8 : d];
            }
        }
    }
    return c.join("");
};;jQuery(document).ready(function(){
    rs = {};

    if(jsonMapData != undefined && jsonMapData != '')
    {
        var data = eval(JXG.decompress(jsonMapData));

        for (var obj in data) {
            rs[data[obj].unitNumber] = data[obj];
        }
    }
});;
/**
 @file           :   jquery.oe.ajaxrequest.js
 @plugin         :   jAjaxCall
 @description    :   Make request to server asynchronous and manipulate as per server response
 @dependent      :   Plugin is not dependent on any other plugin.
 @caution        :   Pass send_data param in serializeArray format only.

 How to make a call with plugin.
 jQuery.jAjaxCall({
    xhr_area    :   'RequestedAreaName',
    xhr_module  :   'ModuleName',
    xhr_action  :   'ActionName',
    send_data    :   [{name: 'page', value: 7},{name: 'view', value:'list'}],
    xhr_url     :   'URL to send request',
});
 **/
;if(typeof Loading == 'undefined'){Loading=false}
(function() {
    (function($) {
        jQuery._jAjaxCall = function(options) {
            var _this = this;

            _this.loading = false;

            this.init = function(options){
                if(_this.loading === false && Loading === false)
                {
                    _this._o = jQuery.extend({}, jQuery._jAjaxCall.defaultOptions, options);

                    _this.XHR       =   'XHR';
                    _this.XHR_URL   =   'URL';
                    _this.XHR_AJAX  =   'AJAX';
                    _this.XHR_AREA  =   'AREA';
                    _this.XHR_MODULE=   'MODULE';
                    _this.XHR_ACTION=   'ACTION';
                    _this.XHR_R_ASSIGN  =   'ASSIGN';
                    _this.XHR_R_APPEND  =   'APPEND';
                    _this.XHR_R_PREPEND =   'PREPEND';
                    _this.XHR_R_SCRIPT  =   'SCRIPT';
                    _this.XHR_R_REDIRECT=   'REDIRECT';
                    _this.XHR_R_ERROR   =   'ERROR';
                    _this.XHR_R_SUCCESS =   'SUCCESS';

                    _this.jAjaxRequest();

                    return _this;
                }
            };
            this.jAjaxRequest = function(){
                _this.send_data = _this._o.send_data;
                _this.send_data.push({name: _this.XHR+'['+_this.XHR_AJAX+']', value: true});
                _this.send_data.push({name: _this.XHR+'['+_this.XHR_URL+']', value: window.location.href});
                _this.send_data.push({name: _this.XHR+'['+_this.XHR_AREA+']', value: _this._o.xhr_area});
                _this.send_data.push({name: _this.XHR+'['+_this.XHR_MODULE+']', value: _this._o.xhr_module});
                _this.send_data.push({name: _this.XHR+'['+_this.XHR_ACTION+']', value: _this._o.xhr_action});
                jQuery.ajax({
                    url         :   _this._o.xhr_url,
                    method      :   _this._o.xhr_method,
                    type        :   _this._o.xhr_method,
                    /*contentType :   _this._o.xhr_content_type,*/
                    dataType    :   _this._o.xhr_data_type,
                    data        :   _this.send_data,
                    timeout     :   _this._o.xhr_timeout,
                    crossDomain :   _this._o.xhr_cross_domain,
                    cache       :   _this._o.xhr_cache,
                    xhrFields: {
                        withCredentials: _this._o.xhr_with_credentials
                    },
                    beforeSend  :   function(jqXHR, settings){
                        _this.loading = true;

                        _this._o.callbefore_send(jqXHR, settings);
                    },
                    success     :   function(data, textStatus, jqXHR){
                        if(_this._o.skip_pr === false){_this.ProcessResponse(data);}
                        _this._o.callback_on_success(data, textStatus, jqXHR);
                    },
                    error       :   function(jqXHR, textStatus, errorThrown) {
                        _this._o.callback_on_error(jqXHR, textStatus, errorThrown);
                    },
                    complete    :   function(jqXHR, textStatus){
                        if(textStatus == 'timeout'){_this._o.fn_alert('error','Something went wrong and your request has been timed out. Please try again or <a data-reload="cc" href="javascript:void(0);">reload</a>.');}
                        else if(textStatus === 'parsererror'){_this._o.fn_alert('error','Something went wrong and request has been terminated. Please try again or <a data-reload="cc" href="javascript:void(0);">reload</a>.');}
                        _this._o.callback_on_complete(jqXHR, textStatus);
                        _this.loading = false;
                    },
                    statusCode  :   {
                        404:function(){
                            _this._o.fn_alert('error','404 : Requested page not found.');
                        }
                    }/*,
                     headers     :   {}*/

                });

                /*else{_this.fn_alert('warning','Please wait. Your request is in process.');}*/
            };
            this.ProcessResponse = function(data){
                if(data[_this.XHR_R_ASSIGN])
                {
                    jQuery.each(data[_this.XHR_R_ASSIGN], function(k,rd){
                        jQuery(rd[0]).html(rd[1]);
                    });
                }
                if(data[_this.XHR_R_APPEND])
                {
                    jQuery.each(data[_this.XHR_R_APPEND], function(k,rd){
                        jQuery(rd[0]).append(rd[1]);
                    });
                }
                if(data[_this.XHR_R_PREPEND])
                {
                    jQuery.each(data[_this.XHR_R_PREPEND], function(k,rd){
                        jQuery(rd[0]).prepend(rd[1]);
                    });
                }
                if(data[_this.XHR_R_SCRIPT])
                {
                    jQuery.each(data[_this.XHR_R_SCRIPT], function(k,rd){
                        eval(rd);
                    });
                }
                if(data[_this.XHR_R_ERROR])
                {
                    jQuery.each(data[_this.XHR_R_ERROR], function(k,rd){
                        _this._o.fn_alert('error',rd);
                    });
                }
                if(data[_this.XHR_R_SUCCESS])
                {
                    jQuery.each(data[_this.XHR_R_SUCCESS], function(k,rd){
                        _this._o.fn_alert('success',rd);
                    });
                }
                if(data[_this.XHR_R_REDIRECT])
                {
                    jQuery.each(data[_this.XHR_R_REDIRECT], function(k,rd){
                        if(rd[0])
                        {
                            if(rd[1] && isNaN(rd[1]) === false)
                            {
                                setTimeout(function(){
                                    window.location = rd[0];
                                },rd[1]);
                            }
                            else
                            {
                                window.location = rd[0];
                            }
                        }
                    });
                }
            };
        };
        jQuery._jAjaxCall.defaultOptions = {
            send_data   :   {},
            xhr_area    :   "",
            xhr_module  :   "",
            xhr_action  :   "",
            xhr_url     :   "",
            xhr_method  :   "POST",/*POST, GET, PUT*/
            xhr_timeout :   (1000*5),
            xhr_cache   :   false,
            xhr_data_type   :   "json", /*xml, json, script, html*/
            xhr_cross_domain:   true,
            xhr_with_credentials: true,
            /*xhr_content_type:   "application/x-www-form-urlencoded+; charset=UTF-8",*//*application/x-www-form-urlencoded | multipart/form-data | text/plain */
            skip_pr     :   false,
            callbefore_send     :   function(jqXHR, settings){},
            callback_on_success :   function(data, textStatus, jqXHR){},
            callback_on_error   :   function(jqXHR, textStatus, errorThrown){},
            callback_on_complete:   function(jqXHR, textStatus){},

            /**
             Show alert as user define
             @mt : alert, success, error, warning, info, confirm
             @m : Content of message. Will be plain text.
             **/
            fn_alert           :   function(mt, m){alert(m);},
        };
        jQuery.jAjaxCall = function(options,ajax_id){
            var element = jQuery('body');
            if(element.length > 0){
                if (!element.data(ajax_id) || element.data(ajax_id) == null || element.data(ajax_id) == ''){
                    element.data(ajax_id, new jQuery._jAjaxCall(options));
                }
                return element.data(ajax_id).init(options);
            }
        };
        jQuery.fn.jAjaxCall = function(){};
        return void 0;
    })(jQuery);
}).call(this);;window.onload = function(){
    MFS.init();
};/*!
 * Datepicker for Bootstrap v1.6.4 (https://github.com/eternicode/bootstrap-datepicker)
 *
 * Copyright 2012 Stefan Petre
 * Improvements by Andrew Rowls
 * Licensed under the Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0)
 */
!function(a){"function"==typeof define&&define.amd?define(["jquery"],a):a("object"==typeof exports?require("jquery"):jQuery)}(function(a,b){function c(){return new Date(Date.UTC.apply(Date,arguments))}function d(){var a=new Date;return c(a.getFullYear(),a.getMonth(),a.getDate())}function e(a,b){return a.getUTCFullYear()===b.getUTCFullYear()&&a.getUTCMonth()===b.getUTCMonth()&&a.getUTCDate()===b.getUTCDate()}function f(a){return function(){return this[a].apply(this,arguments)}}function g(a){return a&&!isNaN(a.getTime())}function h(b,c){function d(a,b){return b.toLowerCase()}var e,f=a(b).data(),g={},h=new RegExp("^"+c.toLowerCase()+"([A-Z])");c=new RegExp("^"+c.toLowerCase());for(var i in f)c.test(i)&&(e=i.replace(h,d),g[e]=f[i]);return g}function i(b){var c={};if(q[b]||(b=b.split("-")[0],q[b])){var d=q[b];return a.each(p,function(a,b){b in d&&(c[b]=d[b])}),c}}var j=function(){var b={get:function(a){return this.slice(a)[0]},contains:function(a){for(var b=a&&a.valueOf(),c=0,d=this.length;d>c;c++)if(this[c].valueOf()===b)return c;return-1},remove:function(a){this.splice(a,1)},replace:function(b){b&&(a.isArray(b)||(b=[b]),this.clear(),this.push.apply(this,b))},clear:function(){this.length=0},copy:function(){var a=new j;return a.replace(this),a}};return function(){var c=[];return c.push.apply(c,arguments),a.extend(c,b),c}}(),k=function(b,c){a(b).data("datepicker",this),this._process_options(c),this.dates=new j,this.viewDate=this.o.defaultViewDate,this.focusDate=null,this.element=a(b),this.isInput=this.element.is("input"),this.inputField=this.isInput?this.element:this.element.find("input"),this.component=this.element.hasClass("date")?this.element.find(".add-on, .input-group-addon, .btn"):!1,this.hasInput=this.component&&this.inputField.length,this.component&&0===this.component.length&&(this.component=!1),this.isInline=!this.component&&this.element.is("div"),this.picker=a(r.template),this._check_template(this.o.templates.leftArrow)&&this.picker.find(".prev").html(this.o.templates.leftArrow),this._check_template(this.o.templates.rightArrow)&&this.picker.find(".next").html(this.o.templates.rightArrow),this._buildEvents(),this._attachEvents(),this.isInline?this.picker.addClass("datepicker-inline").appendTo(this.element):this.picker.addClass("datepicker-dropdown dropdown-menu"),this.o.rtl&&this.picker.addClass("datepicker-rtl"),this.viewMode=this.o.startView,this.o.calendarWeeks&&this.picker.find("thead .datepicker-title, tfoot .today, tfoot .clear").attr("colspan",function(a,b){return parseInt(b)+1}),this._allow_update=!1,this.setStartDate(this._o.startDate),this.setEndDate(this._o.endDate),this.setDaysOfWeekDisabled(this.o.daysOfWeekDisabled),this.setDaysOfWeekHighlighted(this.o.daysOfWeekHighlighted),this.setDatesDisabled(this.o.datesDisabled),this.fillDow(),this.fillMonths(),this._allow_update=!0,this.update(),this.showMode(),this.isInline&&this.show()};k.prototype={constructor:k,_resolveViewName:function(a,c){return 0===a||"days"===a||"month"===a?0:1===a||"months"===a||"year"===a?1:2===a||"years"===a||"decade"===a?2:3===a||"decades"===a||"century"===a?3:4===a||"centuries"===a||"millennium"===a?4:c===b?!1:c},_check_template:function(c){try{if(c===b||""===c)return!1;if((c.match(/[<>]/g)||[]).length<=0)return!0;var d=a(c);return d.length>0}catch(e){return!1}},_process_options:function(b){this._o=a.extend({},this._o,b);var e=this.o=a.extend({},this._o),f=e.language;q[f]||(f=f.split("-")[0],q[f]||(f=o.language)),e.language=f,e.startView=this._resolveViewName(e.startView,0),e.minViewMode=this._resolveViewName(e.minViewMode,0),e.maxViewMode=this._resolveViewName(e.maxViewMode,4),e.startView=Math.min(e.startView,e.maxViewMode),e.startView=Math.max(e.startView,e.minViewMode),e.multidate!==!0&&(e.multidate=Number(e.multidate)||!1,e.multidate!==!1&&(e.multidate=Math.max(0,e.multidate))),e.multidateSeparator=String(e.multidateSeparator),e.weekStart%=7,e.weekEnd=(e.weekStart+6)%7;var g=r.parseFormat(e.format);e.startDate!==-(1/0)&&(e.startDate?e.startDate instanceof Date?e.startDate=this._local_to_utc(this._zero_time(e.startDate)):e.startDate=r.parseDate(e.startDate,g,e.language,e.assumeNearbyYear):e.startDate=-(1/0)),e.endDate!==1/0&&(e.endDate?e.endDate instanceof Date?e.endDate=this._local_to_utc(this._zero_time(e.endDate)):e.endDate=r.parseDate(e.endDate,g,e.language,e.assumeNearbyYear):e.endDate=1/0),e.daysOfWeekDisabled=e.daysOfWeekDisabled||[],a.isArray(e.daysOfWeekDisabled)||(e.daysOfWeekDisabled=e.daysOfWeekDisabled.split(/[,\s]*/)),e.daysOfWeekDisabled=a.map(e.daysOfWeekDisabled,function(a){return parseInt(a,10)}),e.daysOfWeekHighlighted=e.daysOfWeekHighlighted||[],a.isArray(e.daysOfWeekHighlighted)||(e.daysOfWeekHighlighted=e.daysOfWeekHighlighted.split(/[,\s]*/)),e.daysOfWeekHighlighted=a.map(e.daysOfWeekHighlighted,function(a){return parseInt(a,10)}),e.datesDisabled=e.datesDisabled||[],a.isArray(e.datesDisabled)||(e.datesDisabled=[e.datesDisabled]),e.datesDisabled=a.map(e.datesDisabled,function(a){return r.parseDate(a,g,e.language,e.assumeNearbyYear)});var h=String(e.orientation).toLowerCase().split(/\s+/g),i=e.orientation.toLowerCase();if(h=a.grep(h,function(a){return/^auto|left|right|top|bottom$/.test(a)}),e.orientation={x:"auto",y:"auto"},i&&"auto"!==i)if(1===h.length)switch(h[0]){case"top":case"bottom":e.orientation.y=h[0];break;case"left":case"right":e.orientation.x=h[0]}else i=a.grep(h,function(a){return/^left|right$/.test(a)}),e.orientation.x=i[0]||"auto",i=a.grep(h,function(a){return/^top|bottom$/.test(a)}),e.orientation.y=i[0]||"auto";else;if(e.defaultViewDate){var j=e.defaultViewDate.year||(new Date).getFullYear(),k=e.defaultViewDate.month||0,l=e.defaultViewDate.day||1;e.defaultViewDate=c(j,k,l)}else e.defaultViewDate=d()},_events:[],_secondaryEvents:[],_applyEvents:function(a){for(var c,d,e,f=0;f<a.length;f++)c=a[f][0],2===a[f].length?(d=b,e=a[f][1]):3===a[f].length&&(d=a[f][1],e=a[f][2]),c.on(e,d)},_unapplyEvents:function(a){for(var c,d,e,f=0;f<a.length;f++)c=a[f][0],2===a[f].length?(e=b,d=a[f][1]):3===a[f].length&&(e=a[f][1],d=a[f][2]),c.off(d,e)},_buildEvents:function(){var b={keyup:a.proxy(function(b){-1===a.inArray(b.keyCode,[27,37,39,38,40,32,13,9])&&this.update()},this),keydown:a.proxy(this.keydown,this),paste:a.proxy(this.paste,this)};this.o.showOnFocus===!0&&(b.focus=a.proxy(this.show,this)),this.isInput?this._events=[[this.element,b]]:this.component&&this.hasInput?this._events=[[this.inputField,b],[this.component,{click:a.proxy(this.show,this)}]]:this._events=[[this.element,{click:a.proxy(this.show,this),keydown:a.proxy(this.keydown,this)}]],this._events.push([this.element,"*",{blur:a.proxy(function(a){this._focused_from=a.target},this)}],[this.element,{blur:a.proxy(function(a){this._focused_from=a.target},this)}]),this.o.immediateUpdates&&this._events.push([this.element,{"changeYear changeMonth":a.proxy(function(a){this.update(a.date)},this)}]),this._secondaryEvents=[[this.picker,{click:a.proxy(this.click,this)}],[a(window),{resize:a.proxy(this.place,this)}],[a(document),{mousedown:a.proxy(function(a){this.element.is(a.target)||this.element.find(a.target).length||this.picker.is(a.target)||this.picker.find(a.target).length||this.isInline||this.hide()},this)}]]},_attachEvents:function(){this._detachEvents(),this._applyEvents(this._events)},_detachEvents:function(){this._unapplyEvents(this._events)},_attachSecondaryEvents:function(){this._detachSecondaryEvents(),this._applyEvents(this._secondaryEvents)},_detachSecondaryEvents:function(){this._unapplyEvents(this._secondaryEvents)},_trigger:function(b,c){var d=c||this.dates.get(-1),e=this._utc_to_local(d);this.element.trigger({type:b,date:e,dates:a.map(this.dates,this._utc_to_local),format:a.proxy(function(a,b){0===arguments.length?(a=this.dates.length-1,b=this.o.format):"string"==typeof a&&(b=a,a=this.dates.length-1),b=b||this.o.format;var c=this.dates.get(a);return r.formatDate(c,b,this.o.language)},this)})},show:function(){return this.inputField.prop("disabled")||this.inputField.prop("readonly")&&this.o.enableOnReadonly===!1?void 0:(this.isInline||this.picker.appendTo(this.o.container),this.place(),this.picker.show(),this._attachSecondaryEvents(),this._trigger("show"),(window.navigator.msMaxTouchPoints||"ontouchstart"in document)&&this.o.disableTouchKeyboard&&a(this.element).blur(),this)},hide:function(){return this.isInline||!this.picker.is(":visible")?this:(this.focusDate=null,this.picker.hide().detach(),this._detachSecondaryEvents(),this.viewMode=this.o.startView,this.showMode(),this.o.forceParse&&this.inputField.val()&&this.setValue(),this._trigger("hide"),this)},destroy:function(){return this.hide(),this._detachEvents(),this._detachSecondaryEvents(),this.picker.remove(),delete this.element.data().datepicker,this.isInput||delete this.element.data().date,this},paste:function(b){var c;if(b.originalEvent.clipboardData&&b.originalEvent.clipboardData.types&&-1!==a.inArray("text/plain",b.originalEvent.clipboardData.types))c=b.originalEvent.clipboardData.getData("text/plain");else{if(!window.clipboardData)return;c=window.clipboardData.getData("Text")}this.setDate(c),this.update(),b.preventDefault()},_utc_to_local:function(a){return a&&new Date(a.getTime()+6e4*a.getTimezoneOffset())},_local_to_utc:function(a){return a&&new Date(a.getTime()-6e4*a.getTimezoneOffset())},_zero_time:function(a){return a&&new Date(a.getFullYear(),a.getMonth(),a.getDate())},_zero_utc_time:function(a){return a&&new Date(Date.UTC(a.getUTCFullYear(),a.getUTCMonth(),a.getUTCDate()))},getDates:function(){return a.map(this.dates,this._utc_to_local)},getUTCDates:function(){return a.map(this.dates,function(a){return new Date(a)})},getDate:function(){return this._utc_to_local(this.getUTCDate())},getUTCDate:function(){var a=this.dates.get(-1);return"undefined"!=typeof a?new Date(a):null},clearDates:function(){this.inputField&&this.inputField.val(""),this.update(),this._trigger("changeDate"),this.o.autoclose&&this.hide()},setDates:function(){var b=a.isArray(arguments[0])?arguments[0]:arguments;return this.update.apply(this,b),this._trigger("changeDate"),this.setValue(),this},setUTCDates:function(){var b=a.isArray(arguments[0])?arguments[0]:arguments;return this.update.apply(this,a.map(b,this._utc_to_local)),this._trigger("changeDate"),this.setValue(),this},setDate:f("setDates"),setUTCDate:f("setUTCDates"),remove:f("destroy"),setValue:function(){var a=this.getFormattedDate();return this.inputField.val(a),this},getFormattedDate:function(c){c===b&&(c=this.o.format);var d=this.o.language;return a.map(this.dates,function(a){return r.formatDate(a,c,d)}).join(this.o.multidateSeparator)},getStartDate:function(){return this.o.startDate},setStartDate:function(a){return this._process_options({startDate:a}),this.update(),this.updateNavArrows(),this},getEndDate:function(){return this.o.endDate},setEndDate:function(a){return this._process_options({endDate:a}),this.update(),this.updateNavArrows(),this},setDaysOfWeekDisabled:function(a){return this._process_options({daysOfWeekDisabled:a}),this.update(),this.updateNavArrows(),this},setDaysOfWeekHighlighted:function(a){return this._process_options({daysOfWeekHighlighted:a}),this.update(),this},setDatesDisabled:function(a){this._process_options({datesDisabled:a}),this.update(),this.updateNavArrows()},place:function(){if(this.isInline)return this;var b=this.picker.outerWidth(),c=this.picker.outerHeight(),d=10,e=a(this.o.container),f=e.width(),g="body"===this.o.container?a(document).scrollTop():e.scrollTop(),h=e.offset(),i=[];this.element.parents().each(function(){var b=a(this).css("z-index");"auto"!==b&&0!==b&&i.push(parseInt(b))});var j=Math.max.apply(Math,i)+this.o.zIndexOffset,k=this.component?this.component.parent().offset():this.element.offset(),l=this.component?this.component.outerHeight(!0):this.element.outerHeight(!1),m=this.component?this.component.outerWidth(!0):this.element.outerWidth(!1),n=k.left-h.left,o=k.top-h.top;"body"!==this.o.container&&(o+=g),this.picker.removeClass("datepicker-orient-top datepicker-orient-bottom datepicker-orient-right datepicker-orient-left"),"auto"!==this.o.orientation.x?(this.picker.addClass("datepicker-orient-"+this.o.orientation.x),"right"===this.o.orientation.x&&(n-=b-m)):k.left<0?(this.picker.addClass("datepicker-orient-left"),n-=k.left-d):n+b>f?(this.picker.addClass("datepicker-orient-right"),n+=m-b):this.picker.addClass("datepicker-orient-left");var p,q=this.o.orientation.y;if("auto"===q&&(p=-g+o-c,q=0>p?"bottom":"top"),this.picker.addClass("datepicker-orient-"+q),"top"===q?o-=c+parseInt(this.picker.css("padding-top")):o+=l,this.o.rtl){var r=f-(n+m);this.picker.css({top:o,right:r,zIndex:j})}else this.picker.css({top:o,left:n,zIndex:j});return this},_allow_update:!0,update:function(){if(!this._allow_update)return this;var b=this.dates.copy(),c=[],d=!1;return arguments.length?(a.each(arguments,a.proxy(function(a,b){b instanceof Date&&(b=this._local_to_utc(b)),c.push(b)},this)),d=!0):(c=this.isInput?this.element.val():this.element.data("date")||this.inputField.val(),c=c&&this.o.multidate?c.split(this.o.multidateSeparator):[c],delete this.element.data().date),c=a.map(c,a.proxy(function(a){return r.parseDate(a,this.o.format,this.o.language,this.o.assumeNearbyYear)},this)),c=a.grep(c,a.proxy(function(a){return!this.dateWithinRange(a)||!a},this),!0),this.dates.replace(c),this.dates.length?this.viewDate=new Date(this.dates.get(-1)):this.viewDate<this.o.startDate?this.viewDate=new Date(this.o.startDate):this.viewDate>this.o.endDate?this.viewDate=new Date(this.o.endDate):this.viewDate=this.o.defaultViewDate,d?this.setValue():c.length&&String(b)!==String(this.dates)&&this._trigger("changeDate"),!this.dates.length&&b.length&&this._trigger("clearDate"),this.fill(),this.element.change(),this},fillDow:function(){var b=this.o.weekStart,c="<tr>";for(this.o.calendarWeeks&&(this.picker.find(".datepicker-days .datepicker-switch").attr("colspan",function(a,b){return parseInt(b)+1}),c+='<th class="cw">&#160;</th>');b<this.o.weekStart+7;)c+='<th class="dow',a.inArray(b,this.o.daysOfWeekDisabled)>-1&&(c+=" disabled"),c+='">'+q[this.o.language].daysMin[b++%7]+"</th>";c+="</tr>",this.picker.find(".datepicker-days thead").append(c)},fillMonths:function(){for(var a=this._utc_to_local(this.viewDate),b="",c=0;12>c;){var d=a&&a.getMonth()===c?" focused":"";b+='<span class="month'+d+'">'+q[this.o.language].monthsShort[c++]+"</span>"}this.picker.find(".datepicker-months td").html(b)},setRange:function(b){b&&b.length?this.range=a.map(b,function(a){return a.valueOf()}):delete this.range,this.fill()},getClassNames:function(b){var c=[],d=this.viewDate.getUTCFullYear(),e=this.viewDate.getUTCMonth(),f=new Date;return b.getUTCFullYear()<d||b.getUTCFullYear()===d&&b.getUTCMonth()<e?c.push("old"):(b.getUTCFullYear()>d||b.getUTCFullYear()===d&&b.getUTCMonth()>e)&&c.push("new"),this.focusDate&&b.valueOf()===this.focusDate.valueOf()&&c.push("focused"),this.o.todayHighlight&&b.getUTCFullYear()===f.getFullYear()&&b.getUTCMonth()===f.getMonth()&&b.getUTCDate()===f.getDate()&&c.push("today"),-1!==this.dates.contains(b)&&c.push("active"),this.dateWithinRange(b)||c.push("disabled"),this.dateIsDisabled(b)&&c.push("disabled","disabled-date"),-1!==a.inArray(b.getUTCDay(),this.o.daysOfWeekHighlighted)&&c.push("highlighted"),this.range&&(b>this.range[0]&&b<this.range[this.range.length-1]&&c.push("range"),-1!==a.inArray(b.valueOf(),this.range)&&c.push("selected"),b.valueOf()===this.range[0]&&c.push("range-start"),b.valueOf()===this.range[this.range.length-1]&&c.push("range-end")),c},_fill_yearsView:function(c,d,e,f,g,h,i,j){var k,l,m,n,o,p,q,r,s,t,u;for(k="",l=this.picker.find(c),m=parseInt(g/e,10)*e,o=parseInt(h/f,10)*f,p=parseInt(i/f,10)*f,n=a.map(this.dates,function(a){return parseInt(a.getUTCFullYear()/f,10)*f}),l.find(".datepicker-switch").text(m+"-"+(m+9*f)),q=m-f,r=-1;11>r;r+=1)s=[d],t=null,-1===r?s.push("old"):10===r&&s.push("new"),-1!==a.inArray(q,n)&&s.push("active"),(o>q||q>p)&&s.push("disabled"),q===this.viewDate.getFullYear()&&s.push("focused"),j!==a.noop&&(u=j(new Date(q,0,1)),u===b?u={}:"boolean"==typeof u?u={enabled:u}:"string"==typeof u&&(u={classes:u}),u.enabled===!1&&s.push("disabled"),u.classes&&(s=s.concat(u.classes.split(/\s+/))),u.tooltip&&(t=u.tooltip)),k+='<span class="'+s.join(" ")+'"'+(t?' title="'+t+'"':"")+">"+q+"</span>",q+=f;l.find("td").html(k)},fill:function(){var d,e,f=new Date(this.viewDate),g=f.getUTCFullYear(),h=f.getUTCMonth(),i=this.o.startDate!==-(1/0)?this.o.startDate.getUTCFullYear():-(1/0),j=this.o.startDate!==-(1/0)?this.o.startDate.getUTCMonth():-(1/0),k=this.o.endDate!==1/0?this.o.endDate.getUTCFullYear():1/0,l=this.o.endDate!==1/0?this.o.endDate.getUTCMonth():1/0,m=q[this.o.language].today||q.en.today||"",n=q[this.o.language].clear||q.en.clear||"",o=q[this.o.language].titleFormat||q.en.titleFormat;if(!isNaN(g)&&!isNaN(h)){this.picker.find(".datepicker-days .datepicker-switch").text(r.formatDate(f,o,this.o.language)),this.picker.find("tfoot .today").text(m).toggle(this.o.todayBtn!==!1),this.picker.find("tfoot .clear").text(n).toggle(this.o.clearBtn!==!1),this.picker.find("thead .datepicker-title").text(this.o.title).toggle(""!==this.o.title),this.updateNavArrows(),this.fillMonths();var p=c(g,h-1,28),s=r.getDaysInMonth(p.getUTCFullYear(),p.getUTCMonth());p.setUTCDate(s),p.setUTCDate(s-(p.getUTCDay()-this.o.weekStart+7)%7);var t=new Date(p);p.getUTCFullYear()<100&&t.setUTCFullYear(p.getUTCFullYear()),t.setUTCDate(t.getUTCDate()+42),t=t.valueOf();for(var u,v=[];p.valueOf()<t;){if(p.getUTCDay()===this.o.weekStart&&(v.push("<tr>"),this.o.calendarWeeks)){var w=new Date(+p+(this.o.weekStart-p.getUTCDay()-7)%7*864e5),x=new Date(Number(w)+(11-w.getUTCDay())%7*864e5),y=new Date(Number(y=c(x.getUTCFullYear(),0,1))+(11-y.getUTCDay())%7*864e5),z=(x-y)/864e5/7+1;v.push('<td class="cw">'+z+"</td>")}u=this.getClassNames(p),u.push("day"),this.o.beforeShowDay!==a.noop&&(e=this.o.beforeShowDay(this._utc_to_local(p)),e===b?e={}:"boolean"==typeof e?e={enabled:e}:"string"==typeof e&&(e={classes:e}),e.enabled===!1&&u.push("disabled"),e.classes&&(u=u.concat(e.classes.split(/\s+/))),e.tooltip&&(d=e.tooltip)),u=a.isFunction(a.uniqueSort)?a.uniqueSort(u):a.unique(u),v.push('<td class="'+u.join(" ")+'"'+(d?' title="'+d+'"':"")+">"+p.getUTCDate()+"</td>"),d=null,p.getUTCDay()===this.o.weekEnd&&v.push("</tr>"),p.setUTCDate(p.getUTCDate()+1)}this.picker.find(".datepicker-days tbody").empty().append(v.join(""));var A=q[this.o.language].monthsTitle||q.en.monthsTitle||"Months",B=this.picker.find(".datepicker-months").find(".datepicker-switch").text(this.o.maxViewMode<2?A:g).end().find("span").removeClass("active");if(a.each(this.dates,function(a,b){b.getUTCFullYear()===g&&B.eq(b.getUTCMonth()).addClass("active")}),(i>g||g>k)&&B.addClass("disabled"),g===i&&B.slice(0,j).addClass("disabled"),g===k&&B.slice(l+1).addClass("disabled"),this.o.beforeShowMonth!==a.noop){var C=this;a.each(B,function(c,d){var e=new Date(g,c,1),f=C.o.beforeShowMonth(e);f===b?f={}:"boolean"==typeof f?f={enabled:f}:"string"==typeof f&&(f={classes:f}),f.enabled!==!1||a(d).hasClass("disabled")||a(d).addClass("disabled"),f.classes&&a(d).addClass(f.classes),f.tooltip&&a(d).prop("title",f.tooltip)})}this._fill_yearsView(".datepicker-years","year",10,1,g,i,k,this.o.beforeShowYear),this._fill_yearsView(".datepicker-decades","decade",100,10,g,i,k,this.o.beforeShowDecade),this._fill_yearsView(".datepicker-centuries","century",1e3,100,g,i,k,this.o.beforeShowCentury)}},updateNavArrows:function(){if(this._allow_update){var a=new Date(this.viewDate),b=a.getUTCFullYear(),c=a.getUTCMonth();switch(this.viewMode){case 0:this.o.startDate!==-(1/0)&&b<=this.o.startDate.getUTCFullYear()&&c<=this.o.startDate.getUTCMonth()?this.picker.find(".prev").css({visibility:"hidden"}):this.picker.find(".prev").css({visibility:"visible"}),this.o.endDate!==1/0&&b>=this.o.endDate.getUTCFullYear()&&c>=this.o.endDate.getUTCMonth()?this.picker.find(".next").css({visibility:"hidden"}):this.picker.find(".next").css({visibility:"visible"});break;case 1:case 2:case 3:case 4:this.o.startDate!==-(1/0)&&b<=this.o.startDate.getUTCFullYear()||this.o.maxViewMode<2?this.picker.find(".prev").css({visibility:"hidden"}):this.picker.find(".prev").css({visibility:"visible"}),this.o.endDate!==1/0&&b>=this.o.endDate.getUTCFullYear()||this.o.maxViewMode<2?this.picker.find(".next").css({visibility:"hidden"}):this.picker.find(".next").css({visibility:"visible"})}}},click:function(b){b.preventDefault(),b.stopPropagation();var e,f,g,h,i,j,k;e=a(b.target),e.hasClass("datepicker-switch")&&this.showMode(1);var l=e.closest(".prev, .next");l.length>0&&(f=r.modes[this.viewMode].navStep*(l.hasClass("prev")?-1:1),0===this.viewMode?(this.viewDate=this.moveMonth(this.viewDate,f),this._trigger("changeMonth",this.viewDate)):(this.viewDate=this.moveYear(this.viewDate,f),1===this.viewMode&&this._trigger("changeYear",this.viewDate)),this.fill()),e.hasClass("today")&&!e.hasClass("day")&&(this.showMode(-2),this._setDate(d(),"linked"===this.o.todayBtn?null:"view")),e.hasClass("clear")&&this.clearDates(),e.hasClass("disabled")||(e.hasClass("day")&&(g=parseInt(e.text(),10)||1,h=this.viewDate.getUTCFullYear(),i=this.viewDate.getUTCMonth(),e.hasClass("old")&&(0===i?(i=11,h-=1,j=!0,k=!0):(i-=1,j=!0)),e.hasClass("new")&&(11===i?(i=0,h+=1,j=!0,k=!0):(i+=1,j=!0)),this._setDate(c(h,i,g)),k&&this._trigger("changeYear",this.viewDate),j&&this._trigger("changeMonth",this.viewDate)),e.hasClass("month")&&(this.viewDate.setUTCDate(1),g=1,i=e.parent().find("span").index(e),h=this.viewDate.getUTCFullYear(),this.viewDate.setUTCMonth(i),this._trigger("changeMonth",this.viewDate),1===this.o.minViewMode?(this._setDate(c(h,i,g)),this.showMode()):this.showMode(-1),this.fill()),(e.hasClass("year")||e.hasClass("decade")||e.hasClass("century"))&&(this.viewDate.setUTCDate(1),g=1,i=0,h=parseInt(e.text(),10)||0,this.viewDate.setUTCFullYear(h),e.hasClass("year")&&(this._trigger("changeYear",this.viewDate),2===this.o.minViewMode&&this._setDate(c(h,i,g))),e.hasClass("decade")&&(this._trigger("changeDecade",this.viewDate),3===this.o.minViewMode&&this._setDate(c(h,i,g))),e.hasClass("century")&&(this._trigger("changeCentury",this.viewDate),4===this.o.minViewMode&&this._setDate(c(h,i,g))),this.showMode(-1),this.fill())),this.picker.is(":visible")&&this._focused_from&&a(this._focused_from).focus(),delete this._focused_from},_toggle_multidate:function(a){var b=this.dates.contains(a);if(a||this.dates.clear(),-1!==b?(this.o.multidate===!0||this.o.multidate>1||this.o.toggleActive)&&this.dates.remove(b):this.o.multidate===!1?(this.dates.clear(),this.dates.push(a)):this.dates.push(a),"number"==typeof this.o.multidate)for(;this.dates.length>this.o.multidate;)this.dates.remove(0)},_setDate:function(a,b){b&&"date"!==b||this._toggle_multidate(a&&new Date(a)),b&&"view"!==b||(this.viewDate=a&&new Date(a)),this.fill(),this.setValue(),b&&"view"===b||this._trigger("changeDate"),this.inputField&&this.inputField.change(),!this.o.autoclose||b&&"date"!==b||this.hide()},moveDay:function(a,b){var c=new Date(a);return c.setUTCDate(a.getUTCDate()+b),c},moveWeek:function(a,b){return this.moveDay(a,7*b)},moveMonth:function(a,b){if(!g(a))return this.o.defaultViewDate;if(!b)return a;var c,d,e=new Date(a.valueOf()),f=e.getUTCDate(),h=e.getUTCMonth(),i=Math.abs(b);if(b=b>0?1:-1,1===i)d=-1===b?function(){return e.getUTCMonth()===h}:function(){return e.getUTCMonth()!==c},c=h+b,e.setUTCMonth(c),(0>c||c>11)&&(c=(c+12)%12);else{for(var j=0;i>j;j++)e=this.moveMonth(e,b);c=e.getUTCMonth(),e.setUTCDate(f),d=function(){return c!==e.getUTCMonth()}}for(;d();)e.setUTCDate(--f),e.setUTCMonth(c);return e},moveYear:function(a,b){return this.moveMonth(a,12*b)},moveAvailableDate:function(a,b,c){do{if(a=this[c](a,b),!this.dateWithinRange(a))return!1;c="moveDay"}while(this.dateIsDisabled(a));return a},weekOfDateIsDisabled:function(b){return-1!==a.inArray(b.getUTCDay(),this.o.daysOfWeekDisabled)},dateIsDisabled:function(b){return this.weekOfDateIsDisabled(b)||a.grep(this.o.datesDisabled,function(a){return e(b,a)}).length>0},dateWithinRange:function(a){return a>=this.o.startDate&&a<=this.o.endDate},keydown:function(a){if(!this.picker.is(":visible"))return void((40===a.keyCode||27===a.keyCode)&&(this.show(),a.stopPropagation()));var b,c,d=!1,e=this.focusDate||this.viewDate;switch(a.keyCode){case 27:this.focusDate?(this.focusDate=null,this.viewDate=this.dates.get(-1)||this.viewDate,this.fill()):this.hide(),a.preventDefault(),a.stopPropagation();break;case 37:case 38:case 39:case 40:if(!this.o.keyboardNavigation||7===this.o.daysOfWeekDisabled.length)break;b=37===a.keyCode||38===a.keyCode?-1:1,0===this.viewMode?a.ctrlKey?(c=this.moveAvailableDate(e,b,"moveYear"),c&&this._trigger("changeYear",this.viewDate)):a.shiftKey?(c=this.moveAvailableDate(e,b,"moveMonth"),c&&this._trigger("changeMonth",this.viewDate)):37===a.keyCode||39===a.keyCode?c=this.moveAvailableDate(e,b,"moveDay"):this.weekOfDateIsDisabled(e)||(c=this.moveAvailableDate(e,b,"moveWeek")):1===this.viewMode?((38===a.keyCode||40===a.keyCode)&&(b=4*b),c=this.moveAvailableDate(e,b,"moveMonth")):2===this.viewMode&&((38===a.keyCode||40===a.keyCode)&&(b=4*b),c=this.moveAvailableDate(e,b,"moveYear")),c&&(this.focusDate=this.viewDate=c,this.setValue(),this.fill(),a.preventDefault());break;case 13:if(!this.o.forceParse)break;e=this.focusDate||this.dates.get(-1)||this.viewDate,this.o.keyboardNavigation&&(this._toggle_multidate(e),d=!0),this.focusDate=null,this.viewDate=this.dates.get(-1)||this.viewDate,this.setValue(),this.fill(),this.picker.is(":visible")&&(a.preventDefault(),a.stopPropagation(),this.o.autoclose&&this.hide());break;case 9:this.focusDate=null,this.viewDate=this.dates.get(-1)||this.viewDate,this.fill(),this.hide()}d&&(this.dates.length?this._trigger("changeDate"):this._trigger("clearDate"),this.inputField&&this.inputField.change())},showMode:function(a){a&&(this.viewMode=Math.max(this.o.minViewMode,Math.min(this.o.maxViewMode,this.viewMode+a))),this.picker.children("div").hide().filter(".datepicker-"+r.modes[this.viewMode].clsName).show(),this.updateNavArrows()}};var l=function(b,c){a(b).data("datepicker",this),this.element=a(b),this.inputs=a.map(c.inputs,function(a){return a.jquery?a[0]:a}),delete c.inputs,n.call(a(this.inputs),c).on("changeDate",a.proxy(this.dateUpdated,this)),this.pickers=a.map(this.inputs,function(b){return a(b).data("datepicker")}),this.updateDates()};l.prototype={updateDates:function(){this.dates=a.map(this.pickers,function(a){return a.getUTCDate()}),this.updateRanges()},updateRanges:function(){var b=a.map(this.dates,function(a){return a.valueOf()});a.each(this.pickers,function(a,c){c.setRange(b)})},dateUpdated:function(b){if(!this.updating){this.updating=!0;var c=a(b.target).data("datepicker");if("undefined"!=typeof c){var d=c.getUTCDate(),e=a.inArray(b.target,this.inputs),f=e-1,g=e+1,h=this.inputs.length;if(-1!==e){if(a.each(this.pickers,function(a,b){b.getUTCDate()||b.setUTCDate(d)}),d<this.dates[f])for(;f>=0&&d<this.dates[f];)this.pickers[f--].setUTCDate(d);else if(d>this.dates[g])for(;h>g&&d>this.dates[g];)this.pickers[g++].setUTCDate(d);this.updateDates(),delete this.updating}}}},remove:function(){a.map(this.pickers,function(a){a.remove()}),delete this.element.data().datepicker}};var m=a.fn.datepicker,n=function(c){var d=Array.apply(null,arguments);d.shift();var e;if(this.each(function(){var b=a(this),f=b.data("datepicker"),g="object"==typeof c&&c;if(!f){var j=h(this,"date"),m=a.extend({},o,j,g),n=i(m.language),p=a.extend({},o,n,j,g);b.hasClass("input-daterange")||p.inputs?(a.extend(p,{inputs:p.inputs||b.find("input").toArray()}),f=new l(this,p)):f=new k(this,p),b.data("datepicker",f)}"string"==typeof c&&"function"==typeof f[c]&&(e=f[c].apply(f,d))}),e===b||e instanceof k||e instanceof l)return this;if(this.length>1)throw new Error("Using only allowed for the collection of a single element ("+c+" function)");return e};a.fn.datepicker=n;var o=a.fn.datepicker.defaults={assumeNearbyYear:!1,autoclose:!1,beforeShowDay:a.noop,beforeShowMonth:a.noop,beforeShowYear:a.noop,beforeShowDecade:a.noop,beforeShowCentury:a.noop,calendarWeeks:!1,clearBtn:!1,toggleActive:!1,daysOfWeekDisabled:[],daysOfWeekHighlighted:[],datesDisabled:[],endDate:1/0,forceParse:!0,format:"mm/dd/yyyy",keyboardNavigation:!0,language:"en",minViewMode:0,maxViewMode:4,multidate:!1,multidateSeparator:",",orientation:"auto",rtl:!1,startDate:-(1/0),startView:0,todayBtn:!1,todayHighlight:!1,weekStart:0,disableTouchKeyboard:!1,enableOnReadonly:!0,showOnFocus:!0,zIndexOffset:10,container:"body",immediateUpdates:!1,title:"",templates:{leftArrow:"&laquo;",rightArrow:"&raquo;"}},p=a.fn.datepicker.locale_opts=["format","rtl","weekStart"];a.fn.datepicker.Constructor=k;var q=a.fn.datepicker.dates={en:{days:["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"],daysShort:["Sun","Mon","Tue","Wed","Thu","Fri","Sat"],daysMin:["Su","Mo","Tu","We","Th","Fr","Sa"],months:["January","February","March","April","May","June","July","August","September","October","November","December"],monthsShort:["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"],today:"Today",clear:"Clear",titleFormat:"MM yyyy"}},r={modes:[{clsName:"days",navFnc:"Month",navStep:1},{clsName:"months",navFnc:"FullYear",navStep:1},{clsName:"years",navFnc:"FullYear",navStep:10},{clsName:"decades",navFnc:"FullDecade",navStep:100},{clsName:"centuries",navFnc:"FullCentury",navStep:1e3}],isLeapYear:function(a){return a%4===0&&a%100!==0||a%400===0},getDaysInMonth:function(a,b){return[31,r.isLeapYear(a)?29:28,31,30,31,30,31,31,30,31,30,31][b]},validParts:/dd?|DD?|mm?|MM?|yy(?:yy)?/g,nonpunctuation:/[^ -\/:-@\u5e74\u6708\u65e5\[-`{-~\t\n\r]+/g,parseFormat:function(a){if("function"==typeof a.toValue&&"function"==typeof a.toDisplay)return a;var b=a.replace(this.validParts,"\x00").split("\x00"),c=a.match(this.validParts);if(!b||!b.length||!c||0===c.length)throw new Error("Invalid date format.");return{separators:b,parts:c}},parseDate:function(e,f,g,h){function i(a,b){return b===!0&&(b=10),100>a&&(a+=2e3,a>(new Date).getFullYear()+b&&(a-=100)),a}function j(){var a=this.slice(0,s[n].length),b=s[n].slice(0,a.length);return a.toLowerCase()===b.toLowerCase()}if(!e)return b;if(e instanceof Date)return e;if("string"==typeof f&&(f=r.parseFormat(f)),f.toValue)return f.toValue(e,f,g);var l,m,n,o,p=/([\-+]\d+)([dmwy])/,s=e.match(/([\-+]\d+)([dmwy])/g),t={d:"moveDay",m:"moveMonth",w:"moveWeek",y:"moveYear"},u={yesterday:"-1d",today:"+0d",tomorrow:"+1d"};if(/^[\-+]\d+[dmwy]([\s,]+[\-+]\d+[dmwy])*$/.test(e)){for(e=new Date,n=0;n<s.length;n++)l=p.exec(s[n]),m=parseInt(l[1]),o=t[l[2]],e=k.prototype[o](e,m);return c(e.getUTCFullYear(),e.getUTCMonth(),e.getUTCDate())}if("undefined"!=typeof u[e]&&(e=u[e],s=e.match(/([\-+]\d+)([dmwy])/g),/^[\-+]\d+[dmwy]([\s,]+[\-+]\d+[dmwy])*$/.test(e))){for(e=new Date,n=0;n<s.length;n++)l=p.exec(s[n]),m=parseInt(l[1]),o=t[l[2]],e=k.prototype[o](e,m);return c(e.getUTCFullYear(),e.getUTCMonth(),e.getUTCDate())}s=e&&e.match(this.nonpunctuation)||[],e=new Date;var v,w,x={},y=["yyyy","yy","M","MM","m","mm","d","dd"],z={yyyy:function(a,b){return a.setUTCFullYear(h?i(b,h):b)},yy:function(a,b){return a.setUTCFullYear(h?i(b,h):b)},m:function(a,b){if(isNaN(a))return a;for(b-=1;0>b;)b+=12;for(b%=12,a.setUTCMonth(b);a.getUTCMonth()!==b;)a.setUTCDate(a.getUTCDate()-1);return a},d:function(a,b){return a.setUTCDate(b)}};z.M=z.MM=z.mm=z.m,z.dd=z.d,e=d();var A=f.parts.slice();if(s.length!==A.length&&(A=a(A).filter(function(b,c){return-1!==a.inArray(c,y)}).toArray()),s.length===A.length){var B;for(n=0,B=A.length;B>n;n++){if(v=parseInt(s[n],10),l=A[n],isNaN(v))switch(l){case"MM":w=a(q[g].months).filter(j),v=a.inArray(w[0],q[g].months)+1;break;case"M":w=a(q[g].monthsShort).filter(j),v=a.inArray(w[0],q[g].monthsShort)+1}x[l]=v}var C,D;for(n=0;n<y.length;n++)D=y[n],D in x&&!isNaN(x[D])&&(C=new Date(e),z[D](C,x[D]),isNaN(C)||(e=C))}return e},formatDate:function(b,c,d){if(!b)return"";if("string"==typeof c&&(c=r.parseFormat(c)),
c.toDisplay)return c.toDisplay(b,c,d);var e={d:b.getUTCDate(),D:q[d].daysShort[b.getUTCDay()],DD:q[d].days[b.getUTCDay()],m:b.getUTCMonth()+1,M:q[d].monthsShort[b.getUTCMonth()],MM:q[d].months[b.getUTCMonth()],yy:b.getUTCFullYear().toString().substring(2),yyyy:b.getUTCFullYear()};e.dd=(e.d<10?"0":"")+e.d,e.mm=(e.m<10?"0":"")+e.m,b=[];for(var f=a.extend([],c.separators),g=0,h=c.parts.length;h>=g;g++)f.length&&b.push(f.shift()),b.push(e[c.parts[g]]);return b.join("")},headTemplate:'<thead><tr><th colspan="7" class="datepicker-title"></th></tr><tr><th class="prev">&laquo;</th><th colspan="5" class="datepicker-switch"></th><th class="next">&raquo;</th></tr></thead>',contTemplate:'<tbody><tr><td colspan="7"></td></tr></tbody>',footTemplate:'<tfoot><tr><th colspan="7" class="today"></th></tr><tr><th colspan="7" class="clear"></th></tr></tfoot>'};r.template='<div class="datepicker"><div class="datepicker-days"><table class="table-condensed">'+r.headTemplate+"<tbody></tbody>"+r.footTemplate+'</table></div><div class="datepicker-months"><table class="table-condensed">'+r.headTemplate+r.contTemplate+r.footTemplate+'</table></div><div class="datepicker-years"><table class="table-condensed">'+r.headTemplate+r.contTemplate+r.footTemplate+'</table></div><div class="datepicker-decades"><table class="table-condensed">'+r.headTemplate+r.contTemplate+r.footTemplate+'</table></div><div class="datepicker-centuries"><table class="table-condensed">'+r.headTemplate+r.contTemplate+r.footTemplate+"</table></div></div>",a.fn.datepicker.DPGlobal=r,a.fn.datepicker.noConflict=function(){return a.fn.datepicker=m,this},a.fn.datepicker.version="1.6.4",a(document).on("focus.datepicker.data-api click.datepicker.data-api",'[data-provide="datepicker"]',function(b){var c=a(this);c.data("datepicker")||(b.preventDefault(),n.call(c,"show"))}),a(function(){n.call(a('[data-provide="datepicker-inline"]'))})});;var AppUnitsModal = {

    updateData: function($unit, $modal){

        console.log("test");
        var $unitName = $modal.find('#modal__unit');
        var $unitPlan = $modal.find('#modal__plan');
        var $unitRent = $modal.find('#modal__rent');
        var $available = $modal.find('#modal__available');


        $unitName.text( "Unit #"+ $unit.find('.col-3 span').text() );
        $unitPlan.text( $unit.parents('.item-result').find('.item-result-toggle .item-info-wrap .title-wrap span.title').text() + " Plan" );
        $unitRent.text( $unit.find('.col-4 span').text().replace('×','').trim() );

        var availableAt = $unit.find('.col-5').text().replace('Avail.','').trim();
        $available.text( availableAt );

        // .item-result .item-result-toggle .item-info-wrap. .title-wrap span.title
    }

}
if (jQuery('#datepicker1').length) {
    jQuery( "#datepicker1" ).datepicker({
        minDate: new Date(2019, 8),
        maxDate: ""
    })
}
;
var AppSearch = {};
AppSearch.filter = function(params){
    // console.log('filter by ',params);
}

AppSearch.showAllUnits = function(){
    $('.item-result').removeClass('hidden');

    var $min = $('#total_results_min');
    $min.text($min.attr('data-default'));
}

AppSearch.randomUnitFilter = function(callback) {
    var units = $('.item-result');
    var $min = $('#total_results_min');
    var $max = $('#total_results_max');

    if(units.length === 0) return;

    var available = 0;
    var hidden = 0;

    for(var i=0;i<units.length;i++){

        var rand = Math.random();
        var $unit = $(units[i]);

        if (rand > 0.5) {
            ++available;
            $unit.removeClass('hidden');
        } else {
            ++hidden;
            if( !$unit.hasClass('hidden')) $unit.addClass('hidden');
        }
    }

    // console.log('available units', available);

    if(available > 1){
        $min.text('(1-'+available+')');
    }else{
        $min.text(available);
    }

    // and show same number of random floors on selected floor
    MFS.building.floorplan.setAvailableUnits(available)

    if(callback) callback();
};
var AppSecondaryInfo = {

    container : $('.floors_info_wrapper'),
    div : {
        floor : $('.floor_info__title'),
        unit : $('.floor_info__units'),
        price : $('.floor_info__price'),
    },
    visibilityClass : 'visible',
    lastVisible : null,
    isVisible : false,
    tempHide : false,
    data : {},

    init : function(){

       // var file = TPL_images+'/data/floors/linkphx/floorsInfo.json';
        var file = '/templates/images/data/floors/linkphx/floorsInfo.json';
        var scope = this;

        $.getJSON( file, function( data ) {
            //console.log('floor data loaded', data);
            scope.data = data;
        }, function(err){
            console.warn('Floor data failed to load', err);
        });

        this.bindButtons();
    },

    show : function(params){

        if(this.lastVisible !== null && this.lastVisible == params.name) return;

        this.lastVisible = params.name;

        this.updateVisibleInfo(params);

        this.container.addClass(this.visibilityClass);

        this.isVisible = true;

    },

    hide: function(){

        //this.lastVisible = null;
        this.isVisible = false;
        this.container.removeClass(this.visibilityClass);
    },


    // trigger when unit window is hidden (in case we had bottom info opened before)
    showAgain: function(){

        if(this.tempHide){
            this.tempHide = false;

            if(!this.isVisible){
                this.container.addClass(this.visibilityClass);
                this.isVisible = true;
            }

        }

    },
    // trigger this if wanting to see unit window
    hideTemporary : function () {

        if( this.isVisible ){
            this.tempHide = true;
            this.hide();
        }

    },

    updateVisibleInfo: function(params){

        var info = params.info;

        if(typeof info === 'undefined' || info === null){
            console.warn('Missing floor info', params.name, params);
            return;
        }

        this.div.floor.text(info.name);

        if(parseInt(info.availableUnits) > 0){
            this.div.unit.text(info.availableUnits +" Units Available");
        }else{
            this.div.unit.text("Not Available");
        }

        if(typeof info.price == 'object'){
            this.div.price.text( currency(info.price.min) +' - '+ currency(info.price.max));
        }else{
            this.div.price.text( currency(info.price) );
        }

        function currency(price){
            return '$' + price;
        }
    },

    getInfoForFloor : function(name){

        if(this.data === null){
            console.warn('Trigger AppSecondaryInfo.init() on page load for floors information');
            return;
        }

        // get floor number withing FLOORNAMES by looking up floorName
        var shortNumber = getFloorNumberByName(name, FLOORNAMES);
        var data = null;

        // search either floor number e.g. 08 or a mix of numbers separated by - e.g. 09-27
        for(var index in this.data){
            if(index.indexOf('-') > -1){
                var split = index.split('-');
                var low = parseInt(split[0]);
                var hi = parseInt(split[1]);
                if(shortNumber >= low && shortNumber <= hi){
                    data = this.data[index];
                    break;
                }
            }else if(parseInt(index) === shortNumber){
                data = this.data[index];
                break;
            }
        }

        if(data !== null){
            return data;
        }

        console.warn('Floor information not found for: '+name, shortNumber, this.data);
        return {};
    },

    lastElevation: null,
    changePreviews: function(elevation){

        if(typeof elevation === 'undefined' || elevation === null) return;

        if(this.lastElevation !== elevation){
            this.lastElevation = elevation;
        }

        var $n = $('#preview_n');
        var $e = $('#preview_e');
        var $s = $('#preview_s');
        var $w = $('#preview_w');


        if(elevation == 10 || elevation == 11 || elevation == 12)
        {
            if(elevation == 10)
            {
                var bg = "url("+Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+elevation+"-"+(elevation+1)+"/"+elevation+"{SIDE}.jpg)";
                var src =  Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+elevation+"-"+(elevation+1)+"/"+elevation+"{SIDE}.jpg";
            }
            else if(elevation == 11)
            {
                var bg = "url("+Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+(elevation-1)+"-"+(elevation)+"/"+elevation+"{SIDE}.jpg)";
                var src = Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+(elevation-1)+"-"+(elevation)+"/"+elevation+"{SIDE}.jpg";
            }
            else
            {
                var bg = "url("+Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+(elevation-2)+"-"+(elevation-1)+"/"+(elevation-1)+"{SIDE}.jpg)";
                var src = Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+(elevation-1)+"-"+(elevation)+"/"+elevation+"{SIDE}.jpg";
                
                /*var bg = "url("+Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+elevation+"-"+(elevation+1)+"/"+(elevation)+"{SIDE}.jpg)";
                var src = Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+elevation+"-"+(elevation+1)+"/"+(elevation)+"{SIDE}.jpg";*/
            }
        }
        else if(elevation % 2 == 0)
        {
            var bg = "url("+Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+elevation+"-"+(elevation+1)+"/"+elevation+"{SIDE}.jpg)";
            var src = Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+elevation+"-"+(elevation+1)+"/"+elevation+"{SIDE}.jpg";
        }
        else
        {
            var bg = "url("+Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+(elevation-1)+"-"+elevation+"/"+(elevation-1)+"{SIDE}.jpg)";
            var src = Main_Host_Url+"/templates/images"+"/preview-outside/Floor "+(elevation-1)+"-"+elevation+"/"+(elevation-1)+"{SIDE}.jpg";
        }


        /*$n.css({'background-image' : bg.replace('{SIDE}','-N').replace(/ /g, '%20')});
        $e.css({'background-image' : bg.replace('{SIDE}','-E').replace(/ /g, '%20')});
        $s.css({'background-image' : bg.replace('{SIDE}','-S').replace(/ /g, '%20')});
        $w.css({'background-image' : bg.replace('{SIDE}','-W').replace(/ /g, '%20')});*/

        $n.css({'background-image' : bg.replace('{SIDE}','-N').replace(/ /g, '%20')}).parent('.venobox').attr('href',src.replace('{SIDE}','-N').replace(/ /g, '%20'));
        $e.css({'background-image' : bg.replace('{SIDE}','-E').replace(/ /g, '%20')}).parent('.venobox').attr('href',src.replace('{SIDE}','-E').replace(/ /g, '%20'));
        $s.css({'background-image' : bg.replace('{SIDE}','-S').replace(/ /g, '%20')}).parent('.venobox').attr('href',src.replace('{SIDE}','-S').replace(/ /g, '%20'));
        $w.css({'background-image' : bg.replace('{SIDE}','-W').replace(/ /g, '%20')}).parent('.venobox').attr('href',src.replace('{SIDE}','-W').replace(/ /g, '%20'));

        /*if(elevation == 2 || elevation == 3 || elevation == 4 || elevation == 5){
            $n.parents('.floor_view').hide();
            $e.parents('.floor_view').hide();
            $w.parents('.floor_view').hide();
        }
        else{
            $n.parents('.floor_view').show();
            $e.parents('.floor_view').show();
            $w.parents('.floor_view').show();
        }*/
        $n.parents('.floor_view').show();
        $e.parents('.floor_view').show();
        $w.parents('.floor_view').show();
        $s.parents('.floor_view').show();

    },

    updatePreviews: function(floorNumber){

        var elevation = getElevation(floorNumber);

        this.changePreviews(elevation);

        function getElevation(name){

            var elevations = [125,200,260];
            var shortNumber = getFloorNumberByName(name, FLOORNAMES); // integer

            // depending on floor number return diffreent elevation views
           /* if(shortNumber > 25){
                return elevations[2];

            }else if(shortNumber > 15){
                return elevations[1];

            }*/

            return shortNumber;
        }

    },
    /*changePreviews: function(elevation){

        if(typeof elevation === 'undefined' || elevation === null) return;

        if(this.lastElevation !== elevation){
            this.lastElevation = elevation;
        }

        var $n = $('#preview_n');
        var $e = $('#preview_e');
        var $s = $('#preview_s');
        var $w = $('#preview_w');

        if (elevation % 2 === 0)
        {
            var bg = "url("+Main_Host_Url+"/templates/images/preview-outside/Floor "+(elevation-1)+"-"+elevation+"/"+elevation-1+"{SIDE}.jpg)";
        }
        else{
            var bg = "url("+Main_Host_Url+"/templates/images/preview-outside/Floor "+elevation+"-"+(elevation+1)+"/"+elevation+"{SIDE}.jpg)";
        }


        $n.css('background-image' , bg.replace('{SIDE}','-N'));
        $e.css({'background-image' : bg.replace('{SIDE}','-E')});
        $s.css({'background-image' : bg.replace('{SIDE}','-S')});
        $w.css({'background-image' : bg.replace('{SIDE}','-W')});


    },

    updatePreviews: function(floorNumber){

        var elevation = getElevation(floorNumber);

        this.changePreviews(elevation);

        function getElevation(name){

            var elevations = [125,200,260];
            var shortNumber = getFloorNumberByName(name, FLOORNAMES); // integer

            // depending on floor number return diffreent elevation views
            /*if(shortNumber > 25){
                return elevations[2];

            }else if(shortNumber > 15){
                return elevations[1];

            }*/
            //return floor number
           /* return shortNumber;
        }

    },*/

    bindButtons: function(){

        $('#floor_up').on('click', function(){
            MFS.building.floorplan.goToFloor(1); // one up
        });

        $('#floor_down').on('click', function(){
            MFS.building.floorplan.goToFloor(-1); // one down
        });

        $('#back_to_building').on('click', function(){


           MFS.events.manualFloorplanHide();
           getPage('frmqSearch1',false);
        });

        $('#floors_info_close').on('click', function(){

            MFS.events.manualFloorplanHide();
            getPage('frmqSearch1', false);
        });

    },

    changeCurrentFloor: function(floorNumber){

        var floorName = MFS.building.floor.fullFloorName(floorNumber);

        this.updatePreviews(floorNumber);

        $('.floor_number .current_floor').html(floorName);

    },



};(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
	typeof define === 'function' && define.amd ? define(['exports'], factory) :
	(factory((global.THREE = {})));
}(this, (function (exports) { 'use strict';

	// Polyfills

	if ( Number.EPSILON === undefined ) {

		Number.EPSILON = Math.pow( 2, - 52 );

	}

	if ( Number.isInteger === undefined ) {

		// Missing in IE
		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger

		Number.isInteger = function ( value ) {

			return typeof value === 'number' && isFinite( value ) && Math.floor( value ) === value;

		};

	}

	//

	if ( Math.sign === undefined ) {

		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign

		Math.sign = function ( x ) {

			return ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;

		};

	}

	if ( 'name' in Function.prototype === false ) {

		// Missing in IE
		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name

		Object.defineProperty( Function.prototype, 'name', {

			get: function () {

				return this.toString().match( /^\s*function\s*([^\(\s]*)/ )[ 1 ];

			}

		} );

	}

	if ( Object.assign === undefined ) {

		// Missing in IE
		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign

		( function () {

			Object.assign = function ( target ) {

				if ( target === undefined || target === null ) {

					throw new TypeError( 'Cannot convert undefined or null to object' );

				}

				var output = Object( target );

				for ( var index = 1; index < arguments.length; index ++ ) {

					var source = arguments[ index ];

					if ( source !== undefined && source !== null ) {

						for ( var nextKey in source ) {

							if ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {

								output[ nextKey ] = source[ nextKey ];

							}

						}

					}

				}

				return output;

			};

		} )();

	}

	/**
	 * https://github.com/mrdoob/eventdispatcher.js/
	 */

	function EventDispatcher() {}

	Object.assign( EventDispatcher.prototype, {

		addEventListener: function ( type, listener ) {

			if ( this._listeners === undefined ) this._listeners = {};

			var listeners = this._listeners;

			if ( listeners[ type ] === undefined ) {

				listeners[ type ] = [];

			}

			if ( listeners[ type ].indexOf( listener ) === - 1 ) {

				listeners[ type ].push( listener );

			}

		},

		hasEventListener: function ( type, listener ) {

			if ( this._listeners === undefined ) return false;

			var listeners = this._listeners;

			return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;

		},

		removeEventListener: function ( type, listener ) {

			if ( this._listeners === undefined ) return;

			var listeners = this._listeners;
			var listenerArray = listeners[ type ];

			if ( listenerArray !== undefined ) {

				var index = listenerArray.indexOf( listener );

				if ( index !== - 1 ) {

					listenerArray.splice( index, 1 );

				}

			}

		},

		dispatchEvent: function ( event ) {

			if ( this._listeners === undefined ) return;

			var listeners = this._listeners;
			var listenerArray = listeners[ event.type ];

			if ( listenerArray !== undefined ) {

				event.target = this;

				var array = listenerArray.slice( 0 );

				for ( var i = 0, l = array.length; i < l; i ++ ) {

					array[ i ].call( this, event );

				}

			}

		}

	} );

	var REVISION = '96dev';
	var MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };
	var CullFaceNone = 0;
	var CullFaceBack = 1;
	var CullFaceFront = 2;
	var CullFaceFrontBack = 3;
	var FrontFaceDirectionCW = 0;
	var FrontFaceDirectionCCW = 1;
	var BasicShadowMap = 0;
	var PCFShadowMap = 1;
	var PCFSoftShadowMap = 2;
	var FrontSide = 0;
	var BackSide = 1;
	var DoubleSide = 2;
	var FlatShading = 1;
	var SmoothShading = 2;
	var NoColors = 0;
	var FaceColors = 1;
	var VertexColors = 2;
	var NoBlending = 0;
	var NormalBlending = 1;
	var AdditiveBlending = 2;
	var SubtractiveBlending = 3;
	var MultiplyBlending = 4;
	var CustomBlending = 5;
	var AddEquation = 100;
	var SubtractEquation = 101;
	var ReverseSubtractEquation = 102;
	var MinEquation = 103;
	var MaxEquation = 104;
	var ZeroFactor = 200;
	var OneFactor = 201;
	var SrcColorFactor = 202;
	var OneMinusSrcColorFactor = 203;
	var SrcAlphaFactor = 204;
	var OneMinusSrcAlphaFactor = 205;
	var DstAlphaFactor = 206;
	var OneMinusDstAlphaFactor = 207;
	var DstColorFactor = 208;
	var OneMinusDstColorFactor = 209;
	var SrcAlphaSaturateFactor = 210;
	var NeverDepth = 0;
	var AlwaysDepth = 1;
	var LessDepth = 2;
	var LessEqualDepth = 3;
	var EqualDepth = 4;
	var GreaterEqualDepth = 5;
	var GreaterDepth = 6;
	var NotEqualDepth = 7;
	var MultiplyOperation = 0;
	var MixOperation = 1;
	var AddOperation = 2;
	var NoToneMapping = 0;
	var LinearToneMapping = 1;
	var ReinhardToneMapping = 2;
	var Uncharted2ToneMapping = 3;
	var CineonToneMapping = 4;
	var UVMapping = 300;
	var CubeReflectionMapping = 301;
	var CubeRefractionMapping = 302;
	var EquirectangularReflectionMapping = 303;
	var EquirectangularRefractionMapping = 304;
	var SphericalReflectionMapping = 305;
	var CubeUVReflectionMapping = 306;
	var CubeUVRefractionMapping = 307;
	var RepeatWrapping = 1000;
	var ClampToEdgeWrapping = 1001;
	var MirroredRepeatWrapping = 1002;
	var NearestFilter = 1003;
	var NearestMipMapNearestFilter = 1004;
	var NearestMipMapLinearFilter = 1005;
	var LinearFilter = 1006;
	var LinearMipMapNearestFilter = 1007;
	var LinearMipMapLinearFilter = 1008;
	var UnsignedByteType = 1009;
	var ByteType = 1010;
	var ShortType = 1011;
	var UnsignedShortType = 1012;
	var IntType = 1013;
	var UnsignedIntType = 1014;
	var FloatType = 1015;
	var HalfFloatType = 1016;
	var UnsignedShort4444Type = 1017;
	var UnsignedShort5551Type = 1018;
	var UnsignedShort565Type = 1019;
	var UnsignedInt248Type = 1020;
	var AlphaFormat = 1021;
	var RGBFormat = 1022;
	var RGBAFormat = 1023;
	var LuminanceFormat = 1024;
	var LuminanceAlphaFormat = 1025;
	var RGBEFormat = RGBAFormat;
	var DepthFormat = 1026;
	var DepthStencilFormat = 1027;
	var RGB_S3TC_DXT1_Format = 33776;
	var RGBA_S3TC_DXT1_Format = 33777;
	var RGBA_S3TC_DXT3_Format = 33778;
	var RGBA_S3TC_DXT5_Format = 33779;
	var RGB_PVRTC_4BPPV1_Format = 35840;
	var RGB_PVRTC_2BPPV1_Format = 35841;
	var RGBA_PVRTC_4BPPV1_Format = 35842;
	var RGBA_PVRTC_2BPPV1_Format = 35843;
	var RGB_ETC1_Format = 36196;
	var RGBA_ASTC_4x4_Format = 37808;
	var RGBA_ASTC_5x4_Format = 37809;
	var RGBA_ASTC_5x5_Format = 37810;
	var RGBA_ASTC_6x5_Format = 37811;
	var RGBA_ASTC_6x6_Format = 37812;
	var RGBA_ASTC_8x5_Format = 37813;
	var RGBA_ASTC_8x6_Format = 37814;
	var RGBA_ASTC_8x8_Format = 37815;
	var RGBA_ASTC_10x5_Format = 37816;
	var RGBA_ASTC_10x6_Format = 37817;
	var RGBA_ASTC_10x8_Format = 37818;
	var RGBA_ASTC_10x10_Format = 37819;
	var RGBA_ASTC_12x10_Format = 37820;
	var RGBA_ASTC_12x12_Format = 37821;
	var LoopOnce = 2200;
	var LoopRepeat = 2201;
	var LoopPingPong = 2202;
	var InterpolateDiscrete = 2300;
	var InterpolateLinear = 2301;
	var InterpolateSmooth = 2302;
	var ZeroCurvatureEnding = 2400;
	var ZeroSlopeEnding = 2401;
	var WrapAroundEnding = 2402;
	var TrianglesDrawMode = 0;
	var TriangleStripDrawMode = 1;
	var TriangleFanDrawMode = 2;
	var LinearEncoding = 3000;
	var sRGBEncoding = 3001;
	var GammaEncoding = 3007;
	var RGBEEncoding = 3002;
	var LogLuvEncoding = 3003;
	var RGBM7Encoding = 3004;
	var RGBM16Encoding = 3005;
	var RGBDEncoding = 3006;
	var BasicDepthPacking = 3200;
	var RGBADepthPacking = 3201;
	var TangentSpaceNormalMap = 0;
	var ObjectSpaceNormalMap = 1;

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	var _Math = {

		DEG2RAD: Math.PI / 180,
		RAD2DEG: 180 / Math.PI,

		generateUUID: ( function () {

			// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136

			var lut = [];

			for ( var i = 0; i < 256; i ++ ) {

				lut[ i ] = ( i < 16 ? '0' : '' ) + ( i ).toString( 16 );

			}

			return function generateUUID() {

				var d0 = Math.random() * 0xffffffff | 0;
				var d1 = Math.random() * 0xffffffff | 0;
				var d2 = Math.random() * 0xffffffff | 0;
				var d3 = Math.random() * 0xffffffff | 0;
				var uuid = lut[ d0 & 0xff ] + lut[ d0 >> 8 & 0xff ] + lut[ d0 >> 16 & 0xff ] + lut[ d0 >> 24 & 0xff ] + '-' +
					lut[ d1 & 0xff ] + lut[ d1 >> 8 & 0xff ] + '-' + lut[ d1 >> 16 & 0x0f | 0x40 ] + lut[ d1 >> 24 & 0xff ] + '-' +
					lut[ d2 & 0x3f | 0x80 ] + lut[ d2 >> 8 & 0xff ] + '-' + lut[ d2 >> 16 & 0xff ] + lut[ d2 >> 24 & 0xff ] +
					lut[ d3 & 0xff ] + lut[ d3 >> 8 & 0xff ] + lut[ d3 >> 16 & 0xff ] + lut[ d3 >> 24 & 0xff ];

				// .toUpperCase() here flattens concatenated strings to save heap memory space.
				return uuid.toUpperCase();

			};

		} )(),

		clamp: function ( value, min, max ) {

			return Math.max( min, Math.min( max, value ) );

		},

		// compute euclidian modulo of m % n
		// https://en.wikipedia.org/wiki/Modulo_operation

		euclideanModulo: function ( n, m ) {

			return ( ( n % m ) + m ) % m;

		},

		// Linear mapping from range <a1, a2> to range <b1, b2>

		mapLinear: function ( x, a1, a2, b1, b2 ) {

			return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );

		},

		// https://en.wikipedia.org/wiki/Linear_interpolation

		lerp: function ( x, y, t ) {

			return ( 1 - t ) * x + t * y;

		},

		// http://en.wikipedia.org/wiki/Smoothstep

		smoothstep: function ( x, min, max ) {

			if ( x <= min ) return 0;
			if ( x >= max ) return 1;

			x = ( x - min ) / ( max - min );

			return x * x * ( 3 - 2 * x );

		},

		smootherstep: function ( x, min, max ) {

			if ( x <= min ) return 0;
			if ( x >= max ) return 1;

			x = ( x - min ) / ( max - min );

			return x * x * x * ( x * ( x * 6 - 15 ) + 10 );

		},

		// Random integer from <low, high> interval

		randInt: function ( low, high ) {

			return low + Math.floor( Math.random() * ( high - low + 1 ) );

		},

		// Random float from <low, high> interval

		randFloat: function ( low, high ) {

			return low + Math.random() * ( high - low );

		},

		// Random float from <-range/2, range/2> interval

		randFloatSpread: function ( range ) {

			return range * ( 0.5 - Math.random() );

		},

		degToRad: function ( degrees ) {

			return degrees * _Math.DEG2RAD;

		},

		radToDeg: function ( radians ) {

			return radians * _Math.RAD2DEG;

		},

		isPowerOfTwo: function ( value ) {

			return ( value & ( value - 1 ) ) === 0 && value !== 0;

		},

		ceilPowerOfTwo: function ( value ) {

			return Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) );

		},

		floorPowerOfTwo: function ( value ) {

			return Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) );

		}

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author philogb / http://blog.thejit.org/
	 * @author egraether / http://egraether.com/
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 */

	function Vector2( x, y ) {

		this.x = x || 0;
		this.y = y || 0;

	}

	Object.defineProperties( Vector2.prototype, {

		"width": {

			get: function () {

				return this.x;

			},

			set: function ( value ) {

				this.x = value;

			}

		},

		"height": {

			get: function () {

				return this.y;

			},

			set: function ( value ) {

				this.y = value;

			}

		}

	} );

	Object.assign( Vector2.prototype, {

		isVector2: true,

		set: function ( x, y ) {

			this.x = x;
			this.y = y;

			return this;

		},

		setScalar: function ( scalar ) {

			this.x = scalar;
			this.y = scalar;

			return this;

		},

		setX: function ( x ) {

			this.x = x;

			return this;

		},

		setY: function ( y ) {

			this.y = y;

			return this;

		},

		setComponent: function ( index, value ) {

			switch ( index ) {

				case 0: this.x = value; break;
				case 1: this.y = value; break;
				default: throw new Error( 'index is out of range: ' + index );

			}

			return this;

		},

		getComponent: function ( index ) {

			switch ( index ) {

				case 0: return this.x;
				case 1: return this.y;
				default: throw new Error( 'index is out of range: ' + index );

			}

		},

		clone: function () {

			return new this.constructor( this.x, this.y );

		},

		copy: function ( v ) {

			this.x = v.x;
			this.y = v.y;

			return this;

		},

		add: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
				return this.addVectors( v, w );

			}

			this.x += v.x;
			this.y += v.y;

			return this;

		},

		addScalar: function ( s ) {

			this.x += s;
			this.y += s;

			return this;

		},

		addVectors: function ( a, b ) {

			this.x = a.x + b.x;
			this.y = a.y + b.y;

			return this;

		},

		addScaledVector: function ( v, s ) {

			this.x += v.x * s;
			this.y += v.y * s;

			return this;

		},

		sub: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
				return this.subVectors( v, w );

			}

			this.x -= v.x;
			this.y -= v.y;

			return this;

		},

		subScalar: function ( s ) {

			this.x -= s;
			this.y -= s;

			return this;

		},

		subVectors: function ( a, b ) {

			this.x = a.x - b.x;
			this.y = a.y - b.y;

			return this;

		},

		multiply: function ( v ) {

			this.x *= v.x;
			this.y *= v.y;

			return this;

		},

		multiplyScalar: function ( scalar ) {

			this.x *= scalar;
			this.y *= scalar;

			return this;

		},

		divide: function ( v ) {

			this.x /= v.x;
			this.y /= v.y;

			return this;

		},

		divideScalar: function ( scalar ) {

			return this.multiplyScalar( 1 / scalar );

		},

		applyMatrix3: function ( m ) {

			var x = this.x, y = this.y;
			var e = m.elements;

			this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ];
			this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ];

			return this;

		},

		min: function ( v ) {

			this.x = Math.min( this.x, v.x );
			this.y = Math.min( this.y, v.y );

			return this;

		},

		max: function ( v ) {

			this.x = Math.max( this.x, v.x );
			this.y = Math.max( this.y, v.y );

			return this;

		},

		clamp: function ( min, max ) {

			// assumes min < max, componentwise

			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
			this.y = Math.max( min.y, Math.min( max.y, this.y ) );

			return this;

		},

		clampScalar: function () {

			var min = new Vector2();
			var max = new Vector2();

			return function clampScalar( minVal, maxVal ) {

				min.set( minVal, minVal );
				max.set( maxVal, maxVal );

				return this.clamp( min, max );

			};

		}(),

		clampLength: function ( min, max ) {

			var length = this.length();

			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

		},

		floor: function () {

			this.x = Math.floor( this.x );
			this.y = Math.floor( this.y );

			return this;

		},

		ceil: function () {

			this.x = Math.ceil( this.x );
			this.y = Math.ceil( this.y );

			return this;

		},

		round: function () {

			this.x = Math.round( this.x );
			this.y = Math.round( this.y );

			return this;

		},

		roundToZero: function () {

			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );

			return this;

		},

		negate: function () {

			this.x = - this.x;
			this.y = - this.y;

			return this;

		},

		dot: function ( v ) {

			return this.x * v.x + this.y * v.y;

		},

		cross: function ( v ) {

			return this.x * v.y - this.y * v.x;

		},

		lengthSq: function () {

			return this.x * this.x + this.y * this.y;

		},

		length: function () {

			return Math.sqrt( this.x * this.x + this.y * this.y );

		},

		manhattanLength: function () {

			return Math.abs( this.x ) + Math.abs( this.y );

		},

		normalize: function () {

			return this.divideScalar( this.length() || 1 );

		},

		angle: function () {

			// computes the angle in radians with respect to the positive x-axis

			var angle = Math.atan2( this.y, this.x );

			if ( angle < 0 ) angle += 2 * Math.PI;

			return angle;

		},

		distanceTo: function ( v ) {

			return Math.sqrt( this.distanceToSquared( v ) );

		},

		distanceToSquared: function ( v ) {

			var dx = this.x - v.x, dy = this.y - v.y;
			return dx * dx + dy * dy;

		},

		manhattanDistanceTo: function ( v ) {

			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );

		},

		setLength: function ( length ) {

			return this.normalize().multiplyScalar( length );

		},

		lerp: function ( v, alpha ) {

			this.x += ( v.x - this.x ) * alpha;
			this.y += ( v.y - this.y ) * alpha;

			return this;

		},

		lerpVectors: function ( v1, v2, alpha ) {

			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );

		},

		equals: function ( v ) {

			return ( ( v.x === this.x ) && ( v.y === this.y ) );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this.x = array[ offset ];
			this.y = array[ offset + 1 ];

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this.x;
			array[ offset + 1 ] = this.y;

			return array;

		},

		fromBufferAttribute: function ( attribute, index, offset ) {

			if ( offset !== undefined ) {

				console.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' );

			}

			this.x = attribute.getX( index );
			this.y = attribute.getY( index );

			return this;

		},

		rotateAround: function ( center, angle ) {

			var c = Math.cos( angle ), s = Math.sin( angle );

			var x = this.x - center.x;
			var y = this.y - center.y;

			this.x = x * c - y * s + center.x;
			this.y = x * s + y * c + center.y;

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author supereggbert / http://www.paulbrunt.co.uk/
	 * @author philogb / http://blog.thejit.org/
	 * @author jordi_ros / http://plattsoft.com
	 * @author D1plo1d / http://github.com/D1plo1d
	 * @author alteredq / http://alteredqualia.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author timknip / http://www.floorplanner.com/
	 * @author bhouston / http://clara.io
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function Matrix4() {

		this.elements = [

			1, 0, 0, 0,
			0, 1, 0, 0,
			0, 0, 1, 0,
			0, 0, 0, 1

		];

		if ( arguments.length > 0 ) {

			console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );

		}

	}

	Object.assign( Matrix4.prototype, {

		isMatrix4: true,

		set: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {

			var te = this.elements;

			te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;
			te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;
			te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;
			te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;

			return this;

		},

		identity: function () {

			this.set(

				1, 0, 0, 0,
				0, 1, 0, 0,
				0, 0, 1, 0,
				0, 0, 0, 1

			);

			return this;

		},

		clone: function () {

			return new Matrix4().fromArray( this.elements );

		},

		copy: function ( m ) {

			var te = this.elements;
			var me = m.elements;

			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];
			te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];
			te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];
			te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];

			return this;

		},

		copyPosition: function ( m ) {

			var te = this.elements, me = m.elements;

			te[ 12 ] = me[ 12 ];
			te[ 13 ] = me[ 13 ];
			te[ 14 ] = me[ 14 ];

			return this;

		},

		extractBasis: function ( xAxis, yAxis, zAxis ) {

			xAxis.setFromMatrixColumn( this, 0 );
			yAxis.setFromMatrixColumn( this, 1 );
			zAxis.setFromMatrixColumn( this, 2 );

			return this;

		},

		makeBasis: function ( xAxis, yAxis, zAxis ) {

			this.set(
				xAxis.x, yAxis.x, zAxis.x, 0,
				xAxis.y, yAxis.y, zAxis.y, 0,
				xAxis.z, yAxis.z, zAxis.z, 0,
				0, 0, 0, 1
			);

			return this;

		},

		extractRotation: function () {

			var v1 = new Vector3();

			return function extractRotation( m ) {

				// this method does not support reflection matrices

				var te = this.elements;
				var me = m.elements;

				var scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();
				var scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();
				var scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();

				te[ 0 ] = me[ 0 ] * scaleX;
				te[ 1 ] = me[ 1 ] * scaleX;
				te[ 2 ] = me[ 2 ] * scaleX;
				te[ 3 ] = 0;

				te[ 4 ] = me[ 4 ] * scaleY;
				te[ 5 ] = me[ 5 ] * scaleY;
				te[ 6 ] = me[ 6 ] * scaleY;
				te[ 7 ] = 0;

				te[ 8 ] = me[ 8 ] * scaleZ;
				te[ 9 ] = me[ 9 ] * scaleZ;
				te[ 10 ] = me[ 10 ] * scaleZ;
				te[ 11 ] = 0;

				te[ 12 ] = 0;
				te[ 13 ] = 0;
				te[ 14 ] = 0;
				te[ 15 ] = 1;

				return this;

			};

		}(),

		makeRotationFromEuler: function ( euler ) {

			if ( ! ( euler && euler.isEuler ) ) {

				console.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );

			}

			var te = this.elements;

			var x = euler.x, y = euler.y, z = euler.z;
			var a = Math.cos( x ), b = Math.sin( x );
			var c = Math.cos( y ), d = Math.sin( y );
			var e = Math.cos( z ), f = Math.sin( z );

			if ( euler.order === 'XYZ' ) {

				var ae = a * e, af = a * f, be = b * e, bf = b * f;

				te[ 0 ] = c * e;
				te[ 4 ] = - c * f;
				te[ 8 ] = d;

				te[ 1 ] = af + be * d;
				te[ 5 ] = ae - bf * d;
				te[ 9 ] = - b * c;

				te[ 2 ] = bf - ae * d;
				te[ 6 ] = be + af * d;
				te[ 10 ] = a * c;

			} else if ( euler.order === 'YXZ' ) {

				var ce = c * e, cf = c * f, de = d * e, df = d * f;

				te[ 0 ] = ce + df * b;
				te[ 4 ] = de * b - cf;
				te[ 8 ] = a * d;

				te[ 1 ] = a * f;
				te[ 5 ] = a * e;
				te[ 9 ] = - b;

				te[ 2 ] = cf * b - de;
				te[ 6 ] = df + ce * b;
				te[ 10 ] = a * c;

			} else if ( euler.order === 'ZXY' ) {

				var ce = c * e, cf = c * f, de = d * e, df = d * f;

				te[ 0 ] = ce - df * b;
				te[ 4 ] = - a * f;
				te[ 8 ] = de + cf * b;

				te[ 1 ] = cf + de * b;
				te[ 5 ] = a * e;
				te[ 9 ] = df - ce * b;

				te[ 2 ] = - a * d;
				te[ 6 ] = b;
				te[ 10 ] = a * c;

			} else if ( euler.order === 'ZYX' ) {

				var ae = a * e, af = a * f, be = b * e, bf = b * f;

				te[ 0 ] = c * e;
				te[ 4 ] = be * d - af;
				te[ 8 ] = ae * d + bf;

				te[ 1 ] = c * f;
				te[ 5 ] = bf * d + ae;
				te[ 9 ] = af * d - be;

				te[ 2 ] = - d;
				te[ 6 ] = b * c;
				te[ 10 ] = a * c;

			} else if ( euler.order === 'YZX' ) {

				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;

				te[ 0 ] = c * e;
				te[ 4 ] = bd - ac * f;
				te[ 8 ] = bc * f + ad;

				te[ 1 ] = f;
				te[ 5 ] = a * e;
				te[ 9 ] = - b * e;

				te[ 2 ] = - d * e;
				te[ 6 ] = ad * f + bc;
				te[ 10 ] = ac - bd * f;

			} else if ( euler.order === 'XZY' ) {

				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;

				te[ 0 ] = c * e;
				te[ 4 ] = - f;
				te[ 8 ] = d * e;

				te[ 1 ] = ac * f + bd;
				te[ 5 ] = a * e;
				te[ 9 ] = ad * f - bc;

				te[ 2 ] = bc * f - ad;
				te[ 6 ] = b * e;
				te[ 10 ] = bd * f + ac;

			}

			// bottom row
			te[ 3 ] = 0;
			te[ 7 ] = 0;
			te[ 11 ] = 0;

			// last column
			te[ 12 ] = 0;
			te[ 13 ] = 0;
			te[ 14 ] = 0;
			te[ 15 ] = 1;

			return this;

		},

		makeRotationFromQuaternion: function () {

			var zero = new Vector3( 0, 0, 0 );
			var one = new Vector3( 1, 1, 1 );

			return function makeRotationFromQuaternion( q ) {

				return this.compose( zero, q, one );

			};

		}(),

		lookAt: function () {

			var x = new Vector3();
			var y = new Vector3();
			var z = new Vector3();

			return function lookAt( eye, target, up ) {

				var te = this.elements;

				z.subVectors( eye, target );

				if ( z.lengthSq() === 0 ) {

					// eye and target are in the same position

					z.z = 1;

				}

				z.normalize();
				x.crossVectors( up, z );

				if ( x.lengthSq() === 0 ) {

					// up and z are parallel

					if ( Math.abs( up.z ) === 1 ) {

						z.x += 0.0001;

					} else {

						z.z += 0.0001;

					}

					z.normalize();
					x.crossVectors( up, z );

				}

				x.normalize();
				y.crossVectors( z, x );

				te[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;
				te[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;
				te[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;

				return this;

			};

		}(),

		multiply: function ( m, n ) {

			if ( n !== undefined ) {

				console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );
				return this.multiplyMatrices( m, n );

			}

			return this.multiplyMatrices( this, m );

		},

		premultiply: function ( m ) {

			return this.multiplyMatrices( m, this );

		},

		multiplyMatrices: function ( a, b ) {

			var ae = a.elements;
			var be = b.elements;
			var te = this.elements;

			var a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];
			var a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];
			var a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];
			var a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];

			var b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];
			var b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];
			var b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];
			var b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];

			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
			te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
			te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
			te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;

			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
			te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
			te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
			te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;

			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
			te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
			te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
			te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;

			te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
			te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
			te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
			te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;

			return this;

		},

		multiplyScalar: function ( s ) {

			var te = this.elements;

			te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;
			te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;
			te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;
			te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;

			return this;

		},

		applyToBufferAttribute: function () {

			var v1 = new Vector3();

			return function applyToBufferAttribute( attribute ) {

				for ( var i = 0, l = attribute.count; i < l; i ++ ) {

					v1.x = attribute.getX( i );
					v1.y = attribute.getY( i );
					v1.z = attribute.getZ( i );

					v1.applyMatrix4( this );

					attribute.setXYZ( i, v1.x, v1.y, v1.z );

				}

				return attribute;

			};

		}(),

		determinant: function () {

			var te = this.elements;

			var n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];
			var n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];
			var n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];
			var n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];

			//TODO: make this more efficient
			//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )

			return (
				n41 * (
					+ n14 * n23 * n32
					 - n13 * n24 * n32
					 - n14 * n22 * n33
					 + n12 * n24 * n33
					 + n13 * n22 * n34
					 - n12 * n23 * n34
				) +
				n42 * (
					+ n11 * n23 * n34
					 - n11 * n24 * n33
					 + n14 * n21 * n33
					 - n13 * n21 * n34
					 + n13 * n24 * n31
					 - n14 * n23 * n31
				) +
				n43 * (
					+ n11 * n24 * n32
					 - n11 * n22 * n34
					 - n14 * n21 * n32
					 + n12 * n21 * n34
					 + n14 * n22 * n31
					 - n12 * n24 * n31
				) +
				n44 * (
					- n13 * n22 * n31
					 - n11 * n23 * n32
					 + n11 * n22 * n33
					 + n13 * n21 * n32
					 - n12 * n21 * n33
					 + n12 * n23 * n31
				)

			);

		},

		transpose: function () {

			var te = this.elements;
			var tmp;

			tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;
			tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;
			tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;

			tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;
			tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;
			tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;

			return this;

		},

		setPosition: function ( v ) {

			var te = this.elements;

			te[ 12 ] = v.x;
			te[ 13 ] = v.y;
			te[ 14 ] = v.z;

			return this;

		},

		getInverse: function ( m, throwOnDegenerate ) {

			// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
			var te = this.elements,
				me = m.elements,

				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],
				n12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],
				n13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],
				n14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],

				t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
				t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
				t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
				t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;

			var det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;

			if ( det === 0 ) {

				var msg = "THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0";

				if ( throwOnDegenerate === true ) {

					throw new Error( msg );

				} else {

					console.warn( msg );

				}

				return this.identity();

			}

			var detInv = 1 / det;

			te[ 0 ] = t11 * detInv;
			te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;
			te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;
			te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;

			te[ 4 ] = t12 * detInv;
			te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;
			te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;
			te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;

			te[ 8 ] = t13 * detInv;
			te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;
			te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;
			te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;

			te[ 12 ] = t14 * detInv;
			te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;
			te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;
			te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;

			return this;

		},

		scale: function ( v ) {

			var te = this.elements;
			var x = v.x, y = v.y, z = v.z;

			te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;
			te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;
			te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;
			te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;

			return this;

		},

		getMaxScaleOnAxis: function () {

			var te = this.elements;

			var scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];
			var scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];
			var scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];

			return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );

		},

		makeTranslation: function ( x, y, z ) {

			this.set(

				1, 0, 0, x,
				0, 1, 0, y,
				0, 0, 1, z,
				0, 0, 0, 1

			);

			return this;

		},

		makeRotationX: function ( theta ) {

			var c = Math.cos( theta ), s = Math.sin( theta );

			this.set(

				1, 0, 0, 0,
				0, c, - s, 0,
				0, s, c, 0,
				0, 0, 0, 1

			);

			return this;

		},

		makeRotationY: function ( theta ) {

			var c = Math.cos( theta ), s = Math.sin( theta );

			this.set(

				 c, 0, s, 0,
				 0, 1, 0, 0,
				- s, 0, c, 0,
				 0, 0, 0, 1

			);

			return this;

		},

		makeRotationZ: function ( theta ) {

			var c = Math.cos( theta ), s = Math.sin( theta );

			this.set(

				c, - s, 0, 0,
				s, c, 0, 0,
				0, 0, 1, 0,
				0, 0, 0, 1

			);

			return this;

		},

		makeRotationAxis: function ( axis, angle ) {

			// Based on http://www.gamedev.net/reference/articles/article1199.asp

			var c = Math.cos( angle );
			var s = Math.sin( angle );
			var t = 1 - c;
			var x = axis.x, y = axis.y, z = axis.z;
			var tx = t * x, ty = t * y;

			this.set(

				tx * x + c, tx * y - s * z, tx * z + s * y, 0,
				tx * y + s * z, ty * y + c, ty * z - s * x, 0,
				tx * z - s * y, ty * z + s * x, t * z * z + c, 0,
				0, 0, 0, 1

			);

			 return this;

		},

		makeScale: function ( x, y, z ) {

			this.set(

				x, 0, 0, 0,
				0, y, 0, 0,
				0, 0, z, 0,
				0, 0, 0, 1

			);

			return this;

		},

		makeShear: function ( x, y, z ) {

			this.set(

				1, y, z, 0,
				x, 1, z, 0,
				x, y, 1, 0,
				0, 0, 0, 1

			);

			return this;

		},

		compose: function ( position, quaternion, scale ) {

			var te = this.elements;

			var x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w;
			var x2 = x + x,	y2 = y + y, z2 = z + z;
			var xx = x * x2, xy = x * y2, xz = x * z2;
			var yy = y * y2, yz = y * z2, zz = z * z2;
			var wx = w * x2, wy = w * y2, wz = w * z2;

			var sx = scale.x, sy = scale.y, sz = scale.z;

		        te[ 0 ] = ( 1 - ( yy + zz ) ) * sx;
		        te[ 1 ] = ( xy + wz ) * sx;
		        te[ 2 ] = ( xz - wy ) * sx;
		        te[ 3 ] = 0;

		        te[ 4 ] = ( xy - wz ) * sy;
		        te[ 5 ] = ( 1 - ( xx + zz ) ) * sy;
		        te[ 6 ] = ( yz + wx ) * sy;
		        te[ 7 ] = 0;

		        te[ 8 ] = ( xz + wy ) * sz;
		        te[ 9 ] = ( yz - wx ) * sz;
		        te[ 10 ] = ( 1 - ( xx + yy ) ) * sz;
		        te[ 11 ] = 0;

		        te[ 12 ] = position.x;
		        te[ 13 ] = position.y;
		        te[ 14 ] = position.z;
		        te[ 15 ] = 1;

		        return this;

		},

		decompose: function () {

			var vector = new Vector3();
			var matrix = new Matrix4();

			return function decompose( position, quaternion, scale ) {

				var te = this.elements;

				var sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();
				var sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();
				var sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();

				// if determine is negative, we need to invert one scale
				var det = this.determinant();
				if ( det < 0 ) sx = - sx;

				position.x = te[ 12 ];
				position.y = te[ 13 ];
				position.z = te[ 14 ];

				// scale the rotation part
				matrix.copy( this );

				var invSX = 1 / sx;
				var invSY = 1 / sy;
				var invSZ = 1 / sz;

				matrix.elements[ 0 ] *= invSX;
				matrix.elements[ 1 ] *= invSX;
				matrix.elements[ 2 ] *= invSX;

				matrix.elements[ 4 ] *= invSY;
				matrix.elements[ 5 ] *= invSY;
				matrix.elements[ 6 ] *= invSY;

				matrix.elements[ 8 ] *= invSZ;
				matrix.elements[ 9 ] *= invSZ;
				matrix.elements[ 10 ] *= invSZ;

				quaternion.setFromRotationMatrix( matrix );

				scale.x = sx;
				scale.y = sy;
				scale.z = sz;

				return this;

			};

		}(),

		makePerspective: function ( left, right, top, bottom, near, far ) {

			if ( far === undefined ) {

				console.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' );

			}

			var te = this.elements;
			var x = 2 * near / ( right - left );
			var y = 2 * near / ( top - bottom );

			var a = ( right + left ) / ( right - left );
			var b = ( top + bottom ) / ( top - bottom );
			var c = - ( far + near ) / ( far - near );
			var d = - 2 * far * near / ( far - near );

			te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;
			te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;
			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;
			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;

			return this;

		},

		makeOrthographic: function ( left, right, top, bottom, near, far ) {

			var te = this.elements;
			var w = 1.0 / ( right - left );
			var h = 1.0 / ( top - bottom );
			var p = 1.0 / ( far - near );

			var x = ( right + left ) * w;
			var y = ( top + bottom ) * h;
			var z = ( far + near ) * p;

			te[ 0 ] = 2 * w;	te[ 4 ] = 0;	te[ 8 ] = 0;	te[ 12 ] = - x;
			te[ 1 ] = 0;	te[ 5 ] = 2 * h;	te[ 9 ] = 0;	te[ 13 ] = - y;
			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 * p;	te[ 14 ] = - z;
			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;	te[ 15 ] = 1;

			return this;

		},

		equals: function ( matrix ) {

			var te = this.elements;
			var me = matrix.elements;

			for ( var i = 0; i < 16; i ++ ) {

				if ( te[ i ] !== me[ i ] ) return false;

			}

			return true;

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			for ( var i = 0; i < 16; i ++ ) {

				this.elements[ i ] = array[ i + offset ];

			}

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			var te = this.elements;

			array[ offset ] = te[ 0 ];
			array[ offset + 1 ] = te[ 1 ];
			array[ offset + 2 ] = te[ 2 ];
			array[ offset + 3 ] = te[ 3 ];

			array[ offset + 4 ] = te[ 4 ];
			array[ offset + 5 ] = te[ 5 ];
			array[ offset + 6 ] = te[ 6 ];
			array[ offset + 7 ] = te[ 7 ];

			array[ offset + 8 ] = te[ 8 ];
			array[ offset + 9 ] = te[ 9 ];
			array[ offset + 10 ] = te[ 10 ];
			array[ offset + 11 ] = te[ 11 ];

			array[ offset + 12 ] = te[ 12 ];
			array[ offset + 13 ] = te[ 13 ];
			array[ offset + 14 ] = te[ 14 ];
			array[ offset + 15 ] = te[ 15 ];

			return array;

		}

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author WestLangley / http://github.com/WestLangley
	 * @author bhouston / http://clara.io
	 */

	function Quaternion( x, y, z, w ) {

		this._x = x || 0;
		this._y = y || 0;
		this._z = z || 0;
		this._w = ( w !== undefined ) ? w : 1;

	}

	Object.assign( Quaternion, {

		slerp: function ( qa, qb, qm, t ) {

			return qm.copy( qa ).slerp( qb, t );

		},

		slerpFlat: function ( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {

			// fuzz-free, array-based Quaternion SLERP operation

			var x0 = src0[ srcOffset0 + 0 ],
				y0 = src0[ srcOffset0 + 1 ],
				z0 = src0[ srcOffset0 + 2 ],
				w0 = src0[ srcOffset0 + 3 ],

				x1 = src1[ srcOffset1 + 0 ],
				y1 = src1[ srcOffset1 + 1 ],
				z1 = src1[ srcOffset1 + 2 ],
				w1 = src1[ srcOffset1 + 3 ];

			if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {

				var s = 1 - t,

					cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,

					dir = ( cos >= 0 ? 1 : - 1 ),
					sqrSin = 1 - cos * cos;

				// Skip the Slerp for tiny steps to avoid numeric problems:
				if ( sqrSin > Number.EPSILON ) {

					var sin = Math.sqrt( sqrSin ),
						len = Math.atan2( sin, cos * dir );

					s = Math.sin( s * len ) / sin;
					t = Math.sin( t * len ) / sin;

				}

				var tDir = t * dir;

				x0 = x0 * s + x1 * tDir;
				y0 = y0 * s + y1 * tDir;
				z0 = z0 * s + z1 * tDir;
				w0 = w0 * s + w1 * tDir;

				// Normalize in case we just did a lerp:
				if ( s === 1 - t ) {

					var f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );

					x0 *= f;
					y0 *= f;
					z0 *= f;
					w0 *= f;

				}

			}

			dst[ dstOffset ] = x0;
			dst[ dstOffset + 1 ] = y0;
			dst[ dstOffset + 2 ] = z0;
			dst[ dstOffset + 3 ] = w0;

		}

	} );

	Object.defineProperties( Quaternion.prototype, {

		x: {

			get: function () {

				return this._x;

			},

			set: function ( value ) {

				this._x = value;
				this.onChangeCallback();

			}

		},

		y: {

			get: function () {

				return this._y;

			},

			set: function ( value ) {

				this._y = value;
				this.onChangeCallback();

			}

		},

		z: {

			get: function () {

				return this._z;

			},

			set: function ( value ) {

				this._z = value;
				this.onChangeCallback();

			}

		},

		w: {

			get: function () {

				return this._w;

			},

			set: function ( value ) {

				this._w = value;
				this.onChangeCallback();

			}

		}

	} );

	Object.assign( Quaternion.prototype, {

		set: function ( x, y, z, w ) {

			this._x = x;
			this._y = y;
			this._z = z;
			this._w = w;

			this.onChangeCallback();

			return this;

		},

		clone: function () {

			return new this.constructor( this._x, this._y, this._z, this._w );

		},

		copy: function ( quaternion ) {

			this._x = quaternion.x;
			this._y = quaternion.y;
			this._z = quaternion.z;
			this._w = quaternion.w;

			this.onChangeCallback();

			return this;

		},

		setFromEuler: function ( euler, update ) {

			if ( ! ( euler && euler.isEuler ) ) {

				throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );

			}

			var x = euler._x, y = euler._y, z = euler._z, order = euler.order;

			// http://www.mathworks.com/matlabcentral/fileexchange/
			// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
			//	content/SpinCalc.m

			var cos = Math.cos;
			var sin = Math.sin;

			var c1 = cos( x / 2 );
			var c2 = cos( y / 2 );
			var c3 = cos( z / 2 );

			var s1 = sin( x / 2 );
			var s2 = sin( y / 2 );
			var s3 = sin( z / 2 );

			if ( order === 'XYZ' ) {

				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;

			} else if ( order === 'YXZ' ) {

				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;

			} else if ( order === 'ZXY' ) {

				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;

			} else if ( order === 'ZYX' ) {

				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;

			} else if ( order === 'YZX' ) {

				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;

			} else if ( order === 'XZY' ) {

				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;

			}

			if ( update !== false ) this.onChangeCallback();

			return this;

		},

		setFromAxisAngle: function ( axis, angle ) {

			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm

			// assumes axis is normalized

			var halfAngle = angle / 2, s = Math.sin( halfAngle );

			this._x = axis.x * s;
			this._y = axis.y * s;
			this._z = axis.z * s;
			this._w = Math.cos( halfAngle );

			this.onChangeCallback();

			return this;

		},

		setFromRotationMatrix: function ( m ) {

			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm

			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

			var te = m.elements,

				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],

				trace = m11 + m22 + m33,
				s;

			if ( trace > 0 ) {

				s = 0.5 / Math.sqrt( trace + 1.0 );

				this._w = 0.25 / s;
				this._x = ( m32 - m23 ) * s;
				this._y = ( m13 - m31 ) * s;
				this._z = ( m21 - m12 ) * s;

			} else if ( m11 > m22 && m11 > m33 ) {

				s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );

				this._w = ( m32 - m23 ) / s;
				this._x = 0.25 * s;
				this._y = ( m12 + m21 ) / s;
				this._z = ( m13 + m31 ) / s;

			} else if ( m22 > m33 ) {

				s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );

				this._w = ( m13 - m31 ) / s;
				this._x = ( m12 + m21 ) / s;
				this._y = 0.25 * s;
				this._z = ( m23 + m32 ) / s;

			} else {

				s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );

				this._w = ( m21 - m12 ) / s;
				this._x = ( m13 + m31 ) / s;
				this._y = ( m23 + m32 ) / s;
				this._z = 0.25 * s;

			}

			this.onChangeCallback();

			return this;

		},

		setFromUnitVectors: function () {

			// assumes direction vectors vFrom and vTo are normalized

			var v1 = new Vector3();
			var r;

			var EPS = 0.000001;

			return function setFromUnitVectors( vFrom, vTo ) {

				if ( v1 === undefined ) v1 = new Vector3();

				r = vFrom.dot( vTo ) + 1;

				if ( r < EPS ) {

					r = 0;

					if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {

						v1.set( - vFrom.y, vFrom.x, 0 );

					} else {

						v1.set( 0, - vFrom.z, vFrom.y );

					}

				} else {

					v1.crossVectors( vFrom, vTo );

				}

				this._x = v1.x;
				this._y = v1.y;
				this._z = v1.z;
				this._w = r;

				return this.normalize();

			};

		}(),

		angleTo: function ( q ) {

			return 2 * Math.acos( Math.abs( _Math.clamp( this.dot( q ), - 1, 1 ) ) );

		},

		rotateTowards: function ( q, step ) {

			var angle = this.angleTo( q );

			if ( angle === 0 ) return this;

			var t = Math.min( 1, step / angle );

			this.slerp( q, t );

			return this;

		},

		inverse: function () {

			// quaternion is assumed to have unit length

			return this.conjugate();

		},

		conjugate: function () {

			this._x *= - 1;
			this._y *= - 1;
			this._z *= - 1;

			this.onChangeCallback();

			return this;

		},

		dot: function ( v ) {

			return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;

		},

		lengthSq: function () {

			return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;

		},

		length: function () {

			return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );

		},

		normalize: function () {

			var l = this.length();

			if ( l === 0 ) {

				this._x = 0;
				this._y = 0;
				this._z = 0;
				this._w = 1;

			} else {

				l = 1 / l;

				this._x = this._x * l;
				this._y = this._y * l;
				this._z = this._z * l;
				this._w = this._w * l;

			}

			this.onChangeCallback();

			return this;

		},

		multiply: function ( q, p ) {

			if ( p !== undefined ) {

				console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
				return this.multiplyQuaternions( q, p );

			}

			return this.multiplyQuaternions( this, q );

		},

		premultiply: function ( q ) {

			return this.multiplyQuaternions( q, this );

		},

		multiplyQuaternions: function ( a, b ) {

			// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm

			var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
			var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;

			this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
			this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
			this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
			this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;

			this.onChangeCallback();

			return this;

		},

		slerp: function ( qb, t ) {

			if ( t === 0 ) return this;
			if ( t === 1 ) return this.copy( qb );

			var x = this._x, y = this._y, z = this._z, w = this._w;

			// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/

			var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;

			if ( cosHalfTheta < 0 ) {

				this._w = - qb._w;
				this._x = - qb._x;
				this._y = - qb._y;
				this._z = - qb._z;

				cosHalfTheta = - cosHalfTheta;

			} else {

				this.copy( qb );

			}

			if ( cosHalfTheta >= 1.0 ) {

				this._w = w;
				this._x = x;
				this._y = y;
				this._z = z;

				return this;

			}

			var sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;

			if ( sqrSinHalfTheta <= Number.EPSILON ) {

				var s = 1 - t;
				this._w = s * w + t * this._w;
				this._x = s * x + t * this._x;
				this._y = s * y + t * this._y;
				this._z = s * z + t * this._z;

				return this.normalize();

			}

			var sinHalfTheta = Math.sqrt( sqrSinHalfTheta );
			var halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );
			var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
				ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;

			this._w = ( w * ratioA + this._w * ratioB );
			this._x = ( x * ratioA + this._x * ratioB );
			this._y = ( y * ratioA + this._y * ratioB );
			this._z = ( z * ratioA + this._z * ratioB );

			this.onChangeCallback();

			return this;

		},

		equals: function ( quaternion ) {

			return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this._x = array[ offset ];
			this._y = array[ offset + 1 ];
			this._z = array[ offset + 2 ];
			this._w = array[ offset + 3 ];

			this.onChangeCallback();

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this._x;
			array[ offset + 1 ] = this._y;
			array[ offset + 2 ] = this._z;
			array[ offset + 3 ] = this._w;

			return array;

		},

		onChange: function ( callback ) {

			this.onChangeCallback = callback;

			return this;

		},

		onChangeCallback: function () {}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author kile / http://kile.stravaganza.org/
	 * @author philogb / http://blog.thejit.org/
	 * @author mikael emtinger / http://gomo.se/
	 * @author egraether / http://egraether.com/
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function Vector3( x, y, z ) {

		this.x = x || 0;
		this.y = y || 0;
		this.z = z || 0;

	}

	Object.assign( Vector3.prototype, {

		isVector3: true,

		set: function ( x, y, z ) {

			this.x = x;
			this.y = y;
			this.z = z;

			return this;

		},

		setScalar: function ( scalar ) {

			this.x = scalar;
			this.y = scalar;
			this.z = scalar;

			return this;

		},

		setX: function ( x ) {

			this.x = x;

			return this;

		},

		setY: function ( y ) {

			this.y = y;

			return this;

		},

		setZ: function ( z ) {

			this.z = z;

			return this;

		},

		setComponent: function ( index, value ) {

			switch ( index ) {

				case 0: this.x = value; break;
				case 1: this.y = value; break;
				case 2: this.z = value; break;
				default: throw new Error( 'index is out of range: ' + index );

			}

			return this;

		},

		getComponent: function ( index ) {

			switch ( index ) {

				case 0: return this.x;
				case 1: return this.y;
				case 2: return this.z;
				default: throw new Error( 'index is out of range: ' + index );

			}

		},

		clone: function () {

			return new this.constructor( this.x, this.y, this.z );

		},

		copy: function ( v ) {

			this.x = v.x;
			this.y = v.y;
			this.z = v.z;

			return this;

		},

		add: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
				return this.addVectors( v, w );

			}

			this.x += v.x;
			this.y += v.y;
			this.z += v.z;

			return this;

		},

		addScalar: function ( s ) {

			this.x += s;
			this.y += s;
			this.z += s;

			return this;

		},

		addVectors: function ( a, b ) {

			this.x = a.x + b.x;
			this.y = a.y + b.y;
			this.z = a.z + b.z;

			return this;

		},

		addScaledVector: function ( v, s ) {

			this.x += v.x * s;
			this.y += v.y * s;
			this.z += v.z * s;

			return this;

		},

		sub: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
				return this.subVectors( v, w );

			}

			this.x -= v.x;
			this.y -= v.y;
			this.z -= v.z;

			return this;

		},

		subScalar: function ( s ) {

			this.x -= s;
			this.y -= s;
			this.z -= s;

			return this;

		},

		subVectors: function ( a, b ) {

			this.x = a.x - b.x;
			this.y = a.y - b.y;
			this.z = a.z - b.z;

			return this;

		},

		multiply: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );
				return this.multiplyVectors( v, w );

			}

			this.x *= v.x;
			this.y *= v.y;
			this.z *= v.z;

			return this;

		},

		multiplyScalar: function ( scalar ) {

			this.x *= scalar;
			this.y *= scalar;
			this.z *= scalar;

			return this;

		},

		multiplyVectors: function ( a, b ) {

			this.x = a.x * b.x;
			this.y = a.y * b.y;
			this.z = a.z * b.z;

			return this;

		},

		applyEuler: function () {

			var quaternion = new Quaternion();

			return function applyEuler( euler ) {

				if ( ! ( euler && euler.isEuler ) ) {

					console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );

				}

				return this.applyQuaternion( quaternion.setFromEuler( euler ) );

			};

		}(),

		applyAxisAngle: function () {

			var quaternion = new Quaternion();

			return function applyAxisAngle( axis, angle ) {

				return this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );

			};

		}(),

		applyMatrix3: function ( m ) {

			var x = this.x, y = this.y, z = this.z;
			var e = m.elements;

			this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
			this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
			this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;

			return this;

		},

		applyMatrix4: function ( m ) {

			var x = this.x, y = this.y, z = this.z;
			var e = m.elements;

			var w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );

			this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w;
			this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w;
			this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;

			return this;

		},

		applyQuaternion: function ( q ) {

			var x = this.x, y = this.y, z = this.z;
			var qx = q.x, qy = q.y, qz = q.z, qw = q.w;

			// calculate quat * vector

			var ix = qw * x + qy * z - qz * y;
			var iy = qw * y + qz * x - qx * z;
			var iz = qw * z + qx * y - qy * x;
			var iw = - qx * x - qy * y - qz * z;

			// calculate result * inverse quat

			this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
			this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
			this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;

			return this;

		},

		project: function ( camera ) {

			return this.applyMatrix4( camera.matrixWorldInverse ).applyMatrix4( camera.projectionMatrix );

		},

		unproject: function () {

			var matrix = new Matrix4();

			return function unproject( camera ) {

				return this.applyMatrix4( matrix.getInverse( camera.projectionMatrix ) ).applyMatrix4( camera.matrixWorld );

			};

		}(),

		transformDirection: function ( m ) {

			// input: THREE.Matrix4 affine matrix
			// vector interpreted as a direction

			var x = this.x, y = this.y, z = this.z;
			var e = m.elements;

			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;
			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;
			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;

			return this.normalize();

		},

		divide: function ( v ) {

			this.x /= v.x;
			this.y /= v.y;
			this.z /= v.z;

			return this;

		},

		divideScalar: function ( scalar ) {

			return this.multiplyScalar( 1 / scalar );

		},

		min: function ( v ) {

			this.x = Math.min( this.x, v.x );
			this.y = Math.min( this.y, v.y );
			this.z = Math.min( this.z, v.z );

			return this;

		},

		max: function ( v ) {

			this.x = Math.max( this.x, v.x );
			this.y = Math.max( this.y, v.y );
			this.z = Math.max( this.z, v.z );

			return this;

		},

		clamp: function ( min, max ) {

			// assumes min < max, componentwise

			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
			this.z = Math.max( min.z, Math.min( max.z, this.z ) );

			return this;

		},

		clampScalar: function () {

			var min = new Vector3();
			var max = new Vector3();

			return function clampScalar( minVal, maxVal ) {

				min.set( minVal, minVal, minVal );
				max.set( maxVal, maxVal, maxVal );

				return this.clamp( min, max );

			};

		}(),

		clampLength: function ( min, max ) {

			var length = this.length();

			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

		},

		floor: function () {

			this.x = Math.floor( this.x );
			this.y = Math.floor( this.y );
			this.z = Math.floor( this.z );

			return this;

		},

		ceil: function () {

			this.x = Math.ceil( this.x );
			this.y = Math.ceil( this.y );
			this.z = Math.ceil( this.z );

			return this;

		},

		round: function () {

			this.x = Math.round( this.x );
			this.y = Math.round( this.y );
			this.z = Math.round( this.z );

			return this;

		},

		roundToZero: function () {

			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );

			return this;

		},

		negate: function () {

			this.x = - this.x;
			this.y = - this.y;
			this.z = - this.z;

			return this;

		},

		dot: function ( v ) {

			return this.x * v.x + this.y * v.y + this.z * v.z;

		},

		// TODO lengthSquared?

		lengthSq: function () {

			return this.x * this.x + this.y * this.y + this.z * this.z;

		},

		length: function () {

			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );

		},

		manhattanLength: function () {

			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );

		},

		normalize: function () {

			return this.divideScalar( this.length() || 1 );

		},

		setLength: function ( length ) {

			return this.normalize().multiplyScalar( length );

		},

		lerp: function ( v, alpha ) {

			this.x += ( v.x - this.x ) * alpha;
			this.y += ( v.y - this.y ) * alpha;
			this.z += ( v.z - this.z ) * alpha;

			return this;

		},

		lerpVectors: function ( v1, v2, alpha ) {

			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );

		},

		cross: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );
				return this.crossVectors( v, w );

			}

			return this.crossVectors( this, v );

		},

		crossVectors: function ( a, b ) {

			var ax = a.x, ay = a.y, az = a.z;
			var bx = b.x, by = b.y, bz = b.z;

			this.x = ay * bz - az * by;
			this.y = az * bx - ax * bz;
			this.z = ax * by - ay * bx;

			return this;

		},

		projectOnVector: function ( vector ) {

			var scalar = vector.dot( this ) / vector.lengthSq();

			return this.copy( vector ).multiplyScalar( scalar );

		},

		projectOnPlane: function () {

			var v1 = new Vector3();

			return function projectOnPlane( planeNormal ) {

				v1.copy( this ).projectOnVector( planeNormal );

				return this.sub( v1 );

			};

		}(),

		reflect: function () {

			// reflect incident vector off plane orthogonal to normal
			// normal is assumed to have unit length

			var v1 = new Vector3();

			return function reflect( normal ) {

				return this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );

			};

		}(),

		angleTo: function ( v ) {

			var theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );

			// clamp, to handle numerical problems

			return Math.acos( _Math.clamp( theta, - 1, 1 ) );

		},

		distanceTo: function ( v ) {

			return Math.sqrt( this.distanceToSquared( v ) );

		},

		distanceToSquared: function ( v ) {

			var dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;

			return dx * dx + dy * dy + dz * dz;

		},

		manhattanDistanceTo: function ( v ) {

			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );

		},

		setFromSpherical: function ( s ) {

			var sinPhiRadius = Math.sin( s.phi ) * s.radius;

			this.x = sinPhiRadius * Math.sin( s.theta );
			this.y = Math.cos( s.phi ) * s.radius;
			this.z = sinPhiRadius * Math.cos( s.theta );

			return this;

		},

		setFromCylindrical: function ( c ) {

			this.x = c.radius * Math.sin( c.theta );
			this.y = c.y;
			this.z = c.radius * Math.cos( c.theta );

			return this;

		},

		setFromMatrixPosition: function ( m ) {

			var e = m.elements;

			this.x = e[ 12 ];
			this.y = e[ 13 ];
			this.z = e[ 14 ];

			return this;

		},

		setFromMatrixScale: function ( m ) {

			var sx = this.setFromMatrixColumn( m, 0 ).length();
			var sy = this.setFromMatrixColumn( m, 1 ).length();
			var sz = this.setFromMatrixColumn( m, 2 ).length();

			this.x = sx;
			this.y = sy;
			this.z = sz;

			return this;

		},

		setFromMatrixColumn: function ( m, index ) {

			return this.fromArray( m.elements, index * 4 );

		},

		equals: function ( v ) {

			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this.x = array[ offset ];
			this.y = array[ offset + 1 ];
			this.z = array[ offset + 2 ];

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this.x;
			array[ offset + 1 ] = this.y;
			array[ offset + 2 ] = this.z;

			return array;

		},

		fromBufferAttribute: function ( attribute, index, offset ) {

			if ( offset !== undefined ) {

				console.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' );

			}

			this.x = attribute.getX( index );
			this.y = attribute.getY( index );
			this.z = attribute.getZ( index );

			return this;

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author WestLangley / http://github.com/WestLangley
	 * @author bhouston / http://clara.io
	 * @author tschw
	 */

	function Matrix3() {

		this.elements = [

			1, 0, 0,
			0, 1, 0,
			0, 0, 1

		];

		if ( arguments.length > 0 ) {

			console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );

		}

	}

	Object.assign( Matrix3.prototype, {

		isMatrix3: true,

		set: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {

			var te = this.elements;

			te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;
			te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;
			te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;

			return this;

		},

		identity: function () {

			this.set(

				1, 0, 0,
				0, 1, 0,
				0, 0, 1

			);

			return this;

		},

		clone: function () {

			return new this.constructor().fromArray( this.elements );

		},

		copy: function ( m ) {

			var te = this.elements;
			var me = m.elements;

			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];
			te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];
			te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];

			return this;

		},

		setFromMatrix4: function ( m ) {

			var me = m.elements;

			this.set(

				me[ 0 ], me[ 4 ], me[ 8 ],
				me[ 1 ], me[ 5 ], me[ 9 ],
				me[ 2 ], me[ 6 ], me[ 10 ]

			);

			return this;

		},

		applyToBufferAttribute: function () {

			var v1 = new Vector3();

			return function applyToBufferAttribute( attribute ) {

				for ( var i = 0, l = attribute.count; i < l; i ++ ) {

					v1.x = attribute.getX( i );
					v1.y = attribute.getY( i );
					v1.z = attribute.getZ( i );

					v1.applyMatrix3( this );

					attribute.setXYZ( i, v1.x, v1.y, v1.z );

				}

				return attribute;

			};

		}(),

		multiply: function ( m ) {

			return this.multiplyMatrices( this, m );

		},

		premultiply: function ( m ) {

			return this.multiplyMatrices( m, this );

		},

		multiplyMatrices: function ( a, b ) {

			var ae = a.elements;
			var be = b.elements;
			var te = this.elements;

			var a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];
			var a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];
			var a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];

			var b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];
			var b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];
			var b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];

			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;
			te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;
			te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;

			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;
			te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;
			te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;

			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;
			te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;
			te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;

			return this;

		},

		multiplyScalar: function ( s ) {

			var te = this.elements;

			te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;
			te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;
			te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;

			return this;

		},

		determinant: function () {

			var te = this.elements;

			var a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],
				d = te[ 3 ], e = te[ 4 ], f = te[ 5 ],
				g = te[ 6 ], h = te[ 7 ], i = te[ 8 ];

			return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;

		},

		getInverse: function ( matrix, throwOnDegenerate ) {

			if ( matrix && matrix.isMatrix4 ) {

				console.error( "THREE.Matrix3: .getInverse() no longer takes a Matrix4 argument." );

			}

			var me = matrix.elements,
				te = this.elements,

				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ],
				n12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ],
				n13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ],

				t11 = n33 * n22 - n32 * n23,
				t12 = n32 * n13 - n33 * n12,
				t13 = n23 * n12 - n22 * n13,

				det = n11 * t11 + n21 * t12 + n31 * t13;

			if ( det === 0 ) {

				var msg = "THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0";

				if ( throwOnDegenerate === true ) {

					throw new Error( msg );

				} else {

					console.warn( msg );

				}

				return this.identity();

			}

			var detInv = 1 / det;

			te[ 0 ] = t11 * detInv;
			te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;
			te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;

			te[ 3 ] = t12 * detInv;
			te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;
			te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;

			te[ 6 ] = t13 * detInv;
			te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;
			te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;

			return this;

		},

		transpose: function () {

			var tmp, m = this.elements;

			tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;
			tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;
			tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;

			return this;

		},

		getNormalMatrix: function ( matrix4 ) {

			return this.setFromMatrix4( matrix4 ).getInverse( this ).transpose();

		},

		transposeIntoArray: function ( r ) {

			var m = this.elements;

			r[ 0 ] = m[ 0 ];
			r[ 1 ] = m[ 3 ];
			r[ 2 ] = m[ 6 ];
			r[ 3 ] = m[ 1 ];
			r[ 4 ] = m[ 4 ];
			r[ 5 ] = m[ 7 ];
			r[ 6 ] = m[ 2 ];
			r[ 7 ] = m[ 5 ];
			r[ 8 ] = m[ 8 ];

			return this;

		},

		setUvTransform: function ( tx, ty, sx, sy, rotation, cx, cy ) {

			var c = Math.cos( rotation );
			var s = Math.sin( rotation );

			this.set(
				sx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx,
				- sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty,
				0, 0, 1
			);

		},

		scale: function ( sx, sy ) {

			var te = this.elements;

			te[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx;
			te[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy;

			return this;

		},

		rotate: function ( theta ) {

			var c = Math.cos( theta );
			var s = Math.sin( theta );

			var te = this.elements;

			var a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ];
			var a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ];

			te[ 0 ] = c * a11 + s * a21;
			te[ 3 ] = c * a12 + s * a22;
			te[ 6 ] = c * a13 + s * a23;

			te[ 1 ] = - s * a11 + c * a21;
			te[ 4 ] = - s * a12 + c * a22;
			te[ 7 ] = - s * a13 + c * a23;

			return this;

		},

		translate: function ( tx, ty ) {

			var te = this.elements;

			te[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ];
			te[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ];

			return this;

		},

		equals: function ( matrix ) {

			var te = this.elements;
			var me = matrix.elements;

			for ( var i = 0; i < 9; i ++ ) {

				if ( te[ i ] !== me[ i ] ) return false;

			}

			return true;

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			for ( var i = 0; i < 9; i ++ ) {

				this.elements[ i ] = array[ i + offset ];

			}

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			var te = this.elements;

			array[ offset ] = te[ 0 ];
			array[ offset + 1 ] = te[ 1 ];
			array[ offset + 2 ] = te[ 2 ];

			array[ offset + 3 ] = te[ 3 ];
			array[ offset + 4 ] = te[ 4 ];
			array[ offset + 5 ] = te[ 5 ];

			array[ offset + 6 ] = te[ 6 ];
			array[ offset + 7 ] = te[ 7 ];
			array[ offset + 8 ] = te[ 8 ];

			return array;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author szimek / https://github.com/szimek/
	 */

	var ImageUtils = {

		getDataURL: function ( image ) {

			var canvas;

			if ( image instanceof HTMLCanvasElement ) {

				canvas = image;

			} else {

				if ( typeof OffscreenCanvas !== 'undefined' ) {

					canvas = new OffscreenCanvas( image.width, image.height );

				} else {

					canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
					canvas.width = image.width;
					canvas.height = image.height;

				}

				var context = canvas.getContext( '2d' );

				if ( image instanceof ImageData ) {

					context.putImageData( image, 0, 0 );

				} else {

					context.drawImage( image, 0, 0, image.width, image.height );

				}

			}

			if ( canvas.width > 2048 || canvas.height > 2048 ) {

				return canvas.toDataURL( 'image/jpeg', 0.6 );

			} else {

				return canvas.toDataURL( 'image/png' );

			}

		}

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author szimek / https://github.com/szimek/
	 */

	var textureId = 0;

	function Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {

		Object.defineProperty( this, 'id', { value: textureId ++ } );

		this.uuid = _Math.generateUUID();

		this.name = '';

		this.image = image !== undefined ? image : Texture.DEFAULT_IMAGE;
		this.mipmaps = [];

		this.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING;

		this.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping;
		this.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping;

		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
		this.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter;

		this.anisotropy = anisotropy !== undefined ? anisotropy : 1;

		this.format = format !== undefined ? format : RGBAFormat;
		this.type = type !== undefined ? type : UnsignedByteType;

		this.offset = new Vector2( 0, 0 );
		this.repeat = new Vector2( 1, 1 );
		this.center = new Vector2( 0, 0 );
		this.rotation = 0;

		this.matrixAutoUpdate = true;
		this.matrix = new Matrix3();

		this.generateMipmaps = true;
		this.premultiplyAlpha = false;
		this.flipY = true;
		this.unpackAlignment = 4;	// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)

		// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
		//
		// Also changing the encoding after already used by a Material will not automatically make the Material
		// update.  You need to explicitly call Material.needsUpdate to trigger it to recompile.
		this.encoding = encoding !== undefined ? encoding : LinearEncoding;

		this.version = 0;
		this.onUpdate = null;

	}

	Texture.DEFAULT_IMAGE = undefined;
	Texture.DEFAULT_MAPPING = UVMapping;

	Texture.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {

		constructor: Texture,

		isTexture: true,

		updateMatrix: function () {

			this.matrix.setUvTransform( this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y );

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( source ) {

			this.name = source.name;

			this.image = source.image;
			this.mipmaps = source.mipmaps.slice( 0 );

			this.mapping = source.mapping;

			this.wrapS = source.wrapS;
			this.wrapT = source.wrapT;

			this.magFilter = source.magFilter;
			this.minFilter = source.minFilter;

			this.anisotropy = source.anisotropy;

			this.format = source.format;
			this.type = source.type;

			this.offset.copy( source.offset );
			this.repeat.copy( source.repeat );
			this.center.copy( source.center );
			this.rotation = source.rotation;

			this.matrixAutoUpdate = source.matrixAutoUpdate;
			this.matrix.copy( source.matrix );

			this.generateMipmaps = source.generateMipmaps;
			this.premultiplyAlpha = source.premultiplyAlpha;
			this.flipY = source.flipY;
			this.unpackAlignment = source.unpackAlignment;
			this.encoding = source.encoding;

			return this;

		},

		toJSON: function ( meta ) {

			var isRootObject = ( meta === undefined || typeof meta === 'string' );

			if ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) {

				return meta.textures[ this.uuid ];

			}

			var output = {

				metadata: {
					version: 4.5,
					type: 'Texture',
					generator: 'Texture.toJSON'
				},

				uuid: this.uuid,
				name: this.name,

				mapping: this.mapping,

				repeat: [ this.repeat.x, this.repeat.y ],
				offset: [ this.offset.x, this.offset.y ],
				center: [ this.center.x, this.center.y ],
				rotation: this.rotation,

				wrap: [ this.wrapS, this.wrapT ],

				format: this.format,
				minFilter: this.minFilter,
				magFilter: this.magFilter,
				anisotropy: this.anisotropy,

				flipY: this.flipY

			};

			if ( this.image !== undefined ) {

				// TODO: Move to THREE.Image

				var image = this.image;

				if ( image.uuid === undefined ) {

					image.uuid = _Math.generateUUID(); // UGH

				}

				if ( ! isRootObject && meta.images[ image.uuid ] === undefined ) {

					var url;

					if ( Array.isArray( image ) ) {

						// process array of images e.g. CubeTexture

						url = [];

						for ( var i = 0, l = image.length; i < l; i ++ ) {

							url.push( ImageUtils.getDataURL( image[ i ] ) );

						}

					} else {

						// process single image

						url = ImageUtils.getDataURL( image );

					}

					meta.images[ image.uuid ] = {
						uuid: image.uuid,
						url: url
					};

				}

				output.image = image.uuid;

			}

			if ( ! isRootObject ) {

				meta.textures[ this.uuid ] = output;

			}

			return output;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		},

		transformUv: function ( uv ) {

			if ( this.mapping !== UVMapping ) return;

			uv.applyMatrix3( this.matrix );

			if ( uv.x < 0 || uv.x > 1 ) {

				switch ( this.wrapS ) {

					case RepeatWrapping:

						uv.x = uv.x - Math.floor( uv.x );
						break;

					case ClampToEdgeWrapping:

						uv.x = uv.x < 0 ? 0 : 1;
						break;

					case MirroredRepeatWrapping:

						if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {

							uv.x = Math.ceil( uv.x ) - uv.x;

						} else {

							uv.x = uv.x - Math.floor( uv.x );

						}
						break;

				}

			}

			if ( uv.y < 0 || uv.y > 1 ) {

				switch ( this.wrapT ) {

					case RepeatWrapping:

						uv.y = uv.y - Math.floor( uv.y );
						break;

					case ClampToEdgeWrapping:

						uv.y = uv.y < 0 ? 0 : 1;
						break;

					case MirroredRepeatWrapping:

						if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {

							uv.y = Math.ceil( uv.y ) - uv.y;

						} else {

							uv.y = uv.y - Math.floor( uv.y );

						}
						break;

				}

			}

			if ( this.flipY ) {

				uv.y = 1 - uv.y;

			}

		}

	} );

	Object.defineProperty( Texture.prototype, "needsUpdate", {

		set: function ( value ) {

			if ( value === true ) this.version ++;

		}

	} );

	/**
	 * @author supereggbert / http://www.paulbrunt.co.uk/
	 * @author philogb / http://blog.thejit.org/
	 * @author mikael emtinger / http://gomo.se/
	 * @author egraether / http://egraether.com/
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function Vector4( x, y, z, w ) {

		this.x = x || 0;
		this.y = y || 0;
		this.z = z || 0;
		this.w = ( w !== undefined ) ? w : 1;

	}

	Object.assign( Vector4.prototype, {

		isVector4: true,

		set: function ( x, y, z, w ) {

			this.x = x;
			this.y = y;
			this.z = z;
			this.w = w;

			return this;

		},

		setScalar: function ( scalar ) {

			this.x = scalar;
			this.y = scalar;
			this.z = scalar;
			this.w = scalar;

			return this;

		},

		setX: function ( x ) {

			this.x = x;

			return this;

		},

		setY: function ( y ) {

			this.y = y;

			return this;

		},

		setZ: function ( z ) {

			this.z = z;

			return this;

		},

		setW: function ( w ) {

			this.w = w;

			return this;

		},

		setComponent: function ( index, value ) {

			switch ( index ) {

				case 0: this.x = value; break;
				case 1: this.y = value; break;
				case 2: this.z = value; break;
				case 3: this.w = value; break;
				default: throw new Error( 'index is out of range: ' + index );

			}

			return this;

		},

		getComponent: function ( index ) {

			switch ( index ) {

				case 0: return this.x;
				case 1: return this.y;
				case 2: return this.z;
				case 3: return this.w;
				default: throw new Error( 'index is out of range: ' + index );

			}

		},

		clone: function () {

			return new this.constructor( this.x, this.y, this.z, this.w );

		},

		copy: function ( v ) {

			this.x = v.x;
			this.y = v.y;
			this.z = v.z;
			this.w = ( v.w !== undefined ) ? v.w : 1;

			return this;

		},

		add: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
				return this.addVectors( v, w );

			}

			this.x += v.x;
			this.y += v.y;
			this.z += v.z;
			this.w += v.w;

			return this;

		},

		addScalar: function ( s ) {

			this.x += s;
			this.y += s;
			this.z += s;
			this.w += s;

			return this;

		},

		addVectors: function ( a, b ) {

			this.x = a.x + b.x;
			this.y = a.y + b.y;
			this.z = a.z + b.z;
			this.w = a.w + b.w;

			return this;

		},

		addScaledVector: function ( v, s ) {

			this.x += v.x * s;
			this.y += v.y * s;
			this.z += v.z * s;
			this.w += v.w * s;

			return this;

		},

		sub: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
				return this.subVectors( v, w );

			}

			this.x -= v.x;
			this.y -= v.y;
			this.z -= v.z;
			this.w -= v.w;

			return this;

		},

		subScalar: function ( s ) {

			this.x -= s;
			this.y -= s;
			this.z -= s;
			this.w -= s;

			return this;

		},

		subVectors: function ( a, b ) {

			this.x = a.x - b.x;
			this.y = a.y - b.y;
			this.z = a.z - b.z;
			this.w = a.w - b.w;

			return this;

		},

		multiplyScalar: function ( scalar ) {

			this.x *= scalar;
			this.y *= scalar;
			this.z *= scalar;
			this.w *= scalar;

			return this;

		},

		applyMatrix4: function ( m ) {

			var x = this.x, y = this.y, z = this.z, w = this.w;
			var e = m.elements;

			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;
			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;
			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;
			this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;

			return this;

		},

		divideScalar: function ( scalar ) {

			return this.multiplyScalar( 1 / scalar );

		},

		setAxisAngleFromQuaternion: function ( q ) {

			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm

			// q is assumed to be normalized

			this.w = 2 * Math.acos( q.w );

			var s = Math.sqrt( 1 - q.w * q.w );

			if ( s < 0.0001 ) {

				this.x = 1;
				this.y = 0;
				this.z = 0;

			} else {

				this.x = q.x / s;
				this.y = q.y / s;
				this.z = q.z / s;

			}

			return this;

		},

		setAxisAngleFromRotationMatrix: function ( m ) {

			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm

			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

			var angle, x, y, z,		// variables for result
				epsilon = 0.01,		// margin to allow for rounding errors
				epsilon2 = 0.1,		// margin to distinguish between 0 and 180 degrees

				te = m.elements,

				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

			if ( ( Math.abs( m12 - m21 ) < epsilon ) &&
			     ( Math.abs( m13 - m31 ) < epsilon ) &&
			     ( Math.abs( m23 - m32 ) < epsilon ) ) {

				// singularity found
				// first check for identity matrix which must have +1 for all terms
				// in leading diagonal and zero in other terms

				if ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&
				     ( Math.abs( m13 + m31 ) < epsilon2 ) &&
				     ( Math.abs( m23 + m32 ) < epsilon2 ) &&
				     ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {

					// this singularity is identity matrix so angle = 0

					this.set( 1, 0, 0, 0 );

					return this; // zero angle, arbitrary axis

				}

				// otherwise this singularity is angle = 180

				angle = Math.PI;

				var xx = ( m11 + 1 ) / 2;
				var yy = ( m22 + 1 ) / 2;
				var zz = ( m33 + 1 ) / 2;
				var xy = ( m12 + m21 ) / 4;
				var xz = ( m13 + m31 ) / 4;
				var yz = ( m23 + m32 ) / 4;

				if ( ( xx > yy ) && ( xx > zz ) ) {

					// m11 is the largest diagonal term

					if ( xx < epsilon ) {

						x = 0;
						y = 0.707106781;
						z = 0.707106781;

					} else {

						x = Math.sqrt( xx );
						y = xy / x;
						z = xz / x;

					}

				} else if ( yy > zz ) {

					// m22 is the largest diagonal term

					if ( yy < epsilon ) {

						x = 0.707106781;
						y = 0;
						z = 0.707106781;

					} else {

						y = Math.sqrt( yy );
						x = xy / y;
						z = yz / y;

					}

				} else {

					// m33 is the largest diagonal term so base result on this

					if ( zz < epsilon ) {

						x = 0.707106781;
						y = 0.707106781;
						z = 0;

					} else {

						z = Math.sqrt( zz );
						x = xz / z;
						y = yz / z;

					}

				}

				this.set( x, y, z, angle );

				return this; // return 180 deg rotation

			}

			// as we have reached here there are no singularities so we can handle normally

			var s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +
			                   ( m13 - m31 ) * ( m13 - m31 ) +
			                   ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize

			if ( Math.abs( s ) < 0.001 ) s = 1;

			// prevent divide by zero, should not happen if matrix is orthogonal and should be
			// caught by singularity test above, but I've left it in just in case

			this.x = ( m32 - m23 ) / s;
			this.y = ( m13 - m31 ) / s;
			this.z = ( m21 - m12 ) / s;
			this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );

			return this;

		},

		min: function ( v ) {

			this.x = Math.min( this.x, v.x );
			this.y = Math.min( this.y, v.y );
			this.z = Math.min( this.z, v.z );
			this.w = Math.min( this.w, v.w );

			return this;

		},

		max: function ( v ) {

			this.x = Math.max( this.x, v.x );
			this.y = Math.max( this.y, v.y );
			this.z = Math.max( this.z, v.z );
			this.w = Math.max( this.w, v.w );

			return this;

		},

		clamp: function ( min, max ) {

			// assumes min < max, componentwise

			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
			this.z = Math.max( min.z, Math.min( max.z, this.z ) );
			this.w = Math.max( min.w, Math.min( max.w, this.w ) );

			return this;

		},

		clampScalar: function () {

			var min, max;

			return function clampScalar( minVal, maxVal ) {

				if ( min === undefined ) {

					min = new Vector4();
					max = new Vector4();

				}

				min.set( minVal, minVal, minVal, minVal );
				max.set( maxVal, maxVal, maxVal, maxVal );

				return this.clamp( min, max );

			};

		}(),

		clampLength: function ( min, max ) {

			var length = this.length();

			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

		},

		floor: function () {

			this.x = Math.floor( this.x );
			this.y = Math.floor( this.y );
			this.z = Math.floor( this.z );
			this.w = Math.floor( this.w );

			return this;

		},

		ceil: function () {

			this.x = Math.ceil( this.x );
			this.y = Math.ceil( this.y );
			this.z = Math.ceil( this.z );
			this.w = Math.ceil( this.w );

			return this;

		},

		round: function () {

			this.x = Math.round( this.x );
			this.y = Math.round( this.y );
			this.z = Math.round( this.z );
			this.w = Math.round( this.w );

			return this;

		},

		roundToZero: function () {

			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
			this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );

			return this;

		},

		negate: function () {

			this.x = - this.x;
			this.y = - this.y;
			this.z = - this.z;
			this.w = - this.w;

			return this;

		},

		dot: function ( v ) {

			return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;

		},

		lengthSq: function () {

			return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;

		},

		length: function () {

			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );

		},

		manhattanLength: function () {

			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );

		},

		normalize: function () {

			return this.divideScalar( this.length() || 1 );

		},

		setLength: function ( length ) {

			return this.normalize().multiplyScalar( length );

		},

		lerp: function ( v, alpha ) {

			this.x += ( v.x - this.x ) * alpha;
			this.y += ( v.y - this.y ) * alpha;
			this.z += ( v.z - this.z ) * alpha;
			this.w += ( v.w - this.w ) * alpha;

			return this;

		},

		lerpVectors: function ( v1, v2, alpha ) {

			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );

		},

		equals: function ( v ) {

			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this.x = array[ offset ];
			this.y = array[ offset + 1 ];
			this.z = array[ offset + 2 ];
			this.w = array[ offset + 3 ];

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this.x;
			array[ offset + 1 ] = this.y;
			array[ offset + 2 ] = this.z;
			array[ offset + 3 ] = this.w;

			return array;

		},

		fromBufferAttribute: function ( attribute, index, offset ) {

			if ( offset !== undefined ) {

				console.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' );

			}

			this.x = attribute.getX( index );
			this.y = attribute.getY( index );
			this.z = attribute.getZ( index );
			this.w = attribute.getW( index );

			return this;

		}

	} );

	/**
	 * @author szimek / https://github.com/szimek/
	 * @author alteredq / http://alteredqualia.com/
	 * @author Marius Kintel / https://github.com/kintel
	 */

	/*
	 In options, we can specify:
	 * Texture parameters for an auto-generated target texture
	 * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
	*/
	function WebGLRenderTarget( width, height, options ) {

		this.width = width;
		this.height = height;

		this.scissor = new Vector4( 0, 0, width, height );
		this.scissorTest = false;

		this.viewport = new Vector4( 0, 0, width, height );

		options = options || {};

		if ( options.minFilter === undefined ) options.minFilter = LinearFilter;

		this.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );

		this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : true;

		this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
		this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;
		this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;

	}

	WebGLRenderTarget.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {

		constructor: WebGLRenderTarget,

		isWebGLRenderTarget: true,

		setSize: function ( width, height ) {

			if ( this.width !== width || this.height !== height ) {

				this.width = width;
				this.height = height;

				this.dispose();

			}

			this.viewport.set( 0, 0, width, height );
			this.scissor.set( 0, 0, width, height );

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( source ) {

			this.width = source.width;
			this.height = source.height;

			this.viewport.copy( source.viewport );

			this.texture = source.texture.clone();

			this.depthBuffer = source.depthBuffer;
			this.stencilBuffer = source.stencilBuffer;
			this.depthTexture = source.depthTexture;

			return this;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com
	 */

	function WebGLRenderTargetCube( width, height, options ) {

		WebGLRenderTarget.call( this, width, height, options );

		this.activeCubeFace = 0; // PX 0, NX 1, PY 2, NY 3, PZ 4, NZ 5
		this.activeMipMapLevel = 0;

	}

	WebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype );
	WebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube;

	WebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true;

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {

		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

		this.image = { data: data, width: width, height: height };

		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;

		this.generateMipmaps = false;
		this.flipY = false;
		this.unpackAlignment = 1;

	}

	DataTexture.prototype = Object.create( Texture.prototype );
	DataTexture.prototype.constructor = DataTexture;

	DataTexture.prototype.isDataTexture = true;

	/**
	 * @author bhouston / http://clara.io
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function Box3( min, max ) {

		this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );
		this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );

	}

	Object.assign( Box3.prototype, {

		isBox3: true,

		set: function ( min, max ) {

			this.min.copy( min );
			this.max.copy( max );

			return this;

		},

		setFromArray: function ( array ) {

			var minX = + Infinity;
			var minY = + Infinity;
			var minZ = + Infinity;

			var maxX = - Infinity;
			var maxY = - Infinity;
			var maxZ = - Infinity;

			for ( var i = 0, l = array.length; i < l; i += 3 ) {

				var x = array[ i ];
				var y = array[ i + 1 ];
				var z = array[ i + 2 ];

				if ( x < minX ) minX = x;
				if ( y < minY ) minY = y;
				if ( z < minZ ) minZ = z;

				if ( x > maxX ) maxX = x;
				if ( y > maxY ) maxY = y;
				if ( z > maxZ ) maxZ = z;

			}

			this.min.set( minX, minY, minZ );
			this.max.set( maxX, maxY, maxZ );

			return this;

		},

		setFromBufferAttribute: function ( attribute ) {

			var minX = + Infinity;
			var minY = + Infinity;
			var minZ = + Infinity;

			var maxX = - Infinity;
			var maxY = - Infinity;
			var maxZ = - Infinity;

			for ( var i = 0, l = attribute.count; i < l; i ++ ) {

				var x = attribute.getX( i );
				var y = attribute.getY( i );
				var z = attribute.getZ( i );

				if ( x < minX ) minX = x;
				if ( y < minY ) minY = y;
				if ( z < minZ ) minZ = z;

				if ( x > maxX ) maxX = x;
				if ( y > maxY ) maxY = y;
				if ( z > maxZ ) maxZ = z;

			}

			this.min.set( minX, minY, minZ );
			this.max.set( maxX, maxY, maxZ );

			return this;

		},

		setFromPoints: function ( points ) {

			this.makeEmpty();

			for ( var i = 0, il = points.length; i < il; i ++ ) {

				this.expandByPoint( points[ i ] );

			}

			return this;

		},

		setFromCenterAndSize: function () {

			var v1 = new Vector3();

			return function setFromCenterAndSize( center, size ) {

				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );

				this.min.copy( center ).sub( halfSize );
				this.max.copy( center ).add( halfSize );

				return this;

			};

		}(),

		setFromObject: function ( object ) {

			this.makeEmpty();

			return this.expandByObject( object );

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( box ) {

			this.min.copy( box.min );
			this.max.copy( box.max );

			return this;

		},

		makeEmpty: function () {

			this.min.x = this.min.y = this.min.z = + Infinity;
			this.max.x = this.max.y = this.max.z = - Infinity;

			return this;

		},

		isEmpty: function () {

			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );

		},

		getCenter: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Box3: .getCenter() target is now required' );
				target = new Vector3();

			}

			return this.isEmpty() ? target.set( 0, 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

		},

		getSize: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Box3: .getSize() target is now required' );
				target = new Vector3();

			}

			return this.isEmpty() ? target.set( 0, 0, 0 ) : target.subVectors( this.max, this.min );

		},

		expandByPoint: function ( point ) {

			this.min.min( point );
			this.max.max( point );

			return this;

		},

		expandByVector: function ( vector ) {

			this.min.sub( vector );
			this.max.add( vector );

			return this;

		},

		expandByScalar: function ( scalar ) {

			this.min.addScalar( - scalar );
			this.max.addScalar( scalar );

			return this;

		},

		expandByObject: function () {

			// Computes the world-axis-aligned bounding box of an object (including its children),
			// accounting for both the object's, and children's, world transforms

			var scope, i, l;

			var v1 = new Vector3();

			function traverse( node ) {

				var geometry = node.geometry;

				if ( geometry !== undefined ) {

					if ( geometry.isGeometry ) {

						var vertices = geometry.vertices;

						for ( i = 0, l = vertices.length; i < l; i ++ ) {

							v1.copy( vertices[ i ] );
							v1.applyMatrix4( node.matrixWorld );

							scope.expandByPoint( v1 );

						}

					} else if ( geometry.isBufferGeometry ) {

						var attribute = geometry.attributes.position;

						if ( attribute !== undefined ) {

							for ( i = 0, l = attribute.count; i < l; i ++ ) {

								v1.fromBufferAttribute( attribute, i ).applyMatrix4( node.matrixWorld );

								scope.expandByPoint( v1 );

							}

						}

					}

				}

			}

			return function expandByObject( object ) {

				scope = this;

				object.updateMatrixWorld( true );

				object.traverse( traverse );

				return this;

			};

		}(),

		containsPoint: function ( point ) {

			return point.x < this.min.x || point.x > this.max.x ||
				point.y < this.min.y || point.y > this.max.y ||
				point.z < this.min.z || point.z > this.max.z ? false : true;

		},

		containsBox: function ( box ) {

			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
				this.min.y <= box.min.y && box.max.y <= this.max.y &&
				this.min.z <= box.min.z && box.max.z <= this.max.z;

		},

		getParameter: function ( point, target ) {

			// This can potentially have a divide by zero if the box
			// has a size dimension of 0.

			if ( target === undefined ) {

				console.warn( 'THREE.Box3: .getParameter() target is now required' );
				target = new Vector3();

			}

			return target.set(
				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
				( point.y - this.min.y ) / ( this.max.y - this.min.y ),
				( point.z - this.min.z ) / ( this.max.z - this.min.z )
			);

		},

		intersectsBox: function ( box ) {

			// using 6 splitting planes to rule out intersections.
			return box.max.x < this.min.x || box.min.x > this.max.x ||
				box.max.y < this.min.y || box.min.y > this.max.y ||
				box.max.z < this.min.z || box.min.z > this.max.z ? false : true;

		},

		intersectsSphere: ( function () {

			var closestPoint = new Vector3();

			return function intersectsSphere( sphere ) {

				// Find the point on the AABB closest to the sphere center.
				this.clampPoint( sphere.center, closestPoint );

				// If that point is inside the sphere, the AABB and sphere intersect.
				return closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );

			};

		} )(),

		intersectsPlane: function ( plane ) {

			// We compute the minimum and maximum dot product values. If those values
			// are on the same side (back or front) of the plane, then there is no intersection.

			var min, max;

			if ( plane.normal.x > 0 ) {

				min = plane.normal.x * this.min.x;
				max = plane.normal.x * this.max.x;

			} else {

				min = plane.normal.x * this.max.x;
				max = plane.normal.x * this.min.x;

			}

			if ( plane.normal.y > 0 ) {

				min += plane.normal.y * this.min.y;
				max += plane.normal.y * this.max.y;

			} else {

				min += plane.normal.y * this.max.y;
				max += plane.normal.y * this.min.y;

			}

			if ( plane.normal.z > 0 ) {

				min += plane.normal.z * this.min.z;
				max += plane.normal.z * this.max.z;

			} else {

				min += plane.normal.z * this.max.z;
				max += plane.normal.z * this.min.z;

			}

			return ( min <= plane.constant && max >= plane.constant );

		},

		intersectsTriangle: ( function () {

			// triangle centered vertices
			var v0 = new Vector3();
			var v1 = new Vector3();
			var v2 = new Vector3();

			// triangle edge vectors
			var f0 = new Vector3();
			var f1 = new Vector3();
			var f2 = new Vector3();

			var testAxis = new Vector3();

			var center = new Vector3();
			var extents = new Vector3();

			var triangleNormal = new Vector3();

			function satForAxes( axes ) {

				var i, j;

				for ( i = 0, j = axes.length - 3; i <= j; i += 3 ) {

					testAxis.fromArray( axes, i );
					// project the aabb onto the seperating axis
					var r = extents.x * Math.abs( testAxis.x ) + extents.y * Math.abs( testAxis.y ) + extents.z * Math.abs( testAxis.z );
					// project all 3 vertices of the triangle onto the seperating axis
					var p0 = v0.dot( testAxis );
					var p1 = v1.dot( testAxis );
					var p2 = v2.dot( testAxis );
					// actual test, basically see if either of the most extreme of the triangle points intersects r
					if ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) {

						// points of the projected triangle are outside the projected half-length of the aabb
						// the axis is seperating and we can exit
						return false;

					}

				}

				return true;

			}

			return function intersectsTriangle( triangle ) {

				if ( this.isEmpty() ) {

					return false;

				}

				// compute box center and extents
				this.getCenter( center );
				extents.subVectors( this.max, center );

				// translate triangle to aabb origin
				v0.subVectors( triangle.a, center );
				v1.subVectors( triangle.b, center );
				v2.subVectors( triangle.c, center );

				// compute edge vectors for triangle
				f0.subVectors( v1, v0 );
				f1.subVectors( v2, v1 );
				f2.subVectors( v0, v2 );

				// test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
				// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
				// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)
				var axes = [
					0, - f0.z, f0.y, 0, - f1.z, f1.y, 0, - f2.z, f2.y,
					f0.z, 0, - f0.x, f1.z, 0, - f1.x, f2.z, 0, - f2.x,
					- f0.y, f0.x, 0, - f1.y, f1.x, 0, - f2.y, f2.x, 0
				];
				if ( ! satForAxes( axes ) ) {

					return false;

				}

				// test 3 face normals from the aabb
				axes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ];
				if ( ! satForAxes( axes ) ) {

					return false;

				}

				// finally testing the face normal of the triangle
				// use already existing triangle edge vectors here
				triangleNormal.crossVectors( f0, f1 );
				axes = [ triangleNormal.x, triangleNormal.y, triangleNormal.z ];
				return satForAxes( axes );

			};

		} )(),

		clampPoint: function ( point, target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Box3: .clampPoint() target is now required' );
				target = new Vector3();

			}

			return target.copy( point ).clamp( this.min, this.max );

		},

		distanceToPoint: function () {

			var v1 = new Vector3();

			return function distanceToPoint( point ) {

				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
				return clampedPoint.sub( point ).length();

			};

		}(),

		getBoundingSphere: function () {

			var v1 = new Vector3();

			return function getBoundingSphere( target ) {

				if ( target === undefined ) {

					console.warn( 'THREE.Box3: .getBoundingSphere() target is now required' );
					target = new Sphere();

				}

				this.getCenter( target.center );

				target.radius = this.getSize( v1 ).length() * 0.5;

				return target;

			};

		}(),

		intersect: function ( box ) {

			this.min.max( box.min );
			this.max.min( box.max );

			// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
			if ( this.isEmpty() ) this.makeEmpty();

			return this;

		},

		union: function ( box ) {

			this.min.min( box.min );
			this.max.max( box.max );

			return this;

		},

		applyMatrix4: function () {

			var points = [
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3()
			];

			return function applyMatrix4( matrix ) {

				// transform of empty box is an empty box.
				if ( this.isEmpty() ) return this;

				// NOTE: I am using a binary pattern to specify all 2^3 combinations below
				points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000
				points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001
				points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010
				points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011
				points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100
				points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101
				points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110
				points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 111

				this.setFromPoints( points );

				return this;

			};

		}(),

		translate: function ( offset ) {

			this.min.add( offset );
			this.max.add( offset );

			return this;

		},

		equals: function ( box ) {

			return box.min.equals( this.min ) && box.max.equals( this.max );

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Sphere( center, radius ) {

		this.center = ( center !== undefined ) ? center : new Vector3();
		this.radius = ( radius !== undefined ) ? radius : 0;

	}

	Object.assign( Sphere.prototype, {

		set: function ( center, radius ) {

			this.center.copy( center );
			this.radius = radius;

			return this;

		},

		setFromPoints: function () {

			var box = new Box3();

			return function setFromPoints( points, optionalCenter ) {

				var center = this.center;

				if ( optionalCenter !== undefined ) {

					center.copy( optionalCenter );

				} else {

					box.setFromPoints( points ).getCenter( center );

				}

				var maxRadiusSq = 0;

				for ( var i = 0, il = points.length; i < il; i ++ ) {

					maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );

				}

				this.radius = Math.sqrt( maxRadiusSq );

				return this;

			};

		}(),

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( sphere ) {

			this.center.copy( sphere.center );
			this.radius = sphere.radius;

			return this;

		},

		empty: function () {

			return ( this.radius <= 0 );

		},

		containsPoint: function ( point ) {

			return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );

		},

		distanceToPoint: function ( point ) {

			return ( point.distanceTo( this.center ) - this.radius );

		},

		intersectsSphere: function ( sphere ) {

			var radiusSum = this.radius + sphere.radius;

			return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );

		},

		intersectsBox: function ( box ) {

			return box.intersectsSphere( this );

		},

		intersectsPlane: function ( plane ) {

			return Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius;

		},

		clampPoint: function ( point, target ) {

			var deltaLengthSq = this.center.distanceToSquared( point );

			if ( target === undefined ) {

				console.warn( 'THREE.Sphere: .clampPoint() target is now required' );
				target = new Vector3();

			}

			target.copy( point );

			if ( deltaLengthSq > ( this.radius * this.radius ) ) {

				target.sub( this.center ).normalize();
				target.multiplyScalar( this.radius ).add( this.center );

			}

			return target;

		},

		getBoundingBox: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Sphere: .getBoundingBox() target is now required' );
				target = new Box3();

			}

			target.set( this.center, this.center );
			target.expandByScalar( this.radius );

			return target;

		},

		applyMatrix4: function ( matrix ) {

			this.center.applyMatrix4( matrix );
			this.radius = this.radius * matrix.getMaxScaleOnAxis();

			return this;

		},

		translate: function ( offset ) {

			this.center.add( offset );

			return this;

		},

		equals: function ( sphere ) {

			return sphere.center.equals( this.center ) && ( sphere.radius === this.radius );

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 */

	function Plane( normal, constant ) {

		// normal is assumed to be normalized

		this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );
		this.constant = ( constant !== undefined ) ? constant : 0;

	}

	Object.assign( Plane.prototype, {

		set: function ( normal, constant ) {

			this.normal.copy( normal );
			this.constant = constant;

			return this;

		},

		setComponents: function ( x, y, z, w ) {

			this.normal.set( x, y, z );
			this.constant = w;

			return this;

		},

		setFromNormalAndCoplanarPoint: function ( normal, point ) {

			this.normal.copy( normal );
			this.constant = - point.dot( this.normal );

			return this;

		},

		setFromCoplanarPoints: function () {

			var v1 = new Vector3();
			var v2 = new Vector3();

			return function setFromCoplanarPoints( a, b, c ) {

				var normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();

				// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?

				this.setFromNormalAndCoplanarPoint( normal, a );

				return this;

			};

		}(),

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( plane ) {

			this.normal.copy( plane.normal );
			this.constant = plane.constant;

			return this;

		},

		normalize: function () {

			// Note: will lead to a divide by zero if the plane is invalid.

			var inverseNormalLength = 1.0 / this.normal.length();
			this.normal.multiplyScalar( inverseNormalLength );
			this.constant *= inverseNormalLength;

			return this;

		},

		negate: function () {

			this.constant *= - 1;
			this.normal.negate();

			return this;

		},

		distanceToPoint: function ( point ) {

			return this.normal.dot( point ) + this.constant;

		},

		distanceToSphere: function ( sphere ) {

			return this.distanceToPoint( sphere.center ) - sphere.radius;

		},

		projectPoint: function ( point, target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Plane: .projectPoint() target is now required' );
				target = new Vector3();

			}

			return target.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point );

		},

		intersectLine: function () {

			var v1 = new Vector3();

			return function intersectLine( line, target ) {

				if ( target === undefined ) {

					console.warn( 'THREE.Plane: .intersectLine() target is now required' );
					target = new Vector3();

				}

				var direction = line.delta( v1 );

				var denominator = this.normal.dot( direction );

				if ( denominator === 0 ) {

					// line is coplanar, return origin
					if ( this.distanceToPoint( line.start ) === 0 ) {

						return target.copy( line.start );

					}

					// Unsure if this is the correct method to handle this case.
					return undefined;

				}

				var t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;

				if ( t < 0 || t > 1 ) {

					return undefined;

				}

				return target.copy( direction ).multiplyScalar( t ).add( line.start );

			};

		}(),

		intersectsLine: function ( line ) {

			// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.

			var startSign = this.distanceToPoint( line.start );
			var endSign = this.distanceToPoint( line.end );

			return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );

		},

		intersectsBox: function ( box ) {

			return box.intersectsPlane( this );

		},

		intersectsSphere: function ( sphere ) {

			return sphere.intersectsPlane( this );

		},

		coplanarPoint: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Plane: .coplanarPoint() target is now required' );
				target = new Vector3();

			}

			return target.copy( this.normal ).multiplyScalar( - this.constant );

		},

		applyMatrix4: function () {

			var v1 = new Vector3();
			var m1 = new Matrix3();

			return function applyMatrix4( matrix, optionalNormalMatrix ) {

				var normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );

				var referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix );

				var normal = this.normal.applyMatrix3( normalMatrix ).normalize();

				this.constant = - referencePoint.dot( normal );

				return this;

			};

		}(),

		translate: function ( offset ) {

			this.constant -= offset.dot( this.normal );

			return this;

		},

		equals: function ( plane ) {

			return plane.normal.equals( this.normal ) && ( plane.constant === this.constant );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author bhouston / http://clara.io
	 */

	function Frustum( p0, p1, p2, p3, p4, p5 ) {

		this.planes = [

			( p0 !== undefined ) ? p0 : new Plane(),
			( p1 !== undefined ) ? p1 : new Plane(),
			( p2 !== undefined ) ? p2 : new Plane(),
			( p3 !== undefined ) ? p3 : new Plane(),
			( p4 !== undefined ) ? p4 : new Plane(),
			( p5 !== undefined ) ? p5 : new Plane()

		];

	}

	Object.assign( Frustum.prototype, {

		set: function ( p0, p1, p2, p3, p4, p5 ) {

			var planes = this.planes;

			planes[ 0 ].copy( p0 );
			planes[ 1 ].copy( p1 );
			planes[ 2 ].copy( p2 );
			planes[ 3 ].copy( p3 );
			planes[ 4 ].copy( p4 );
			planes[ 5 ].copy( p5 );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( frustum ) {

			var planes = this.planes;

			for ( var i = 0; i < 6; i ++ ) {

				planes[ i ].copy( frustum.planes[ i ] );

			}

			return this;

		},

		setFromMatrix: function ( m ) {

			var planes = this.planes;
			var me = m.elements;
			var me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];
			var me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];
			var me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];
			var me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];

			planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();
			planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();
			planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();
			planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();
			planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();
			planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();

			return this;

		},

		intersectsObject: function () {

			var sphere = new Sphere();

			return function intersectsObject( object ) {

				var geometry = object.geometry;

				if ( geometry.boundingSphere === null )
					geometry.computeBoundingSphere();

				sphere.copy( geometry.boundingSphere )
					.applyMatrix4( object.matrixWorld );

				return this.intersectsSphere( sphere );

			};

		}(),

		intersectsSprite: function () {

			var sphere = new Sphere();

			return function intersectsSprite( sprite ) {

				sphere.center.set( 0, 0, 0 );
				sphere.radius = 0.7071067811865476;
				sphere.applyMatrix4( sprite.matrixWorld );

				return this.intersectsSphere( sphere );

			};

		}(),

		intersectsSphere: function ( sphere ) {

			var planes = this.planes;
			var center = sphere.center;
			var negRadius = - sphere.radius;

			for ( var i = 0; i < 6; i ++ ) {

				var distance = planes[ i ].distanceToPoint( center );

				if ( distance < negRadius ) {

					return false;

				}

			}

			return true;

		},

		intersectsBox: function () {

			var p = new Vector3();

			return function intersectsBox( box ) {

				var planes = this.planes;

				for ( var i = 0; i < 6; i ++ ) {

					var plane = planes[ i ];

					// corner at max distance

					p.x = plane.normal.x > 0 ? box.max.x : box.min.x;
					p.y = plane.normal.y > 0 ? box.max.y : box.min.y;
					p.z = plane.normal.z > 0 ? box.max.z : box.min.z;

					if ( plane.distanceToPoint( p ) < 0 ) {

						return false;

					}

				}

				return true;

			};

		}(),

		containsPoint: function ( point ) {

			var planes = this.planes;

			for ( var i = 0; i < 6; i ++ ) {

				if ( planes[ i ].distanceToPoint( point ) < 0 ) {

					return false;

				}

			}

			return true;

		}

	} );

	var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif\n";

	var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif\n";

	var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif\n";

	var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif\n";

	var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";

	var begin_vertex = "\nvec3 transformed = vec3( position );\n";

	var beginnormal_vertex = "\nvec3 objectNormal = vec3( normal );\n";

	var bsdfs = "float punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\tif( decayExponent > 0.0 ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\treturn distanceFalloff * maxDistanceCutoffFactor;\n#else\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n#endif\n\t}\n\treturn 1.0;\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE  = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS  = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\n\treturn specularColor * AB.x + AB.y;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n";

	var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tfDet *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif\n";

	var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\tif ( clipped ) discard;\n\t#endif\n#endif\n";

	var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\n\t\tvarying vec3 vViewPosition;\n\t#endif\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif\n";

	var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvarying vec3 vViewPosition;\n#endif\n";

	var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n";

	var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif";

	var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif\n";

	var color_pars_vertex = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";

	var color_vertex = "#ifdef USE_COLOR\n\tvColor.xyz = color.xyz;\n#endif";

	var common = "#define PI 3.14159265359\n#define PI2 6.28318530718\n#define PI_HALF 1.5707963267949\n#define RECIPROCAL_PI 0.31830988618\n#define RECIPROCAL_PI2 0.15915494\n#define LOG2 1.442695\n#define EPSILON 1e-6\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\n";

	var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n#define cubeUV_textureSize (1024.0)\nint getFaceFromDirection(vec3 direction) {\n\tvec3 absDirection = abs(direction);\n\tint face = -1;\n\tif( absDirection.x > absDirection.z ) {\n\t\tif(absDirection.x > absDirection.y )\n\t\t\tface = direction.x > 0.0 ? 0 : 3;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\telse {\n\t\tif(absDirection.z > absDirection.y )\n\t\t\tface = direction.z > 0.0 ? 2 : 5;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\treturn face;\n}\n#define cubeUV_maxLods1  (log2(cubeUV_textureSize*0.25) - 1.0)\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\n\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\n\tfloat dxRoughness = dFdx(roughness);\n\tfloat dyRoughness = dFdy(roughness);\n\tvec3 dx = dFdx( vec * scale * dxRoughness );\n\tvec3 dy = dFdy( vec * scale * dyRoughness );\n\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\n\td = clamp(d, 1.0, cubeUV_rangeClamp);\n\tfloat mipLevel = 0.5 * log2(d);\n\treturn vec2(floor(mipLevel), fract(mipLevel));\n}\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\n\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\n\tfloat a = 16.0 * cubeUV_rcpTextureSize;\n\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\n\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\n\tfloat powScale = exp2_packed.x * exp2_packed.y;\n\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\n\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\n\tbool bRes = mipLevel == 0.0;\n\tscale =  bRes && (scale < a) ? a : scale;\n\tvec3 r;\n\tvec2 offset;\n\tint face = getFaceFromDirection(direction);\n\tfloat rcpPowScale = 1.0 / powScale;\n\tif( face == 0) {\n\t\tr = vec3(direction.x, -direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 1) {\n\t\tr = vec3(direction.y, direction.x, direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 2) {\n\t\tr = vec3(direction.z, direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 3) {\n\t\tr = vec3(direction.x, direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse if( face == 4) {\n\t\tr = vec3(direction.y, direction.x, -direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse {\n\t\tr = vec3(direction.z, -direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\tr = normalize(r);\n\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\n\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\n\tvec2 base = offset + vec2( texelOffset );\n\treturn base + s * ( scale - 2.0 * texelOffset );\n}\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\nvec4 textureCubeUV( sampler2D envMap, vec3 reflectedDirection, float roughness ) {\n\tfloat roughnessVal = roughness* cubeUV_maxLods3;\n\tfloat r1 = floor(roughnessVal);\n\tfloat r2 = r1 + 1.0;\n\tfloat t = fract(roughnessVal);\n\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\n\tfloat s = mipInfo.y;\n\tfloat level0 = mipInfo.x;\n\tfloat level1 = level0 + 1.0;\n\tlevel1 = level1 > 5.0 ? 5.0 : level1;\n\tlevel0 += min( floor( s + 0.5 ), 5.0 );\n\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\n\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\n\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\n\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\n\tvec4 result = mix(color10, color20, t);\n\treturn vec4(result.rgb, 1.0);\n}\n#endif\n";

	var defaultnormal_vertex = "vec3 transformedNormal = normalMatrix * objectNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n";

	var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif\n";

	var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\n#endif\n";

	var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif\n";

	var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif\n";

	var encodings_fragment = "  gl_FragColor = linearToOutputTexel( gl_FragColor );\n";

	var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.xyz * value.w * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat M      = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM            = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat D      = max( maxRange / maxRGB, 1.0 );\n\tD            = min( floor( D ) / 255.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value )  {\n\tvec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\n\tXp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract(Le);\n\tvResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\n\treturn vec4( max(vRGB, 0.0), 1.0 );\n}\n";

	var envmap_fragment = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\tvec2 sampleUV;\n\t\treflectVec = normalize( reflectVec );\n\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\tvec4 envColor = texture2D( envMap, sampleUV );\n\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\treflectVec = normalize( reflectVec );\n\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\n\t\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\tenvColor = envMapTexelToLinear( envColor );\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif\n";

	var envmap_pars_fragment = "#if defined( USE_ENVMAP ) || defined( PHYSICAL )\n\tuniform float reflectivity;\n\tuniform float envMapIntensity;\n#endif\n#ifdef USE_ENVMAP\n\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\n\t\tvarying vec3 vWorldPosition;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif\n";

	var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif\n";

	var envmap_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif\n";

	var fog_vertex = "#ifdef USE_FOG\n\tvFogPosition = mvPosition.xyz;\n#endif\n";

	var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying vec3 vFogPosition;\n#endif\n";

	var fog_fragment = "#ifdef USE_FOG\n\tfloat fogDepth = length( vFogPosition );\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif\n";

	var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying vec3 vFogPosition;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif\n";

	var gradientmap_pars_fragment = "#ifdef TOON\n\tuniform sampler2D gradientMap;\n\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\t\tfloat dotNL = dot( normal, lightDirection );\n\t\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t\t#ifdef USE_GRADIENTMAP\n\t\t\treturn texture2D( gradientMap, coord ).rgb;\n\t\t#else\n\t\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t\t#endif\n\t}\n#endif\n";

	var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n#endif\n";

	var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";

	var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n#endif\n";

	var lights_pars_begin = "uniform vec3 ambientLightColor;\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t\tfloat shadowCameraNear;\n\t\tfloat shadowCameraFar;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight  ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif\n";

	var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, queryVec, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent ));\n\t\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\t\tvec2 sampleUV;\n\t\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif\n";

	var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;\n";

	var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3\tdiffuseColor;\n\tvec3\tspecularColor;\n\tfloat\tspecularShininess;\n\tfloat\tspecularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifdef TOON\n\t\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#else\n\t\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\t\tvec3 irradiance = dotNL * directLight.color;\n\t#endif\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)\n";

	var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\n#ifdef STANDARD\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.clearCoat = saturate( clearCoat );\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\n#endif\n";

	var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3\tdiffuseColor;\n\tfloat\tspecularRoughness;\n\tvec3\tspecularColor;\n\t#ifndef STANDARD\n\t\tfloat clearCoat;\n\t\tfloat clearCoatRoughness;\n\t#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos - halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos + halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos + halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos - halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifndef STANDARD\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\n\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#ifndef STANDARD\n\t\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifndef STANDARD\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\tfloat dotNL = dotNV;\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\n\t#ifndef STANDARD\n\t\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\n#define Material_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.specularRoughness )\n#define Material_ClearCoat_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}\n";

	var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = normalize( vViewPosition );\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearCoatRadiance = vec3( 0.0 );\n#endif\n";

	var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tirradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), maxMipLevel );\n\t#ifndef STANDARD\n\t\tclearCoatRadiance += getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), maxMipLevel );\n\t#endif\n#endif\n";

	var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\n#endif\n";

	var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";

	var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n#endif\n";

	var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif\n";

	var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t#else\n\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\tgl_Position.z *= gl_Position.w;\n\t#endif\n#endif\n";

	var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif\n";

	var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n";

	var map_particle_fragment = "#ifdef USE_MAP\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n";

	var map_particle_pars_fragment = "#ifdef USE_MAP\n\tuniform mat3 uvTransform;\n\tuniform sampler2D map;\n#endif\n";

	var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif\n";

	var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";

	var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\n\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\n\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\n\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\n#endif\n";

	var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\t#ifndef USE_MORPHNORMALS\n\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif";

	var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\n\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\n\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\n\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\n\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\n\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\n\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\n\t#endif\n#endif\n";

	var normal_fragment_begin = "#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n#endif\n";

	var normal_fragment_maps = "#ifdef USE_NORMALMAP\n\t#ifdef OBJECTSPACE_NORMALMAP\n\t\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\t#ifdef FLIP_SIDED\n\t\t\tnormal = - normal;\n\t\t#endif\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t#endif\n\t\tnormal = normalize( normalMatrix * normal );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif\n";

	var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n\t#ifdef OBJECTSPACE_NORMALMAP\n\t\tuniform mat3 normalMatrix;\n\t#else\n\t\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\n\t\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\t\tvec2 st0 = dFdx( vUv.st );\n\t\t\tvec2 st1 = dFdy( vUv.st );\n\t\t\tfloat scale = sign( st1.t * st0.s - st0.t * st1.s );\n\t\t\tvec3 S = normalize( ( q0 * st1.t - q1 * st0.t ) * scale );\n\t\t\tvec3 T = normalize( ( - q0 * st1.s + q1 * st0.s ) * scale );\n\t\t\tvec3 N = normalize( surf_norm );\n\t\t\tmat3 tsn = mat3( S, T, N );\n\t\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\t\tmapN.xy *= normalScale;\n\t\t\tmapN.xy *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t\treturn normalize( tsn * mapN );\n\t\t}\n\t#endif\n#endif\n";

	var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256.,  256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}\n";

	var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif\n";

	var project_vertex = "vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\ngl_Position = projectionMatrix * mvPosition;\n";

	var dithering_fragment = "#if defined( DITHERING )\n  gl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif\n";

	var dithering_pars_fragment = "#if defined( DITHERING )\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif\n";

	var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif\n";

	var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";

	var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\n\t\tconst vec2 offset = vec2( 0.0, 1.0 );\n\t\tvec2 texelSize = vec2( 1.0 ) / size;\n\t\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\n\t\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\n\t\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\n\t\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\n\t\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\n\t\tvec2 f = fract( uv * size + 0.5 );\n\t\tfloat a = mix( lb, lt, f.y );\n\t\tfloat b = mix( rb, rt, f.y );\n\t\tfloat c = mix( a, b, f.x );\n\t\treturn c;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif\n";

	var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n#endif\n";

	var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n#endif\n";

	var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tDirectionalLight directionalLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tSpotLight spotLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tPointLight pointLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#endif\n\t#endif\n\treturn shadow;\n}\n";

	var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";

	var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif\n";

	var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif\n";

	var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix  = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n#endif\n";

	var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";

	var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";

	var tonemapping_fragment = "#if defined( TONE_MAPPING )\n  gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif\n";

	var tonemapping_pars_fragment = "#ifndef saturate\n\t#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nuniform float toneMappingWhitePoint;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\nvec3 Uncharted2ToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\n";

	var uv_pars_fragment = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n#endif";

	var uv_pars_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n\tuniform mat3 uvTransform;\n#endif\n";

	var uv_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";

	var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";

	var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n#endif";

	var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = uv2;\n#endif";

	var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n#endif\n";

	var cube_frag = "uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldPosition;\nvoid main() {\n\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\n\tgl_FragColor.a *= opacity;\n}\n";

	var cube_vert = "varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}\n";

	var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - gl_FragCoord.z ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\n\t#endif\n}\n";

	var depth_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n}\n";

	var distanceRGBA_frag = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}\n";

	var distanceRGBA_vert = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}\n";

	var equirect_frag = "uniform sampler2D tEquirect;\nvarying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldPosition );\n\tvec2 sampleUV;\n\tsampleUV.y = asin( clamp( direction.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n}\n";

	var equirect_vert = "varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}\n";

	var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";

	var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\tvLineDistance = scale * lineDistance;\n\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}\n";

	var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";

	var meshbasic_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";

	var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";

	var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";

	var meshphysical_vert = "#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var normal_frag = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\nvoid main() {\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}\n";

	var normal_vert = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}\n";

	var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";

	var points_vert = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#ifdef USE_SIZEATTENUATION\n\t\tgl_PointSize = size * ( scale / - mvPosition.z );\n\t#else\n\t\tgl_PointSize = size;\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}\n";

	var shadow_frag = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <fog_fragment>\n}\n";

	var shadow_vert = "#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var sprite_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";

	var sprite_vert = "uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tvec4 mvPosition;\n\tmvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}\n";

	var ShaderChunk = {
		alphamap_fragment: alphamap_fragment,
		alphamap_pars_fragment: alphamap_pars_fragment,
		alphatest_fragment: alphatest_fragment,
		aomap_fragment: aomap_fragment,
		aomap_pars_fragment: aomap_pars_fragment,
		begin_vertex: begin_vertex,
		beginnormal_vertex: beginnormal_vertex,
		bsdfs: bsdfs,
		bumpmap_pars_fragment: bumpmap_pars_fragment,
		clipping_planes_fragment: clipping_planes_fragment,
		clipping_planes_pars_fragment: clipping_planes_pars_fragment,
		clipping_planes_pars_vertex: clipping_planes_pars_vertex,
		clipping_planes_vertex: clipping_planes_vertex,
		color_fragment: color_fragment,
		color_pars_fragment: color_pars_fragment,
		color_pars_vertex: color_pars_vertex,
		color_vertex: color_vertex,
		common: common,
		cube_uv_reflection_fragment: cube_uv_reflection_fragment,
		defaultnormal_vertex: defaultnormal_vertex,
		displacementmap_pars_vertex: displacementmap_pars_vertex,
		displacementmap_vertex: displacementmap_vertex,
		emissivemap_fragment: emissivemap_fragment,
		emissivemap_pars_fragment: emissivemap_pars_fragment,
		encodings_fragment: encodings_fragment,
		encodings_pars_fragment: encodings_pars_fragment,
		envmap_fragment: envmap_fragment,
		envmap_pars_fragment: envmap_pars_fragment,
		envmap_pars_vertex: envmap_pars_vertex,
		envmap_physical_pars_fragment: envmap_physical_pars_fragment,
		envmap_vertex: envmap_vertex,
		fog_vertex: fog_vertex,
		fog_pars_vertex: fog_pars_vertex,
		fog_fragment: fog_fragment,
		fog_pars_fragment: fog_pars_fragment,
		gradientmap_pars_fragment: gradientmap_pars_fragment,
		lightmap_fragment: lightmap_fragment,
		lightmap_pars_fragment: lightmap_pars_fragment,
		lights_lambert_vertex: lights_lambert_vertex,
		lights_pars_begin: lights_pars_begin,
		lights_phong_fragment: lights_phong_fragment,
		lights_phong_pars_fragment: lights_phong_pars_fragment,
		lights_physical_fragment: lights_physical_fragment,
		lights_physical_pars_fragment: lights_physical_pars_fragment,
		lights_fragment_begin: lights_fragment_begin,
		lights_fragment_maps: lights_fragment_maps,
		lights_fragment_end: lights_fragment_end,
		logdepthbuf_fragment: logdepthbuf_fragment,
		logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
		logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
		logdepthbuf_vertex: logdepthbuf_vertex,
		map_fragment: map_fragment,
		map_pars_fragment: map_pars_fragment,
		map_particle_fragment: map_particle_fragment,
		map_particle_pars_fragment: map_particle_pars_fragment,
		metalnessmap_fragment: metalnessmap_fragment,
		metalnessmap_pars_fragment: metalnessmap_pars_fragment,
		morphnormal_vertex: morphnormal_vertex,
		morphtarget_pars_vertex: morphtarget_pars_vertex,
		morphtarget_vertex: morphtarget_vertex,
		normal_fragment_begin: normal_fragment_begin,
		normal_fragment_maps: normal_fragment_maps,
		normalmap_pars_fragment: normalmap_pars_fragment,
		packing: packing,
		premultiplied_alpha_fragment: premultiplied_alpha_fragment,
		project_vertex: project_vertex,
		dithering_fragment: dithering_fragment,
		dithering_pars_fragment: dithering_pars_fragment,
		roughnessmap_fragment: roughnessmap_fragment,
		roughnessmap_pars_fragment: roughnessmap_pars_fragment,
		shadowmap_pars_fragment: shadowmap_pars_fragment,
		shadowmap_pars_vertex: shadowmap_pars_vertex,
		shadowmap_vertex: shadowmap_vertex,
		shadowmask_pars_fragment: shadowmask_pars_fragment,
		skinbase_vertex: skinbase_vertex,
		skinning_pars_vertex: skinning_pars_vertex,
		skinning_vertex: skinning_vertex,
		skinnormal_vertex: skinnormal_vertex,
		specularmap_fragment: specularmap_fragment,
		specularmap_pars_fragment: specularmap_pars_fragment,
		tonemapping_fragment: tonemapping_fragment,
		tonemapping_pars_fragment: tonemapping_pars_fragment,
		uv_pars_fragment: uv_pars_fragment,
		uv_pars_vertex: uv_pars_vertex,
		uv_vertex: uv_vertex,
		uv2_pars_fragment: uv2_pars_fragment,
		uv2_pars_vertex: uv2_pars_vertex,
		uv2_vertex: uv2_vertex,
		worldpos_vertex: worldpos_vertex,

		cube_frag: cube_frag,
		cube_vert: cube_vert,
		depth_frag: depth_frag,
		depth_vert: depth_vert,
		distanceRGBA_frag: distanceRGBA_frag,
		distanceRGBA_vert: distanceRGBA_vert,
		equirect_frag: equirect_frag,
		equirect_vert: equirect_vert,
		linedashed_frag: linedashed_frag,
		linedashed_vert: linedashed_vert,
		meshbasic_frag: meshbasic_frag,
		meshbasic_vert: meshbasic_vert,
		meshlambert_frag: meshlambert_frag,
		meshlambert_vert: meshlambert_vert,
		meshphong_frag: meshphong_frag,
		meshphong_vert: meshphong_vert,
		meshphysical_frag: meshphysical_frag,
		meshphysical_vert: meshphysical_vert,
		normal_frag: normal_frag,
		normal_vert: normal_vert,
		points_frag: points_frag,
		points_vert: points_vert,
		shadow_frag: shadow_frag,
		shadow_vert: shadow_vert,
		sprite_frag: sprite_frag,
		sprite_vert: sprite_vert
	};

	/**
	 * Uniform Utilities
	 */

	var UniformsUtils = {

		merge: function ( uniforms ) {

			var merged = {};

			for ( var u = 0; u < uniforms.length; u ++ ) {

				var tmp = this.clone( uniforms[ u ] );

				for ( var p in tmp ) {

					merged[ p ] = tmp[ p ];

				}

			}

			return merged;

		},

		clone: function ( uniforms_src ) {

			var uniforms_dst = {};

			for ( var u in uniforms_src ) {

				uniforms_dst[ u ] = {};

				for ( var p in uniforms_src[ u ] ) {

					var parameter_src = uniforms_src[ u ][ p ];

					if ( parameter_src && ( parameter_src.isColor ||
						parameter_src.isMatrix3 || parameter_src.isMatrix4 ||
						parameter_src.isVector2 || parameter_src.isVector3 || parameter_src.isVector4 ||
						parameter_src.isTexture ) ) {

						uniforms_dst[ u ][ p ] = parameter_src.clone();

					} else if ( Array.isArray( parameter_src ) ) {

						uniforms_dst[ u ][ p ] = parameter_src.slice();

					} else {

						uniforms_dst[ u ][ p ] = parameter_src;

					}

				}

			}

			return uniforms_dst;

		}

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	var ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,
		'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,
		'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,
		'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,
		'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,
		'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,
		'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,
		'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,
		'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,
		'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,
		'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,
		'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,
		'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,
		'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,
		'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,
		'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,
		'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,
		'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,
		'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,
		'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,
		'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,
		'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,
		'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,
		'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };

	function Color( r, g, b ) {

		if ( g === undefined && b === undefined ) {

			// r is THREE.Color, hex or string
			return this.set( r );

		}

		return this.setRGB( r, g, b );

	}

	Object.assign( Color.prototype, {

		isColor: true,

		r: 1, g: 1, b: 1,

		set: function ( value ) {

			if ( value && value.isColor ) {

				this.copy( value );

			} else if ( typeof value === 'number' ) {

				this.setHex( value );

			} else if ( typeof value === 'string' ) {

				this.setStyle( value );

			}

			return this;

		},

		setScalar: function ( scalar ) {

			this.r = scalar;
			this.g = scalar;
			this.b = scalar;

			return this;

		},

		setHex: function ( hex ) {

			hex = Math.floor( hex );

			this.r = ( hex >> 16 & 255 ) / 255;
			this.g = ( hex >> 8 & 255 ) / 255;
			this.b = ( hex & 255 ) / 255;

			return this;

		},

		setRGB: function ( r, g, b ) {

			this.r = r;
			this.g = g;
			this.b = b;

			return this;

		},

		setHSL: function () {

			function hue2rgb( p, q, t ) {

				if ( t < 0 ) t += 1;
				if ( t > 1 ) t -= 1;
				if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;
				if ( t < 1 / 2 ) return q;
				if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );
				return p;

			}

			return function setHSL( h, s, l ) {

				// h,s,l ranges are in 0.0 - 1.0
				h = _Math.euclideanModulo( h, 1 );
				s = _Math.clamp( s, 0, 1 );
				l = _Math.clamp( l, 0, 1 );

				if ( s === 0 ) {

					this.r = this.g = this.b = l;

				} else {

					var p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );
					var q = ( 2 * l ) - p;

					this.r = hue2rgb( q, p, h + 1 / 3 );
					this.g = hue2rgb( q, p, h );
					this.b = hue2rgb( q, p, h - 1 / 3 );

				}

				return this;

			};

		}(),

		setStyle: function ( style ) {

			function handleAlpha( string ) {

				if ( string === undefined ) return;

				if ( parseFloat( string ) < 1 ) {

					console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );

				}

			}


			var m;

			if ( m = /^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec( style ) ) {

				// rgb / hsl

				var color;
				var name = m[ 1 ];
				var components = m[ 2 ];

				switch ( name ) {

					case 'rgb':
					case 'rgba':

						if ( color = /^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {

							// rgb(255,0,0) rgba(255,0,0,0.5)
							this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;
							this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;
							this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;

							handleAlpha( color[ 5 ] );

							return this;

						}

						if ( color = /^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {

							// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
							this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;
							this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;
							this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;

							handleAlpha( color[ 5 ] );

							return this;

						}

						break;

					case 'hsl':
					case 'hsla':

						if ( color = /^([0-9]*\.?[0-9]+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {

							// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
							var h = parseFloat( color[ 1 ] ) / 360;
							var s = parseInt( color[ 2 ], 10 ) / 100;
							var l = parseInt( color[ 3 ], 10 ) / 100;

							handleAlpha( color[ 5 ] );

							return this.setHSL( h, s, l );

						}

						break;

				}

			} else if ( m = /^\#([A-Fa-f0-9]+)$/.exec( style ) ) {

				// hex color

				var hex = m[ 1 ];
				var size = hex.length;

				if ( size === 3 ) {

					// #ff0
					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;
					this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;
					this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;

					return this;

				} else if ( size === 6 ) {

					// #ff0000
					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;
					this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;
					this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;

					return this;

				}

			}

			if ( style && style.length > 0 ) {

				// color keywords
				var hex = ColorKeywords[ style ];

				if ( hex !== undefined ) {

					// red
					this.setHex( hex );

				} else {

					// unknown color
					console.warn( 'THREE.Color: Unknown color ' + style );

				}

			}

			return this;

		},

		clone: function () {

			return new this.constructor( this.r, this.g, this.b );

		},

		copy: function ( color ) {

			this.r = color.r;
			this.g = color.g;
			this.b = color.b;

			return this;

		},

		copyGammaToLinear: function ( color, gammaFactor ) {

			if ( gammaFactor === undefined ) gammaFactor = 2.0;

			this.r = Math.pow( color.r, gammaFactor );
			this.g = Math.pow( color.g, gammaFactor );
			this.b = Math.pow( color.b, gammaFactor );

			return this;

		},

		copyLinearToGamma: function ( color, gammaFactor ) {

			if ( gammaFactor === undefined ) gammaFactor = 2.0;

			var safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;

			this.r = Math.pow( color.r, safeInverse );
			this.g = Math.pow( color.g, safeInverse );
			this.b = Math.pow( color.b, safeInverse );

			return this;

		},

		convertGammaToLinear: function ( gammaFactor ) {

			this.copyGammaToLinear( this, gammaFactor );

			return this;

		},

		convertLinearToGamma: function ( gammaFactor ) {

			this.copyLinearToGamma( this, gammaFactor );

			return this;

		},

		copySRGBToLinear: function () {

			function SRGBToLinear( c ) {

				return ( c < 0.04045 ) ? c * 0.0773993808 : Math.pow( c * 0.9478672986 + 0.0521327014, 2.4 );

			}

			return function copySRGBToLinear( color ) {

				this.r = SRGBToLinear( color.r );
				this.g = SRGBToLinear( color.g );
				this.b = SRGBToLinear( color.b );

				return this;

			};

		}(),

		copyLinearToSRGB: function () {

			function LinearToSRGB( c ) {

				return ( c < 0.0031308 ) ? c * 12.92 : 1.055 * ( Math.pow( c, 0.41666 ) ) - 0.055;

			}

			return function copyLinearToSRGB( color ) {

				this.r = LinearToSRGB( color.r );
				this.g = LinearToSRGB( color.g );
				this.b = LinearToSRGB( color.b );

				return this;

			};

		}(),

		convertSRGBToLinear: function () {

			this.copySRGBToLinear( this );

			return this;

		},

		convertLinearToSRGB: function () {

			this.copyLinearToSRGB( this );

			return this;

		},

		getHex: function () {

			return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;

		},

		getHexString: function () {

			return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );

		},

		getHSL: function ( target ) {

			// h,s,l ranges are in 0.0 - 1.0

			if ( target === undefined ) {

				console.warn( 'THREE.Color: .getHSL() target is now required' );
				target = { h: 0, s: 0, l: 0 };

			}

			var r = this.r, g = this.g, b = this.b;

			var max = Math.max( r, g, b );
			var min = Math.min( r, g, b );

			var hue, saturation;
			var lightness = ( min + max ) / 2.0;

			if ( min === max ) {

				hue = 0;
				saturation = 0;

			} else {

				var delta = max - min;

				saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );

				switch ( max ) {

					case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;
					case g: hue = ( b - r ) / delta + 2; break;
					case b: hue = ( r - g ) / delta + 4; break;

				}

				hue /= 6;

			}

			target.h = hue;
			target.s = saturation;
			target.l = lightness;

			return target;

		},

		getStyle: function () {

			return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';

		},

		offsetHSL: function () {

			var hsl = {};

			return function ( h, s, l ) {

				this.getHSL( hsl );

				hsl.h += h; hsl.s += s; hsl.l += l;

				this.setHSL( hsl.h, hsl.s, hsl.l );

				return this;

			};

		}(),

		add: function ( color ) {

			this.r += color.r;
			this.g += color.g;
			this.b += color.b;

			return this;

		},

		addColors: function ( color1, color2 ) {

			this.r = color1.r + color2.r;
			this.g = color1.g + color2.g;
			this.b = color1.b + color2.b;

			return this;

		},

		addScalar: function ( s ) {

			this.r += s;
			this.g += s;
			this.b += s;

			return this;

		},

		sub: function ( color ) {

			this.r = Math.max( 0, this.r - color.r );
			this.g = Math.max( 0, this.g - color.g );
			this.b = Math.max( 0, this.b - color.b );

			return this;

		},

		multiply: function ( color ) {

			this.r *= color.r;
			this.g *= color.g;
			this.b *= color.b;

			return this;

		},

		multiplyScalar: function ( s ) {

			this.r *= s;
			this.g *= s;
			this.b *= s;

			return this;

		},

		lerp: function ( color, alpha ) {

			this.r += ( color.r - this.r ) * alpha;
			this.g += ( color.g - this.g ) * alpha;
			this.b += ( color.b - this.b ) * alpha;

			return this;

		},

		lerpHSL: function () {

			var hslA = { h: 0, s: 0, l: 0 };
			var hslB = { h: 0, s: 0, l: 0 };

			return function lerpHSL( color, alpha ) {

				this.getHSL( hslA );
				color.getHSL( hslB );

				var h = _Math.lerp( hslA.h, hslB.h, alpha );
				var s = _Math.lerp( hslA.s, hslB.s, alpha );
				var l = _Math.lerp( hslA.l, hslB.l, alpha );

				this.setHSL( h, s, l );

				return this;

			};

		}(),

		equals: function ( c ) {

			return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this.r = array[ offset ];
			this.g = array[ offset + 1 ];
			this.b = array[ offset + 2 ];

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this.r;
			array[ offset + 1 ] = this.g;
			array[ offset + 2 ] = this.b;

			return array;

		},

		toJSON: function () {

			return this.getHex();

		}

	} );

	/**
	 * Uniforms library for shared webgl shaders
	 */

	var UniformsLib = {

		common: {

			diffuse: { value: new Color( 0xeeeeee ) },
			opacity: { value: 1.0 },

			map: { value: null },
			uvTransform: { value: new Matrix3() },

			alphaMap: { value: null },

		},

		specularmap: {

			specularMap: { value: null },

		},

		envmap: {

			envMap: { value: null },
			flipEnvMap: { value: - 1 },
			reflectivity: { value: 1.0 },
			refractionRatio: { value: 0.98 },
			maxMipLevel: { value: 0 }

		},

		aomap: {

			aoMap: { value: null },
			aoMapIntensity: { value: 1 }

		},

		lightmap: {

			lightMap: { value: null },
			lightMapIntensity: { value: 1 }

		},

		emissivemap: {

			emissiveMap: { value: null }

		},

		bumpmap: {

			bumpMap: { value: null },
			bumpScale: { value: 1 }

		},

		normalmap: {

			normalMap: { value: null },
			normalScale: { value: new Vector2( 1, 1 ) }

		},

		displacementmap: {

			displacementMap: { value: null },
			displacementScale: { value: 1 },
			displacementBias: { value: 0 }

		},

		roughnessmap: {

			roughnessMap: { value: null }

		},

		metalnessmap: {

			metalnessMap: { value: null }

		},

		gradientmap: {

			gradientMap: { value: null }

		},

		fog: {

			fogDensity: { value: 0.00025 },
			fogNear: { value: 1 },
			fogFar: { value: 2000 },
			fogColor: { value: new Color( 0xffffff ) }

		},

		lights: {

			ambientLightColor: { value: [] },

			directionalLights: { value: [], properties: {
				direction: {},
				color: {},

				shadow: {},
				shadowBias: {},
				shadowRadius: {},
				shadowMapSize: {}
			} },

			directionalShadowMap: { value: [] },
			directionalShadowMatrix: { value: [] },

			spotLights: { value: [], properties: {
				color: {},
				position: {},
				direction: {},
				distance: {},
				coneCos: {},
				penumbraCos: {},
				decay: {},

				shadow: {},
				shadowBias: {},
				shadowRadius: {},
				shadowMapSize: {}
			} },

			spotShadowMap: { value: [] },
			spotShadowMatrix: { value: [] },

			pointLights: { value: [], properties: {
				color: {},
				position: {},
				decay: {},
				distance: {},

				shadow: {},
				shadowBias: {},
				shadowRadius: {},
				shadowMapSize: {},
				shadowCameraNear: {},
				shadowCameraFar: {}
			} },

			pointShadowMap: { value: [] },
			pointShadowMatrix: { value: [] },

			hemisphereLights: { value: [], properties: {
				direction: {},
				skyColor: {},
				groundColor: {}
			} },

			// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
			rectAreaLights: { value: [], properties: {
				color: {},
				position: {},
				width: {},
				height: {}
			} }

		},

		points: {

			diffuse: { value: new Color( 0xeeeeee ) },
			opacity: { value: 1.0 },
			size: { value: 1.0 },
			scale: { value: 1.0 },
			map: { value: null },
			uvTransform: { value: new Matrix3() }

		},

		sprite: {

			diffuse: { value: new Color( 0xeeeeee ) },
			opacity: { value: 1.0 },
			center: { value: new Vector2( 0.5, 0.5 ) },
			rotation: { value: 0.0 },
			map: { value: null },
			uvTransform: { value: new Matrix3() }

		}

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 * @author mikael emtinger / http://gomo.se/
	 */

	var ShaderLib = {

		basic: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.specularmap,
				UniformsLib.envmap,
				UniformsLib.aomap,
				UniformsLib.lightmap,
				UniformsLib.fog
			] ),

			vertexShader: ShaderChunk.meshbasic_vert,
			fragmentShader: ShaderChunk.meshbasic_frag

		},

		lambert: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.specularmap,
				UniformsLib.envmap,
				UniformsLib.aomap,
				UniformsLib.lightmap,
				UniformsLib.emissivemap,
				UniformsLib.fog,
				UniformsLib.lights,
				{
					emissive: { value: new Color( 0x000000 ) }
				}
			] ),

			vertexShader: ShaderChunk.meshlambert_vert,
			fragmentShader: ShaderChunk.meshlambert_frag

		},

		phong: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.specularmap,
				UniformsLib.envmap,
				UniformsLib.aomap,
				UniformsLib.lightmap,
				UniformsLib.emissivemap,
				UniformsLib.bumpmap,
				UniformsLib.normalmap,
				UniformsLib.displacementmap,
				UniformsLib.gradientmap,
				UniformsLib.fog,
				UniformsLib.lights,
				{
					emissive: { value: new Color( 0x000000 ) },
					specular: { value: new Color( 0x111111 ) },
					shininess: { value: 30 }
				}
			] ),

			vertexShader: ShaderChunk.meshphong_vert,
			fragmentShader: ShaderChunk.meshphong_frag

		},

		standard: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.envmap,
				UniformsLib.aomap,
				UniformsLib.lightmap,
				UniformsLib.emissivemap,
				UniformsLib.bumpmap,
				UniformsLib.normalmap,
				UniformsLib.displacementmap,
				UniformsLib.roughnessmap,
				UniformsLib.metalnessmap,
				UniformsLib.fog,
				UniformsLib.lights,
				{
					emissive: { value: new Color( 0x000000 ) },
					roughness: { value: 0.5 },
					metalness: { value: 0.5 },
					envMapIntensity: { value: 1 } // temporary
				}
			] ),

			vertexShader: ShaderChunk.meshphysical_vert,
			fragmentShader: ShaderChunk.meshphysical_frag

		},

		points: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.points,
				UniformsLib.fog
			] ),

			vertexShader: ShaderChunk.points_vert,
			fragmentShader: ShaderChunk.points_frag

		},

		dashed: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.fog,
				{
					scale: { value: 1 },
					dashSize: { value: 1 },
					totalSize: { value: 2 }
				}
			] ),

			vertexShader: ShaderChunk.linedashed_vert,
			fragmentShader: ShaderChunk.linedashed_frag

		},

		depth: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.displacementmap
			] ),

			vertexShader: ShaderChunk.depth_vert,
			fragmentShader: ShaderChunk.depth_frag

		},

		normal: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.bumpmap,
				UniformsLib.normalmap,
				UniformsLib.displacementmap,
				{
					opacity: { value: 1.0 }
				}
			] ),

			vertexShader: ShaderChunk.normal_vert,
			fragmentShader: ShaderChunk.normal_frag

		},

		sprite: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.sprite,
				UniformsLib.fog
			] ),

			vertexShader: ShaderChunk.sprite_vert,
			fragmentShader: ShaderChunk.sprite_frag

		},

		/* -------------------------------------------------------------------------
		//	Cube map shader
		 ------------------------------------------------------------------------- */

		cube: {

			uniforms: {
				tCube: { value: null },
				tFlip: { value: - 1 },
				opacity: { value: 1.0 }
			},

			vertexShader: ShaderChunk.cube_vert,
			fragmentShader: ShaderChunk.cube_frag

		},

		equirect: {

			uniforms: {
				tEquirect: { value: null },
			},

			vertexShader: ShaderChunk.equirect_vert,
			fragmentShader: ShaderChunk.equirect_frag

		},

		distanceRGBA: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.displacementmap,
				{
					referencePosition: { value: new Vector3() },
					nearDistance: { value: 1 },
					farDistance: { value: 1000 }
				}
			] ),

			vertexShader: ShaderChunk.distanceRGBA_vert,
			fragmentShader: ShaderChunk.distanceRGBA_frag

		},

		shadow: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.lights,
				UniformsLib.fog,
				{
					color: { value: new Color( 0x00000 ) },
					opacity: { value: 1.0 }
				},
			] ),

			vertexShader: ShaderChunk.shadow_vert,
			fragmentShader: ShaderChunk.shadow_frag

		}

	};

	ShaderLib.physical = {

		uniforms: UniformsUtils.merge( [
			ShaderLib.standard.uniforms,
			{
				clearCoat: { value: 0 },
				clearCoatRoughness: { value: 0 }
			}
		] ),

		vertexShader: ShaderChunk.meshphysical_vert,
		fragmentShader: ShaderChunk.meshphysical_frag

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLAnimation() {

		var context = null;
		var isAnimating = false;
		var animationLoop = null;

		function onAnimationFrame( time, frame ) {

			if ( isAnimating === false ) return;

			animationLoop( time, frame );

			context.requestAnimationFrame( onAnimationFrame );

		}

		return {

			start: function () {

				if ( isAnimating === true ) return;
				if ( animationLoop === null ) return;

				context.requestAnimationFrame( onAnimationFrame );

				isAnimating = true;

			},

			stop: function () {

				isAnimating = false;

			},

			setAnimationLoop: function ( callback ) {

				animationLoop = callback;

			},

			setContext: function ( value ) {

				context = value;

			}

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLAttributes( gl ) {

		var buffers = new WeakMap();

		function createBuffer( attribute, bufferType ) {

			var array = attribute.array;
			var usage = attribute.dynamic ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW;

			var buffer = gl.createBuffer();

			gl.bindBuffer( bufferType, buffer );
			gl.bufferData( bufferType, array, usage );

			attribute.onUploadCallback();

			var type = gl.FLOAT;

			if ( array instanceof Float32Array ) {

				type = gl.FLOAT;

			} else if ( array instanceof Float64Array ) {

				console.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' );

			} else if ( array instanceof Uint16Array ) {

				type = gl.UNSIGNED_SHORT;

			} else if ( array instanceof Int16Array ) {

				type = gl.SHORT;

			} else if ( array instanceof Uint32Array ) {

				type = gl.UNSIGNED_INT;

			} else if ( array instanceof Int32Array ) {

				type = gl.INT;

			} else if ( array instanceof Int8Array ) {

				type = gl.BYTE;

			} else if ( array instanceof Uint8Array ) {

				type = gl.UNSIGNED_BYTE;

			}

			return {
				buffer: buffer,
				type: type,
				bytesPerElement: array.BYTES_PER_ELEMENT,
				version: attribute.version
			};

		}

		function updateBuffer( buffer, attribute, bufferType ) {

			var array = attribute.array;
			var updateRange = attribute.updateRange;

			gl.bindBuffer( bufferType, buffer );

			if ( attribute.dynamic === false ) {

				gl.bufferData( bufferType, array, gl.STATIC_DRAW );

			} else if ( updateRange.count === - 1 ) {

				// Not using update ranges

				gl.bufferSubData( bufferType, 0, array );

			} else if ( updateRange.count === 0 ) {

				console.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );

			} else {

				gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
					array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );

				updateRange.count = - 1; // reset range

			}

		}

		//

		function get( attribute ) {

			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

			return buffers.get( attribute );

		}

		function remove( attribute ) {

			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

			var data = buffers.get( attribute );

			if ( data ) {

				gl.deleteBuffer( data.buffer );

				buffers.delete( attribute );

			}

		}

		function update( attribute, bufferType ) {

			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

			var data = buffers.get( attribute );

			if ( data === undefined ) {

				buffers.set( attribute, createBuffer( attribute, bufferType ) );

			} else if ( data.version < attribute.version ) {

				updateBuffer( data.buffer, attribute, bufferType );

				data.version = attribute.version;

			}

		}

		return {

			get: get,
			remove: remove,
			update: update

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	 * @author bhouston / http://clara.io
	 */

	function Euler( x, y, z, order ) {

		this._x = x || 0;
		this._y = y || 0;
		this._z = z || 0;
		this._order = order || Euler.DefaultOrder;

	}

	Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];

	Euler.DefaultOrder = 'XYZ';

	Object.defineProperties( Euler.prototype, {

		x: {

			get: function () {

				return this._x;

			},

			set: function ( value ) {

				this._x = value;
				this.onChangeCallback();

			}

		},

		y: {

			get: function () {

				return this._y;

			},

			set: function ( value ) {

				this._y = value;
				this.onChangeCallback();

			}

		},

		z: {

			get: function () {

				return this._z;

			},

			set: function ( value ) {

				this._z = value;
				this.onChangeCallback();

			}

		},

		order: {

			get: function () {

				return this._order;

			},

			set: function ( value ) {

				this._order = value;
				this.onChangeCallback();

			}

		}

	} );

	Object.assign( Euler.prototype, {

		isEuler: true,

		set: function ( x, y, z, order ) {

			this._x = x;
			this._y = y;
			this._z = z;
			this._order = order || this._order;

			this.onChangeCallback();

			return this;

		},

		clone: function () {

			return new this.constructor( this._x, this._y, this._z, this._order );

		},

		copy: function ( euler ) {

			this._x = euler._x;
			this._y = euler._y;
			this._z = euler._z;
			this._order = euler._order;

			this.onChangeCallback();

			return this;

		},

		setFromRotationMatrix: function ( m, order, update ) {

			var clamp = _Math.clamp;

			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

			var te = m.elements;
			var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
			var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
			var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

			order = order || this._order;

			if ( order === 'XYZ' ) {

				this._y = Math.asin( clamp( m13, - 1, 1 ) );

				if ( Math.abs( m13 ) < 0.99999 ) {

					this._x = Math.atan2( - m23, m33 );
					this._z = Math.atan2( - m12, m11 );

				} else {

					this._x = Math.atan2( m32, m22 );
					this._z = 0;

				}

			} else if ( order === 'YXZ' ) {

				this._x = Math.asin( - clamp( m23, - 1, 1 ) );

				if ( Math.abs( m23 ) < 0.99999 ) {

					this._y = Math.atan2( m13, m33 );
					this._z = Math.atan2( m21, m22 );

				} else {

					this._y = Math.atan2( - m31, m11 );
					this._z = 0;

				}

			} else if ( order === 'ZXY' ) {

				this._x = Math.asin( clamp( m32, - 1, 1 ) );

				if ( Math.abs( m32 ) < 0.99999 ) {

					this._y = Math.atan2( - m31, m33 );
					this._z = Math.atan2( - m12, m22 );

				} else {

					this._y = 0;
					this._z = Math.atan2( m21, m11 );

				}

			} else if ( order === 'ZYX' ) {

				this._y = Math.asin( - clamp( m31, - 1, 1 ) );

				if ( Math.abs( m31 ) < 0.99999 ) {

					this._x = Math.atan2( m32, m33 );
					this._z = Math.atan2( m21, m11 );

				} else {

					this._x = 0;
					this._z = Math.atan2( - m12, m22 );

				}

			} else if ( order === 'YZX' ) {

				this._z = Math.asin( clamp( m21, - 1, 1 ) );

				if ( Math.abs( m21 ) < 0.99999 ) {

					this._x = Math.atan2( - m23, m22 );
					this._y = Math.atan2( - m31, m11 );

				} else {

					this._x = 0;
					this._y = Math.atan2( m13, m33 );

				}

			} else if ( order === 'XZY' ) {

				this._z = Math.asin( - clamp( m12, - 1, 1 ) );

				if ( Math.abs( m12 ) < 0.99999 ) {

					this._x = Math.atan2( m32, m22 );
					this._y = Math.atan2( m13, m11 );

				} else {

					this._x = Math.atan2( - m23, m33 );
					this._y = 0;

				}

			} else {

				console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );

			}

			this._order = order;

			if ( update !== false ) this.onChangeCallback();

			return this;

		},

		setFromQuaternion: function () {

			var matrix = new Matrix4();

			return function setFromQuaternion( q, order, update ) {

				matrix.makeRotationFromQuaternion( q );

				return this.setFromRotationMatrix( matrix, order, update );

			};

		}(),

		setFromVector3: function ( v, order ) {

			return this.set( v.x, v.y, v.z, order || this._order );

		},

		reorder: function () {

			// WARNING: this discards revolution information -bhouston

			var q = new Quaternion();

			return function reorder( newOrder ) {

				q.setFromEuler( this );

				return this.setFromQuaternion( q, newOrder );

			};

		}(),

		equals: function ( euler ) {

			return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );

		},

		fromArray: function ( array ) {

			this._x = array[ 0 ];
			this._y = array[ 1 ];
			this._z = array[ 2 ];
			if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];

			this.onChangeCallback();

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this._x;
			array[ offset + 1 ] = this._y;
			array[ offset + 2 ] = this._z;
			array[ offset + 3 ] = this._order;

			return array;

		},

		toVector3: function ( optionalResult ) {

			if ( optionalResult ) {

				return optionalResult.set( this._x, this._y, this._z );

			} else {

				return new Vector3( this._x, this._y, this._z );

			}

		},

		onChange: function ( callback ) {

			this.onChangeCallback = callback;

			return this;

		},

		onChangeCallback: function () {}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Layers() {

		this.mask = 1 | 0;

	}

	Object.assign( Layers.prototype, {

		set: function ( channel ) {

			this.mask = 1 << channel | 0;

		},

		enable: function ( channel ) {

			this.mask |= 1 << channel | 0;

		},

		toggle: function ( channel ) {

			this.mask ^= 1 << channel | 0;

		},

		disable: function ( channel ) {

			this.mask &= ~ ( 1 << channel | 0 );

		},

		test: function ( layers ) {

			return ( this.mask & layers.mask ) !== 0;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author WestLangley / http://github.com/WestLangley
	 * @author elephantatwork / www.elephantatwork.ch
	 */

	var object3DId = 0;

	function Object3D() {

		Object.defineProperty( this, 'id', { value: object3DId ++ } );

		this.uuid = _Math.generateUUID();

		this.name = '';
		this.type = 'Object3D';

		this.parent = null;
		this.children = [];

		this.up = Object3D.DefaultUp.clone();

		var position = new Vector3();
		var rotation = new Euler();
		var quaternion = new Quaternion();
		var scale = new Vector3( 1, 1, 1 );

		function onRotationChange() {

			quaternion.setFromEuler( rotation, false );

		}

		function onQuaternionChange() {

			rotation.setFromQuaternion( quaternion, undefined, false );

		}

		rotation.onChange( onRotationChange );
		quaternion.onChange( onQuaternionChange );

		Object.defineProperties( this, {
			position: {
				enumerable: true,
				value: position
			},
			rotation: {
				enumerable: true,
				value: rotation
			},
			quaternion: {
				enumerable: true,
				value: quaternion
			},
			scale: {
				enumerable: true,
				value: scale
			},
			modelViewMatrix: {
				value: new Matrix4()
			},
			normalMatrix: {
				value: new Matrix3()
			}
		} );

		this.matrix = new Matrix4();
		this.matrixWorld = new Matrix4();

		this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
		this.matrixWorldNeedsUpdate = false;

		this.layers = new Layers();
		this.visible = true;

		this.castShadow = false;
		this.receiveShadow = false;

		this.frustumCulled = true;
		this.renderOrder = 0;

		this.userData = {};

	}

	Object3D.DefaultUp = new Vector3( 0, 1, 0 );
	Object3D.DefaultMatrixAutoUpdate = true;

	Object3D.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {

		constructor: Object3D,

		isObject3D: true,

		onBeforeRender: function () {},
		onAfterRender: function () {},

		applyMatrix: function ( matrix ) {

			this.matrix.multiplyMatrices( matrix, this.matrix );

			this.matrix.decompose( this.position, this.quaternion, this.scale );

		},

		applyQuaternion: function ( q ) {

			this.quaternion.premultiply( q );

			return this;

		},

		setRotationFromAxisAngle: function ( axis, angle ) {

			// assumes axis is normalized

			this.quaternion.setFromAxisAngle( axis, angle );

		},

		setRotationFromEuler: function ( euler ) {

			this.quaternion.setFromEuler( euler, true );

		},

		setRotationFromMatrix: function ( m ) {

			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

			this.quaternion.setFromRotationMatrix( m );

		},

		setRotationFromQuaternion: function ( q ) {

			// assumes q is normalized

			this.quaternion.copy( q );

		},

		rotateOnAxis: function () {

			// rotate object on axis in object space
			// axis is assumed to be normalized

			var q1 = new Quaternion();

			return function rotateOnAxis( axis, angle ) {

				q1.setFromAxisAngle( axis, angle );

				this.quaternion.multiply( q1 );

				return this;

			};

		}(),

		rotateOnWorldAxis: function () {

			// rotate object on axis in world space
			// axis is assumed to be normalized
			// method assumes no rotated parent

			var q1 = new Quaternion();

			return function rotateOnWorldAxis( axis, angle ) {

				q1.setFromAxisAngle( axis, angle );

				this.quaternion.premultiply( q1 );

				return this;

			};

		}(),

		rotateX: function () {

			var v1 = new Vector3( 1, 0, 0 );

			return function rotateX( angle ) {

				return this.rotateOnAxis( v1, angle );

			};

		}(),

		rotateY: function () {

			var v1 = new Vector3( 0, 1, 0 );

			return function rotateY( angle ) {

				return this.rotateOnAxis( v1, angle );

			};

		}(),

		rotateZ: function () {

			var v1 = new Vector3( 0, 0, 1 );

			return function rotateZ( angle ) {

				return this.rotateOnAxis( v1, angle );

			};

		}(),

		translateOnAxis: function () {

			// translate object by distance along axis in object space
			// axis is assumed to be normalized

			var v1 = new Vector3();

			return function translateOnAxis( axis, distance ) {

				v1.copy( axis ).applyQuaternion( this.quaternion );

				this.position.add( v1.multiplyScalar( distance ) );

				return this;

			};

		}(),

		translateX: function () {

			var v1 = new Vector3( 1, 0, 0 );

			return function translateX( distance ) {

				return this.translateOnAxis( v1, distance );

			};

		}(),

		translateY: function () {

			var v1 = new Vector3( 0, 1, 0 );

			return function translateY( distance ) {

				return this.translateOnAxis( v1, distance );

			};

		}(),

		translateZ: function () {

			var v1 = new Vector3( 0, 0, 1 );

			return function translateZ( distance ) {

				return this.translateOnAxis( v1, distance );

			};

		}(),

		localToWorld: function ( vector ) {

			return vector.applyMatrix4( this.matrixWorld );

		},

		worldToLocal: function () {

			var m1 = new Matrix4();

			return function worldToLocal( vector ) {

				return vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );

			};

		}(),

		lookAt: function () {

			// This method does not support objects with rotated and/or translated parent(s)

			var m1 = new Matrix4();
			var vector = new Vector3();

			return function lookAt( x, y, z ) {

				if ( x.isVector3 ) {

					vector.copy( x );

				} else {

					vector.set( x, y, z );

				}

				if ( this.isCamera ) {

					m1.lookAt( this.position, vector, this.up );

				} else {

					m1.lookAt( vector, this.position, this.up );

				}

				this.quaternion.setFromRotationMatrix( m1 );

			};

		}(),

		add: function ( object ) {

			if ( arguments.length > 1 ) {

				for ( var i = 0; i < arguments.length; i ++ ) {

					this.add( arguments[ i ] );

				}

				return this;

			}

			if ( object === this ) {

				console.error( "THREE.Object3D.add: object can't be added as a child of itself.", object );
				return this;

			}

			if ( ( object && object.isObject3D ) ) {

				if ( object.parent !== null ) {

					object.parent.remove( object );

				}

				object.parent = this;
				object.dispatchEvent( { type: 'added' } );

				this.children.push( object );

			} else {

				console.error( "THREE.Object3D.add: object not an instance of THREE.Object3D.", object );

			}

			return this;

		},

		remove: function ( object ) {

			if ( arguments.length > 1 ) {

				for ( var i = 0; i < arguments.length; i ++ ) {

					this.remove( arguments[ i ] );

				}

				return this;

			}

			var index = this.children.indexOf( object );

			if ( index !== - 1 ) {

				object.parent = null;

				object.dispatchEvent( { type: 'removed' } );

				this.children.splice( index, 1 );

			}

			return this;

		},

		getObjectById: function ( id ) {

			return this.getObjectByProperty( 'id', id );

		},

		getObjectByName: function ( name ) {

			return this.getObjectByProperty( 'name', name );

		},

		getObjectByProperty: function ( name, value ) {

			if ( this[ name ] === value ) return this;

			for ( var i = 0, l = this.children.length; i < l; i ++ ) {

				var child = this.children[ i ];
				var object = child.getObjectByProperty( name, value );

				if ( object !== undefined ) {

					return object;

				}

			}

			return undefined;

		},

		getWorldPosition: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Object3D: .getWorldPosition() target is now required' );
				target = new Vector3();

			}

			this.updateMatrixWorld( true );

			return target.setFromMatrixPosition( this.matrixWorld );

		},

		getWorldQuaternion: function () {

			var position = new Vector3();
			var scale = new Vector3();

			return function getWorldQuaternion( target ) {

				if ( target === undefined ) {

					console.warn( 'THREE.Object3D: .getWorldQuaternion() target is now required' );
					target = new Quaternion();

				}

				this.updateMatrixWorld( true );

				this.matrixWorld.decompose( position, target, scale );

				return target;

			};

		}(),

		getWorldScale: function () {

			var position = new Vector3();
			var quaternion = new Quaternion();

			return function getWorldScale( target ) {

				if ( target === undefined ) {

					console.warn( 'THREE.Object3D: .getWorldScale() target is now required' );
					target = new Vector3();

				}

				this.updateMatrixWorld( true );

				this.matrixWorld.decompose( position, quaternion, target );

				return target;

			};

		}(),

		getWorldDirection: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Object3D: .getWorldDirection() target is now required' );
				target = new Vector3();

			}

			this.updateMatrixWorld( true );

			var e = this.matrixWorld.elements;

			return target.set( e[ 8 ], e[ 9 ], e[ 10 ] ).normalize();

		},

		raycast: function () {},

		traverse: function ( callback ) {

			callback( this );

			var children = this.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				children[ i ].traverse( callback );

			}

		},

		traverseVisible: function ( callback ) {

			if ( this.visible === false ) return;

			callback( this );

			var children = this.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				children[ i ].traverseVisible( callback );

			}

		},

		traverseAncestors: function ( callback ) {

			var parent = this.parent;

			if ( parent !== null ) {

				callback( parent );

				parent.traverseAncestors( callback );

			}

		},

		updateMatrix: function () {

			this.matrix.compose( this.position, this.quaternion, this.scale );

			this.matrixWorldNeedsUpdate = true;

		},

		updateMatrixWorld: function ( force ) {

			if ( this.matrixAutoUpdate ) this.updateMatrix();

			if ( this.matrixWorldNeedsUpdate || force ) {

				if ( this.parent === null ) {

					this.matrixWorld.copy( this.matrix );

				} else {

					this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );

				}

				this.matrixWorldNeedsUpdate = false;

				force = true;

			}

			// update children

			var children = this.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				children[ i ].updateMatrixWorld( force );

			}

		},

		toJSON: function ( meta ) {

			// meta is a string when called from JSON.stringify
			var isRootObject = ( meta === undefined || typeof meta === 'string' );

			var output = {};

			// meta is a hash used to collect geometries, materials.
			// not providing it implies that this is the root object
			// being serialized.
			if ( isRootObject ) {

				// initialize meta obj
				meta = {
					geometries: {},
					materials: {},
					textures: {},
					images: {},
					shapes: {}
				};

				output.metadata = {
					version: 4.5,
					type: 'Object',
					generator: 'Object3D.toJSON'
				};

			}

			// standard Object3D serialization

			var object = {};

			object.uuid = this.uuid;
			object.type = this.type;

			if ( this.name !== '' ) object.name = this.name;
			if ( this.castShadow === true ) object.castShadow = true;
			if ( this.receiveShadow === true ) object.receiveShadow = true;
			if ( this.visible === false ) object.visible = false;
			if ( this.frustumCulled === false ) object.frustumCulled = false;
			if ( this.renderOrder !== 0 ) object.renderOrder = this.renderOrder;
			if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;

			object.layers = this.layers.mask;
			object.matrix = this.matrix.toArray();

			if ( this.matrixAutoUpdate === false ) object.matrixAutoUpdate = false;

			//

			function serialize( library, element ) {

				if ( library[ element.uuid ] === undefined ) {

					library[ element.uuid ] = element.toJSON( meta );

				}

				return element.uuid;

			}

			if ( this.isMesh || this.isLine || this.isPoints ) {

				object.geometry = serialize( meta.geometries, this.geometry );

				var parameters = this.geometry.parameters;

				if ( parameters !== undefined && parameters.shapes !== undefined ) {

					var shapes = parameters.shapes;

					if ( Array.isArray( shapes ) ) {

						for ( var i = 0, l = shapes.length; i < l; i ++ ) {

							var shape = shapes[ i ];

							serialize( meta.shapes, shape );

						}

					} else {

						serialize( meta.shapes, shapes );

					}

				}

			}

			if ( this.material !== undefined ) {

				if ( Array.isArray( this.material ) ) {

					var uuids = [];

					for ( var i = 0, l = this.material.length; i < l; i ++ ) {

						uuids.push( serialize( meta.materials, this.material[ i ] ) );

					}

					object.material = uuids;

				} else {

					object.material = serialize( meta.materials, this.material );

				}

			}

			//

			if ( this.children.length > 0 ) {

				object.children = [];

				for ( var i = 0; i < this.children.length; i ++ ) {

					object.children.push( this.children[ i ].toJSON( meta ).object );

				}

			}

			if ( isRootObject ) {

				var geometries = extractFromCache( meta.geometries );
				var materials = extractFromCache( meta.materials );
				var textures = extractFromCache( meta.textures );
				var images = extractFromCache( meta.images );
				var shapes = extractFromCache( meta.shapes );

				if ( geometries.length > 0 ) output.geometries = geometries;
				if ( materials.length > 0 ) output.materials = materials;
				if ( textures.length > 0 ) output.textures = textures;
				if ( images.length > 0 ) output.images = images;
				if ( shapes.length > 0 ) output.shapes = shapes;

			}

			output.object = object;

			return output;

			// extract data from the cache hash
			// remove metadata on each item
			// and return as array
			function extractFromCache( cache ) {

				var values = [];
				for ( var key in cache ) {

					var data = cache[ key ];
					delete data.metadata;
					values.push( data );

				}
				return values;

			}

		},

		clone: function ( recursive ) {

			return new this.constructor().copy( this, recursive );

		},

		copy: function ( source, recursive ) {

			if ( recursive === undefined ) recursive = true;

			this.name = source.name;

			this.up.copy( source.up );

			this.position.copy( source.position );
			this.quaternion.copy( source.quaternion );
			this.scale.copy( source.scale );

			this.matrix.copy( source.matrix );
			this.matrixWorld.copy( source.matrixWorld );

			this.matrixAutoUpdate = source.matrixAutoUpdate;
			this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;

			this.layers.mask = source.layers.mask;
			this.visible = source.visible;

			this.castShadow = source.castShadow;
			this.receiveShadow = source.receiveShadow;

			this.frustumCulled = source.frustumCulled;
			this.renderOrder = source.renderOrder;

			this.userData = JSON.parse( JSON.stringify( source.userData ) );

			if ( recursive === true ) {

				for ( var i = 0; i < source.children.length; i ++ ) {

					var child = source.children[ i ];
					this.add( child.clone() );

				}

			}

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author WestLangley / http://github.com/WestLangley
	*/

	function Camera() {

		Object3D.call( this );

		this.type = 'Camera';

		this.matrixWorldInverse = new Matrix4();
		this.projectionMatrix = new Matrix4();

	}

	Camera.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Camera,

		isCamera: true,

		copy: function ( source, recursive ) {

			Object3D.prototype.copy.call( this, source, recursive );

			this.matrixWorldInverse.copy( source.matrixWorldInverse );
			this.projectionMatrix.copy( source.projectionMatrix );

			return this;

		},

		getWorldDirection: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Camera: .getWorldDirection() target is now required' );
				target = new Vector3();

			}

			this.updateMatrixWorld( true );

			var e = this.matrixWorld.elements;

			return target.set( - e[ 8 ], - e[ 9 ], - e[ 10 ] ).normalize();

		},

		updateMatrixWorld: function ( force ) {

			Object3D.prototype.updateMatrixWorld.call( this, force );

			this.matrixWorldInverse.getInverse( this.matrixWorld );

		},

		clone: function () {

			return new this.constructor().copy( this );

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author arose / http://github.com/arose
	 */

	function OrthographicCamera( left, right, top, bottom, near, far ) {

		Camera.call( this );

		this.type = 'OrthographicCamera';

		this.zoom = 1;
		this.view = null;

		this.left = left;
		this.right = right;
		this.top = top;
		this.bottom = bottom;

		this.near = ( near !== undefined ) ? near : 0.1;
		this.far = ( far !== undefined ) ? far : 2000;

		this.updateProjectionMatrix();

	}

	OrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), {

		constructor: OrthographicCamera,

		isOrthographicCamera: true,

		copy: function ( source, recursive ) {

			Camera.prototype.copy.call( this, source, recursive );

			this.left = source.left;
			this.right = source.right;
			this.top = source.top;
			this.bottom = source.bottom;
			this.near = source.near;
			this.far = source.far;

			this.zoom = source.zoom;
			this.view = source.view === null ? null : Object.assign( {}, source.view );

			return this;

		},

		setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {

			if ( this.view === null ) {

				this.view = {
					enabled: true,
					fullWidth: 1,
					fullHeight: 1,
					offsetX: 0,
					offsetY: 0,
					width: 1,
					height: 1
				};

			}

			this.view.enabled = true;
			this.view.fullWidth = fullWidth;
			this.view.fullHeight = fullHeight;
			this.view.offsetX = x;
			this.view.offsetY = y;
			this.view.width = width;
			this.view.height = height;

			this.updateProjectionMatrix();

		},

		clearViewOffset: function () {

			if ( this.view !== null ) {

				this.view.enabled = false;

			}

			this.updateProjectionMatrix();

		},

		updateProjectionMatrix: function () {

			var dx = ( this.right - this.left ) / ( 2 * this.zoom );
			var dy = ( this.top - this.bottom ) / ( 2 * this.zoom );
			var cx = ( this.right + this.left ) / 2;
			var cy = ( this.top + this.bottom ) / 2;

			var left = cx - dx;
			var right = cx + dx;
			var top = cy + dy;
			var bottom = cy - dy;

			if ( this.view !== null && this.view.enabled ) {

				var zoomW = this.zoom / ( this.view.width / this.view.fullWidth );
				var zoomH = this.zoom / ( this.view.height / this.view.fullHeight );
				var scaleW = ( this.right - this.left ) / this.view.width;
				var scaleH = ( this.top - this.bottom ) / this.view.height;

				left += scaleW * ( this.view.offsetX / zoomW );
				right = left + scaleW * ( this.view.width / zoomW );
				top -= scaleH * ( this.view.offsetY / zoomH );
				bottom = top - scaleH * ( this.view.height / zoomH );

			}

			this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );

		},

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			data.object.zoom = this.zoom;
			data.object.left = this.left;
			data.object.right = this.right;
			data.object.top = this.top;
			data.object.bottom = this.bottom;
			data.object.near = this.near;
			data.object.far = this.far;

			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );

			return data;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Face3( a, b, c, normal, color, materialIndex ) {

		this.a = a;
		this.b = b;
		this.c = c;

		this.normal = ( normal && normal.isVector3 ) ? normal : new Vector3();
		this.vertexNormals = Array.isArray( normal ) ? normal : [];

		this.color = ( color && color.isColor ) ? color : new Color();
		this.vertexColors = Array.isArray( color ) ? color : [];

		this.materialIndex = materialIndex !== undefined ? materialIndex : 0;

	}

	Object.assign( Face3.prototype, {

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( source ) {

			this.a = source.a;
			this.b = source.b;
			this.c = source.c;

			this.normal.copy( source.normal );
			this.color.copy( source.color );

			this.materialIndex = source.materialIndex;

			for ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {

				this.vertexNormals[ i ] = source.vertexNormals[ i ].clone();

			}

			for ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {

				this.vertexColors[ i ] = source.vertexColors[ i ].clone();

			}

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author kile / http://kile.stravaganza.org/
	 * @author alteredq / http://alteredqualia.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * @author bhouston / http://clara.io
	 */

	var geometryId = 0; // Geometry uses even numbers as Id

	function Geometry() {

		Object.defineProperty( this, 'id', { value: geometryId += 2 } );

		this.uuid = _Math.generateUUID();

		this.name = '';
		this.type = 'Geometry';

		this.vertices = [];
		this.colors = [];
		this.faces = [];
		this.faceVertexUvs = [[]];

		this.morphTargets = [];
		this.morphNormals = [];

		this.skinWeights = [];
		this.skinIndices = [];

		this.lineDistances = [];

		this.boundingBox = null;
		this.boundingSphere = null;

		// update flags

		this.elementsNeedUpdate = false;
		this.verticesNeedUpdate = false;
		this.uvsNeedUpdate = false;
		this.normalsNeedUpdate = false;
		this.colorsNeedUpdate = false;
		this.lineDistancesNeedUpdate = false;
		this.groupsNeedUpdate = false;

	}

	Geometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {

		constructor: Geometry,

		isGeometry: true,

		applyMatrix: function ( matrix ) {

			var normalMatrix = new Matrix3().getNormalMatrix( matrix );

			for ( var i = 0, il = this.vertices.length; i < il; i ++ ) {

				var vertex = this.vertices[ i ];
				vertex.applyMatrix4( matrix );

			}

			for ( var i = 0, il = this.faces.length; i < il; i ++ ) {

				var face = this.faces[ i ];
				face.normal.applyMatrix3( normalMatrix ).normalize();

				for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {

					face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();

				}

			}

			if ( this.boundingBox !== null ) {

				this.computeBoundingBox();

			}

			if ( this.boundingSphere !== null ) {

				this.computeBoundingSphere();

			}

			this.verticesNeedUpdate = true;
			this.normalsNeedUpdate = true;

			return this;

		},

		rotateX: function () {

			// rotate geometry around world x-axis

			var m1 = new Matrix4();

			return function rotateX( angle ) {

				m1.makeRotationX( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		rotateY: function () {

			// rotate geometry around world y-axis

			var m1 = new Matrix4();

			return function rotateY( angle ) {

				m1.makeRotationY( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		rotateZ: function () {

			// rotate geometry around world z-axis

			var m1 = new Matrix4();

			return function rotateZ( angle ) {

				m1.makeRotationZ( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		translate: function () {

			// translate geometry

			var m1 = new Matrix4();

			return function translate( x, y, z ) {

				m1.makeTranslation( x, y, z );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		scale: function () {

			// scale geometry

			var m1 = new Matrix4();

			return function scale( x, y, z ) {

				m1.makeScale( x, y, z );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		lookAt: function () {

			var obj = new Object3D();

			return function lookAt( vector ) {

				obj.lookAt( vector );

				obj.updateMatrix();

				this.applyMatrix( obj.matrix );

			};

		}(),

		fromBufferGeometry: function ( geometry ) {

			var scope = this;

			var indices = geometry.index !== null ? geometry.index.array : undefined;
			var attributes = geometry.attributes;

			var positions = attributes.position.array;
			var normals = attributes.normal !== undefined ? attributes.normal.array : undefined;
			var colors = attributes.color !== undefined ? attributes.color.array : undefined;
			var uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;
			var uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;

			if ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];

			var tempNormals = [];
			var tempUVs = [];
			var tempUVs2 = [];

			for ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) {

				scope.vertices.push( new Vector3( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ) );

				if ( normals !== undefined ) {

					tempNormals.push( new Vector3( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ) );

				}

				if ( colors !== undefined ) {

					scope.colors.push( new Color( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] ) );

				}

				if ( uvs !== undefined ) {

					tempUVs.push( new Vector2( uvs[ j ], uvs[ j + 1 ] ) );

				}

				if ( uvs2 !== undefined ) {

					tempUVs2.push( new Vector2( uvs2[ j ], uvs2[ j + 1 ] ) );

				}

			}

			function addFace( a, b, c, materialIndex ) {

				var vertexNormals = normals !== undefined ? [ tempNormals[ a ].clone(), tempNormals[ b ].clone(), tempNormals[ c ].clone() ] : [];
				var vertexColors = colors !== undefined ? [ scope.colors[ a ].clone(), scope.colors[ b ].clone(), scope.colors[ c ].clone() ] : [];

				var face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex );

				scope.faces.push( face );

				if ( uvs !== undefined ) {

					scope.faceVertexUvs[ 0 ].push( [ tempUVs[ a ].clone(), tempUVs[ b ].clone(), tempUVs[ c ].clone() ] );

				}

				if ( uvs2 !== undefined ) {

					scope.faceVertexUvs[ 1 ].push( [ tempUVs2[ a ].clone(), tempUVs2[ b ].clone(), tempUVs2[ c ].clone() ] );

				}

			}

			var groups = geometry.groups;

			if ( groups.length > 0 ) {

				for ( var i = 0; i < groups.length; i ++ ) {

					var group = groups[ i ];

					var start = group.start;
					var count = group.count;

					for ( var j = start, jl = start + count; j < jl; j += 3 ) {

						if ( indices !== undefined ) {

							addFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex );

						} else {

							addFace( j, j + 1, j + 2, group.materialIndex );

						}

					}

				}

			} else {

				if ( indices !== undefined ) {

					for ( var i = 0; i < indices.length; i += 3 ) {

						addFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );

					}

				} else {

					for ( var i = 0; i < positions.length / 3; i += 3 ) {

						addFace( i, i + 1, i + 2 );

					}

				}

			}

			this.computeFaceNormals();

			if ( geometry.boundingBox !== null ) {

				this.boundingBox = geometry.boundingBox.clone();

			}

			if ( geometry.boundingSphere !== null ) {

				this.boundingSphere = geometry.boundingSphere.clone();

			}

			return this;

		},

		center: function () {

			var offset = new Vector3();

			return function center() {

				this.computeBoundingBox();

				this.boundingBox.getCenter( offset ).negate();

				this.translate( offset.x, offset.y, offset.z );

				return this;

			};

		}(),

		normalize: function () {

			this.computeBoundingSphere();

			var center = this.boundingSphere.center;
			var radius = this.boundingSphere.radius;

			var s = radius === 0 ? 1 : 1.0 / radius;

			var matrix = new Matrix4();
			matrix.set(
				s, 0, 0, - s * center.x,
				0, s, 0, - s * center.y,
				0, 0, s, - s * center.z,
				0, 0, 0, 1
			);

			this.applyMatrix( matrix );

			return this;

		},

		computeFaceNormals: function () {

			var cb = new Vector3(), ab = new Vector3();

			for ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {

				var face = this.faces[ f ];

				var vA = this.vertices[ face.a ];
				var vB = this.vertices[ face.b ];
				var vC = this.vertices[ face.c ];

				cb.subVectors( vC, vB );
				ab.subVectors( vA, vB );
				cb.cross( ab );

				cb.normalize();

				face.normal.copy( cb );

			}

		},

		computeVertexNormals: function ( areaWeighted ) {

			if ( areaWeighted === undefined ) areaWeighted = true;

			var v, vl, f, fl, face, vertices;

			vertices = new Array( this.vertices.length );

			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {

				vertices[ v ] = new Vector3();

			}

			if ( areaWeighted ) {

				// vertex normals weighted by triangle areas
				// http://www.iquilezles.org/www/articles/normals/normals.htm

				var vA, vB, vC;
				var cb = new Vector3(), ab = new Vector3();

				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

					face = this.faces[ f ];

					vA = this.vertices[ face.a ];
					vB = this.vertices[ face.b ];
					vC = this.vertices[ face.c ];

					cb.subVectors( vC, vB );
					ab.subVectors( vA, vB );
					cb.cross( ab );

					vertices[ face.a ].add( cb );
					vertices[ face.b ].add( cb );
					vertices[ face.c ].add( cb );

				}

			} else {

				this.computeFaceNormals();

				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

					face = this.faces[ f ];

					vertices[ face.a ].add( face.normal );
					vertices[ face.b ].add( face.normal );
					vertices[ face.c ].add( face.normal );

				}

			}

			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {

				vertices[ v ].normalize();

			}

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				var vertexNormals = face.vertexNormals;

				if ( vertexNormals.length === 3 ) {

					vertexNormals[ 0 ].copy( vertices[ face.a ] );
					vertexNormals[ 1 ].copy( vertices[ face.b ] );
					vertexNormals[ 2 ].copy( vertices[ face.c ] );

				} else {

					vertexNormals[ 0 ] = vertices[ face.a ].clone();
					vertexNormals[ 1 ] = vertices[ face.b ].clone();
					vertexNormals[ 2 ] = vertices[ face.c ].clone();

				}

			}

			if ( this.faces.length > 0 ) {

				this.normalsNeedUpdate = true;

			}

		},

		computeFlatVertexNormals: function () {

			var f, fl, face;

			this.computeFaceNormals();

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				var vertexNormals = face.vertexNormals;

				if ( vertexNormals.length === 3 ) {

					vertexNormals[ 0 ].copy( face.normal );
					vertexNormals[ 1 ].copy( face.normal );
					vertexNormals[ 2 ].copy( face.normal );

				} else {

					vertexNormals[ 0 ] = face.normal.clone();
					vertexNormals[ 1 ] = face.normal.clone();
					vertexNormals[ 2 ] = face.normal.clone();

				}

			}

			if ( this.faces.length > 0 ) {

				this.normalsNeedUpdate = true;

			}

		},

		computeMorphNormals: function () {

			var i, il, f, fl, face;

			// save original normals
			// - create temp variables on first access
			//   otherwise just copy (for faster repeated calls)

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				if ( ! face.__originalFaceNormal ) {

					face.__originalFaceNormal = face.normal.clone();

				} else {

					face.__originalFaceNormal.copy( face.normal );

				}

				if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];

				for ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {

					if ( ! face.__originalVertexNormals[ i ] ) {

						face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();

					} else {

						face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );

					}

				}

			}

			// use temp geometry to compute face and vertex normals for each morph

			var tmpGeo = new Geometry();
			tmpGeo.faces = this.faces;

			for ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {

				// create on first access

				if ( ! this.morphNormals[ i ] ) {

					this.morphNormals[ i ] = {};
					this.morphNormals[ i ].faceNormals = [];
					this.morphNormals[ i ].vertexNormals = [];

					var dstNormalsFace = this.morphNormals[ i ].faceNormals;
					var dstNormalsVertex = this.morphNormals[ i ].vertexNormals;

					var faceNormal, vertexNormals;

					for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

						faceNormal = new Vector3();
						vertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() };

						dstNormalsFace.push( faceNormal );
						dstNormalsVertex.push( vertexNormals );

					}

				}

				var morphNormals = this.morphNormals[ i ];

				// set vertices to morph target

				tmpGeo.vertices = this.morphTargets[ i ].vertices;

				// compute morph normals

				tmpGeo.computeFaceNormals();
				tmpGeo.computeVertexNormals();

				// store morph normals

				var faceNormal, vertexNormals;

				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

					face = this.faces[ f ];

					faceNormal = morphNormals.faceNormals[ f ];
					vertexNormals = morphNormals.vertexNormals[ f ];

					faceNormal.copy( face.normal );

					vertexNormals.a.copy( face.vertexNormals[ 0 ] );
					vertexNormals.b.copy( face.vertexNormals[ 1 ] );
					vertexNormals.c.copy( face.vertexNormals[ 2 ] );

				}

			}

			// restore original normals

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				face.normal = face.__originalFaceNormal;
				face.vertexNormals = face.__originalVertexNormals;

			}

		},

		computeBoundingBox: function () {

			if ( this.boundingBox === null ) {

				this.boundingBox = new Box3();

			}

			this.boundingBox.setFromPoints( this.vertices );

		},

		computeBoundingSphere: function () {

			if ( this.boundingSphere === null ) {

				this.boundingSphere = new Sphere();

			}

			this.boundingSphere.setFromPoints( this.vertices );

		},

		merge: function ( geometry, matrix, materialIndexOffset ) {

			if ( ! ( geometry && geometry.isGeometry ) ) {

				console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );
				return;

			}

			var normalMatrix,
				vertexOffset = this.vertices.length,
				vertices1 = this.vertices,
				vertices2 = geometry.vertices,
				faces1 = this.faces,
				faces2 = geometry.faces,
				uvs1 = this.faceVertexUvs[ 0 ],
				uvs2 = geometry.faceVertexUvs[ 0 ],
				colors1 = this.colors,
				colors2 = geometry.colors;

			if ( materialIndexOffset === undefined ) materialIndexOffset = 0;

			if ( matrix !== undefined ) {

				normalMatrix = new Matrix3().getNormalMatrix( matrix );

			}

			// vertices

			for ( var i = 0, il = vertices2.length; i < il; i ++ ) {

				var vertex = vertices2[ i ];

				var vertexCopy = vertex.clone();

				if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );

				vertices1.push( vertexCopy );

			}

			// colors

			for ( var i = 0, il = colors2.length; i < il; i ++ ) {

				colors1.push( colors2[ i ].clone() );

			}

			// faces

			for ( i = 0, il = faces2.length; i < il; i ++ ) {

				var face = faces2[ i ], faceCopy, normal, color,
					faceVertexNormals = face.vertexNormals,
					faceVertexColors = face.vertexColors;

				faceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );
				faceCopy.normal.copy( face.normal );

				if ( normalMatrix !== undefined ) {

					faceCopy.normal.applyMatrix3( normalMatrix ).normalize();

				}

				for ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {

					normal = faceVertexNormals[ j ].clone();

					if ( normalMatrix !== undefined ) {

						normal.applyMatrix3( normalMatrix ).normalize();

					}

					faceCopy.vertexNormals.push( normal );

				}

				faceCopy.color.copy( face.color );

				for ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {

					color = faceVertexColors[ j ];
					faceCopy.vertexColors.push( color.clone() );

				}

				faceCopy.materialIndex = face.materialIndex + materialIndexOffset;

				faces1.push( faceCopy );

			}

			// uvs

			for ( i = 0, il = uvs2.length; i < il; i ++ ) {

				var uv = uvs2[ i ], uvCopy = [];

				if ( uv === undefined ) {

					continue;

				}

				for ( var j = 0, jl = uv.length; j < jl; j ++ ) {

					uvCopy.push( uv[ j ].clone() );

				}

				uvs1.push( uvCopy );

			}

		},

		mergeMesh: function ( mesh ) {

			if ( ! ( mesh && mesh.isMesh ) ) {

				console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );
				return;

			}

			if ( mesh.matrixAutoUpdate ) mesh.updateMatrix();

			this.merge( mesh.geometry, mesh.matrix );

		},

		/*
		 * Checks for duplicate vertices with hashmap.
		 * Duplicated vertices are removed
		 * and faces' vertices are updated.
		 */

		mergeVertices: function () {

			var verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)
			var unique = [], changes = [];

			var v, key;
			var precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001
			var precision = Math.pow( 10, precisionPoints );
			var i, il, face;
			var indices, j, jl;

			for ( i = 0, il = this.vertices.length; i < il; i ++ ) {

				v = this.vertices[ i ];
				key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );

				if ( verticesMap[ key ] === undefined ) {

					verticesMap[ key ] = i;
					unique.push( this.vertices[ i ] );
					changes[ i ] = unique.length - 1;

				} else {

					//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
					changes[ i ] = changes[ verticesMap[ key ] ];

				}

			}


			// if faces are completely degenerate after merging vertices, we
			// have to remove them from the geometry.
			var faceIndicesToRemove = [];

			for ( i = 0, il = this.faces.length; i < il; i ++ ) {

				face = this.faces[ i ];

				face.a = changes[ face.a ];
				face.b = changes[ face.b ];
				face.c = changes[ face.c ];

				indices = [ face.a, face.b, face.c ];

				// if any duplicate vertices are found in a Face3
				// we have to remove the face as nothing can be saved
				for ( var n = 0; n < 3; n ++ ) {

					if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {

						faceIndicesToRemove.push( i );
						break;

					}

				}

			}

			for ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {

				var idx = faceIndicesToRemove[ i ];

				this.faces.splice( idx, 1 );

				for ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {

					this.faceVertexUvs[ j ].splice( idx, 1 );

				}

			}

			// Use unique set of vertices

			var diff = this.vertices.length - unique.length;
			this.vertices = unique;
			return diff;

		},

		setFromPoints: function ( points ) {

			this.vertices = [];

			for ( var i = 0, l = points.length; i < l; i ++ ) {

				var point = points[ i ];
				this.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );

			}

			return this;

		},

		sortFacesByMaterialIndex: function () {

			var faces = this.faces;
			var length = faces.length;

			// tag faces

			for ( var i = 0; i < length; i ++ ) {

				faces[ i ]._id = i;

			}

			// sort faces

			function materialIndexSort( a, b ) {

				return a.materialIndex - b.materialIndex;

			}

			faces.sort( materialIndexSort );

			// sort uvs

			var uvs1 = this.faceVertexUvs[ 0 ];
			var uvs2 = this.faceVertexUvs[ 1 ];

			var newUvs1, newUvs2;

			if ( uvs1 && uvs1.length === length ) newUvs1 = [];
			if ( uvs2 && uvs2.length === length ) newUvs2 = [];

			for ( var i = 0; i < length; i ++ ) {

				var id = faces[ i ]._id;

				if ( newUvs1 ) newUvs1.push( uvs1[ id ] );
				if ( newUvs2 ) newUvs2.push( uvs2[ id ] );

			}

			if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;
			if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;

		},

		toJSON: function () {

			var data = {
				metadata: {
					version: 4.5,
					type: 'Geometry',
					generator: 'Geometry.toJSON'
				}
			};

			// standard Geometry serialization

			data.uuid = this.uuid;
			data.type = this.type;
			if ( this.name !== '' ) data.name = this.name;

			if ( this.parameters !== undefined ) {

				var parameters = this.parameters;

				for ( var key in parameters ) {

					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];

				}

				return data;

			}

			var vertices = [];

			for ( var i = 0; i < this.vertices.length; i ++ ) {

				var vertex = this.vertices[ i ];
				vertices.push( vertex.x, vertex.y, vertex.z );

			}

			var faces = [];
			var normals = [];
			var normalsHash = {};
			var colors = [];
			var colorsHash = {};
			var uvs = [];
			var uvsHash = {};

			for ( var i = 0; i < this.faces.length; i ++ ) {

				var face = this.faces[ i ];

				var hasMaterial = true;
				var hasFaceUv = false; // deprecated
				var hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;
				var hasFaceNormal = face.normal.length() > 0;
				var hasFaceVertexNormal = face.vertexNormals.length > 0;
				var hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;
				var hasFaceVertexColor = face.vertexColors.length > 0;

				var faceType = 0;

				faceType = setBit( faceType, 0, 0 ); // isQuad
				faceType = setBit( faceType, 1, hasMaterial );
				faceType = setBit( faceType, 2, hasFaceUv );
				faceType = setBit( faceType, 3, hasFaceVertexUv );
				faceType = setBit( faceType, 4, hasFaceNormal );
				faceType = setBit( faceType, 5, hasFaceVertexNormal );
				faceType = setBit( faceType, 6, hasFaceColor );
				faceType = setBit( faceType, 7, hasFaceVertexColor );

				faces.push( faceType );
				faces.push( face.a, face.b, face.c );
				faces.push( face.materialIndex );

				if ( hasFaceVertexUv ) {

					var faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];

					faces.push(
						getUvIndex( faceVertexUvs[ 0 ] ),
						getUvIndex( faceVertexUvs[ 1 ] ),
						getUvIndex( faceVertexUvs[ 2 ] )
					);

				}

				if ( hasFaceNormal ) {

					faces.push( getNormalIndex( face.normal ) );

				}

				if ( hasFaceVertexNormal ) {

					var vertexNormals = face.vertexNormals;

					faces.push(
						getNormalIndex( vertexNormals[ 0 ] ),
						getNormalIndex( vertexNormals[ 1 ] ),
						getNormalIndex( vertexNormals[ 2 ] )
					);

				}

				if ( hasFaceColor ) {

					faces.push( getColorIndex( face.color ) );

				}

				if ( hasFaceVertexColor ) {

					var vertexColors = face.vertexColors;

					faces.push(
						getColorIndex( vertexColors[ 0 ] ),
						getColorIndex( vertexColors[ 1 ] ),
						getColorIndex( vertexColors[ 2 ] )
					);

				}

			}

			function setBit( value, position, enabled ) {

				return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );

			}

			function getNormalIndex( normal ) {

				var hash = normal.x.toString() + normal.y.toString() + normal.z.toString();

				if ( normalsHash[ hash ] !== undefined ) {

					return normalsHash[ hash ];

				}

				normalsHash[ hash ] = normals.length / 3;
				normals.push( normal.x, normal.y, normal.z );

				return normalsHash[ hash ];

			}

			function getColorIndex( color ) {

				var hash = color.r.toString() + color.g.toString() + color.b.toString();

				if ( colorsHash[ hash ] !== undefined ) {

					return colorsHash[ hash ];

				}

				colorsHash[ hash ] = colors.length;
				colors.push( color.getHex() );

				return colorsHash[ hash ];

			}

			function getUvIndex( uv ) {

				var hash = uv.x.toString() + uv.y.toString();

				if ( uvsHash[ hash ] !== undefined ) {

					return uvsHash[ hash ];

				}

				uvsHash[ hash ] = uvs.length / 2;
				uvs.push( uv.x, uv.y );

				return uvsHash[ hash ];

			}

			data.data = {};

			data.data.vertices = vertices;
			data.data.normals = normals;
			if ( colors.length > 0 ) data.data.colors = colors;
			if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility
			data.data.faces = faces;

			return data;

		},

		clone: function () {

			/*
			 // Handle primitives

			 var parameters = this.parameters;

			 if ( parameters !== undefined ) {

			 var values = [];

			 for ( var key in parameters ) {

			 values.push( parameters[ key ] );

			 }

			 var geometry = Object.create( this.constructor.prototype );
			 this.constructor.apply( geometry, values );
			 return geometry;

			 }

			 return new this.constructor().copy( this );
			 */

			return new Geometry().copy( this );

		},

		copy: function ( source ) {

			var i, il, j, jl, k, kl;

			// reset

			this.vertices = [];
			this.colors = [];
			this.faces = [];
			this.faceVertexUvs = [[]];
			this.morphTargets = [];
			this.morphNormals = [];
			this.skinWeights = [];
			this.skinIndices = [];
			this.lineDistances = [];
			this.boundingBox = null;
			this.boundingSphere = null;

			// name

			this.name = source.name;

			// vertices

			var vertices = source.vertices;

			for ( i = 0, il = vertices.length; i < il; i ++ ) {

				this.vertices.push( vertices[ i ].clone() );

			}

			// colors

			var colors = source.colors;

			for ( i = 0, il = colors.length; i < il; i ++ ) {

				this.colors.push( colors[ i ].clone() );

			}

			// faces

			var faces = source.faces;

			for ( i = 0, il = faces.length; i < il; i ++ ) {

				this.faces.push( faces[ i ].clone() );

			}

			// face vertex uvs

			for ( i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {

				var faceVertexUvs = source.faceVertexUvs[ i ];

				if ( this.faceVertexUvs[ i ] === undefined ) {

					this.faceVertexUvs[ i ] = [];

				}

				for ( j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {

					var uvs = faceVertexUvs[ j ], uvsCopy = [];

					for ( k = 0, kl = uvs.length; k < kl; k ++ ) {

						var uv = uvs[ k ];

						uvsCopy.push( uv.clone() );

					}

					this.faceVertexUvs[ i ].push( uvsCopy );

				}

			}

			// morph targets

			var morphTargets = source.morphTargets;

			for ( i = 0, il = morphTargets.length; i < il; i ++ ) {

				var morphTarget = {};
				morphTarget.name = morphTargets[ i ].name;

				// vertices

				if ( morphTargets[ i ].vertices !== undefined ) {

					morphTarget.vertices = [];

					for ( j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) {

						morphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() );

					}

				}

				// normals

				if ( morphTargets[ i ].normals !== undefined ) {

					morphTarget.normals = [];

					for ( j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) {

						morphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() );

					}

				}

				this.morphTargets.push( morphTarget );

			}

			// morph normals

			var morphNormals = source.morphNormals;

			for ( i = 0, il = morphNormals.length; i < il; i ++ ) {

				var morphNormal = {};

				// vertex normals

				if ( morphNormals[ i ].vertexNormals !== undefined ) {

					morphNormal.vertexNormals = [];

					for ( j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) {

						var srcVertexNormal = morphNormals[ i ].vertexNormals[ j ];
						var destVertexNormal = {};

						destVertexNormal.a = srcVertexNormal.a.clone();
						destVertexNormal.b = srcVertexNormal.b.clone();
						destVertexNormal.c = srcVertexNormal.c.clone();

						morphNormal.vertexNormals.push( destVertexNormal );

					}

				}

				// face normals

				if ( morphNormals[ i ].faceNormals !== undefined ) {

					morphNormal.faceNormals = [];

					for ( j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) {

						morphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() );

					}

				}

				this.morphNormals.push( morphNormal );

			}

			// skin weights

			var skinWeights = source.skinWeights;

			for ( i = 0, il = skinWeights.length; i < il; i ++ ) {

				this.skinWeights.push( skinWeights[ i ].clone() );

			}

			// skin indices

			var skinIndices = source.skinIndices;

			for ( i = 0, il = skinIndices.length; i < il; i ++ ) {

				this.skinIndices.push( skinIndices[ i ].clone() );

			}

			// line distances

			var lineDistances = source.lineDistances;

			for ( i = 0, il = lineDistances.length; i < il; i ++ ) {

				this.lineDistances.push( lineDistances[ i ] );

			}

			// bounding box

			var boundingBox = source.boundingBox;

			if ( boundingBox !== null ) {

				this.boundingBox = boundingBox.clone();

			}

			// bounding sphere

			var boundingSphere = source.boundingSphere;

			if ( boundingSphere !== null ) {

				this.boundingSphere = boundingSphere.clone();

			}

			// update flags

			this.elementsNeedUpdate = source.elementsNeedUpdate;
			this.verticesNeedUpdate = source.verticesNeedUpdate;
			this.uvsNeedUpdate = source.uvsNeedUpdate;
			this.normalsNeedUpdate = source.normalsNeedUpdate;
			this.colorsNeedUpdate = source.colorsNeedUpdate;
			this.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate;
			this.groupsNeedUpdate = source.groupsNeedUpdate;

			return this;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function BufferAttribute( array, itemSize, normalized ) {

		if ( Array.isArray( array ) ) {

			throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );

		}

		this.name = '';

		this.array = array;
		this.itemSize = itemSize;
		this.count = array !== undefined ? array.length / itemSize : 0;
		this.normalized = normalized === true;

		this.dynamic = false;
		this.updateRange = { offset: 0, count: - 1 };

		this.version = 0;

	}

	Object.defineProperty( BufferAttribute.prototype, 'needsUpdate', {

		set: function ( value ) {

			if ( value === true ) this.version ++;

		}

	} );

	Object.assign( BufferAttribute.prototype, {

		isBufferAttribute: true,

		onUploadCallback: function () {},

		setArray: function ( array ) {

			if ( Array.isArray( array ) ) {

				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );

			}

			this.count = array !== undefined ? array.length / this.itemSize : 0;
			this.array = array;

			return this;

		},

		setDynamic: function ( value ) {

			this.dynamic = value;

			return this;

		},

		copy: function ( source ) {

			this.name = source.name;
			this.array = new source.array.constructor( source.array );
			this.itemSize = source.itemSize;
			this.count = source.count;
			this.normalized = source.normalized;

			this.dynamic = source.dynamic;

			return this;

		},

		copyAt: function ( index1, attribute, index2 ) {

			index1 *= this.itemSize;
			index2 *= attribute.itemSize;

			for ( var i = 0, l = this.itemSize; i < l; i ++ ) {

				this.array[ index1 + i ] = attribute.array[ index2 + i ];

			}

			return this;

		},

		copyArray: function ( array ) {

			this.array.set( array );

			return this;

		},

		copyColorsArray: function ( colors ) {

			var array = this.array, offset = 0;

			for ( var i = 0, l = colors.length; i < l; i ++ ) {

				var color = colors[ i ];

				if ( color === undefined ) {

					console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );
					color = new Color();

				}

				array[ offset ++ ] = color.r;
				array[ offset ++ ] = color.g;
				array[ offset ++ ] = color.b;

			}

			return this;

		},

		copyVector2sArray: function ( vectors ) {

			var array = this.array, offset = 0;

			for ( var i = 0, l = vectors.length; i < l; i ++ ) {

				var vector = vectors[ i ];

				if ( vector === undefined ) {

					console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );
					vector = new Vector2();

				}

				array[ offset ++ ] = vector.x;
				array[ offset ++ ] = vector.y;

			}

			return this;

		},

		copyVector3sArray: function ( vectors ) {

			var array = this.array, offset = 0;

			for ( var i = 0, l = vectors.length; i < l; i ++ ) {

				var vector = vectors[ i ];

				if ( vector === undefined ) {

					console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );
					vector = new Vector3();

				}

				array[ offset ++ ] = vector.x;
				array[ offset ++ ] = vector.y;
				array[ offset ++ ] = vector.z;

			}

			return this;

		},

		copyVector4sArray: function ( vectors ) {

			var array = this.array, offset = 0;

			for ( var i = 0, l = vectors.length; i < l; i ++ ) {

				var vector = vectors[ i ];

				if ( vector === undefined ) {

					console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );
					vector = new Vector4();

				}

				array[ offset ++ ] = vector.x;
				array[ offset ++ ] = vector.y;
				array[ offset ++ ] = vector.z;
				array[ offset ++ ] = vector.w;

			}

			return this;

		},

		set: function ( value, offset ) {

			if ( offset === undefined ) offset = 0;

			this.array.set( value, offset );

			return this;

		},

		getX: function ( index ) {

			return this.array[ index * this.itemSize ];

		},

		setX: function ( index, x ) {

			this.array[ index * this.itemSize ] = x;

			return this;

		},

		getY: function ( index ) {

			return this.array[ index * this.itemSize + 1 ];

		},

		setY: function ( index, y ) {

			this.array[ index * this.itemSize + 1 ] = y;

			return this;

		},

		getZ: function ( index ) {

			return this.array[ index * this.itemSize + 2 ];

		},

		setZ: function ( index, z ) {

			this.array[ index * this.itemSize + 2 ] = z;

			return this;

		},

		getW: function ( index ) {

			return this.array[ index * this.itemSize + 3 ];

		},

		setW: function ( index, w ) {

			this.array[ index * this.itemSize + 3 ] = w;

			return this;

		},

		setXY: function ( index, x, y ) {

			index *= this.itemSize;

			this.array[ index + 0 ] = x;
			this.array[ index + 1 ] = y;

			return this;

		},

		setXYZ: function ( index, x, y, z ) {

			index *= this.itemSize;

			this.array[ index + 0 ] = x;
			this.array[ index + 1 ] = y;
			this.array[ index + 2 ] = z;

			return this;

		},

		setXYZW: function ( index, x, y, z, w ) {

			index *= this.itemSize;

			this.array[ index + 0 ] = x;
			this.array[ index + 1 ] = y;
			this.array[ index + 2 ] = z;
			this.array[ index + 3 ] = w;

			return this;

		},

		onUpload: function ( callback ) {

			this.onUploadCallback = callback;

			return this;

		},

		clone: function () {

			return new this.constructor( this.array, this.itemSize ).copy( this );

		}

	} );

	//

	function Int8BufferAttribute( array, itemSize, normalized ) {

		BufferAttribute.call( this, new Int8Array( array ), itemSize, normalized );

	}

	Int8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Int8BufferAttribute.prototype.constructor = Int8BufferAttribute;


	function Uint8BufferAttribute( array, itemSize, normalized ) {

		BufferAttribute.call( this, new Uint8Array( array ), itemSize, normalized );

	}

	Uint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;


	function Uint8ClampedBufferAttribute( array, itemSize, normalized ) {

		BufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize, normalized );

	}

	Uint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;


	function Int16BufferAttribute( array, itemSize, normalized ) {

		BufferAttribute.call( this, new Int16Array( array ), itemSize, normalized );

	}

	Int16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Int16BufferAttribute.prototype.constructor = Int16BufferAttribute;


	function Uint16BufferAttribute( array, itemSize, normalized ) {

		BufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized );

	}

	Uint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;


	function Int32BufferAttribute( array, itemSize, normalized ) {

		BufferAttribute.call( this, new Int32Array( array ), itemSize, normalized );

	}

	Int32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Int32BufferAttribute.prototype.constructor = Int32BufferAttribute;


	function Uint32BufferAttribute( array, itemSize, normalized ) {

		BufferAttribute.call( this, new Uint32Array( array ), itemSize, normalized );

	}

	Uint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;


	function Float32BufferAttribute( array, itemSize, normalized ) {

		BufferAttribute.call( this, new Float32Array( array ), itemSize, normalized );

	}

	Float32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Float32BufferAttribute.prototype.constructor = Float32BufferAttribute;


	function Float64BufferAttribute( array, itemSize, normalized ) {

		BufferAttribute.call( this, new Float64Array( array ), itemSize, normalized );

	}

	Float64BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Float64BufferAttribute.prototype.constructor = Float64BufferAttribute;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function DirectGeometry() {

		this.vertices = [];
		this.normals = [];
		this.colors = [];
		this.uvs = [];
		this.uvs2 = [];

		this.groups = [];

		this.morphTargets = {};

		this.skinWeights = [];
		this.skinIndices = [];

		// this.lineDistances = [];

		this.boundingBox = null;
		this.boundingSphere = null;

		// update flags

		this.verticesNeedUpdate = false;
		this.normalsNeedUpdate = false;
		this.colorsNeedUpdate = false;
		this.uvsNeedUpdate = false;
		this.groupsNeedUpdate = false;

	}

	Object.assign( DirectGeometry.prototype, {

		computeGroups: function ( geometry ) {

			var group;
			var groups = [];
			var materialIndex = undefined;

			var faces = geometry.faces;

			for ( var i = 0; i < faces.length; i ++ ) {

				var face = faces[ i ];

				// materials

				if ( face.materialIndex !== materialIndex ) {

					materialIndex = face.materialIndex;

					if ( group !== undefined ) {

						group.count = ( i * 3 ) - group.start;
						groups.push( group );

					}

					group = {
						start: i * 3,
						materialIndex: materialIndex
					};

				}

			}

			if ( group !== undefined ) {

				group.count = ( i * 3 ) - group.start;
				groups.push( group );

			}

			this.groups = groups;

		},

		fromGeometry: function ( geometry ) {

			var faces = geometry.faces;
			var vertices = geometry.vertices;
			var faceVertexUvs = geometry.faceVertexUvs;

			var hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;
			var hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;

			// morphs

			var morphTargets = geometry.morphTargets;
			var morphTargetsLength = morphTargets.length;

			var morphTargetsPosition;

			if ( morphTargetsLength > 0 ) {

				morphTargetsPosition = [];

				for ( var i = 0; i < morphTargetsLength; i ++ ) {

					morphTargetsPosition[ i ] = [];

				}

				this.morphTargets.position = morphTargetsPosition;

			}

			var morphNormals = geometry.morphNormals;
			var morphNormalsLength = morphNormals.length;

			var morphTargetsNormal;

			if ( morphNormalsLength > 0 ) {

				morphTargetsNormal = [];

				for ( var i = 0; i < morphNormalsLength; i ++ ) {

					morphTargetsNormal[ i ] = [];

				}

				this.morphTargets.normal = morphTargetsNormal;

			}

			// skins

			var skinIndices = geometry.skinIndices;
			var skinWeights = geometry.skinWeights;

			var hasSkinIndices = skinIndices.length === vertices.length;
			var hasSkinWeights = skinWeights.length === vertices.length;

			//

			if ( vertices.length > 0 && faces.length === 0 ) {

				console.error( 'THREE.DirectGeometry: Faceless geometries are not supported.' );

			}

			for ( var i = 0; i < faces.length; i ++ ) {

				var face = faces[ i ];

				this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );

				var vertexNormals = face.vertexNormals;

				if ( vertexNormals.length === 3 ) {

					this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );

				} else {

					var normal = face.normal;

					this.normals.push( normal, normal, normal );

				}

				var vertexColors = face.vertexColors;

				if ( vertexColors.length === 3 ) {

					this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );

				} else {

					var color = face.color;

					this.colors.push( color, color, color );

				}

				if ( hasFaceVertexUv === true ) {

					var vertexUvs = faceVertexUvs[ 0 ][ i ];

					if ( vertexUvs !== undefined ) {

						this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );

					} else {

						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );

						this.uvs.push( new Vector2(), new Vector2(), new Vector2() );

					}

				}

				if ( hasFaceVertexUv2 === true ) {

					var vertexUvs = faceVertexUvs[ 1 ][ i ];

					if ( vertexUvs !== undefined ) {

						this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );

					} else {

						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );

						this.uvs2.push( new Vector2(), new Vector2(), new Vector2() );

					}

				}

				// morphs

				for ( var j = 0; j < morphTargetsLength; j ++ ) {

					var morphTarget = morphTargets[ j ].vertices;

					morphTargetsPosition[ j ].push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );

				}

				for ( var j = 0; j < morphNormalsLength; j ++ ) {

					var morphNormal = morphNormals[ j ].vertexNormals[ i ];

					morphTargetsNormal[ j ].push( morphNormal.a, morphNormal.b, morphNormal.c );

				}

				// skins

				if ( hasSkinIndices ) {

					this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );

				}

				if ( hasSkinWeights ) {

					this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );

				}

			}

			this.computeGroups( geometry );

			this.verticesNeedUpdate = geometry.verticesNeedUpdate;
			this.normalsNeedUpdate = geometry.normalsNeedUpdate;
			this.colorsNeedUpdate = geometry.colorsNeedUpdate;
			this.uvsNeedUpdate = geometry.uvsNeedUpdate;
			this.groupsNeedUpdate = geometry.groupsNeedUpdate;

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function arrayMax( array ) {

		if ( array.length === 0 ) return - Infinity;

		var max = array[ 0 ];

		for ( var i = 1, l = array.length; i < l; ++ i ) {

			if ( array[ i ] > max ) max = array[ i ];

		}

		return max;

	}

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	var bufferGeometryId = 1; // BufferGeometry uses odd numbers as Id

	function BufferGeometry() {

		Object.defineProperty( this, 'id', { value: bufferGeometryId += 2 } );

		this.uuid = _Math.generateUUID();

		this.name = '';
		this.type = 'BufferGeometry';

		this.index = null;
		this.attributes = {};

		this.morphAttributes = {};

		this.groups = [];

		this.boundingBox = null;
		this.boundingSphere = null;

		this.drawRange = { start: 0, count: Infinity };

		this.userData = {};

	}

	BufferGeometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {

		constructor: BufferGeometry,

		isBufferGeometry: true,

		getIndex: function () {

			return this.index;

		},

		setIndex: function ( index ) {

			if ( Array.isArray( index ) ) {

				this.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );

			} else {

				this.index = index;

			}

		},

		addAttribute: function ( name, attribute ) {

			if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {

				console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );

				return this.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );

			}

			if ( name === 'index' ) {

				console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );
				this.setIndex( attribute );

				return this;

			}

			this.attributes[ name ] = attribute;

			return this;

		},

		getAttribute: function ( name ) {

			return this.attributes[ name ];

		},

		removeAttribute: function ( name ) {

			delete this.attributes[ name ];

			return this;

		},

		addGroup: function ( start, count, materialIndex ) {

			this.groups.push( {

				start: start,
				count: count,
				materialIndex: materialIndex !== undefined ? materialIndex : 0

			} );

		},

		clearGroups: function () {

			this.groups = [];

		},

		setDrawRange: function ( start, count ) {

			this.drawRange.start = start;
			this.drawRange.count = count;

		},

		applyMatrix: function ( matrix ) {

			var position = this.attributes.position;

			if ( position !== undefined ) {

				matrix.applyToBufferAttribute( position );
				position.needsUpdate = true;

			}

			var normal = this.attributes.normal;

			if ( normal !== undefined ) {

				var normalMatrix = new Matrix3().getNormalMatrix( matrix );

				normalMatrix.applyToBufferAttribute( normal );
				normal.needsUpdate = true;

			}

			if ( this.boundingBox !== null ) {

				this.computeBoundingBox();

			}

			if ( this.boundingSphere !== null ) {

				this.computeBoundingSphere();

			}

			return this;

		},

		rotateX: function () {

			// rotate geometry around world x-axis

			var m1 = new Matrix4();

			return function rotateX( angle ) {

				m1.makeRotationX( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		rotateY: function () {

			// rotate geometry around world y-axis

			var m1 = new Matrix4();

			return function rotateY( angle ) {

				m1.makeRotationY( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		rotateZ: function () {

			// rotate geometry around world z-axis

			var m1 = new Matrix4();

			return function rotateZ( angle ) {

				m1.makeRotationZ( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		translate: function () {

			// translate geometry

			var m1 = new Matrix4();

			return function translate( x, y, z ) {

				m1.makeTranslation( x, y, z );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		scale: function () {

			// scale geometry

			var m1 = new Matrix4();

			return function scale( x, y, z ) {

				m1.makeScale( x, y, z );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		lookAt: function () {

			var obj = new Object3D();

			return function lookAt( vector ) {

				obj.lookAt( vector );

				obj.updateMatrix();

				this.applyMatrix( obj.matrix );

			};

		}(),

		center: function () {

			var offset = new Vector3();

			return function center() {

				this.computeBoundingBox();

				this.boundingBox.getCenter( offset ).negate();

				this.translate( offset.x, offset.y, offset.z );

				return this;

			};

		}(),

		setFromObject: function ( object ) {

			// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );

			var geometry = object.geometry;

			if ( object.isPoints || object.isLine ) {

				var positions = new Float32BufferAttribute( geometry.vertices.length * 3, 3 );
				var colors = new Float32BufferAttribute( geometry.colors.length * 3, 3 );

				this.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );
				this.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );

				if ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {

					var lineDistances = new Float32BufferAttribute( geometry.lineDistances.length, 1 );

					this.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );

				}

				if ( geometry.boundingSphere !== null ) {

					this.boundingSphere = geometry.boundingSphere.clone();

				}

				if ( geometry.boundingBox !== null ) {

					this.boundingBox = geometry.boundingBox.clone();

				}

			} else if ( object.isMesh ) {

				if ( geometry && geometry.isGeometry ) {

					this.fromGeometry( geometry );

				}

			}

			return this;

		},

		setFromPoints: function ( points ) {

			var position = [];

			for ( var i = 0, l = points.length; i < l; i ++ ) {

				var point = points[ i ];
				position.push( point.x, point.y, point.z || 0 );

			}

			this.addAttribute( 'position', new Float32BufferAttribute( position, 3 ) );

			return this;

		},

		updateFromObject: function ( object ) {

			var geometry = object.geometry;

			if ( object.isMesh ) {

				var direct = geometry.__directGeometry;

				if ( geometry.elementsNeedUpdate === true ) {

					direct = undefined;
					geometry.elementsNeedUpdate = false;

				}

				if ( direct === undefined ) {

					return this.fromGeometry( geometry );

				}

				direct.verticesNeedUpdate = geometry.verticesNeedUpdate;
				direct.normalsNeedUpdate = geometry.normalsNeedUpdate;
				direct.colorsNeedUpdate = geometry.colorsNeedUpdate;
				direct.uvsNeedUpdate = geometry.uvsNeedUpdate;
				direct.groupsNeedUpdate = geometry.groupsNeedUpdate;

				geometry.verticesNeedUpdate = false;
				geometry.normalsNeedUpdate = false;
				geometry.colorsNeedUpdate = false;
				geometry.uvsNeedUpdate = false;
				geometry.groupsNeedUpdate = false;

				geometry = direct;

			}

			var attribute;

			if ( geometry.verticesNeedUpdate === true ) {

				attribute = this.attributes.position;

				if ( attribute !== undefined ) {

					attribute.copyVector3sArray( geometry.vertices );
					attribute.needsUpdate = true;

				}

				geometry.verticesNeedUpdate = false;

			}

			if ( geometry.normalsNeedUpdate === true ) {

				attribute = this.attributes.normal;

				if ( attribute !== undefined ) {

					attribute.copyVector3sArray( geometry.normals );
					attribute.needsUpdate = true;

				}

				geometry.normalsNeedUpdate = false;

			}

			if ( geometry.colorsNeedUpdate === true ) {

				attribute = this.attributes.color;

				if ( attribute !== undefined ) {

					attribute.copyColorsArray( geometry.colors );
					attribute.needsUpdate = true;

				}

				geometry.colorsNeedUpdate = false;

			}

			if ( geometry.uvsNeedUpdate ) {

				attribute = this.attributes.uv;

				if ( attribute !== undefined ) {

					attribute.copyVector2sArray( geometry.uvs );
					attribute.needsUpdate = true;

				}

				geometry.uvsNeedUpdate = false;

			}

			if ( geometry.lineDistancesNeedUpdate ) {

				attribute = this.attributes.lineDistance;

				if ( attribute !== undefined ) {

					attribute.copyArray( geometry.lineDistances );
					attribute.needsUpdate = true;

				}

				geometry.lineDistancesNeedUpdate = false;

			}

			if ( geometry.groupsNeedUpdate ) {

				geometry.computeGroups( object.geometry );
				this.groups = geometry.groups;

				geometry.groupsNeedUpdate = false;

			}

			return this;

		},

		fromGeometry: function ( geometry ) {

			geometry.__directGeometry = new DirectGeometry().fromGeometry( geometry );

			return this.fromDirectGeometry( geometry.__directGeometry );

		},

		fromDirectGeometry: function ( geometry ) {

			var positions = new Float32Array( geometry.vertices.length * 3 );
			this.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );

			if ( geometry.normals.length > 0 ) {

				var normals = new Float32Array( geometry.normals.length * 3 );
				this.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );

			}

			if ( geometry.colors.length > 0 ) {

				var colors = new Float32Array( geometry.colors.length * 3 );
				this.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );

			}

			if ( geometry.uvs.length > 0 ) {

				var uvs = new Float32Array( geometry.uvs.length * 2 );
				this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );

			}

			if ( geometry.uvs2.length > 0 ) {

				var uvs2 = new Float32Array( geometry.uvs2.length * 2 );
				this.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );

			}

			// groups

			this.groups = geometry.groups;

			// morphs

			for ( var name in geometry.morphTargets ) {

				var array = [];
				var morphTargets = geometry.morphTargets[ name ];

				for ( var i = 0, l = morphTargets.length; i < l; i ++ ) {

					var morphTarget = morphTargets[ i ];

					var attribute = new Float32BufferAttribute( morphTarget.length * 3, 3 );

					array.push( attribute.copyVector3sArray( morphTarget ) );

				}

				this.morphAttributes[ name ] = array;

			}

			// skinning

			if ( geometry.skinIndices.length > 0 ) {

				var skinIndices = new Float32BufferAttribute( geometry.skinIndices.length * 4, 4 );
				this.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );

			}

			if ( geometry.skinWeights.length > 0 ) {

				var skinWeights = new Float32BufferAttribute( geometry.skinWeights.length * 4, 4 );
				this.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );

			}

			//

			if ( geometry.boundingSphere !== null ) {

				this.boundingSphere = geometry.boundingSphere.clone();

			}

			if ( geometry.boundingBox !== null ) {

				this.boundingBox = geometry.boundingBox.clone();

			}

			return this;

		},

		computeBoundingBox: function () {

			if ( this.boundingBox === null ) {

				this.boundingBox = new Box3();

			}

			var position = this.attributes.position;

			if ( position !== undefined ) {

				this.boundingBox.setFromBufferAttribute( position );

			} else {

				this.boundingBox.makeEmpty();

			}

			if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {

				console.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this );

			}

		},

		computeBoundingSphere: function () {

			var box = new Box3();
			var vector = new Vector3();

			return function computeBoundingSphere() {

				if ( this.boundingSphere === null ) {

					this.boundingSphere = new Sphere();

				}

				var position = this.attributes.position;

				if ( position ) {

					var center = this.boundingSphere.center;

					box.setFromBufferAttribute( position );
					box.getCenter( center );

					// hoping to find a boundingSphere with a radius smaller than the
					// boundingSphere of the boundingBox: sqrt(3) smaller in the best case

					var maxRadiusSq = 0;

					for ( var i = 0, il = position.count; i < il; i ++ ) {

						vector.x = position.getX( i );
						vector.y = position.getY( i );
						vector.z = position.getZ( i );
						maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );

					}

					this.boundingSphere.radius = Math.sqrt( maxRadiusSq );

					if ( isNaN( this.boundingSphere.radius ) ) {

						console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this );

					}

				}

			};

		}(),

		computeFaceNormals: function () {

			// backwards compatibility

		},

		computeVertexNormals: function () {

			var index = this.index;
			var attributes = this.attributes;
			var groups = this.groups;

			if ( attributes.position ) {

				var positions = attributes.position.array;

				if ( attributes.normal === undefined ) {

					this.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) );

				} else {

					// reset existing normals to zero

					var array = attributes.normal.array;

					for ( var i = 0, il = array.length; i < il; i ++ ) {

						array[ i ] = 0;

					}

				}

				var normals = attributes.normal.array;

				var vA, vB, vC;
				var pA = new Vector3(), pB = new Vector3(), pC = new Vector3();
				var cb = new Vector3(), ab = new Vector3();

				// indexed elements

				if ( index ) {

					var indices = index.array;

					if ( groups.length === 0 ) {

						this.addGroup( 0, indices.length );

					}

					for ( var j = 0, jl = groups.length; j < jl; ++ j ) {

						var group = groups[ j ];

						var start = group.start;
						var count = group.count;

						for ( var i = start, il = start + count; i < il; i += 3 ) {

							vA = indices[ i + 0 ] * 3;
							vB = indices[ i + 1 ] * 3;
							vC = indices[ i + 2 ] * 3;

							pA.fromArray( positions, vA );
							pB.fromArray( positions, vB );
							pC.fromArray( positions, vC );

							cb.subVectors( pC, pB );
							ab.subVectors( pA, pB );
							cb.cross( ab );

							normals[ vA ] += cb.x;
							normals[ vA + 1 ] += cb.y;
							normals[ vA + 2 ] += cb.z;

							normals[ vB ] += cb.x;
							normals[ vB + 1 ] += cb.y;
							normals[ vB + 2 ] += cb.z;

							normals[ vC ] += cb.x;
							normals[ vC + 1 ] += cb.y;
							normals[ vC + 2 ] += cb.z;

						}

					}

				} else {

					// non-indexed elements (unconnected triangle soup)

					for ( var i = 0, il = positions.length; i < il; i += 9 ) {

						pA.fromArray( positions, i );
						pB.fromArray( positions, i + 3 );
						pC.fromArray( positions, i + 6 );

						cb.subVectors( pC, pB );
						ab.subVectors( pA, pB );
						cb.cross( ab );

						normals[ i ] = cb.x;
						normals[ i + 1 ] = cb.y;
						normals[ i + 2 ] = cb.z;

						normals[ i + 3 ] = cb.x;
						normals[ i + 4 ] = cb.y;
						normals[ i + 5 ] = cb.z;

						normals[ i + 6 ] = cb.x;
						normals[ i + 7 ] = cb.y;
						normals[ i + 8 ] = cb.z;

					}

				}

				this.normalizeNormals();

				attributes.normal.needsUpdate = true;

			}

		},

		merge: function ( geometry, offset ) {

			if ( ! ( geometry && geometry.isBufferGeometry ) ) {

				console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );
				return;

			}

			if ( offset === undefined ) {

				offset = 0;

				console.warn(
					'THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. '
					+ 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.'
				);

			}

			var attributes = this.attributes;

			for ( var key in attributes ) {

				if ( geometry.attributes[ key ] === undefined ) continue;

				var attribute1 = attributes[ key ];
				var attributeArray1 = attribute1.array;

				var attribute2 = geometry.attributes[ key ];
				var attributeArray2 = attribute2.array;

				var attributeSize = attribute2.itemSize;

				for ( var i = 0, j = attributeSize * offset; i < attributeArray2.length; i ++, j ++ ) {

					attributeArray1[ j ] = attributeArray2[ i ];

				}

			}

			return this;

		},

		normalizeNormals: function () {

			var vector = new Vector3();

			return function normalizeNormals() {

				var normals = this.attributes.normal;

				for ( var i = 0, il = normals.count; i < il; i ++ ) {

					vector.x = normals.getX( i );
					vector.y = normals.getY( i );
					vector.z = normals.getZ( i );

					vector.normalize();

					normals.setXYZ( i, vector.x, vector.y, vector.z );

				}

			};

		}(),

		toNonIndexed: function () {

			if ( this.index === null ) {

				console.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' );
				return this;

			}

			var geometry2 = new BufferGeometry();

			var indices = this.index.array;
			var attributes = this.attributes;

			for ( var name in attributes ) {

				var attribute = attributes[ name ];

				var array = attribute.array;
				var itemSize = attribute.itemSize;

				var array2 = new array.constructor( indices.length * itemSize );

				var index = 0, index2 = 0;

				for ( var i = 0, l = indices.length; i < l; i ++ ) {

					index = indices[ i ] * itemSize;

					for ( var j = 0; j < itemSize; j ++ ) {

						array2[ index2 ++ ] = array[ index ++ ];

					}

				}

				geometry2.addAttribute( name, new BufferAttribute( array2, itemSize ) );

			}

			var groups = this.groups;

			for ( var i = 0, l = groups.length; i < l; i ++ ) {

				var group = groups[ i ];
				geometry2.addGroup( group.start, group.count, group.materialIndex );

			}

			return geometry2;

		},

		toJSON: function () {

			var data = {
				metadata: {
					version: 4.5,
					type: 'BufferGeometry',
					generator: 'BufferGeometry.toJSON'
				}
			};

			// standard BufferGeometry serialization

			data.uuid = this.uuid;
			data.type = this.type;
			if ( this.name !== '' ) data.name = this.name;
			if ( Object.keys( this.userData ).length > 0 ) data.userData = this.userData;

			if ( this.parameters !== undefined ) {

				var parameters = this.parameters;

				for ( var key in parameters ) {

					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];

				}

				return data;

			}

			data.data = { attributes: {} };

			var index = this.index;

			if ( index !== null ) {

				var array = Array.prototype.slice.call( index.array );

				data.data.index = {
					type: index.array.constructor.name,
					array: array
				};

			}

			var attributes = this.attributes;

			for ( var key in attributes ) {

				var attribute = attributes[ key ];

				var array = Array.prototype.slice.call( attribute.array );

				data.data.attributes[ key ] = {
					itemSize: attribute.itemSize,
					type: attribute.array.constructor.name,
					array: array,
					normalized: attribute.normalized
				};

			}

			var groups = this.groups;

			if ( groups.length > 0 ) {

				data.data.groups = JSON.parse( JSON.stringify( groups ) );

			}

			var boundingSphere = this.boundingSphere;

			if ( boundingSphere !== null ) {

				data.data.boundingSphere = {
					center: boundingSphere.center.toArray(),
					radius: boundingSphere.radius
				};

			}

			return data;

		},

		clone: function () {

			/*
			 // Handle primitives

			 var parameters = this.parameters;

			 if ( parameters !== undefined ) {

			 var values = [];

			 for ( var key in parameters ) {

			 values.push( parameters[ key ] );

			 }

			 var geometry = Object.create( this.constructor.prototype );
			 this.constructor.apply( geometry, values );
			 return geometry;

			 }

			 return new this.constructor().copy( this );
			 */

			return new BufferGeometry().copy( this );

		},

		copy: function ( source ) {

			var name, i, l;

			// reset

			this.index = null;
			this.attributes = {};
			this.morphAttributes = {};
			this.groups = [];
			this.boundingBox = null;
			this.boundingSphere = null;

			// name

			this.name = source.name;

			// index

			var index = source.index;

			if ( index !== null ) {

				this.setIndex( index.clone() );

			}

			// attributes

			var attributes = source.attributes;

			for ( name in attributes ) {

				var attribute = attributes[ name ];
				this.addAttribute( name, attribute.clone() );

			}

			// morph attributes

			var morphAttributes = source.morphAttributes;

			for ( name in morphAttributes ) {

				var array = [];
				var morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes

				for ( i = 0, l = morphAttribute.length; i < l; i ++ ) {

					array.push( morphAttribute[ i ].clone() );

				}

				this.morphAttributes[ name ] = array;

			}

			// groups

			var groups = source.groups;

			for ( i = 0, l = groups.length; i < l; i ++ ) {

				var group = groups[ i ];
				this.addGroup( group.start, group.count, group.materialIndex );

			}

			// bounding box

			var boundingBox = source.boundingBox;

			if ( boundingBox !== null ) {

				this.boundingBox = boundingBox.clone();

			}

			// bounding sphere

			var boundingSphere = source.boundingSphere;

			if ( boundingSphere !== null ) {

				this.boundingSphere = boundingSphere.clone();

			}

			// draw range

			this.drawRange.start = source.drawRange.start;
			this.drawRange.count = source.drawRange.count;

			// user data

			this.userData = source.userData;

			return this;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// BoxGeometry

	function BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {

		Geometry.call( this );

		this.type = 'BoxGeometry';

		this.parameters = {
			width: width,
			height: height,
			depth: depth,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			depthSegments: depthSegments
		};

		this.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) );
		this.mergeVertices();

	}

	BoxGeometry.prototype = Object.create( Geometry.prototype );
	BoxGeometry.prototype.constructor = BoxGeometry;

	// BoxBufferGeometry

	function BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {

		BufferGeometry.call( this );

		this.type = 'BoxBufferGeometry';

		this.parameters = {
			width: width,
			height: height,
			depth: depth,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			depthSegments: depthSegments
		};

		var scope = this;

		width = width || 1;
		height = height || 1;
		depth = depth || 1;

		// segments

		widthSegments = Math.floor( widthSegments ) || 1;
		heightSegments = Math.floor( heightSegments ) || 1;
		depthSegments = Math.floor( depthSegments ) || 1;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var numberOfVertices = 0;
		var groupStart = 0;

		// build each side of the box geometry

		buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px
		buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx
		buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py
		buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny
		buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz
		buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {

			var segmentWidth = width / gridX;
			var segmentHeight = height / gridY;

			var widthHalf = width / 2;
			var heightHalf = height / 2;
			var depthHalf = depth / 2;

			var gridX1 = gridX + 1;
			var gridY1 = gridY + 1;

			var vertexCounter = 0;
			var groupCount = 0;

			var ix, iy;

			var vector = new Vector3();

			// generate vertices, normals and uvs

			for ( iy = 0; iy < gridY1; iy ++ ) {

				var y = iy * segmentHeight - heightHalf;

				for ( ix = 0; ix < gridX1; ix ++ ) {

					var x = ix * segmentWidth - widthHalf;

					// set values to correct vector component

					vector[ u ] = x * udir;
					vector[ v ] = y * vdir;
					vector[ w ] = depthHalf;

					// now apply vector to vertex buffer

					vertices.push( vector.x, vector.y, vector.z );

					// set values to correct vector component

					vector[ u ] = 0;
					vector[ v ] = 0;
					vector[ w ] = depth > 0 ? 1 : - 1;

					// now apply vector to normal buffer

					normals.push( vector.x, vector.y, vector.z );

					// uvs

					uvs.push( ix / gridX );
					uvs.push( 1 - ( iy / gridY ) );

					// counters

					vertexCounter += 1;

				}

			}

			// indices

			// 1. you need three indices to draw a single face
			// 2. a single segment consists of two faces
			// 3. so we need to generate six (2*3) indices per segment

			for ( iy = 0; iy < gridY; iy ++ ) {

				for ( ix = 0; ix < gridX; ix ++ ) {

					var a = numberOfVertices + ix + gridX1 * iy;
					var b = numberOfVertices + ix + gridX1 * ( iy + 1 );
					var c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );
					var d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;

					// faces

					indices.push( a, b, d );
					indices.push( b, c, d );

					// increase counter

					groupCount += 6;

				}

			}

			// add a group to the geometry. this will ensure multi material support

			scope.addGroup( groupStart, groupCount, materialIndex );

			// calculate new start value for groups

			groupStart += groupCount;

			// update total number of vertices

			numberOfVertices += vertexCounter;

		}

	}

	BoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	BoxBufferGeometry.prototype.constructor = BoxBufferGeometry;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// PlaneGeometry

	function PlaneGeometry( width, height, widthSegments, heightSegments ) {

		Geometry.call( this );

		this.type = 'PlaneGeometry';

		this.parameters = {
			width: width,
			height: height,
			widthSegments: widthSegments,
			heightSegments: heightSegments
		};

		this.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );
		this.mergeVertices();

	}

	PlaneGeometry.prototype = Object.create( Geometry.prototype );
	PlaneGeometry.prototype.constructor = PlaneGeometry;

	// PlaneBufferGeometry

	function PlaneBufferGeometry( width, height, widthSegments, heightSegments ) {

		BufferGeometry.call( this );

		this.type = 'PlaneBufferGeometry';

		this.parameters = {
			width: width,
			height: height,
			widthSegments: widthSegments,
			heightSegments: heightSegments
		};

		width = width || 1;
		height = height || 1;

		var width_half = width / 2;
		var height_half = height / 2;

		var gridX = Math.floor( widthSegments ) || 1;
		var gridY = Math.floor( heightSegments ) || 1;

		var gridX1 = gridX + 1;
		var gridY1 = gridY + 1;

		var segment_width = width / gridX;
		var segment_height = height / gridY;

		var ix, iy;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// generate vertices, normals and uvs

		for ( iy = 0; iy < gridY1; iy ++ ) {

			var y = iy * segment_height - height_half;

			for ( ix = 0; ix < gridX1; ix ++ ) {

				var x = ix * segment_width - width_half;

				vertices.push( x, - y, 0 );

				normals.push( 0, 0, 1 );

				uvs.push( ix / gridX );
				uvs.push( 1 - ( iy / gridY ) );

			}

		}

		// indices

		for ( iy = 0; iy < gridY; iy ++ ) {

			for ( ix = 0; ix < gridX; ix ++ ) {

				var a = ix + gridX1 * iy;
				var b = ix + gridX1 * ( iy + 1 );
				var c = ( ix + 1 ) + gridX1 * ( iy + 1 );
				var d = ( ix + 1 ) + gridX1 * iy;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	PlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	PlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	var materialId = 0;

	function Material() {

		Object.defineProperty( this, 'id', { value: materialId ++ } );

		this.uuid = _Math.generateUUID();

		this.name = '';
		this.type = 'Material';

		this.fog = true;
		this.lights = true;

		this.blending = NormalBlending;
		this.side = FrontSide;
		this.flatShading = false;
		this.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors

		this.opacity = 1;
		this.transparent = false;

		this.blendSrc = SrcAlphaFactor;
		this.blendDst = OneMinusSrcAlphaFactor;
		this.blendEquation = AddEquation;
		this.blendSrcAlpha = null;
		this.blendDstAlpha = null;
		this.blendEquationAlpha = null;

		this.depthFunc = LessEqualDepth;
		this.depthTest = true;
		this.depthWrite = true;

		this.clippingPlanes = null;
		this.clipIntersection = false;
		this.clipShadows = false;

		this.shadowSide = null;

		this.colorWrite = true;

		this.precision = null; // override the renderer's default precision for this material

		this.polygonOffset = false;
		this.polygonOffsetFactor = 0;
		this.polygonOffsetUnits = 0;

		this.dithering = false;

		this.alphaTest = 0;
		this.premultipliedAlpha = false;

		this.overdraw = 0; // Overdrawn pixels (typically between 0 and 1) for fixing antialiasing gaps in CanvasRenderer

		this.visible = true;

		this.userData = {};

		this.needsUpdate = true;

	}

	Material.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {

		constructor: Material,

		isMaterial: true,

		onBeforeCompile: function () {},

		setValues: function ( values ) {

			if ( values === undefined ) return;

			for ( var key in values ) {

				var newValue = values[ key ];

				if ( newValue === undefined ) {

					console.warn( "THREE.Material: '" + key + "' parameter is undefined." );
					continue;

				}

				// for backward compatability if shading is set in the constructor
				if ( key === 'shading' ) {

					console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
					this.flatShading = ( newValue === FlatShading ) ? true : false;
					continue;

				}

				var currentValue = this[ key ];

				if ( currentValue === undefined ) {

					console.warn( "THREE." + this.type + ": '" + key + "' is not a property of this material." );
					continue;

				}

				if ( currentValue && currentValue.isColor ) {

					currentValue.set( newValue );

				} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {

					currentValue.copy( newValue );

				} else if ( key === 'overdraw' ) {

					// ensure overdraw is backwards-compatible with legacy boolean type
					this[ key ] = Number( newValue );

				} else {

					this[ key ] = newValue;

				}

			}

		},

		toJSON: function ( meta ) {

			var isRoot = ( meta === undefined || typeof meta === 'string' );

			if ( isRoot ) {

				meta = {
					textures: {},
					images: {}
				};

			}

			var data = {
				metadata: {
					version: 4.5,
					type: 'Material',
					generator: 'Material.toJSON'
				}
			};

			// standard Material serialization
			data.uuid = this.uuid;
			data.type = this.type;

			if ( this.name !== '' ) data.name = this.name;

			if ( this.color && this.color.isColor ) data.color = this.color.getHex();

			if ( this.roughness !== undefined ) data.roughness = this.roughness;
			if ( this.metalness !== undefined ) data.metalness = this.metalness;

			if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();
			if ( this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;

			if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();
			if ( this.shininess !== undefined ) data.shininess = this.shininess;
			if ( this.clearCoat !== undefined ) data.clearCoat = this.clearCoat;
			if ( this.clearCoatRoughness !== undefined ) data.clearCoatRoughness = this.clearCoatRoughness;

			if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;
			if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;
			if ( this.lightMap && this.lightMap.isTexture ) data.lightMap = this.lightMap.toJSON( meta ).uuid;

			if ( this.aoMap && this.aoMap.isTexture ) {

				data.aoMap = this.aoMap.toJSON( meta ).uuid;
				data.aoMapIntensity = this.aoMapIntensity;

			}

			if ( this.bumpMap && this.bumpMap.isTexture ) {

				data.bumpMap = this.bumpMap.toJSON( meta ).uuid;
				data.bumpScale = this.bumpScale;

			}

			if ( this.normalMap && this.normalMap.isTexture ) {

				data.normalMap = this.normalMap.toJSON( meta ).uuid;
				data.normalMapType = this.normalMapType;
				data.normalScale = this.normalScale.toArray();

			}

			if ( this.displacementMap && this.displacementMap.isTexture ) {

				data.displacementMap = this.displacementMap.toJSON( meta ).uuid;
				data.displacementScale = this.displacementScale;
				data.displacementBias = this.displacementBias;

			}

			if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;
			if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;

			if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;
			if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;

			if ( this.envMap && this.envMap.isTexture ) {

				data.envMap = this.envMap.toJSON( meta ).uuid;
				data.reflectivity = this.reflectivity; // Scale behind envMap

			}

			if ( this.gradientMap && this.gradientMap.isTexture ) {

				data.gradientMap = this.gradientMap.toJSON( meta ).uuid;

			}

			if ( this.size !== undefined ) data.size = this.size;
			if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;

			if ( this.blending !== NormalBlending ) data.blending = this.blending;
			if ( this.flatShading === true ) data.flatShading = this.flatShading;
			if ( this.side !== FrontSide ) data.side = this.side;
			if ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors;

			if ( this.opacity < 1 ) data.opacity = this.opacity;
			if ( this.transparent === true ) data.transparent = this.transparent;

			data.depthFunc = this.depthFunc;
			data.depthTest = this.depthTest;
			data.depthWrite = this.depthWrite;

			// rotation (SpriteMaterial)
			if ( this.rotation !== 0 ) data.rotation = this.rotation;

			if ( this.linewidth !== 1 ) data.linewidth = this.linewidth;
			if ( this.dashSize !== undefined ) data.dashSize = this.dashSize;
			if ( this.gapSize !== undefined ) data.gapSize = this.gapSize;
			if ( this.scale !== undefined ) data.scale = this.scale;

			if ( this.dithering === true ) data.dithering = true;

			if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;
			if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;

			if ( this.wireframe === true ) data.wireframe = this.wireframe;
			if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;
			if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;
			if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;

			if ( this.morphTargets === true ) data.morphTargets = true;
			if ( this.skinning === true ) data.skinning = true;

			if ( this.visible === false ) data.visible = false;
			if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;

			// TODO: Copied from Object3D.toJSON

			function extractFromCache( cache ) {

				var values = [];

				for ( var key in cache ) {

					var data = cache[ key ];
					delete data.metadata;
					values.push( data );

				}

				return values;

			}

			if ( isRoot ) {

				var textures = extractFromCache( meta.textures );
				var images = extractFromCache( meta.images );

				if ( textures.length > 0 ) data.textures = textures;
				if ( images.length > 0 ) data.images = images;

			}

			return data;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( source ) {

			this.name = source.name;

			this.fog = source.fog;
			this.lights = source.lights;

			this.blending = source.blending;
			this.side = source.side;
			this.flatShading = source.flatShading;
			this.vertexColors = source.vertexColors;

			this.opacity = source.opacity;
			this.transparent = source.transparent;

			this.blendSrc = source.blendSrc;
			this.blendDst = source.blendDst;
			this.blendEquation = source.blendEquation;
			this.blendSrcAlpha = source.blendSrcAlpha;
			this.blendDstAlpha = source.blendDstAlpha;
			this.blendEquationAlpha = source.blendEquationAlpha;

			this.depthFunc = source.depthFunc;
			this.depthTest = source.depthTest;
			this.depthWrite = source.depthWrite;

			this.colorWrite = source.colorWrite;

			this.precision = source.precision;

			this.polygonOffset = source.polygonOffset;
			this.polygonOffsetFactor = source.polygonOffsetFactor;
			this.polygonOffsetUnits = source.polygonOffsetUnits;

			this.dithering = source.dithering;

			this.alphaTest = source.alphaTest;
			this.premultipliedAlpha = source.premultipliedAlpha;

			this.overdraw = source.overdraw;

			this.visible = source.visible;
			this.userData = JSON.parse( JSON.stringify( source.userData ) );

			this.clipShadows = source.clipShadows;
			this.clipIntersection = source.clipIntersection;

			var srcPlanes = source.clippingPlanes,
				dstPlanes = null;

			if ( srcPlanes !== null ) {

				var n = srcPlanes.length;
				dstPlanes = new Array( n );

				for ( var i = 0; i !== n; ++ i )
					dstPlanes[ i ] = srcPlanes[ i ].clone();

			}

			this.clippingPlanes = dstPlanes;

			this.shadowSide = source.shadowSide;

			return this;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  lightMap: new THREE.Texture( <Image> ),
	 *  lightMapIntensity: <float>
	 *
	 *  aoMap: new THREE.Texture( <Image> ),
	 *  aoMapIntensity: <float>
	 *
	 *  specularMap: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
	 *  combine: THREE.Multiply,
	 *  reflectivity: <float>,
	 *  refractionRatio: <float>,
	 *
	 *  depthTest: <bool>,
	 *  depthWrite: <bool>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>
	 * }
	 */

	function MeshBasicMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshBasicMaterial';

		this.color = new Color( 0xffffff ); // emissive

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.specularMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.skinning = false;
		this.morphTargets = false;

		this.lights = false;

		this.setValues( parameters );

	}

	MeshBasicMaterial.prototype = Object.create( Material.prototype );
	MeshBasicMaterial.prototype.constructor = MeshBasicMaterial;

	MeshBasicMaterial.prototype.isMeshBasicMaterial = true;

	MeshBasicMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.specularMap = source.specularMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;

		return this;

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  defines: { "label" : "value" },
	 *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
	 *
	 *  fragmentShader: <string>,
	 *  vertexShader: <string>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  lights: <bool>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function ShaderMaterial( parameters ) {

		Material.call( this );

		this.type = 'ShaderMaterial';

		this.defines = {};
		this.uniforms = {};

		this.vertexShader = 'void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}';
		this.fragmentShader = 'void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}';

		this.linewidth = 1;

		this.wireframe = false;
		this.wireframeLinewidth = 1;

		this.fog = false; // set to use scene fog
		this.lights = false; // set to use scene lights
		this.clipping = false; // set to use user-defined clipping planes

		this.skinning = false; // set to use skinning attribute streams
		this.morphTargets = false; // set to use morph targets
		this.morphNormals = false; // set to use morph normals

		this.extensions = {
			derivatives: false, // set to use derivatives
			fragDepth: false, // set to use fragment depth values
			drawBuffers: false, // set to use draw buffers
			shaderTextureLOD: false // set to use shader texture LOD
		};

		// When rendered geometry doesn't include these attributes but the material does,
		// use these default values in WebGL. This avoids errors when buffer data is missing.
		this.defaultAttributeValues = {
			'color': [ 1, 1, 1 ],
			'uv': [ 0, 0 ],
			'uv2': [ 0, 0 ]
		};

		this.index0AttributeName = undefined;
		this.uniformsNeedUpdate = false;

		if ( parameters !== undefined ) {

			if ( parameters.attributes !== undefined ) {

				console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );

			}

			this.setValues( parameters );

		}

	}

	ShaderMaterial.prototype = Object.create( Material.prototype );
	ShaderMaterial.prototype.constructor = ShaderMaterial;

	ShaderMaterial.prototype.isShaderMaterial = true;

	ShaderMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.fragmentShader = source.fragmentShader;
		this.vertexShader = source.vertexShader;

		this.uniforms = UniformsUtils.clone( source.uniforms );

		this.defines = Object.assign( {}, source.defines );

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;

		this.lights = source.lights;
		this.clipping = source.clipping;

		this.skinning = source.skinning;

		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		this.extensions = source.extensions;

		return this;

	};

	ShaderMaterial.prototype.toJSON = function ( meta ) {

		var data = Material.prototype.toJSON.call( this, meta );

		data.uniforms = this.uniforms;
		data.vertexShader = this.vertexShader;
		data.fragmentShader = this.fragmentShader;

		return data;

	};

	/**
	 * @author bhouston / http://clara.io
	 */

	function Ray( origin, direction ) {

		this.origin = ( origin !== undefined ) ? origin : new Vector3();
		this.direction = ( direction !== undefined ) ? direction : new Vector3();

	}

	Object.assign( Ray.prototype, {

		set: function ( origin, direction ) {

			this.origin.copy( origin );
			this.direction.copy( direction );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( ray ) {

			this.origin.copy( ray.origin );
			this.direction.copy( ray.direction );

			return this;

		},

		at: function ( t, target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Ray: .at() target is now required' );
				target = new Vector3();

			}

			return target.copy( this.direction ).multiplyScalar( t ).add( this.origin );

		},

		lookAt: function ( v ) {

			this.direction.copy( v ).sub( this.origin ).normalize();

			return this;

		},

		recast: function () {

			var v1 = new Vector3();

			return function recast( t ) {

				this.origin.copy( this.at( t, v1 ) );

				return this;

			};

		}(),

		closestPointToPoint: function ( point, target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Ray: .closestPointToPoint() target is now required' );
				target = new Vector3();

			}

			target.subVectors( point, this.origin );

			var directionDistance = target.dot( this.direction );

			if ( directionDistance < 0 ) {

				return target.copy( this.origin );

			}

			return target.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

		},

		distanceToPoint: function ( point ) {

			return Math.sqrt( this.distanceSqToPoint( point ) );

		},

		distanceSqToPoint: function () {

			var v1 = new Vector3();

			return function distanceSqToPoint( point ) {

				var directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );

				// point behind the ray

				if ( directionDistance < 0 ) {

					return this.origin.distanceToSquared( point );

				}

				v1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

				return v1.distanceToSquared( point );

			};

		}(),

		distanceSqToSegment: function () {

			var segCenter = new Vector3();
			var segDir = new Vector3();
			var diff = new Vector3();

			return function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {

				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h
				// It returns the min distance between the ray and the segment
				// defined by v0 and v1
				// It can also set two optional targets :
				// - The closest point on the ray
				// - The closest point on the segment

				segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
				segDir.copy( v1 ).sub( v0 ).normalize();
				diff.copy( this.origin ).sub( segCenter );

				var segExtent = v0.distanceTo( v1 ) * 0.5;
				var a01 = - this.direction.dot( segDir );
				var b0 = diff.dot( this.direction );
				var b1 = - diff.dot( segDir );
				var c = diff.lengthSq();
				var det = Math.abs( 1 - a01 * a01 );
				var s0, s1, sqrDist, extDet;

				if ( det > 0 ) {

					// The ray and segment are not parallel.

					s0 = a01 * b1 - b0;
					s1 = a01 * b0 - b1;
					extDet = segExtent * det;

					if ( s0 >= 0 ) {

						if ( s1 >= - extDet ) {

							if ( s1 <= extDet ) {

								// region 0
								// Minimum at interior points of ray and segment.

								var invDet = 1 / det;
								s0 *= invDet;
								s1 *= invDet;
								sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;

							} else {

								// region 1

								s1 = segExtent;
								s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
								sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

							}

						} else {

							// region 5

							s1 = - segExtent;
							s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

						}

					} else {

						if ( s1 <= - extDet ) {

							// region 4

							s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
							s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

						} else if ( s1 <= extDet ) {

							// region 3

							s0 = 0;
							s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
							sqrDist = s1 * ( s1 + 2 * b1 ) + c;

						} else {

							// region 2

							s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
							s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

						}

					}

				} else {

					// Ray and segment are parallel.

					s1 = ( a01 > 0 ) ? - segExtent : segExtent;
					s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

				}

				if ( optionalPointOnRay ) {

					optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );

				}

				if ( optionalPointOnSegment ) {

					optionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );

				}

				return sqrDist;

			};

		}(),

		intersectSphere: function () {

			var v1 = new Vector3();

			return function intersectSphere( sphere, target ) {

				v1.subVectors( sphere.center, this.origin );
				var tca = v1.dot( this.direction );
				var d2 = v1.dot( v1 ) - tca * tca;
				var radius2 = sphere.radius * sphere.radius;

				if ( d2 > radius2 ) return null;

				var thc = Math.sqrt( radius2 - d2 );

				// t0 = first intersect point - entrance on front of sphere
				var t0 = tca - thc;

				// t1 = second intersect point - exit point on back of sphere
				var t1 = tca + thc;

				// test to see if both t0 and t1 are behind the ray - if so, return null
				if ( t0 < 0 && t1 < 0 ) return null;

				// test to see if t0 is behind the ray:
				// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
				// in order to always return an intersect point that is in front of the ray.
				if ( t0 < 0 ) return this.at( t1, target );

				// else t0 is in front of the ray, so return the first collision point scaled by t0
				return this.at( t0, target );

			};

		}(),

		intersectsSphere: function ( sphere ) {

			return this.distanceToPoint( sphere.center ) <= sphere.radius;

		},

		distanceToPlane: function ( plane ) {

			var denominator = plane.normal.dot( this.direction );

			if ( denominator === 0 ) {

				// line is coplanar, return origin
				if ( plane.distanceToPoint( this.origin ) === 0 ) {

					return 0;

				}

				// Null is preferable to undefined since undefined means.... it is undefined

				return null;

			}

			var t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;

			// Return if the ray never intersects the plane

			return t >= 0 ? t : null;

		},

		intersectPlane: function ( plane, target ) {

			var t = this.distanceToPlane( plane );

			if ( t === null ) {

				return null;

			}

			return this.at( t, target );

		},

		intersectsPlane: function ( plane ) {

			// check if the ray lies on the plane first

			var distToPoint = plane.distanceToPoint( this.origin );

			if ( distToPoint === 0 ) {

				return true;

			}

			var denominator = plane.normal.dot( this.direction );

			if ( denominator * distToPoint < 0 ) {

				return true;

			}

			// ray origin is behind the plane (and is pointing behind it)

			return false;

		},

		intersectBox: function ( box, target ) {

			var tmin, tmax, tymin, tymax, tzmin, tzmax;

			var invdirx = 1 / this.direction.x,
				invdiry = 1 / this.direction.y,
				invdirz = 1 / this.direction.z;

			var origin = this.origin;

			if ( invdirx >= 0 ) {

				tmin = ( box.min.x - origin.x ) * invdirx;
				tmax = ( box.max.x - origin.x ) * invdirx;

			} else {

				tmin = ( box.max.x - origin.x ) * invdirx;
				tmax = ( box.min.x - origin.x ) * invdirx;

			}

			if ( invdiry >= 0 ) {

				tymin = ( box.min.y - origin.y ) * invdiry;
				tymax = ( box.max.y - origin.y ) * invdiry;

			} else {

				tymin = ( box.max.y - origin.y ) * invdiry;
				tymax = ( box.min.y - origin.y ) * invdiry;

			}

			if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;

			// These lines also handle the case where tmin or tmax is NaN
			// (result of 0 * Infinity). x !== x returns true if x is NaN

			if ( tymin > tmin || tmin !== tmin ) tmin = tymin;

			if ( tymax < tmax || tmax !== tmax ) tmax = tymax;

			if ( invdirz >= 0 ) {

				tzmin = ( box.min.z - origin.z ) * invdirz;
				tzmax = ( box.max.z - origin.z ) * invdirz;

			} else {

				tzmin = ( box.max.z - origin.z ) * invdirz;
				tzmax = ( box.min.z - origin.z ) * invdirz;

			}

			if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;

			if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;

			if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;

			//return point closest to the ray (positive side)

			if ( tmax < 0 ) return null;

			return this.at( tmin >= 0 ? tmin : tmax, target );

		},

		intersectsBox: ( function () {

			var v = new Vector3();

			return function intersectsBox( box ) {

				return this.intersectBox( box, v ) !== null;

			};

		} )(),

		intersectTriangle: function () {

			// Compute the offset origin, edges, and normal.
			var diff = new Vector3();
			var edge1 = new Vector3();
			var edge2 = new Vector3();
			var normal = new Vector3();

			return function intersectTriangle( a, b, c, backfaceCulling, target ) {

				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h

				edge1.subVectors( b, a );
				edge2.subVectors( c, a );
				normal.crossVectors( edge1, edge2 );

				// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
				// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
				//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
				//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
				//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
				var DdN = this.direction.dot( normal );
				var sign;

				if ( DdN > 0 ) {

					if ( backfaceCulling ) return null;
					sign = 1;

				} else if ( DdN < 0 ) {

					sign = - 1;
					DdN = - DdN;

				} else {

					return null;

				}

				diff.subVectors( this.origin, a );
				var DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );

				// b1 < 0, no intersection
				if ( DdQxE2 < 0 ) {

					return null;

				}

				var DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );

				// b2 < 0, no intersection
				if ( DdE1xQ < 0 ) {

					return null;

				}

				// b1+b2 > 1, no intersection
				if ( DdQxE2 + DdE1xQ > DdN ) {

					return null;

				}

				// Line intersects triangle, check if ray does.
				var QdN = - sign * diff.dot( normal );

				// t < 0, no intersection
				if ( QdN < 0 ) {

					return null;

				}

				// Ray intersects triangle.
				return this.at( QdN / DdN, target );

			};

		}(),

		applyMatrix4: function ( matrix4 ) {

			this.origin.applyMatrix4( matrix4 );
			this.direction.transformDirection( matrix4 );

			return this;

		},

		equals: function ( ray ) {

			return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Triangle( a, b, c ) {

		this.a = ( a !== undefined ) ? a : new Vector3();
		this.b = ( b !== undefined ) ? b : new Vector3();
		this.c = ( c !== undefined ) ? c : new Vector3();

	}

	Object.assign( Triangle, {

		getNormal: function () {

			var v0 = new Vector3();

			return function getNormal( a, b, c, target ) {

				if ( target === undefined ) {

					console.warn( 'THREE.Triangle: .getNormal() target is now required' );
					target = new Vector3();

				}

				target.subVectors( c, b );
				v0.subVectors( a, b );
				target.cross( v0 );

				var targetLengthSq = target.lengthSq();
				if ( targetLengthSq > 0 ) {

					return target.multiplyScalar( 1 / Math.sqrt( targetLengthSq ) );

				}

				return target.set( 0, 0, 0 );

			};

		}(),

		// static/instance method to calculate barycentric coordinates
		// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
		getBarycoord: function () {

			var v0 = new Vector3();
			var v1 = new Vector3();
			var v2 = new Vector3();

			return function getBarycoord( point, a, b, c, target ) {

				v0.subVectors( c, a );
				v1.subVectors( b, a );
				v2.subVectors( point, a );

				var dot00 = v0.dot( v0 );
				var dot01 = v0.dot( v1 );
				var dot02 = v0.dot( v2 );
				var dot11 = v1.dot( v1 );
				var dot12 = v1.dot( v2 );

				var denom = ( dot00 * dot11 - dot01 * dot01 );

				if ( target === undefined ) {

					console.warn( 'THREE.Triangle: .getBarycoord() target is now required' );
					target = new Vector3();

				}

				// collinear or singular triangle
				if ( denom === 0 ) {

					// arbitrary location outside of triangle?
					// not sure if this is the best idea, maybe should be returning undefined
					return target.set( - 2, - 1, - 1 );

				}

				var invDenom = 1 / denom;
				var u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;
				var v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;

				// barycentric coordinates must always sum to 1
				return target.set( 1 - u - v, v, u );

			};

		}(),

		containsPoint: function () {

			var v1 = new Vector3();

			return function containsPoint( point, a, b, c ) {

				Triangle.getBarycoord( point, a, b, c, v1 );

				return ( v1.x >= 0 ) && ( v1.y >= 0 ) && ( ( v1.x + v1.y ) <= 1 );

			};

		}()

	} );

	Object.assign( Triangle.prototype, {

		set: function ( a, b, c ) {

			this.a.copy( a );
			this.b.copy( b );
			this.c.copy( c );

			return this;

		},

		setFromPointsAndIndices: function ( points, i0, i1, i2 ) {

			this.a.copy( points[ i0 ] );
			this.b.copy( points[ i1 ] );
			this.c.copy( points[ i2 ] );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( triangle ) {

			this.a.copy( triangle.a );
			this.b.copy( triangle.b );
			this.c.copy( triangle.c );

			return this;

		},

		getArea: function () {

			var v0 = new Vector3();
			var v1 = new Vector3();

			return function getArea() {

				v0.subVectors( this.c, this.b );
				v1.subVectors( this.a, this.b );

				return v0.cross( v1 ).length() * 0.5;

			};

		}(),

		getMidpoint: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Triangle: .getMidpoint() target is now required' );
				target = new Vector3();

			}

			return target.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );

		},

		getNormal: function ( target ) {

			return Triangle.getNormal( this.a, this.b, this.c, target );

		},

		getPlane: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Triangle: .getPlane() target is now required' );
				target = new Vector3();

			}

			return target.setFromCoplanarPoints( this.a, this.b, this.c );

		},

		getBarycoord: function ( point, target ) {

			return Triangle.getBarycoord( point, this.a, this.b, this.c, target );

		},

		containsPoint: function ( point ) {

			return Triangle.containsPoint( point, this.a, this.b, this.c );

		},

		intersectsBox: function ( box ) {

			return box.intersectsTriangle( this );

		},

		closestPointToPoint: function () {

			var vab = new Vector3();
			var vac = new Vector3();
			var vbc = new Vector3();
			var vap = new Vector3();
			var vbp = new Vector3();
			var vcp = new Vector3();

			return function closestPointToPoint( p, target ) {

				if ( target === undefined ) {

					console.warn( 'THREE.Triangle: .closestPointToPoint() target is now required' );
					target = new Vector3();

				}

				var a = this.a, b = this.b, c = this.c;
				var v, w;

				// algorithm thanks to Real-Time Collision Detection by Christer Ericson,
				// published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,
				// under the accompanying license; see chapter 5.1.5 for detailed explanation.
				// basically, we're distinguishing which of the voronoi regions of the triangle
				// the point lies in with the minimum amount of redundant computation.

				vab.subVectors( b, a );
				vac.subVectors( c, a );
				vap.subVectors( p, a );
				var d1 = vab.dot( vap );
				var d2 = vac.dot( vap );
				if ( d1 <= 0 && d2 <= 0 ) {

					// vertex region of A; barycentric coords (1, 0, 0)
					return target.copy( a );

				}

				vbp.subVectors( p, b );
				var d3 = vab.dot( vbp );
				var d4 = vac.dot( vbp );
				if ( d3 >= 0 && d4 <= d3 ) {

					// vertex region of B; barycentric coords (0, 1, 0)
					return target.copy( b );

				}

				var vc = d1 * d4 - d3 * d2;
				if ( vc <= 0 && d1 >= 0 && d3 <= 0 ) {

					v = d1 / ( d1 - d3 );
					// edge region of AB; barycentric coords (1-v, v, 0)
					return target.copy( a ).addScaledVector( vab, v );

				}

				vcp.subVectors( p, c );
				var d5 = vab.dot( vcp );
				var d6 = vac.dot( vcp );
				if ( d6 >= 0 && d5 <= d6 ) {

					// vertex region of C; barycentric coords (0, 0, 1)
					return target.copy( c );

				}

				var vb = d5 * d2 - d1 * d6;
				if ( vb <= 0 && d2 >= 0 && d6 <= 0 ) {

					w = d2 / ( d2 - d6 );
					// edge region of AC; barycentric coords (1-w, 0, w)
					return target.copy( a ).addScaledVector( vac, w );

				}

				var va = d3 * d6 - d5 * d4;
				if ( va <= 0 && ( d4 - d3 ) >= 0 && ( d5 - d6 ) >= 0 ) {

					vbc.subVectors( c, b );
					w = ( d4 - d3 ) / ( ( d4 - d3 ) + ( d5 - d6 ) );
					// edge region of BC; barycentric coords (0, 1-w, w)
					return target.copy( b ).addScaledVector( vbc, w ); // edge region of BC

				}

				// face region
				var denom = 1 / ( va + vb + vc );
				// u = va * denom
				v = vb * denom;
				w = vc * denom;
				return target.copy( a ).addScaledVector( vab, v ).addScaledVector( vac, w );

			};

		}(),

		equals: function ( triangle ) {

			return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author jonobr1 / http://jonobr1.com/
	 */

	function Mesh( geometry, material ) {

		Object3D.call( this );

		this.type = 'Mesh';

		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
		this.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } );

		this.drawMode = TrianglesDrawMode;

		this.updateMorphTargets();

	}

	Mesh.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Mesh,

		isMesh: true,

		setDrawMode: function ( value ) {

			this.drawMode = value;

		},

		copy: function ( source ) {

			Object3D.prototype.copy.call( this, source );

			this.drawMode = source.drawMode;

			if ( source.morphTargetInfluences !== undefined ) {

				this.morphTargetInfluences = source.morphTargetInfluences.slice();

			}

			if ( source.morphTargetDictionary !== undefined ) {

				this.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary );

			}

			return this;

		},

		updateMorphTargets: function () {

			var geometry = this.geometry;
			var m, ml, name;

			if ( geometry.isBufferGeometry ) {

				var morphAttributes = geometry.morphAttributes;
				var keys = Object.keys( morphAttributes );

				if ( keys.length > 0 ) {

					var morphAttribute = morphAttributes[ keys[ 0 ] ];

					if ( morphAttribute !== undefined ) {

						this.morphTargetInfluences = [];
						this.morphTargetDictionary = {};

						for ( m = 0, ml = morphAttribute.length; m < ml; m ++ ) {

							name = morphAttribute[ m ].name || String( m );

							this.morphTargetInfluences.push( 0 );
							this.morphTargetDictionary[ name ] = m;

						}

					}

				}

			} else {

				var morphTargets = geometry.morphTargets;

				if ( morphTargets !== undefined && morphTargets.length > 0 ) {

					this.morphTargetInfluences = [];
					this.morphTargetDictionary = {};

					for ( m = 0, ml = morphTargets.length; m < ml; m ++ ) {

						name = morphTargets[ m ].name || String( m );

						this.morphTargetInfluences.push( 0 );
						this.morphTargetDictionary[ name ] = m;

					}

				}

			}

		},

		raycast: ( function () {

			var inverseMatrix = new Matrix4();
			var ray = new Ray();
			var sphere = new Sphere();

			var vA = new Vector3();
			var vB = new Vector3();
			var vC = new Vector3();

			var tempA = new Vector3();
			var tempB = new Vector3();
			var tempC = new Vector3();

			var uvA = new Vector2();
			var uvB = new Vector2();
			var uvC = new Vector2();

			var barycoord = new Vector3();

			var intersectionPoint = new Vector3();
			var intersectionPointWorld = new Vector3();

			function uvIntersection( point, p1, p2, p3, uv1, uv2, uv3 ) {

				Triangle.getBarycoord( point, p1, p2, p3, barycoord );

				uv1.multiplyScalar( barycoord.x );
				uv2.multiplyScalar( barycoord.y );
				uv3.multiplyScalar( barycoord.z );

				uv1.add( uv2 ).add( uv3 );

				return uv1.clone();

			}

			function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {

				var intersect;

				if ( material.side === BackSide ) {

					intersect = ray.intersectTriangle( pC, pB, pA, true, point );

				} else {

					intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );

				}

				if ( intersect === null ) return null;

				intersectionPointWorld.copy( point );
				intersectionPointWorld.applyMatrix4( object.matrixWorld );

				var distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );

				if ( distance < raycaster.near || distance > raycaster.far ) return null;

				return {
					distance: distance,
					point: intersectionPointWorld.clone(),
					object: object
				};

			}

			function checkBufferGeometryIntersection( object, material, raycaster, ray, position, uv, a, b, c ) {

				vA.fromBufferAttribute( position, a );
				vB.fromBufferAttribute( position, b );
				vC.fromBufferAttribute( position, c );

				var intersection = checkIntersection( object, material, raycaster, ray, vA, vB, vC, intersectionPoint );

				if ( intersection ) {

					if ( uv ) {

						uvA.fromBufferAttribute( uv, a );
						uvB.fromBufferAttribute( uv, b );
						uvC.fromBufferAttribute( uv, c );

						intersection.uv = uvIntersection( intersectionPoint, vA, vB, vC, uvA, uvB, uvC );

					}

					var face = new Face3( a, b, c );
					Triangle.getNormal( vA, vB, vC, face.normal );

					intersection.face = face;

				}

				return intersection;

			}

			return function raycast( raycaster, intersects ) {

				var geometry = this.geometry;
				var material = this.material;
				var matrixWorld = this.matrixWorld;

				if ( material === undefined ) return;

				// Checking boundingSphere distance to ray

				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

				sphere.copy( geometry.boundingSphere );
				sphere.applyMatrix4( matrixWorld );

				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;

				//

				inverseMatrix.getInverse( matrixWorld );
				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );

				// Check boundingBox before continuing

				if ( geometry.boundingBox !== null ) {

					if ( ray.intersectsBox( geometry.boundingBox ) === false ) return;

				}

				var intersection;

				if ( geometry.isBufferGeometry ) {

					var a, b, c;
					var index = geometry.index;
					var position = geometry.attributes.position;
					var uv = geometry.attributes.uv;
					var groups = geometry.groups;
					var drawRange = geometry.drawRange;
					var i, j, il, jl;
					var group, groupMaterial;
					var start, end;

					if ( index !== null ) {

						// indexed buffer geometry

						if ( Array.isArray( material ) ) {

							for ( i = 0, il = groups.length; i < il; i ++ ) {

								group = groups[ i ];
								groupMaterial = material[ group.materialIndex ];

								start = Math.max( group.start, drawRange.start );
								end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );

								for ( j = start, jl = end; j < jl; j += 3 ) {

									a = index.getX( j );
									b = index.getX( j + 1 );
									c = index.getX( j + 2 );

									intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, uv, a, b, c );

									if ( intersection ) {

										intersection.faceIndex = Math.floor( j / 3 ); // triangle number in indexed buffer semantics
										intersects.push( intersection );

									}

								}

							}

						} else {

							start = Math.max( 0, drawRange.start );
							end = Math.min( index.count, ( drawRange.start + drawRange.count ) );

							for ( i = start, il = end; i < il; i += 3 ) {

								a = index.getX( i );
								b = index.getX( i + 1 );
								c = index.getX( i + 2 );

								intersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, uv, a, b, c );

								if ( intersection ) {

									intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indexed buffer semantics
									intersects.push( intersection );

								}

							}

						}

					} else if ( position !== undefined ) {

						// non-indexed buffer geometry

						if ( Array.isArray( material ) ) {

							for ( i = 0, il = groups.length; i < il; i ++ ) {

								group = groups[ i ];
								groupMaterial = material[ group.materialIndex ];

								start = Math.max( group.start, drawRange.start );
								end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );

								for ( j = start, jl = end; j < jl; j += 3 ) {

									a = j;
									b = j + 1;
									c = j + 2;

									intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, uv, a, b, c );

									if ( intersection ) {

										intersection.faceIndex = Math.floor( j / 3 ); // triangle number in non-indexed buffer semantics
										intersects.push( intersection );

									}

								}

							}

						} else {

							start = Math.max( 0, drawRange.start );
							end = Math.min( position.count, ( drawRange.start + drawRange.count ) );

							for ( i = start, il = end; i < il; i += 3 ) {

								a = i;
								b = i + 1;
								c = i + 2;

								intersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, uv, a, b, c );

								if ( intersection ) {

									intersection.faceIndex = Math.floor( i / 3 ); // triangle number in non-indexed buffer semantics
									intersects.push( intersection );

								}

							}

						}

					}

				} else if ( geometry.isGeometry ) {

					var fvA, fvB, fvC;
					var isMultiMaterial = Array.isArray( material );

					var vertices = geometry.vertices;
					var faces = geometry.faces;
					var uvs;

					var faceVertexUvs = geometry.faceVertexUvs[ 0 ];
					if ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;

					for ( var f = 0, fl = faces.length; f < fl; f ++ ) {

						var face = faces[ f ];
						var faceMaterial = isMultiMaterial ? material[ face.materialIndex ] : material;

						if ( faceMaterial === undefined ) continue;

						fvA = vertices[ face.a ];
						fvB = vertices[ face.b ];
						fvC = vertices[ face.c ];

						if ( faceMaterial.morphTargets === true ) {

							var morphTargets = geometry.morphTargets;
							var morphInfluences = this.morphTargetInfluences;

							vA.set( 0, 0, 0 );
							vB.set( 0, 0, 0 );
							vC.set( 0, 0, 0 );

							for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {

								var influence = morphInfluences[ t ];

								if ( influence === 0 ) continue;

								var targets = morphTargets[ t ].vertices;

								vA.addScaledVector( tempA.subVectors( targets[ face.a ], fvA ), influence );
								vB.addScaledVector( tempB.subVectors( targets[ face.b ], fvB ), influence );
								vC.addScaledVector( tempC.subVectors( targets[ face.c ], fvC ), influence );

							}

							vA.add( fvA );
							vB.add( fvB );
							vC.add( fvC );

							fvA = vA;
							fvB = vB;
							fvC = vC;

						}

						intersection = checkIntersection( this, faceMaterial, raycaster, ray, fvA, fvB, fvC, intersectionPoint );

						if ( intersection ) {

							if ( uvs && uvs[ f ] ) {

								var uvs_f = uvs[ f ];
								uvA.copy( uvs_f[ 0 ] );
								uvB.copy( uvs_f[ 1 ] );
								uvC.copy( uvs_f[ 2 ] );

								intersection.uv = uvIntersection( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC );

							}

							intersection.face = face;
							intersection.faceIndex = f;
							intersects.push( intersection );

						}

					}

				}

			};

		}() ),

		clone: function () {

			return new this.constructor( this.geometry, this.material ).copy( this );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLBackground( renderer, state, objects, premultipliedAlpha ) {

		var clearColor = new Color( 0x000000 );
		var clearAlpha = 0;

		var planeCamera, planeMesh;
		var boxMesh;

		function render( renderList, scene, camera, forceClear ) {

			var background = scene.background;

			if ( background === null ) {

				setClear( clearColor, clearAlpha );

			} else if ( background && background.isColor ) {

				setClear( background, 1 );
				forceClear = true;

			}

			if ( renderer.autoClear || forceClear ) {

				renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );

			}

			if ( background && background.isCubeTexture ) {

				if ( boxMesh === undefined ) {

					boxMesh = new Mesh(
						new BoxBufferGeometry( 1, 1, 1 ),
						new ShaderMaterial( {
							uniforms: ShaderLib.cube.uniforms,
							vertexShader: ShaderLib.cube.vertexShader,
							fragmentShader: ShaderLib.cube.fragmentShader,
							side: BackSide,
							depthTest: true,
							depthWrite: false,
							fog: false
						} )
					);

					boxMesh.geometry.removeAttribute( 'normal' );
					boxMesh.geometry.removeAttribute( 'uv' );

					boxMesh.onBeforeRender = function ( renderer, scene, camera ) {

						this.matrixWorld.copyPosition( camera.matrixWorld );

					};

					objects.update( boxMesh );

				}

				boxMesh.material.uniforms.tCube.value = background;

				renderList.push( boxMesh, boxMesh.geometry, boxMesh.material, 0, null );

			} else if ( background && background.isTexture ) {

				if ( planeCamera === undefined ) {

					planeCamera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );

					planeMesh = new Mesh(
						new PlaneBufferGeometry( 2, 2 ),
						new MeshBasicMaterial( { depthTest: false, depthWrite: false, fog: false } )
					);

					objects.update( planeMesh );

				}

				planeMesh.material.map = background;

				// TODO Push this to renderList

				renderer.renderBufferDirect( planeCamera, null, planeMesh.geometry, planeMesh.material, planeMesh, null );

			}

		}

		function setClear( color, alpha ) {

			state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );

		}

		return {

			getClearColor: function () {

				return clearColor;

			},
			setClearColor: function ( color, alpha ) {

				clearColor.set( color );
				clearAlpha = alpha !== undefined ? alpha : 1;
				setClear( clearColor, clearAlpha );

			},
			getClearAlpha: function () {

				return clearAlpha;

			},
			setClearAlpha: function ( alpha ) {

				clearAlpha = alpha;
				setClear( clearColor, clearAlpha );

			},
			render: render

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLBufferRenderer( gl, extensions, info, capabilities ) {

		var mode;

		function setMode( value ) {

			mode = value;

		}

		function render( start, count ) {

			gl.drawArrays( mode, start, count );

			info.update( count, mode );

		}

		function renderInstances( geometry, start, count ) {

			var extension;

			if ( capabilities.isWebGL2 ) {

				extension = gl;

			} else {

				extension = extensions.get( 'ANGLE_instanced_arrays' );

				if ( extension === null ) {

					console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
					return;

				}

			}

			extension[ capabilities.isWebGL2 ? 'drawArraysInstanced' : 'drawArraysInstancedANGLE' ]( mode, start, count, geometry.maxInstancedCount );

			info.update( count, mode, geometry.maxInstancedCount );

		}

		//

		this.setMode = setMode;
		this.render = render;
		this.renderInstances = renderInstances;

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLCapabilities( gl, extensions, parameters ) {

		var maxAnisotropy;

		function getMaxAnisotropy() {

			if ( maxAnisotropy !== undefined ) return maxAnisotropy;

			var extension = extensions.get( 'EXT_texture_filter_anisotropic' );

			if ( extension !== null ) {

				maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );

			} else {

				maxAnisotropy = 0;

			}

			return maxAnisotropy;

		}

		function getMaxPrecision( precision ) {

			if ( precision === 'highp' ) {

				if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.HIGH_FLOAT ).precision > 0 &&
				     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.HIGH_FLOAT ).precision > 0 ) {

					return 'highp';

				}

				precision = 'mediump';

			}

			if ( precision === 'mediump' ) {

				if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.MEDIUM_FLOAT ).precision > 0 &&
				     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT ).precision > 0 ) {

					return 'mediump';

				}

			}

			return 'lowp';

		}

		var isWebGL2 = typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext;

		var precision = parameters.precision !== undefined ? parameters.precision : 'highp';
		var maxPrecision = getMaxPrecision( precision );

		if ( maxPrecision !== precision ) {

			console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );
			precision = maxPrecision;

		}

		var logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;

		var maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );
		var maxVertexTextures = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS );
		var maxTextureSize = gl.getParameter( gl.MAX_TEXTURE_SIZE );
		var maxCubemapSize = gl.getParameter( gl.MAX_CUBE_MAP_TEXTURE_SIZE );

		var maxAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );
		var maxVertexUniforms = gl.getParameter( gl.MAX_VERTEX_UNIFORM_VECTORS );
		var maxVaryings = gl.getParameter( gl.MAX_VARYING_VECTORS );
		var maxFragmentUniforms = gl.getParameter( gl.MAX_FRAGMENT_UNIFORM_VECTORS );

		var vertexTextures = maxVertexTextures > 0;
		var floatFragmentTextures = isWebGL2 || !! extensions.get( 'OES_texture_float' );
		var floatVertexTextures = vertexTextures && floatFragmentTextures;

		return {

			isWebGL2: isWebGL2,

			getMaxAnisotropy: getMaxAnisotropy,
			getMaxPrecision: getMaxPrecision,

			precision: precision,
			logarithmicDepthBuffer: logarithmicDepthBuffer,

			maxTextures: maxTextures,
			maxVertexTextures: maxVertexTextures,
			maxTextureSize: maxTextureSize,
			maxCubemapSize: maxCubemapSize,

			maxAttributes: maxAttributes,
			maxVertexUniforms: maxVertexUniforms,
			maxVaryings: maxVaryings,
			maxFragmentUniforms: maxFragmentUniforms,

			vertexTextures: vertexTextures,
			floatFragmentTextures: floatFragmentTextures,
			floatVertexTextures: floatVertexTextures

		};

	}

	/**
	 * @author tschw
	 */

	function WebGLClipping() {

		var scope = this,

			globalState = null,
			numGlobalPlanes = 0,
			localClippingEnabled = false,
			renderingShadows = false,

			plane = new Plane(),
			viewNormalMatrix = new Matrix3(),

			uniform = { value: null, needsUpdate: false };

		this.uniform = uniform;
		this.numPlanes = 0;
		this.numIntersection = 0;

		this.init = function ( planes, enableLocalClipping, camera ) {

			var enabled =
				planes.length !== 0 ||
				enableLocalClipping ||
				// enable state of previous frame - the clipping code has to
				// run another frame in order to reset the state:
				numGlobalPlanes !== 0 ||
				localClippingEnabled;

			localClippingEnabled = enableLocalClipping;

			globalState = projectPlanes( planes, camera, 0 );
			numGlobalPlanes = planes.length;

			return enabled;

		};

		this.beginShadows = function () {

			renderingShadows = true;
			projectPlanes( null );

		};

		this.endShadows = function () {

			renderingShadows = false;
			resetGlobalState();

		};

		this.setState = function ( planes, clipIntersection, clipShadows, camera, cache, fromCache ) {

			if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {

				// there's no local clipping

				if ( renderingShadows ) {

					// there's no global clipping

					projectPlanes( null );

				} else {

					resetGlobalState();

				}

			} else {

				var nGlobal = renderingShadows ? 0 : numGlobalPlanes,
					lGlobal = nGlobal * 4,

					dstArray = cache.clippingState || null;

				uniform.value = dstArray; // ensure unique state

				dstArray = projectPlanes( planes, camera, lGlobal, fromCache );

				for ( var i = 0; i !== lGlobal; ++ i ) {

					dstArray[ i ] = globalState[ i ];

				}

				cache.clippingState = dstArray;
				this.numIntersection = clipIntersection ? this.numPlanes : 0;
				this.numPlanes += nGlobal;

			}


		};

		function resetGlobalState() {

			if ( uniform.value !== globalState ) {

				uniform.value = globalState;
				uniform.needsUpdate = numGlobalPlanes > 0;

			}

			scope.numPlanes = numGlobalPlanes;
			scope.numIntersection = 0;

		}

		function projectPlanes( planes, camera, dstOffset, skipTransform ) {

			var nPlanes = planes !== null ? planes.length : 0,
				dstArray = null;

			if ( nPlanes !== 0 ) {

				dstArray = uniform.value;

				if ( skipTransform !== true || dstArray === null ) {

					var flatSize = dstOffset + nPlanes * 4,
						viewMatrix = camera.matrixWorldInverse;

					viewNormalMatrix.getNormalMatrix( viewMatrix );

					if ( dstArray === null || dstArray.length < flatSize ) {

						dstArray = new Float32Array( flatSize );

					}

					for ( var i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {

						plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );

						plane.normal.toArray( dstArray, i4 );
						dstArray[ i4 + 3 ] = plane.constant;

					}

				}

				uniform.value = dstArray;
				uniform.needsUpdate = true;

			}

			scope.numPlanes = nPlanes;

			return dstArray;

		}

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLExtensions( gl ) {

		var extensions = {};

		return {

			get: function ( name ) {

				if ( extensions[ name ] !== undefined ) {

					return extensions[ name ];

				}

				var extension;

				switch ( name ) {

					case 'WEBGL_depth_texture':
						extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );
						break;

					case 'EXT_texture_filter_anisotropic':
						extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );
						break;

					case 'WEBGL_compressed_texture_s3tc':
						extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );
						break;

					case 'WEBGL_compressed_texture_pvrtc':
						extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
						break;

					default:
						extension = gl.getExtension( name );

				}

				if ( extension === null ) {

					console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );

				}

				extensions[ name ] = extension;

				return extension;

			}

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLGeometries( gl, attributes, info ) {

		var geometries = {};
		var wireframeAttributes = {};

		function onGeometryDispose( event ) {

			var geometry = event.target;
			var buffergeometry = geometries[ geometry.id ];

			if ( buffergeometry.index !== null ) {

				attributes.remove( buffergeometry.index );

			}

			for ( var name in buffergeometry.attributes ) {

				attributes.remove( buffergeometry.attributes[ name ] );

			}

			geometry.removeEventListener( 'dispose', onGeometryDispose );

			delete geometries[ geometry.id ];

			var attribute = wireframeAttributes[ buffergeometry.id ];

			if ( attribute ) {

				attributes.remove( attribute );
				delete wireframeAttributes[ buffergeometry.id ];

			}

			//

			info.memory.geometries --;

		}

		function get( object, geometry ) {

			var buffergeometry = geometries[ geometry.id ];

			if ( buffergeometry ) return buffergeometry;

			geometry.addEventListener( 'dispose', onGeometryDispose );

			if ( geometry.isBufferGeometry ) {

				buffergeometry = geometry;

			} else if ( geometry.isGeometry ) {

				if ( geometry._bufferGeometry === undefined ) {

					geometry._bufferGeometry = new BufferGeometry().setFromObject( object );

				}

				buffergeometry = geometry._bufferGeometry;

			}

			geometries[ geometry.id ] = buffergeometry;

			info.memory.geometries ++;

			return buffergeometry;

		}

		function update( geometry ) {

			var index = geometry.index;
			var geometryAttributes = geometry.attributes;

			if ( index !== null ) {

				attributes.update( index, gl.ELEMENT_ARRAY_BUFFER );

			}

			for ( var name in geometryAttributes ) {

				attributes.update( geometryAttributes[ name ], gl.ARRAY_BUFFER );

			}

			// morph targets

			var morphAttributes = geometry.morphAttributes;

			for ( var name in morphAttributes ) {

				var array = morphAttributes[ name ];

				for ( var i = 0, l = array.length; i < l; i ++ ) {

					attributes.update( array[ i ], gl.ARRAY_BUFFER );

				}

			}

		}

		function getWireframeAttribute( geometry ) {

			var attribute = wireframeAttributes[ geometry.id ];

			if ( attribute ) return attribute;

			var indices = [];

			var geometryIndex = geometry.index;
			var geometryAttributes = geometry.attributes;

			// console.time( 'wireframe' );

			if ( geometryIndex !== null ) {

				var array = geometryIndex.array;

				for ( var i = 0, l = array.length; i < l; i += 3 ) {

					var a = array[ i + 0 ];
					var b = array[ i + 1 ];
					var c = array[ i + 2 ];

					indices.push( a, b, b, c, c, a );

				}

			} else {

				var array = geometryAttributes.position.array;

				for ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {

					var a = i + 0;
					var b = i + 1;
					var c = i + 2;

					indices.push( a, b, b, c, c, a );

				}

			}

			// console.timeEnd( 'wireframe' );

			attribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );

			attributes.update( attribute, gl.ELEMENT_ARRAY_BUFFER );

			wireframeAttributes[ geometry.id ] = attribute;

			return attribute;

		}

		return {

			get: get,
			update: update,

			getWireframeAttribute: getWireframeAttribute

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLIndexedBufferRenderer( gl, extensions, info, capabilities ) {

		var mode;

		function setMode( value ) {

			mode = value;

		}

		var type, bytesPerElement;

		function setIndex( value ) {

			type = value.type;
			bytesPerElement = value.bytesPerElement;

		}

		function render( start, count ) {

			gl.drawElements( mode, count, type, start * bytesPerElement );

			info.update( count, mode );

		}

		function renderInstances( geometry, start, count ) {

			var extension;

			if ( capabilities.isWebGL2 ) {

				extension = gl;

			} else {

				var extension = extensions.get( 'ANGLE_instanced_arrays' );

				if ( extension === null ) {

					console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
					return;

				}

			}

			extension[ capabilities.isWebGL2 ? 'drawElementsInstanced' : 'drawElementsInstancedANGLE' ]( mode, count, type, start * bytesPerElement, geometry.maxInstancedCount );

			info.update( count, mode, geometry.maxInstancedCount );

		}

		//

		this.setMode = setMode;
		this.setIndex = setIndex;
		this.render = render;
		this.renderInstances = renderInstances;

	}

	/**
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function WebGLInfo( gl ) {

		var memory = {
			geometries: 0,
			textures: 0
		};

		var render = {
			frame: 0,
			calls: 0,
			triangles: 0,
			points: 0,
			lines: 0
		};

		function update( count, mode, instanceCount ) {

			instanceCount = instanceCount || 1;

			render.calls ++;

			switch ( mode ) {

				case gl.TRIANGLES:
					render.triangles += instanceCount * ( count / 3 );
					break;

				case gl.TRIANGLE_STRIP:
				case gl.TRIANGLE_FAN:
					render.triangles += instanceCount * ( count - 2 );
					break;

				case gl.LINES:
					render.lines += instanceCount * ( count / 2 );
					break;

				case gl.LINE_STRIP:
					render.lines += instanceCount * ( count - 1 );
					break;

				case gl.LINE_LOOP:
					render.lines += instanceCount * count;
					break;

				case gl.POINTS:
					render.points += instanceCount * count;
					break;

				default:
					console.error( 'THREE.WebGLInfo: Unknown draw mode:', mode );
					break;

			}

		}

		function reset() {

			render.frame ++;
			render.calls = 0;
			render.triangles = 0;
			render.points = 0;
			render.lines = 0;

		}

		return {
			memory: memory,
			render: render,
			programs: null,
			autoReset: true,
			reset: reset,
			update: update
		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function absNumericalSort( a, b ) {

		return Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] );

	}

	function WebGLMorphtargets( gl ) {

		var influencesList = {};
		var morphInfluences = new Float32Array( 8 );

		function update( object, geometry, material, program ) {

			var objectInfluences = object.morphTargetInfluences;

			var length = objectInfluences.length;

			var influences = influencesList[ geometry.id ];

			if ( influences === undefined ) {

				// initialise list

				influences = [];

				for ( var i = 0; i < length; i ++ ) {

					influences[ i ] = [ i, 0 ];

				}

				influencesList[ geometry.id ] = influences;

			}

			var morphTargets = material.morphTargets && geometry.morphAttributes.position;
			var morphNormals = material.morphNormals && geometry.morphAttributes.normal;

			// Remove current morphAttributes

			for ( var i = 0; i < length; i ++ ) {

				var influence = influences[ i ];

				if ( influence[ 1 ] !== 0 ) {

					if ( morphTargets ) geometry.removeAttribute( 'morphTarget' + i );
					if ( morphNormals ) geometry.removeAttribute( 'morphNormal' + i );

				}

			}

			// Collect influences

			for ( var i = 0; i < length; i ++ ) {

				var influence = influences[ i ];

				influence[ 0 ] = i;
				influence[ 1 ] = objectInfluences[ i ];

			}

			influences.sort( absNumericalSort );

			// Add morphAttributes

			for ( var i = 0; i < 8; i ++ ) {

				var influence = influences[ i ];

				if ( influence ) {

					var index = influence[ 0 ];
					var value = influence[ 1 ];

					if ( value ) {

						if ( morphTargets ) geometry.addAttribute( 'morphTarget' + i, morphTargets[ index ] );
						if ( morphNormals ) geometry.addAttribute( 'morphNormal' + i, morphNormals[ index ] );

						morphInfluences[ i ] = value;
						continue;

					}

				}

				morphInfluences[ i ] = 0;

			}

			program.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences );

		}

		return {

			update: update

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLObjects( geometries, info ) {

		var updateList = {};

		function update( object ) {

			var frame = info.render.frame;

			var geometry = object.geometry;
			var buffergeometry = geometries.get( object, geometry );

			// Update once per frame

			if ( updateList[ buffergeometry.id ] !== frame ) {

				if ( geometry.isGeometry ) {

					buffergeometry.updateFromObject( object );

				}

				geometries.update( buffergeometry );

				updateList[ buffergeometry.id ] = frame;

			}

			return buffergeometry;

		}

		function dispose() {

			updateList = {};

		}

		return {

			update: update,
			dispose: dispose

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {

		images = images !== undefined ? images : [];
		mapping = mapping !== undefined ? mapping : CubeReflectionMapping;

		Texture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

		this.flipY = false;

	}

	CubeTexture.prototype = Object.create( Texture.prototype );
	CubeTexture.prototype.constructor = CubeTexture;

	CubeTexture.prototype.isCubeTexture = true;

	Object.defineProperty( CubeTexture.prototype, 'images', {

		get: function () {

			return this.image;

		},

		set: function ( value ) {

			this.image = value;

		}

	} );

	/**
	 * @author tschw
	 * @author Mugen87 / https://github.com/Mugen87
	 * @author mrdoob / http://mrdoob.com/
	 *
	 * Uniforms of a program.
	 * Those form a tree structure with a special top-level container for the root,
	 * which you get by calling 'new WebGLUniforms( gl, program, renderer )'.
	 *
	 *
	 * Properties of inner nodes including the top-level container:
	 *
	 * .seq - array of nested uniforms
	 * .map - nested uniforms by name
	 *
	 *
	 * Methods of all nodes except the top-level container:
	 *
	 * .setValue( gl, value, [renderer] )
	 *
	 * 		uploads a uniform value(s)
	 *  	the 'renderer' parameter is needed for sampler uniforms
	 *
	 *
	 * Static methods of the top-level container (renderer factorizations):
	 *
	 * .upload( gl, seq, values, renderer )
	 *
	 * 		sets uniforms in 'seq' to 'values[id].value'
	 *
	 * .seqWithValue( seq, values ) : filteredSeq
	 *
	 * 		filters 'seq' entries with corresponding entry in values
	 *
	 *
	 * Methods of the top-level container (renderer factorizations):
	 *
	 * .setValue( gl, name, value )
	 *
	 * 		sets uniform with  name 'name' to 'value'
	 *
	 * .set( gl, obj, prop )
	 *
	 * 		sets uniform from object and property with same name than uniform
	 *
	 * .setOptional( gl, obj, prop )
	 *
	 * 		like .set for an optional property of the object
	 *
	 */

	var emptyTexture = new Texture();
	var emptyCubeTexture = new CubeTexture();

	// --- Base for inner nodes (including the root) ---

	function UniformContainer() {

		this.seq = [];
		this.map = {};

	}

	// --- Utilities ---

	// Array Caches (provide typed arrays for temporary by size)

	var arrayCacheF32 = [];
	var arrayCacheI32 = [];

	// Float32Array caches used for uploading Matrix uniforms

	var mat4array = new Float32Array( 16 );
	var mat3array = new Float32Array( 9 );
	var mat2array = new Float32Array( 4 );

	// Flattening for arrays of vectors and matrices

	function flatten( array, nBlocks, blockSize ) {

		var firstElem = array[ 0 ];

		if ( firstElem <= 0 || firstElem > 0 ) return array;
		// unoptimized: ! isNaN( firstElem )
		// see http://jacksondunstan.com/articles/983

		var n = nBlocks * blockSize,
			r = arrayCacheF32[ n ];

		if ( r === undefined ) {

			r = new Float32Array( n );
			arrayCacheF32[ n ] = r;

		}

		if ( nBlocks !== 0 ) {

			firstElem.toArray( r, 0 );

			for ( var i = 1, offset = 0; i !== nBlocks; ++ i ) {

				offset += blockSize;
				array[ i ].toArray( r, offset );

			}

		}

		return r;

	}

	function arraysEqual( a, b ) {

		if ( a.length !== b.length ) return false;

		for ( var i = 0, l = a.length; i < l; i ++ ) {

			if ( a[ i ] !== b[ i ] ) return false;

		}

		return true;

	}

	function copyArray( a, b ) {

		for ( var i = 0, l = b.length; i < l; i ++ ) {

			a[ i ] = b[ i ];

		}

	}

	// Texture unit allocation

	function allocTexUnits( renderer, n ) {

		var r = arrayCacheI32[ n ];

		if ( r === undefined ) {

			r = new Int32Array( n );
			arrayCacheI32[ n ] = r;

		}

		for ( var i = 0; i !== n; ++ i )
			r[ i ] = renderer.allocTextureUnit();

		return r;

	}

	// --- Setters ---

	// Note: Defining these methods externally, because they come in a bunch
	// and this way their names minify.

	// Single scalar

	function setValue1f( gl, v ) {

		var cache = this.cache;

		if ( cache[ 0 ] === v ) return;

		gl.uniform1f( this.addr, v );

		cache[ 0 ] = v;

	}

	function setValue1i( gl, v ) {

		var cache = this.cache;

		if ( cache[ 0 ] === v ) return;

		gl.uniform1i( this.addr, v );

		cache[ 0 ] = v;

	}

	// Single float vector (from flat array or THREE.VectorN)

	function setValue2fv( gl, v ) {

		var cache = this.cache;

		if ( v.x !== undefined ) {

			if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y ) {

				gl.uniform2f( this.addr, v.x, v.y );

				cache[ 0 ] = v.x;
				cache[ 1 ] = v.y;

			}

		} else {

			if ( arraysEqual( cache, v ) ) return;

			gl.uniform2fv( this.addr, v );

			copyArray( cache, v );

		}

	}

	function setValue3fv( gl, v ) {

		var cache = this.cache;

		if ( v.x !== undefined ) {

			if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z ) {

				gl.uniform3f( this.addr, v.x, v.y, v.z );

				cache[ 0 ] = v.x;
				cache[ 1 ] = v.y;
				cache[ 2 ] = v.z;

			}

		} else if ( v.r !== undefined ) {

			if ( cache[ 0 ] !== v.r || cache[ 1 ] !== v.g || cache[ 2 ] !== v.b ) {

				gl.uniform3f( this.addr, v.r, v.g, v.b );

				cache[ 0 ] = v.r;
				cache[ 1 ] = v.g;
				cache[ 2 ] = v.b;

			}

		} else {

			if ( arraysEqual( cache, v ) ) return;

			gl.uniform3fv( this.addr, v );

			copyArray( cache, v );

		}

	}

	function setValue4fv( gl, v ) {

		var cache = this.cache;

		if ( v.x !== undefined ) {

			if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z || cache[ 3 ] !== v.w ) {

				gl.uniform4f( this.addr, v.x, v.y, v.z, v.w );

				cache[ 0 ] = v.x;
				cache[ 1 ] = v.y;
				cache[ 2 ] = v.z;
				cache[ 3 ] = v.w;

			}

		} else {

			if ( arraysEqual( cache, v ) ) return;

			gl.uniform4fv( this.addr, v );

			copyArray( cache, v );

		}

	}

	// Single matrix (from flat array or MatrixN)

	function setValue2fm( gl, v ) {

		var cache = this.cache;
		var elements = v.elements;

		if ( elements === undefined ) {

			if ( arraysEqual( cache, v ) ) return;

			gl.uniformMatrix2fv( this.addr, false, v );

			copyArray( cache, v );

		} else {

			if ( arraysEqual( cache, elements ) ) return;

			mat2array.set( elements );

			gl.uniformMatrix2fv( this.addr, false, mat2array );

			copyArray( cache, elements );

		}

	}

	function setValue3fm( gl, v ) {

		var cache = this.cache;
		var elements = v.elements;

		if ( elements === undefined ) {

			if ( arraysEqual( cache, v ) ) return;

			gl.uniformMatrix3fv( this.addr, false, v );

			copyArray( cache, v );

		} else {

			if ( arraysEqual( cache, elements ) ) return;

			mat3array.set( elements );

			gl.uniformMatrix3fv( this.addr, false, mat3array );

			copyArray( cache, elements );

		}

	}

	function setValue4fm( gl, v ) {

		var cache = this.cache;
		var elements = v.elements;

		if ( elements === undefined ) {

			if ( arraysEqual( cache, v ) ) return;

			gl.uniformMatrix4fv( this.addr, false, v );

			copyArray( cache, v );

		} else {

			if ( arraysEqual( cache, elements ) ) return;

			mat4array.set( elements );

			gl.uniformMatrix4fv( this.addr, false, mat4array );

			copyArray( cache, elements );

		}

	}

	// Single texture (2D / Cube)

	function setValueT1( gl, v, renderer ) {

		var cache = this.cache;
		var unit = renderer.allocTextureUnit();

		if ( cache[ 0 ] !== unit ) {

			gl.uniform1i( this.addr, unit );
			cache[ 0 ] = unit;

		}

		renderer.setTexture2D( v || emptyTexture, unit );

	}

	function setValueT6( gl, v, renderer ) {

		var cache = this.cache;
		var unit = renderer.allocTextureUnit();

		if ( cache[ 0 ] !== unit ) {

			gl.uniform1i( this.addr, unit );
			cache[ 0 ] = unit;

		}

		renderer.setTextureCube( v || emptyCubeTexture, unit );

	}

	// Integer / Boolean vectors or arrays thereof (always flat arrays)

	function setValue2iv( gl, v ) {

		var cache = this.cache;

		if ( arraysEqual( cache, v ) ) return;

		gl.uniform2iv( this.addr, v );

		copyArray( cache, v );

	}

	function setValue3iv( gl, v ) {

		var cache = this.cache;

		if ( arraysEqual( cache, v ) ) return;

		gl.uniform3iv( this.addr, v );

		copyArray( cache, v );

	}

	function setValue4iv( gl, v ) {

		var cache = this.cache;

		if ( arraysEqual( cache, v ) ) return;

		gl.uniform4iv( this.addr, v );

		copyArray( cache, v );

	}

	// Helper to pick the right setter for the singular case

	function getSingularSetter( type ) {

		switch ( type ) {

			case 0x1406: return setValue1f; // FLOAT
			case 0x8b50: return setValue2fv; // _VEC2
			case 0x8b51: return setValue3fv; // _VEC3
			case 0x8b52: return setValue4fv; // _VEC4

			case 0x8b5a: return setValue2fm; // _MAT2
			case 0x8b5b: return setValue3fm; // _MAT3
			case 0x8b5c: return setValue4fm; // _MAT4

			case 0x8b5e: case 0x8d66: return setValueT1; // SAMPLER_2D, SAMPLER_EXTERNAL_OES
			case 0x8b60: return setValueT6; // SAMPLER_CUBE

			case 0x1404: case 0x8b56: return setValue1i; // INT, BOOL
			case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2
			case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3
			case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4

		}

	}

	// Array of scalars

	function setValue1fv( gl, v ) {

		var cache = this.cache;

		if ( arraysEqual( cache, v ) ) return;

		gl.uniform1fv( this.addr, v );

		copyArray( cache, v );

	}
	function setValue1iv( gl, v ) {

		var cache = this.cache;

		if ( arraysEqual( cache, v ) ) return;

		gl.uniform1iv( this.addr, v );

		copyArray( cache, v );

	}

	// Array of vectors (flat or from THREE classes)

	function setValueV2a( gl, v ) {

		var cache = this.cache;
		var data = flatten( v, this.size, 2 );

		if ( arraysEqual( cache, data ) ) return;

		gl.uniform2fv( this.addr, data );

		this.updateCache( data );

	}

	function setValueV3a( gl, v ) {

		var cache = this.cache;
		var data = flatten( v, this.size, 3 );

		if ( arraysEqual( cache, data ) ) return;

		gl.uniform3fv( this.addr, data );

		this.updateCache( data );

	}

	function setValueV4a( gl, v ) {

		var cache = this.cache;
		var data = flatten( v, this.size, 4 );

		if ( arraysEqual( cache, data ) ) return;

		gl.uniform4fv( this.addr, data );

		this.updateCache( data );

	}

	// Array of matrices (flat or from THREE clases)

	function setValueM2a( gl, v ) {

		var cache = this.cache;
		var data = flatten( v, this.size, 4 );

		if ( arraysEqual( cache, data ) ) return;

		gl.uniformMatrix2fv( this.addr, false, data );

		this.updateCache( data );

	}

	function setValueM3a( gl, v ) {

		var cache = this.cache;
		var data = flatten( v, this.size, 9 );

		if ( arraysEqual( cache, data ) ) return;

		gl.uniformMatrix3fv( this.addr, false, data );

		this.updateCache( data );

	}

	function setValueM4a( gl, v ) {

		var cache = this.cache;
		var data = flatten( v, this.size, 16 );

		if ( arraysEqual( cache, data ) ) return;

		gl.uniformMatrix4fv( this.addr, false, data );

		this.updateCache( data );

	}

	// Array of textures (2D / Cube)

	function setValueT1a( gl, v, renderer ) {

		var cache = this.cache;
		var n = v.length;

		var units = allocTexUnits( renderer, n );

		if ( arraysEqual( cache, units ) === false ) {

			gl.uniform1iv( this.addr, units );
			copyArray( cache, units );

		}

		for ( var i = 0; i !== n; ++ i ) {

			renderer.setTexture2D( v[ i ] || emptyTexture, units[ i ] );

		}

	}

	function setValueT6a( gl, v, renderer ) {

		var cache = this.cache;
		var n = v.length;

		var units = allocTexUnits( renderer, n );

		if ( arraysEqual( cache, units ) === false ) {

			gl.uniform1iv( this.addr, units );
			copyArray( cache, units );

		}

		for ( var i = 0; i !== n; ++ i ) {

			renderer.setTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );

		}

	}

	// Helper to pick the right setter for a pure (bottom-level) array

	function getPureArraySetter( type ) {

		switch ( type ) {

			case 0x1406: return setValue1fv; // FLOAT
			case 0x8b50: return setValueV2a; // _VEC2
			case 0x8b51: return setValueV3a; // _VEC3
			case 0x8b52: return setValueV4a; // _VEC4

			case 0x8b5a: return setValueM2a; // _MAT2
			case 0x8b5b: return setValueM3a; // _MAT3
			case 0x8b5c: return setValueM4a; // _MAT4

			case 0x8b5e: return setValueT1a; // SAMPLER_2D
			case 0x8b60: return setValueT6a; // SAMPLER_CUBE

			case 0x1404: case 0x8b56: return setValue1iv; // INT, BOOL
			case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2
			case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3
			case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4

		}

	}

	// --- Uniform Classes ---

	function SingleUniform( id, activeInfo, addr ) {

		this.id = id;
		this.addr = addr;
		this.cache = [];
		this.setValue = getSingularSetter( activeInfo.type );

		// this.path = activeInfo.name; // DEBUG

	}

	function PureArrayUniform( id, activeInfo, addr ) {

		this.id = id;
		this.addr = addr;
		this.cache = [];
		this.size = activeInfo.size;
		this.setValue = getPureArraySetter( activeInfo.type );

		// this.path = activeInfo.name; // DEBUG

	}

	PureArrayUniform.prototype.updateCache = function ( data ) {

		var cache = this.cache;

		if ( data instanceof Float32Array && cache.length !== data.length ) {

			this.cache = new Float32Array( data.length );

		}

		copyArray( cache, data );

	};

	function StructuredUniform( id ) {

		this.id = id;

		UniformContainer.call( this ); // mix-in

	}

	StructuredUniform.prototype.setValue = function ( gl, value, renderer ) {

		var seq = this.seq;

		for ( var i = 0, n = seq.length; i !== n; ++ i ) {

			var u = seq[ i ];
			u.setValue( gl, value[ u.id ], renderer );

		}

	};

	// --- Top-level ---

	// Parser - builds up the property tree from the path strings

	var RePathPart = /([\w\d_]+)(\])?(\[|\.)?/g;

	// extracts
	// 	- the identifier (member name or array index)
	//  - followed by an optional right bracket (found when array index)
	//  - followed by an optional left bracket or dot (type of subscript)
	//
	// Note: These portions can be read in a non-overlapping fashion and
	// allow straightforward parsing of the hierarchy that WebGL encodes
	// in the uniform names.

	function addUniform( container, uniformObject ) {

		container.seq.push( uniformObject );
		container.map[ uniformObject.id ] = uniformObject;

	}

	function parseUniform( activeInfo, addr, container ) {

		var path = activeInfo.name,
			pathLength = path.length;

		// reset RegExp object, because of the early exit of a previous run
		RePathPart.lastIndex = 0;

		while ( true ) {

			var match = RePathPart.exec( path ),
				matchEnd = RePathPart.lastIndex,

				id = match[ 1 ],
				idIsIndex = match[ 2 ] === ']',
				subscript = match[ 3 ];

			if ( idIsIndex ) id = id | 0; // convert to integer

			if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {

				// bare name or "pure" bottom-level array "[0]" suffix

				addUniform( container, subscript === undefined ?
					new SingleUniform( id, activeInfo, addr ) :
					new PureArrayUniform( id, activeInfo, addr ) );

				break;

			} else {

				// step into inner node / create it in case it doesn't exist

				var map = container.map, next = map[ id ];

				if ( next === undefined ) {

					next = new StructuredUniform( id );
					addUniform( container, next );

				}

				container = next;

			}

		}

	}

	// Root Container

	function WebGLUniforms( gl, program, renderer ) {

		UniformContainer.call( this );

		this.renderer = renderer;

		var n = gl.getProgramParameter( program, gl.ACTIVE_UNIFORMS );

		for ( var i = 0; i < n; ++ i ) {

			var info = gl.getActiveUniform( program, i ),
				addr = gl.getUniformLocation( program, info.name );

			parseUniform( info, addr, this );

		}

	}

	WebGLUniforms.prototype.setValue = function ( gl, name, value ) {

		var u = this.map[ name ];

		if ( u !== undefined ) u.setValue( gl, value, this.renderer );

	};

	WebGLUniforms.prototype.setOptional = function ( gl, object, name ) {

		var v = object[ name ];

		if ( v !== undefined ) this.setValue( gl, name, v );

	};


	// Static interface

	WebGLUniforms.upload = function ( gl, seq, values, renderer ) {

		for ( var i = 0, n = seq.length; i !== n; ++ i ) {

			var u = seq[ i ],
				v = values[ u.id ];

			if ( v.needsUpdate !== false ) {

				// note: always updating when .needsUpdate is undefined
				u.setValue( gl, v.value, renderer );

			}

		}

	};

	WebGLUniforms.seqWithValue = function ( seq, values ) {

		var r = [];

		for ( var i = 0, n = seq.length; i !== n; ++ i ) {

			var u = seq[ i ];
			if ( u.id in values ) r.push( u );

		}

		return r;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function addLineNumbers( string ) {

		var lines = string.split( '\n' );

		for ( var i = 0; i < lines.length; i ++ ) {

			lines[ i ] = ( i + 1 ) + ': ' + lines[ i ];

		}

		return lines.join( '\n' );

	}

	function WebGLShader( gl, type, string ) {

		var shader = gl.createShader( type );

		gl.shaderSource( shader, string );
		gl.compileShader( shader );

		if ( gl.getShaderParameter( shader, gl.COMPILE_STATUS ) === false ) {

			console.error( 'THREE.WebGLShader: Shader couldn\'t compile.' );

		}

		if ( gl.getShaderInfoLog( shader ) !== '' ) {

			console.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === gl.VERTEX_SHADER ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );

		}

		// --enable-privileged-webgl-extension
		// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );

		return shader;

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	var programIdCount = 0;

	function getEncodingComponents( encoding ) {

		switch ( encoding ) {

			case LinearEncoding:
				return [ 'Linear', '( value )' ];
			case sRGBEncoding:
				return [ 'sRGB', '( value )' ];
			case RGBEEncoding:
				return [ 'RGBE', '( value )' ];
			case RGBM7Encoding:
				return [ 'RGBM', '( value, 7.0 )' ];
			case RGBM16Encoding:
				return [ 'RGBM', '( value, 16.0 )' ];
			case RGBDEncoding:
				return [ 'RGBD', '( value, 256.0 )' ];
			case GammaEncoding:
				return [ 'Gamma', '( value, float( GAMMA_FACTOR ) )' ];
			default:
				throw new Error( 'unsupported encoding: ' + encoding );

		}

	}

	function getTexelDecodingFunction( functionName, encoding ) {

		var components = getEncodingComponents( encoding );
		return 'vec4 ' + functionName + '( vec4 value ) { return ' + components[ 0 ] + 'ToLinear' + components[ 1 ] + '; }';

	}

	function getTexelEncodingFunction( functionName, encoding ) {

		var components = getEncodingComponents( encoding );
		return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }';

	}

	function getToneMappingFunction( functionName, toneMapping ) {

		var toneMappingName;

		switch ( toneMapping ) {

			case LinearToneMapping:
				toneMappingName = 'Linear';
				break;

			case ReinhardToneMapping:
				toneMappingName = 'Reinhard';
				break;

			case Uncharted2ToneMapping:
				toneMappingName = 'Uncharted2';
				break;

			case CineonToneMapping:
				toneMappingName = 'OptimizedCineon';
				break;

			default:
				throw new Error( 'unsupported toneMapping: ' + toneMapping );

		}

		return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';

	}

	function generateExtensions( extensions, parameters, rendererExtensions ) {

		extensions = extensions || {};

		var chunks = [
			( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || ( parameters.normalMap && ! parameters.objectSpaceNormalMap ) || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',
			( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',
			( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',
			( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : ''
		];

		return chunks.filter( filterEmptyLine ).join( '\n' );

	}

	function generateDefines( defines ) {

		var chunks = [];

		for ( var name in defines ) {

			var value = defines[ name ];

			if ( value === false ) continue;

			chunks.push( '#define ' + name + ' ' + value );

		}

		return chunks.join( '\n' );

	}

	function fetchAttributeLocations( gl, program ) {

		var attributes = {};

		var n = gl.getProgramParameter( program, gl.ACTIVE_ATTRIBUTES );

		for ( var i = 0; i < n; i ++ ) {

			var info = gl.getActiveAttrib( program, i );
			var name = info.name;

			// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );

			attributes[ name ] = gl.getAttribLocation( program, name );

		}

		return attributes;

	}

	function filterEmptyLine( string ) {

		return string !== '';

	}

	function replaceLightNums( string, parameters ) {

		return string
			.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )
			.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )
			.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )
			.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )
			.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights );

	}

	function replaceClippingPlaneNums( string, parameters ) {

		return string
			.replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes )
			.replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) );

	}

	function parseIncludes( string ) {

		var pattern = /^[ \t]*#include +<([\w\d./]+)>/gm;

		function replace( match, include ) {

			var replace = ShaderChunk[ include ];

			if ( replace === undefined ) {

				throw new Error( 'Can not resolve #include <' + include + '>' );

			}

			return parseIncludes( replace );

		}

		return string.replace( pattern, replace );

	}

	function unrollLoops( string ) {

		var pattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;

		function replace( match, start, end, snippet ) {

			var unroll = '';

			for ( var i = parseInt( start ); i < parseInt( end ); i ++ ) {

				unroll += snippet.replace( /\[ i \]/g, '[ ' + i + ' ]' );

			}

			return unroll;

		}

		return string.replace( pattern, replace );

	}

	function WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities ) {

		var gl = renderer.context;

		var defines = material.defines;

		var vertexShader = shader.vertexShader;
		var fragmentShader = shader.fragmentShader;

		var shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';

		if ( parameters.shadowMapType === PCFShadowMap ) {

			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';

		} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {

			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';

		}

		var envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
		var envMapModeDefine = 'ENVMAP_MODE_REFLECTION';
		var envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';

		if ( parameters.envMap ) {

			switch ( material.envMap.mapping ) {

				case CubeReflectionMapping:
				case CubeRefractionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
					break;

				case CubeUVReflectionMapping:
				case CubeUVRefractionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
					break;

				case EquirectangularReflectionMapping:
				case EquirectangularRefractionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';
					break;

				case SphericalReflectionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_SPHERE';
					break;

			}

			switch ( material.envMap.mapping ) {

				case CubeRefractionMapping:
				case EquirectangularRefractionMapping:
					envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
					break;

			}

			switch ( material.combine ) {

				case MultiplyOperation:
					envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
					break;

				case MixOperation:
					envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
					break;

				case AddOperation:
					envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
					break;

			}

		}

		var gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;

		// console.log( 'building new program ' );

		//

		var customExtensions = capabilities.isWebGL2 ? '' : generateExtensions( material.extensions, parameters, extensions );

		var customDefines = generateDefines( defines );

		//

		var program = gl.createProgram();

		var prefixVertex, prefixFragment;

		if ( material.isRawShaderMaterial ) {

			prefixVertex = [

				customDefines

			].filter( filterEmptyLine ).join( '\n' );

			if ( prefixVertex.length > 0 ) {

				prefixVertex += '\n';

			}

			prefixFragment = [

				customExtensions,
				customDefines

			].filter( filterEmptyLine ).join( '\n' );

			if ( prefixFragment.length > 0 ) {

				prefixFragment += '\n';

			}

		} else {

			prefixVertex = [

				'precision ' + parameters.precision + ' float;',
				'precision ' + parameters.precision + ' int;',

				'#define SHADER_NAME ' + shader.name,

				customDefines,

				parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',

				'#define GAMMA_FACTOR ' + gammaFactorDefine,

				'#define MAX_BONES ' + parameters.maxBones,
				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',

				parameters.map ? '#define USE_MAP' : '',
				parameters.envMap ? '#define USE_ENVMAP' : '',
				parameters.envMap ? '#define ' + envMapModeDefine : '',
				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
				parameters.aoMap ? '#define USE_AOMAP' : '',
				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
				parameters.normalMap ? '#define USE_NORMALMAP' : '',
				( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
				parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',
				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
				parameters.vertexColors ? '#define USE_COLOR' : '',

				parameters.flatShading ? '#define FLAT_SHADED' : '',

				parameters.skinning ? '#define USE_SKINNING' : '',
				parameters.useVertexTexture ? '#define BONE_TEXTURE' : '',

				parameters.morphTargets ? '#define USE_MORPHTARGETS' : '',
				parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',
				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
				parameters.flipSided ? '#define FLIP_SIDED' : '',

				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',

				parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',

				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
				parameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',

				'uniform mat4 modelMatrix;',
				'uniform mat4 modelViewMatrix;',
				'uniform mat4 projectionMatrix;',
				'uniform mat4 viewMatrix;',
				'uniform mat3 normalMatrix;',
				'uniform vec3 cameraPosition;',

				'attribute vec3 position;',
				'attribute vec3 normal;',
				'attribute vec2 uv;',

				'#ifdef USE_COLOR',

				'	attribute vec3 color;',

				'#endif',

				'#ifdef USE_MORPHTARGETS',

				'	attribute vec3 morphTarget0;',
				'	attribute vec3 morphTarget1;',
				'	attribute vec3 morphTarget2;',
				'	attribute vec3 morphTarget3;',

				'	#ifdef USE_MORPHNORMALS',

				'		attribute vec3 morphNormal0;',
				'		attribute vec3 morphNormal1;',
				'		attribute vec3 morphNormal2;',
				'		attribute vec3 morphNormal3;',

				'	#else',

				'		attribute vec3 morphTarget4;',
				'		attribute vec3 morphTarget5;',
				'		attribute vec3 morphTarget6;',
				'		attribute vec3 morphTarget7;',

				'	#endif',

				'#endif',

				'#ifdef USE_SKINNING',

				'	attribute vec4 skinIndex;',
				'	attribute vec4 skinWeight;',

				'#endif',

				'\n'

			].filter( filterEmptyLine ).join( '\n' );

			prefixFragment = [

				customExtensions,

				'precision ' + parameters.precision + ' float;',
				'precision ' + parameters.precision + ' int;',

				'#define SHADER_NAME ' + shader.name,

				customDefines,

				parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest + ( parameters.alphaTest % 1 ? '' : '.0' ) : '', // add '.0' if integer

				'#define GAMMA_FACTOR ' + gammaFactorDefine,

				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',

				parameters.map ? '#define USE_MAP' : '',
				parameters.envMap ? '#define USE_ENVMAP' : '',
				parameters.envMap ? '#define ' + envMapTypeDefine : '',
				parameters.envMap ? '#define ' + envMapModeDefine : '',
				parameters.envMap ? '#define ' + envMapBlendingDefine : '',
				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
				parameters.aoMap ? '#define USE_AOMAP' : '',
				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
				parameters.normalMap ? '#define USE_NORMALMAP' : '',
				( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
				parameters.vertexColors ? '#define USE_COLOR' : '',

				parameters.gradientMap ? '#define USE_GRADIENTMAP' : '',

				parameters.flatShading ? '#define FLAT_SHADED' : '',

				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
				parameters.flipSided ? '#define FLIP_SIDED' : '',

				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',

				parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '',

				parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '',

				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
				parameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',

				parameters.envMap && ( capabilities.isWebGL2 || extensions.get( 'EXT_shader_texture_lod' ) ) ? '#define TEXTURE_LOD_EXT' : '',

				'uniform mat4 viewMatrix;',
				'uniform vec3 cameraPosition;',

				( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '',
				( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below
				( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '',

				parameters.dithering ? '#define DITHERING' : '',

				( parameters.outputEncoding || parameters.mapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ? ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below
				parameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '',
				parameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '',
				parameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '',
				parameters.outputEncoding ? getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ) : '',

				parameters.depthPacking ? '#define DEPTH_PACKING ' + material.depthPacking : '',

				'\n'

			].filter( filterEmptyLine ).join( '\n' );

		}

		vertexShader = parseIncludes( vertexShader );
		vertexShader = replaceLightNums( vertexShader, parameters );
		vertexShader = replaceClippingPlaneNums( vertexShader, parameters );

		fragmentShader = parseIncludes( fragmentShader );
		fragmentShader = replaceLightNums( fragmentShader, parameters );
		fragmentShader = replaceClippingPlaneNums( fragmentShader, parameters );

		vertexShader = unrollLoops( vertexShader );
		fragmentShader = unrollLoops( fragmentShader );

		if ( capabilities.isWebGL2 && ! material.isRawShaderMaterial ) {

			var isGLSL3ShaderMaterial = false;

			var versionRegex = /^\s*#version\s+300\s+es\s*\n/;

			if ( material.isShaderMaterial &&
				vertexShader.match( versionRegex ) !== null &&
				fragmentShader.match( versionRegex ) !== null ) {

				isGLSL3ShaderMaterial = true;

				vertexShader = vertexShader.replace( versionRegex, '' );
				fragmentShader = fragmentShader.replace( versionRegex, '' );

			}

			// GLSL 3.0 conversion
			prefixVertex = [
				'#version 300 es\n',
				'#define attribute in',
				'#define varying out',
				'#define texture2D texture'
			].join( '\n' ) + '\n' + prefixVertex;

			prefixFragment = [
				'#version 300 es\n',
				'#define varying in',
				isGLSL3ShaderMaterial ? '' : 'out highp vec4 pc_fragColor;',
				isGLSL3ShaderMaterial ? '' : '#define gl_FragColor pc_fragColor',
				'#define gl_FragDepthEXT gl_FragDepth',
				'#define texture2D texture',
				'#define textureCube texture',
				'#define texture2DProj textureProj',
				'#define texture2DLodEXT textureLod',
				'#define texture2DProjLodEXT textureProjLod',
				'#define textureCubeLodEXT textureLod',
				'#define texture2DGradEXT textureGrad',
				'#define texture2DProjGradEXT textureProjGrad',
				'#define textureCubeGradEXT textureGrad'
			].join( '\n' ) + '\n' + prefixFragment;

		}

		var vertexGlsl = prefixVertex + vertexShader;
		var fragmentGlsl = prefixFragment + fragmentShader;

		// console.log( '*VERTEX*', vertexGlsl );
		// console.log( '*FRAGMENT*', fragmentGlsl );

		var glVertexShader = WebGLShader( gl, gl.VERTEX_SHADER, vertexGlsl );
		var glFragmentShader = WebGLShader( gl, gl.FRAGMENT_SHADER, fragmentGlsl );

		gl.attachShader( program, glVertexShader );
		gl.attachShader( program, glFragmentShader );

		// Force a particular attribute to index 0.

		if ( material.index0AttributeName !== undefined ) {

			gl.bindAttribLocation( program, 0, material.index0AttributeName );

		} else if ( parameters.morphTargets === true ) {

			// programs with morphTargets displace position out of attribute 0
			gl.bindAttribLocation( program, 0, 'position' );

		}

		gl.linkProgram( program );

		var programLog = gl.getProgramInfoLog( program ).trim();
		var vertexLog = gl.getShaderInfoLog( glVertexShader ).trim();
		var fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim();

		var runnable = true;
		var haveDiagnostics = true;

		// console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) );
		// console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) );

		if ( gl.getProgramParameter( program, gl.LINK_STATUS ) === false ) {

			runnable = false;

			console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.VALIDATE_STATUS', gl.getProgramParameter( program, gl.VALIDATE_STATUS ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );

		} else if ( programLog !== '' ) {

			console.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );

		} else if ( vertexLog === '' || fragmentLog === '' ) {

			haveDiagnostics = false;

		}

		if ( haveDiagnostics ) {

			this.diagnostics = {

				runnable: runnable,
				material: material,

				programLog: programLog,

				vertexShader: {

					log: vertexLog,
					prefix: prefixVertex

				},

				fragmentShader: {

					log: fragmentLog,
					prefix: prefixFragment

				}

			};

		}

		// clean up

		gl.deleteShader( glVertexShader );
		gl.deleteShader( glFragmentShader );

		// set up caching for uniform locations

		var cachedUniforms;

		this.getUniforms = function () {

			if ( cachedUniforms === undefined ) {

				cachedUniforms = new WebGLUniforms( gl, program, renderer );

			}

			return cachedUniforms;

		};

		// set up caching for attribute locations

		var cachedAttributes;

		this.getAttributes = function () {

			if ( cachedAttributes === undefined ) {

				cachedAttributes = fetchAttributeLocations( gl, program );

			}

			return cachedAttributes;

		};

		// free resource

		this.destroy = function () {

			gl.deleteProgram( program );
			this.program = undefined;

		};

		// DEPRECATED

		Object.defineProperties( this, {

			uniforms: {
				get: function () {

					console.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );
					return this.getUniforms();

				}
			},

			attributes: {
				get: function () {

					console.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );
					return this.getAttributes();

				}
			}

		} );


		//

		this.name = shader.name;
		this.id = programIdCount ++;
		this.code = code;
		this.usedTimes = 1;
		this.program = program;
		this.vertexShader = glVertexShader;
		this.fragmentShader = glFragmentShader;

		return this;

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLPrograms( renderer, extensions, capabilities ) {

		var programs = [];

		var shaderIDs = {
			MeshDepthMaterial: 'depth',
			MeshDistanceMaterial: 'distanceRGBA',
			MeshNormalMaterial: 'normal',
			MeshBasicMaterial: 'basic',
			MeshLambertMaterial: 'lambert',
			MeshPhongMaterial: 'phong',
			MeshToonMaterial: 'phong',
			MeshStandardMaterial: 'physical',
			MeshPhysicalMaterial: 'physical',
			LineBasicMaterial: 'basic',
			LineDashedMaterial: 'dashed',
			PointsMaterial: 'points',
			ShadowMaterial: 'shadow',
			SpriteMaterial: 'sprite'
		};

		var parameterNames = [
			"precision", "supportsVertexTextures", "map", "mapEncoding", "envMap", "envMapMode", "envMapEncoding",
			"lightMap", "aoMap", "emissiveMap", "emissiveMapEncoding", "bumpMap", "normalMap", "objectSpaceNormalMap", "displacementMap", "specularMap",
			"roughnessMap", "metalnessMap", "gradientMap",
			"alphaMap", "combine", "vertexColors", "fog", "useFog", "fogExp",
			"flatShading", "sizeAttenuation", "logarithmicDepthBuffer", "skinning",
			"maxBones", "useVertexTexture", "morphTargets", "morphNormals",
			"maxMorphTargets", "maxMorphNormals", "premultipliedAlpha",
			"numDirLights", "numPointLights", "numSpotLights", "numHemiLights", "numRectAreaLights",
			"shadowMapEnabled", "shadowMapType", "toneMapping", 'physicallyCorrectLights',
			"alphaTest", "doubleSided", "flipSided", "numClippingPlanes", "numClipIntersection", "depthPacking", "dithering"
		];


		function allocateBones( object ) {

			var skeleton = object.skeleton;
			var bones = skeleton.bones;

			if ( capabilities.floatVertexTextures ) {

				return 1024;

			} else {

				// default for when object is not specified
				// ( for example when prebuilding shader to be used with multiple objects )
				//
				//  - leave some extra space for other uniforms
				//  - limit here is ANGLE's 254 max uniform vectors
				//    (up to 54 should be safe)

				var nVertexUniforms = capabilities.maxVertexUniforms;
				var nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );

				var maxBones = Math.min( nVertexMatrices, bones.length );

				if ( maxBones < bones.length ) {

					console.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' );
					return 0;

				}

				return maxBones;

			}

		}

		function getTextureEncodingFromMap( map, gammaOverrideLinear ) {

			var encoding;

			if ( ! map ) {

				encoding = LinearEncoding;

			} else if ( map.isTexture ) {

				encoding = map.encoding;

			} else if ( map.isWebGLRenderTarget ) {

				console.warn( "THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead." );
				encoding = map.texture.encoding;

			}

			// add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point.
			if ( encoding === LinearEncoding && gammaOverrideLinear ) {

				encoding = GammaEncoding;

			}

			return encoding;

		}

		this.getParameters = function ( material, lights, shadows, fog, nClipPlanes, nClipIntersection, object ) {

			var shaderID = shaderIDs[ material.type ];

			// heuristics to create shader parameters according to lights in the scene
			// (not to blow over maxLights budget)

			var maxBones = object.isSkinnedMesh ? allocateBones( object ) : 0;
			var precision = capabilities.precision;

			if ( material.precision !== null ) {

				precision = capabilities.getMaxPrecision( material.precision );

				if ( precision !== material.precision ) {

					console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );

				}

			}

			var currentRenderTarget = renderer.getRenderTarget();

			var parameters = {

				shaderID: shaderID,

				precision: precision,
				supportsVertexTextures: capabilities.vertexTextures,
				outputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ),
				map: !! material.map,
				mapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ),
				envMap: !! material.envMap,
				envMapMode: material.envMap && material.envMap.mapping,
				envMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ),
				envMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ),
				lightMap: !! material.lightMap,
				aoMap: !! material.aoMap,
				emissiveMap: !! material.emissiveMap,
				emissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ),
				bumpMap: !! material.bumpMap,
				normalMap: !! material.normalMap,
				objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,
				displacementMap: !! material.displacementMap,
				roughnessMap: !! material.roughnessMap,
				metalnessMap: !! material.metalnessMap,
				specularMap: !! material.specularMap,
				alphaMap: !! material.alphaMap,

				gradientMap: !! material.gradientMap,

				combine: material.combine,

				vertexColors: material.vertexColors,

				fog: !! fog,
				useFog: material.fog,
				fogExp: ( fog && fog.isFogExp2 ),

				flatShading: material.flatShading,

				sizeAttenuation: material.sizeAttenuation,
				logarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,

				skinning: material.skinning && maxBones > 0,
				maxBones: maxBones,
				useVertexTexture: capabilities.floatVertexTextures,

				morphTargets: material.morphTargets,
				morphNormals: material.morphNormals,
				maxMorphTargets: renderer.maxMorphTargets,
				maxMorphNormals: renderer.maxMorphNormals,

				numDirLights: lights.directional.length,
				numPointLights: lights.point.length,
				numSpotLights: lights.spot.length,
				numRectAreaLights: lights.rectArea.length,
				numHemiLights: lights.hemi.length,

				numClippingPlanes: nClipPlanes,
				numClipIntersection: nClipIntersection,

				dithering: material.dithering,

				shadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && shadows.length > 0,
				shadowMapType: renderer.shadowMap.type,

				toneMapping: renderer.toneMapping,
				physicallyCorrectLights: renderer.physicallyCorrectLights,

				premultipliedAlpha: material.premultipliedAlpha,

				alphaTest: material.alphaTest,
				doubleSided: material.side === DoubleSide,
				flipSided: material.side === BackSide,

				depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false

			};

			return parameters;

		};

		this.getProgramCode = function ( material, parameters ) {

			var array = [];

			if ( parameters.shaderID ) {

				array.push( parameters.shaderID );

			} else {

				array.push( material.fragmentShader );
				array.push( material.vertexShader );

			}

			if ( material.defines !== undefined ) {

				for ( var name in material.defines ) {

					array.push( name );
					array.push( material.defines[ name ] );

				}

			}

			for ( var i = 0; i < parameterNames.length; i ++ ) {

				array.push( parameters[ parameterNames[ i ] ] );

			}

			array.push( material.onBeforeCompile.toString() );

			array.push( renderer.gammaOutput );

			return array.join();

		};

		this.acquireProgram = function ( material, shader, parameters, code ) {

			var program;

			// Check if code has been already compiled
			for ( var p = 0, pl = programs.length; p < pl; p ++ ) {

				var programInfo = programs[ p ];

				if ( programInfo.code === code ) {

					program = programInfo;
					++ program.usedTimes;

					break;

				}

			}

			if ( program === undefined ) {

				program = new WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities );
				programs.push( program );

			}

			return program;

		};

		this.releaseProgram = function ( program ) {

			if ( -- program.usedTimes === 0 ) {

				// Remove from unordered set
				var i = programs.indexOf( program );
				programs[ i ] = programs[ programs.length - 1 ];
				programs.pop();

				// Free WebGL resources
				program.destroy();

			}

		};

		// Exposed for resource monitoring & error feedback via renderer.info:
		this.programs = programs;

	}

	/**
	 * @author fordacious / fordacious.github.io
	 */

	function WebGLProperties() {

		var properties = new WeakMap();

		function get( object ) {

			var map = properties.get( object );

			if ( map === undefined ) {

				map = {};
				properties.set( object, map );

			}

			return map;

		}

		function remove( object ) {

			properties.delete( object );

		}

		function update( object, key, value ) {

			properties.get( object )[ key ] = value;

		}

		function dispose() {

			properties = new WeakMap();

		}

		return {
			get: get,
			remove: remove,
			update: update,
			dispose: dispose
		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function painterSortStable( a, b ) {

		if ( a.renderOrder !== b.renderOrder ) {

			return a.renderOrder - b.renderOrder;

		} else if ( a.program && b.program && a.program !== b.program ) {

			return a.program.id - b.program.id;

		} else if ( a.material.id !== b.material.id ) {

			return a.material.id - b.material.id;

		} else if ( a.z !== b.z ) {

			return a.z - b.z;

		} else {

			return a.id - b.id;

		}

	}

	function reversePainterSortStable( a, b ) {

		if ( a.renderOrder !== b.renderOrder ) {

			return a.renderOrder - b.renderOrder;

		} if ( a.z !== b.z ) {

			return b.z - a.z;

		} else {

			return a.id - b.id;

		}

	}


	function WebGLRenderList() {

		var renderItems = [];
		var renderItemsIndex = 0;

		var opaque = [];
		var transparent = [];

		function init() {

			renderItemsIndex = 0;

			opaque.length = 0;
			transparent.length = 0;

		}

		function push( object, geometry, material, z, group ) {

			var renderItem = renderItems[ renderItemsIndex ];

			if ( renderItem === undefined ) {

				renderItem = {
					id: object.id,
					object: object,
					geometry: geometry,
					material: material,
					program: material.program,
					renderOrder: object.renderOrder,
					z: z,
					group: group
				};

				renderItems[ renderItemsIndex ] = renderItem;

			} else {

				renderItem.id = object.id;
				renderItem.object = object;
				renderItem.geometry = geometry;
				renderItem.material = material;
				renderItem.program = material.program;
				renderItem.renderOrder = object.renderOrder;
				renderItem.z = z;
				renderItem.group = group;

			}


			( material.transparent === true ? transparent : opaque ).push( renderItem );

			renderItemsIndex ++;

		}

		function sort() {

			if ( opaque.length > 1 ) opaque.sort( painterSortStable );
			if ( transparent.length > 1 ) transparent.sort( reversePainterSortStable );

		}

		return {
			opaque: opaque,
			transparent: transparent,

			init: init,
			push: push,

			sort: sort
		};

	}

	function WebGLRenderLists() {

		var lists = {};

		function get( scene, camera ) {

			var hash = scene.id + ',' + camera.id;
			var list = lists[ hash ];

			if ( list === undefined ) {

				// console.log( 'THREE.WebGLRenderLists:', hash );

				list = new WebGLRenderList();
				lists[ hash ] = list;

			}

			return list;

		}

		function dispose() {

			lists = {};

		}

		return {
			get: get,
			dispose: dispose
		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function UniformsCache() {

		var lights = {};

		return {

			get: function ( light ) {

				if ( lights[ light.id ] !== undefined ) {

					return lights[ light.id ];

				}

				var uniforms;

				switch ( light.type ) {

					case 'DirectionalLight':
						uniforms = {
							direction: new Vector3(),
							color: new Color(),

							shadow: false,
							shadowBias: 0,
							shadowRadius: 1,
							shadowMapSize: new Vector2()
						};
						break;

					case 'SpotLight':
						uniforms = {
							position: new Vector3(),
							direction: new Vector3(),
							color: new Color(),
							distance: 0,
							coneCos: 0,
							penumbraCos: 0,
							decay: 0,

							shadow: false,
							shadowBias: 0,
							shadowRadius: 1,
							shadowMapSize: new Vector2()
						};
						break;

					case 'PointLight':
						uniforms = {
							position: new Vector3(),
							color: new Color(),
							distance: 0,
							decay: 0,

							shadow: false,
							shadowBias: 0,
							shadowRadius: 1,
							shadowMapSize: new Vector2(),
							shadowCameraNear: 1,
							shadowCameraFar: 1000
						};
						break;

					case 'HemisphereLight':
						uniforms = {
							direction: new Vector3(),
							skyColor: new Color(),
							groundColor: new Color()
						};
						break;

					case 'RectAreaLight':
						uniforms = {
							color: new Color(),
							position: new Vector3(),
							halfWidth: new Vector3(),
							halfHeight: new Vector3()
							// TODO (abelnation): set RectAreaLight shadow uniforms
						};
						break;

				}

				lights[ light.id ] = uniforms;

				return uniforms;

			}

		};

	}

	var count = 0;

	function WebGLLights() {

		var cache = new UniformsCache();

		var state = {

			id: count ++,

			hash: {
				stateID: - 1,
				directionalLength: - 1,
				pointLength: - 1,
				spotLength: - 1,
				rectAreaLength: - 1,
				hemiLength: - 1,
				shadowsLength: - 1
			},

			ambient: [ 0, 0, 0 ],
			directional: [],
			directionalShadowMap: [],
			directionalShadowMatrix: [],
			spot: [],
			spotShadowMap: [],
			spotShadowMatrix: [],
			rectArea: [],
			point: [],
			pointShadowMap: [],
			pointShadowMatrix: [],
			hemi: []

		};

		var vector3 = new Vector3();
		var matrix4 = new Matrix4();
		var matrix42 = new Matrix4();

		function setup( lights, shadows, camera ) {

			var r = 0, g = 0, b = 0;

			var directionalLength = 0;
			var pointLength = 0;
			var spotLength = 0;
			var rectAreaLength = 0;
			var hemiLength = 0;

			var viewMatrix = camera.matrixWorldInverse;

			for ( var i = 0, l = lights.length; i < l; i ++ ) {

				var light = lights[ i ];

				var color = light.color;
				var intensity = light.intensity;
				var distance = light.distance;

				var shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;

				if ( light.isAmbientLight ) {

					r += color.r * intensity;
					g += color.g * intensity;
					b += color.b * intensity;

				} else if ( light.isDirectionalLight ) {

					var uniforms = cache.get( light );

					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
					vector3.setFromMatrixPosition( light.target.matrixWorld );
					uniforms.direction.sub( vector3 );
					uniforms.direction.transformDirection( viewMatrix );

					uniforms.shadow = light.castShadow;

					if ( light.castShadow ) {

						var shadow = light.shadow;

						uniforms.shadowBias = shadow.bias;
						uniforms.shadowRadius = shadow.radius;
						uniforms.shadowMapSize = shadow.mapSize;

					}

					state.directionalShadowMap[ directionalLength ] = shadowMap;
					state.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;
					state.directional[ directionalLength ] = uniforms;

					directionalLength ++;

				} else if ( light.isSpotLight ) {

					var uniforms = cache.get( light );

					uniforms.position.setFromMatrixPosition( light.matrixWorld );
					uniforms.position.applyMatrix4( viewMatrix );

					uniforms.color.copy( color ).multiplyScalar( intensity );
					uniforms.distance = distance;

					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
					vector3.setFromMatrixPosition( light.target.matrixWorld );
					uniforms.direction.sub( vector3 );
					uniforms.direction.transformDirection( viewMatrix );

					uniforms.coneCos = Math.cos( light.angle );
					uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );
					uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;

					uniforms.shadow = light.castShadow;

					if ( light.castShadow ) {

						var shadow = light.shadow;

						uniforms.shadowBias = shadow.bias;
						uniforms.shadowRadius = shadow.radius;
						uniforms.shadowMapSize = shadow.mapSize;

					}

					state.spotShadowMap[ spotLength ] = shadowMap;
					state.spotShadowMatrix[ spotLength ] = light.shadow.matrix;
					state.spot[ spotLength ] = uniforms;

					spotLength ++;

				} else if ( light.isRectAreaLight ) {

					var uniforms = cache.get( light );

					// (a) intensity is the total visible light emitted
					//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );

					// (b) intensity is the brightness of the light
					uniforms.color.copy( color ).multiplyScalar( intensity );

					uniforms.position.setFromMatrixPosition( light.matrixWorld );
					uniforms.position.applyMatrix4( viewMatrix );

					// extract local rotation of light to derive width/height half vectors
					matrix42.identity();
					matrix4.copy( light.matrixWorld );
					matrix4.premultiply( viewMatrix );
					matrix42.extractRotation( matrix4 );

					uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );
					uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );

					uniforms.halfWidth.applyMatrix4( matrix42 );
					uniforms.halfHeight.applyMatrix4( matrix42 );

					// TODO (abelnation): RectAreaLight distance?
					// uniforms.distance = distance;

					state.rectArea[ rectAreaLength ] = uniforms;

					rectAreaLength ++;

				} else if ( light.isPointLight ) {

					var uniforms = cache.get( light );

					uniforms.position.setFromMatrixPosition( light.matrixWorld );
					uniforms.position.applyMatrix4( viewMatrix );

					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
					uniforms.distance = light.distance;
					uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;

					uniforms.shadow = light.castShadow;

					if ( light.castShadow ) {

						var shadow = light.shadow;

						uniforms.shadowBias = shadow.bias;
						uniforms.shadowRadius = shadow.radius;
						uniforms.shadowMapSize = shadow.mapSize;
						uniforms.shadowCameraNear = shadow.camera.near;
						uniforms.shadowCameraFar = shadow.camera.far;

					}

					state.pointShadowMap[ pointLength ] = shadowMap;
					state.pointShadowMatrix[ pointLength ] = light.shadow.matrix;
					state.point[ pointLength ] = uniforms;

					pointLength ++;

				} else if ( light.isHemisphereLight ) {

					var uniforms = cache.get( light );

					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
					uniforms.direction.transformDirection( viewMatrix );
					uniforms.direction.normalize();

					uniforms.skyColor.copy( light.color ).multiplyScalar( intensity );
					uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );

					state.hemi[ hemiLength ] = uniforms;

					hemiLength ++;

				}

			}

			state.ambient[ 0 ] = r;
			state.ambient[ 1 ] = g;
			state.ambient[ 2 ] = b;

			state.directional.length = directionalLength;
			state.spot.length = spotLength;
			state.rectArea.length = rectAreaLength;
			state.point.length = pointLength;
			state.hemi.length = hemiLength;

			state.hash.stateID = state.id;
			state.hash.directionalLength = directionalLength;
			state.hash.pointLength = pointLength;
			state.hash.spotLength = spotLength;
			state.hash.rectAreaLength = rectAreaLength;
			state.hash.hemiLength = hemiLength;
			state.hash.shadowsLength = shadows.length;

		}

		return {
			setup: setup,
			state: state
		};

	}

	/**
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function WebGLRenderState() {

		var lights = new WebGLLights();

		var lightsArray = [];
		var shadowsArray = [];

		function init() {

			lightsArray.length = 0;
			shadowsArray.length = 0;

		}

		function pushLight( light ) {

			lightsArray.push( light );

		}

		function pushShadow( shadowLight ) {

			shadowsArray.push( shadowLight );

		}

		function setupLights( camera ) {

			lights.setup( lightsArray, shadowsArray, camera );

		}

		var state = {
			lightsArray: lightsArray,
			shadowsArray: shadowsArray,

			lights: lights
		};

		return {
			init: init,
			state: state,
			setupLights: setupLights,

			pushLight: pushLight,
			pushShadow: pushShadow
		};

	}

	function WebGLRenderStates() {

		var renderStates = {};

		function get( scene, camera ) {

			var renderState;

			if ( renderStates[ scene.id ] === undefined ) {

				renderState = new WebGLRenderState();
				renderStates[ scene.id ] = {};
				renderStates[ scene.id ][ camera.id ] = renderState;

			} else {

				if ( renderStates[ scene.id ][ camera.id ] === undefined ) {

					renderState = new WebGLRenderState();
					renderStates[ scene.id ][ camera.id ] = renderState;

				} else {

					renderState = renderStates[ scene.id ][ camera.id ];

				}

			}

			return renderState;

		}

		function dispose() {

			renderStates = {};

		}

		return {
			get: get,
			dispose: dispose
		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author bhouston / https://clara.io
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * parameters = {
	 *
	 *  opacity: <float>,
	 *
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  displacementMap: new THREE.Texture( <Image> ),
	 *  displacementScale: <float>,
	 *  displacementBias: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>
	 * }
	 */

	function MeshDepthMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshDepthMaterial';

		this.depthPacking = BasicDepthPacking;

		this.skinning = false;
		this.morphTargets = false;

		this.map = null;

		this.alphaMap = null;

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.wireframe = false;
		this.wireframeLinewidth = 1;

		this.fog = false;
		this.lights = false;

		this.setValues( parameters );

	}

	MeshDepthMaterial.prototype = Object.create( Material.prototype );
	MeshDepthMaterial.prototype.constructor = MeshDepthMaterial;

	MeshDepthMaterial.prototype.isMeshDepthMaterial = true;

	MeshDepthMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.depthPacking = source.depthPacking;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;

		this.map = source.map;

		this.alphaMap = source.alphaMap;

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;

		return this;

	};

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * parameters = {
	 *
	 *  referencePosition: <float>,
	 *  nearDistance: <float>,
	 *  farDistance: <float>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  displacementMap: new THREE.Texture( <Image> ),
	 *  displacementScale: <float>,
	 *  displacementBias: <float>
	 *
	 * }
	 */

	function MeshDistanceMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshDistanceMaterial';

		this.referencePosition = new Vector3();
		this.nearDistance = 1;
		this.farDistance = 1000;

		this.skinning = false;
		this.morphTargets = false;

		this.map = null;

		this.alphaMap = null;

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.fog = false;
		this.lights = false;

		this.setValues( parameters );

	}

	MeshDistanceMaterial.prototype = Object.create( Material.prototype );
	MeshDistanceMaterial.prototype.constructor = MeshDistanceMaterial;

	MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;

	MeshDistanceMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.referencePosition.copy( source.referencePosition );
		this.nearDistance = source.nearDistance;
		this.farDistance = source.farDistance;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;

		this.map = source.map;

		this.alphaMap = source.alphaMap;

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		return this;

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLShadowMap( _renderer, _objects, maxTextureSize ) {

		var _frustum = new Frustum(),
			_projScreenMatrix = new Matrix4(),

			_shadowMapSize = new Vector2(),
			_maxShadowMapSize = new Vector2( maxTextureSize, maxTextureSize ),

			_lookTarget = new Vector3(),
			_lightPositionWorld = new Vector3(),

			_MorphingFlag = 1,
			_SkinningFlag = 2,

			_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,

			_depthMaterials = new Array( _NumberOfMaterialVariants ),
			_distanceMaterials = new Array( _NumberOfMaterialVariants ),

			_materialCache = {};

		var shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide };

		var cubeDirections = [
			new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),
			new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )
		];

		var cubeUps = [
			new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),
			new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),	new Vector3( 0, 0, - 1 )
		];

		var cube2DViewPorts = [
			new Vector4(), new Vector4(), new Vector4(),
			new Vector4(), new Vector4(), new Vector4()
		];

		// init

		for ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {

			var useMorphing = ( i & _MorphingFlag ) !== 0;
			var useSkinning = ( i & _SkinningFlag ) !== 0;

			var depthMaterial = new MeshDepthMaterial( {

				depthPacking: RGBADepthPacking,

				morphTargets: useMorphing,
				skinning: useSkinning

			} );

			_depthMaterials[ i ] = depthMaterial;

			//

			var distanceMaterial = new MeshDistanceMaterial( {

				morphTargets: useMorphing,
				skinning: useSkinning

			} );

			_distanceMaterials[ i ] = distanceMaterial;

		}

		//

		var scope = this;

		this.enabled = false;

		this.autoUpdate = true;
		this.needsUpdate = false;

		this.type = PCFShadowMap;

		this.render = function ( lights, scene, camera ) {

			if ( scope.enabled === false ) return;
			if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;

			if ( lights.length === 0 ) return;

			// TODO Clean up (needed in case of contextlost)
			var _gl = _renderer.context;
			var _state = _renderer.state;

			// Set GL state for depth map.
			_state.disable( _gl.BLEND );
			_state.buffers.color.setClear( 1, 1, 1, 1 );
			_state.buffers.depth.setTest( true );
			_state.setScissorTest( false );

			// render depth map

			var faceCount;

			for ( var i = 0, il = lights.length; i < il; i ++ ) {

				var light = lights[ i ];
				var shadow = light.shadow;
				var isPointLight = light && light.isPointLight;

				if ( shadow === undefined ) {

					console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );
					continue;

				}

				var shadowCamera = shadow.camera;

				_shadowMapSize.copy( shadow.mapSize );
				_shadowMapSize.min( _maxShadowMapSize );

				if ( isPointLight ) {

					var vpWidth = _shadowMapSize.x;
					var vpHeight = _shadowMapSize.y;

					// These viewports map a cube-map onto a 2D texture with the
					// following orientation:
					//
					//  xzXZ
					//   y Y
					//
					// X - Positive x direction
					// x - Negative x direction
					// Y - Positive y direction
					// y - Negative y direction
					// Z - Positive z direction
					// z - Negative z direction

					// positive X
					cube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );
					// negative X
					cube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );
					// positive Z
					cube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );
					// negative Z
					cube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );
					// positive Y
					cube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );
					// negative Y
					cube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );

					_shadowMapSize.x *= 4.0;
					_shadowMapSize.y *= 2.0;

				}

				if ( shadow.map === null ) {

					var pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };

					shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );
					shadow.map.texture.name = light.name + ".shadowMap";

					shadowCamera.updateProjectionMatrix();

				}

				if ( shadow.isSpotLightShadow ) {

					shadow.update( light );

				}

				var shadowMap = shadow.map;
				var shadowMatrix = shadow.matrix;

				_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );
				shadowCamera.position.copy( _lightPositionWorld );

				if ( isPointLight ) {

					faceCount = 6;

					// for point lights we set the shadow matrix to be a translation-only matrix
					// equal to inverse of the light's position

					shadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );

				} else {

					faceCount = 1;

					_lookTarget.setFromMatrixPosition( light.target.matrixWorld );
					shadowCamera.lookAt( _lookTarget );
					shadowCamera.updateMatrixWorld();

					// compute shadow matrix

					shadowMatrix.set(
						0.5, 0.0, 0.0, 0.5,
						0.0, 0.5, 0.0, 0.5,
						0.0, 0.0, 0.5, 0.5,
						0.0, 0.0, 0.0, 1.0
					);

					shadowMatrix.multiply( shadowCamera.projectionMatrix );
					shadowMatrix.multiply( shadowCamera.matrixWorldInverse );

				}

				_renderer.setRenderTarget( shadowMap );
				_renderer.clear();

				// render shadow map for each cube face (if omni-directional) or
				// run a single pass if not

				for ( var face = 0; face < faceCount; face ++ ) {

					if ( isPointLight ) {

						_lookTarget.copy( shadowCamera.position );
						_lookTarget.add( cubeDirections[ face ] );
						shadowCamera.up.copy( cubeUps[ face ] );
						shadowCamera.lookAt( _lookTarget );
						shadowCamera.updateMatrixWorld();

						var vpDimensions = cube2DViewPorts[ face ];
						_state.viewport( vpDimensions );

					}

					// update camera matrices and frustum

					_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );
					_frustum.setFromMatrix( _projScreenMatrix );

					// set object matrices & frustum culling

					renderObject( scene, camera, shadowCamera, isPointLight );

				}

			}

			scope.needsUpdate = false;

		};

		function getDepthMaterial( object, material, isPointLight, lightPositionWorld, shadowCameraNear, shadowCameraFar ) {

			var geometry = object.geometry;

			var result = null;

			var materialVariants = _depthMaterials;
			var customMaterial = object.customDepthMaterial;

			if ( isPointLight ) {

				materialVariants = _distanceMaterials;
				customMaterial = object.customDistanceMaterial;

			}

			if ( ! customMaterial ) {

				var useMorphing = false;

				if ( material.morphTargets ) {

					if ( geometry && geometry.isBufferGeometry ) {

						useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;

					} else if ( geometry && geometry.isGeometry ) {

						useMorphing = geometry.morphTargets && geometry.morphTargets.length > 0;

					}

				}

				if ( object.isSkinnedMesh && material.skinning === false ) {

					console.warn( 'THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object );

				}

				var useSkinning = object.isSkinnedMesh && material.skinning;

				var variantIndex = 0;

				if ( useMorphing ) variantIndex |= _MorphingFlag;
				if ( useSkinning ) variantIndex |= _SkinningFlag;

				result = materialVariants[ variantIndex ];

			} else {

				result = customMaterial;

			}

			if ( _renderer.localClippingEnabled &&
					material.clipShadows === true &&
					material.clippingPlanes.length !== 0 ) {

				// in this case we need a unique material instance reflecting the
				// appropriate state

				var keyA = result.uuid, keyB = material.uuid;

				var materialsForVariant = _materialCache[ keyA ];

				if ( materialsForVariant === undefined ) {

					materialsForVariant = {};
					_materialCache[ keyA ] = materialsForVariant;

				}

				var cachedMaterial = materialsForVariant[ keyB ];

				if ( cachedMaterial === undefined ) {

					cachedMaterial = result.clone();
					materialsForVariant[ keyB ] = cachedMaterial;

				}

				result = cachedMaterial;

			}

			result.visible = material.visible;
			result.wireframe = material.wireframe;

			result.side = ( material.shadowSide != null ) ? material.shadowSide : shadowSide[ material.side ];

			result.clipShadows = material.clipShadows;
			result.clippingPlanes = material.clippingPlanes;
			result.clipIntersection = material.clipIntersection;

			result.wireframeLinewidth = material.wireframeLinewidth;
			result.linewidth = material.linewidth;

			if ( isPointLight && result.isMeshDistanceMaterial ) {

				result.referencePosition.copy( lightPositionWorld );
				result.nearDistance = shadowCameraNear;
				result.farDistance = shadowCameraFar;

			}

			return result;

		}

		function renderObject( object, camera, shadowCamera, isPointLight ) {

			if ( object.visible === false ) return;

			var visible = object.layers.test( camera.layers );

			if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {

				if ( object.castShadow && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {

					object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );

					var geometry = _objects.update( object );
					var material = object.material;

					if ( Array.isArray( material ) ) {

						var groups = geometry.groups;

						for ( var k = 0, kl = groups.length; k < kl; k ++ ) {

							var group = groups[ k ];
							var groupMaterial = material[ group.materialIndex ];

							if ( groupMaterial && groupMaterial.visible ) {

								var depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
								_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );

							}

						}

					} else if ( material.visible ) {

						var depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
						_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );

					}

				}

			}

			var children = object.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				renderObject( children[ i ], camera, shadowCamera, isPointLight );

			}

		}

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLState( gl, extensions, utils, capabilities ) {

		function ColorBuffer() {

			var locked = false;

			var color = new Vector4();
			var currentColorMask = null;
			var currentColorClear = new Vector4( 0, 0, 0, 0 );

			return {

				setMask: function ( colorMask ) {

					if ( currentColorMask !== colorMask && ! locked ) {

						gl.colorMask( colorMask, colorMask, colorMask, colorMask );
						currentColorMask = colorMask;

					}

				},

				setLocked: function ( lock ) {

					locked = lock;

				},

				setClear: function ( r, g, b, a, premultipliedAlpha ) {

					if ( premultipliedAlpha === true ) {

						r *= a; g *= a; b *= a;

					}

					color.set( r, g, b, a );

					if ( currentColorClear.equals( color ) === false ) {

						gl.clearColor( r, g, b, a );
						currentColorClear.copy( color );

					}

				},

				reset: function () {

					locked = false;

					currentColorMask = null;
					currentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state

				}

			};

		}

		function DepthBuffer() {

			var locked = false;

			var currentDepthMask = null;
			var currentDepthFunc = null;
			var currentDepthClear = null;

			return {

				setTest: function ( depthTest ) {

					if ( depthTest ) {

						enable( gl.DEPTH_TEST );

					} else {

						disable( gl.DEPTH_TEST );

					}

				},

				setMask: function ( depthMask ) {

					if ( currentDepthMask !== depthMask && ! locked ) {

						gl.depthMask( depthMask );
						currentDepthMask = depthMask;

					}

				},

				setFunc: function ( depthFunc ) {

					if ( currentDepthFunc !== depthFunc ) {

						if ( depthFunc ) {

							switch ( depthFunc ) {

								case NeverDepth:

									gl.depthFunc( gl.NEVER );
									break;

								case AlwaysDepth:

									gl.depthFunc( gl.ALWAYS );
									break;

								case LessDepth:

									gl.depthFunc( gl.LESS );
									break;

								case LessEqualDepth:

									gl.depthFunc( gl.LEQUAL );
									break;

								case EqualDepth:

									gl.depthFunc( gl.EQUAL );
									break;

								case GreaterEqualDepth:

									gl.depthFunc( gl.GEQUAL );
									break;

								case GreaterDepth:

									gl.depthFunc( gl.GREATER );
									break;

								case NotEqualDepth:

									gl.depthFunc( gl.NOTEQUAL );
									break;

								default:

									gl.depthFunc( gl.LEQUAL );

							}

						} else {

							gl.depthFunc( gl.LEQUAL );

						}

						currentDepthFunc = depthFunc;

					}

				},

				setLocked: function ( lock ) {

					locked = lock;

				},

				setClear: function ( depth ) {

					if ( currentDepthClear !== depth ) {

						gl.clearDepth( depth );
						currentDepthClear = depth;

					}

				},

				reset: function () {

					locked = false;

					currentDepthMask = null;
					currentDepthFunc = null;
					currentDepthClear = null;

				}

			};

		}

		function StencilBuffer() {

			var locked = false;

			var currentStencilMask = null;
			var currentStencilFunc = null;
			var currentStencilRef = null;
			var currentStencilFuncMask = null;
			var currentStencilFail = null;
			var currentStencilZFail = null;
			var currentStencilZPass = null;
			var currentStencilClear = null;

			return {

				setTest: function ( stencilTest ) {

					if ( stencilTest ) {

						enable( gl.STENCIL_TEST );

					} else {

						disable( gl.STENCIL_TEST );

					}

				},

				setMask: function ( stencilMask ) {

					if ( currentStencilMask !== stencilMask && ! locked ) {

						gl.stencilMask( stencilMask );
						currentStencilMask = stencilMask;

					}

				},

				setFunc: function ( stencilFunc, stencilRef, stencilMask ) {

					if ( currentStencilFunc !== stencilFunc ||
					     currentStencilRef 	!== stencilRef 	||
					     currentStencilFuncMask !== stencilMask ) {

						gl.stencilFunc( stencilFunc, stencilRef, stencilMask );

						currentStencilFunc = stencilFunc;
						currentStencilRef = stencilRef;
						currentStencilFuncMask = stencilMask;

					}

				},

				setOp: function ( stencilFail, stencilZFail, stencilZPass ) {

					if ( currentStencilFail	 !== stencilFail 	||
					     currentStencilZFail !== stencilZFail ||
					     currentStencilZPass !== stencilZPass ) {

						gl.stencilOp( stencilFail, stencilZFail, stencilZPass );

						currentStencilFail = stencilFail;
						currentStencilZFail = stencilZFail;
						currentStencilZPass = stencilZPass;

					}

				},

				setLocked: function ( lock ) {

					locked = lock;

				},

				setClear: function ( stencil ) {

					if ( currentStencilClear !== stencil ) {

						gl.clearStencil( stencil );
						currentStencilClear = stencil;

					}

				},

				reset: function () {

					locked = false;

					currentStencilMask = null;
					currentStencilFunc = null;
					currentStencilRef = null;
					currentStencilFuncMask = null;
					currentStencilFail = null;
					currentStencilZFail = null;
					currentStencilZPass = null;
					currentStencilClear = null;

				}

			};

		}

		//

		var colorBuffer = new ColorBuffer();
		var depthBuffer = new DepthBuffer();
		var stencilBuffer = new StencilBuffer();

		var maxVertexAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );
		var newAttributes = new Uint8Array( maxVertexAttributes );
		var enabledAttributes = new Uint8Array( maxVertexAttributes );
		var attributeDivisors = new Uint8Array( maxVertexAttributes );

		var enabledCapabilities = {};

		var compressedTextureFormats = null;

		var currentProgram = null;

		var currentBlendingEnabled = null;
		var currentBlending = null;
		var currentBlendEquation = null;
		var currentBlendSrc = null;
		var currentBlendDst = null;
		var currentBlendEquationAlpha = null;
		var currentBlendSrcAlpha = null;
		var currentBlendDstAlpha = null;
		var currentPremultipledAlpha = false;

		var currentFlipSided = null;
		var currentCullFace = null;

		var currentLineWidth = null;

		var currentPolygonOffsetFactor = null;
		var currentPolygonOffsetUnits = null;

		var maxTextures = gl.getParameter( gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS );

		var lineWidthAvailable = false;
		var version = 0;
		var glVersion = gl.getParameter( gl.VERSION );

		if ( glVersion.indexOf( 'WebGL' ) !== - 1 ) {

			version = parseFloat( /^WebGL\ ([0-9])/.exec( glVersion )[ 1 ] );
			lineWidthAvailable = ( version >= 1.0 );

		} else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) {

			version = parseFloat( /^OpenGL\ ES\ ([0-9])/.exec( glVersion )[ 1 ] );
			lineWidthAvailable = ( version >= 2.0 );

		}

		var currentTextureSlot = null;
		var currentBoundTextures = {};

		var currentScissor = new Vector4();
		var currentViewport = new Vector4();

		function createTexture( type, target, count ) {

			var data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.
			var texture = gl.createTexture();

			gl.bindTexture( type, texture );
			gl.texParameteri( type, gl.TEXTURE_MIN_FILTER, gl.NEAREST );
			gl.texParameteri( type, gl.TEXTURE_MAG_FILTER, gl.NEAREST );

			for ( var i = 0; i < count; i ++ ) {

				gl.texImage2D( target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data );

			}

			return texture;

		}

		var emptyTextures = {};
		emptyTextures[ gl.TEXTURE_2D ] = createTexture( gl.TEXTURE_2D, gl.TEXTURE_2D, 1 );
		emptyTextures[ gl.TEXTURE_CUBE_MAP ] = createTexture( gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6 );

		// init

		colorBuffer.setClear( 0, 0, 0, 1 );
		depthBuffer.setClear( 1 );
		stencilBuffer.setClear( 0 );

		enable( gl.DEPTH_TEST );
		depthBuffer.setFunc( LessEqualDepth );

		setFlipSided( false );
		setCullFace( CullFaceBack );
		enable( gl.CULL_FACE );

		setBlending( NoBlending );

		//

		function initAttributes() {

			for ( var i = 0, l = newAttributes.length; i < l; i ++ ) {

				newAttributes[ i ] = 0;

			}

		}

		function enableAttribute( attribute ) {

			enableAttributeAndDivisor( attribute, 0 );

		}

		function enableAttributeAndDivisor( attribute, meshPerAttribute ) {

			newAttributes[ attribute ] = 1;

			if ( enabledAttributes[ attribute ] === 0 ) {

				gl.enableVertexAttribArray( attribute );
				enabledAttributes[ attribute ] = 1;

			}

			if ( attributeDivisors[ attribute ] !== meshPerAttribute ) {

				var extension = capabilities.isWebGL2 ? gl : extensions.get( 'ANGLE_instanced_arrays' );

				extension[ capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE' ]( attribute, meshPerAttribute );
				attributeDivisors[ attribute ] = meshPerAttribute;

			}

		}

		function disableUnusedAttributes() {

			for ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) {

				if ( enabledAttributes[ i ] !== newAttributes[ i ] ) {

					gl.disableVertexAttribArray( i );
					enabledAttributes[ i ] = 0;

				}

			}

		}

		function enable( id ) {

			if ( enabledCapabilities[ id ] !== true ) {

				gl.enable( id );
				enabledCapabilities[ id ] = true;

			}

		}

		function disable( id ) {

			if ( enabledCapabilities[ id ] !== false ) {

				gl.disable( id );
				enabledCapabilities[ id ] = false;

			}

		}

		function getCompressedTextureFormats() {

			if ( compressedTextureFormats === null ) {

				compressedTextureFormats = [];

				if ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||
				     extensions.get( 'WEBGL_compressed_texture_s3tc' ) ||
				     extensions.get( 'WEBGL_compressed_texture_etc1' ) ||
				     extensions.get( 'WEBGL_compressed_texture_astc' ) ) {

					var formats = gl.getParameter( gl.COMPRESSED_TEXTURE_FORMATS );

					for ( var i = 0; i < formats.length; i ++ ) {

						compressedTextureFormats.push( formats[ i ] );

					}

				}

			}

			return compressedTextureFormats;

		}

		function useProgram( program ) {

			if ( currentProgram !== program ) {

				gl.useProgram( program );

				currentProgram = program;

				return true;

			}

			return false;

		}

		function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {

			if ( blending === NoBlending ) {

				if ( currentBlendingEnabled ) {

					disable( gl.BLEND );
					currentBlendingEnabled = false;

				}

				return;

			}

			if ( ! currentBlendingEnabled ) {

				enable( gl.BLEND );
				currentBlendingEnabled = true;

			}

			if ( blending !== CustomBlending ) {

				if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {

					if ( currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation ) {

						gl.blendEquation( gl.FUNC_ADD );

						currentBlendEquation = AddEquation;
						currentBlendEquationAlpha = AddEquation;

					}

					if ( premultipliedAlpha ) {

						switch ( blending ) {

							case NormalBlending:
								gl.blendFuncSeparate( gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );
								break;

							case AdditiveBlending:
								gl.blendFunc( gl.ONE, gl.ONE );
								break;

							case SubtractiveBlending:
								gl.blendFuncSeparate( gl.ZERO, gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ONE_MINUS_SRC_ALPHA );
								break;

							case MultiplyBlending:
								gl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA );
								break;

							default:
								console.error( 'THREE.WebGLState: Invalid blending: ', blending );
								break;

						}

					} else {

						switch ( blending ) {

							case NormalBlending:
								gl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );
								break;

							case AdditiveBlending:
								gl.blendFunc( gl.SRC_ALPHA, gl.ONE );
								break;

							case SubtractiveBlending:
								gl.blendFunc( gl.ZERO, gl.ONE_MINUS_SRC_COLOR );
								break;

							case MultiplyBlending:
								gl.blendFunc( gl.ZERO, gl.SRC_COLOR );
								break;

							default:
								console.error( 'THREE.WebGLState: Invalid blending: ', blending );
								break;

						}

					}

					currentBlendSrc = null;
					currentBlendDst = null;
					currentBlendSrcAlpha = null;
					currentBlendDstAlpha = null;

					currentBlending = blending;
					currentPremultipledAlpha = premultipliedAlpha;

				}

				return;

			}

			// custom blending

			blendEquationAlpha = blendEquationAlpha || blendEquation;
			blendSrcAlpha = blendSrcAlpha || blendSrc;
			blendDstAlpha = blendDstAlpha || blendDst;

			if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {

				gl.blendEquationSeparate( utils.convert( blendEquation ), utils.convert( blendEquationAlpha ) );

				currentBlendEquation = blendEquation;
				currentBlendEquationAlpha = blendEquationAlpha;

			}

			if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {

				gl.blendFuncSeparate( utils.convert( blendSrc ), utils.convert( blendDst ), utils.convert( blendSrcAlpha ), utils.convert( blendDstAlpha ) );

				currentBlendSrc = blendSrc;
				currentBlendDst = blendDst;
				currentBlendSrcAlpha = blendSrcAlpha;
				currentBlendDstAlpha = blendDstAlpha;

			}

			currentBlending = blending;
			currentPremultipledAlpha = null;

		}

		function setMaterial( material, frontFaceCW ) {

			material.side === DoubleSide
				? disable( gl.CULL_FACE )
				: enable( gl.CULL_FACE );

			var flipSided = ( material.side === BackSide );
			if ( frontFaceCW ) flipSided = ! flipSided;

			setFlipSided( flipSided );

			( material.blending === NormalBlending && material.transparent === false )
				? setBlending( NoBlending )
				: setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );

			depthBuffer.setFunc( material.depthFunc );
			depthBuffer.setTest( material.depthTest );
			depthBuffer.setMask( material.depthWrite );
			colorBuffer.setMask( material.colorWrite );

			setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );

		}

		//

		function setFlipSided( flipSided ) {

			if ( currentFlipSided !== flipSided ) {

				if ( flipSided ) {

					gl.frontFace( gl.CW );

				} else {

					gl.frontFace( gl.CCW );

				}

				currentFlipSided = flipSided;

			}

		}

		function setCullFace( cullFace ) {

			if ( cullFace !== CullFaceNone ) {

				enable( gl.CULL_FACE );

				if ( cullFace !== currentCullFace ) {

					if ( cullFace === CullFaceBack ) {

						gl.cullFace( gl.BACK );

					} else if ( cullFace === CullFaceFront ) {

						gl.cullFace( gl.FRONT );

					} else {

						gl.cullFace( gl.FRONT_AND_BACK );

					}

				}

			} else {

				disable( gl.CULL_FACE );

			}

			currentCullFace = cullFace;

		}

		function setLineWidth( width ) {

			if ( width !== currentLineWidth ) {

				if ( lineWidthAvailable ) gl.lineWidth( width );

				currentLineWidth = width;

			}

		}

		function setPolygonOffset( polygonOffset, factor, units ) {

			if ( polygonOffset ) {

				enable( gl.POLYGON_OFFSET_FILL );

				if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {

					gl.polygonOffset( factor, units );

					currentPolygonOffsetFactor = factor;
					currentPolygonOffsetUnits = units;

				}

			} else {

				disable( gl.POLYGON_OFFSET_FILL );

			}

		}

		function setScissorTest( scissorTest ) {

			if ( scissorTest ) {

				enable( gl.SCISSOR_TEST );

			} else {

				disable( gl.SCISSOR_TEST );

			}

		}

		// texture

		function activeTexture( webglSlot ) {

			if ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1;

			if ( currentTextureSlot !== webglSlot ) {

				gl.activeTexture( webglSlot );
				currentTextureSlot = webglSlot;

			}

		}

		function bindTexture( webglType, webglTexture ) {

			if ( currentTextureSlot === null ) {

				activeTexture();

			}

			var boundTexture = currentBoundTextures[ currentTextureSlot ];

			if ( boundTexture === undefined ) {

				boundTexture = { type: undefined, texture: undefined };
				currentBoundTextures[ currentTextureSlot ] = boundTexture;

			}

			if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {

				gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );

				boundTexture.type = webglType;
				boundTexture.texture = webglTexture;

			}

		}

		function compressedTexImage2D() {

			try {

				gl.compressedTexImage2D.apply( gl, arguments );

			} catch ( error ) {

				console.error( 'THREE.WebGLState:', error );

			}

		}

		function texImage2D() {

			try {

				gl.texImage2D.apply( gl, arguments );

			} catch ( error ) {

				console.error( 'THREE.WebGLState:', error );

			}

		}

		//

		function scissor( scissor ) {

			if ( currentScissor.equals( scissor ) === false ) {

				gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );
				currentScissor.copy( scissor );

			}

		}

		function viewport( viewport ) {

			if ( currentViewport.equals( viewport ) === false ) {

				gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );
				currentViewport.copy( viewport );

			}

		}

		//

		function reset() {

			for ( var i = 0; i < enabledAttributes.length; i ++ ) {

				if ( enabledAttributes[ i ] === 1 ) {

					gl.disableVertexAttribArray( i );
					enabledAttributes[ i ] = 0;

				}

			}

			enabledCapabilities = {};

			compressedTextureFormats = null;

			currentTextureSlot = null;
			currentBoundTextures = {};

			currentProgram = null;

			currentBlending = null;

			currentFlipSided = null;
			currentCullFace = null;

			colorBuffer.reset();
			depthBuffer.reset();
			stencilBuffer.reset();

		}

		return {

			buffers: {
				color: colorBuffer,
				depth: depthBuffer,
				stencil: stencilBuffer
			},

			initAttributes: initAttributes,
			enableAttribute: enableAttribute,
			enableAttributeAndDivisor: enableAttributeAndDivisor,
			disableUnusedAttributes: disableUnusedAttributes,
			enable: enable,
			disable: disable,
			getCompressedTextureFormats: getCompressedTextureFormats,

			useProgram: useProgram,

			setBlending: setBlending,
			setMaterial: setMaterial,

			setFlipSided: setFlipSided,
			setCullFace: setCullFace,

			setLineWidth: setLineWidth,
			setPolygonOffset: setPolygonOffset,

			setScissorTest: setScissorTest,

			activeTexture: activeTexture,
			bindTexture: bindTexture,
			compressedTexImage2D: compressedTexImage2D,
			texImage2D: texImage2D,

			scissor: scissor,
			viewport: viewport,

			reset: reset

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ) {

		var _videoTextures = {};
		var _canvas;

		//

		function clampToMaxSize( image, maxSize ) {

			if ( image.width > maxSize || image.height > maxSize ) {

				if ( 'data' in image ) {

					console.warn( 'THREE.WebGLRenderer: image in DataTexture is too big (' + image.width + 'x' + image.height + ').' );
					return;

				}

				// Warning: Scaling through the canvas will only work with images that use
				// premultiplied alpha.

				var scale = maxSize / Math.max( image.width, image.height );

				var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
				canvas.width = Math.floor( image.width * scale );
				canvas.height = Math.floor( image.height * scale );

				var context = canvas.getContext( '2d' );
				context.drawImage( image, 0, 0, image.width, image.height, 0, 0, canvas.width, canvas.height );

				console.warn( 'THREE.WebGLRenderer: image is too big (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height );

				return canvas;

			}

			return image;

		}

		function isPowerOfTwo( image ) {

			return _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height );

		}

		function makePowerOfTwo( image ) {

			if ( image instanceof HTMLImageElement || image instanceof HTMLCanvasElement || image instanceof ImageBitmap ) {

				if ( _canvas === undefined ) _canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );

				_canvas.width = _Math.floorPowerOfTwo( image.width );
				_canvas.height = _Math.floorPowerOfTwo( image.height );

				var context = _canvas.getContext( '2d' );
				context.drawImage( image, 0, 0, _canvas.width, _canvas.height );

				console.warn( 'THREE.WebGLRenderer: image is not power of two (' + image.width + 'x' + image.height + '). Resized to ' + _canvas.width + 'x' + _canvas.height );

				return _canvas;

			}

			return image;

		}

		function textureNeedsPowerOfTwo( texture ) {

			if ( capabilities.isWebGL2 ) return false;

			return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||
				( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );

		}

		function textureNeedsGenerateMipmaps( texture, isPowerOfTwo ) {

			return texture.generateMipmaps && isPowerOfTwo &&
				texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;

		}

		function generateMipmap( target, texture, width, height ) {

			_gl.generateMipmap( target );

			var textureProperties = properties.get( texture );

			// Note: Math.log( x ) * Math.LOG2E used instead of Math.log2( x ) which is not supported by IE11
			textureProperties.__maxMipLevel = Math.log( Math.max( width, height ) ) * Math.LOG2E;

		}

		function getInternalFormat( glFormat, glType ) {

			if ( ! capabilities.isWebGL2 ) return glFormat;

			if ( glFormat === _gl.RGB ) {

				if ( glType === _gl.FLOAT ) return _gl.RGB32F;
				if ( glType === _gl.HALF_FLOAT ) return _gl.RGB16F;
				if ( glType === _gl.UNSIGNED_BYTE ) return _gl.RGB8;

			}

			if ( glFormat === _gl.RGBA ) {

				if ( glType === _gl.FLOAT ) return _gl.RGBA32F;
				if ( glType === _gl.HALF_FLOAT ) return _gl.RGBA16F;
				if ( glType === _gl.UNSIGNED_BYTE ) return _gl.RGBA8;

			}

			return glFormat;

		}

		// Fallback filters for non-power-of-2 textures

		function filterFallback( f ) {

			if ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) {

				return _gl.NEAREST;

			}

			return _gl.LINEAR;

		}

		//

		function onTextureDispose( event ) {

			var texture = event.target;

			texture.removeEventListener( 'dispose', onTextureDispose );

			deallocateTexture( texture );

			if ( texture.isVideoTexture ) {

				delete _videoTextures[ texture.id ];

			}

			info.memory.textures --;

		}

		function onRenderTargetDispose( event ) {

			var renderTarget = event.target;

			renderTarget.removeEventListener( 'dispose', onRenderTargetDispose );

			deallocateRenderTarget( renderTarget );

			info.memory.textures --;

		}

		//

		function deallocateTexture( texture ) {

			var textureProperties = properties.get( texture );

			if ( texture.image && textureProperties.__image__webglTextureCube ) {

				// cube texture

				_gl.deleteTexture( textureProperties.__image__webglTextureCube );

			} else {

				// 2D texture

				if ( textureProperties.__webglInit === undefined ) return;

				_gl.deleteTexture( textureProperties.__webglTexture );

			}

			// remove all webgl properties
			properties.remove( texture );

		}

		function deallocateRenderTarget( renderTarget ) {

			var renderTargetProperties = properties.get( renderTarget );
			var textureProperties = properties.get( renderTarget.texture );

			if ( ! renderTarget ) return;

			if ( textureProperties.__webglTexture !== undefined ) {

				_gl.deleteTexture( textureProperties.__webglTexture );

			}

			if ( renderTarget.depthTexture ) {

				renderTarget.depthTexture.dispose();

			}

			if ( renderTarget.isWebGLRenderTargetCube ) {

				for ( var i = 0; i < 6; i ++ ) {

					_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );
					if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );

				}

			} else {

				_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );
				if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );

			}

			properties.remove( renderTarget.texture );
			properties.remove( renderTarget );

		}

		//



		function setTexture2D( texture, slot ) {

			var textureProperties = properties.get( texture );

			if ( texture.isVideoTexture ) updateVideoTexture( texture );

			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

				var image = texture.image;

				if ( image === undefined ) {

					//console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined' );

				} else if ( image.complete === false ) {

					console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete' );

				} else {

					uploadTexture( textureProperties, texture, slot );
					return;

				}

			}

			state.activeTexture( _gl.TEXTURE0 + slot );
			state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );

		}

		function setTextureCube( texture, slot ) {

			var textureProperties = properties.get( texture );

			if ( texture.image.length === 6 ) {

				if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

					if ( ! textureProperties.__image__webglTextureCube ) {

						texture.addEventListener( 'dispose', onTextureDispose );

						textureProperties.__image__webglTextureCube = _gl.createTexture();

						info.memory.textures ++;

					}

					state.activeTexture( _gl.TEXTURE0 + slot );
					state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );

					_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );

					var isCompressed = ( texture && texture.isCompressedTexture );
					var isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );

					var cubeImage = [];

					for ( var i = 0; i < 6; i ++ ) {

						if ( ! isCompressed && ! isDataTexture ) {

							cubeImage[ i ] = clampToMaxSize( texture.image[ i ], capabilities.maxCubemapSize );

						} else {

							cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];

						}

					}

					var image = cubeImage[ 0 ],
						isPowerOfTwoImage = isPowerOfTwo( image ),
						glFormat = utils.convert( texture.format ),
						glType = utils.convert( texture.type ),
						glInternalFormat = getInternalFormat( glFormat, glType );

					setTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, isPowerOfTwoImage );

					for ( var i = 0; i < 6; i ++ ) {

						if ( ! isCompressed ) {

							if ( isDataTexture ) {

								state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );

							} else {

								state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, glFormat, glType, cubeImage[ i ] );

							}

						} else {

							var mipmap, mipmaps = cubeImage[ i ].mipmaps;

							for ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {

								mipmap = mipmaps[ j ];

								if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {

									if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {

										state.compressedTexImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );

									} else {

										console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' );

									}

								} else {

									state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

								}

							}

						}

					}

					if ( ! isCompressed ) {

						textureProperties.__maxMipLevel = 0;

					} else {

						textureProperties.__maxMipLevel = mipmaps.length - 1;

					}

					if ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) {

						// We assume images for cube map have the same size.
						generateMipmap( _gl.TEXTURE_CUBE_MAP, texture, image.width, image.height );

					}

					textureProperties.__version = texture.version;

					if ( texture.onUpdate ) texture.onUpdate( texture );

				} else {

					state.activeTexture( _gl.TEXTURE0 + slot );
					state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );

				}

			}

		}

		function setTextureCubeDynamic( texture, slot ) {

			state.activeTexture( _gl.TEXTURE0 + slot );
			state.bindTexture( _gl.TEXTURE_CUBE_MAP, properties.get( texture ).__webglTexture );

		}

		function setTextureParameters( textureType, texture, isPowerOfTwoImage ) {

			var extension;

			if ( isPowerOfTwoImage ) {

				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, utils.convert( texture.wrapS ) );
				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, utils.convert( texture.wrapT ) );

				_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, utils.convert( texture.magFilter ) );
				_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, utils.convert( texture.minFilter ) );

			} else {

				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE );
				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE );

				if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {

					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.' );

				}

				_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, filterFallback( texture.magFilter ) );
				_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, filterFallback( texture.minFilter ) );

				if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {

					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.' );

				}

			}

			extension = extensions.get( 'EXT_texture_filter_anisotropic' );

			if ( extension ) {

				if ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;
				if ( texture.type === HalfFloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_half_float_linear' ) ) === null ) return;

				if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {

					_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );
					properties.get( texture ).__currentAnisotropy = texture.anisotropy;

				}

			}

		}

		function uploadTexture( textureProperties, texture, slot ) {

			if ( textureProperties.__webglInit === undefined ) {

				textureProperties.__webglInit = true;

				texture.addEventListener( 'dispose', onTextureDispose );

				textureProperties.__webglTexture = _gl.createTexture();

				info.memory.textures ++;

			}

			state.activeTexture( _gl.TEXTURE0 + slot );
			state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );

			_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
			_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );
			_gl.pixelStorei( _gl.UNPACK_ALIGNMENT, texture.unpackAlignment );

			var image = clampToMaxSize( texture.image, capabilities.maxTextureSize );

			if ( textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( image ) === false ) {

				image = makePowerOfTwo( image );

			}

			var isPowerOfTwoImage = isPowerOfTwo( image ),
				glFormat = utils.convert( texture.format ),
				glType = utils.convert( texture.type ),
				glInternalFormat = getInternalFormat( glFormat, glType );

			setTextureParameters( _gl.TEXTURE_2D, texture, isPowerOfTwoImage );

			var mipmap, mipmaps = texture.mipmaps;

			if ( texture.isDepthTexture ) {

				// populate depth texture with dummy data

				glInternalFormat = _gl.DEPTH_COMPONENT;

				if ( texture.type === FloatType ) {

					if ( ! capabilities.isWebGL2 ) throw new Error( 'Float Depth Texture only supported in WebGL2.0' );
					glInternalFormat = _gl.DEPTH_COMPONENT32F;

				} else if ( capabilities.isWebGL2 ) {

					// WebGL 2.0 requires signed internalformat for glTexImage2D
					glInternalFormat = _gl.DEPTH_COMPONENT16;

				}

				if ( texture.format === DepthFormat && glInternalFormat === _gl.DEPTH_COMPONENT ) {

					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
					// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
					if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {

						console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );

						texture.type = UnsignedShortType;
						glType = utils.convert( texture.type );

					}

				}

				// Depth stencil textures need the DEPTH_STENCIL internal format
				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
				if ( texture.format === DepthStencilFormat ) {

					glInternalFormat = _gl.DEPTH_STENCIL;

					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
					// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
					if ( texture.type !== UnsignedInt248Type ) {

						console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );

						texture.type = UnsignedInt248Type;
						glType = utils.convert( texture.type );

					}

				}

				state.texImage2D( _gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null );

			} else if ( texture.isDataTexture ) {

				// use manually created mipmaps if available
				// if there are no manual mipmaps
				// set 0 level mipmap and then use GL to generate other mipmap levels

				if ( mipmaps.length > 0 && isPowerOfTwoImage ) {

					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {

						mipmap = mipmaps[ i ];
						state.texImage2D( _gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

					}

					texture.generateMipmaps = false;
					textureProperties.__maxMipLevel = mipmaps.length - 1;

				} else {

					state.texImage2D( _gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data );
					textureProperties.__maxMipLevel = 0;

				}

			} else if ( texture.isCompressedTexture ) {

				for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {

					mipmap = mipmaps[ i ];

					if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {

						if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {

							state.compressedTexImage2D( _gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );

						} else {

							console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );

						}

					} else {

						state.texImage2D( _gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

					}

				}

				textureProperties.__maxMipLevel = mipmaps.length - 1;

			} else {

				// regular Texture (image, video, canvas)

				// use manually created mipmaps if available
				// if there are no manual mipmaps
				// set 0 level mipmap and then use GL to generate other mipmap levels

				if ( mipmaps.length > 0 && isPowerOfTwoImage ) {

					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {

						mipmap = mipmaps[ i ];
						state.texImage2D( _gl.TEXTURE_2D, i, glInternalFormat, glFormat, glType, mipmap );

					}

					texture.generateMipmaps = false;
					textureProperties.__maxMipLevel = mipmaps.length - 1;

				} else {

					state.texImage2D( _gl.TEXTURE_2D, 0, glInternalFormat, glFormat, glType, image );
					textureProperties.__maxMipLevel = 0;

				}

			}

			if ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) {

				generateMipmap( _gl.TEXTURE_2D, texture, image.width, image.height );

			}

			textureProperties.__version = texture.version;

			if ( texture.onUpdate ) texture.onUpdate( texture );

		}

		// Render targets

		// Setup storage for target texture and bind it to correct framebuffer
		function setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) {

			var glFormat = utils.convert( renderTarget.texture.format );
			var glType = utils.convert( renderTarget.texture.type );
			var glInternalFormat = getInternalFormat( glFormat, glType );
			state.texImage2D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );
			_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
			_gl.framebufferTexture2D( _gl.FRAMEBUFFER, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );
			_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );

		}

		// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
		function setupRenderBufferStorage( renderbuffer, renderTarget ) {

			_gl.bindRenderbuffer( _gl.RENDERBUFFER, renderbuffer );

			if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {

				_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_COMPONENT16, renderTarget.width, renderTarget.height );
				_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );

			} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {

				_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height );
				_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );

			} else {

				// FIXME: We don't support !depth !stencil
				_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.RGBA4, renderTarget.width, renderTarget.height );

			}

			_gl.bindRenderbuffer( _gl.RENDERBUFFER, null );

		}

		// Setup resources for a Depth Texture for a FBO (needs an extension)
		function setupDepthTexture( framebuffer, renderTarget ) {

			var isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );
			if ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' );

			_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

			if ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {

				throw new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' );

			}

			// upload an empty depth texture with framebuffer size
			if ( ! properties.get( renderTarget.depthTexture ).__webglTexture ||
					renderTarget.depthTexture.image.width !== renderTarget.width ||
					renderTarget.depthTexture.image.height !== renderTarget.height ) {

				renderTarget.depthTexture.image.width = renderTarget.width;
				renderTarget.depthTexture.image.height = renderTarget.height;
				renderTarget.depthTexture.needsUpdate = true;

			}

			setTexture2D( renderTarget.depthTexture, 0 );

			var webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;

			if ( renderTarget.depthTexture.format === DepthFormat ) {

				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );

			} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {

				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );

			} else {

				throw new Error( 'Unknown depthTexture format' );

			}

		}

		// Setup GL resources for a non-texture depth buffer
		function setupDepthRenderbuffer( renderTarget ) {

			var renderTargetProperties = properties.get( renderTarget );

			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );

			if ( renderTarget.depthTexture ) {

				if ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' );

				setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );

			} else {

				if ( isCube ) {

					renderTargetProperties.__webglDepthbuffer = [];

					for ( var i = 0; i < 6; i ++ ) {

						_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[ i ] );
						renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();
						setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );

					}

				} else {

					_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer );
					renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
					setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );

				}

			}

			_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );

		}

		// Set up GL resources for the render target
		function setupRenderTarget( renderTarget ) {

			var renderTargetProperties = properties.get( renderTarget );
			var textureProperties = properties.get( renderTarget.texture );

			renderTarget.addEventListener( 'dispose', onRenderTargetDispose );

			textureProperties.__webglTexture = _gl.createTexture();

			info.memory.textures ++;

			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
			var isTargetPowerOfTwo = isPowerOfTwo( renderTarget );

			// Setup framebuffer

			if ( isCube ) {

				renderTargetProperties.__webglFramebuffer = [];

				for ( var i = 0; i < 6; i ++ ) {

					renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();

				}

			} else {

				renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();

			}

			// Setup color buffer

			if ( isCube ) {

				state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture );
				setTextureParameters( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, isTargetPowerOfTwo );

				for ( var i = 0; i < 6; i ++ ) {

					setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i );

				}

				if ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) {

					generateMipmap( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, renderTarget.width, renderTarget.height );

				}

				state.bindTexture( _gl.TEXTURE_CUBE_MAP, null );

			} else {

				state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );
				setTextureParameters( _gl.TEXTURE_2D, renderTarget.texture, isTargetPowerOfTwo );
				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D );

				if ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) {

					generateMipmap( _gl.TEXTURE_2D, renderTarget.texture, renderTarget.width, renderTarget.height );

				}

				state.bindTexture( _gl.TEXTURE_2D, null );

			}

			// Setup depth and stencil buffers

			if ( renderTarget.depthBuffer ) {

				setupDepthRenderbuffer( renderTarget );

			}

		}

		function updateRenderTargetMipmap( renderTarget ) {

			var texture = renderTarget.texture;
			var isTargetPowerOfTwo = isPowerOfTwo( renderTarget );

			if ( textureNeedsGenerateMipmaps( texture, isTargetPowerOfTwo ) ) {

				var target = renderTarget.isWebGLRenderTargetCube ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D;
				var webglTexture = properties.get( texture ).__webglTexture;

				state.bindTexture( target, webglTexture );
				generateMipmap( target, texture, renderTarget.width, renderTarget.height );
				state.bindTexture( target, null );

			}

		}

		function updateVideoTexture( texture ) {

			var id = texture.id;
			var frame = info.render.frame;

			// Check the last frame we updated the VideoTexture

			if ( _videoTextures[ id ] !== frame ) {

				_videoTextures[ id ] = frame;
				texture.update();

			}

		}

		this.setTexture2D = setTexture2D;
		this.setTextureCube = setTextureCube;
		this.setTextureCubeDynamic = setTextureCubeDynamic;
		this.setupRenderTarget = setupRenderTarget;
		this.updateRenderTargetMipmap = updateRenderTargetMipmap;

	}

	/**
	 * @author thespite / http://www.twitter.com/thespite
	 */

	function WebGLUtils( gl, extensions, capabilities ) {

		function convert( p ) {

			var extension;

			if ( p === RepeatWrapping ) return gl.REPEAT;
			if ( p === ClampToEdgeWrapping ) return gl.CLAMP_TO_EDGE;
			if ( p === MirroredRepeatWrapping ) return gl.MIRRORED_REPEAT;

			if ( p === NearestFilter ) return gl.NEAREST;
			if ( p === NearestMipMapNearestFilter ) return gl.NEAREST_MIPMAP_NEAREST;
			if ( p === NearestMipMapLinearFilter ) return gl.NEAREST_MIPMAP_LINEAR;

			if ( p === LinearFilter ) return gl.LINEAR;
			if ( p === LinearMipMapNearestFilter ) return gl.LINEAR_MIPMAP_NEAREST;
			if ( p === LinearMipMapLinearFilter ) return gl.LINEAR_MIPMAP_LINEAR;

			if ( p === UnsignedByteType ) return gl.UNSIGNED_BYTE;
			if ( p === UnsignedShort4444Type ) return gl.UNSIGNED_SHORT_4_4_4_4;
			if ( p === UnsignedShort5551Type ) return gl.UNSIGNED_SHORT_5_5_5_1;
			if ( p === UnsignedShort565Type ) return gl.UNSIGNED_SHORT_5_6_5;

			if ( p === ByteType ) return gl.BYTE;
			if ( p === ShortType ) return gl.SHORT;
			if ( p === UnsignedShortType ) return gl.UNSIGNED_SHORT;
			if ( p === IntType ) return gl.INT;
			if ( p === UnsignedIntType ) return gl.UNSIGNED_INT;
			if ( p === FloatType ) return gl.FLOAT;

			if ( p === HalfFloatType ) {

				if ( capabilities.isWebGL2 ) return gl.HALF_FLOAT;

				extension = extensions.get( 'OES_texture_half_float' );

				if ( extension !== null ) return extension.HALF_FLOAT_OES;

			}

			if ( p === AlphaFormat ) return gl.ALPHA;
			if ( p === RGBFormat ) return gl.RGB;
			if ( p === RGBAFormat ) return gl.RGBA;
			if ( p === LuminanceFormat ) return gl.LUMINANCE;
			if ( p === LuminanceAlphaFormat ) return gl.LUMINANCE_ALPHA;
			if ( p === DepthFormat ) return gl.DEPTH_COMPONENT;
			if ( p === DepthStencilFormat ) return gl.DEPTH_STENCIL;

			if ( p === AddEquation ) return gl.FUNC_ADD;
			if ( p === SubtractEquation ) return gl.FUNC_SUBTRACT;
			if ( p === ReverseSubtractEquation ) return gl.FUNC_REVERSE_SUBTRACT;

			if ( p === ZeroFactor ) return gl.ZERO;
			if ( p === OneFactor ) return gl.ONE;
			if ( p === SrcColorFactor ) return gl.SRC_COLOR;
			if ( p === OneMinusSrcColorFactor ) return gl.ONE_MINUS_SRC_COLOR;
			if ( p === SrcAlphaFactor ) return gl.SRC_ALPHA;
			if ( p === OneMinusSrcAlphaFactor ) return gl.ONE_MINUS_SRC_ALPHA;
			if ( p === DstAlphaFactor ) return gl.DST_ALPHA;
			if ( p === OneMinusDstAlphaFactor ) return gl.ONE_MINUS_DST_ALPHA;

			if ( p === DstColorFactor ) return gl.DST_COLOR;
			if ( p === OneMinusDstColorFactor ) return gl.ONE_MINUS_DST_COLOR;
			if ( p === SrcAlphaSaturateFactor ) return gl.SRC_ALPHA_SATURATE;

			if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format ||
				p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {

				extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );

				if ( extension !== null ) {

					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;

				}

			}

			if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format ||
				p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {

				extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );

				if ( extension !== null ) {

					if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
					if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
					if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
					if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;

				}

			}

			if ( p === RGB_ETC1_Format ) {

				extension = extensions.get( 'WEBGL_compressed_texture_etc1' );

				if ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL;

			}

			if ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format ||
				p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format ||
				p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format ||
				p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format ||
				p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format ) {

				extension = extensions.get( 'WEBGL_compressed_texture_astc' );

				if ( extension !== null ) {

					return p;

				}

			}

			if ( p === MinEquation || p === MaxEquation ) {

				if ( capabilities.isWebGL2 ) {

					if ( p === MinEquation ) return gl.MIN;
					if ( p === MaxEquation ) return gl.MAX;

				}

				extension = extensions.get( 'EXT_blend_minmax' );

				if ( extension !== null ) {

					if ( p === MinEquation ) return extension.MIN_EXT;
					if ( p === MaxEquation ) return extension.MAX_EXT;

				}

			}

			if ( p === UnsignedInt248Type ) {

				if ( capabilities.isWebGL2 ) return gl.UNSIGNED_INT_24_8;

				extension = extensions.get( 'WEBGL_depth_texture' );

				if ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL;

			}

			return 0;

		}

		return { convert: convert };

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Group() {

		Object3D.call( this );

		this.type = 'Group';

	}

	Group.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Group,

		isGroup: true

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author greggman / http://games.greggman.com/
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * @author tschw
	 */

	function PerspectiveCamera( fov, aspect, near, far ) {

		Camera.call( this );

		this.type = 'PerspectiveCamera';

		this.fov = fov !== undefined ? fov : 50;
		this.zoom = 1;

		this.near = near !== undefined ? near : 0.1;
		this.far = far !== undefined ? far : 2000;
		this.focus = 10;

		this.aspect = aspect !== undefined ? aspect : 1;
		this.view = null;

		this.filmGauge = 35;	// width of the film (default in millimeters)
		this.filmOffset = 0;	// horizontal film offset (same unit as gauge)

		this.updateProjectionMatrix();

	}

	PerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), {

		constructor: PerspectiveCamera,

		isPerspectiveCamera: true,

		copy: function ( source, recursive ) {

			Camera.prototype.copy.call( this, source, recursive );

			this.fov = source.fov;
			this.zoom = source.zoom;

			this.near = source.near;
			this.far = source.far;
			this.focus = source.focus;

			this.aspect = source.aspect;
			this.view = source.view === null ? null : Object.assign( {}, source.view );

			this.filmGauge = source.filmGauge;
			this.filmOffset = source.filmOffset;

			return this;

		},

		/**
		 * Sets the FOV by focal length in respect to the current .filmGauge.
		 *
		 * The default film gauge is 35, so that the focal length can be specified for
		 * a 35mm (full frame) camera.
		 *
		 * Values for focal length and film gauge must have the same unit.
		 */
		setFocalLength: function ( focalLength ) {

			// see http://www.bobatkins.com/photography/technical/field_of_view.html
			var vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;

			this.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope );
			this.updateProjectionMatrix();

		},

		/**
		 * Calculates the focal length from the current .fov and .filmGauge.
		 */
		getFocalLength: function () {

			var vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov );

			return 0.5 * this.getFilmHeight() / vExtentSlope;

		},

		getEffectiveFOV: function () {

			return _Math.RAD2DEG * 2 * Math.atan(
				Math.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom );

		},

		getFilmWidth: function () {

			// film not completely covered in portrait format (aspect < 1)
			return this.filmGauge * Math.min( this.aspect, 1 );

		},

		getFilmHeight: function () {

			// film not completely covered in landscape format (aspect > 1)
			return this.filmGauge / Math.max( this.aspect, 1 );

		},

		/**
		 * Sets an offset in a larger frustum. This is useful for multi-window or
		 * multi-monitor/multi-machine setups.
		 *
		 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
		 * the monitors are in grid like this
		 *
		 *   +---+---+---+
		 *   | A | B | C |
		 *   +---+---+---+
		 *   | D | E | F |
		 *   +---+---+---+
		 *
		 * then for each monitor you would call it like this
		 *
		 *   var w = 1920;
		 *   var h = 1080;
		 *   var fullWidth = w * 3;
		 *   var fullHeight = h * 2;
		 *
		 *   --A--
		 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
		 *   --B--
		 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
		 *   --C--
		 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
		 *   --D--
		 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
		 *   --E--
		 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
		 *   --F--
		 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
		 *
		 *   Note there is no reason monitors have to be the same size or in a grid.
		 */
		setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {

			this.aspect = fullWidth / fullHeight;

			if ( this.view === null ) {

				this.view = {
					enabled: true,
					fullWidth: 1,
					fullHeight: 1,
					offsetX: 0,
					offsetY: 0,
					width: 1,
					height: 1
				};

			}

			this.view.enabled = true;
			this.view.fullWidth = fullWidth;
			this.view.fullHeight = fullHeight;
			this.view.offsetX = x;
			this.view.offsetY = y;
			this.view.width = width;
			this.view.height = height;

			this.updateProjectionMatrix();

		},

		clearViewOffset: function () {

			if ( this.view !== null ) {

				this.view.enabled = false;

			}

			this.updateProjectionMatrix();

		},

		updateProjectionMatrix: function () {

			var near = this.near,
				top = near * Math.tan(
					_Math.DEG2RAD * 0.5 * this.fov ) / this.zoom,
				height = 2 * top,
				width = this.aspect * height,
				left = - 0.5 * width,
				view = this.view;

			if ( this.view !== null && this.view.enabled ) {

				var fullWidth = view.fullWidth,
					fullHeight = view.fullHeight;

				left += view.offsetX * width / fullWidth;
				top -= view.offsetY * height / fullHeight;
				width *= view.width / fullWidth;
				height *= view.height / fullHeight;

			}

			var skew = this.filmOffset;
			if ( skew !== 0 ) left += near * skew / this.getFilmWidth();

			this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );

		},

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			data.object.fov = this.fov;
			data.object.zoom = this.zoom;

			data.object.near = this.near;
			data.object.far = this.far;
			data.object.focus = this.focus;

			data.object.aspect = this.aspect;

			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );

			data.object.filmGauge = this.filmGauge;
			data.object.filmOffset = this.filmOffset;

			return data;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function ArrayCamera( array ) {

		PerspectiveCamera.call( this );

		this.cameras = array || [];

	}

	ArrayCamera.prototype = Object.assign( Object.create( PerspectiveCamera.prototype ), {

		constructor: ArrayCamera,

		isArrayCamera: true

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebVRManager( renderer ) {

		var scope = this;

		var device = null;
		var frameData = null;

		var poseTarget = null;

		var controllers = [];
		var standingMatrix = new Matrix4();
		var standingMatrixInverse = new Matrix4();

		if ( typeof window !== 'undefined' && 'VRFrameData' in window ) {

			frameData = new window.VRFrameData();
			window.addEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );

		}

		var matrixWorldInverse = new Matrix4();
		var tempQuaternion = new Quaternion();
		var tempPosition = new Vector3();

		var cameraL = new PerspectiveCamera();
		cameraL.bounds = new Vector4( 0.0, 0.0, 0.5, 1.0 );
		cameraL.layers.enable( 1 );

		var cameraR = new PerspectiveCamera();
		cameraR.bounds = new Vector4( 0.5, 0.0, 0.5, 1.0 );
		cameraR.layers.enable( 2 );

		var cameraVR = new ArrayCamera( [ cameraL, cameraR ] );
		cameraVR.layers.enable( 1 );
		cameraVR.layers.enable( 2 );

		//

		function isPresenting() {

			return device !== null && device.isPresenting === true;

		}

		var currentSize, currentPixelRatio;

		function onVRDisplayPresentChange() {

			if ( isPresenting() ) {

				var eyeParameters = device.getEyeParameters( 'left' );
				var renderWidth = eyeParameters.renderWidth;
				var renderHeight = eyeParameters.renderHeight;

				currentPixelRatio = renderer.getPixelRatio();
				currentSize = renderer.getSize();

				renderer.setDrawingBufferSize( renderWidth * 2, renderHeight, 1 );

				animation.start();

			} else if ( scope.enabled ) {

				renderer.setDrawingBufferSize( currentSize.width, currentSize.height, currentPixelRatio );

				animation.stop();

			}

		}

		//

		var triggers = [];

		function findGamepad( id ) {

			var gamepads = navigator.getGamepads && navigator.getGamepads();

			for ( var i = 0, j = 0, l = gamepads.length; i < l; i ++ ) {

				var gamepad = gamepads[ i ];

				if ( gamepad && ( gamepad.id === 'Daydream Controller' ||
					gamepad.id === 'Gear VR Controller' || gamepad.id === 'Oculus Go Controller' ||
					gamepad.id === 'OpenVR Gamepad' || gamepad.id.startsWith( 'Oculus Touch' ) ||
					gamepad.id.startsWith( 'Spatial Controller' ) ) ) {

					if ( j === id ) return gamepad;

					j ++;

				}

			}

		}

		function updateControllers() {

			for ( var i = 0; i < controllers.length; i ++ ) {

				var controller = controllers[ i ];

				var gamepad = findGamepad( i );

				if ( gamepad !== undefined && gamepad.pose !== undefined ) {

					if ( gamepad.pose === null ) return;

					//  Pose

					var pose = gamepad.pose;

					if ( pose.hasPosition === false ) controller.position.set( 0.2, - 0.6, - 0.05 );

					if ( pose.position !== null ) controller.position.fromArray( pose.position );
					if ( pose.orientation !== null ) controller.quaternion.fromArray( pose.orientation );
					controller.matrix.compose( controller.position, controller.quaternion, controller.scale );
					controller.matrix.premultiply( standingMatrix );
					controller.matrix.decompose( controller.position, controller.quaternion, controller.scale );
					controller.matrixWorldNeedsUpdate = true;
					controller.visible = true;

					//  Trigger

					var buttonId = gamepad.id === 'Daydream Controller' ? 0 : 1;

					if ( triggers[ i ] !== gamepad.buttons[ buttonId ].pressed ) {

						triggers[ i ] = gamepad.buttons[ buttonId ].pressed;

						if ( triggers[ i ] === true ) {

							controller.dispatchEvent( { type: 'selectstart' } );

						} else {

							controller.dispatchEvent( { type: 'selectend' } );
							controller.dispatchEvent( { type: 'select' } );

						}

					}

				} else {

					controller.visible = false;

				}

			}

		}

		//

		this.enabled = false;
		this.userHeight = 1.6;

		this.getController = function ( id ) {

			var controller = controllers[ id ];

			if ( controller === undefined ) {

				controller = new Group();
				controller.matrixAutoUpdate = false;
				controller.visible = false;

				controllers[ id ] = controller;

			}

			return controller;

		};

		this.getDevice = function () {

			return device;

		};

		this.setDevice = function ( value ) {

			if ( value !== undefined ) device = value;

			animation.setContext( value );

		};

		this.setPoseTarget = function ( object ) {

			if ( object !== undefined ) poseTarget = object;

		};

		this.getCamera = function ( camera ) {

			if ( device === null ) {

				camera.position.set( 0, scope.userHeight, 0 );
				return camera;

			}

			device.depthNear = camera.near;
			device.depthFar = camera.far;

			device.getFrameData( frameData );

			//

			var stageParameters = device.stageParameters;

			if ( stageParameters ) {

				standingMatrix.fromArray( stageParameters.sittingToStandingTransform );

			} else {

				standingMatrix.makeTranslation( 0, scope.userHeight, 0 );

			}


			var pose = frameData.pose;
			var poseObject = poseTarget !== null ? poseTarget : camera;

			// We want to manipulate poseObject by its position and quaternion components since users may rely on them.
			poseObject.matrix.copy( standingMatrix );
			poseObject.matrix.decompose( poseObject.position, poseObject.quaternion, poseObject.scale );

			if ( pose.orientation !== null ) {

				tempQuaternion.fromArray( pose.orientation );
				poseObject.quaternion.multiply( tempQuaternion );

			}

			if ( pose.position !== null ) {

				tempQuaternion.setFromRotationMatrix( standingMatrix );
				tempPosition.fromArray( pose.position );
				tempPosition.applyQuaternion( tempQuaternion );
				poseObject.position.add( tempPosition );

			}

			poseObject.updateMatrixWorld();

			if ( device.isPresenting === false ) return camera;

			//

			cameraL.near = camera.near;
			cameraR.near = camera.near;

			cameraL.far = camera.far;
			cameraR.far = camera.far;

			cameraVR.matrixWorld.copy( camera.matrixWorld );
			cameraVR.matrixWorldInverse.copy( camera.matrixWorldInverse );

			cameraL.matrixWorldInverse.fromArray( frameData.leftViewMatrix );
			cameraR.matrixWorldInverse.fromArray( frameData.rightViewMatrix );

			// TODO (mrdoob) Double check this code

			standingMatrixInverse.getInverse( standingMatrix );

			cameraL.matrixWorldInverse.multiply( standingMatrixInverse );
			cameraR.matrixWorldInverse.multiply( standingMatrixInverse );

			var parent = poseObject.parent;

			if ( parent !== null ) {

				matrixWorldInverse.getInverse( parent.matrixWorld );

				cameraL.matrixWorldInverse.multiply( matrixWorldInverse );
				cameraR.matrixWorldInverse.multiply( matrixWorldInverse );

			}

			// envMap and Mirror needs camera.matrixWorld

			cameraL.matrixWorld.getInverse( cameraL.matrixWorldInverse );
			cameraR.matrixWorld.getInverse( cameraR.matrixWorldInverse );

			cameraL.projectionMatrix.fromArray( frameData.leftProjectionMatrix );
			cameraR.projectionMatrix.fromArray( frameData.rightProjectionMatrix );

			// HACK (mrdoob)
			// https://github.com/w3c/webvr/issues/203

			cameraVR.projectionMatrix.copy( cameraL.projectionMatrix );

			//

			var layers = device.getLayers();

			if ( layers.length ) {

				var layer = layers[ 0 ];

				if ( layer.leftBounds !== null && layer.leftBounds.length === 4 ) {

					cameraL.bounds.fromArray( layer.leftBounds );

				}

				if ( layer.rightBounds !== null && layer.rightBounds.length === 4 ) {

					cameraR.bounds.fromArray( layer.rightBounds );

				}

			}

			updateControllers();

			return cameraVR;

		};

		this.getStandingMatrix = function () {

			return standingMatrix;

		};

		this.isPresenting = isPresenting;

		// Animation Loop

		var animation = new WebGLAnimation();

		this.setAnimationLoop = function ( callback ) {

			animation.setAnimationLoop( callback );

		};

		this.submitFrame = function () {

			if ( isPresenting() ) device.submitFrame();

		};

		this.dispose = function () {

			if ( typeof window !== 'undefined' ) {

				window.removeEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange );

			}

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebXRManager( renderer ) {

		var gl = renderer.context;

		var device = null;
		var session = null;

		var frameOfRef = null;

		var pose = null;

		var controllers = [];
		var inputSources = [];

		function isPresenting() {

			return session !== null && frameOfRef !== null;


		}

		//

		var cameraL = new PerspectiveCamera();
		cameraL.layers.enable( 1 );
		cameraL.viewport = new Vector4();

		var cameraR = new PerspectiveCamera();
		cameraR.layers.enable( 2 );
		cameraR.viewport = new Vector4();

		var cameraVR = new ArrayCamera( [ cameraL, cameraR ] );
		cameraVR.layers.enable( 1 );
		cameraVR.layers.enable( 2 );

		//

		this.enabled = false;

		this.getController = function ( id ) {

			var controller = controllers[ id ];

			if ( controller === undefined ) {

				controller = new Group();
				controller.matrixAutoUpdate = false;
				controller.visible = false;

				controllers[ id ] = controller;

			}

			return controller;

		};

		this.getDevice = function () {

			return device;

		};

		this.setDevice = function ( value ) {

			if ( value !== undefined ) device = value;
			if ( value instanceof XRDevice ) gl.setCompatibleXRDevice( value );

		};

		//

		function onSessionEvent( event ) {

			var controller = controllers[ inputSources.indexOf( event.inputSource ) ];
			if ( controller ) controller.dispatchEvent( { type: event.type } );

		}

		function onSessionEnd() {

			renderer.setFramebuffer( null );
			animation.stop();

		}

		this.setSession = function ( value, options ) {

			session = value;

			if ( session !== null ) {

				session.addEventListener( 'select', onSessionEvent );
				session.addEventListener( 'selectstart', onSessionEvent );
				session.addEventListener( 'selectend', onSessionEvent );
				session.addEventListener( 'end', onSessionEnd );

				session.baseLayer = new XRWebGLLayer( session, gl );
				session.requestFrameOfReference( options.frameOfReferenceType ).then( function ( value ) {

					frameOfRef = value;

					renderer.setFramebuffer( session.baseLayer.framebuffer );

					animation.setContext( session );
					animation.start();

				} );

				//

				inputSources = session.getInputSources();

				session.addEventListener( 'inputsourceschange', function () {

					inputSources = session.getInputSources();
					console.log( inputSources );

				} );

			}

		};

		function updateCamera( camera, parent ) {

			if ( parent === null ) {

				camera.matrixWorld.copy( camera.matrix );

			} else {

				camera.matrixWorld.multiplyMatrices( parent.matrixWorld, camera.matrix );

			}

			camera.matrixWorldInverse.getInverse( camera.matrixWorld );

		}

		this.getCamera = function ( camera ) {

			if ( isPresenting() ) {

				var parent = camera.parent;
				var cameras = cameraVR.cameras;

				// apply camera.parent to cameraVR

				updateCamera( cameraVR, parent );

				for ( var i = 0; i < cameras.length; i ++ ) {

					updateCamera( cameras[ i ], parent );

				}

				// update camera and its children

				camera.matrixWorld.copy( cameraVR.matrixWorld );

				var children = camera.children;

				for ( var i = 0, l = children.length; i < l; i ++ ) {

					children[ i ].updateMatrixWorld( true );

				}

				return cameraVR;

			}

			return camera;

		};

		this.isPresenting = isPresenting;

		// Animation Loop

		var onAnimationFrameCallback = null;

		function onAnimationFrame( time, frame ) {

			pose = frame.getDevicePose( frameOfRef );

			if ( pose !== null ) {

				var layer = session.baseLayer;
				var views = frame.views;

				for ( var i = 0; i < views.length; i ++ ) {

					var view = views[ i ];
					var viewport = layer.getViewport( view );
					var viewMatrix = pose.getViewMatrix( view );

					var camera = cameraVR.cameras[ i ];
					camera.matrix.fromArray( viewMatrix ).getInverse( camera.matrix );
					camera.projectionMatrix.fromArray( view.projectionMatrix );
					camera.viewport.set( viewport.x, viewport.y, viewport.width, viewport.height );

					if ( i === 0 ) {

						cameraVR.matrix.copy( camera.matrix );

						// HACK (mrdoob)
						// https://github.com/w3c/webvr/issues/203

						cameraVR.projectionMatrix.copy( camera.projectionMatrix );

					}

				}

			}

			//

			for ( var i = 0; i < controllers.length; i ++ ) {

				var controller = controllers[ i ];

				var inputSource = inputSources[ i ];

				if ( inputSource ) {

					var inputPose = frame.getInputPose( inputSource, frameOfRef );

					if ( inputPose !== null ) {

						if ( 'targetRay' in inputPose ) {

							controller.matrix.elements = inputPose.targetRay.transformMatrix;

						} else if ( 'pointerMatrix' in inputPose ) {

							// DEPRECATED

							controller.matrix.elements = inputPose.pointerMatrix;

						}

						controller.matrix.decompose( controller.position, controller.rotation, controller.scale );
						controller.visible = true;

						continue;

					}

				}

				controller.visible = false;

			}

			if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );

		}

		var animation = new WebGLAnimation();
		animation.setAnimationLoop( onAnimationFrame );

		this.setAnimationLoop = function ( callback ) {

			onAnimationFrameCallback = callback;

		};

		this.dispose = function () {};

		// DEPRECATED

		this.getStandingMatrix = function () {

			console.warn( 'THREE.WebXRManager: getStandingMatrix() is no longer needed.' );
			return new THREE.Matrix4();

		};

		this.submitFrame = function () {};

	}

	/**
	 * @author supereggbert / http://www.paulbrunt.co.uk/
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author szimek / https://github.com/szimek/
	 * @author tschw
	 */

	function WebGLRenderer( parameters ) {

		//console.log( 'THREE.WebGLRenderer', REVISION );

		parameters = parameters || {};

		var _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ),
			_context = parameters.context !== undefined ? parameters.context : null,

			_alpha = parameters.alpha !== undefined ? parameters.alpha : false,
			_depth = parameters.depth !== undefined ? parameters.depth : true,
			_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
			_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
			_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
			_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,
			_powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default';

		var currentRenderList = null;
		var currentRenderState = null;

		// public properties

		this.domElement = _canvas;
		this.context = null;

		// clearing

		this.autoClear = true;
		this.autoClearColor = true;
		this.autoClearDepth = true;
		this.autoClearStencil = true;

		// scene graph

		this.sortObjects = true;

		// user-defined clipping

		this.clippingPlanes = [];
		this.localClippingEnabled = false;

		// physically based shading

		this.gammaFactor = 2.0;	// for backwards compatibility
		this.gammaInput = false;
		this.gammaOutput = false;

		// physical lights

		this.physicallyCorrectLights = false;

		// tone mapping

		this.toneMapping = LinearToneMapping;
		this.toneMappingExposure = 1.0;
		this.toneMappingWhitePoint = 1.0;

		// morphs

		this.maxMorphTargets = 8;
		this.maxMorphNormals = 4;

		// internal properties

		var _this = this,

			_isContextLost = false,

			// internal state cache

			_framebuffer = null,

			_currentRenderTarget = null,
			_currentFramebuffer = null,
			_currentMaterialId = - 1,

			// geometry and program caching

			_currentGeometryProgram = {
				geometry: null,
				program: null,
				wireframe: false
			},

			_currentCamera = null,
			_currentArrayCamera = null,

			_currentViewport = new Vector4(),
			_currentScissor = new Vector4(),
			_currentScissorTest = null,

			//

			_usedTextureUnits = 0,

			//

			_width = _canvas.width,
			_height = _canvas.height,

			_pixelRatio = 1,

			_viewport = new Vector4( 0, 0, _width, _height ),
			_scissor = new Vector4( 0, 0, _width, _height ),
			_scissorTest = false,

			// frustum

			_frustum = new Frustum(),

			// clipping

			_clipping = new WebGLClipping(),
			_clippingEnabled = false,
			_localClippingEnabled = false,

			// camera matrices cache

			_projScreenMatrix = new Matrix4(),

			_vector3 = new Vector3();

		function getTargetPixelRatio() {

			return _currentRenderTarget === null ? _pixelRatio : 1;

		}

		// initialize

		var _gl;

		try {

			var contextAttributes = {
				alpha: _alpha,
				depth: _depth,
				stencil: _stencil,
				antialias: _antialias,
				premultipliedAlpha: _premultipliedAlpha,
				preserveDrawingBuffer: _preserveDrawingBuffer,
				powerPreference: _powerPreference
			};

			// event listeners must be registered before WebGL context is created, see #12753

			_canvas.addEventListener( 'webglcontextlost', onContextLost, false );
			_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );

			_gl = _context || _canvas.getContext( 'webgl', contextAttributes ) || _canvas.getContext( 'experimental-webgl', contextAttributes );

			if ( _gl === null ) {

				if ( _canvas.getContext( 'webgl' ) !== null ) {

					throw new Error( 'Error creating WebGL context with your selected attributes.' );

				} else {

					throw new Error( 'Error creating WebGL context.' );

				}

			}

			// Some experimental-webgl implementations do not have getShaderPrecisionFormat

			if ( _gl.getShaderPrecisionFormat === undefined ) {

				_gl.getShaderPrecisionFormat = function () {

					return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };

				};

			}

		} catch ( error ) {

			console.error( 'THREE.WebGLRenderer: ' + error.message );

		}

		var extensions, capabilities, state, info;
		var properties, textures, attributes, geometries, objects;
		var programCache, renderLists, renderStates;

		var background, morphtargets, bufferRenderer, indexedBufferRenderer;

		var utils;

		function initGLContext() {

			extensions = new WebGLExtensions( _gl );

			capabilities = new WebGLCapabilities( _gl, extensions, parameters );

			if ( ! capabilities.isWebGL2 ) {

				extensions.get( 'WEBGL_depth_texture' );
				extensions.get( 'OES_texture_float' );
				extensions.get( 'OES_texture_half_float' );
				extensions.get( 'OES_texture_half_float_linear' );
				extensions.get( 'OES_standard_derivatives' );
				extensions.get( 'OES_element_index_uint' );
				extensions.get( 'ANGLE_instanced_arrays' );

			}

			extensions.get( 'OES_texture_float_linear' );

			utils = new WebGLUtils( _gl, extensions, capabilities );

			state = new WebGLState( _gl, extensions, utils, capabilities );
			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );

			info = new WebGLInfo( _gl );
			properties = new WebGLProperties();
			textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info );
			attributes = new WebGLAttributes( _gl );
			geometries = new WebGLGeometries( _gl, attributes, info );
			objects = new WebGLObjects( geometries, info );
			morphtargets = new WebGLMorphtargets( _gl );
			programCache = new WebGLPrograms( _this, extensions, capabilities );
			renderLists = new WebGLRenderLists();
			renderStates = new WebGLRenderStates();

			background = new WebGLBackground( _this, state, objects, _premultipliedAlpha );

			bufferRenderer = new WebGLBufferRenderer( _gl, extensions, info, capabilities );
			indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info, capabilities );

			info.programs = programCache.programs;

			_this.context = _gl;
			_this.capabilities = capabilities;
			_this.extensions = extensions;
			_this.properties = properties;
			_this.renderLists = renderLists;
			_this.state = state;
			_this.info = info;

		}

		initGLContext();

		// vr

		var vr = ( 'xr' in navigator ) ? new WebXRManager( _this ) : new WebVRManager( _this );

		this.vr = vr;

		// shadow map

		var shadowMap = new WebGLShadowMap( _this, objects, capabilities.maxTextureSize );

		this.shadowMap = shadowMap;

		// API

		this.getContext = function () {

			return _gl;

		};

		this.getContextAttributes = function () {

			return _gl.getContextAttributes();

		};

		this.forceContextLoss = function () {

			var extension = extensions.get( 'WEBGL_lose_context' );
			if ( extension ) extension.loseContext();

		};

		this.forceContextRestore = function () {

			var extension = extensions.get( 'WEBGL_lose_context' );
			if ( extension ) extension.restoreContext();

		};

		this.getPixelRatio = function () {

			return _pixelRatio;

		};

		this.setPixelRatio = function ( value ) {

			if ( value === undefined ) return;

			_pixelRatio = value;

			this.setSize( _width, _height, false );

		};

		this.getSize = function () {

			return {
				width: _width,
				height: _height
			};

		};

		this.setSize = function ( width, height, updateStyle ) {

			if ( vr.isPresenting() ) {

				console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' );
				return;

			}

			_width = width;
			_height = height;

			_canvas.width = width * _pixelRatio;
			_canvas.height = height * _pixelRatio;

			if ( updateStyle !== false ) {

				_canvas.style.width = width + 'px';
				_canvas.style.height = height + 'px';

			}

			this.setViewport( 0, 0, width, height );

		};

		this.getDrawingBufferSize = function () {

			return {
				width: _width * _pixelRatio,
				height: _height * _pixelRatio
			};

		};

		this.setDrawingBufferSize = function ( width, height, pixelRatio ) {

			_width = width;
			_height = height;

			_pixelRatio = pixelRatio;

			_canvas.width = width * pixelRatio;
			_canvas.height = height * pixelRatio;

			this.setViewport( 0, 0, width, height );

		};

		this.getCurrentViewport = function () {

			return _currentViewport;

		};

		this.setViewport = function ( x, y, width, height ) {

			_viewport.set( x, _height - y - height, width, height );
			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );

		};

		this.setScissor = function ( x, y, width, height ) {

			_scissor.set( x, _height - y - height, width, height );
			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );

		};

		this.setScissorTest = function ( boolean ) {

			state.setScissorTest( _scissorTest = boolean );

		};

		// Clearing

		this.getClearColor = function () {

			return background.getClearColor();

		};

		this.setClearColor = function () {

			background.setClearColor.apply( background, arguments );

		};

		this.getClearAlpha = function () {

			return background.getClearAlpha();

		};

		this.setClearAlpha = function () {

			background.setClearAlpha.apply( background, arguments );

		};

		this.clear = function ( color, depth, stencil ) {

			var bits = 0;

			if ( color === undefined || color ) bits |= _gl.COLOR_BUFFER_BIT;
			if ( depth === undefined || depth ) bits |= _gl.DEPTH_BUFFER_BIT;
			if ( stencil === undefined || stencil ) bits |= _gl.STENCIL_BUFFER_BIT;

			_gl.clear( bits );

		};

		this.clearColor = function () {

			this.clear( true, false, false );

		};

		this.clearDepth = function () {

			this.clear( false, true, false );

		};

		this.clearStencil = function () {

			this.clear( false, false, true );

		};

		this.clearTarget = function ( renderTarget, color, depth, stencil ) {

			this.setRenderTarget( renderTarget );
			this.clear( color, depth, stencil );

		};

		//

		this.dispose = function () {

			_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );
			_canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );

			renderLists.dispose();
			renderStates.dispose();
			properties.dispose();
			objects.dispose();

			vr.dispose();

			animation.stop();

		};

		// Events

		function onContextLost( event ) {

			event.preventDefault();

			console.log( 'THREE.WebGLRenderer: Context Lost.' );

			_isContextLost = true;

		}

		function onContextRestore( /* event */ ) {

			console.log( 'THREE.WebGLRenderer: Context Restored.' );

			_isContextLost = false;

			initGLContext();

		}

		function onMaterialDispose( event ) {

			var material = event.target;

			material.removeEventListener( 'dispose', onMaterialDispose );

			deallocateMaterial( material );

		}

		// Buffer deallocation

		function deallocateMaterial( material ) {

			releaseMaterialProgramReference( material );

			properties.remove( material );

		}


		function releaseMaterialProgramReference( material ) {

			var programInfo = properties.get( material ).program;

			material.program = undefined;

			if ( programInfo !== undefined ) {

				programCache.releaseProgram( programInfo );

			}

		}

		// Buffer rendering

		function renderObjectImmediate( object, program ) {

			object.render( function ( object ) {

				_this.renderBufferImmediate( object, program );

			} );

		}

		this.renderBufferImmediate = function ( object, program ) {

			state.initAttributes();

			var buffers = properties.get( object );

			if ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();
			if ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();
			if ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();
			if ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();

			var programAttributes = program.getAttributes();

			if ( object.hasPositions ) {

				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.position );
				_gl.bufferData( _gl.ARRAY_BUFFER, object.positionArray, _gl.DYNAMIC_DRAW );

				state.enableAttribute( programAttributes.position );
				_gl.vertexAttribPointer( programAttributes.position, 3, _gl.FLOAT, false, 0, 0 );

			}

			if ( object.hasNormals ) {

				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.normal );
				_gl.bufferData( _gl.ARRAY_BUFFER, object.normalArray, _gl.DYNAMIC_DRAW );

				state.enableAttribute( programAttributes.normal );
				_gl.vertexAttribPointer( programAttributes.normal, 3, _gl.FLOAT, false, 0, 0 );

			}

			if ( object.hasUvs ) {

				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.uv );
				_gl.bufferData( _gl.ARRAY_BUFFER, object.uvArray, _gl.DYNAMIC_DRAW );

				state.enableAttribute( programAttributes.uv );
				_gl.vertexAttribPointer( programAttributes.uv, 2, _gl.FLOAT, false, 0, 0 );

			}

			if ( object.hasColors ) {

				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.color );
				_gl.bufferData( _gl.ARRAY_BUFFER, object.colorArray, _gl.DYNAMIC_DRAW );

				state.enableAttribute( programAttributes.color );
				_gl.vertexAttribPointer( programAttributes.color, 3, _gl.FLOAT, false, 0, 0 );

			}

			state.disableUnusedAttributes();

			_gl.drawArrays( _gl.TRIANGLES, 0, object.count );

			object.count = 0;

		};

		this.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {

			var frontFaceCW = ( object.isMesh && object.normalMatrix.determinant() < 0 );

			state.setMaterial( material, frontFaceCW );

			var program = setProgram( camera, fog, material, object );

			var updateBuffers = false;

			if ( _currentGeometryProgram.geometry !== geometry.id ||
				_currentGeometryProgram.program !== program.id ||
				_currentGeometryProgram.wireframe !== ( material.wireframe === true ) ) {

				_currentGeometryProgram.geometry = geometry.id;
				_currentGeometryProgram.program = program.id;
				_currentGeometryProgram.wireframe = material.wireframe === true;
				updateBuffers = true;

			}

			if ( object.morphTargetInfluences ) {

				morphtargets.update( object, geometry, material, program );

				updateBuffers = true;

			}

			//

			var index = geometry.index;
			var position = geometry.attributes.position;
			var rangeFactor = 1;

			if ( material.wireframe === true ) {

				index = geometries.getWireframeAttribute( geometry );
				rangeFactor = 2;

			}

			var attribute;
			var renderer = bufferRenderer;

			if ( index !== null ) {

				attribute = attributes.get( index );

				renderer = indexedBufferRenderer;
				renderer.setIndex( attribute );

			}

			if ( updateBuffers ) {

				setupVertexAttributes( material, program, geometry );

				if ( index !== null ) {

					_gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, attribute.buffer );

				}

			}

			//

			var dataCount = Infinity;

			if ( index !== null ) {

				dataCount = index.count;

			} else if ( position !== undefined ) {

				dataCount = position.count;

			}

			var rangeStart = geometry.drawRange.start * rangeFactor;
			var rangeCount = geometry.drawRange.count * rangeFactor;

			var groupStart = group !== null ? group.start * rangeFactor : 0;
			var groupCount = group !== null ? group.count * rangeFactor : Infinity;

			var drawStart = Math.max( rangeStart, groupStart );
			var drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;

			var drawCount = Math.max( 0, drawEnd - drawStart + 1 );

			if ( drawCount === 0 ) return;

			//

			if ( object.isMesh ) {

				if ( material.wireframe === true ) {

					state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
					renderer.setMode( _gl.LINES );

				} else {

					switch ( object.drawMode ) {

						case TrianglesDrawMode:
							renderer.setMode( _gl.TRIANGLES );
							break;

						case TriangleStripDrawMode:
							renderer.setMode( _gl.TRIANGLE_STRIP );
							break;

						case TriangleFanDrawMode:
							renderer.setMode( _gl.TRIANGLE_FAN );
							break;

					}

				}


			} else if ( object.isLine ) {

				var lineWidth = material.linewidth;

				if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material

				state.setLineWidth( lineWidth * getTargetPixelRatio() );

				if ( object.isLineSegments ) {

					renderer.setMode( _gl.LINES );

				} else if ( object.isLineLoop ) {

					renderer.setMode( _gl.LINE_LOOP );

				} else {

					renderer.setMode( _gl.LINE_STRIP );

				}

			} else if ( object.isPoints ) {

				renderer.setMode( _gl.POINTS );

			} else if ( object.isSprite ) {

				renderer.setMode( _gl.TRIANGLES );

			}

			if ( geometry && geometry.isInstancedBufferGeometry ) {

				if ( geometry.maxInstancedCount > 0 ) {

					renderer.renderInstances( geometry, drawStart, drawCount );

				}

			} else {

				renderer.render( drawStart, drawCount );

			}

		};

		function setupVertexAttributes( material, program, geometry ) {

			if ( geometry && geometry.isInstancedBufferGeometry & ! capabilities.isWebGL2 ) {

				if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) {

					console.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
					return;

				}

			}

			state.initAttributes();

			var geometryAttributes = geometry.attributes;

			var programAttributes = program.getAttributes();

			var materialDefaultAttributeValues = material.defaultAttributeValues;

			for ( var name in programAttributes ) {

				var programAttribute = programAttributes[ name ];

				if ( programAttribute >= 0 ) {

					var geometryAttribute = geometryAttributes[ name ];

					if ( geometryAttribute !== undefined ) {

						var normalized = geometryAttribute.normalized;
						var size = geometryAttribute.itemSize;

						var attribute = attributes.get( geometryAttribute );

						// TODO Attribute may not be available on context restore

						if ( attribute === undefined ) continue;

						var buffer = attribute.buffer;
						var type = attribute.type;
						var bytesPerElement = attribute.bytesPerElement;

						if ( geometryAttribute.isInterleavedBufferAttribute ) {

							var data = geometryAttribute.data;
							var stride = data.stride;
							var offset = geometryAttribute.offset;

							if ( data && data.isInstancedInterleavedBuffer ) {

								state.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute );

								if ( geometry.maxInstancedCount === undefined ) {

									geometry.maxInstancedCount = data.meshPerAttribute * data.count;

								}

							} else {

								state.enableAttribute( programAttribute );

							}

							_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
							_gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * bytesPerElement, offset * bytesPerElement );

						} else {

							if ( geometryAttribute.isInstancedBufferAttribute ) {

								state.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute );

								if ( geometry.maxInstancedCount === undefined ) {

									geometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;

								}

							} else {

								state.enableAttribute( programAttribute );

							}

							_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
							_gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, 0 );

						}

					} else if ( materialDefaultAttributeValues !== undefined ) {

						var value = materialDefaultAttributeValues[ name ];

						if ( value !== undefined ) {

							switch ( value.length ) {

								case 2:
									_gl.vertexAttrib2fv( programAttribute, value );
									break;

								case 3:
									_gl.vertexAttrib3fv( programAttribute, value );
									break;

								case 4:
									_gl.vertexAttrib4fv( programAttribute, value );
									break;

								default:
									_gl.vertexAttrib1fv( programAttribute, value );

							}

						}

					}

				}

			}

			state.disableUnusedAttributes();

		}

		// Compile

		this.compile = function ( scene, camera ) {

			currentRenderState = renderStates.get( scene, camera );
			currentRenderState.init();

			scene.traverse( function ( object ) {

				if ( object.isLight ) {

					currentRenderState.pushLight( object );

					if ( object.castShadow ) {

						currentRenderState.pushShadow( object );

					}

				}

			} );

			currentRenderState.setupLights( camera );

			scene.traverse( function ( object ) {

				if ( object.material ) {

					if ( Array.isArray( object.material ) ) {

						for ( var i = 0; i < object.material.length; i ++ ) {

							initMaterial( object.material[ i ], scene.fog, object );

						}

					} else {

						initMaterial( object.material, scene.fog, object );

					}

				}

			} );

		};

		// Animation Loop

		var onAnimationFrameCallback = null;

		function onAnimationFrame( time ) {

			if ( vr.isPresenting() ) return;
			if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );

		}

		var animation = new WebGLAnimation();
		animation.setAnimationLoop( onAnimationFrame );

		if ( typeof window !== 'undefined' ) animation.setContext( window );

		this.setAnimationLoop = function ( callback ) {

			onAnimationFrameCallback = callback;
			vr.setAnimationLoop( callback );

			animation.start();

		};

		// Rendering

		this.render = function ( scene, camera, renderTarget, forceClear ) {

			if ( ! ( camera && camera.isCamera ) ) {

				console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
				return;

			}

			if ( _isContextLost ) return;

			// reset caching for this frame

			_currentGeometryProgram.geometry = null;
			_currentGeometryProgram.program = null;
			_currentGeometryProgram.wireframe = false;
			_currentMaterialId = - 1;
			_currentCamera = null;

			// update scene graph

			if ( scene.autoUpdate === true ) scene.updateMatrixWorld();

			// update camera matrices and frustum

			if ( camera.parent === null ) camera.updateMatrixWorld();

			if ( vr.enabled ) {

				camera = vr.getCamera( camera );

			}

			//

			currentRenderState = renderStates.get( scene, camera );
			currentRenderState.init();

			scene.onBeforeRender( _this, scene, camera, renderTarget );

			_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
			_frustum.setFromMatrix( _projScreenMatrix );

			_localClippingEnabled = this.localClippingEnabled;
			_clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera );

			currentRenderList = renderLists.get( scene, camera );
			currentRenderList.init();

			projectObject( scene, camera, _this.sortObjects );

			if ( _this.sortObjects === true ) {

				currentRenderList.sort();

			}

			//

			if ( _clippingEnabled ) _clipping.beginShadows();

			var shadowsArray = currentRenderState.state.shadowsArray;

			shadowMap.render( shadowsArray, scene, camera );

			currentRenderState.setupLights( camera );

			if ( _clippingEnabled ) _clipping.endShadows();

			//

			if ( this.info.autoReset ) this.info.reset();

			if ( renderTarget === undefined ) {

				renderTarget = null;

			}

			this.setRenderTarget( renderTarget );

			//

			background.render( currentRenderList, scene, camera, forceClear );

			// render scene

			var opaqueObjects = currentRenderList.opaque;
			var transparentObjects = currentRenderList.transparent;

			if ( scene.overrideMaterial ) {

				var overrideMaterial = scene.overrideMaterial;

				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera, overrideMaterial );
				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera, overrideMaterial );

			} else {

				// opaque pass (front-to-back order)

				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera );

				// transparent pass (back-to-front order)

				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera );

			}

			// Generate mipmap if we're using any kind of mipmap filtering

			if ( renderTarget ) {

				textures.updateRenderTargetMipmap( renderTarget );

			}

			// Ensure depth buffer writing is enabled so it can be cleared on next render

			state.buffers.depth.setTest( true );
			state.buffers.depth.setMask( true );
			state.buffers.color.setMask( true );

			state.setPolygonOffset( false );

			scene.onAfterRender( _this, scene, camera );

			if ( vr.enabled ) {

				vr.submitFrame();

			}

			// _gl.finish();

			currentRenderList = null;
			currentRenderState = null;

		};

		/*
		// TODO Duplicated code (Frustum)

		var _sphere = new Sphere();

		function isObjectViewable( object ) {

			var geometry = object.geometry;

			if ( geometry.boundingSphere === null )
				geometry.computeBoundingSphere();

			_sphere.copy( geometry.boundingSphere ).
			applyMatrix4( object.matrixWorld );

			return isSphereViewable( _sphere );

		}

		function isSpriteViewable( sprite ) {

			_sphere.center.set( 0, 0, 0 );
			_sphere.radius = 0.7071067811865476;
			_sphere.applyMatrix4( sprite.matrixWorld );

			return isSphereViewable( _sphere );

		}

		function isSphereViewable( sphere ) {

			if ( ! _frustum.intersectsSphere( sphere ) ) return false;

			var numPlanes = _clipping.numPlanes;

			if ( numPlanes === 0 ) return true;

			var planes = _this.clippingPlanes,

				center = sphere.center,
				negRad = - sphere.radius,
				i = 0;

			do {

				// out when deeper than radius in the negative halfspace
				if ( planes[ i ].distanceToPoint( center ) < negRad ) return false;

			} while ( ++ i !== numPlanes );

			return true;

		}
		*/

		function projectObject( object, camera, sortObjects ) {

			if ( object.visible === false ) return;

			var visible = object.layers.test( camera.layers );

			if ( visible ) {

				if ( object.isLight ) {

					currentRenderState.pushLight( object );

					if ( object.castShadow ) {

						currentRenderState.pushShadow( object );

					}

				} else if ( object.isSprite ) {

					if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {

						if ( sortObjects ) {

							_vector3.setFromMatrixPosition( object.matrixWorld )
								.applyMatrix4( _projScreenMatrix );

						}

						var geometry = objects.update( object );
						var material = object.material;

						currentRenderList.push( object, geometry, material, _vector3.z, null );

					}

				} else if ( object.isImmediateRenderObject ) {

					if ( sortObjects ) {

						_vector3.setFromMatrixPosition( object.matrixWorld )
							.applyMatrix4( _projScreenMatrix );

					}

					currentRenderList.push( object, null, object.material, _vector3.z, null );

				} else if ( object.isMesh || object.isLine || object.isPoints ) {

					if ( object.isSkinnedMesh ) {

						object.skeleton.update();

					}

					if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {

						if ( sortObjects ) {

							_vector3.setFromMatrixPosition( object.matrixWorld )
								.applyMatrix4( _projScreenMatrix );

						}

						var geometry = objects.update( object );
						var material = object.material;

						if ( Array.isArray( material ) ) {

							var groups = geometry.groups;

							for ( var i = 0, l = groups.length; i < l; i ++ ) {

								var group = groups[ i ];
								var groupMaterial = material[ group.materialIndex ];

								if ( groupMaterial && groupMaterial.visible ) {

									currentRenderList.push( object, geometry, groupMaterial, _vector3.z, group );

								}

							}

						} else if ( material.visible ) {

							currentRenderList.push( object, geometry, material, _vector3.z, null );

						}

					}

				}

			}

			var children = object.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				projectObject( children[ i ], camera, sortObjects );

			}

		}

		function renderObjects( renderList, scene, camera, overrideMaterial ) {

			for ( var i = 0, l = renderList.length; i < l; i ++ ) {

				var renderItem = renderList[ i ];

				var object = renderItem.object;
				var geometry = renderItem.geometry;
				var material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;
				var group = renderItem.group;

				if ( camera.isArrayCamera ) {

					_currentArrayCamera = camera;

					var cameras = camera.cameras;

					for ( var j = 0, jl = cameras.length; j < jl; j ++ ) {

						var camera2 = cameras[ j ];

						if ( object.layers.test( camera2.layers ) ) {

							if ( 'viewport' in camera2 ) { // XR

								state.viewport( _currentViewport.copy( camera2.viewport ) );

							} else {

								var bounds = camera2.bounds;

								var x = bounds.x * _width;
								var y = bounds.y * _height;
								var width = bounds.z * _width;
								var height = bounds.w * _height;

								state.viewport( _currentViewport.set( x, y, width, height ).multiplyScalar( _pixelRatio ) );

							}

							renderObject( object, scene, camera2, geometry, material, group );

						}

					}

				} else {

					_currentArrayCamera = null;

					renderObject( object, scene, camera, geometry, material, group );

				}

			}

		}

		function renderObject( object, scene, camera, geometry, material, group ) {

			object.onBeforeRender( _this, scene, camera, geometry, material, group );
			currentRenderState = renderStates.get( scene, _currentArrayCamera || camera );

			object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
			object.normalMatrix.getNormalMatrix( object.modelViewMatrix );

			if ( object.isImmediateRenderObject ) {

				state.setMaterial( material );

				var program = setProgram( camera, scene.fog, material, object );

				_currentGeometryProgram.geometry = null;
				_currentGeometryProgram.program = null;
				_currentGeometryProgram.wireframe = false;

				renderObjectImmediate( object, program );

			} else {

				_this.renderBufferDirect( camera, scene.fog, geometry, material, object, group );

			}

			object.onAfterRender( _this, scene, camera, geometry, material, group );
			currentRenderState = renderStates.get( scene, _currentArrayCamera || camera );

		}

		function initMaterial( material, fog, object ) {

			var materialProperties = properties.get( material );

			var lights = currentRenderState.state.lights;
			var shadowsArray = currentRenderState.state.shadowsArray;

			var lightsHash = materialProperties.lightsHash;
			var lightsStateHash = lights.state.hash;

			var parameters = programCache.getParameters(
				material, lights.state, shadowsArray, fog, _clipping.numPlanes, _clipping.numIntersection, object );

			var code = programCache.getProgramCode( material, parameters );

			var program = materialProperties.program;
			var programChange = true;

			if ( program === undefined ) {

				// new material
				material.addEventListener( 'dispose', onMaterialDispose );

			} else if ( program.code !== code ) {

				// changed glsl or parameters
				releaseMaterialProgramReference( material );

			} else if ( lightsHash.stateID !== lightsStateHash.stateID ||
				lightsHash.directionalLength !== lightsStateHash.directionalLength ||
				lightsHash.pointLength !== lightsStateHash.pointLength ||
				lightsHash.spotLength !== lightsStateHash.spotLength ||
				lightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||
				lightsHash.hemiLength !== lightsStateHash.hemiLength ||
				lightsHash.shadowsLength !== lightsStateHash.shadowsLength ) {

				lightsHash.stateID = lightsStateHash.stateID;
				lightsHash.directionalLength = lightsStateHash.directionalLength;
				lightsHash.pointLength = lightsStateHash.pointLength;
				lightsHash.spotLength = lightsStateHash.spotLength;
				lightsHash.rectAreaLength = lightsStateHash.rectAreaLength;
				lightsHash.hemiLength = lightsStateHash.hemiLength;
				lightsHash.shadowsLength = lightsStateHash.shadowsLength;

				programChange = false;

			} else if ( parameters.shaderID !== undefined ) {

				// same glsl and uniform list
				return;

			} else {

				// only rebuild uniform list
				programChange = false;

			}

			if ( programChange ) {

				if ( parameters.shaderID ) {

					var shader = ShaderLib[ parameters.shaderID ];

					materialProperties.shader = {
						name: material.type,
						uniforms: UniformsUtils.clone( shader.uniforms ),
						vertexShader: shader.vertexShader,
						fragmentShader: shader.fragmentShader
					};

				} else {

					materialProperties.shader = {
						name: material.type,
						uniforms: material.uniforms,
						vertexShader: material.vertexShader,
						fragmentShader: material.fragmentShader
					};

				}

				material.onBeforeCompile( materialProperties.shader, _this );

				// Computing code again as onBeforeCompile may have changed the shaders
				code = programCache.getProgramCode( material, parameters );

				program = programCache.acquireProgram( material, materialProperties.shader, parameters, code );

				materialProperties.program = program;
				material.program = program;

			}

			var programAttributes = program.getAttributes();

			if ( material.morphTargets ) {

				material.numSupportedMorphTargets = 0;

				for ( var i = 0; i < _this.maxMorphTargets; i ++ ) {

					if ( programAttributes[ 'morphTarget' + i ] >= 0 ) {

						material.numSupportedMorphTargets ++;

					}

				}

			}

			if ( material.morphNormals ) {

				material.numSupportedMorphNormals = 0;

				for ( var i = 0; i < _this.maxMorphNormals; i ++ ) {

					if ( programAttributes[ 'morphNormal' + i ] >= 0 ) {

						material.numSupportedMorphNormals ++;

					}

				}

			}

			var uniforms = materialProperties.shader.uniforms;

			if ( ! material.isShaderMaterial &&
				! material.isRawShaderMaterial ||
				material.clipping === true ) {

				materialProperties.numClippingPlanes = _clipping.numPlanes;
				materialProperties.numIntersection = _clipping.numIntersection;
				uniforms.clippingPlanes = _clipping.uniform;

			}

			materialProperties.fog = fog;

			// store the light setup it was created for
			if ( lightsHash === undefined ) {

				materialProperties.lightsHash = lightsHash = {};

			}

			lightsHash.stateID = lightsStateHash.stateID;
			lightsHash.directionalLength = lightsStateHash.directionalLength;
			lightsHash.pointLength = lightsStateHash.pointLength;
			lightsHash.spotLength = lightsStateHash.spotLength;
			lightsHash.rectAreaLength = lightsStateHash.rectAreaLength;
			lightsHash.hemiLength = lightsStateHash.hemiLength;
			lightsHash.shadowsLength = lightsStateHash.shadowsLength;

			if ( material.lights ) {

				// wire up the material to this renderer's lighting state

				uniforms.ambientLightColor.value = lights.state.ambient;
				uniforms.directionalLights.value = lights.state.directional;
				uniforms.spotLights.value = lights.state.spot;
				uniforms.rectAreaLights.value = lights.state.rectArea;
				uniforms.pointLights.value = lights.state.point;
				uniforms.hemisphereLights.value = lights.state.hemi;

				uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
				uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
				uniforms.spotShadowMap.value = lights.state.spotShadowMap;
				uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;
				uniforms.pointShadowMap.value = lights.state.pointShadowMap;
				uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;
				// TODO (abelnation): add area lights shadow info to uniforms

			}

			var progUniforms = materialProperties.program.getUniforms(),
				uniformsList =
					WebGLUniforms.seqWithValue( progUniforms.seq, uniforms );

			materialProperties.uniformsList = uniformsList;

		}

		function setProgram( camera, fog, material, object ) {

			_usedTextureUnits = 0;

			var materialProperties = properties.get( material );
			var lights = currentRenderState.state.lights;

			var lightsHash = materialProperties.lightsHash;
			var lightsStateHash = lights.state.hash;

			if ( _clippingEnabled ) {

				if ( _localClippingEnabled || camera !== _currentCamera ) {

					var useCache =
						camera === _currentCamera &&
						material.id === _currentMaterialId;

					// we might want to call this function with some ClippingGroup
					// object instead of the material, once it becomes feasible
					// (#8465, #8379)
					_clipping.setState(
						material.clippingPlanes, material.clipIntersection, material.clipShadows,
						camera, materialProperties, useCache );

				}

			}

			if ( material.needsUpdate === false ) {

				if ( materialProperties.program === undefined ) {

					material.needsUpdate = true;

				} else if ( material.fog && materialProperties.fog !== fog ) {

					material.needsUpdate = true;

				} else if ( material.lights && ( lightsHash.stateID !== lightsStateHash.stateID ||
					lightsHash.directionalLength !== lightsStateHash.directionalLength ||
					lightsHash.pointLength !== lightsStateHash.pointLength ||
					lightsHash.spotLength !== lightsStateHash.spotLength ||
					lightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||
					lightsHash.hemiLength !== lightsStateHash.hemiLength ||
					lightsHash.shadowsLength !== lightsStateHash.shadowsLength ) ) {

					material.needsUpdate = true;

				} else if ( materialProperties.numClippingPlanes !== undefined &&
					( materialProperties.numClippingPlanes !== _clipping.numPlanes ||
					materialProperties.numIntersection !== _clipping.numIntersection ) ) {

					material.needsUpdate = true;

				}

			}

			if ( material.needsUpdate ) {

				initMaterial( material, fog, object );
				material.needsUpdate = false;

			}

			var refreshProgram = false;
			var refreshMaterial = false;
			var refreshLights = false;

			var program = materialProperties.program,
				p_uniforms = program.getUniforms(),
				m_uniforms = materialProperties.shader.uniforms;

			if ( state.useProgram( program.program ) ) {

				refreshProgram = true;
				refreshMaterial = true;
				refreshLights = true;

			}

			if ( material.id !== _currentMaterialId ) {

				_currentMaterialId = material.id;

				refreshMaterial = true;

			}

			if ( refreshProgram || camera !== _currentCamera ) {

				p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );

				if ( capabilities.logarithmicDepthBuffer ) {

					p_uniforms.setValue( _gl, 'logDepthBufFC',
						2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );

				}

				// Avoid unneeded uniform updates per ArrayCamera's sub-camera

				if ( _currentCamera !== ( _currentArrayCamera || camera ) ) {

					_currentCamera = ( _currentArrayCamera || camera );

					// lighting uniforms depend on the camera so enforce an update
					// now, in case this material supports lights - or later, when
					// the next material that does gets activated:

					refreshMaterial = true;		// set to true on material change
					refreshLights = true;		// remains set until update done

				}

				// load material specific uniforms
				// (shader material also gets them for the sake of genericity)

				if ( material.isShaderMaterial ||
					material.isMeshPhongMaterial ||
					material.isMeshStandardMaterial ||
					material.envMap ) {

					var uCamPos = p_uniforms.map.cameraPosition;

					if ( uCamPos !== undefined ) {

						uCamPos.setValue( _gl,
							_vector3.setFromMatrixPosition( camera.matrixWorld ) );

					}

				}

				if ( material.isMeshPhongMaterial ||
					material.isMeshLambertMaterial ||
					material.isMeshBasicMaterial ||
					material.isMeshStandardMaterial ||
					material.isShaderMaterial ||
					material.skinning ) {

					p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );

				}

			}

			// skinning uniforms must be set even if material didn't change
			// auto-setting of texture unit for bone texture must go before other textures
			// not sure why, but otherwise weird things happen

			if ( material.skinning ) {

				p_uniforms.setOptional( _gl, object, 'bindMatrix' );
				p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );

				var skeleton = object.skeleton;

				if ( skeleton ) {

					var bones = skeleton.bones;

					if ( capabilities.floatVertexTextures ) {

						if ( skeleton.boneTexture === undefined ) {

							// layout (1 matrix = 4 pixels)
							//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
							//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
							//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
							//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
							//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)


							var size = Math.sqrt( bones.length * 4 ); // 4 pixels needed for 1 matrix
							size = _Math.ceilPowerOfTwo( size );
							size = Math.max( size, 4 );

							var boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel
							boneMatrices.set( skeleton.boneMatrices ); // copy current values

							var boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );
							boneTexture.needsUpdate = true;

							skeleton.boneMatrices = boneMatrices;
							skeleton.boneTexture = boneTexture;
							skeleton.boneTextureSize = size;

						}

						p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture );
						p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );

					} else {

						p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );

					}

				}

			}

			if ( refreshMaterial ) {

				p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );
				p_uniforms.setValue( _gl, 'toneMappingWhitePoint', _this.toneMappingWhitePoint );

				if ( material.lights ) {

					// the current material requires lighting info

					// note: all lighting uniforms are always set correctly
					// they simply reference the renderer's state for their
					// values
					//
					// use the current material's .needsUpdate flags to set
					// the GL state when required

					markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );

				}

				// refresh uniforms common to several materials

				if ( fog && material.fog ) {

					refreshUniformsFog( m_uniforms, fog );

				}

				if ( material.isMeshBasicMaterial ) {

					refreshUniformsCommon( m_uniforms, material );

				} else if ( material.isMeshLambertMaterial ) {

					refreshUniformsCommon( m_uniforms, material );
					refreshUniformsLambert( m_uniforms, material );

				} else if ( material.isMeshPhongMaterial ) {

					refreshUniformsCommon( m_uniforms, material );

					if ( material.isMeshToonMaterial ) {

						refreshUniformsToon( m_uniforms, material );

					} else {

						refreshUniformsPhong( m_uniforms, material );

					}

				} else if ( material.isMeshStandardMaterial ) {

					refreshUniformsCommon( m_uniforms, material );

					if ( material.isMeshPhysicalMaterial ) {

						refreshUniformsPhysical( m_uniforms, material );

					} else {

						refreshUniformsStandard( m_uniforms, material );

					}

				} else if ( material.isMeshDepthMaterial ) {

					refreshUniformsCommon( m_uniforms, material );
					refreshUniformsDepth( m_uniforms, material );

				} else if ( material.isMeshDistanceMaterial ) {

					refreshUniformsCommon( m_uniforms, material );
					refreshUniformsDistance( m_uniforms, material );

				} else if ( material.isMeshNormalMaterial ) {

					refreshUniformsCommon( m_uniforms, material );
					refreshUniformsNormal( m_uniforms, material );

				} else if ( material.isLineBasicMaterial ) {

					refreshUniformsLine( m_uniforms, material );

					if ( material.isLineDashedMaterial ) {

						refreshUniformsDash( m_uniforms, material );

					}

				} else if ( material.isPointsMaterial ) {

					refreshUniformsPoints( m_uniforms, material );

				} else if ( material.isSpriteMaterial ) {

					refreshUniformsSprites( m_uniforms, material );

				} else if ( material.isShadowMaterial ) {

					m_uniforms.color.value = material.color;
					m_uniforms.opacity.value = material.opacity;

				}

				// RectAreaLight Texture
				// TODO (mrdoob): Find a nicer implementation

				if ( m_uniforms.ltc_1 !== undefined ) m_uniforms.ltc_1.value = UniformsLib.LTC_1;
				if ( m_uniforms.ltc_2 !== undefined ) m_uniforms.ltc_2.value = UniformsLib.LTC_2;

				WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, _this );

			}

			if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {

				WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, _this );
				material.uniformsNeedUpdate = false;

			}

			if ( material.isSpriteMaterial ) {

				p_uniforms.setValue( _gl, 'center', object.center );

			}

			// common matrices

			p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );
			p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );
			p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );

			return program;

		}

		// Uniforms (refresh uniforms objects)

		function refreshUniformsCommon( uniforms, material ) {

			uniforms.opacity.value = material.opacity;

			if ( material.color ) {

				uniforms.diffuse.value = material.color;

			}

			if ( material.emissive ) {

				uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );

			}

			if ( material.map ) {

				uniforms.map.value = material.map;

			}

			if ( material.alphaMap ) {

				uniforms.alphaMap.value = material.alphaMap;

			}

			if ( material.specularMap ) {

				uniforms.specularMap.value = material.specularMap;

			}

			if ( material.envMap ) {

				uniforms.envMap.value = material.envMap;

				// don't flip CubeTexture envMaps, flip everything else:
				//  WebGLRenderTargetCube will be flipped for backwards compatibility
				//  WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture
				// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future
				uniforms.flipEnvMap.value = ( ! ( material.envMap && material.envMap.isCubeTexture ) ) ? 1 : - 1;

				uniforms.reflectivity.value = material.reflectivity;
				uniforms.refractionRatio.value = material.refractionRatio;

				uniforms.maxMipLevel.value = properties.get( material.envMap ).__maxMipLevel;

			}

			if ( material.lightMap ) {

				uniforms.lightMap.value = material.lightMap;
				uniforms.lightMapIntensity.value = material.lightMapIntensity;

			}

			if ( material.aoMap ) {

				uniforms.aoMap.value = material.aoMap;
				uniforms.aoMapIntensity.value = material.aoMapIntensity;

			}

			// uv repeat and offset setting priorities
			// 1. color map
			// 2. specular map
			// 3. normal map
			// 4. bump map
			// 5. alpha map
			// 6. emissive map

			var uvScaleMap;

			if ( material.map ) {

				uvScaleMap = material.map;

			} else if ( material.specularMap ) {

				uvScaleMap = material.specularMap;

			} else if ( material.displacementMap ) {

				uvScaleMap = material.displacementMap;

			} else if ( material.normalMap ) {

				uvScaleMap = material.normalMap;

			} else if ( material.bumpMap ) {

				uvScaleMap = material.bumpMap;

			} else if ( material.roughnessMap ) {

				uvScaleMap = material.roughnessMap;

			} else if ( material.metalnessMap ) {

				uvScaleMap = material.metalnessMap;

			} else if ( material.alphaMap ) {

				uvScaleMap = material.alphaMap;

			} else if ( material.emissiveMap ) {

				uvScaleMap = material.emissiveMap;

			}

			if ( uvScaleMap !== undefined ) {

				// backwards compatibility
				if ( uvScaleMap.isWebGLRenderTarget ) {

					uvScaleMap = uvScaleMap.texture;

				}

				if ( uvScaleMap.matrixAutoUpdate === true ) {

					uvScaleMap.updateMatrix();

				}

				uniforms.uvTransform.value.copy( uvScaleMap.matrix );

			}

		}

		function refreshUniformsLine( uniforms, material ) {

			uniforms.diffuse.value = material.color;
			uniforms.opacity.value = material.opacity;

		}

		function refreshUniformsDash( uniforms, material ) {

			uniforms.dashSize.value = material.dashSize;
			uniforms.totalSize.value = material.dashSize + material.gapSize;
			uniforms.scale.value = material.scale;

		}

		function refreshUniformsPoints( uniforms, material ) {

			uniforms.diffuse.value = material.color;
			uniforms.opacity.value = material.opacity;
			uniforms.size.value = material.size * _pixelRatio;
			uniforms.scale.value = _height * 0.5;

			uniforms.map.value = material.map;

			if ( material.map !== null ) {

				if ( material.map.matrixAutoUpdate === true ) {

					material.map.updateMatrix();

				}

				uniforms.uvTransform.value.copy( material.map.matrix );

			}

		}

		function refreshUniformsSprites( uniforms, material ) {

			uniforms.diffuse.value = material.color;
			uniforms.opacity.value = material.opacity;
			uniforms.rotation.value = material.rotation;
			uniforms.map.value = material.map;

			if ( material.map !== null ) {

				if ( material.map.matrixAutoUpdate === true ) {

					material.map.updateMatrix();

				}

				uniforms.uvTransform.value.copy( material.map.matrix );

			}

		}

		function refreshUniformsFog( uniforms, fog ) {

			uniforms.fogColor.value = fog.color;

			if ( fog.isFog ) {

				uniforms.fogNear.value = fog.near;
				uniforms.fogFar.value = fog.far;

			} else if ( fog.isFogExp2 ) {

				uniforms.fogDensity.value = fog.density;

			}

		}

		function refreshUniformsLambert( uniforms, material ) {

			if ( material.emissiveMap ) {

				uniforms.emissiveMap.value = material.emissiveMap;

			}

		}

		function refreshUniformsPhong( uniforms, material ) {

			uniforms.specular.value = material.specular;
			uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )

			if ( material.emissiveMap ) {

				uniforms.emissiveMap.value = material.emissiveMap;

			}

			if ( material.bumpMap ) {

				uniforms.bumpMap.value = material.bumpMap;
				uniforms.bumpScale.value = material.bumpScale;
				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;

			}

			if ( material.normalMap ) {

				uniforms.normalMap.value = material.normalMap;
				uniforms.normalScale.value.copy( material.normalScale );
				if ( material.side === BackSide ) uniforms.normalScale.value.negate();

			}

			if ( material.displacementMap ) {

				uniforms.displacementMap.value = material.displacementMap;
				uniforms.displacementScale.value = material.displacementScale;
				uniforms.displacementBias.value = material.displacementBias;

			}

		}

		function refreshUniformsToon( uniforms, material ) {

			refreshUniformsPhong( uniforms, material );

			if ( material.gradientMap ) {

				uniforms.gradientMap.value = material.gradientMap;

			}

		}

		function refreshUniformsStandard( uniforms, material ) {

			uniforms.roughness.value = material.roughness;
			uniforms.metalness.value = material.metalness;

			if ( material.roughnessMap ) {

				uniforms.roughnessMap.value = material.roughnessMap;

			}

			if ( material.metalnessMap ) {

				uniforms.metalnessMap.value = material.metalnessMap;

			}

			if ( material.emissiveMap ) {

				uniforms.emissiveMap.value = material.emissiveMap;

			}

			if ( material.bumpMap ) {

				uniforms.bumpMap.value = material.bumpMap;
				uniforms.bumpScale.value = material.bumpScale;
				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;

			}

			if ( material.normalMap ) {

				uniforms.normalMap.value = material.normalMap;
				uniforms.normalScale.value.copy( material.normalScale );
				if ( material.side === BackSide ) uniforms.normalScale.value.negate();

			}

			if ( material.displacementMap ) {

				uniforms.displacementMap.value = material.displacementMap;
				uniforms.displacementScale.value = material.displacementScale;
				uniforms.displacementBias.value = material.displacementBias;

			}

			if ( material.envMap ) {

				//uniforms.envMap.value = material.envMap; // part of uniforms common
				uniforms.envMapIntensity.value = material.envMapIntensity;

			}

		}

		function refreshUniformsPhysical( uniforms, material ) {

			refreshUniformsStandard( uniforms, material );

			uniforms.reflectivity.value = material.reflectivity; // also part of uniforms common

			uniforms.clearCoat.value = material.clearCoat;
			uniforms.clearCoatRoughness.value = material.clearCoatRoughness;

		}

		function refreshUniformsDepth( uniforms, material ) {

			if ( material.displacementMap ) {

				uniforms.displacementMap.value = material.displacementMap;
				uniforms.displacementScale.value = material.displacementScale;
				uniforms.displacementBias.value = material.displacementBias;

			}

		}

		function refreshUniformsDistance( uniforms, material ) {

			if ( material.displacementMap ) {

				uniforms.displacementMap.value = material.displacementMap;
				uniforms.displacementScale.value = material.displacementScale;
				uniforms.displacementBias.value = material.displacementBias;

			}

			uniforms.referencePosition.value.copy( material.referencePosition );
			uniforms.nearDistance.value = material.nearDistance;
			uniforms.farDistance.value = material.farDistance;

		}

		function refreshUniformsNormal( uniforms, material ) {

			if ( material.bumpMap ) {

				uniforms.bumpMap.value = material.bumpMap;
				uniforms.bumpScale.value = material.bumpScale;
				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;

			}

			if ( material.normalMap ) {

				uniforms.normalMap.value = material.normalMap;
				uniforms.normalScale.value.copy( material.normalScale );
				if ( material.side === BackSide ) uniforms.normalScale.value.negate();

			}

			if ( material.displacementMap ) {

				uniforms.displacementMap.value = material.displacementMap;
				uniforms.displacementScale.value = material.displacementScale;
				uniforms.displacementBias.value = material.displacementBias;

			}

		}

		// If uniforms are marked as clean, they don't need to be loaded to the GPU.

		function markUniformsLightsNeedsUpdate( uniforms, value ) {

			uniforms.ambientLightColor.needsUpdate = value;

			uniforms.directionalLights.needsUpdate = value;
			uniforms.pointLights.needsUpdate = value;
			uniforms.spotLights.needsUpdate = value;
			uniforms.rectAreaLights.needsUpdate = value;
			uniforms.hemisphereLights.needsUpdate = value;

		}

		// Textures

		function allocTextureUnit() {

			var textureUnit = _usedTextureUnits;

			if ( textureUnit >= capabilities.maxTextures ) {

				console.warn( 'THREE.WebGLRenderer: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );

			}

			_usedTextureUnits += 1;

			return textureUnit;

		}

		this.allocTextureUnit = allocTextureUnit;

		// this.setTexture2D = setTexture2D;
		this.setTexture2D = ( function () {

			var warned = false;

			// backwards compatibility: peel texture.texture
			return function setTexture2D( texture, slot ) {

				if ( texture && texture.isWebGLRenderTarget ) {

					if ( ! warned ) {

						console.warn( "THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead." );
						warned = true;

					}

					texture = texture.texture;

				}

				textures.setTexture2D( texture, slot );

			};

		}() );

		this.setTexture = ( function () {

			var warned = false;

			return function setTexture( texture, slot ) {

				if ( ! warned ) {

					console.warn( "THREE.WebGLRenderer: .setTexture is deprecated, use setTexture2D instead." );
					warned = true;

				}

				textures.setTexture2D( texture, slot );

			};

		}() );

		this.setTextureCube = ( function () {

			var warned = false;

			return function setTextureCube( texture, slot ) {

				// backwards compatibility: peel texture.texture
				if ( texture && texture.isWebGLRenderTargetCube ) {

					if ( ! warned ) {

						console.warn( "THREE.WebGLRenderer.setTextureCube: don't use cube render targets as textures. Use their .texture property instead." );
						warned = true;

					}

					texture = texture.texture;

				}

				// currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture
				// TODO: unify these code paths
				if ( ( texture && texture.isCubeTexture ) ||
					( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {

					// CompressedTexture can have Array in image :/

					// this function alone should take care of cube textures
					textures.setTextureCube( texture, slot );

				} else {

					// assumed: texture property of THREE.WebGLRenderTargetCube

					textures.setTextureCubeDynamic( texture, slot );

				}

			};

		}() );

		//

		this.setFramebuffer = function ( value ) {

			_framebuffer = value;

		};

		this.getRenderTarget = function () {

			return _currentRenderTarget;

		};

		this.setRenderTarget = function ( renderTarget ) {

			_currentRenderTarget = renderTarget;

			if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {

				textures.setupRenderTarget( renderTarget );

			}

			var framebuffer = _framebuffer;
			var isCube = false;

			if ( renderTarget ) {

				var __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;

				if ( renderTarget.isWebGLRenderTargetCube ) {

					framebuffer = __webglFramebuffer[ renderTarget.activeCubeFace ];
					isCube = true;

				} else {

					framebuffer = __webglFramebuffer;

				}

				_currentViewport.copy( renderTarget.viewport );
				_currentScissor.copy( renderTarget.scissor );
				_currentScissorTest = renderTarget.scissorTest;

			} else {

				_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio );
				_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio );
				_currentScissorTest = _scissorTest;

			}

			if ( _currentFramebuffer !== framebuffer ) {

				_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
				_currentFramebuffer = framebuffer;

			}

			state.viewport( _currentViewport );
			state.scissor( _currentScissor );
			state.setScissorTest( _currentScissorTest );

			if ( isCube ) {

				var textureProperties = properties.get( renderTarget.texture );
				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + renderTarget.activeCubeFace, textureProperties.__webglTexture, renderTarget.activeMipMapLevel );

			}

		};

		this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) {

			if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {

				console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
				return;

			}

			var framebuffer = properties.get( renderTarget ).__webglFramebuffer;

			if ( framebuffer ) {

				var restore = false;

				if ( framebuffer !== _currentFramebuffer ) {

					_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

					restore = true;

				}

				try {

					var texture = renderTarget.texture;
					var textureFormat = texture.format;
					var textureType = texture.type;

					if ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_FORMAT ) ) {

						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
						return;

					}

					if ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_TYPE ) && // IE11, Edge and Chrome Mac < 52 (#9513)
						! ( textureType === FloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox
						! ( textureType === HalfFloatType && ( capabilities.isWebGL2 ? extensions.get( 'EXT_color_buffer_float' ) : extensions.get( 'EXT_color_buffer_half_float' ) ) ) ) {

						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
						return;

					}

					if ( _gl.checkFramebufferStatus( _gl.FRAMEBUFFER ) === _gl.FRAMEBUFFER_COMPLETE ) {

						// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)

						if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {

							_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );

						}

					} else {

						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );

					}

				} finally {

					if ( restore ) {

						_gl.bindFramebuffer( _gl.FRAMEBUFFER, _currentFramebuffer );

					}

				}

			}

		};

		this.copyFramebufferToTexture = function ( position, texture, level ) {

			var width = texture.image.width;
			var height = texture.image.height;
			var glFormat = utils.convert( texture.format );

			this.setTexture2D( texture, 0 );

			_gl.copyTexImage2D( _gl.TEXTURE_2D, level || 0, glFormat, position.x, position.y, width, height, 0 );

		};

		this.copyTextureToTexture = function ( position, srcTexture, dstTexture, level ) {

			var width = srcTexture.image.width;
			var height = srcTexture.image.height;
			var glFormat = utils.convert( dstTexture.format );
			var glType = utils.convert( dstTexture.type );

			this.setTexture2D( dstTexture, 0 );

			if ( srcTexture.isDataTexture ) {

				_gl.texSubImage2D( _gl.TEXTURE_2D, level || 0, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data );

			} else {

				_gl.texSubImage2D( _gl.TEXTURE_2D, level || 0, position.x, position.y, glFormat, glType, srcTexture.image );

			}

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function FogExp2( color, density ) {

		this.name = '';

		this.color = new Color( color );
		this.density = ( density !== undefined ) ? density : 0.00025;

	}

	FogExp2.prototype.isFogExp2 = true;

	FogExp2.prototype.clone = function () {

		return new FogExp2( this.color, this.density );

	};

	FogExp2.prototype.toJSON = function ( /* meta */ ) {

		return {
			type: 'FogExp2',
			color: this.color.getHex(),
			density: this.density
		};

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Fog( color, near, far ) {

		this.name = '';

		this.color = new Color( color );

		this.near = ( near !== undefined ) ? near : 1;
		this.far = ( far !== undefined ) ? far : 1000;

	}

	Fog.prototype.isFog = true;

	Fog.prototype.clone = function () {

		return new Fog( this.color, this.near, this.far );

	};

	Fog.prototype.toJSON = function ( /* meta */ ) {

		return {
			type: 'Fog',
			color: this.color.getHex(),
			near: this.near,
			far: this.far
		};

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Scene() {

		Object3D.call( this );

		this.type = 'Scene';

		this.background = null;
		this.fog = null;
		this.overrideMaterial = null;

		this.autoUpdate = true; // checked by the renderer

	}

	Scene.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Scene,

		copy: function ( source, recursive ) {

			Object3D.prototype.copy.call( this, source, recursive );

			if ( source.background !== null ) this.background = source.background.clone();
			if ( source.fog !== null ) this.fog = source.fog.clone();
			if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();

			this.autoUpdate = source.autoUpdate;
			this.matrixAutoUpdate = source.matrixAutoUpdate;

			return this;

		},

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			if ( this.background !== null ) data.object.background = this.background.toJSON( meta );
			if ( this.fog !== null ) data.object.fog = this.fog.toJSON();

			return data;

		}

	} );

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InterleavedBuffer( array, stride ) {

		this.array = array;
		this.stride = stride;
		this.count = array !== undefined ? array.length / stride : 0;

		this.dynamic = false;
		this.updateRange = { offset: 0, count: - 1 };

		this.version = 0;

	}

	Object.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {

		set: function ( value ) {

			if ( value === true ) this.version ++;

		}

	} );

	Object.assign( InterleavedBuffer.prototype, {

		isInterleavedBuffer: true,

		onUploadCallback: function () {},

		setArray: function ( array ) {

			if ( Array.isArray( array ) ) {

				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );

			}

			this.count = array !== undefined ? array.length / this.stride : 0;
			this.array = array;

			return this;

		},

		setDynamic: function ( value ) {

			this.dynamic = value;

			return this;

		},

		copy: function ( source ) {

			this.array = new source.array.constructor( source.array );
			this.count = source.count;
			this.stride = source.stride;
			this.dynamic = source.dynamic;

			return this;

		},

		copyAt: function ( index1, attribute, index2 ) {

			index1 *= this.stride;
			index2 *= attribute.stride;

			for ( var i = 0, l = this.stride; i < l; i ++ ) {

				this.array[ index1 + i ] = attribute.array[ index2 + i ];

			}

			return this;

		},

		set: function ( value, offset ) {

			if ( offset === undefined ) offset = 0;

			this.array.set( value, offset );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		onUpload: function ( callback ) {

			this.onUploadCallback = callback;

			return this;

		}

	} );

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) {

		this.data = interleavedBuffer;
		this.itemSize = itemSize;
		this.offset = offset;

		this.normalized = normalized === true;

	}

	Object.defineProperties( InterleavedBufferAttribute.prototype, {

		count: {

			get: function () {

				return this.data.count;

			}

		},

		array: {

			get: function () {

				return this.data.array;

			}

		}

	} );

	Object.assign( InterleavedBufferAttribute.prototype, {

		isInterleavedBufferAttribute: true,

		setX: function ( index, x ) {

			this.data.array[ index * this.data.stride + this.offset ] = x;

			return this;

		},

		setY: function ( index, y ) {

			this.data.array[ index * this.data.stride + this.offset + 1 ] = y;

			return this;

		},

		setZ: function ( index, z ) {

			this.data.array[ index * this.data.stride + this.offset + 2 ] = z;

			return this;

		},

		setW: function ( index, w ) {

			this.data.array[ index * this.data.stride + this.offset + 3 ] = w;

			return this;

		},

		getX: function ( index ) {

			return this.data.array[ index * this.data.stride + this.offset ];

		},

		getY: function ( index ) {

			return this.data.array[ index * this.data.stride + this.offset + 1 ];

		},

		getZ: function ( index ) {

			return this.data.array[ index * this.data.stride + this.offset + 2 ];

		},

		getW: function ( index ) {

			return this.data.array[ index * this.data.stride + this.offset + 3 ];

		},

		setXY: function ( index, x, y ) {

			index = index * this.data.stride + this.offset;

			this.data.array[ index + 0 ] = x;
			this.data.array[ index + 1 ] = y;

			return this;

		},

		setXYZ: function ( index, x, y, z ) {

			index = index * this.data.stride + this.offset;

			this.data.array[ index + 0 ] = x;
			this.data.array[ index + 1 ] = y;
			this.data.array[ index + 2 ] = z;

			return this;

		},

		setXYZW: function ( index, x, y, z, w ) {

			index = index * this.data.stride + this.offset;

			this.data.array[ index + 0 ] = x;
			this.data.array[ index + 1 ] = y;
			this.data.array[ index + 2 ] = z;
			this.data.array[ index + 3 ] = w;

			return this;

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *	uvOffset: new THREE.Vector2(),
	 *	uvScale: new THREE.Vector2()
	 * }
	 */

	function SpriteMaterial( parameters ) {

		Material.call( this );

		this.type = 'SpriteMaterial';

		this.color = new Color( 0xffffff );
		this.map = null;

		this.rotation = 0;

		this.lights = false;
		this.transparent = true;

		this.setValues( parameters );

	}

	SpriteMaterial.prototype = Object.create( Material.prototype );
	SpriteMaterial.prototype.constructor = SpriteMaterial;
	SpriteMaterial.prototype.isSpriteMaterial = true;

	SpriteMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );
		this.map = source.map;

		this.rotation = source.rotation;

		return this;

	};

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 */

	var geometry;

	function Sprite( material ) {

		Object3D.call( this );

		this.type = 'Sprite';

		if ( geometry === undefined ) {

			geometry = new BufferGeometry();

			var float32Array = new Float32Array( [
				- 0.5, - 0.5, 0, 0, 0,
				0.5, - 0.5, 0, 1, 0,
				0.5, 0.5, 0, 1, 1,
				- 0.5, 0.5, 0, 0, 1
			] );

			var interleavedBuffer = new InterleavedBuffer( float32Array, 5 );

			geometry.setIndex( [ 0, 1, 2,	0, 2, 3 ] );
			geometry.addAttribute( 'position', new InterleavedBufferAttribute( interleavedBuffer, 3, 0, false ) );
			geometry.addAttribute( 'uv', new InterleavedBufferAttribute( interleavedBuffer, 2, 3, false ) );

		}

		this.geometry = geometry;
		this.material = ( material !== undefined ) ? material : new SpriteMaterial();

		this.center = new Vector2( 0.5, 0.5 );

	}

	Sprite.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Sprite,

		isSprite: true,

		raycast: ( function () {

			var intersectPoint = new Vector3();
			var worldScale = new Vector3();
			var mvPosition = new Vector3();

			var alignedPosition = new Vector2();
			var rotatedPosition = new Vector2();
			var viewWorldMatrix = new Matrix4();

			var vA = new Vector3();
			var vB = new Vector3();
			var vC = new Vector3();

			function transformVertex( vertexPosition, mvPosition, center, scale, sin, cos ) {

				// compute position in camera space
				alignedPosition.subVectors( vertexPosition, center ).addScalar( 0.5 ).multiply( scale );

				// to check if rotation is not zero
				if ( sin !== undefined ) {

					rotatedPosition.x = ( cos * alignedPosition.x ) - ( sin * alignedPosition.y );
					rotatedPosition.y = ( sin * alignedPosition.x ) + ( cos * alignedPosition.y );

				} else {

					rotatedPosition.copy( alignedPosition );

				}


				vertexPosition.copy( mvPosition );
				vertexPosition.x += rotatedPosition.x;
				vertexPosition.y += rotatedPosition.y;

				// transform to world space
				vertexPosition.applyMatrix4( viewWorldMatrix );

			}

			return function raycast( raycaster, intersects ) {

				worldScale.setFromMatrixScale( this.matrixWorld );
				viewWorldMatrix.getInverse( this.modelViewMatrix ).premultiply( this.matrixWorld );
				mvPosition.setFromMatrixPosition( this.modelViewMatrix );

				var rotation = this.material.rotation;
				var sin, cos;
				if ( rotation !== 0 ) {

					cos = Math.cos( rotation );
					sin = Math.sin( rotation );

				}

				var center = this.center;

				transformVertex( vA.set( - 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
				transformVertex( vB.set( 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
				transformVertex( vC.set( 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );

				// check first triangle
				var intersect = raycaster.ray.intersectTriangle( vA, vB, vC, false, intersectPoint );

				if ( intersect === null ) {

					// check second triangle
					transformVertex( vB.set( - 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
					intersect = raycaster.ray.intersectTriangle( vA, vC, vB, false, intersectPoint );
					if ( intersect === null ) {

						return;

					}

				}

				var distance = raycaster.ray.origin.distanceTo( intersectPoint );

				if ( distance < raycaster.near || distance > raycaster.far ) return;

				intersects.push( {

					distance: distance,
					point: intersectPoint.clone(),
					face: null,
					object: this

				} );

			};

		}() ),

		clone: function () {

			return new this.constructor( this.material ).copy( this );

		},

		copy: function ( source ) {

			Object3D.prototype.copy.call( this, source );

			if ( source.center !== undefined ) this.center.copy( source.center );

			return this;

		}


	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	function LOD() {

		Object3D.call( this );

		this.type = 'LOD';

		Object.defineProperties( this, {
			levels: {
				enumerable: true,
				value: []
			}
		} );

	}

	LOD.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: LOD,

		copy: function ( source ) {

			Object3D.prototype.copy.call( this, source, false );

			var levels = source.levels;

			for ( var i = 0, l = levels.length; i < l; i ++ ) {

				var level = levels[ i ];

				this.addLevel( level.object.clone(), level.distance );

			}

			return this;

		},

		addLevel: function ( object, distance ) {

			if ( distance === undefined ) distance = 0;

			distance = Math.abs( distance );

			var levels = this.levels;

			for ( var l = 0; l < levels.length; l ++ ) {

				if ( distance < levels[ l ].distance ) {

					break;

				}

			}

			levels.splice( l, 0, { distance: distance, object: object } );

			this.add( object );

		},

		getObjectForDistance: function ( distance ) {

			var levels = this.levels;

			for ( var i = 1, l = levels.length; i < l; i ++ ) {

				if ( distance < levels[ i ].distance ) {

					break;

				}

			}

			return levels[ i - 1 ].object;

		},

		raycast: ( function () {

			var matrixPosition = new Vector3();

			return function raycast( raycaster, intersects ) {

				matrixPosition.setFromMatrixPosition( this.matrixWorld );

				var distance = raycaster.ray.origin.distanceTo( matrixPosition );

				this.getObjectForDistance( distance ).raycast( raycaster, intersects );

			};

		}() ),

		update: function () {

			var v1 = new Vector3();
			var v2 = new Vector3();

			return function update( camera ) {

				var levels = this.levels;

				if ( levels.length > 1 ) {

					v1.setFromMatrixPosition( camera.matrixWorld );
					v2.setFromMatrixPosition( this.matrixWorld );

					var distance = v1.distanceTo( v2 );

					levels[ 0 ].object.visible = true;

					for ( var i = 1, l = levels.length; i < l; i ++ ) {

						if ( distance >= levels[ i ].distance ) {

							levels[ i - 1 ].object.visible = false;
							levels[ i ].object.visible = true;

						} else {

							break;

						}

					}

					for ( ; i < l; i ++ ) {

						levels[ i ].object.visible = false;

					}

				}

			};

		}(),

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			data.object.levels = [];

			var levels = this.levels;

			for ( var i = 0, l = levels.length; i < l; i ++ ) {

				var level = levels[ i ];

				data.object.levels.push( {
					object: level.object.uuid,
					distance: level.distance
				} );

			}

			return data;

		}

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author michael guerrero / http://realitymeltdown.com
	 * @author ikerr / http://verold.com
	 */

	function Skeleton( bones, boneInverses ) {

		// copy the bone array

		bones = bones || [];

		this.bones = bones.slice( 0 );
		this.boneMatrices = new Float32Array( this.bones.length * 16 );

		// use the supplied bone inverses or calculate the inverses

		if ( boneInverses === undefined ) {

			this.calculateInverses();

		} else {

			if ( this.bones.length === boneInverses.length ) {

				this.boneInverses = boneInverses.slice( 0 );

			} else {

				console.warn( 'THREE.Skeleton boneInverses is the wrong length.' );

				this.boneInverses = [];

				for ( var i = 0, il = this.bones.length; i < il; i ++ ) {

					this.boneInverses.push( new Matrix4() );

				}

			}

		}

	}

	Object.assign( Skeleton.prototype, {

		calculateInverses: function () {

			this.boneInverses = [];

			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {

				var inverse = new Matrix4();

				if ( this.bones[ i ] ) {

					inverse.getInverse( this.bones[ i ].matrixWorld );

				}

				this.boneInverses.push( inverse );

			}

		},

		pose: function () {

			var bone, i, il;

			// recover the bind-time world matrices

			for ( i = 0, il = this.bones.length; i < il; i ++ ) {

				bone = this.bones[ i ];

				if ( bone ) {

					bone.matrixWorld.getInverse( this.boneInverses[ i ] );

				}

			}

			// compute the local matrices, positions, rotations and scales

			for ( i = 0, il = this.bones.length; i < il; i ++ ) {

				bone = this.bones[ i ];

				if ( bone ) {

					if ( bone.parent && bone.parent.isBone ) {

						bone.matrix.getInverse( bone.parent.matrixWorld );
						bone.matrix.multiply( bone.matrixWorld );

					} else {

						bone.matrix.copy( bone.matrixWorld );

					}

					bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );

				}

			}

		},

		update: ( function () {

			var offsetMatrix = new Matrix4();
			var identityMatrix = new Matrix4();

			return function update() {

				var bones = this.bones;
				var boneInverses = this.boneInverses;
				var boneMatrices = this.boneMatrices;
				var boneTexture = this.boneTexture;

				// flatten bone matrices to array

				for ( var i = 0, il = bones.length; i < il; i ++ ) {

					// compute the offset between the current and the original transform

					var matrix = bones[ i ] ? bones[ i ].matrixWorld : identityMatrix;

					offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );
					offsetMatrix.toArray( boneMatrices, i * 16 );

				}

				if ( boneTexture !== undefined ) {

					boneTexture.needsUpdate = true;

				}

			};

		} )(),

		clone: function () {

			return new Skeleton( this.bones, this.boneInverses );

		},

		getBoneByName: function ( name ) {

			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {

				var bone = this.bones[ i ];

				if ( bone.name === name ) {

					return bone;

				}

			}

			return undefined;

		}

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author ikerr / http://verold.com
	 */

	function Bone() {

		Object3D.call( this );

		this.type = 'Bone';

	}

	Bone.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Bone,

		isBone: true

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author ikerr / http://verold.com
	 */

	function SkinnedMesh( geometry, material ) {

		Mesh.call( this, geometry, material );

		this.type = 'SkinnedMesh';

		this.bindMode = 'attached';
		this.bindMatrix = new Matrix4();
		this.bindMatrixInverse = new Matrix4();

		var bones = this.initBones();
		var skeleton = new Skeleton( bones );

		this.bind( skeleton, this.matrixWorld );

		this.normalizeSkinWeights();

	}

	SkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), {

		constructor: SkinnedMesh,

		isSkinnedMesh: true,

		initBones: function () {

			var bones = [], bone, gbone;
			var i, il;

			if ( this.geometry && this.geometry.bones !== undefined ) {

				// first, create array of 'Bone' objects from geometry data

				for ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {

					gbone = this.geometry.bones[ i ];

					// create new 'Bone' object

					bone = new Bone();
					bones.push( bone );

					// apply values

					bone.name = gbone.name;
					bone.position.fromArray( gbone.pos );
					bone.quaternion.fromArray( gbone.rotq );
					if ( gbone.scl !== undefined ) bone.scale.fromArray( gbone.scl );

				}

				// second, create bone hierarchy

				for ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {

					gbone = this.geometry.bones[ i ];

					if ( ( gbone.parent !== - 1 ) && ( gbone.parent !== null ) && ( bones[ gbone.parent ] !== undefined ) ) {

						// subsequent bones in the hierarchy

						bones[ gbone.parent ].add( bones[ i ] );

					} else {

						// topmost bone, immediate child of the skinned mesh

						this.add( bones[ i ] );

					}

				}

			}

			// now the bones are part of the scene graph and children of the skinned mesh.
			// let's update the corresponding matrices

			this.updateMatrixWorld( true );

			return bones;

		},

		bind: function ( skeleton, bindMatrix ) {

			this.skeleton = skeleton;

			if ( bindMatrix === undefined ) {

				this.updateMatrixWorld( true );

				this.skeleton.calculateInverses();

				bindMatrix = this.matrixWorld;

			}

			this.bindMatrix.copy( bindMatrix );
			this.bindMatrixInverse.getInverse( bindMatrix );

		},

		pose: function () {

			this.skeleton.pose();

		},

		normalizeSkinWeights: function () {

			var scale, i;

			if ( this.geometry && this.geometry.isGeometry ) {

				for ( i = 0; i < this.geometry.skinWeights.length; i ++ ) {

					var sw = this.geometry.skinWeights[ i ];

					scale = 1.0 / sw.manhattanLength();

					if ( scale !== Infinity ) {

						sw.multiplyScalar( scale );

					} else {

						sw.set( 1, 0, 0, 0 ); // do something reasonable

					}

				}

			} else if ( this.geometry && this.geometry.isBufferGeometry ) {

				var vec = new Vector4();

				var skinWeight = this.geometry.attributes.skinWeight;

				for ( i = 0; i < skinWeight.count; i ++ ) {

					vec.x = skinWeight.getX( i );
					vec.y = skinWeight.getY( i );
					vec.z = skinWeight.getZ( i );
					vec.w = skinWeight.getW( i );

					scale = 1.0 / vec.manhattanLength();

					if ( scale !== Infinity ) {

						vec.multiplyScalar( scale );

					} else {

						vec.set( 1, 0, 0, 0 ); // do something reasonable

					}

					skinWeight.setXYZW( i, vec.x, vec.y, vec.z, vec.w );

				}

			}

		},

		updateMatrixWorld: function ( force ) {

			Mesh.prototype.updateMatrixWorld.call( this, force );

			if ( this.bindMode === 'attached' ) {

				this.bindMatrixInverse.getInverse( this.matrixWorld );

			} else if ( this.bindMode === 'detached' ) {

				this.bindMatrixInverse.getInverse( this.bindMatrix );

			} else {

				console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );

			}

		},

		clone: function () {

			return new this.constructor( this.geometry, this.material ).copy( this );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *
	 *  linewidth: <float>,
	 *  linecap: "round",
	 *  linejoin: "round"
	 * }
	 */

	function LineBasicMaterial( parameters ) {

		Material.call( this );

		this.type = 'LineBasicMaterial';

		this.color = new Color( 0xffffff );

		this.linewidth = 1;
		this.linecap = 'round';
		this.linejoin = 'round';

		this.lights = false;

		this.setValues( parameters );

	}

	LineBasicMaterial.prototype = Object.create( Material.prototype );
	LineBasicMaterial.prototype.constructor = LineBasicMaterial;

	LineBasicMaterial.prototype.isLineBasicMaterial = true;

	LineBasicMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		this.linewidth = source.linewidth;
		this.linecap = source.linecap;
		this.linejoin = source.linejoin;

		return this;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Line( geometry, material, mode ) {

		if ( mode === 1 ) {

			console.error( 'THREE.Line: parameter THREE.LinePieces no longer supported. Use THREE.LineSegments instead.' );

		}

		Object3D.call( this );

		this.type = 'Line';

		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
		this.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } );

	}

	Line.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Line,

		isLine: true,

		computeLineDistances: ( function () {

			var start = new Vector3();
			var end = new Vector3();

			return function computeLineDistances() {

				var geometry = this.geometry;

				if ( geometry.isBufferGeometry ) {

					// we assume non-indexed geometry

					if ( geometry.index === null ) {

						var positionAttribute = geometry.attributes.position;
						var lineDistances = [ 0 ];

						for ( var i = 1, l = positionAttribute.count; i < l; i ++ ) {

							start.fromBufferAttribute( positionAttribute, i - 1 );
							end.fromBufferAttribute( positionAttribute, i );

							lineDistances[ i ] = lineDistances[ i - 1 ];
							lineDistances[ i ] += start.distanceTo( end );

						}

						geometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );

					} else {

						console.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );

					}

				} else if ( geometry.isGeometry ) {

					var vertices = geometry.vertices;
					var lineDistances = geometry.lineDistances;

					lineDistances[ 0 ] = 0;

					for ( var i = 1, l = vertices.length; i < l; i ++ ) {

						lineDistances[ i ] = lineDistances[ i - 1 ];
						lineDistances[ i ] += vertices[ i - 1 ].distanceTo( vertices[ i ] );

					}

				}

				return this;

			};

		}() ),

		raycast: ( function () {

			var inverseMatrix = new Matrix4();
			var ray = new Ray();
			var sphere = new Sphere();

			return function raycast( raycaster, intersects ) {

				var precision = raycaster.linePrecision;
				var precisionSq = precision * precision;

				var geometry = this.geometry;
				var matrixWorld = this.matrixWorld;

				// Checking boundingSphere distance to ray

				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

				sphere.copy( geometry.boundingSphere );
				sphere.applyMatrix4( matrixWorld );

				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;

				//

				inverseMatrix.getInverse( matrixWorld );
				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );

				var vStart = new Vector3();
				var vEnd = new Vector3();
				var interSegment = new Vector3();
				var interRay = new Vector3();
				var step = ( this && this.isLineSegments ) ? 2 : 1;

				if ( geometry.isBufferGeometry ) {

					var index = geometry.index;
					var attributes = geometry.attributes;
					var positions = attributes.position.array;

					if ( index !== null ) {

						var indices = index.array;

						for ( var i = 0, l = indices.length - 1; i < l; i += step ) {

							var a = indices[ i ];
							var b = indices[ i + 1 ];

							vStart.fromArray( positions, a * 3 );
							vEnd.fromArray( positions, b * 3 );

							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

							if ( distSq > precisionSq ) continue;

							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

							var distance = raycaster.ray.origin.distanceTo( interRay );

							if ( distance < raycaster.near || distance > raycaster.far ) continue;

							intersects.push( {

								distance: distance,
								// What do we want? intersection point on the ray or on the segment??
								// point: raycaster.ray.at( distance ),
								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
								index: i,
								face: null,
								faceIndex: null,
								object: this

							} );

						}

					} else {

						for ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {

							vStart.fromArray( positions, 3 * i );
							vEnd.fromArray( positions, 3 * i + 3 );

							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

							if ( distSq > precisionSq ) continue;

							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

							var distance = raycaster.ray.origin.distanceTo( interRay );

							if ( distance < raycaster.near || distance > raycaster.far ) continue;

							intersects.push( {

								distance: distance,
								// What do we want? intersection point on the ray or on the segment??
								// point: raycaster.ray.at( distance ),
								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
								index: i,
								face: null,
								faceIndex: null,
								object: this

							} );

						}

					}

				} else if ( geometry.isGeometry ) {

					var vertices = geometry.vertices;
					var nbVertices = vertices.length;

					for ( var i = 0; i < nbVertices - 1; i += step ) {

						var distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );

						if ( distSq > precisionSq ) continue;

						interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

						var distance = raycaster.ray.origin.distanceTo( interRay );

						if ( distance < raycaster.near || distance > raycaster.far ) continue;

						intersects.push( {

							distance: distance,
							// What do we want? intersection point on the ray or on the segment??
							// point: raycaster.ray.at( distance ),
							point: interSegment.clone().applyMatrix4( this.matrixWorld ),
							index: i,
							face: null,
							faceIndex: null,
							object: this

						} );

					}

				}

			};

		}() ),

		clone: function () {

			return new this.constructor( this.geometry, this.material ).copy( this );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function LineSegments( geometry, material ) {

		Line.call( this, geometry, material );

		this.type = 'LineSegments';

	}

	LineSegments.prototype = Object.assign( Object.create( Line.prototype ), {

		constructor: LineSegments,

		isLineSegments: true,

		computeLineDistances: ( function () {

			var start = new Vector3();
			var end = new Vector3();

			return function computeLineDistances() {

				var geometry = this.geometry;

				if ( geometry.isBufferGeometry ) {

					// we assume non-indexed geometry

					if ( geometry.index === null ) {

						var positionAttribute = geometry.attributes.position;
						var lineDistances = [];

						for ( var i = 0, l = positionAttribute.count; i < l; i += 2 ) {

							start.fromBufferAttribute( positionAttribute, i );
							end.fromBufferAttribute( positionAttribute, i + 1 );

							lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
							lineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );

						}

						geometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );

					} else {

						console.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );

					}

				} else if ( geometry.isGeometry ) {

					var vertices = geometry.vertices;
					var lineDistances = geometry.lineDistances;

					for ( var i = 0, l = vertices.length; i < l; i += 2 ) {

						start.copy( vertices[ i ] );
						end.copy( vertices[ i + 1 ] );

						lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
						lineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );

					}

				}

				return this;

			};

		}() )

	} );

	/**
	 * @author mgreter / http://github.com/mgreter
	 */

	function LineLoop( geometry, material ) {

		Line.call( this, geometry, material );

		this.type = 'LineLoop';

	}

	LineLoop.prototype = Object.assign( Object.create( Line.prototype ), {

		constructor: LineLoop,

		isLineLoop: true,

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  size: <float>,
	 *  sizeAttenuation: <bool>
	 *
	 *  morphTargets: <bool>
	 * }
	 */

	function PointsMaterial( parameters ) {

		Material.call( this );

		this.type = 'PointsMaterial';

		this.color = new Color( 0xffffff );

		this.map = null;

		this.size = 1;
		this.sizeAttenuation = true;

		this.morphTargets = false;

		this.lights = false;

		this.setValues( parameters );

	}

	PointsMaterial.prototype = Object.create( Material.prototype );
	PointsMaterial.prototype.constructor = PointsMaterial;

	PointsMaterial.prototype.isPointsMaterial = true;

	PointsMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		this.map = source.map;

		this.size = source.size;
		this.sizeAttenuation = source.sizeAttenuation;

		this.morphTargets = source.morphTargets;

		return this;

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Points( geometry, material ) {

		Object3D.call( this );

		this.type = 'Points';

		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
		this.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } );

	}

	Points.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Points,

		isPoints: true,

		raycast: ( function () {

			var inverseMatrix = new Matrix4();
			var ray = new Ray();
			var sphere = new Sphere();

			return function raycast( raycaster, intersects ) {

				var object = this;
				var geometry = this.geometry;
				var matrixWorld = this.matrixWorld;
				var threshold = raycaster.params.Points.threshold;

				// Checking boundingSphere distance to ray

				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

				sphere.copy( geometry.boundingSphere );
				sphere.applyMatrix4( matrixWorld );
				sphere.radius += threshold;

				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;

				//

				inverseMatrix.getInverse( matrixWorld );
				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );

				var localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
				var localThresholdSq = localThreshold * localThreshold;
				var position = new Vector3();
				var intersectPoint = new Vector3();

				function testPoint( point, index ) {

					var rayPointDistanceSq = ray.distanceSqToPoint( point );

					if ( rayPointDistanceSq < localThresholdSq ) {

						ray.closestPointToPoint( point, intersectPoint );
						intersectPoint.applyMatrix4( matrixWorld );

						var distance = raycaster.ray.origin.distanceTo( intersectPoint );

						if ( distance < raycaster.near || distance > raycaster.far ) return;

						intersects.push( {

							distance: distance,
							distanceToRay: Math.sqrt( rayPointDistanceSq ),
							point: intersectPoint.clone(),
							index: index,
							face: null,
							object: object

						} );

					}

				}

				if ( geometry.isBufferGeometry ) {

					var index = geometry.index;
					var attributes = geometry.attributes;
					var positions = attributes.position.array;

					if ( index !== null ) {

						var indices = index.array;

						for ( var i = 0, il = indices.length; i < il; i ++ ) {

							var a = indices[ i ];

							position.fromArray( positions, a * 3 );

							testPoint( position, a );

						}

					} else {

						for ( var i = 0, l = positions.length / 3; i < l; i ++ ) {

							position.fromArray( positions, i * 3 );

							testPoint( position, i );

						}

					}

				} else {

					var vertices = geometry.vertices;

					for ( var i = 0, l = vertices.length; i < l; i ++ ) {

						testPoint( vertices[ i ], i );

					}

				}

			};

		}() ),

		clone: function () {

			return new this.constructor( this.geometry, this.material ).copy( this );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

		Texture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

		this.generateMipmaps = false;

	}

	VideoTexture.prototype = Object.assign( Object.create( Texture.prototype ), {

		constructor: VideoTexture,

		isVideoTexture: true,

		update: function () {

			var video = this.image;

			if ( video.readyState >= video.HAVE_CURRENT_DATA ) {

				this.needsUpdate = true;

			}

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {

		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

		this.image = { width: width, height: height };
		this.mipmaps = mipmaps;

		// no flipping for cube textures
		// (also flipping doesn't work for compressed textures )

		this.flipY = false;

		// can't generate mipmaps for compressed textures
		// mips must be embedded in DDS files

		this.generateMipmaps = false;

	}

	CompressedTexture.prototype = Object.create( Texture.prototype );
	CompressedTexture.prototype.constructor = CompressedTexture;

	CompressedTexture.prototype.isCompressedTexture = true;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

		Texture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

		this.needsUpdate = true;

	}

	CanvasTexture.prototype = Object.create( Texture.prototype );
	CanvasTexture.prototype.constructor = CanvasTexture;
	CanvasTexture.prototype.isCanvasTexture = true;

	/**
	 * @author Matt DesLauriers / @mattdesl
	 * @author atix / arthursilber.de
	 */

	function DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {

		format = format !== undefined ? format : DepthFormat;

		if ( format !== DepthFormat && format !== DepthStencilFormat ) {

			throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );

		}

		if ( type === undefined && format === DepthFormat ) type = UnsignedShortType;
		if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;

		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

		this.image = { width: width, height: height };

		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;

		this.flipY = false;
		this.generateMipmaps	= false;

	}

	DepthTexture.prototype = Object.create( Texture.prototype );
	DepthTexture.prototype.constructor = DepthTexture;
	DepthTexture.prototype.isDepthTexture = true;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function WireframeGeometry( geometry ) {

		BufferGeometry.call( this );

		this.type = 'WireframeGeometry';

		// buffer

		var vertices = [];

		// helper variables

		var i, j, l, o, ol;
		var edge = [ 0, 0 ], edges = {}, e, edge1, edge2;
		var key, keys = [ 'a', 'b', 'c' ];
		var vertex;

		// different logic for Geometry and BufferGeometry

		if ( geometry && geometry.isGeometry ) {

			// create a data structure that contains all edges without duplicates

			var faces = geometry.faces;

			for ( i = 0, l = faces.length; i < l; i ++ ) {

				var face = faces[ i ];

				for ( j = 0; j < 3; j ++ ) {

					edge1 = face[ keys[ j ] ];
					edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
					edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
					edge[ 1 ] = Math.max( edge1, edge2 );

					key = edge[ 0 ] + ',' + edge[ 1 ];

					if ( edges[ key ] === undefined ) {

						edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };

					}

				}

			}

			// generate vertices

			for ( key in edges ) {

				e = edges[ key ];

				vertex = geometry.vertices[ e.index1 ];
				vertices.push( vertex.x, vertex.y, vertex.z );

				vertex = geometry.vertices[ e.index2 ];
				vertices.push( vertex.x, vertex.y, vertex.z );

			}

		} else if ( geometry && geometry.isBufferGeometry ) {

			var position, indices, groups;
			var group, start, count;
			var index1, index2;

			vertex = new Vector3();

			if ( geometry.index !== null ) {

				// indexed BufferGeometry

				position = geometry.attributes.position;
				indices = geometry.index;
				groups = geometry.groups;

				if ( groups.length === 0 ) {

					groups = [ { start: 0, count: indices.count, materialIndex: 0 } ];

				}

				// create a data structure that contains all eges without duplicates

				for ( o = 0, ol = groups.length; o < ol; ++ o ) {

					group = groups[ o ];

					start = group.start;
					count = group.count;

					for ( i = start, l = ( start + count ); i < l; i += 3 ) {

						for ( j = 0; j < 3; j ++ ) {

							edge1 = indices.getX( i + j );
							edge2 = indices.getX( i + ( j + 1 ) % 3 );
							edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
							edge[ 1 ] = Math.max( edge1, edge2 );

							key = edge[ 0 ] + ',' + edge[ 1 ];

							if ( edges[ key ] === undefined ) {

								edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };

							}

						}

					}

				}

				// generate vertices

				for ( key in edges ) {

					e = edges[ key ];

					vertex.fromBufferAttribute( position, e.index1 );
					vertices.push( vertex.x, vertex.y, vertex.z );

					vertex.fromBufferAttribute( position, e.index2 );
					vertices.push( vertex.x, vertex.y, vertex.z );

				}

			} else {

				// non-indexed BufferGeometry

				position = geometry.attributes.position;

				for ( i = 0, l = ( position.count / 3 ); i < l; i ++ ) {

					for ( j = 0; j < 3; j ++ ) {

						// three edges per triangle, an edge is represented as (index1, index2)
						// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)

						index1 = 3 * i + j;
						vertex.fromBufferAttribute( position, index1 );
						vertices.push( vertex.x, vertex.y, vertex.z );

						index2 = 3 * i + ( ( j + 1 ) % 3 );
						vertex.fromBufferAttribute( position, index2 );
						vertices.push( vertex.x, vertex.y, vertex.z );

					}

				}

			}

		}

		// build geometry

		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );

	}

	WireframeGeometry.prototype = Object.create( BufferGeometry.prototype );
	WireframeGeometry.prototype.constructor = WireframeGeometry;

	/**
	 * @author zz85 / https://github.com/zz85
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 * Parametric Surfaces Geometry
	 * based on the brilliant article by @prideout http://prideout.net/blog/?p=44
	 */

	// ParametricGeometry

	function ParametricGeometry( func, slices, stacks ) {

		Geometry.call( this );

		this.type = 'ParametricGeometry';

		this.parameters = {
			func: func,
			slices: slices,
			stacks: stacks
		};

		this.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) );
		this.mergeVertices();

	}

	ParametricGeometry.prototype = Object.create( Geometry.prototype );
	ParametricGeometry.prototype.constructor = ParametricGeometry;

	// ParametricBufferGeometry

	function ParametricBufferGeometry( func, slices, stacks ) {

		BufferGeometry.call( this );

		this.type = 'ParametricBufferGeometry';

		this.parameters = {
			func: func,
			slices: slices,
			stacks: stacks
		};

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		var EPS = 0.00001;

		var normal = new Vector3();

		var p0 = new Vector3(), p1 = new Vector3();
		var pu = new Vector3(), pv = new Vector3();

		var i, j;

		if ( func.length < 3 ) {

			console.error( 'THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.' );

		}

		// generate vertices, normals and uvs

		var sliceCount = slices + 1;

		for ( i = 0; i <= stacks; i ++ ) {

			var v = i / stacks;

			for ( j = 0; j <= slices; j ++ ) {

				var u = j / slices;

				// vertex

				func( u, v, p0 );
				vertices.push( p0.x, p0.y, p0.z );

				// normal

				// approximate tangent vectors via finite differences

				if ( u - EPS >= 0 ) {

					func( u - EPS, v, p1 );
					pu.subVectors( p0, p1 );

				} else {

					func( u + EPS, v, p1 );
					pu.subVectors( p1, p0 );

				}

				if ( v - EPS >= 0 ) {

					func( u, v - EPS, p1 );
					pv.subVectors( p0, p1 );

				} else {

					func( u, v + EPS, p1 );
					pv.subVectors( p1, p0 );

				}

				// cross product of tangent vectors returns surface normal

				normal.crossVectors( pu, pv ).normalize();
				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( u, v );

			}

		}

		// generate indices

		for ( i = 0; i < stacks; i ++ ) {

			for ( j = 0; j < slices; j ++ ) {

				var a = i * sliceCount + j;
				var b = i * sliceCount + j + 1;
				var c = ( i + 1 ) * sliceCount + j + 1;
				var d = ( i + 1 ) * sliceCount + j;

				// faces one and two

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	ParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	ParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry;

	/**
	 * @author clockworkgeek / https://github.com/clockworkgeek
	 * @author timothypratley / https://github.com/timothypratley
	 * @author WestLangley / http://github.com/WestLangley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// PolyhedronGeometry

	function PolyhedronGeometry( vertices, indices, radius, detail ) {

		Geometry.call( this );

		this.type = 'PolyhedronGeometry';

		this.parameters = {
			vertices: vertices,
			indices: indices,
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) );
		this.mergeVertices();

	}

	PolyhedronGeometry.prototype = Object.create( Geometry.prototype );
	PolyhedronGeometry.prototype.constructor = PolyhedronGeometry;

	// PolyhedronBufferGeometry

	function PolyhedronBufferGeometry( vertices, indices, radius, detail ) {

		BufferGeometry.call( this );

		this.type = 'PolyhedronBufferGeometry';

		this.parameters = {
			vertices: vertices,
			indices: indices,
			radius: radius,
			detail: detail
		};

		radius = radius || 1;
		detail = detail || 0;

		// default buffer data

		var vertexBuffer = [];
		var uvBuffer = [];

		// the subdivision creates the vertex buffer data

		subdivide( detail );

		// all vertices should lie on a conceptual sphere with a given radius

		appplyRadius( radius );

		// finally, create the uv data

		generateUVs();

		// build non-indexed geometry

		this.addAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );

		if ( detail === 0 ) {

			this.computeVertexNormals(); // flat normals

		} else {

			this.normalizeNormals(); // smooth normals

		}

		// helper functions

		function subdivide( detail ) {

			var a = new Vector3();
			var b = new Vector3();
			var c = new Vector3();

			// iterate over all faces and apply a subdivison with the given detail value

			for ( var i = 0; i < indices.length; i += 3 ) {

				// get the vertices of the face

				getVertexByIndex( indices[ i + 0 ], a );
				getVertexByIndex( indices[ i + 1 ], b );
				getVertexByIndex( indices[ i + 2 ], c );

				// perform subdivision

				subdivideFace( a, b, c, detail );

			}

		}

		function subdivideFace( a, b, c, detail ) {

			var cols = Math.pow( 2, detail );

			// we use this multidimensional array as a data structure for creating the subdivision

			var v = [];

			var i, j;

			// construct all of the vertices for this subdivision

			for ( i = 0; i <= cols; i ++ ) {

				v[ i ] = [];

				var aj = a.clone().lerp( c, i / cols );
				var bj = b.clone().lerp( c, i / cols );

				var rows = cols - i;

				for ( j = 0; j <= rows; j ++ ) {

					if ( j === 0 && i === cols ) {

						v[ i ][ j ] = aj;

					} else {

						v[ i ][ j ] = aj.clone().lerp( bj, j / rows );

					}

				}

			}

			// construct all of the faces

			for ( i = 0; i < cols; i ++ ) {

				for ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {

					var k = Math.floor( j / 2 );

					if ( j % 2 === 0 ) {

						pushVertex( v[ i ][ k + 1 ] );
						pushVertex( v[ i + 1 ][ k ] );
						pushVertex( v[ i ][ k ] );

					} else {

						pushVertex( v[ i ][ k + 1 ] );
						pushVertex( v[ i + 1 ][ k + 1 ] );
						pushVertex( v[ i + 1 ][ k ] );

					}

				}

			}

		}

		function appplyRadius( radius ) {

			var vertex = new Vector3();

			// iterate over the entire buffer and apply the radius to each vertex

			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {

				vertex.x = vertexBuffer[ i + 0 ];
				vertex.y = vertexBuffer[ i + 1 ];
				vertex.z = vertexBuffer[ i + 2 ];

				vertex.normalize().multiplyScalar( radius );

				vertexBuffer[ i + 0 ] = vertex.x;
				vertexBuffer[ i + 1 ] = vertex.y;
				vertexBuffer[ i + 2 ] = vertex.z;

			}

		}

		function generateUVs() {

			var vertex = new Vector3();

			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {

				vertex.x = vertexBuffer[ i + 0 ];
				vertex.y = vertexBuffer[ i + 1 ];
				vertex.z = vertexBuffer[ i + 2 ];

				var u = azimuth( vertex ) / 2 / Math.PI + 0.5;
				var v = inclination( vertex ) / Math.PI + 0.5;
				uvBuffer.push( u, 1 - v );

			}

			correctUVs();

			correctSeam();

		}

		function correctSeam() {

			// handle case when face straddles the seam, see #3269

			for ( var i = 0; i < uvBuffer.length; i += 6 ) {

				// uv data of a single face

				var x0 = uvBuffer[ i + 0 ];
				var x1 = uvBuffer[ i + 2 ];
				var x2 = uvBuffer[ i + 4 ];

				var max = Math.max( x0, x1, x2 );
				var min = Math.min( x0, x1, x2 );

				// 0.9 is somewhat arbitrary

				if ( max > 0.9 && min < 0.1 ) {

					if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;
					if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;
					if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;

				}

			}

		}

		function pushVertex( vertex ) {

			vertexBuffer.push( vertex.x, vertex.y, vertex.z );

		}

		function getVertexByIndex( index, vertex ) {

			var stride = index * 3;

			vertex.x = vertices[ stride + 0 ];
			vertex.y = vertices[ stride + 1 ];
			vertex.z = vertices[ stride + 2 ];

		}

		function correctUVs() {

			var a = new Vector3();
			var b = new Vector3();
			var c = new Vector3();

			var centroid = new Vector3();

			var uvA = new Vector2();
			var uvB = new Vector2();
			var uvC = new Vector2();

			for ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {

				a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );
				b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );
				c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );

				uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );
				uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );
				uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );

				centroid.copy( a ).add( b ).add( c ).divideScalar( 3 );

				var azi = azimuth( centroid );

				correctUV( uvA, j + 0, a, azi );
				correctUV( uvB, j + 2, b, azi );
				correctUV( uvC, j + 4, c, azi );

			}

		}

		function correctUV( uv, stride, vector, azimuth ) {

			if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {

				uvBuffer[ stride ] = uv.x - 1;

			}

			if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {

				uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;

			}

		}

		// Angle around the Y axis, counter-clockwise when looking from above.

		function azimuth( vector ) {

			return Math.atan2( vector.z, - vector.x );

		}


		// Angle above the XZ plane.

		function inclination( vector ) {

			return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );

		}

	}

	PolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	PolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry;

	/**
	 * @author timothypratley / https://github.com/timothypratley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// TetrahedronGeometry

	function TetrahedronGeometry( radius, detail ) {

		Geometry.call( this );

		this.type = 'TetrahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) );
		this.mergeVertices();

	}

	TetrahedronGeometry.prototype = Object.create( Geometry.prototype );
	TetrahedronGeometry.prototype.constructor = TetrahedronGeometry;

	// TetrahedronBufferGeometry

	function TetrahedronBufferGeometry( radius, detail ) {

		var vertices = [
			1, 1, 1, 	- 1, - 1, 1, 	- 1, 1, - 1, 	1, - 1, - 1
		];

		var indices = [
			2, 1, 0, 	0, 3, 2,	1, 3, 0,	2, 3, 1
		];

		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

		this.type = 'TetrahedronBufferGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	TetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
	TetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry;

	/**
	 * @author timothypratley / https://github.com/timothypratley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// OctahedronGeometry

	function OctahedronGeometry( radius, detail ) {

		Geometry.call( this );

		this.type = 'OctahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) );
		this.mergeVertices();

	}

	OctahedronGeometry.prototype = Object.create( Geometry.prototype );
	OctahedronGeometry.prototype.constructor = OctahedronGeometry;

	// OctahedronBufferGeometry

	function OctahedronBufferGeometry( radius, detail ) {

		var vertices = [
			1, 0, 0, 	- 1, 0, 0,	0, 1, 0,
			0, - 1, 0, 	0, 0, 1,	0, 0, - 1
		];

		var indices = [
			0, 2, 4,	0, 4, 3,	0, 3, 5,
			0, 5, 2,	1, 2, 5,	1, 5, 3,
			1, 3, 4,	1, 4, 2
		];

		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

		this.type = 'OctahedronBufferGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	OctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
	OctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry;

	/**
	 * @author timothypratley / https://github.com/timothypratley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// IcosahedronGeometry

	function IcosahedronGeometry( radius, detail ) {

		Geometry.call( this );

		this.type = 'IcosahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );
		this.mergeVertices();

	}

	IcosahedronGeometry.prototype = Object.create( Geometry.prototype );
	IcosahedronGeometry.prototype.constructor = IcosahedronGeometry;

	// IcosahedronBufferGeometry

	function IcosahedronBufferGeometry( radius, detail ) {

		var t = ( 1 + Math.sqrt( 5 ) ) / 2;

		var vertices = [
			- 1, t, 0, 	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
			 0, - 1, t, 	0, 1, t,	0, - 1, - t, 	0, 1, - t,
			 t, 0, - 1, 	t, 0, 1, 	- t, 0, - 1, 	- t, 0, 1
		];

		var indices = [
			 0, 11, 5, 	0, 5, 1, 	0, 1, 7, 	0, 7, 10, 	0, 10, 11,
			 1, 5, 9, 	5, 11, 4,	11, 10, 2,	10, 7, 6,	7, 1, 8,
			 3, 9, 4, 	3, 4, 2,	3, 2, 6,	3, 6, 8,	3, 8, 9,
			 4, 9, 5, 	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
		];

		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

		this.type = 'IcosahedronBufferGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	IcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
	IcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;

	/**
	 * @author Abe Pazos / https://hamoid.com
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// DodecahedronGeometry

	function DodecahedronGeometry( radius, detail ) {

		Geometry.call( this );

		this.type = 'DodecahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) );
		this.mergeVertices();

	}

	DodecahedronGeometry.prototype = Object.create( Geometry.prototype );
	DodecahedronGeometry.prototype.constructor = DodecahedronGeometry;

	// DodecahedronBufferGeometry

	function DodecahedronBufferGeometry( radius, detail ) {

		var t = ( 1 + Math.sqrt( 5 ) ) / 2;
		var r = 1 / t;

		var vertices = [

			// (±1, ±1, ±1)
			- 1, - 1, - 1,	- 1, - 1, 1,
			- 1, 1, - 1, - 1, 1, 1,
			1, - 1, - 1, 1, - 1, 1,
			1, 1, - 1, 1, 1, 1,

			// (0, ±1/φ, ±φ)
			 0, - r, - t, 0, - r, t,
			 0, r, - t, 0, r, t,

			// (±1/φ, ±φ, 0)
			- r, - t, 0, - r, t, 0,
			 r, - t, 0, r, t, 0,

			// (±φ, 0, ±1/φ)
			- t, 0, - r, t, 0, - r,
			- t, 0, r, t, 0, r
		];

		var indices = [
			3, 11, 7, 	3, 7, 15, 	3, 15, 13,
			7, 19, 17, 	7, 17, 6, 	7, 6, 15,
			17, 4, 8, 	17, 8, 10, 	17, 10, 6,
			8, 0, 16, 	8, 16, 2, 	8, 2, 10,
			0, 12, 1, 	0, 1, 18, 	0, 18, 16,
			6, 10, 2, 	6, 2, 13, 	6, 13, 15,
			2, 16, 18, 	2, 18, 3, 	2, 3, 13,
			18, 1, 9, 	18, 9, 11, 	18, 11, 3,
			4, 14, 12, 	4, 12, 0, 	4, 0, 8,
			11, 9, 5, 	11, 5, 19, 	11, 19, 7,
			19, 5, 14, 	19, 14, 4, 	19, 4, 17,
			1, 12, 14, 	1, 14, 5, 	1, 5, 9
		];

		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

		this.type = 'DodecahedronBufferGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	DodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
	DodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry;

	/**
	 * @author oosmoxiecode / https://github.com/oosmoxiecode
	 * @author WestLangley / https://github.com/WestLangley
	 * @author zz85 / https://github.com/zz85
	 * @author miningold / https://github.com/miningold
	 * @author jonobr1 / https://github.com/jonobr1
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 */

	// TubeGeometry

	function TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {

		Geometry.call( this );

		this.type = 'TubeGeometry';

		this.parameters = {
			path: path,
			tubularSegments: tubularSegments,
			radius: radius,
			radialSegments: radialSegments,
			closed: closed
		};

		if ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );

		var bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );

		// expose internals

		this.tangents = bufferGeometry.tangents;
		this.normals = bufferGeometry.normals;
		this.binormals = bufferGeometry.binormals;

		// create geometry

		this.fromBufferGeometry( bufferGeometry );
		this.mergeVertices();

	}

	TubeGeometry.prototype = Object.create( Geometry.prototype );
	TubeGeometry.prototype.constructor = TubeGeometry;

	// TubeBufferGeometry

	function TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) {

		BufferGeometry.call( this );

		this.type = 'TubeBufferGeometry';

		this.parameters = {
			path: path,
			tubularSegments: tubularSegments,
			radius: radius,
			radialSegments: radialSegments,
			closed: closed
		};

		tubularSegments = tubularSegments || 64;
		radius = radius || 1;
		radialSegments = radialSegments || 8;
		closed = closed || false;

		var frames = path.computeFrenetFrames( tubularSegments, closed );

		// expose internals

		this.tangents = frames.tangents;
		this.normals = frames.normals;
		this.binormals = frames.binormals;

		// helper variables

		var vertex = new Vector3();
		var normal = new Vector3();
		var uv = new Vector2();
		var P = new Vector3();

		var i, j;

		// buffer

		var vertices = [];
		var normals = [];
		var uvs = [];
		var indices = [];

		// create buffer data

		generateBufferData();

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		// functions

		function generateBufferData() {

			for ( i = 0; i < tubularSegments; i ++ ) {

				generateSegment( i );

			}

			// if the geometry is not closed, generate the last row of vertices and normals
			// at the regular position on the given path
			//
			// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)

			generateSegment( ( closed === false ) ? tubularSegments : 0 );

			// uvs are generated in a separate function.
			// this makes it easy compute correct values for closed geometries

			generateUVs();

			// finally create faces

			generateIndices();

		}

		function generateSegment( i ) {

			// we use getPointAt to sample evenly distributed points from the given path

			P = path.getPointAt( i / tubularSegments, P );

			// retrieve corresponding normal and binormal

			var N = frames.normals[ i ];
			var B = frames.binormals[ i ];

			// generate normals and vertices for the current segment

			for ( j = 0; j <= radialSegments; j ++ ) {

				var v = j / radialSegments * Math.PI * 2;

				var sin = Math.sin( v );
				var cos = - Math.cos( v );

				// normal

				normal.x = ( cos * N.x + sin * B.x );
				normal.y = ( cos * N.y + sin * B.y );
				normal.z = ( cos * N.z + sin * B.z );
				normal.normalize();

				normals.push( normal.x, normal.y, normal.z );

				// vertex

				vertex.x = P.x + radius * normal.x;
				vertex.y = P.y + radius * normal.y;
				vertex.z = P.z + radius * normal.z;

				vertices.push( vertex.x, vertex.y, vertex.z );

			}

		}

		function generateIndices() {

			for ( j = 1; j <= tubularSegments; j ++ ) {

				for ( i = 1; i <= radialSegments; i ++ ) {

					var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
					var b = ( radialSegments + 1 ) * j + ( i - 1 );
					var c = ( radialSegments + 1 ) * j + i;
					var d = ( radialSegments + 1 ) * ( j - 1 ) + i;

					// faces

					indices.push( a, b, d );
					indices.push( b, c, d );

				}

			}

		}

		function generateUVs() {

			for ( i = 0; i <= tubularSegments; i ++ ) {

				for ( j = 0; j <= radialSegments; j ++ ) {

					uv.x = i / tubularSegments;
					uv.y = j / radialSegments;

					uvs.push( uv.x, uv.y );

				}

			}

		}

	}

	TubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	TubeBufferGeometry.prototype.constructor = TubeBufferGeometry;

	/**
	 * @author oosmoxiecode
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 * based on http://www.blackpawn.com/texts/pqtorus/
	 */

	// TorusKnotGeometry

	function TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) {

		Geometry.call( this );

		this.type = 'TorusKnotGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			tubularSegments: tubularSegments,
			radialSegments: radialSegments,
			p: p,
			q: q
		};

		if ( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' );

		this.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) );
		this.mergeVertices();

	}

	TorusKnotGeometry.prototype = Object.create( Geometry.prototype );
	TorusKnotGeometry.prototype.constructor = TorusKnotGeometry;

	// TorusKnotBufferGeometry

	function TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) {

		BufferGeometry.call( this );

		this.type = 'TorusKnotBufferGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			tubularSegments: tubularSegments,
			radialSegments: radialSegments,
			p: p,
			q: q
		};

		radius = radius || 1;
		tube = tube || 0.4;
		tubularSegments = Math.floor( tubularSegments ) || 64;
		radialSegments = Math.floor( radialSegments ) || 8;
		p = p || 2;
		q = q || 3;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var i, j;

		var vertex = new Vector3();
		var normal = new Vector3();

		var P1 = new Vector3();
		var P2 = new Vector3();

		var B = new Vector3();
		var T = new Vector3();
		var N = new Vector3();

		// generate vertices, normals and uvs

		for ( i = 0; i <= tubularSegments; ++ i ) {

			// the radian "u" is used to calculate the position on the torus curve of the current tubular segement

			var u = i / tubularSegments * p * Math.PI * 2;

			// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
			// these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions

			calculatePositionOnCurve( u, p, q, radius, P1 );
			calculatePositionOnCurve( u + 0.01, p, q, radius, P2 );

			// calculate orthonormal basis

			T.subVectors( P2, P1 );
			N.addVectors( P2, P1 );
			B.crossVectors( T, N );
			N.crossVectors( B, T );

			// normalize B, N. T can be ignored, we don't use it

			B.normalize();
			N.normalize();

			for ( j = 0; j <= radialSegments; ++ j ) {

				// now calculate the vertices. they are nothing more than an extrusion of the torus curve.
				// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.

				var v = j / radialSegments * Math.PI * 2;
				var cx = - tube * Math.cos( v );
				var cy = tube * Math.sin( v );

				// now calculate the final vertex position.
				// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve

				vertex.x = P1.x + ( cx * N.x + cy * B.x );
				vertex.y = P1.y + ( cx * N.y + cy * B.y );
				vertex.z = P1.z + ( cx * N.z + cy * B.z );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)

				normal.subVectors( vertex, P1 ).normalize();

				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( i / tubularSegments );
				uvs.push( j / radialSegments );

			}

		}

		// generate indices

		for ( j = 1; j <= tubularSegments; j ++ ) {

			for ( i = 1; i <= radialSegments; i ++ ) {

				// indices

				var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
				var b = ( radialSegments + 1 ) * j + ( i - 1 );
				var c = ( radialSegments + 1 ) * j + i;
				var d = ( radialSegments + 1 ) * ( j - 1 ) + i;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		// this function calculates the current position on the torus curve

		function calculatePositionOnCurve( u, p, q, radius, position ) {

			var cu = Math.cos( u );
			var su = Math.sin( u );
			var quOverP = q / p * u;
			var cs = Math.cos( quOverP );

			position.x = radius * ( 2 + cs ) * 0.5 * cu;
			position.y = radius * ( 2 + cs ) * su * 0.5;
			position.z = radius * Math.sin( quOverP ) * 0.5;

		}

	}

	TorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	TorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry;

	/**
	 * @author oosmoxiecode
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// TorusGeometry

	function TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) {

		Geometry.call( this );

		this.type = 'TorusGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			radialSegments: radialSegments,
			tubularSegments: tubularSegments,
			arc: arc
		};

		this.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) );
		this.mergeVertices();

	}

	TorusGeometry.prototype = Object.create( Geometry.prototype );
	TorusGeometry.prototype.constructor = TorusGeometry;

	// TorusBufferGeometry

	function TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) {

		BufferGeometry.call( this );

		this.type = 'TorusBufferGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			radialSegments: radialSegments,
			tubularSegments: tubularSegments,
			arc: arc
		};

		radius = radius || 1;
		tube = tube || 0.4;
		radialSegments = Math.floor( radialSegments ) || 8;
		tubularSegments = Math.floor( tubularSegments ) || 6;
		arc = arc || Math.PI * 2;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var center = new Vector3();
		var vertex = new Vector3();
		var normal = new Vector3();

		var j, i;

		// generate vertices, normals and uvs

		for ( j = 0; j <= radialSegments; j ++ ) {

			for ( i = 0; i <= tubularSegments; i ++ ) {

				var u = i / tubularSegments * arc;
				var v = j / radialSegments * Math.PI * 2;

				// vertex

				vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );
				vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );
				vertex.z = tube * Math.sin( v );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				center.x = radius * Math.cos( u );
				center.y = radius * Math.sin( u );
				normal.subVectors( vertex, center ).normalize();

				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( i / tubularSegments );
				uvs.push( j / radialSegments );

			}

		}

		// generate indices

		for ( j = 1; j <= radialSegments; j ++ ) {

			for ( i = 1; i <= tubularSegments; i ++ ) {

				// indices

				var a = ( tubularSegments + 1 ) * j + i - 1;
				var b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;
				var c = ( tubularSegments + 1 ) * ( j - 1 ) + i;
				var d = ( tubularSegments + 1 ) * j + i;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	TorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	TorusBufferGeometry.prototype.constructor = TorusBufferGeometry;

	/**
	 * @author Mugen87 / https://github.com/Mugen87
	 * Port from https://github.com/mapbox/earcut (v2.1.2)
	 */

	var Earcut = {

		triangulate: function ( data, holeIndices, dim ) {

			dim = dim || 2;

			var hasHoles = holeIndices && holeIndices.length,
				outerLen = hasHoles ? holeIndices[ 0 ] * dim : data.length,
				outerNode = linkedList( data, 0, outerLen, dim, true ),
				triangles = [];

			if ( ! outerNode ) return triangles;

			var minX, minY, maxX, maxY, x, y, invSize;

			if ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim );

			// if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox

			if ( data.length > 80 * dim ) {

				minX = maxX = data[ 0 ];
				minY = maxY = data[ 1 ];

				for ( var i = dim; i < outerLen; i += dim ) {

					x = data[ i ];
					y = data[ i + 1 ];
					if ( x < minX ) minX = x;
					if ( y < minY ) minY = y;
					if ( x > maxX ) maxX = x;
					if ( y > maxY ) maxY = y;

				}

				// minX, minY and invSize are later used to transform coords into integers for z-order calculation

				invSize = Math.max( maxX - minX, maxY - minY );
				invSize = invSize !== 0 ? 1 / invSize : 0;

			}

			earcutLinked( outerNode, triangles, dim, minX, minY, invSize );

			return triangles;

		}

	};

	// create a circular doubly linked list from polygon points in the specified winding order

	function linkedList( data, start, end, dim, clockwise ) {

		var i, last;

		if ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) {

			for ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );

		} else {

			for ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );

		}

		if ( last && equals( last, last.next ) ) {

			removeNode( last );
			last = last.next;

		}

		return last;

	}

	// eliminate colinear or duplicate points

	function filterPoints( start, end ) {

		if ( ! start ) return start;
		if ( ! end ) end = start;

		var p = start, again;

		do {

			again = false;

			if ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) {

				removeNode( p );
				p = end = p.prev;
				if ( p === p.next ) break;
				again = true;

			} else {

				p = p.next;

			}

		} while ( again || p !== end );

		return end;

	}

	// main ear slicing loop which triangulates a polygon (given as a linked list)

	function earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) {

		if ( ! ear ) return;

		// interlink polygon nodes in z-order

		if ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize );

		var stop = ear, prev, next;

		// iterate through ears, slicing them one by one

		while ( ear.prev !== ear.next ) {

			prev = ear.prev;
			next = ear.next;

			if ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) {

				// cut off the triangle
				triangles.push( prev.i / dim );
				triangles.push( ear.i / dim );
				triangles.push( next.i / dim );

				removeNode( ear );

				// skipping the next vertice leads to less sliver triangles
				ear = next.next;
				stop = next.next;

				continue;

			}

			ear = next;

			// if we looped through the whole remaining polygon and can't find any more ears

			if ( ear === stop ) {

				// try filtering points and slicing again

				if ( ! pass ) {

					earcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 );

					// if this didn't work, try curing all small self-intersections locally

				} else if ( pass === 1 ) {

					ear = cureLocalIntersections( ear, triangles, dim );
					earcutLinked( ear, triangles, dim, minX, minY, invSize, 2 );

					// as a last resort, try splitting the remaining polygon into two

				} else if ( pass === 2 ) {

					splitEarcut( ear, triangles, dim, minX, minY, invSize );

				}

				break;

			}

		}

	}

	// check whether a polygon node forms a valid ear with adjacent nodes

	function isEar( ear ) {

		var a = ear.prev,
			b = ear,
			c = ear.next;

		if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear

		// now make sure we don't have other points inside the potential ear
		var p = ear.next.next;

		while ( p !== ear.prev ) {

			if ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && area( p.prev, p, p.next ) >= 0 ) {

				return false;

			}

			p = p.next;

		}

		return true;

	}

	function isEarHashed( ear, minX, minY, invSize ) {

		var a = ear.prev,
			b = ear,
			c = ear.next;

		if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear

		// triangle bbox; min & max are calculated like this for speed

		var minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ),
			minTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ),
			maxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ),
			maxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y );

		// z-order range for the current triangle bbox;

		var minZ = zOrder( minTX, minTY, minX, minY, invSize ),
			maxZ = zOrder( maxTX, maxTY, minX, minY, invSize );

		// first look for points inside the triangle in increasing z-order

		var p = ear.nextZ;

		while ( p && p.z <= maxZ ) {

			if ( p !== ear.prev && p !== ear.next &&
					pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
					area( p.prev, p, p.next ) >= 0 ) return false;
			p = p.nextZ;

		}

		// then look for points in decreasing z-order

		p = ear.prevZ;

		while ( p && p.z >= minZ ) {

			if ( p !== ear.prev && p !== ear.next &&
					pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
					area( p.prev, p, p.next ) >= 0 ) return false;

			p = p.prevZ;

		}

		return true;

	}

	// go through all polygon nodes and cure small local self-intersections

	function cureLocalIntersections( start, triangles, dim ) {

		var p = start;

		do {

			var a = p.prev, b = p.next.next;

			if ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) {

				triangles.push( a.i / dim );
				triangles.push( p.i / dim );
				triangles.push( b.i / dim );

				// remove two nodes involved

				removeNode( p );
				removeNode( p.next );

				p = start = b;

			}

			p = p.next;

		} while ( p !== start );

		return p;

	}

	// try splitting polygon into two and triangulate them independently

	function splitEarcut( start, triangles, dim, minX, minY, invSize ) {

		// look for a valid diagonal that divides the polygon into two

		var a = start;

		do {

			var b = a.next.next;

			while ( b !== a.prev ) {

				if ( a.i !== b.i && isValidDiagonal( a, b ) ) {

					// split the polygon in two by the diagonal

					var c = splitPolygon( a, b );

					// filter colinear points around the cuts

					a = filterPoints( a, a.next );
					c = filterPoints( c, c.next );

					// run earcut on each half

					earcutLinked( a, triangles, dim, minX, minY, invSize );
					earcutLinked( c, triangles, dim, minX, minY, invSize );
					return;

				}

				b = b.next;

			}

			a = a.next;

		} while ( a !== start );

	}

	// link every hole into the outer loop, producing a single-ring polygon without holes

	function eliminateHoles( data, holeIndices, outerNode, dim ) {

		var queue = [], i, len, start, end, list;

		for ( i = 0, len = holeIndices.length; i < len; i ++ ) {

			start = holeIndices[ i ] * dim;
			end = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length;
			list = linkedList( data, start, end, dim, false );
			if ( list === list.next ) list.steiner = true;
			queue.push( getLeftmost( list ) );

		}

		queue.sort( compareX );

		// process holes from left to right

		for ( i = 0; i < queue.length; i ++ ) {

			eliminateHole( queue[ i ], outerNode );
			outerNode = filterPoints( outerNode, outerNode.next );

		}

		return outerNode;

	}

	function compareX( a, b ) {

		return a.x - b.x;

	}

	// find a bridge between vertices that connects hole with an outer ring and and link it

	function eliminateHole( hole, outerNode ) {

		outerNode = findHoleBridge( hole, outerNode );

		if ( outerNode ) {

			var b = splitPolygon( outerNode, hole );

			filterPoints( b, b.next );

		}

	}

	// David Eberly's algorithm for finding a bridge between hole and outer polygon

	function findHoleBridge( hole, outerNode ) {

		var p = outerNode,
			hx = hole.x,
			hy = hole.y,
			qx = - Infinity,
			m;

		// find a segment intersected by a ray from the hole's leftmost point to the left;
		// segment's endpoint with lesser x will be potential connection point

		do {

			if ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) {

				var x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y );

				if ( x <= hx && x > qx ) {

					qx = x;

					if ( x === hx ) {

						if ( hy === p.y ) return p;
						if ( hy === p.next.y ) return p.next;

					}

					m = p.x < p.next.x ? p : p.next;

				}

			}

			p = p.next;

		} while ( p !== outerNode );

		if ( ! m ) return null;

		if ( hx === qx ) return m.prev; // hole touches outer segment; pick lower endpoint

		// look for points inside the triangle of hole point, segment intersection and endpoint;
		// if there are no points found, we have a valid connection;
		// otherwise choose the point of the minimum angle with the ray as connection point

		var stop = m,
			mx = m.x,
			my = m.y,
			tanMin = Infinity,
			tan;

		p = m.next;

		while ( p !== stop ) {

			if ( hx >= p.x && p.x >= mx && hx !== p.x &&
							pointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) {

				tan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential

				if ( ( tan < tanMin || ( tan === tanMin && p.x > m.x ) ) && locallyInside( p, hole ) ) {

					m = p;
					tanMin = tan;

				}

			}

			p = p.next;

		}

		return m;

	}

	// interlink polygon nodes in z-order

	function indexCurve( start, minX, minY, invSize ) {

		var p = start;

		do {

			if ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize );
			p.prevZ = p.prev;
			p.nextZ = p.next;
			p = p.next;

		} while ( p !== start );

		p.prevZ.nextZ = null;
		p.prevZ = null;

		sortLinked( p );

	}

	// Simon Tatham's linked list merge sort algorithm
	// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html

	function sortLinked( list ) {

		var i, p, q, e, tail, numMerges, pSize, qSize, inSize = 1;

		do {

			p = list;
			list = null;
			tail = null;
			numMerges = 0;

			while ( p ) {

				numMerges ++;
				q = p;
				pSize = 0;

				for ( i = 0; i < inSize; i ++ ) {

					pSize ++;
					q = q.nextZ;
					if ( ! q ) break;

				}

				qSize = inSize;

				while ( pSize > 0 || ( qSize > 0 && q ) ) {

					if ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) {

						e = p;
						p = p.nextZ;
						pSize --;

					} else {

						e = q;
						q = q.nextZ;
						qSize --;

					}

					if ( tail ) tail.nextZ = e;
					else list = e;

					e.prevZ = tail;
					tail = e;

				}

				p = q;

			}

			tail.nextZ = null;
			inSize *= 2;

		} while ( numMerges > 1 );

		return list;

	}

	// z-order of a point given coords and inverse of the longer side of data bbox

	function zOrder( x, y, minX, minY, invSize ) {

		// coords are transformed into non-negative 15-bit integer range

		x = 32767 * ( x - minX ) * invSize;
		y = 32767 * ( y - minY ) * invSize;

		x = ( x | ( x << 8 ) ) & 0x00FF00FF;
		x = ( x | ( x << 4 ) ) & 0x0F0F0F0F;
		x = ( x | ( x << 2 ) ) & 0x33333333;
		x = ( x | ( x << 1 ) ) & 0x55555555;

		y = ( y | ( y << 8 ) ) & 0x00FF00FF;
		y = ( y | ( y << 4 ) ) & 0x0F0F0F0F;
		y = ( y | ( y << 2 ) ) & 0x33333333;
		y = ( y | ( y << 1 ) ) & 0x55555555;

		return x | ( y << 1 );

	}

	// find the leftmost node of a polygon ring

	function getLeftmost( start ) {

		var p = start, leftmost = start;

		do {

			if ( p.x < leftmost.x ) leftmost = p;
			p = p.next;

		} while ( p !== start );

		return leftmost;

	}

	// check if a point lies within a convex triangle

	function pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) {

		return ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 &&
		 ( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 &&
		 ( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0;

	}

	// check if a diagonal between two polygon nodes is valid (lies in polygon interior)

	function isValidDiagonal( a, b ) {

		return a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) &&
			locallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b );

	}

	// signed area of a triangle

	function area( p, q, r ) {

		return ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y );

	}

	// check if two points are equal

	function equals( p1, p2 ) {

		return p1.x === p2.x && p1.y === p2.y;

	}

	// check if two segments intersect

	function intersects( p1, q1, p2, q2 ) {

		if ( ( equals( p1, q1 ) && equals( p2, q2 ) ) ||
				( equals( p1, q2 ) && equals( p2, q1 ) ) ) return true;

		return area( p1, q1, p2 ) > 0 !== area( p1, q1, q2 ) > 0 &&
					 area( p2, q2, p1 ) > 0 !== area( p2, q2, q1 ) > 0;

	}

	// check if a polygon diagonal intersects any polygon segments

	function intersectsPolygon( a, b ) {

		var p = a;

		do {

			if ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&
							intersects( p, p.next, a, b ) ) {

				return true;

			}

			p = p.next;

		} while ( p !== a );

		return false;

	}

	// check if a polygon diagonal is locally inside the polygon

	function locallyInside( a, b ) {

		return area( a.prev, a, a.next ) < 0 ?
			area( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 :
			area( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0;

	}

	// check if the middle point of a polygon diagonal is inside the polygon

	function middleInside( a, b ) {

		var p = a,
			inside = false,
			px = ( a.x + b.x ) / 2,
			py = ( a.y + b.y ) / 2;

		do {

			if ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y &&
							( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) ) {

				inside = ! inside;

			}

			p = p.next;

		} while ( p !== a );

		return inside;

	}

	// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
	// if one belongs to the outer ring and another to a hole, it merges it into a single ring

	function splitPolygon( a, b ) {

		var a2 = new Node( a.i, a.x, a.y ),
			b2 = new Node( b.i, b.x, b.y ),
			an = a.next,
			bp = b.prev;

		a.next = b;
		b.prev = a;

		a2.next = an;
		an.prev = a2;

		b2.next = a2;
		a2.prev = b2;

		bp.next = b2;
		b2.prev = bp;

		return b2;

	}

	// create a node and optionally link it with previous one (in a circular doubly linked list)

	function insertNode( i, x, y, last ) {

		var p = new Node( i, x, y );

		if ( ! last ) {

			p.prev = p;
			p.next = p;

		} else {

			p.next = last.next;
			p.prev = last;
			last.next.prev = p;
			last.next = p;

		}

		return p;

	}

	function removeNode( p ) {

		p.next.prev = p.prev;
		p.prev.next = p.next;

		if ( p.prevZ ) p.prevZ.nextZ = p.nextZ;
		if ( p.nextZ ) p.nextZ.prevZ = p.prevZ;

	}

	function Node( i, x, y ) {

		// vertice index in coordinates array
		this.i = i;

		// vertex coordinates
		this.x = x;
		this.y = y;

		// previous and next vertice nodes in a polygon ring
		this.prev = null;
		this.next = null;

		// z-order curve value
		this.z = null;

		// previous and next nodes in z-order
		this.prevZ = null;
		this.nextZ = null;

		// indicates whether this is a steiner point
		this.steiner = false;

	}

	function signedArea( data, start, end, dim ) {

		var sum = 0;

		for ( var i = start, j = end - dim; i < end; i += dim ) {

			sum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] );
			j = i;

		}

		return sum;

	}

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 */

	var ShapeUtils = {

		// calculate area of the contour polygon

		area: function ( contour ) {

			var n = contour.length;
			var a = 0.0;

			for ( var p = n - 1, q = 0; q < n; p = q ++ ) {

				a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;

			}

			return a * 0.5;

		},

		isClockWise: function ( pts ) {

			return ShapeUtils.area( pts ) < 0;

		},

		triangulateShape: function ( contour, holes ) {

			var vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]
			var holeIndices = []; // array of hole indices
			var faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]

			removeDupEndPts( contour );
			addContour( vertices, contour );

			//

			var holeIndex = contour.length;

			holes.forEach( removeDupEndPts );

			for ( var i = 0; i < holes.length; i ++ ) {

				holeIndices.push( holeIndex );
				holeIndex += holes[ i ].length;
				addContour( vertices, holes[ i ] );

			}

			//

			var triangles = Earcut.triangulate( vertices, holeIndices );

			//

			for ( var i = 0; i < triangles.length; i += 3 ) {

				faces.push( triangles.slice( i, i + 3 ) );

			}

			return faces;

		}

	};

	function removeDupEndPts( points ) {

		var l = points.length;

		if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {

			points.pop();

		}

	}

	function addContour( vertices, contour ) {

		for ( var i = 0; i < contour.length; i ++ ) {

			vertices.push( contour[ i ].x );
			vertices.push( contour[ i ].y );

		}

	}

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 *
	 * Creates extruded geometry from a path shape.
	 *
	 * parameters = {
	 *
	 *  curveSegments: <int>, // number of points on the curves
	 *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
	 *  depth: <float>, // Depth to extrude the shape
	 *
	 *  bevelEnabled: <bool>, // turn on bevel
	 *  bevelThickness: <float>, // how deep into the original shape bevel goes
	 *  bevelSize: <float>, // how far from shape outline is bevel
	 *  bevelSegments: <int>, // number of bevel layers
	 *
	 *  extrudePath: <THREE.Curve> // curve to extrude shape along
	 *
	 *  UVGenerator: <Object> // object that provides UV generator functions
	 *
	 * }
	 */

	// ExtrudeGeometry

	function ExtrudeGeometry( shapes, options ) {

		Geometry.call( this );

		this.type = 'ExtrudeGeometry';

		this.parameters = {
			shapes: shapes,
			options: options
		};

		this.fromBufferGeometry( new ExtrudeBufferGeometry( shapes, options ) );
		this.mergeVertices();

	}

	ExtrudeGeometry.prototype = Object.create( Geometry.prototype );
	ExtrudeGeometry.prototype.constructor = ExtrudeGeometry;

	ExtrudeGeometry.prototype.toJSON = function () {

		var data = Geometry.prototype.toJSON.call( this );

		var shapes = this.parameters.shapes;
		var options = this.parameters.options;

		return toJSON( shapes, options, data );

	};

	// ExtrudeBufferGeometry

	function ExtrudeBufferGeometry( shapes, options ) {

		BufferGeometry.call( this );

		this.type = 'ExtrudeBufferGeometry';

		this.parameters = {
			shapes: shapes,
			options: options
		};

		shapes = Array.isArray( shapes ) ? shapes : [ shapes ];

		var scope = this;

		var verticesArray = [];
		var uvArray = [];

		for ( var i = 0, l = shapes.length; i < l; i ++ ) {

			var shape = shapes[ i ];
			addShape( shape );

		}

		// build geometry

		this.addAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) );

		this.computeVertexNormals();

		// functions

		function addShape( shape ) {

			var placeholder = [];

			// options

			var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
			var steps = options.steps !== undefined ? options.steps : 1;
			var depth = options.depth !== undefined ? options.depth : 100;

			var bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;
			var bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6;
			var bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2;
			var bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;

			var extrudePath = options.extrudePath;

			var uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator;

			// deprecated options

			if ( options.amount !== undefined ) {

				console.warn( 'THREE.ExtrudeBufferGeometry: amount has been renamed to depth.' );
				depth = options.amount;

			}

			//

			var extrudePts, extrudeByPath = false;
			var splineTube, binormal, normal, position2;

			if ( extrudePath ) {

				extrudePts = extrudePath.getSpacedPoints( steps );

				extrudeByPath = true;
				bevelEnabled = false; // bevels not supported for path extrusion

				// SETUP TNB variables

				// TODO1 - have a .isClosed in spline?

				splineTube = extrudePath.computeFrenetFrames( steps, false );

				// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);

				binormal = new Vector3();
				normal = new Vector3();
				position2 = new Vector3();

			}

			// Safeguards if bevels are not enabled

			if ( ! bevelEnabled ) {

				bevelSegments = 0;
				bevelThickness = 0;
				bevelSize = 0;

			}

			// Variables initialization

			var ahole, h, hl; // looping of holes

			var shapePoints = shape.extractPoints( curveSegments );

			var vertices = shapePoints.shape;
			var holes = shapePoints.holes;

			var reverse = ! ShapeUtils.isClockWise( vertices );

			if ( reverse ) {

				vertices = vertices.reverse();

				// Maybe we should also check if holes are in the opposite direction, just to be safe ...

				for ( h = 0, hl = holes.length; h < hl; h ++ ) {

					ahole = holes[ h ];

					if ( ShapeUtils.isClockWise( ahole ) ) {

						holes[ h ] = ahole.reverse();

					}

				}

			}


			var faces = ShapeUtils.triangulateShape( vertices, holes );

			/* Vertices */

			var contour = vertices; // vertices has all points but contour has only points of circumference

			for ( h = 0, hl = holes.length; h < hl; h ++ ) {

				ahole = holes[ h ];

				vertices = vertices.concat( ahole );

			}


			function scalePt2( pt, vec, size ) {

				if ( ! vec ) console.error( "THREE.ExtrudeGeometry: vec does not exist" );

				return vec.clone().multiplyScalar( size ).add( pt );

			}

			var b, bs, t, z,
				vert, vlen = vertices.length,
				face, flen = faces.length;


			// Find directions for point movement


			function getBevelVec( inPt, inPrev, inNext ) {

				// computes for inPt the corresponding point inPt' on a new contour
				//   shifted by 1 unit (length of normalized vector) to the left
				// if we walk along contour clockwise, this new contour is outside the old one
				//
				// inPt' is the intersection of the two lines parallel to the two
				//  adjacent edges of inPt at a distance of 1 unit on the left side.

				var v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt

				// good reading for geometry algorithms (here: line-line intersection)
				// http://geomalgorithms.com/a05-_intersect-1.html

				var v_prev_x = inPt.x - inPrev.x,
					v_prev_y = inPt.y - inPrev.y;
				var v_next_x = inNext.x - inPt.x,
					v_next_y = inNext.y - inPt.y;

				var v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );

				// check for collinear edges
				var collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );

				if ( Math.abs( collinear0 ) > Number.EPSILON ) {

					// not collinear

					// length of vectors for normalizing

					var v_prev_len = Math.sqrt( v_prev_lensq );
					var v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );

					// shift adjacent points by unit vectors to the left

					var ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );
					var ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );

					var ptNextShift_x = ( inNext.x - v_next_y / v_next_len );
					var ptNextShift_y = ( inNext.y + v_next_x / v_next_len );

					// scaling factor for v_prev to intersection point

					var sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -
							( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /
						( v_prev_x * v_next_y - v_prev_y * v_next_x );

					// vector from inPt to intersection point

					v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );
					v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );

					// Don't normalize!, otherwise sharp corners become ugly
					//  but prevent crazy spikes
					var v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );
					if ( v_trans_lensq <= 2 ) {

						return new Vector2( v_trans_x, v_trans_y );

					} else {

						shrink_by = Math.sqrt( v_trans_lensq / 2 );

					}

				} else {

					// handle special case of collinear edges

					var direction_eq = false; // assumes: opposite
					if ( v_prev_x > Number.EPSILON ) {

						if ( v_next_x > Number.EPSILON ) {

							direction_eq = true;

						}

					} else {

						if ( v_prev_x < - Number.EPSILON ) {

							if ( v_next_x < - Number.EPSILON ) {

								direction_eq = true;

							}

						} else {

							if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {

								direction_eq = true;

							}

						}

					}

					if ( direction_eq ) {

						// console.log("Warning: lines are a straight sequence");
						v_trans_x = - v_prev_y;
						v_trans_y = v_prev_x;
						shrink_by = Math.sqrt( v_prev_lensq );

					} else {

						// console.log("Warning: lines are a straight spike");
						v_trans_x = v_prev_x;
						v_trans_y = v_prev_y;
						shrink_by = Math.sqrt( v_prev_lensq / 2 );

					}

				}

				return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );

			}


			var contourMovements = [];

			for ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

				if ( j === il ) j = 0;
				if ( k === il ) k = 0;

				//  (j)---(i)---(k)
				// console.log('i,j,k', i, j , k)

				contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );

			}

			var holesMovements = [],
				oneHoleMovements, verticesMovements = contourMovements.concat();

			for ( h = 0, hl = holes.length; h < hl; h ++ ) {

				ahole = holes[ h ];

				oneHoleMovements = [];

				for ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

					if ( j === il ) j = 0;
					if ( k === il ) k = 0;

					//  (j)---(i)---(k)
					oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );

				}

				holesMovements.push( oneHoleMovements );
				verticesMovements = verticesMovements.concat( oneHoleMovements );

			}


			// Loop bevelSegments, 1 for the front, 1 for the back

			for ( b = 0; b < bevelSegments; b ++ ) {

				//for ( b = bevelSegments; b > 0; b -- ) {

				t = b / bevelSegments;
				z = bevelThickness * Math.cos( t * Math.PI / 2 );
				bs = bevelSize * Math.sin( t * Math.PI / 2 );

				// contract shape

				for ( i = 0, il = contour.length; i < il; i ++ ) {

					vert = scalePt2( contour[ i ], contourMovements[ i ], bs );

					v( vert.x, vert.y, - z );

				}

				// expand holes

				for ( h = 0, hl = holes.length; h < hl; h ++ ) {

					ahole = holes[ h ];
					oneHoleMovements = holesMovements[ h ];

					for ( i = 0, il = ahole.length; i < il; i ++ ) {

						vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

						v( vert.x, vert.y, - z );

					}

				}

			}

			bs = bevelSize;

			// Back facing vertices

			for ( i = 0; i < vlen; i ++ ) {

				vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

				if ( ! extrudeByPath ) {

					v( vert.x, vert.y, 0 );

				} else {

					// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );

					normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );
					binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );

					position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );

					v( position2.x, position2.y, position2.z );

				}

			}

			// Add stepped vertices...
			// Including front facing vertices

			var s;

			for ( s = 1; s <= steps; s ++ ) {

				for ( i = 0; i < vlen; i ++ ) {

					vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

					if ( ! extrudeByPath ) {

						v( vert.x, vert.y, depth / steps * s );

					} else {

						// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );

						normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );
						binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );

						position2.copy( extrudePts[ s ] ).add( normal ).add( binormal );

						v( position2.x, position2.y, position2.z );

					}

				}

			}


			// Add bevel segments planes

			//for ( b = 1; b <= bevelSegments; b ++ ) {
			for ( b = bevelSegments - 1; b >= 0; b -- ) {

				t = b / bevelSegments;
				z = bevelThickness * Math.cos( t * Math.PI / 2 );
				bs = bevelSize * Math.sin( t * Math.PI / 2 );

				// contract shape

				for ( i = 0, il = contour.length; i < il; i ++ ) {

					vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
					v( vert.x, vert.y, depth + z );

				}

				// expand holes

				for ( h = 0, hl = holes.length; h < hl; h ++ ) {

					ahole = holes[ h ];
					oneHoleMovements = holesMovements[ h ];

					for ( i = 0, il = ahole.length; i < il; i ++ ) {

						vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

						if ( ! extrudeByPath ) {

							v( vert.x, vert.y, depth + z );

						} else {

							v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );

						}

					}

				}

			}

			/* Faces */

			// Top and bottom faces

			buildLidFaces();

			// Sides faces

			buildSideFaces();


			/////  Internal functions

			function buildLidFaces() {

				var start = verticesArray.length / 3;

				if ( bevelEnabled ) {

					var layer = 0; // steps + 1
					var offset = vlen * layer;

					// Bottom faces

					for ( i = 0; i < flen; i ++ ) {

						face = faces[ i ];
						f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );

					}

					layer = steps + bevelSegments * 2;
					offset = vlen * layer;

					// Top faces

					for ( i = 0; i < flen; i ++ ) {

						face = faces[ i ];
						f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );

					}

				} else {

					// Bottom faces

					for ( i = 0; i < flen; i ++ ) {

						face = faces[ i ];
						f3( face[ 2 ], face[ 1 ], face[ 0 ] );

					}

					// Top faces

					for ( i = 0; i < flen; i ++ ) {

						face = faces[ i ];
						f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );

					}

				}

				scope.addGroup( start, verticesArray.length / 3 - start, 0 );

			}

			// Create faces for the z-sides of the shape

			function buildSideFaces() {

				var start = verticesArray.length / 3;
				var layeroffset = 0;
				sidewalls( contour, layeroffset );
				layeroffset += contour.length;

				for ( h = 0, hl = holes.length; h < hl; h ++ ) {

					ahole = holes[ h ];
					sidewalls( ahole, layeroffset );

					//, true
					layeroffset += ahole.length;

				}


				scope.addGroup( start, verticesArray.length / 3 - start, 1 );


			}

			function sidewalls( contour, layeroffset ) {

				var j, k;
				i = contour.length;

				while ( -- i >= 0 ) {

					j = i;
					k = i - 1;
					if ( k < 0 ) k = contour.length - 1;

					//console.log('b', i,j, i-1, k,vertices.length);

					var s = 0,
						sl = steps + bevelSegments * 2;

					for ( s = 0; s < sl; s ++ ) {

						var slen1 = vlen * s;
						var slen2 = vlen * ( s + 1 );

						var a = layeroffset + j + slen1,
							b = layeroffset + k + slen1,
							c = layeroffset + k + slen2,
							d = layeroffset + j + slen2;

						f4( a, b, c, d );

					}

				}

			}

			function v( x, y, z ) {

				placeholder.push( x );
				placeholder.push( y );
				placeholder.push( z );

			}


			function f3( a, b, c ) {

				addVertex( a );
				addVertex( b );
				addVertex( c );

				var nextIndex = verticesArray.length / 3;
				var uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );

				addUV( uvs[ 0 ] );
				addUV( uvs[ 1 ] );
				addUV( uvs[ 2 ] );

			}

			function f4( a, b, c, d ) {

				addVertex( a );
				addVertex( b );
				addVertex( d );

				addVertex( b );
				addVertex( c );
				addVertex( d );


				var nextIndex = verticesArray.length / 3;
				var uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );

				addUV( uvs[ 0 ] );
				addUV( uvs[ 1 ] );
				addUV( uvs[ 3 ] );

				addUV( uvs[ 1 ] );
				addUV( uvs[ 2 ] );
				addUV( uvs[ 3 ] );

			}

			function addVertex( index ) {

				verticesArray.push( placeholder[ index * 3 + 0 ] );
				verticesArray.push( placeholder[ index * 3 + 1 ] );
				verticesArray.push( placeholder[ index * 3 + 2 ] );

			}


			function addUV( vector2 ) {

				uvArray.push( vector2.x );
				uvArray.push( vector2.y );

			}

		}

	}

	ExtrudeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	ExtrudeBufferGeometry.prototype.constructor = ExtrudeBufferGeometry;

	ExtrudeBufferGeometry.prototype.toJSON = function () {

		var data = BufferGeometry.prototype.toJSON.call( this );

		var shapes = this.parameters.shapes;
		var options = this.parameters.options;

		return toJSON( shapes, options, data );

	};

	//

	var WorldUVGenerator = {

		generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {

			var a_x = vertices[ indexA * 3 ];
			var a_y = vertices[ indexA * 3 + 1 ];
			var b_x = vertices[ indexB * 3 ];
			var b_y = vertices[ indexB * 3 + 1 ];
			var c_x = vertices[ indexC * 3 ];
			var c_y = vertices[ indexC * 3 + 1 ];

			return [
				new Vector2( a_x, a_y ),
				new Vector2( b_x, b_y ),
				new Vector2( c_x, c_y )
			];

		},

		generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {

			var a_x = vertices[ indexA * 3 ];
			var a_y = vertices[ indexA * 3 + 1 ];
			var a_z = vertices[ indexA * 3 + 2 ];
			var b_x = vertices[ indexB * 3 ];
			var b_y = vertices[ indexB * 3 + 1 ];
			var b_z = vertices[ indexB * 3 + 2 ];
			var c_x = vertices[ indexC * 3 ];
			var c_y = vertices[ indexC * 3 + 1 ];
			var c_z = vertices[ indexC * 3 + 2 ];
			var d_x = vertices[ indexD * 3 ];
			var d_y = vertices[ indexD * 3 + 1 ];
			var d_z = vertices[ indexD * 3 + 2 ];

			if ( Math.abs( a_y - b_y ) < 0.01 ) {

				return [
					new Vector2( a_x, 1 - a_z ),
					new Vector2( b_x, 1 - b_z ),
					new Vector2( c_x, 1 - c_z ),
					new Vector2( d_x, 1 - d_z )
				];

			} else {

				return [
					new Vector2( a_y, 1 - a_z ),
					new Vector2( b_y, 1 - b_z ),
					new Vector2( c_y, 1 - c_z ),
					new Vector2( d_y, 1 - d_z )
				];

			}

		}
	};

	function toJSON( shapes, options, data ) {

		//

		data.shapes = [];

		if ( Array.isArray( shapes ) ) {

			for ( var i = 0, l = shapes.length; i < l; i ++ ) {

				var shape = shapes[ i ];

				data.shapes.push( shape.uuid );

			}

		} else {

			data.shapes.push( shapes.uuid );

		}

		//

		if ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON();

		return data;

	}

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * Text = 3D Text
	 *
	 * parameters = {
	 *  font: <THREE.Font>, // font
	 *
	 *  size: <float>, // size of the text
	 *  height: <float>, // thickness to extrude text
	 *  curveSegments: <int>, // number of points on the curves
	 *
	 *  bevelEnabled: <bool>, // turn on bevel
	 *  bevelThickness: <float>, // how deep into text bevel goes
	 *  bevelSize: <float> // how far from text outline is bevel
	 * }
	 */

	// TextGeometry

	function TextGeometry( text, parameters ) {

		Geometry.call( this );

		this.type = 'TextGeometry';

		this.parameters = {
			text: text,
			parameters: parameters
		};

		this.fromBufferGeometry( new TextBufferGeometry( text, parameters ) );
		this.mergeVertices();

	}

	TextGeometry.prototype = Object.create( Geometry.prototype );
	TextGeometry.prototype.constructor = TextGeometry;

	// TextBufferGeometry

	function TextBufferGeometry( text, parameters ) {

		parameters = parameters || {};

		var font = parameters.font;

		if ( ! ( font && font.isFont ) ) {

			console.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' );
			return new Geometry();

		}

		var shapes = font.generateShapes( text, parameters.size );

		// translate parameters to ExtrudeGeometry API

		parameters.depth = parameters.height !== undefined ? parameters.height : 50;

		// defaults

		if ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10;
		if ( parameters.bevelSize === undefined ) parameters.bevelSize = 8;
		if ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false;

		ExtrudeBufferGeometry.call( this, shapes, parameters );

		this.type = 'TextBufferGeometry';

	}

	TextBufferGeometry.prototype = Object.create( ExtrudeBufferGeometry.prototype );
	TextBufferGeometry.prototype.constructor = TextBufferGeometry;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author benaadams / https://twitter.com/ben_a_adams
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// SphereGeometry

	function SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {

		Geometry.call( this );

		this.type = 'SphereGeometry';

		this.parameters = {
			radius: radius,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			phiStart: phiStart,
			phiLength: phiLength,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		this.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );
		this.mergeVertices();

	}

	SphereGeometry.prototype = Object.create( Geometry.prototype );
	SphereGeometry.prototype.constructor = SphereGeometry;

	// SphereBufferGeometry

	function SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {

		BufferGeometry.call( this );

		this.type = 'SphereBufferGeometry';

		this.parameters = {
			radius: radius,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			phiStart: phiStart,
			phiLength: phiLength,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		radius = radius || 1;

		widthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );
		heightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );

		phiStart = phiStart !== undefined ? phiStart : 0;
		phiLength = phiLength !== undefined ? phiLength : Math.PI * 2;

		thetaStart = thetaStart !== undefined ? thetaStart : 0;
		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI;

		var thetaEnd = thetaStart + thetaLength;

		var ix, iy;

		var index = 0;
		var grid = [];

		var vertex = new Vector3();
		var normal = new Vector3();

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// generate vertices, normals and uvs

		for ( iy = 0; iy <= heightSegments; iy ++ ) {

			var verticesRow = [];

			var v = iy / heightSegments;

			for ( ix = 0; ix <= widthSegments; ix ++ ) {

				var u = ix / widthSegments;

				// vertex

				vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
				vertex.y = radius * Math.cos( thetaStart + v * thetaLength );
				vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				normal.set( vertex.x, vertex.y, vertex.z ).normalize();
				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( u, 1 - v );

				verticesRow.push( index ++ );

			}

			grid.push( verticesRow );

		}

		// indices

		for ( iy = 0; iy < heightSegments; iy ++ ) {

			for ( ix = 0; ix < widthSegments; ix ++ ) {

				var a = grid[ iy ][ ix + 1 ];
				var b = grid[ iy ][ ix ];
				var c = grid[ iy + 1 ][ ix ];
				var d = grid[ iy + 1 ][ ix + 1 ];

				if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );
				if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	SphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	SphereBufferGeometry.prototype.constructor = SphereBufferGeometry;

	/**
	 * @author Kaleb Murphy
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// RingGeometry

	function RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {

		Geometry.call( this );

		this.type = 'RingGeometry';

		this.parameters = {
			innerRadius: innerRadius,
			outerRadius: outerRadius,
			thetaSegments: thetaSegments,
			phiSegments: phiSegments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		this.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) );
		this.mergeVertices();

	}

	RingGeometry.prototype = Object.create( Geometry.prototype );
	RingGeometry.prototype.constructor = RingGeometry;

	// RingBufferGeometry

	function RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {

		BufferGeometry.call( this );

		this.type = 'RingBufferGeometry';

		this.parameters = {
			innerRadius: innerRadius,
			outerRadius: outerRadius,
			thetaSegments: thetaSegments,
			phiSegments: phiSegments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		innerRadius = innerRadius || 0.5;
		outerRadius = outerRadius || 1;

		thetaStart = thetaStart !== undefined ? thetaStart : 0;
		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;

		thetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;
		phiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// some helper variables

		var segment;
		var radius = innerRadius;
		var radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );
		var vertex = new Vector3();
		var uv = new Vector2();
		var j, i;

		// generate vertices, normals and uvs

		for ( j = 0; j <= phiSegments; j ++ ) {

			for ( i = 0; i <= thetaSegments; i ++ ) {

				// values are generate from the inside of the ring to the outside

				segment = thetaStart + i / thetaSegments * thetaLength;

				// vertex

				vertex.x = radius * Math.cos( segment );
				vertex.y = radius * Math.sin( segment );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				normals.push( 0, 0, 1 );

				// uv

				uv.x = ( vertex.x / outerRadius + 1 ) / 2;
				uv.y = ( vertex.y / outerRadius + 1 ) / 2;

				uvs.push( uv.x, uv.y );

			}

			// increase the radius for next row of vertices

			radius += radiusStep;

		}

		// indices

		for ( j = 0; j < phiSegments; j ++ ) {

			var thetaSegmentLevel = j * ( thetaSegments + 1 );

			for ( i = 0; i < thetaSegments; i ++ ) {

				segment = i + thetaSegmentLevel;

				var a = segment;
				var b = segment + thetaSegments + 1;
				var c = segment + thetaSegments + 2;
				var d = segment + 1;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	RingBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	RingBufferGeometry.prototype.constructor = RingBufferGeometry;

	/**
	 * @author zz85 / https://github.com/zz85
	 * @author bhouston / http://clara.io
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// LatheGeometry

	function LatheGeometry( points, segments, phiStart, phiLength ) {

		Geometry.call( this );

		this.type = 'LatheGeometry';

		this.parameters = {
			points: points,
			segments: segments,
			phiStart: phiStart,
			phiLength: phiLength
		};

		this.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) );
		this.mergeVertices();

	}

	LatheGeometry.prototype = Object.create( Geometry.prototype );
	LatheGeometry.prototype.constructor = LatheGeometry;

	// LatheBufferGeometry

	function LatheBufferGeometry( points, segments, phiStart, phiLength ) {

		BufferGeometry.call( this );

		this.type = 'LatheBufferGeometry';

		this.parameters = {
			points: points,
			segments: segments,
			phiStart: phiStart,
			phiLength: phiLength
		};

		segments = Math.floor( segments ) || 12;
		phiStart = phiStart || 0;
		phiLength = phiLength || Math.PI * 2;

		// clamp phiLength so it's in range of [ 0, 2PI ]

		phiLength = _Math.clamp( phiLength, 0, Math.PI * 2 );


		// buffers

		var indices = [];
		var vertices = [];
		var uvs = [];

		// helper variables

		var base;
		var inverseSegments = 1.0 / segments;
		var vertex = new Vector3();
		var uv = new Vector2();
		var i, j;

		// generate vertices and uvs

		for ( i = 0; i <= segments; i ++ ) {

			var phi = phiStart + i * inverseSegments * phiLength;

			var sin = Math.sin( phi );
			var cos = Math.cos( phi );

			for ( j = 0; j <= ( points.length - 1 ); j ++ ) {

				// vertex

				vertex.x = points[ j ].x * sin;
				vertex.y = points[ j ].y;
				vertex.z = points[ j ].x * cos;

				vertices.push( vertex.x, vertex.y, vertex.z );

				// uv

				uv.x = i / segments;
				uv.y = j / ( points.length - 1 );

				uvs.push( uv.x, uv.y );


			}

		}

		// indices

		for ( i = 0; i < segments; i ++ ) {

			for ( j = 0; j < ( points.length - 1 ); j ++ ) {

				base = j + i * points.length;

				var a = base;
				var b = base + points.length;
				var c = base + points.length + 1;
				var d = base + 1;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		// generate normals

		this.computeVertexNormals();

		// if the geometry is closed, we need to average the normals along the seam.
		// because the corresponding vertices are identical (but still have different UVs).

		if ( phiLength === Math.PI * 2 ) {

			var normals = this.attributes.normal.array;
			var n1 = new Vector3();
			var n2 = new Vector3();
			var n = new Vector3();

			// this is the buffer offset for the last line of vertices

			base = segments * points.length * 3;

			for ( i = 0, j = 0; i < points.length; i ++, j += 3 ) {

				// select the normal of the vertex in the first line

				n1.x = normals[ j + 0 ];
				n1.y = normals[ j + 1 ];
				n1.z = normals[ j + 2 ];

				// select the normal of the vertex in the last line

				n2.x = normals[ base + j + 0 ];
				n2.y = normals[ base + j + 1 ];
				n2.z = normals[ base + j + 2 ];

				// average normals

				n.addVectors( n1, n2 ).normalize();

				// assign the new values to both normals

				normals[ j + 0 ] = normals[ base + j + 0 ] = n.x;
				normals[ j + 1 ] = normals[ base + j + 1 ] = n.y;
				normals[ j + 2 ] = normals[ base + j + 2 ] = n.z;

			}

		}

	}

	LatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	LatheBufferGeometry.prototype.constructor = LatheBufferGeometry;

	/**
	 * @author jonobr1 / http://jonobr1.com
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// ShapeGeometry

	function ShapeGeometry( shapes, curveSegments ) {

		Geometry.call( this );

		this.type = 'ShapeGeometry';

		if ( typeof curveSegments === 'object' ) {

			console.warn( 'THREE.ShapeGeometry: Options parameter has been removed.' );

			curveSegments = curveSegments.curveSegments;

		}

		this.parameters = {
			shapes: shapes,
			curveSegments: curveSegments
		};

		this.fromBufferGeometry( new ShapeBufferGeometry( shapes, curveSegments ) );
		this.mergeVertices();

	}

	ShapeGeometry.prototype = Object.create( Geometry.prototype );
	ShapeGeometry.prototype.constructor = ShapeGeometry;

	ShapeGeometry.prototype.toJSON = function () {

		var data = Geometry.prototype.toJSON.call( this );

		var shapes = this.parameters.shapes;

		return toJSON$1( shapes, data );

	};

	// ShapeBufferGeometry

	function ShapeBufferGeometry( shapes, curveSegments ) {

		BufferGeometry.call( this );

		this.type = 'ShapeBufferGeometry';

		this.parameters = {
			shapes: shapes,
			curveSegments: curveSegments
		};

		curveSegments = curveSegments || 12;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var groupStart = 0;
		var groupCount = 0;

		// allow single and array values for "shapes" parameter

		if ( Array.isArray( shapes ) === false ) {

			addShape( shapes );

		} else {

			for ( var i = 0; i < shapes.length; i ++ ) {

				addShape( shapes[ i ] );

				this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support

				groupStart += groupCount;
				groupCount = 0;

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );


		// helper functions

		function addShape( shape ) {

			var i, l, shapeHole;

			var indexOffset = vertices.length / 3;
			var points = shape.extractPoints( curveSegments );

			var shapeVertices = points.shape;
			var shapeHoles = points.holes;

			// check direction of vertices

			if ( ShapeUtils.isClockWise( shapeVertices ) === false ) {

				shapeVertices = shapeVertices.reverse();

				// also check if holes are in the opposite direction

				for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {

					shapeHole = shapeHoles[ i ];

					if ( ShapeUtils.isClockWise( shapeHole ) === true ) {

						shapeHoles[ i ] = shapeHole.reverse();

					}

				}

			}

			var faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );

			// join vertices of inner and outer paths to a single array

			for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {

				shapeHole = shapeHoles[ i ];
				shapeVertices = shapeVertices.concat( shapeHole );

			}

			// vertices, normals, uvs

			for ( i = 0, l = shapeVertices.length; i < l; i ++ ) {

				var vertex = shapeVertices[ i ];

				vertices.push( vertex.x, vertex.y, 0 );
				normals.push( 0, 0, 1 );
				uvs.push( vertex.x, vertex.y ); // world uvs

			}

			// incides

			for ( i = 0, l = faces.length; i < l; i ++ ) {

				var face = faces[ i ];

				var a = face[ 0 ] + indexOffset;
				var b = face[ 1 ] + indexOffset;
				var c = face[ 2 ] + indexOffset;

				indices.push( a, b, c );
				groupCount += 3;

			}

		}

	}

	ShapeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	ShapeBufferGeometry.prototype.constructor = ShapeBufferGeometry;

	ShapeBufferGeometry.prototype.toJSON = function () {

		var data = BufferGeometry.prototype.toJSON.call( this );

		var shapes = this.parameters.shapes;

		return toJSON$1( shapes, data );

	};

	//

	function toJSON$1( shapes, data ) {

		data.shapes = [];

		if ( Array.isArray( shapes ) ) {

			for ( var i = 0, l = shapes.length; i < l; i ++ ) {

				var shape = shapes[ i ];

				data.shapes.push( shape.uuid );

			}

		} else {

			data.shapes.push( shapes.uuid );

		}

		return data;

	}

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function EdgesGeometry( geometry, thresholdAngle ) {

		BufferGeometry.call( this );

		this.type = 'EdgesGeometry';

		this.parameters = {
			thresholdAngle: thresholdAngle
		};

		thresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;

		// buffer

		var vertices = [];

		// helper variables

		var thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle );
		var edge = [ 0, 0 ], edges = {}, edge1, edge2;
		var key, keys = [ 'a', 'b', 'c' ];

		// prepare source geometry

		var geometry2;

		if ( geometry.isBufferGeometry ) {

			geometry2 = new Geometry();
			geometry2.fromBufferGeometry( geometry );

		} else {

			geometry2 = geometry.clone();

		}

		geometry2.mergeVertices();
		geometry2.computeFaceNormals();

		var sourceVertices = geometry2.vertices;
		var faces = geometry2.faces;

		// now create a data structure where each entry represents an edge with its adjoining faces

		for ( var i = 0, l = faces.length; i < l; i ++ ) {

			var face = faces[ i ];

			for ( var j = 0; j < 3; j ++ ) {

				edge1 = face[ keys[ j ] ];
				edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
				edge[ 0 ] = Math.min( edge1, edge2 );
				edge[ 1 ] = Math.max( edge1, edge2 );

				key = edge[ 0 ] + ',' + edge[ 1 ];

				if ( edges[ key ] === undefined ) {

					edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ], face1: i, face2: undefined };

				} else {

					edges[ key ].face2 = i;

				}

			}

		}

		// generate vertices

		for ( key in edges ) {

			var e = edges[ key ];

			// an edge is only rendered if the angle (in degrees) between the face normals of the adjoining faces exceeds this value. default = 1 degree.

			if ( e.face2 === undefined || faces[ e.face1 ].normal.dot( faces[ e.face2 ].normal ) <= thresholdDot ) {

				var vertex = sourceVertices[ e.index1 ];
				vertices.push( vertex.x, vertex.y, vertex.z );

				vertex = sourceVertices[ e.index2 ];
				vertices.push( vertex.x, vertex.y, vertex.z );

			}

		}

		// build geometry

		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );

	}

	EdgesGeometry.prototype = Object.create( BufferGeometry.prototype );
	EdgesGeometry.prototype.constructor = EdgesGeometry;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// CylinderGeometry

	function CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

		Geometry.call( this );

		this.type = 'CylinderGeometry';

		this.parameters = {
			radiusTop: radiusTop,
			radiusBottom: radiusBottom,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		this.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) );
		this.mergeVertices();

	}

	CylinderGeometry.prototype = Object.create( Geometry.prototype );
	CylinderGeometry.prototype.constructor = CylinderGeometry;

	// CylinderBufferGeometry

	function CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

		BufferGeometry.call( this );

		this.type = 'CylinderBufferGeometry';

		this.parameters = {
			radiusTop: radiusTop,
			radiusBottom: radiusBottom,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		var scope = this;

		radiusTop = radiusTop !== undefined ? radiusTop : 1;
		radiusBottom = radiusBottom !== undefined ? radiusBottom : 1;
		height = height || 1;

		radialSegments = Math.floor( radialSegments ) || 8;
		heightSegments = Math.floor( heightSegments ) || 1;

		openEnded = openEnded !== undefined ? openEnded : false;
		thetaStart = thetaStart !== undefined ? thetaStart : 0.0;
		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var index = 0;
		var indexArray = [];
		var halfHeight = height / 2;
		var groupStart = 0;

		// generate geometry

		generateTorso();

		if ( openEnded === false ) {

			if ( radiusTop > 0 ) generateCap( true );
			if ( radiusBottom > 0 ) generateCap( false );

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		function generateTorso() {

			var x, y;
			var normal = new Vector3();
			var vertex = new Vector3();

			var groupCount = 0;

			// this will be used to calculate the normal
			var slope = ( radiusBottom - radiusTop ) / height;

			// generate vertices, normals and uvs

			for ( y = 0; y <= heightSegments; y ++ ) {

				var indexRow = [];

				var v = y / heightSegments;

				// calculate the radius of the current row

				var radius = v * ( radiusBottom - radiusTop ) + radiusTop;

				for ( x = 0; x <= radialSegments; x ++ ) {

					var u = x / radialSegments;

					var theta = u * thetaLength + thetaStart;

					var sinTheta = Math.sin( theta );
					var cosTheta = Math.cos( theta );

					// vertex

					vertex.x = radius * sinTheta;
					vertex.y = - v * height + halfHeight;
					vertex.z = radius * cosTheta;
					vertices.push( vertex.x, vertex.y, vertex.z );

					// normal

					normal.set( sinTheta, slope, cosTheta ).normalize();
					normals.push( normal.x, normal.y, normal.z );

					// uv

					uvs.push( u, 1 - v );

					// save index of vertex in respective row

					indexRow.push( index ++ );

				}

				// now save vertices of the row in our index array

				indexArray.push( indexRow );

			}

			// generate indices

			for ( x = 0; x < radialSegments; x ++ ) {

				for ( y = 0; y < heightSegments; y ++ ) {

					// we use the index array to access the correct indices

					var a = indexArray[ y ][ x ];
					var b = indexArray[ y + 1 ][ x ];
					var c = indexArray[ y + 1 ][ x + 1 ];
					var d = indexArray[ y ][ x + 1 ];

					// faces

					indices.push( a, b, d );
					indices.push( b, c, d );

					// update group counter

					groupCount += 6;

				}

			}

			// add a group to the geometry. this will ensure multi material support

			scope.addGroup( groupStart, groupCount, 0 );

			// calculate new start value for groups

			groupStart += groupCount;

		}

		function generateCap( top ) {

			var x, centerIndexStart, centerIndexEnd;

			var uv = new Vector2();
			var vertex = new Vector3();

			var groupCount = 0;

			var radius = ( top === true ) ? radiusTop : radiusBottom;
			var sign = ( top === true ) ? 1 : - 1;

			// save the index of the first center vertex
			centerIndexStart = index;

			// first we generate the center vertex data of the cap.
			// because the geometry needs one set of uvs per face,
			// we must generate a center vertex per face/segment

			for ( x = 1; x <= radialSegments; x ++ ) {

				// vertex

				vertices.push( 0, halfHeight * sign, 0 );

				// normal

				normals.push( 0, sign, 0 );

				// uv

				uvs.push( 0.5, 0.5 );

				// increase index

				index ++;

			}

			// save the index of the last center vertex

			centerIndexEnd = index;

			// now we generate the surrounding vertices, normals and uvs

			for ( x = 0; x <= radialSegments; x ++ ) {

				var u = x / radialSegments;
				var theta = u * thetaLength + thetaStart;

				var cosTheta = Math.cos( theta );
				var sinTheta = Math.sin( theta );

				// vertex

				vertex.x = radius * sinTheta;
				vertex.y = halfHeight * sign;
				vertex.z = radius * cosTheta;
				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				normals.push( 0, sign, 0 );

				// uv

				uv.x = ( cosTheta * 0.5 ) + 0.5;
				uv.y = ( sinTheta * 0.5 * sign ) + 0.5;
				uvs.push( uv.x, uv.y );

				// increase index

				index ++;

			}

			// generate indices

			for ( x = 0; x < radialSegments; x ++ ) {

				var c = centerIndexStart + x;
				var i = centerIndexEnd + x;

				if ( top === true ) {

					// face top

					indices.push( i, i + 1, c );

				} else {

					// face bottom

					indices.push( i + 1, i, c );

				}

				groupCount += 3;

			}

			// add a group to the geometry. this will ensure multi material support

			scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );

			// calculate new start value for groups

			groupStart += groupCount;

		}

	}

	CylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	CylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry;

	/**
	 * @author abelnation / http://github.com/abelnation
	 */

	// ConeGeometry

	function ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

		CylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );

		this.type = 'ConeGeometry';

		this.parameters = {
			radius: radius,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

	}

	ConeGeometry.prototype = Object.create( CylinderGeometry.prototype );
	ConeGeometry.prototype.constructor = ConeGeometry;

	// ConeBufferGeometry

	function ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

		CylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );

		this.type = 'ConeBufferGeometry';

		this.parameters = {
			radius: radius,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

	}

	ConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype );
	ConeBufferGeometry.prototype.constructor = ConeBufferGeometry;

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 * @author Mugen87 / https://github.com/Mugen87
	 * @author hughes
	 */

	// CircleGeometry

	function CircleGeometry( radius, segments, thetaStart, thetaLength ) {

		Geometry.call( this );

		this.type = 'CircleGeometry';

		this.parameters = {
			radius: radius,
			segments: segments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		this.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );
		this.mergeVertices();

	}

	CircleGeometry.prototype = Object.create( Geometry.prototype );
	CircleGeometry.prototype.constructor = CircleGeometry;

	// CircleBufferGeometry

	function CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) {

		BufferGeometry.call( this );

		this.type = 'CircleBufferGeometry';

		this.parameters = {
			radius: radius,
			segments: segments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		radius = radius || 1;
		segments = segments !== undefined ? Math.max( 3, segments ) : 8;

		thetaStart = thetaStart !== undefined ? thetaStart : 0;
		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var i, s;
		var vertex = new Vector3();
		var uv = new Vector2();

		// center point

		vertices.push( 0, 0, 0 );
		normals.push( 0, 0, 1 );
		uvs.push( 0.5, 0.5 );

		for ( s = 0, i = 3; s <= segments; s ++, i += 3 ) {

			var segment = thetaStart + s / segments * thetaLength;

			// vertex

			vertex.x = radius * Math.cos( segment );
			vertex.y = radius * Math.sin( segment );

			vertices.push( vertex.x, vertex.y, vertex.z );

			// normal

			normals.push( 0, 0, 1 );

			// uvs

			uv.x = ( vertices[ i ] / radius + 1 ) / 2;
			uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;

			uvs.push( uv.x, uv.y );

		}

		// indices

		for ( i = 1; i <= segments; i ++ ) {

			indices.push( i, i + 1, 0 );

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	CircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	CircleBufferGeometry.prototype.constructor = CircleBufferGeometry;



	var Geometries = /*#__PURE__*/Object.freeze({
		WireframeGeometry: WireframeGeometry,
		ParametricGeometry: ParametricGeometry,
		ParametricBufferGeometry: ParametricBufferGeometry,
		TetrahedronGeometry: TetrahedronGeometry,
		TetrahedronBufferGeometry: TetrahedronBufferGeometry,
		OctahedronGeometry: OctahedronGeometry,
		OctahedronBufferGeometry: OctahedronBufferGeometry,
		IcosahedronGeometry: IcosahedronGeometry,
		IcosahedronBufferGeometry: IcosahedronBufferGeometry,
		DodecahedronGeometry: DodecahedronGeometry,
		DodecahedronBufferGeometry: DodecahedronBufferGeometry,
		PolyhedronGeometry: PolyhedronGeometry,
		PolyhedronBufferGeometry: PolyhedronBufferGeometry,
		TubeGeometry: TubeGeometry,
		TubeBufferGeometry: TubeBufferGeometry,
		TorusKnotGeometry: TorusKnotGeometry,
		TorusKnotBufferGeometry: TorusKnotBufferGeometry,
		TorusGeometry: TorusGeometry,
		TorusBufferGeometry: TorusBufferGeometry,
		TextGeometry: TextGeometry,
		TextBufferGeometry: TextBufferGeometry,
		SphereGeometry: SphereGeometry,
		SphereBufferGeometry: SphereBufferGeometry,
		RingGeometry: RingGeometry,
		RingBufferGeometry: RingBufferGeometry,
		PlaneGeometry: PlaneGeometry,
		PlaneBufferGeometry: PlaneBufferGeometry,
		LatheGeometry: LatheGeometry,
		LatheBufferGeometry: LatheBufferGeometry,
		ShapeGeometry: ShapeGeometry,
		ShapeBufferGeometry: ShapeBufferGeometry,
		ExtrudeGeometry: ExtrudeGeometry,
		ExtrudeBufferGeometry: ExtrudeBufferGeometry,
		EdgesGeometry: EdgesGeometry,
		ConeGeometry: ConeGeometry,
		ConeBufferGeometry: ConeBufferGeometry,
		CylinderGeometry: CylinderGeometry,
		CylinderBufferGeometry: CylinderBufferGeometry,
		CircleGeometry: CircleGeometry,
		CircleBufferGeometry: CircleBufferGeometry,
		BoxGeometry: BoxGeometry,
		BoxBufferGeometry: BoxBufferGeometry
	});

	/**
	 * @author mrdoob / http://mrdoob.com/
	 *
	 * parameters = {
	 *  color: <THREE.Color>
	 * }
	 */

	function ShadowMaterial( parameters ) {

		Material.call( this );

		this.type = 'ShadowMaterial';

		this.color = new Color( 0x000000 );
		this.transparent = true;

		this.setValues( parameters );

	}

	ShadowMaterial.prototype = Object.create( Material.prototype );
	ShadowMaterial.prototype.constructor = ShadowMaterial;

	ShadowMaterial.prototype.isShadowMaterial = true;

	ShadowMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		return this;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function RawShaderMaterial( parameters ) {

		ShaderMaterial.call( this, parameters );

		this.type = 'RawShaderMaterial';

	}

	RawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype );
	RawShaderMaterial.prototype.constructor = RawShaderMaterial;

	RawShaderMaterial.prototype.isRawShaderMaterial = true;

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  roughness: <float>,
	 *  metalness: <float>,
	 *  opacity: <float>,
	 *
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  lightMap: new THREE.Texture( <Image> ),
	 *  lightMapIntensity: <float>
	 *
	 *  aoMap: new THREE.Texture( <Image> ),
	 *  aoMapIntensity: <float>
	 *
	 *  emissive: <hex>,
	 *  emissiveIntensity: <float>
	 *  emissiveMap: new THREE.Texture( <Image> ),
	 *
	 *  bumpMap: new THREE.Texture( <Image> ),
	 *  bumpScale: <float>,
	 *
	 *  normalMap: new THREE.Texture( <Image> ),
	 *  normalMapType: THREE.TangentSpaceNormalMap,
	 *  normalScale: <Vector2>,
	 *
	 *  displacementMap: new THREE.Texture( <Image> ),
	 *  displacementScale: <float>,
	 *  displacementBias: <float>,
	 *
	 *  roughnessMap: new THREE.Texture( <Image> ),
	 *
	 *  metalnessMap: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
	 *  envMapIntensity: <float>
	 *
	 *  refractionRatio: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function MeshStandardMaterial( parameters ) {

		Material.call( this );

		this.defines = { 'STANDARD': '' };

		this.type = 'MeshStandardMaterial';

		this.color = new Color( 0xffffff ); // diffuse
		this.roughness = 0.5;
		this.metalness = 0.5;

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.roughnessMap = null;

		this.metalnessMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.envMapIntensity = 1.0;

		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.skinning = false;
		this.morphTargets = false;
		this.morphNormals = false;

		this.setValues( parameters );

	}

	MeshStandardMaterial.prototype = Object.create( Material.prototype );
	MeshStandardMaterial.prototype.constructor = MeshStandardMaterial;

	MeshStandardMaterial.prototype.isMeshStandardMaterial = true;

	MeshStandardMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.defines = { 'STANDARD': '' };

		this.color.copy( source.color );
		this.roughness = source.roughness;
		this.metalness = source.metalness;

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.roughnessMap = source.roughnessMap;

		this.metalnessMap = source.metalnessMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.envMapIntensity = source.envMapIntensity;

		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		return this;

	};

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * parameters = {
	 *  reflectivity: <float>
	 * }
	 */

	function MeshPhysicalMaterial( parameters ) {

		MeshStandardMaterial.call( this );

		this.defines = { 'PHYSICAL': '' };

		this.type = 'MeshPhysicalMaterial';

		this.reflectivity = 0.5; // maps to F0 = 0.04

		this.clearCoat = 0.0;
		this.clearCoatRoughness = 0.0;

		this.setValues( parameters );

	}

	MeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype );
	MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;

	MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;

	MeshPhysicalMaterial.prototype.copy = function ( source ) {

		MeshStandardMaterial.prototype.copy.call( this, source );

		this.defines = { 'PHYSICAL': '' };

		this.reflectivity = source.reflectivity;

		this.clearCoat = source.clearCoat;
		this.clearCoatRoughness = source.clearCoatRoughness;

		return this;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  specular: <hex>,
	 *  shininess: <float>,
	 *  opacity: <float>,
	 *
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  lightMap: new THREE.Texture( <Image> ),
	 *  lightMapIntensity: <float>
	 *
	 *  aoMap: new THREE.Texture( <Image> ),
	 *  aoMapIntensity: <float>
	 *
	 *  emissive: <hex>,
	 *  emissiveIntensity: <float>
	 *  emissiveMap: new THREE.Texture( <Image> ),
	 *
	 *  bumpMap: new THREE.Texture( <Image> ),
	 *  bumpScale: <float>,
	 *
	 *  normalMap: new THREE.Texture( <Image> ),
	 *  normalMapType: THREE.TangentSpaceNormalMap,
	 *  normalScale: <Vector2>,
	 *
	 *  displacementMap: new THREE.Texture( <Image> ),
	 *  displacementScale: <float>,
	 *  displacementBias: <float>,
	 *
	 *  specularMap: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
	 *  combine: THREE.Multiply,
	 *  reflectivity: <float>,
	 *  refractionRatio: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function MeshPhongMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshPhongMaterial';

		this.color = new Color( 0xffffff ); // diffuse
		this.specular = new Color( 0x111111 );
		this.shininess = 30;

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.specularMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.skinning = false;
		this.morphTargets = false;
		this.morphNormals = false;

		this.setValues( parameters );

	}

	MeshPhongMaterial.prototype = Object.create( Material.prototype );
	MeshPhongMaterial.prototype.constructor = MeshPhongMaterial;

	MeshPhongMaterial.prototype.isMeshPhongMaterial = true;

	MeshPhongMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );
		this.specular.copy( source.specular );
		this.shininess = source.shininess;

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.specularMap = source.specularMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		return this;

	};

	/**
	 * @author takahirox / http://github.com/takahirox
	 *
	 * parameters = {
	 *  gradientMap: new THREE.Texture( <Image> )
	 * }
	 */

	function MeshToonMaterial( parameters ) {

		MeshPhongMaterial.call( this );

		this.defines = { 'TOON': '' };

		this.type = 'MeshToonMaterial';

		this.gradientMap = null;

		this.setValues( parameters );

	}

	MeshToonMaterial.prototype = Object.create( MeshPhongMaterial.prototype );
	MeshToonMaterial.prototype.constructor = MeshToonMaterial;

	MeshToonMaterial.prototype.isMeshToonMaterial = true;

	MeshToonMaterial.prototype.copy = function ( source ) {

		MeshPhongMaterial.prototype.copy.call( this, source );

		this.gradientMap = source.gradientMap;

		return this;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * parameters = {
	 *  opacity: <float>,
	 *
	 *  bumpMap: new THREE.Texture( <Image> ),
	 *  bumpScale: <float>,
	 *
	 *  normalMap: new THREE.Texture( <Image> ),
	 *  normalMapType: THREE.TangentSpaceNormalMap,
	 *  normalScale: <Vector2>,
	 *
	 *  displacementMap: new THREE.Texture( <Image> ),
	 *  displacementScale: <float>,
	 *  displacementBias: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function MeshNormalMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshNormalMaterial';

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.wireframe = false;
		this.wireframeLinewidth = 1;

		this.fog = false;
		this.lights = false;

		this.skinning = false;
		this.morphTargets = false;
		this.morphNormals = false;

		this.setValues( parameters );

	}

	MeshNormalMaterial.prototype = Object.create( Material.prototype );
	MeshNormalMaterial.prototype.constructor = MeshNormalMaterial;

	MeshNormalMaterial.prototype.isMeshNormalMaterial = true;

	MeshNormalMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		return this;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  lightMap: new THREE.Texture( <Image> ),
	 *  lightMapIntensity: <float>
	 *
	 *  aoMap: new THREE.Texture( <Image> ),
	 *  aoMapIntensity: <float>
	 *
	 *  emissive: <hex>,
	 *  emissiveIntensity: <float>
	 *  emissiveMap: new THREE.Texture( <Image> ),
	 *
	 *  specularMap: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
	 *  combine: THREE.Multiply,
	 *  reflectivity: <float>,
	 *  refractionRatio: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function MeshLambertMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshLambertMaterial';

		this.color = new Color( 0xffffff ); // diffuse

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.specularMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.skinning = false;
		this.morphTargets = false;
		this.morphNormals = false;

		this.setValues( parameters );

	}

	MeshLambertMaterial.prototype = Object.create( Material.prototype );
	MeshLambertMaterial.prototype.constructor = MeshLambertMaterial;

	MeshLambertMaterial.prototype.isMeshLambertMaterial = true;

	MeshLambertMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.specularMap = source.specularMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		return this;

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *
	 *  linewidth: <float>,
	 *
	 *  scale: <float>,
	 *  dashSize: <float>,
	 *  gapSize: <float>
	 * }
	 */

	function LineDashedMaterial( parameters ) {

		LineBasicMaterial.call( this );

		this.type = 'LineDashedMaterial';

		this.scale = 1;
		this.dashSize = 3;
		this.gapSize = 1;

		this.setValues( parameters );

	}

	LineDashedMaterial.prototype = Object.create( LineBasicMaterial.prototype );
	LineDashedMaterial.prototype.constructor = LineDashedMaterial;

	LineDashedMaterial.prototype.isLineDashedMaterial = true;

	LineDashedMaterial.prototype.copy = function ( source ) {

		LineBasicMaterial.prototype.copy.call( this, source );

		this.scale = source.scale;
		this.dashSize = source.dashSize;
		this.gapSize = source.gapSize;

		return this;

	};



	var Materials = /*#__PURE__*/Object.freeze({
		ShadowMaterial: ShadowMaterial,
		SpriteMaterial: SpriteMaterial,
		RawShaderMaterial: RawShaderMaterial,
		ShaderMaterial: ShaderMaterial,
		PointsMaterial: PointsMaterial,
		MeshPhysicalMaterial: MeshPhysicalMaterial,
		MeshStandardMaterial: MeshStandardMaterial,
		MeshPhongMaterial: MeshPhongMaterial,
		MeshToonMaterial: MeshToonMaterial,
		MeshNormalMaterial: MeshNormalMaterial,
		MeshLambertMaterial: MeshLambertMaterial,
		MeshDepthMaterial: MeshDepthMaterial,
		MeshDistanceMaterial: MeshDistanceMaterial,
		MeshBasicMaterial: MeshBasicMaterial,
		LineDashedMaterial: LineDashedMaterial,
		LineBasicMaterial: LineBasicMaterial,
		Material: Material
	});

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	var Cache = {

		enabled: false,

		files: {},

		add: function ( key, file ) {

			if ( this.enabled === false ) return;

			// console.log( 'THREE.Cache', 'Adding key:', key );

			this.files[ key ] = file;

		},

		get: function ( key ) {

			if ( this.enabled === false ) return;

			// console.log( 'THREE.Cache', 'Checking key:', key );

			return this.files[ key ];

		},

		remove: function ( key ) {

			delete this.files[ key ];

		},

		clear: function () {

			this.files = {};

		}

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function LoadingManager( onLoad, onProgress, onError ) {

		var scope = this;

		var isLoading = false;
		var itemsLoaded = 0;
		var itemsTotal = 0;
		var urlModifier = undefined;

		this.onStart = undefined;
		this.onLoad = onLoad;
		this.onProgress = onProgress;
		this.onError = onError;

		this.itemStart = function ( url ) {

			itemsTotal ++;

			if ( isLoading === false ) {

				if ( scope.onStart !== undefined ) {

					scope.onStart( url, itemsLoaded, itemsTotal );

				}

			}

			isLoading = true;

		};

		this.itemEnd = function ( url ) {

			itemsLoaded ++;

			if ( scope.onProgress !== undefined ) {

				scope.onProgress( url, itemsLoaded, itemsTotal );

			}

			if ( itemsLoaded === itemsTotal ) {

				isLoading = false;

				if ( scope.onLoad !== undefined ) {

					scope.onLoad();

				}

			}

		};

		this.itemError = function ( url ) {

			if ( scope.onError !== undefined ) {

				scope.onError( url );

			}

		};

		this.resolveURL = function ( url ) {

			if ( urlModifier ) {

				return urlModifier( url );

			}

			return url;

		};

		this.setURLModifier = function ( transform ) {

			urlModifier = transform;
			return this;

		};

	}

	var DefaultLoadingManager = new LoadingManager();

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	var loading = {};

	function FileLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( FileLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			if ( url === undefined ) url = '';

			if ( this.path !== undefined ) url = this.path + url;

			url = this.manager.resolveURL( url );

			var scope = this;

			var cached = Cache.get( url );

			if ( cached !== undefined ) {

				scope.manager.itemStart( url );

				setTimeout( function () {

					if ( onLoad ) onLoad( cached );

					scope.manager.itemEnd( url );

				}, 0 );

				return cached;

			}

			// Check if request is duplicate

			if ( loading[ url ] !== undefined ) {

				loading[ url ].push( {

					onLoad: onLoad,
					onProgress: onProgress,
					onError: onError

				} );

				return;

			}

			// Check for data: URI
			var dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;
			var dataUriRegexResult = url.match( dataUriRegex );

			// Safari can not handle Data URIs through XMLHttpRequest so process manually
			if ( dataUriRegexResult ) {

				var mimeType = dataUriRegexResult[ 1 ];
				var isBase64 = !! dataUriRegexResult[ 2 ];
				var data = dataUriRegexResult[ 3 ];

				data = window.decodeURIComponent( data );

				if ( isBase64 ) data = window.atob( data );

				try {

					var response;
					var responseType = ( this.responseType || '' ).toLowerCase();

					switch ( responseType ) {

						case 'arraybuffer':
						case 'blob':

							var view = new Uint8Array( data.length );

							for ( var i = 0; i < data.length; i ++ ) {

								view[ i ] = data.charCodeAt( i );

							}

							if ( responseType === 'blob' ) {

								response = new Blob( [ view.buffer ], { type: mimeType } );

							} else {

								response = view.buffer;

							}

							break;

						case 'document':

							var parser = new DOMParser();
							response = parser.parseFromString( data, mimeType );

							break;

						case 'json':

							response = JSON.parse( data );

							break;

						default: // 'text' or other

							response = data;

							break;

					}

					// Wait for next browser tick like standard XMLHttpRequest event dispatching does
					window.setTimeout( function () {

						if ( onLoad ) onLoad( response );

						scope.manager.itemEnd( url );

					}, 0 );

				} catch ( error ) {

					// Wait for next browser tick like standard XMLHttpRequest event dispatching does
					window.setTimeout( function () {

						if ( onError ) onError( error );

						scope.manager.itemEnd( url );
						scope.manager.itemError( url );

					}, 0 );

				}

			} else {

				// Initialise array for duplicate requests

				loading[ url ] = [];

				loading[ url ].push( {

					onLoad: onLoad,
					onProgress: onProgress,
					onError: onError

				} );

				var request = new XMLHttpRequest();

				request.open( 'GET', url, true );

				request.addEventListener( 'load', function ( event ) {

					var response = this.response;

					Cache.add( url, response );

					var callbacks = loading[ url ];

					delete loading[ url ];

					if ( this.status === 200 || this.status === 0 ) {

						// Some browsers return HTTP Status 0 when using non-http protocol
						// e.g. 'file://' or 'data://'. Handle as success.

						if ( this.status === 0 ) console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );

						for ( var i = 0, il = callbacks.length; i < il; i ++ ) {

							var callback = callbacks[ i ];

							if ( callback.onLoad ) callback.onLoad( response );

						}

						scope.manager.itemEnd( url );

					} else {

						for ( var i = 0, il = callbacks.length; i < il; i ++ ) {

							var callback = callbacks[ i ];
							if ( callback.onError ) callback.onError( event );

						}

						scope.manager.itemEnd( url );
						scope.manager.itemError( url );

					}

				}, false );

				request.addEventListener( 'progress', function ( event ) {

					var callbacks = loading[ url ];

					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {

						var callback = callbacks[ i ];
						if ( callback.onProgress ) callback.onProgress( event );

					}

				}, false );

				request.addEventListener( 'error', function ( event ) {

					var callbacks = loading[ url ];

					delete loading[ url ];

					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {

						var callback = callbacks[ i ];
						if ( callback.onError ) callback.onError( event );

					}

					scope.manager.itemEnd( url );
					scope.manager.itemError( url );

				}, false );

				request.addEventListener( 'abort', function ( event ) {

					var callbacks = loading[ url ];

					delete loading[ url ];

					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {

						var callback = callbacks[ i ];
						if ( callback.onError ) callback.onError( event );

					}

					scope.manager.itemEnd( url );
					scope.manager.itemError( url );

				}, false );

				if ( this.responseType !== undefined ) request.responseType = this.responseType;
				if ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;

				if ( request.overrideMimeType ) request.overrideMimeType( this.mimeType !== undefined ? this.mimeType : 'text/plain' );

				for ( var header in this.requestHeader ) {

					request.setRequestHeader( header, this.requestHeader[ header ] );

				}

				request.send( null );

			}

			scope.manager.itemStart( url );

			return request;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		},

		setResponseType: function ( value ) {

			this.responseType = value;
			return this;

		},

		setWithCredentials: function ( value ) {

			this.withCredentials = value;
			return this;

		},

		setMimeType: function ( value ) {

			this.mimeType = value;
			return this;

		},

		setRequestHeader: function ( value ) {

			this.requestHeader = value;
			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 *
	 * Abstract Base class to block based textures loader (dds, pvr, ...)
	 */

	function CompressedTextureLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

		// override in sub classes
		this._parser = null;

	}

	Object.assign( CompressedTextureLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var images = [];

			var texture = new CompressedTexture();
			texture.image = images;

			var loader = new FileLoader( this.manager );
			loader.setPath( this.path );
			loader.setResponseType( 'arraybuffer' );

			function loadTexture( i ) {

				loader.load( url[ i ], function ( buffer ) {

					var texDatas = scope._parser( buffer, true );

					images[ i ] = {
						width: texDatas.width,
						height: texDatas.height,
						format: texDatas.format,
						mipmaps: texDatas.mipmaps
					};

					loaded += 1;

					if ( loaded === 6 ) {

						if ( texDatas.mipmapCount === 1 )
							texture.minFilter = LinearFilter;

						texture.format = texDatas.format;
						texture.needsUpdate = true;

						if ( onLoad ) onLoad( texture );

					}

				}, onProgress, onError );

			}

			if ( Array.isArray( url ) ) {

				var loaded = 0;

				for ( var i = 0, il = url.length; i < il; ++ i ) {

					loadTexture( i );

				}

			} else {

				// compressed cubemap texture stored in a single DDS file

				loader.load( url, function ( buffer ) {

					var texDatas = scope._parser( buffer, true );

					if ( texDatas.isCubemap ) {

						var faces = texDatas.mipmaps.length / texDatas.mipmapCount;

						for ( var f = 0; f < faces; f ++ ) {

							images[ f ] = { mipmaps: [] };

							for ( var i = 0; i < texDatas.mipmapCount; i ++ ) {

								images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );
								images[ f ].format = texDatas.format;
								images[ f ].width = texDatas.width;
								images[ f ].height = texDatas.height;

							}

						}

					} else {

						texture.image.width = texDatas.width;
						texture.image.height = texDatas.height;
						texture.mipmaps = texDatas.mipmaps;

					}

					if ( texDatas.mipmapCount === 1 ) {

						texture.minFilter = LinearFilter;

					}

					texture.format = texDatas.format;
					texture.needsUpdate = true;

					if ( onLoad ) onLoad( texture );

				}, onProgress, onError );

			}

			return texture;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	} );

	/**
	 * @author Nikos M. / https://github.com/foo123/
	 *
	 * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
	 */

	function DataTextureLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

		// override in sub classes
		this._parser = null;

	}

	Object.assign( DataTextureLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var texture = new DataTexture();

			var loader = new FileLoader( this.manager );
			loader.setResponseType( 'arraybuffer' );

			loader.load( url, function ( buffer ) {

				var texData = scope._parser( buffer );

				if ( ! texData ) return;

				if ( undefined !== texData.image ) {

					texture.image = texData.image;

				} else if ( undefined !== texData.data ) {

					texture.image.width = texData.width;
					texture.image.height = texData.height;
					texture.image.data = texData.data;

				}

				texture.wrapS = undefined !== texData.wrapS ? texData.wrapS : ClampToEdgeWrapping;
				texture.wrapT = undefined !== texData.wrapT ? texData.wrapT : ClampToEdgeWrapping;

				texture.magFilter = undefined !== texData.magFilter ? texData.magFilter : LinearFilter;
				texture.minFilter = undefined !== texData.minFilter ? texData.minFilter : LinearMipMapLinearFilter;

				texture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1;

				if ( undefined !== texData.format ) {

					texture.format = texData.format;

				}
				if ( undefined !== texData.type ) {

					texture.type = texData.type;

				}

				if ( undefined !== texData.mipmaps ) {

					texture.mipmaps = texData.mipmaps;

				}

				if ( 1 === texData.mipmapCount ) {

					texture.minFilter = LinearFilter;

				}

				texture.needsUpdate = true;

				if ( onLoad ) onLoad( texture, texData );

			}, onProgress, onError );


			return texture;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */


	function ImageLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( ImageLoader.prototype, {

		crossOrigin: 'anonymous',

		load: function ( url, onLoad, onProgress, onError ) {

			if ( url === undefined ) url = '';

			if ( this.path !== undefined ) url = this.path + url;

			url = this.manager.resolveURL( url );

			var scope = this;

			var cached = Cache.get( url );

			if ( cached !== undefined ) {

				scope.manager.itemStart( url );

				setTimeout( function () {

					if ( onLoad ) onLoad( cached );

					scope.manager.itemEnd( url );

				}, 0 );

				return cached;

			}

			var image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' );

			function onImageLoad() {

				image.removeEventListener( 'load', onImageLoad, false );
				image.removeEventListener( 'error', onImageError, false );

				Cache.add( url, this );

				if ( onLoad ) onLoad( this );

				scope.manager.itemEnd( url );

			}

			function onImageError( event ) {

				image.removeEventListener( 'load', onImageLoad, false );
				image.removeEventListener( 'error', onImageError, false );

				if ( onError ) onError( event );

				scope.manager.itemEnd( url );
				scope.manager.itemError( url );

			}

			image.addEventListener( 'load', onImageLoad, false );
			image.addEventListener( 'error', onImageError, false );

			if ( url.substr( 0, 5 ) !== 'data:' ) {

				if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;

			}

			scope.manager.itemStart( url );

			image.src = url;

			return image;

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */


	function CubeTextureLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( CubeTextureLoader.prototype, {

		crossOrigin: 'anonymous',

		load: function ( urls, onLoad, onProgress, onError ) {

			var texture = new CubeTexture();

			var loader = new ImageLoader( this.manager );
			loader.setCrossOrigin( this.crossOrigin );
			loader.setPath( this.path );

			var loaded = 0;

			function loadTexture( i ) {

				loader.load( urls[ i ], function ( image ) {

					texture.images[ i ] = image;

					loaded ++;

					if ( loaded === 6 ) {

						texture.needsUpdate = true;

						if ( onLoad ) onLoad( texture );

					}

				}, undefined, onError );

			}

			for ( var i = 0; i < urls.length; ++ i ) {

				loadTexture( i );

			}

			return texture;

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */


	function TextureLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( TextureLoader.prototype, {

		crossOrigin: 'anonymous',

		load: function ( url, onLoad, onProgress, onError ) {

			var texture = new Texture();

			var loader = new ImageLoader( this.manager );
			loader.setCrossOrigin( this.crossOrigin );
			loader.setPath( this.path );

			loader.load( url, function ( image ) {

				texture.image = image;

				// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.
				var isJPEG = url.search( /\.jpe?g$/i ) > 0 || url.search( /^data\:image\/jpeg/ ) === 0;

				texture.format = isJPEG ? RGBFormat : RGBAFormat;
				texture.needsUpdate = true;

				if ( onLoad !== undefined ) {

					onLoad( texture );

				}

			}, onProgress, onError );

			return texture;

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	} );

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * Extensible curve object
	 *
	 * Some common of curve methods:
	 * .getPoint( t, optionalTarget ), .getTangent( t )
	 * .getPointAt( u, optionalTarget ), .getTangentAt( u )
	 * .getPoints(), .getSpacedPoints()
	 * .getLength()
	 * .updateArcLengths()
	 *
	 * This following curves inherit from THREE.Curve:
	 *
	 * -- 2D curves --
	 * THREE.ArcCurve
	 * THREE.CubicBezierCurve
	 * THREE.EllipseCurve
	 * THREE.LineCurve
	 * THREE.QuadraticBezierCurve
	 * THREE.SplineCurve
	 *
	 * -- 3D curves --
	 * THREE.CatmullRomCurve3
	 * THREE.CubicBezierCurve3
	 * THREE.LineCurve3
	 * THREE.QuadraticBezierCurve3
	 *
	 * A series of curves can be represented as a THREE.CurvePath.
	 *
	 **/

	/**************************************************************
	 *	Abstract Curve base class
	 **************************************************************/

	function Curve() {

		this.type = 'Curve';

		this.arcLengthDivisions = 200;

	}

	Object.assign( Curve.prototype, {

		// Virtual base class method to overwrite and implement in subclasses
		//	- t [0 .. 1]

		getPoint: function ( /* t, optionalTarget */ ) {

			console.warn( 'THREE.Curve: .getPoint() not implemented.' );
			return null;

		},

		// Get point at relative position in curve according to arc length
		// - u [0 .. 1]

		getPointAt: function ( u, optionalTarget ) {

			var t = this.getUtoTmapping( u );
			return this.getPoint( t, optionalTarget );

		},

		// Get sequence of points using getPoint( t )

		getPoints: function ( divisions ) {

			if ( divisions === undefined ) divisions = 5;

			var points = [];

			for ( var d = 0; d <= divisions; d ++ ) {

				points.push( this.getPoint( d / divisions ) );

			}

			return points;

		},

		// Get sequence of points using getPointAt( u )

		getSpacedPoints: function ( divisions ) {

			if ( divisions === undefined ) divisions = 5;

			var points = [];

			for ( var d = 0; d <= divisions; d ++ ) {

				points.push( this.getPointAt( d / divisions ) );

			}

			return points;

		},

		// Get total curve arc length

		getLength: function () {

			var lengths = this.getLengths();
			return lengths[ lengths.length - 1 ];

		},

		// Get list of cumulative segment lengths

		getLengths: function ( divisions ) {

			if ( divisions === undefined ) divisions = this.arcLengthDivisions;

			if ( this.cacheArcLengths &&
				( this.cacheArcLengths.length === divisions + 1 ) &&
				! this.needsUpdate ) {

				return this.cacheArcLengths;

			}

			this.needsUpdate = false;

			var cache = [];
			var current, last = this.getPoint( 0 );
			var p, sum = 0;

			cache.push( 0 );

			for ( p = 1; p <= divisions; p ++ ) {

				current = this.getPoint( p / divisions );
				sum += current.distanceTo( last );
				cache.push( sum );
				last = current;

			}

			this.cacheArcLengths = cache;

			return cache; // { sums: cache, sum: sum }; Sum is in the last element.

		},

		updateArcLengths: function () {

			this.needsUpdate = true;
			this.getLengths();

		},

		// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant

		getUtoTmapping: function ( u, distance ) {

			var arcLengths = this.getLengths();

			var i = 0, il = arcLengths.length;

			var targetArcLength; // The targeted u distance value to get

			if ( distance ) {

				targetArcLength = distance;

			} else {

				targetArcLength = u * arcLengths[ il - 1 ];

			}

			// binary search for the index with largest value smaller than target u distance

			var low = 0, high = il - 1, comparison;

			while ( low <= high ) {

				i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats

				comparison = arcLengths[ i ] - targetArcLength;

				if ( comparison < 0 ) {

					low = i + 1;

				} else if ( comparison > 0 ) {

					high = i - 1;

				} else {

					high = i;
					break;

					// DONE

				}

			}

			i = high;

			if ( arcLengths[ i ] === targetArcLength ) {

				return i / ( il - 1 );

			}

			// we could get finer grain at lengths, or use simple interpolation between two points

			var lengthBefore = arcLengths[ i ];
			var lengthAfter = arcLengths[ i + 1 ];

			var segmentLength = lengthAfter - lengthBefore;

			// determine where we are between the 'before' and 'after' points

			var segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;

			// add that fractional amount to t

			var t = ( i + segmentFraction ) / ( il - 1 );

			return t;

		},

		// Returns a unit vector tangent at t
		// In case any sub curve does not implement its tangent derivation,
		// 2 points a small delta apart will be used to find its gradient
		// which seems to give a reasonable approximation

		getTangent: function ( t ) {

			var delta = 0.0001;
			var t1 = t - delta;
			var t2 = t + delta;

			// Capping in case of danger

			if ( t1 < 0 ) t1 = 0;
			if ( t2 > 1 ) t2 = 1;

			var pt1 = this.getPoint( t1 );
			var pt2 = this.getPoint( t2 );

			var vec = pt2.clone().sub( pt1 );
			return vec.normalize();

		},

		getTangentAt: function ( u ) {

			var t = this.getUtoTmapping( u );
			return this.getTangent( t );

		},

		computeFrenetFrames: function ( segments, closed ) {

			// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf

			var normal = new Vector3();

			var tangents = [];
			var normals = [];
			var binormals = [];

			var vec = new Vector3();
			var mat = new Matrix4();

			var i, u, theta;

			// compute the tangent vectors for each segment on the curve

			for ( i = 0; i <= segments; i ++ ) {

				u = i / segments;

				tangents[ i ] = this.getTangentAt( u );
				tangents[ i ].normalize();

			}

			// select an initial normal vector perpendicular to the first tangent vector,
			// and in the direction of the minimum tangent xyz component

			normals[ 0 ] = new Vector3();
			binormals[ 0 ] = new Vector3();
			var min = Number.MAX_VALUE;
			var tx = Math.abs( tangents[ 0 ].x );
			var ty = Math.abs( tangents[ 0 ].y );
			var tz = Math.abs( tangents[ 0 ].z );

			if ( tx <= min ) {

				min = tx;
				normal.set( 1, 0, 0 );

			}

			if ( ty <= min ) {

				min = ty;
				normal.set( 0, 1, 0 );

			}

			if ( tz <= min ) {

				normal.set( 0, 0, 1 );

			}

			vec.crossVectors( tangents[ 0 ], normal ).normalize();

			normals[ 0 ].crossVectors( tangents[ 0 ], vec );
			binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );


			// compute the slowly-varying normal and binormal vectors for each segment on the curve

			for ( i = 1; i <= segments; i ++ ) {

				normals[ i ] = normals[ i - 1 ].clone();

				binormals[ i ] = binormals[ i - 1 ].clone();

				vec.crossVectors( tangents[ i - 1 ], tangents[ i ] );

				if ( vec.length() > Number.EPSILON ) {

					vec.normalize();

					theta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors

					normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );

				}

				binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

			}

			// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same

			if ( closed === true ) {

				theta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );
				theta /= segments;

				if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {

					theta = - theta;

				}

				for ( i = 1; i <= segments; i ++ ) {

					// twist a little...
					normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );
					binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

				}

			}

			return {
				tangents: tangents,
				normals: normals,
				binormals: binormals
			};

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( source ) {

			this.arcLengthDivisions = source.arcLengthDivisions;

			return this;

		},

		toJSON: function () {

			var data = {
				metadata: {
					version: 4.5,
					type: 'Curve',
					generator: 'Curve.toJSON'
				}
			};

			data.arcLengthDivisions = this.arcLengthDivisions;
			data.type = this.type;

			return data;

		},

		fromJSON: function ( json ) {

			this.arcLengthDivisions = json.arcLengthDivisions;

			return this;

		}

	} );

	function EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

		Curve.call( this );

		this.type = 'EllipseCurve';

		this.aX = aX || 0;
		this.aY = aY || 0;

		this.xRadius = xRadius || 1;
		this.yRadius = yRadius || 1;

		this.aStartAngle = aStartAngle || 0;
		this.aEndAngle = aEndAngle || 2 * Math.PI;

		this.aClockwise = aClockwise || false;

		this.aRotation = aRotation || 0;

	}

	EllipseCurve.prototype = Object.create( Curve.prototype );
	EllipseCurve.prototype.constructor = EllipseCurve;

	EllipseCurve.prototype.isEllipseCurve = true;

	EllipseCurve.prototype.getPoint = function ( t, optionalTarget ) {

		var point = optionalTarget || new Vector2();

		var twoPi = Math.PI * 2;
		var deltaAngle = this.aEndAngle - this.aStartAngle;
		var samePoints = Math.abs( deltaAngle ) < Number.EPSILON;

		// ensures that deltaAngle is 0 .. 2 PI
		while ( deltaAngle < 0 ) deltaAngle += twoPi;
		while ( deltaAngle > twoPi ) deltaAngle -= twoPi;

		if ( deltaAngle < Number.EPSILON ) {

			if ( samePoints ) {

				deltaAngle = 0;

			} else {

				deltaAngle = twoPi;

			}

		}

		if ( this.aClockwise === true && ! samePoints ) {

			if ( deltaAngle === twoPi ) {

				deltaAngle = - twoPi;

			} else {

				deltaAngle = deltaAngle - twoPi;

			}

		}

		var angle = this.aStartAngle + t * deltaAngle;
		var x = this.aX + this.xRadius * Math.cos( angle );
		var y = this.aY + this.yRadius * Math.sin( angle );

		if ( this.aRotation !== 0 ) {

			var cos = Math.cos( this.aRotation );
			var sin = Math.sin( this.aRotation );

			var tx = x - this.aX;
			var ty = y - this.aY;

			// Rotate the point about the center of the ellipse.
			x = tx * cos - ty * sin + this.aX;
			y = tx * sin + ty * cos + this.aY;

		}

		return point.set( x, y );

	};

	EllipseCurve.prototype.copy = function ( source ) {

		Curve.prototype.copy.call( this, source );

		this.aX = source.aX;
		this.aY = source.aY;

		this.xRadius = source.xRadius;
		this.yRadius = source.yRadius;

		this.aStartAngle = source.aStartAngle;
		this.aEndAngle = source.aEndAngle;

		this.aClockwise = source.aClockwise;

		this.aRotation = source.aRotation;

		return this;

	};


	EllipseCurve.prototype.toJSON = function () {

		var data = Curve.prototype.toJSON.call( this );

		data.aX = this.aX;
		data.aY = this.aY;

		data.xRadius = this.xRadius;
		data.yRadius = this.yRadius;

		data.aStartAngle = this.aStartAngle;
		data.aEndAngle = this.aEndAngle;

		data.aClockwise = this.aClockwise;

		data.aRotation = this.aRotation;

		return data;

	};

	EllipseCurve.prototype.fromJSON = function ( json ) {

		Curve.prototype.fromJSON.call( this, json );

		this.aX = json.aX;
		this.aY = json.aY;

		this.xRadius = json.xRadius;
		this.yRadius = json.yRadius;

		this.aStartAngle = json.aStartAngle;
		this.aEndAngle = json.aEndAngle;

		this.aClockwise = json.aClockwise;

		this.aRotation = json.aRotation;

		return this;

	};

	function ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

		EllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

		this.type = 'ArcCurve';

	}

	ArcCurve.prototype = Object.create( EllipseCurve.prototype );
	ArcCurve.prototype.constructor = ArcCurve;

	ArcCurve.prototype.isArcCurve = true;

	/**
	 * @author zz85 https://github.com/zz85
	 *
	 * Centripetal CatmullRom Curve - which is useful for avoiding
	 * cusps and self-intersections in non-uniform catmull rom curves.
	 * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
	 *
	 * curve.type accepts centripetal(default), chordal and catmullrom
	 * curve.tension is used for catmullrom which defaults to 0.5
	 */


	/*
	Based on an optimized c++ solution in
	 - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
	 - http://ideone.com/NoEbVM

	This CubicPoly class could be used for reusing some variables and calculations,
	but for three.js curve use, it could be possible inlined and flatten into a single function call
	which can be placed in CurveUtils.
	*/

	function CubicPoly() {

		var c0 = 0, c1 = 0, c2 = 0, c3 = 0;

		/*
		 * Compute coefficients for a cubic polynomial
		 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
		 * such that
		 *   p(0) = x0, p(1) = x1
		 *  and
		 *   p'(0) = t0, p'(1) = t1.
		 */
		function init( x0, x1, t0, t1 ) {

			c0 = x0;
			c1 = t0;
			c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;
			c3 = 2 * x0 - 2 * x1 + t0 + t1;

		}

		return {

			initCatmullRom: function ( x0, x1, x2, x3, tension ) {

				init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );

			},

			initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {

				// compute tangents when parameterized in [t1,t2]
				var t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;
				var t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;

				// rescale tangents for parametrization in [0,1]
				t1 *= dt1;
				t2 *= dt1;

				init( x1, x2, t1, t2 );

			},

			calc: function ( t ) {

				var t2 = t * t;
				var t3 = t2 * t;
				return c0 + c1 * t + c2 * t2 + c3 * t3;

			}

		};

	}

	//

	var tmp = new Vector3();
	var px = new CubicPoly(), py = new CubicPoly(), pz = new CubicPoly();

	function CatmullRomCurve3( points, closed, curveType, tension ) {

		Curve.call( this );

		this.type = 'CatmullRomCurve3';

		this.points = points || [];
		this.closed = closed || false;
		this.curveType = curveType || 'centripetal';
		this.tension = tension || 0.5;

	}

	CatmullRomCurve3.prototype = Object.create( Curve.prototype );
	CatmullRomCurve3.prototype.constructor = CatmullRomCurve3;

	CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;

	CatmullRomCurve3.prototype.getPoint = function ( t, optionalTarget ) {

		var point = optionalTarget || new Vector3();

		var points = this.points;
		var l = points.length;

		var p = ( l - ( this.closed ? 0 : 1 ) ) * t;
		var intPoint = Math.floor( p );
		var weight = p - intPoint;

		if ( this.closed ) {

			intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / l ) + 1 ) * l;

		} else if ( weight === 0 && intPoint === l - 1 ) {

			intPoint = l - 2;
			weight = 1;

		}

		var p0, p1, p2, p3; // 4 points

		if ( this.closed || intPoint > 0 ) {

			p0 = points[ ( intPoint - 1 ) % l ];

		} else {

			// extrapolate first point
			tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );
			p0 = tmp;

		}

		p1 = points[ intPoint % l ];
		p2 = points[ ( intPoint + 1 ) % l ];

		if ( this.closed || intPoint + 2 < l ) {

			p3 = points[ ( intPoint + 2 ) % l ];

		} else {

			// extrapolate last point
			tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );
			p3 = tmp;

		}

		if ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) {

			// init Centripetal / Chordal Catmull-Rom
			var pow = this.curveType === 'chordal' ? 0.5 : 0.25;
			var dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );
			var dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );
			var dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );

			// safety check for repeated points
			if ( dt1 < 1e-4 ) dt1 = 1.0;
			if ( dt0 < 1e-4 ) dt0 = dt1;
			if ( dt2 < 1e-4 ) dt2 = dt1;

			px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );
			py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );
			pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );

		} else if ( this.curveType === 'catmullrom' ) {

			px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension );
			py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension );
			pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension );

		}

		point.set(
			px.calc( weight ),
			py.calc( weight ),
			pz.calc( weight )
		);

		return point;

	};

	CatmullRomCurve3.prototype.copy = function ( source ) {

		Curve.prototype.copy.call( this, source );

		this.points = [];

		for ( var i = 0, l = source.points.length; i < l; i ++ ) {

			var point = source.points[ i ];

			this.points.push( point.clone() );

		}

		this.closed = source.closed;
		this.curveType = source.curveType;
		this.tension = source.tension;

		return this;

	};

	CatmullRomCurve3.prototype.toJSON = function () {

		var data = Curve.prototype.toJSON.call( this );

		data.points = [];

		for ( var i = 0, l = this.points.length; i < l; i ++ ) {

			var point = this.points[ i ];
			data.points.push( point.toArray() );

		}

		data.closed = this.closed;
		data.curveType = this.curveType;
		data.tension = this.tension;

		return data;

	};

	CatmullRomCurve3.prototype.fromJSON = function ( json ) {

		Curve.prototype.fromJSON.call( this, json );

		this.points = [];

		for ( var i = 0, l = json.points.length; i < l; i ++ ) {

			var point = json.points[ i ];
			this.points.push( new Vector3().fromArray( point ) );

		}

		this.closed = json.closed;
		this.curveType = json.curveType;
		this.tension = json.tension;

		return this;

	};

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 *
	 * Bezier Curves formulas obtained from
	 * http://en.wikipedia.org/wiki/Bézier_curve
	 */

	function CatmullRom( t, p0, p1, p2, p3 ) {

		var v0 = ( p2 - p0 ) * 0.5;
		var v1 = ( p3 - p1 ) * 0.5;
		var t2 = t * t;
		var t3 = t * t2;
		return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;

	}

	//

	function QuadraticBezierP0( t, p ) {

		var k = 1 - t;
		return k * k * p;

	}

	function QuadraticBezierP1( t, p ) {

		return 2 * ( 1 - t ) * t * p;

	}

	function QuadraticBezierP2( t, p ) {

		return t * t * p;

	}

	function QuadraticBezier( t, p0, p1, p2 ) {

		return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +
			QuadraticBezierP2( t, p2 );

	}

	//

	function CubicBezierP0( t, p ) {

		var k = 1 - t;
		return k * k * k * p;

	}

	function CubicBezierP1( t, p ) {

		var k = 1 - t;
		return 3 * k * k * t * p;

	}

	function CubicBezierP2( t, p ) {

		return 3 * ( 1 - t ) * t * t * p;

	}

	function CubicBezierP3( t, p ) {

		return t * t * t * p;

	}

	function CubicBezier( t, p0, p1, p2, p3 ) {

		return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +
			CubicBezierP3( t, p3 );

	}

	function CubicBezierCurve( v0, v1, v2, v3 ) {

		Curve.call( this );

		this.type = 'CubicBezierCurve';

		this.v0 = v0 || new Vector2();
		this.v1 = v1 || new Vector2();
		this.v2 = v2 || new Vector2();
		this.v3 = v3 || new Vector2();

	}

	CubicBezierCurve.prototype = Object.create( Curve.prototype );
	CubicBezierCurve.prototype.constructor = CubicBezierCurve;

	CubicBezierCurve.prototype.isCubicBezierCurve = true;

	CubicBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {

		var point = optionalTarget || new Vector2();

		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;

		point.set(
			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
			CubicBezier( t, v0.y, v1.y, v2.y, v3.y )
		);

		return point;

	};

	CubicBezierCurve.prototype.copy = function ( source ) {

		Curve.prototype.copy.call( this, source );

		this.v0.copy( source.v0 );
		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );
		this.v3.copy( source.v3 );

		return this;

	};

	CubicBezierCurve.prototype.toJSON = function () {

		var data = Curve.prototype.toJSON.call( this );

		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		data.v3 = this.v3.toArray();

		return data;

	};

	CubicBezierCurve.prototype.fromJSON = function ( json ) {

		Curve.prototype.fromJSON.call( this, json );

		this.v0.fromArray( json.v0 );
		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );
		this.v3.fromArray( json.v3 );

		return this;

	};

	function CubicBezierCurve3( v0, v1, v2, v3 ) {

		Curve.call( this );

		this.type = 'CubicBezierCurve3';

		this.v0 = v0 || new Vector3();
		this.v1 = v1 || new Vector3();
		this.v2 = v2 || new Vector3();
		this.v3 = v3 || new Vector3();

	}

	CubicBezierCurve3.prototype = Object.create( Curve.prototype );
	CubicBezierCurve3.prototype.constructor = CubicBezierCurve3;

	CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;

	CubicBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {

		var point = optionalTarget || new Vector3();

		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;

		point.set(
			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
			CubicBezier( t, v0.y, v1.y, v2.y, v3.y ),
			CubicBezier( t, v0.z, v1.z, v2.z, v3.z )
		);

		return point;

	};

	CubicBezierCurve3.prototype.copy = function ( source ) {

		Curve.prototype.copy.call( this, source );

		this.v0.copy( source.v0 );
		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );
		this.v3.copy( source.v3 );

		return this;

	};

	CubicBezierCurve3.prototype.toJSON = function () {

		var data = Curve.prototype.toJSON.call( this );

		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		data.v3 = this.v3.toArray();

		return data;

	};

	CubicBezierCurve3.prototype.fromJSON = function ( json ) {

		Curve.prototype.fromJSON.call( this, json );

		this.v0.fromArray( json.v0 );
		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );
		this.v3.fromArray( json.v3 );

		return this;

	};

	function LineCurve( v1, v2 ) {

		Curve.call( this );

		this.type = 'LineCurve';

		this.v1 = v1 || new Vector2();
		this.v2 = v2 || new Vector2();

	}

	LineCurve.prototype = Object.create( Curve.prototype );
	LineCurve.prototype.constructor = LineCurve;

	LineCurve.prototype.isLineCurve = true;

	LineCurve.prototype.getPoint = function ( t, optionalTarget ) {

		var point = optionalTarget || new Vector2();

		if ( t === 1 ) {

			point.copy( this.v2 );

		} else {

			point.copy( this.v2 ).sub( this.v1 );
			point.multiplyScalar( t ).add( this.v1 );

		}

		return point;

	};

	// Line curve is linear, so we can overwrite default getPointAt

	LineCurve.prototype.getPointAt = function ( u, optionalTarget ) {

		return this.getPoint( u, optionalTarget );

	};

	LineCurve.prototype.getTangent = function ( /* t */ ) {

		var tangent = this.v2.clone().sub( this.v1 );

		return tangent.normalize();

	};

	LineCurve.prototype.copy = function ( source ) {

		Curve.prototype.copy.call( this, source );

		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );

		return this;

	};

	LineCurve.prototype.toJSON = function () {

		var data = Curve.prototype.toJSON.call( this );

		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();

		return data;

	};

	LineCurve.prototype.fromJSON = function ( json ) {

		Curve.prototype.fromJSON.call( this, json );

		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );

		return this;

	};

	function LineCurve3( v1, v2 ) {

		Curve.call( this );

		this.type = 'LineCurve3';

		this.v1 = v1 || new Vector3();
		this.v2 = v2 || new Vector3();

	}

	LineCurve3.prototype = Object.create( Curve.prototype );
	LineCurve3.prototype.constructor = LineCurve3;

	LineCurve3.prototype.isLineCurve3 = true;

	LineCurve3.prototype.getPoint = function ( t, optionalTarget ) {

		var point = optionalTarget || new Vector3();

		if ( t === 1 ) {

			point.copy( this.v2 );

		} else {

			point.copy( this.v2 ).sub( this.v1 );
			point.multiplyScalar( t ).add( this.v1 );

		}

		return point;

	};

	// Line curve is linear, so we can overwrite default getPointAt

	LineCurve3.prototype.getPointAt = function ( u, optionalTarget ) {

		return this.getPoint( u, optionalTarget );

	};

	LineCurve3.prototype.copy = function ( source ) {

		Curve.prototype.copy.call( this, source );

		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );

		return this;

	};

	LineCurve3.prototype.toJSON = function () {

		var data = Curve.prototype.toJSON.call( this );

		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();

		return data;

	};

	LineCurve3.prototype.fromJSON = function ( json ) {

		Curve.prototype.fromJSON.call( this, json );

		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );

		return this;

	};

	function QuadraticBezierCurve( v0, v1, v2 ) {

		Curve.call( this );

		this.type = 'QuadraticBezierCurve';

		this.v0 = v0 || new Vector2();
		this.v1 = v1 || new Vector2();
		this.v2 = v2 || new Vector2();

	}

	QuadraticBezierCurve.prototype = Object.create( Curve.prototype );
	QuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve;

	QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;

	QuadraticBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {

		var point = optionalTarget || new Vector2();

		var v0 = this.v0, v1 = this.v1, v2 = this.v2;

		point.set(
			QuadraticBezier( t, v0.x, v1.x, v2.x ),
			QuadraticBezier( t, v0.y, v1.y, v2.y )
		);

		return point;

	};

	QuadraticBezierCurve.prototype.copy = function ( source ) {

		Curve.prototype.copy.call( this, source );

		this.v0.copy( source.v0 );
		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );

		return this;

	};

	QuadraticBezierCurve.prototype.toJSON = function () {

		var data = Curve.prototype.toJSON.call( this );

		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();

		return data;

	};

	QuadraticBezierCurve.prototype.fromJSON = function ( json ) {

		Curve.prototype.fromJSON.call( this, json );

		this.v0.fromArray( json.v0 );
		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );

		return this;

	};

	function QuadraticBezierCurve3( v0, v1, v2 ) {

		Curve.call( this );

		this.type = 'QuadraticBezierCurve3';

		this.v0 = v0 || new Vector3();
		this.v1 = v1 || new Vector3();
		this.v2 = v2 || new Vector3();

	}

	QuadraticBezierCurve3.prototype = Object.create( Curve.prototype );
	QuadraticBezierCurve3.prototype.constructor = QuadraticBezierCurve3;

	QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;

	QuadraticBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {

		var point = optionalTarget || new Vector3();

		var v0 = this.v0, v1 = this.v1, v2 = this.v2;

		point.set(
			QuadraticBezier( t, v0.x, v1.x, v2.x ),
			QuadraticBezier( t, v0.y, v1.y, v2.y ),
			QuadraticBezier( t, v0.z, v1.z, v2.z )
		);

		return point;

	};

	QuadraticBezierCurve3.prototype.copy = function ( source ) {

		Curve.prototype.copy.call( this, source );

		this.v0.copy( source.v0 );
		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );

		return this;

	};

	QuadraticBezierCurve3.prototype.toJSON = function () {

		var data = Curve.prototype.toJSON.call( this );

		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();

		return data;

	};

	QuadraticBezierCurve3.prototype.fromJSON = function ( json ) {

		Curve.prototype.fromJSON.call( this, json );

		this.v0.fromArray( json.v0 );
		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );

		return this;

	};

	function SplineCurve( points /* array of Vector2 */ ) {

		Curve.call( this );

		this.type = 'SplineCurve';

		this.points = points || [];

	}

	SplineCurve.prototype = Object.create( Curve.prototype );
	SplineCurve.prototype.constructor = SplineCurve;

	SplineCurve.prototype.isSplineCurve = true;

	SplineCurve.prototype.getPoint = function ( t, optionalTarget ) {

		var point = optionalTarget || new Vector2();

		var points = this.points;
		var p = ( points.length - 1 ) * t;

		var intPoint = Math.floor( p );
		var weight = p - intPoint;

		var p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];
		var p1 = points[ intPoint ];
		var p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
		var p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];

		point.set(
			CatmullRom( weight, p0.x, p1.x, p2.x, p3.x ),
			CatmullRom( weight, p0.y, p1.y, p2.y, p3.y )
		);

		return point;

	};

	SplineCurve.prototype.copy = function ( source ) {

		Curve.prototype.copy.call( this, source );

		this.points = [];

		for ( var i = 0, l = source.points.length; i < l; i ++ ) {

			var point = source.points[ i ];

			this.points.push( point.clone() );

		}

		return this;

	};

	SplineCurve.prototype.toJSON = function () {

		var data = Curve.prototype.toJSON.call( this );

		data.points = [];

		for ( var i = 0, l = this.points.length; i < l; i ++ ) {

			var point = this.points[ i ];
			data.points.push( point.toArray() );

		}

		return data;

	};

	SplineCurve.prototype.fromJSON = function ( json ) {

		Curve.prototype.fromJSON.call( this, json );

		this.points = [];

		for ( var i = 0, l = json.points.length; i < l; i ++ ) {

			var point = json.points[ i ];
			this.points.push( new Vector2().fromArray( point ) );

		}

		return this;

	};



	var Curves = /*#__PURE__*/Object.freeze({
		ArcCurve: ArcCurve,
		CatmullRomCurve3: CatmullRomCurve3,
		CubicBezierCurve: CubicBezierCurve,
		CubicBezierCurve3: CubicBezierCurve3,
		EllipseCurve: EllipseCurve,
		LineCurve: LineCurve,
		LineCurve3: LineCurve3,
		QuadraticBezierCurve: QuadraticBezierCurve,
		QuadraticBezierCurve3: QuadraticBezierCurve3,
		SplineCurve: SplineCurve
	});

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 *
	 **/

	/**************************************************************
	 *	Curved Path - a curve path is simply a array of connected
	 *  curves, but retains the api of a curve
	 **************************************************************/

	function CurvePath() {

		Curve.call( this );

		this.type = 'CurvePath';

		this.curves = [];
		this.autoClose = false; // Automatically closes the path

	}

	CurvePath.prototype = Object.assign( Object.create( Curve.prototype ), {

		constructor: CurvePath,

		add: function ( curve ) {

			this.curves.push( curve );

		},

		closePath: function () {

			// Add a line curve if start and end of lines are not connected
			var startPoint = this.curves[ 0 ].getPoint( 0 );
			var endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );

			if ( ! startPoint.equals( endPoint ) ) {

				this.curves.push( new LineCurve( endPoint, startPoint ) );

			}

		},

		// To get accurate point with reference to
		// entire path distance at time t,
		// following has to be done:

		// 1. Length of each sub path have to be known
		// 2. Locate and identify type of curve
		// 3. Get t for the curve
		// 4. Return curve.getPointAt(t')

		getPoint: function ( t ) {

			var d = t * this.getLength();
			var curveLengths = this.getCurveLengths();
			var i = 0;

			// To think about boundaries points.

			while ( i < curveLengths.length ) {

				if ( curveLengths[ i ] >= d ) {

					var diff = curveLengths[ i ] - d;
					var curve = this.curves[ i ];

					var segmentLength = curve.getLength();
					var u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;

					return curve.getPointAt( u );

				}

				i ++;

			}

			return null;

			// loop where sum != 0, sum > d , sum+1 <d

		},

		// We cannot use the default THREE.Curve getPoint() with getLength() because in
		// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
		// getPoint() depends on getLength

		getLength: function () {

			var lens = this.getCurveLengths();
			return lens[ lens.length - 1 ];

		},

		// cacheLengths must be recalculated.
		updateArcLengths: function () {

			this.needsUpdate = true;
			this.cacheLengths = null;
			this.getCurveLengths();

		},

		// Compute lengths and cache them
		// We cannot overwrite getLengths() because UtoT mapping uses it.

		getCurveLengths: function () {

			// We use cache values if curves and cache array are same length

			if ( this.cacheLengths && this.cacheLengths.length === this.curves.length ) {

				return this.cacheLengths;

			}

			// Get length of sub-curve
			// Push sums into cached array

			var lengths = [], sums = 0;

			for ( var i = 0, l = this.curves.length; i < l; i ++ ) {

				sums += this.curves[ i ].getLength();
				lengths.push( sums );

			}

			this.cacheLengths = lengths;

			return lengths;

		},

		getSpacedPoints: function ( divisions ) {

			if ( divisions === undefined ) divisions = 40;

			var points = [];

			for ( var i = 0; i <= divisions; i ++ ) {

				points.push( this.getPoint( i / divisions ) );

			}

			if ( this.autoClose ) {

				points.push( points[ 0 ] );

			}

			return points;

		},

		getPoints: function ( divisions ) {

			divisions = divisions || 12;

			var points = [], last;

			for ( var i = 0, curves = this.curves; i < curves.length; i ++ ) {

				var curve = curves[ i ];
				var resolution = ( curve && curve.isEllipseCurve ) ? divisions * 2
					: ( curve && ( curve.isLineCurve || curve.isLineCurve3 ) ) ? 1
						: ( curve && curve.isSplineCurve ) ? divisions * curve.points.length
							: divisions;

				var pts = curve.getPoints( resolution );

				for ( var j = 0; j < pts.length; j ++ ) {

					var point = pts[ j ];

					if ( last && last.equals( point ) ) continue; // ensures no consecutive points are duplicates

					points.push( point );
					last = point;

				}

			}

			if ( this.autoClose && points.length > 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) {

				points.push( points[ 0 ] );

			}

			return points;

		},

		copy: function ( source ) {

			Curve.prototype.copy.call( this, source );

			this.curves = [];

			for ( var i = 0, l = source.curves.length; i < l; i ++ ) {

				var curve = source.curves[ i ];

				this.curves.push( curve.clone() );

			}

			this.autoClose = source.autoClose;

			return this;

		},

		toJSON: function () {

			var data = Curve.prototype.toJSON.call( this );

			data.autoClose = this.autoClose;
			data.curves = [];

			for ( var i = 0, l = this.curves.length; i < l; i ++ ) {

				var curve = this.curves[ i ];
				data.curves.push( curve.toJSON() );

			}

			return data;

		},

		fromJSON: function ( json ) {

			Curve.prototype.fromJSON.call( this, json );

			this.autoClose = json.autoClose;
			this.curves = [];

			for ( var i = 0, l = json.curves.length; i < l; i ++ ) {

				var curve = json.curves[ i ];
				this.curves.push( new Curves[ curve.type ]().fromJSON( curve ) );

			}

			return this;

		}

	} );

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * Creates free form 2d path using series of points, lines or curves.
	 **/

	function Path( points ) {

		CurvePath.call( this );

		this.type = 'Path';

		this.currentPoint = new Vector2();

		if ( points ) {

			this.setFromPoints( points );

		}

	}

	Path.prototype = Object.assign( Object.create( CurvePath.prototype ), {

		constructor: Path,

		setFromPoints: function ( points ) {

			this.moveTo( points[ 0 ].x, points[ 0 ].y );

			for ( var i = 1, l = points.length; i < l; i ++ ) {

				this.lineTo( points[ i ].x, points[ i ].y );

			}

		},

		moveTo: function ( x, y ) {

			this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?

		},

		lineTo: function ( x, y ) {

			var curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );
			this.curves.push( curve );

			this.currentPoint.set( x, y );

		},

		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {

			var curve = new QuadraticBezierCurve(
				this.currentPoint.clone(),
				new Vector2( aCPx, aCPy ),
				new Vector2( aX, aY )
			);

			this.curves.push( curve );

			this.currentPoint.set( aX, aY );

		},

		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {

			var curve = new CubicBezierCurve(
				this.currentPoint.clone(),
				new Vector2( aCP1x, aCP1y ),
				new Vector2( aCP2x, aCP2y ),
				new Vector2( aX, aY )
			);

			this.curves.push( curve );

			this.currentPoint.set( aX, aY );

		},

		splineThru: function ( pts /*Array of Vector*/ ) {

			var npts = [ this.currentPoint.clone() ].concat( pts );

			var curve = new SplineCurve( npts );
			this.curves.push( curve );

			this.currentPoint.copy( pts[ pts.length - 1 ] );

		},

		arc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

			var x0 = this.currentPoint.x;
			var y0 = this.currentPoint.y;

			this.absarc( aX + x0, aY + y0, aRadius,
				aStartAngle, aEndAngle, aClockwise );

		},

		absarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

			this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

		},

		ellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

			var x0 = this.currentPoint.x;
			var y0 = this.currentPoint.y;

			this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );

		},

		absellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

			var curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );

			if ( this.curves.length > 0 ) {

				// if a previous curve is present, attempt to join
				var firstPoint = curve.getPoint( 0 );

				if ( ! firstPoint.equals( this.currentPoint ) ) {

					this.lineTo( firstPoint.x, firstPoint.y );

				}

			}

			this.curves.push( curve );

			var lastPoint = curve.getPoint( 1 );
			this.currentPoint.copy( lastPoint );

		},

		copy: function ( source ) {

			CurvePath.prototype.copy.call( this, source );

			this.currentPoint.copy( source.currentPoint );

			return this;

		},

		toJSON: function () {

			var data = CurvePath.prototype.toJSON.call( this );

			data.currentPoint = this.currentPoint.toArray();

			return data;

		},

		fromJSON: function ( json ) {

			CurvePath.prototype.fromJSON.call( this, json );

			this.currentPoint.fromArray( json.currentPoint );

			return this;

		}

	} );

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * Defines a 2d shape plane using paths.
	 **/

	// STEP 1 Create a path.
	// STEP 2 Turn path into shape.
	// STEP 3 ExtrudeGeometry takes in Shape/Shapes
	// STEP 3a - Extract points from each shape, turn to vertices
	// STEP 3b - Triangulate each shape, add faces.

	function Shape( points ) {

		Path.call( this, points );

		this.uuid = _Math.generateUUID();

		this.type = 'Shape';

		this.holes = [];

	}

	Shape.prototype = Object.assign( Object.create( Path.prototype ), {

		constructor: Shape,

		getPointsHoles: function ( divisions ) {

			var holesPts = [];

			for ( var i = 0, l = this.holes.length; i < l; i ++ ) {

				holesPts[ i ] = this.holes[ i ].getPoints( divisions );

			}

			return holesPts;

		},

		// get points of shape and holes (keypoints based on segments parameter)

		extractPoints: function ( divisions ) {

			return {

				shape: this.getPoints( divisions ),
				holes: this.getPointsHoles( divisions )

			};

		},

		copy: function ( source ) {

			Path.prototype.copy.call( this, source );

			this.holes = [];

			for ( var i = 0, l = source.holes.length; i < l; i ++ ) {

				var hole = source.holes[ i ];

				this.holes.push( hole.clone() );

			}

			return this;

		},

		toJSON: function () {

			var data = Path.prototype.toJSON.call( this );

			data.uuid = this.uuid;
			data.holes = [];

			for ( var i = 0, l = this.holes.length; i < l; i ++ ) {

				var hole = this.holes[ i ];
				data.holes.push( hole.toJSON() );

			}

			return data;

		},

		fromJSON: function ( json ) {

			Path.prototype.fromJSON.call( this, json );

			this.uuid = json.uuid;
			this.holes = [];

			for ( var i = 0, l = json.holes.length; i < l; i ++ ) {

				var hole = json.holes[ i ];
				this.holes.push( new Path().fromJSON( hole ) );

			}

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Light( color, intensity ) {

		Object3D.call( this );

		this.type = 'Light';

		this.color = new Color( color );
		this.intensity = intensity !== undefined ? intensity : 1;

		this.receiveShadow = undefined;

	}

	Light.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Light,

		isLight: true,

		copy: function ( source ) {

			Object3D.prototype.copy.call( this, source );

			this.color.copy( source.color );
			this.intensity = source.intensity;

			return this;

		},

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			data.object.color = this.color.getHex();
			data.object.intensity = this.intensity;

			if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();

			if ( this.distance !== undefined ) data.object.distance = this.distance;
			if ( this.angle !== undefined ) data.object.angle = this.angle;
			if ( this.decay !== undefined ) data.object.decay = this.decay;
			if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;

			if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();

			return data;

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function HemisphereLight( skyColor, groundColor, intensity ) {

		Light.call( this, skyColor, intensity );

		this.type = 'HemisphereLight';

		this.castShadow = undefined;

		this.position.copy( Object3D.DefaultUp );
		this.updateMatrix();

		this.groundColor = new Color( groundColor );

	}

	HemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: HemisphereLight,

		isHemisphereLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.groundColor.copy( source.groundColor );

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function LightShadow( camera ) {

		this.camera = camera;

		this.bias = 0;
		this.radius = 1;

		this.mapSize = new Vector2( 512, 512 );

		this.map = null;
		this.matrix = new Matrix4();

	}

	Object.assign( LightShadow.prototype, {

		copy: function ( source ) {

			this.camera = source.camera.clone();

			this.bias = source.bias;
			this.radius = source.radius;

			this.mapSize.copy( source.mapSize );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		toJSON: function () {

			var object = {};

			if ( this.bias !== 0 ) object.bias = this.bias;
			if ( this.radius !== 1 ) object.radius = this.radius;
			if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();

			object.camera = this.camera.toJSON( false ).object;
			delete object.camera.matrix;

			return object;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function SpotLightShadow() {

		LightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );

	}

	SpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {

		constructor: SpotLightShadow,

		isSpotLightShadow: true,

		update: function ( light ) {

			var camera = this.camera;

			var fov = _Math.RAD2DEG * 2 * light.angle;
			var aspect = this.mapSize.width / this.mapSize.height;
			var far = light.distance || camera.far;

			if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {

				camera.fov = fov;
				camera.aspect = aspect;
				camera.far = far;
				camera.updateProjectionMatrix();

			}

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function SpotLight( color, intensity, distance, angle, penumbra, decay ) {

		Light.call( this, color, intensity );

		this.type = 'SpotLight';

		this.position.copy( Object3D.DefaultUp );
		this.updateMatrix();

		this.target = new Object3D();

		Object.defineProperty( this, 'power', {
			get: function () {

				// intensity = power per solid angle.
				// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
				return this.intensity * Math.PI;

			},
			set: function ( power ) {

				// intensity = power per solid angle.
				// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
				this.intensity = power / Math.PI;

			}
		} );

		this.distance = ( distance !== undefined ) ? distance : 0;
		this.angle = ( angle !== undefined ) ? angle : Math.PI / 3;
		this.penumbra = ( penumbra !== undefined ) ? penumbra : 0;
		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.

		this.shadow = new SpotLightShadow();

	}

	SpotLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: SpotLight,

		isSpotLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.distance = source.distance;
			this.angle = source.angle;
			this.penumbra = source.penumbra;
			this.decay = source.decay;

			this.target = source.target.clone();

			this.shadow = source.shadow.clone();

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */


	function PointLight( color, intensity, distance, decay ) {

		Light.call( this, color, intensity );

		this.type = 'PointLight';

		Object.defineProperty( this, 'power', {
			get: function () {

				// intensity = power per solid angle.
				// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
				return this.intensity * 4 * Math.PI;

			},
			set: function ( power ) {

				// intensity = power per solid angle.
				// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
				this.intensity = power / ( 4 * Math.PI );

			}
		} );

		this.distance = ( distance !== undefined ) ? distance : 0;
		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.

		this.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) );

	}

	PointLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: PointLight,

		isPointLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.distance = source.distance;
			this.decay = source.decay;

			this.shadow = source.shadow.clone();

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function DirectionalLightShadow( ) {

		LightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );

	}

	DirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {

		constructor: DirectionalLightShadow

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function DirectionalLight( color, intensity ) {

		Light.call( this, color, intensity );

		this.type = 'DirectionalLight';

		this.position.copy( Object3D.DefaultUp );
		this.updateMatrix();

		this.target = new Object3D();

		this.shadow = new DirectionalLightShadow();

	}

	DirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: DirectionalLight,

		isDirectionalLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.target = source.target.clone();

			this.shadow = source.shadow.clone();

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function AmbientLight( color, intensity ) {

		Light.call( this, color, intensity );

		this.type = 'AmbientLight';

		this.castShadow = undefined;

	}

	AmbientLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: AmbientLight,

		isAmbientLight: true

	} );

	/**
	 * @author abelnation / http://github.com/abelnation
	 */

	function RectAreaLight( color, intensity, width, height ) {

		Light.call( this, color, intensity );

		this.type = 'RectAreaLight';

		this.width = ( width !== undefined ) ? width : 10;
		this.height = ( height !== undefined ) ? height : 10;

	}

	RectAreaLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: RectAreaLight,

		isRectAreaLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.width = source.width;
			this.height = source.height;

			return this;

		},

		toJSON: function ( meta ) {

			var data = Light.prototype.toJSON.call( this, meta );

			data.object.width = this.width;
			data.object.height = this.height;

			return data;

		}

	} );

	/**
	 * @author tschw
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 */

	var AnimationUtils = {

		// same as Array.prototype.slice, but also works on typed arrays
		arraySlice: function ( array, from, to ) {

			if ( AnimationUtils.isTypedArray( array ) ) {

				// in ios9 array.subarray(from, undefined) will return empty array
				// but array.subarray(from) or array.subarray(from, len) is correct
				return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );

			}

			return array.slice( from, to );

		},

		// converts an array to a specific type
		convertArray: function ( array, type, forceClone ) {

			if ( ! array || // let 'undefined' and 'null' pass
					! forceClone && array.constructor === type ) return array;

			if ( typeof type.BYTES_PER_ELEMENT === 'number' ) {

				return new type( array ); // create typed array

			}

			return Array.prototype.slice.call( array ); // create Array

		},

		isTypedArray: function ( object ) {

			return ArrayBuffer.isView( object ) &&
					! ( object instanceof DataView );

		},

		// returns an array by which times and values can be sorted
		getKeyframeOrder: function ( times ) {

			function compareTime( i, j ) {

				return times[ i ] - times[ j ];

			}

			var n = times.length;
			var result = new Array( n );
			for ( var i = 0; i !== n; ++ i ) result[ i ] = i;

			result.sort( compareTime );

			return result;

		},

		// uses the array previously returned by 'getKeyframeOrder' to sort data
		sortedArray: function ( values, stride, order ) {

			var nValues = values.length;
			var result = new values.constructor( nValues );

			for ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {

				var srcOffset = order[ i ] * stride;

				for ( var j = 0; j !== stride; ++ j ) {

					result[ dstOffset ++ ] = values[ srcOffset + j ];

				}

			}

			return result;

		},

		// function for parsing AOS keyframe formats
		flattenJSON: function ( jsonKeys, times, values, valuePropertyName ) {

			var i = 1, key = jsonKeys[ 0 ];

			while ( key !== undefined && key[ valuePropertyName ] === undefined ) {

				key = jsonKeys[ i ++ ];

			}

			if ( key === undefined ) return; // no data

			var value = key[ valuePropertyName ];
			if ( value === undefined ) return; // no data

			if ( Array.isArray( value ) ) {

				do {

					value = key[ valuePropertyName ];

					if ( value !== undefined ) {

						times.push( key.time );
						values.push.apply( values, value ); // push all elements

					}

					key = jsonKeys[ i ++ ];

				} while ( key !== undefined );

			} else if ( value.toArray !== undefined ) {

				// ...assume THREE.Math-ish

				do {

					value = key[ valuePropertyName ];

					if ( value !== undefined ) {

						times.push( key.time );
						value.toArray( values, values.length );

					}

					key = jsonKeys[ i ++ ];

				} while ( key !== undefined );

			} else {

				// otherwise push as-is

				do {

					value = key[ valuePropertyName ];

					if ( value !== undefined ) {

						times.push( key.time );
						values.push( value );

					}

					key = jsonKeys[ i ++ ];

				} while ( key !== undefined );

			}

		}

	};

	/**
	 * Abstract base class of interpolants over parametric samples.
	 *
	 * The parameter domain is one dimensional, typically the time or a path
	 * along a curve defined by the data.
	 *
	 * The sample values can have any dimensionality and derived classes may
	 * apply special interpretations to the data.
	 *
	 * This class provides the interval seek in a Template Method, deferring
	 * the actual interpolation to derived classes.
	 *
	 * Time complexity is O(1) for linear access crossing at most two points
	 * and O(log N) for random access, where N is the number of positions.
	 *
	 * References:
	 *
	 * 		http://www.oodesign.com/template-method-pattern.html
	 *
	 * @author tschw
	 */

	function Interpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		this.parameterPositions = parameterPositions;
		this._cachedIndex = 0;

		this.resultBuffer = resultBuffer !== undefined ?
			resultBuffer : new sampleValues.constructor( sampleSize );
		this.sampleValues = sampleValues;
		this.valueSize = sampleSize;

	}

	Object.assign( Interpolant.prototype, {

		evaluate: function ( t ) {

			var pp = this.parameterPositions,
				i1 = this._cachedIndex,

				t1 = pp[ i1 ],
				t0 = pp[ i1 - 1 ];

			validate_interval: {

				seek: {

					var right;

					linear_scan: {

						//- See http://jsperf.com/comparison-to-undefined/3
						//- slower code:
						//-
						//- 				if ( t >= t1 || t1 === undefined ) {
						forward_scan: if ( ! ( t < t1 ) ) {

							for ( var giveUpAt = i1 + 2; ; ) {

								if ( t1 === undefined ) {

									if ( t < t0 ) break forward_scan;

									// after end

									i1 = pp.length;
									this._cachedIndex = i1;
									return this.afterEnd_( i1 - 1, t, t0 );

								}

								if ( i1 === giveUpAt ) break; // this loop

								t0 = t1;
								t1 = pp[ ++ i1 ];

								if ( t < t1 ) {

									// we have arrived at the sought interval
									break seek;

								}

							}

							// prepare binary search on the right side of the index
							right = pp.length;
							break linear_scan;

						}

						//- slower code:
						//-					if ( t < t0 || t0 === undefined ) {
						if ( ! ( t >= t0 ) ) {

							// looping?

							var t1global = pp[ 1 ];

							if ( t < t1global ) {

								i1 = 2; // + 1, using the scan for the details
								t0 = t1global;

							}

							// linear reverse scan

							for ( var giveUpAt = i1 - 2; ; ) {

								if ( t0 === undefined ) {

									// before start

									this._cachedIndex = 0;
									return this.beforeStart_( 0, t, t1 );

								}

								if ( i1 === giveUpAt ) break; // this loop

								t1 = t0;
								t0 = pp[ -- i1 - 1 ];

								if ( t >= t0 ) {

									// we have arrived at the sought interval
									break seek;

								}

							}

							// prepare binary search on the left side of the index
							right = i1;
							i1 = 0;
							break linear_scan;

						}

						// the interval is valid

						break validate_interval;

					} // linear scan

					// binary search

					while ( i1 < right ) {

						var mid = ( i1 + right ) >>> 1;

						if ( t < pp[ mid ] ) {

							right = mid;

						} else {

							i1 = mid + 1;

						}

					}

					t1 = pp[ i1 ];
					t0 = pp[ i1 - 1 ];

					// check boundary cases, again

					if ( t0 === undefined ) {

						this._cachedIndex = 0;
						return this.beforeStart_( 0, t, t1 );

					}

					if ( t1 === undefined ) {

						i1 = pp.length;
						this._cachedIndex = i1;
						return this.afterEnd_( i1 - 1, t0, t );

					}

				} // seek

				this._cachedIndex = i1;

				this.intervalChanged_( i1, t0, t1 );

			} // validate_interval

			return this.interpolate_( i1, t0, t, t1 );

		},

		settings: null, // optional, subclass-specific settings structure
		// Note: The indirection allows central control of many interpolants.

		// --- Protected interface

		DefaultSettings_: {},

		getSettings_: function () {

			return this.settings || this.DefaultSettings_;

		},

		copySampleValue_: function ( index ) {

			// copies a sample value to the result buffer

			var result = this.resultBuffer,
				values = this.sampleValues,
				stride = this.valueSize,
				offset = index * stride;

			for ( var i = 0; i !== stride; ++ i ) {

				result[ i ] = values[ offset + i ];

			}

			return result;

		},

		// Template methods for derived classes:

		interpolate_: function ( /* i1, t0, t, t1 */ ) {

			throw new Error( 'call to abstract method' );
			// implementations shall return this.resultBuffer

		},

		intervalChanged_: function ( /* i1, t0, t1 */ ) {

			// empty

		}

	} );

	//!\ DECLARE ALIAS AFTER assign prototype !
	Object.assign( Interpolant.prototype, {

		//( 0, t, t0 ), returns this.resultBuffer
		beforeStart_: Interpolant.prototype.copySampleValue_,

		//( N-1, tN-1, t ), returns this.resultBuffer
		afterEnd_: Interpolant.prototype.copySampleValue_,

	} );

	/**
	 * Fast and simple cubic spline interpolant.
	 *
	 * It was derived from a Hermitian construction setting the first derivative
	 * at each sample position to the linear slope between neighboring positions
	 * over their parameter interval.
	 *
	 * @author tschw
	 */

	function CubicInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );

		this._weightPrev = - 0;
		this._offsetPrev = - 0;
		this._weightNext = - 0;
		this._offsetNext = - 0;

	}

	CubicInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {

		constructor: CubicInterpolant,

		DefaultSettings_: {

			endingStart: ZeroCurvatureEnding,
			endingEnd: ZeroCurvatureEnding

		},

		intervalChanged_: function ( i1, t0, t1 ) {

			var pp = this.parameterPositions,
				iPrev = i1 - 2,
				iNext = i1 + 1,

				tPrev = pp[ iPrev ],
				tNext = pp[ iNext ];

			if ( tPrev === undefined ) {

				switch ( this.getSettings_().endingStart ) {

					case ZeroSlopeEnding:

						// f'(t0) = 0
						iPrev = i1;
						tPrev = 2 * t0 - t1;

						break;

					case WrapAroundEnding:

						// use the other end of the curve
						iPrev = pp.length - 2;
						tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];

						break;

					default: // ZeroCurvatureEnding

						// f''(t0) = 0 a.k.a. Natural Spline
						iPrev = i1;
						tPrev = t1;

				}

			}

			if ( tNext === undefined ) {

				switch ( this.getSettings_().endingEnd ) {

					case ZeroSlopeEnding:

						// f'(tN) = 0
						iNext = i1;
						tNext = 2 * t1 - t0;

						break;

					case WrapAroundEnding:

						// use the other end of the curve
						iNext = 1;
						tNext = t1 + pp[ 1 ] - pp[ 0 ];

						break;

					default: // ZeroCurvatureEnding

						// f''(tN) = 0, a.k.a. Natural Spline
						iNext = i1 - 1;
						tNext = t0;

				}

			}

			var halfDt = ( t1 - t0 ) * 0.5,
				stride = this.valueSize;

			this._weightPrev = halfDt / ( t0 - tPrev );
			this._weightNext = halfDt / ( tNext - t1 );
			this._offsetPrev = iPrev * stride;
			this._offsetNext = iNext * stride;

		},

		interpolate_: function ( i1, t0, t, t1 ) {

			var result = this.resultBuffer,
				values = this.sampleValues,
				stride = this.valueSize,

				o1 = i1 * stride,		o0 = o1 - stride,
				oP = this._offsetPrev, 	oN = this._offsetNext,
				wP = this._weightPrev,	wN = this._weightNext,

				p = ( t - t0 ) / ( t1 - t0 ),
				pp = p * p,
				ppp = pp * p;

			// evaluate polynomials

			var sP = - wP * ppp + 2 * wP * pp - wP * p;
			var s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1;
			var s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;
			var sN = wN * ppp - wN * pp;

			// combine data linearly

			for ( var i = 0; i !== stride; ++ i ) {

				result[ i ] =
						sP * values[ oP + i ] +
						s0 * values[ o0 + i ] +
						s1 * values[ o1 + i ] +
						sN * values[ oN + i ];

			}

			return result;

		}

	} );

	/**
	 * @author tschw
	 */

	function LinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	LinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {

		constructor: LinearInterpolant,

		interpolate_: function ( i1, t0, t, t1 ) {

			var result = this.resultBuffer,
				values = this.sampleValues,
				stride = this.valueSize,

				offset1 = i1 * stride,
				offset0 = offset1 - stride,

				weight1 = ( t - t0 ) / ( t1 - t0 ),
				weight0 = 1 - weight1;

			for ( var i = 0; i !== stride; ++ i ) {

				result[ i ] =
						values[ offset0 + i ] * weight0 +
						values[ offset1 + i ] * weight1;

			}

			return result;

		}

	} );

	/**
	 *
	 * Interpolant that evaluates to the sample value at the position preceeding
	 * the parameter.
	 *
	 * @author tschw
	 */

	function DiscreteInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	DiscreteInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {

		constructor: DiscreteInterpolant,

		interpolate_: function ( i1 /*, t0, t, t1 */ ) {

			return this.copySampleValue_( i1 - 1 );

		}

	} );

	/**
	 *
	 * A timed sequence of keyframes for a specific property.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function KeyframeTrack( name, times, values, interpolation ) {

		if ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' );
		if ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name );

		this.name = name;

		this.times = AnimationUtils.convertArray( times, this.TimeBufferType );
		this.values = AnimationUtils.convertArray( values, this.ValueBufferType );

		this.setInterpolation( interpolation || this.DefaultInterpolation );

	}

	// Static methods

	Object.assign( KeyframeTrack, {

		// Serialization (in static context, because of constructor invocation
		// and automatic invocation of .toJSON):

		toJSON: function ( track ) {

			var trackType = track.constructor;

			var json;

			// derived classes can define a static toJSON method
			if ( trackType.toJSON !== undefined ) {

				json = trackType.toJSON( track );

			} else {

				// by default, we assume the data can be serialized as-is
				json = {

					'name': track.name,
					'times': AnimationUtils.convertArray( track.times, Array ),
					'values': AnimationUtils.convertArray( track.values, Array )

				};

				var interpolation = track.getInterpolation();

				if ( interpolation !== track.DefaultInterpolation ) {

					json.interpolation = interpolation;

				}

			}

			json.type = track.ValueTypeName; // mandatory

			return json;

		}

	} );

	Object.assign( KeyframeTrack.prototype, {

		constructor: KeyframeTrack,

		TimeBufferType: Float32Array,

		ValueBufferType: Float32Array,

		DefaultInterpolation: InterpolateLinear,

		InterpolantFactoryMethodDiscrete: function ( result ) {

			return new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result );

		},

		InterpolantFactoryMethodLinear: function ( result ) {

			return new LinearInterpolant( this.times, this.values, this.getValueSize(), result );

		},

		InterpolantFactoryMethodSmooth: function ( result ) {

			return new CubicInterpolant( this.times, this.values, this.getValueSize(), result );

		},

		setInterpolation: function ( interpolation ) {

			var factoryMethod;

			switch ( interpolation ) {

				case InterpolateDiscrete:

					factoryMethod = this.InterpolantFactoryMethodDiscrete;

					break;

				case InterpolateLinear:

					factoryMethod = this.InterpolantFactoryMethodLinear;

					break;

				case InterpolateSmooth:

					factoryMethod = this.InterpolantFactoryMethodSmooth;

					break;

			}

			if ( factoryMethod === undefined ) {

				var message = "unsupported interpolation for " +
					this.ValueTypeName + " keyframe track named " + this.name;

				if ( this.createInterpolant === undefined ) {

					// fall back to default, unless the default itself is messed up
					if ( interpolation !== this.DefaultInterpolation ) {

						this.setInterpolation( this.DefaultInterpolation );

					} else {

						throw new Error( message ); // fatal, in this case

					}

				}

				console.warn( 'THREE.KeyframeTrack:', message );
				return this;

			}

			this.createInterpolant = factoryMethod;

			return this;

		},

		getInterpolation: function () {

			switch ( this.createInterpolant ) {

				case this.InterpolantFactoryMethodDiscrete:

					return InterpolateDiscrete;

				case this.InterpolantFactoryMethodLinear:

					return InterpolateLinear;

				case this.InterpolantFactoryMethodSmooth:

					return InterpolateSmooth;

			}

		},

		getValueSize: function () {

			return this.values.length / this.times.length;

		},

		// move all keyframes either forwards or backwards in time
		shift: function ( timeOffset ) {

			if ( timeOffset !== 0.0 ) {

				var times = this.times;

				for ( var i = 0, n = times.length; i !== n; ++ i ) {

					times[ i ] += timeOffset;

				}

			}

			return this;

		},

		// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
		scale: function ( timeScale ) {

			if ( timeScale !== 1.0 ) {

				var times = this.times;

				for ( var i = 0, n = times.length; i !== n; ++ i ) {

					times[ i ] *= timeScale;

				}

			}

			return this;

		},

		// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
		// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
		trim: function ( startTime, endTime ) {

			var times = this.times,
				nKeys = times.length,
				from = 0,
				to = nKeys - 1;

			while ( from !== nKeys && times[ from ] < startTime ) {

				++ from;

			}

			while ( to !== - 1 && times[ to ] > endTime ) {

				-- to;

			}

			++ to; // inclusive -> exclusive bound

			if ( from !== 0 || to !== nKeys ) {

				// empty tracks are forbidden, so keep at least one keyframe
				if ( from >= to ) to = Math.max( to, 1 ), from = to - 1;

				var stride = this.getValueSize();
				this.times = AnimationUtils.arraySlice( times, from, to );
				this.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride );

			}

			return this;

		},

		// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
		validate: function () {

			var valid = true;

			var valueSize = this.getValueSize();
			if ( valueSize - Math.floor( valueSize ) !== 0 ) {

				console.error( 'THREE.KeyframeTrack: Invalid value size in track.', this );
				valid = false;

			}

			var times = this.times,
				values = this.values,

				nKeys = times.length;

			if ( nKeys === 0 ) {

				console.error( 'THREE.KeyframeTrack: Track is empty.', this );
				valid = false;

			}

			var prevTime = null;

			for ( var i = 0; i !== nKeys; i ++ ) {

				var currTime = times[ i ];

				if ( typeof currTime === 'number' && isNaN( currTime ) ) {

					console.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime );
					valid = false;
					break;

				}

				if ( prevTime !== null && prevTime > currTime ) {

					console.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime );
					valid = false;
					break;

				}

				prevTime = currTime;

			}

			if ( values !== undefined ) {

				if ( AnimationUtils.isTypedArray( values ) ) {

					for ( var i = 0, n = values.length; i !== n; ++ i ) {

						var value = values[ i ];

						if ( isNaN( value ) ) {

							console.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value );
							valid = false;
							break;

						}

					}

				}

			}

			return valid;

		},

		// removes equivalent sequential keys as common in morph target sequences
		// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
		optimize: function () {

			var times = this.times,
				values = this.values,
				stride = this.getValueSize(),

				smoothInterpolation = this.getInterpolation() === InterpolateSmooth,

				writeIndex = 1,
				lastIndex = times.length - 1;

			for ( var i = 1; i < lastIndex; ++ i ) {

				var keep = false;

				var time = times[ i ];
				var timeNext = times[ i + 1 ];

				// remove adjacent keyframes scheduled at the same time

				if ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {

					if ( ! smoothInterpolation ) {

						// remove unnecessary keyframes same as their neighbors

						var offset = i * stride,
							offsetP = offset - stride,
							offsetN = offset + stride;

						for ( var j = 0; j !== stride; ++ j ) {

							var value = values[ offset + j ];

							if ( value !== values[ offsetP + j ] ||
								value !== values[ offsetN + j ] ) {

								keep = true;
								break;

							}

						}

					} else {

						keep = true;

					}

				}

				// in-place compaction

				if ( keep ) {

					if ( i !== writeIndex ) {

						times[ writeIndex ] = times[ i ];

						var readOffset = i * stride,
							writeOffset = writeIndex * stride;

						for ( var j = 0; j !== stride; ++ j ) {

							values[ writeOffset + j ] = values[ readOffset + j ];

						}

					}

					++ writeIndex;

				}

			}

			// flush last keyframe (compaction looks ahead)

			if ( lastIndex > 0 ) {

				times[ writeIndex ] = times[ lastIndex ];

				for ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) {

					values[ writeOffset + j ] = values[ readOffset + j ];

				}

				++ writeIndex;

			}

			if ( writeIndex !== times.length ) {

				this.times = AnimationUtils.arraySlice( times, 0, writeIndex );
				this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );

			}

			return this;

		}

	} );

	/**
	 *
	 * A Track of Boolean keyframe values.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function BooleanKeyframeTrack( name, times, values ) {

		KeyframeTrack.call( this, name, times, values );

	}

	BooleanKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {

		constructor: BooleanKeyframeTrack,

		ValueTypeName: 'bool',
		ValueBufferType: Array,

		DefaultInterpolation: InterpolateDiscrete,

		InterpolantFactoryMethodLinear: undefined,
		InterpolantFactoryMethodSmooth: undefined

		// Note: Actually this track could have a optimized / compressed
		// representation of a single value and a custom interpolant that
		// computes "firstValue ^ isOdd( index )".

	} );

	/**
	 *
	 * A Track of keyframe values that represent color.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function ColorKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrack.call( this, name, times, values, interpolation );

	}

	ColorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {

		constructor: ColorKeyframeTrack,

		ValueTypeName: 'color'

		// ValueBufferType is inherited

		// DefaultInterpolation is inherited

		// Note: Very basic implementation and nothing special yet.
		// However, this is the place for color space parameterization.

	} );

	/**
	 *
	 * A Track of numeric keyframe values.
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function NumberKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrack.call( this, name, times, values, interpolation );

	}

	NumberKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {

		constructor: NumberKeyframeTrack,

		ValueTypeName: 'number'

		// ValueBufferType is inherited

		// DefaultInterpolation is inherited

	} );

	/**
	 * Spherical linear unit quaternion interpolant.
	 *
	 * @author tschw
	 */

	function QuaternionLinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	QuaternionLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {

		constructor: QuaternionLinearInterpolant,

		interpolate_: function ( i1, t0, t, t1 ) {

			var result = this.resultBuffer,
				values = this.sampleValues,
				stride = this.valueSize,

				offset = i1 * stride,

				alpha = ( t - t0 ) / ( t1 - t0 );

			for ( var end = offset + stride; offset !== end; offset += 4 ) {

				Quaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha );

			}

			return result;

		}

	} );

	/**
	 *
	 * A Track of quaternion keyframe values.
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function QuaternionKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrack.call( this, name, times, values, interpolation );

	}

	QuaternionKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {

		constructor: QuaternionKeyframeTrack,

		ValueTypeName: 'quaternion',

		// ValueBufferType is inherited

		DefaultInterpolation: InterpolateLinear,

		InterpolantFactoryMethodLinear: function ( result ) {

			return new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result );

		},

		InterpolantFactoryMethodSmooth: undefined // not yet implemented

	} );

	/**
	 *
	 * A Track that interpolates Strings
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function StringKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrack.call( this, name, times, values, interpolation );

	}

	StringKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {

		constructor: StringKeyframeTrack,

		ValueTypeName: 'string',
		ValueBufferType: Array,

		DefaultInterpolation: InterpolateDiscrete,

		InterpolantFactoryMethodLinear: undefined,

		InterpolantFactoryMethodSmooth: undefined

	} );

	/**
	 *
	 * A Track of vectored keyframe values.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function VectorKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrack.call( this, name, times, values, interpolation );

	}

	VectorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {

		constructor: VectorKeyframeTrack,

		ValueTypeName: 'vector'

		// ValueBufferType is inherited

		// DefaultInterpolation is inherited

	} );

	/**
	 *
	 * Reusable set of Tracks that represent an animation.
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 */

	function AnimationClip( name, duration, tracks ) {

		this.name = name;
		this.tracks = tracks;
		this.duration = ( duration !== undefined ) ? duration : - 1;

		this.uuid = _Math.generateUUID();

		// this means it should figure out its duration by scanning the tracks
		if ( this.duration < 0 ) {

			this.resetDuration();

		}

	}

	function getTrackTypeForValueTypeName( typeName ) {

		switch ( typeName.toLowerCase() ) {

			case 'scalar':
			case 'double':
			case 'float':
			case 'number':
			case 'integer':

				return NumberKeyframeTrack;

			case 'vector':
			case 'vector2':
			case 'vector3':
			case 'vector4':

				return VectorKeyframeTrack;

			case 'color':

				return ColorKeyframeTrack;

			case 'quaternion':

				return QuaternionKeyframeTrack;

			case 'bool':
			case 'boolean':

				return BooleanKeyframeTrack;

			case 'string':

				return StringKeyframeTrack;

		}

		throw new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName );

	}

	function parseKeyframeTrack( json ) {

		if ( json.type === undefined ) {

			throw new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' );

		}

		var trackType = getTrackTypeForValueTypeName( json.type );

		if ( json.times === undefined ) {

			var times = [], values = [];

			AnimationUtils.flattenJSON( json.keys, times, values, 'value' );

			json.times = times;
			json.values = values;

		}

		// derived classes can define a static parse method
		if ( trackType.parse !== undefined ) {

			return trackType.parse( json );

		} else {

			// by default, we assume a constructor compatible with the base
			return new trackType( json.name, json.times, json.values, json.interpolation );

		}

	}

	Object.assign( AnimationClip, {

		parse: function ( json ) {

			var tracks = [],
				jsonTracks = json.tracks,
				frameTime = 1.0 / ( json.fps || 1.0 );

			for ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {

				tracks.push( parseKeyframeTrack( jsonTracks[ i ] ).scale( frameTime ) );

			}

			return new AnimationClip( json.name, json.duration, tracks );

		},

		toJSON: function ( clip ) {

			var tracks = [],
				clipTracks = clip.tracks;

			var json = {

				'name': clip.name,
				'duration': clip.duration,
				'tracks': tracks,
				'uuid': clip.uuid

			};

			for ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {

				tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );

			}

			return json;

		},

		CreateFromMorphTargetSequence: function ( name, morphTargetSequence, fps, noLoop ) {

			var numMorphTargets = morphTargetSequence.length;
			var tracks = [];

			for ( var i = 0; i < numMorphTargets; i ++ ) {

				var times = [];
				var values = [];

				times.push(
					( i + numMorphTargets - 1 ) % numMorphTargets,
					i,
					( i + 1 ) % numMorphTargets );

				values.push( 0, 1, 0 );

				var order = AnimationUtils.getKeyframeOrder( times );
				times = AnimationUtils.sortedArray( times, 1, order );
				values = AnimationUtils.sortedArray( values, 1, order );

				// if there is a key at the first frame, duplicate it as the
				// last frame as well for perfect loop.
				if ( ! noLoop && times[ 0 ] === 0 ) {

					times.push( numMorphTargets );
					values.push( values[ 0 ] );

				}

				tracks.push(
					new NumberKeyframeTrack(
						'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',
						times, values
					).scale( 1.0 / fps ) );

			}

			return new AnimationClip( name, - 1, tracks );

		},

		findByName: function ( objectOrClipArray, name ) {

			var clipArray = objectOrClipArray;

			if ( ! Array.isArray( objectOrClipArray ) ) {

				var o = objectOrClipArray;
				clipArray = o.geometry && o.geometry.animations || o.animations;

			}

			for ( var i = 0; i < clipArray.length; i ++ ) {

				if ( clipArray[ i ].name === name ) {

					return clipArray[ i ];

				}

			}

			return null;

		},

		CreateClipsFromMorphTargetSequences: function ( morphTargets, fps, noLoop ) {

			var animationToMorphTargets = {};

			// tested with https://regex101.com/ on trick sequences
			// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
			var pattern = /^([\w-]*?)([\d]+)$/;

			// sort morph target names into animation groups based
			// patterns like Walk_001, Walk_002, Run_001, Run_002
			for ( var i = 0, il = morphTargets.length; i < il; i ++ ) {

				var morphTarget = morphTargets[ i ];
				var parts = morphTarget.name.match( pattern );

				if ( parts && parts.length > 1 ) {

					var name = parts[ 1 ];

					var animationMorphTargets = animationToMorphTargets[ name ];
					if ( ! animationMorphTargets ) {

						animationToMorphTargets[ name ] = animationMorphTargets = [];

					}

					animationMorphTargets.push( morphTarget );

				}

			}

			var clips = [];

			for ( var name in animationToMorphTargets ) {

				clips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );

			}

			return clips;

		},

		// parse the animation.hierarchy format
		parseAnimation: function ( animation, bones ) {

			if ( ! animation ) {

				console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );
				return null;

			}

			var addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {

				// only return track if there are actually keys.
				if ( animationKeys.length !== 0 ) {

					var times = [];
					var values = [];

					AnimationUtils.flattenJSON( animationKeys, times, values, propertyName );

					// empty keys are filtered out, so check again
					if ( times.length !== 0 ) {

						destTracks.push( new trackType( trackName, times, values ) );

					}

				}

			};

			var tracks = [];

			var clipName = animation.name || 'default';
			// automatic length determination in AnimationClip.
			var duration = animation.length || - 1;
			var fps = animation.fps || 30;

			var hierarchyTracks = animation.hierarchy || [];

			for ( var h = 0; h < hierarchyTracks.length; h ++ ) {

				var animationKeys = hierarchyTracks[ h ].keys;

				// skip empty tracks
				if ( ! animationKeys || animationKeys.length === 0 ) continue;

				// process morph targets
				if ( animationKeys[ 0 ].morphTargets ) {

					// figure out all morph targets used in this track
					var morphTargetNames = {};

					for ( var k = 0; k < animationKeys.length; k ++ ) {

						if ( animationKeys[ k ].morphTargets ) {

							for ( var m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {

								morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;

							}

						}

					}

					// create a track for each morph target with all zero
					// morphTargetInfluences except for the keys in which
					// the morphTarget is named.
					for ( var morphTargetName in morphTargetNames ) {

						var times = [];
						var values = [];

						for ( var m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {

							var animationKey = animationKeys[ k ];

							times.push( animationKey.time );
							values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );

						}

						tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );

					}

					duration = morphTargetNames.length * ( fps || 1.0 );

				} else {

					// ...assume skeletal animation

					var boneName = '.bones[' + bones[ h ].name + ']';

					addNonemptyTrack(
						VectorKeyframeTrack, boneName + '.position',
						animationKeys, 'pos', tracks );

					addNonemptyTrack(
						QuaternionKeyframeTrack, boneName + '.quaternion',
						animationKeys, 'rot', tracks );

					addNonemptyTrack(
						VectorKeyframeTrack, boneName + '.scale',
						animationKeys, 'scl', tracks );

				}

			}

			if ( tracks.length === 0 ) {

				return null;

			}

			var clip = new AnimationClip( clipName, duration, tracks );

			return clip;

		}

	} );

	Object.assign( AnimationClip.prototype, {

		resetDuration: function () {

			var tracks = this.tracks, duration = 0;

			for ( var i = 0, n = tracks.length; i !== n; ++ i ) {

				var track = this.tracks[ i ];

				duration = Math.max( duration, track.times[ track.times.length - 1 ] );

			}

			this.duration = duration;

			return this;

		},

		trim: function () {

			for ( var i = 0; i < this.tracks.length; i ++ ) {

				this.tracks[ i ].trim( 0, this.duration );

			}

			return this;

		},

		validate: function () {

			var valid = true;

			for ( var i = 0; i < this.tracks.length; i ++ ) {

				valid = valid && this.tracks[ i ].validate();

			}

			return valid;

		},

		optimize: function () {

			for ( var i = 0; i < this.tracks.length; i ++ ) {

				this.tracks[ i ].optimize();

			}

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function MaterialLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
		this.textures = {};

	}

	Object.assign( MaterialLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var loader = new FileLoader( scope.manager );
			loader.load( url, function ( text ) {

				onLoad( scope.parse( JSON.parse( text ) ) );

			}, onProgress, onError );

		},

		setTextures: function ( value ) {

			this.textures = value;

		},

		parse: function ( json ) {

			var textures = this.textures;

			function getTexture( name ) {

				if ( textures[ name ] === undefined ) {

					console.warn( 'THREE.MaterialLoader: Undefined texture', name );

				}

				return textures[ name ];

			}

			var material = new Materials[ json.type ]();

			if ( json.uuid !== undefined ) material.uuid = json.uuid;
			if ( json.name !== undefined ) material.name = json.name;
			if ( json.color !== undefined ) material.color.setHex( json.color );
			if ( json.roughness !== undefined ) material.roughness = json.roughness;
			if ( json.metalness !== undefined ) material.metalness = json.metalness;
			if ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );
			if ( json.specular !== undefined ) material.specular.setHex( json.specular );
			if ( json.shininess !== undefined ) material.shininess = json.shininess;
			if ( json.clearCoat !== undefined ) material.clearCoat = json.clearCoat;
			if ( json.clearCoatRoughness !== undefined ) material.clearCoatRoughness = json.clearCoatRoughness;
			if ( json.uniforms !== undefined ) material.uniforms = json.uniforms;
			if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;
			if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;
			if ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;
			if ( json.fog !== undefined ) material.fog = json.fog;
			if ( json.flatShading !== undefined ) material.flatShading = json.flatShading;
			if ( json.blending !== undefined ) material.blending = json.blending;
			if ( json.side !== undefined ) material.side = json.side;
			if ( json.opacity !== undefined ) material.opacity = json.opacity;
			if ( json.transparent !== undefined ) material.transparent = json.transparent;
			if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;
			if ( json.depthTest !== undefined ) material.depthTest = json.depthTest;
			if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;
			if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;
			if ( json.wireframe !== undefined ) material.wireframe = json.wireframe;
			if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;
			if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;
			if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;

			if ( json.rotation !== undefined ) material.rotation = json.rotation;

			if ( json.linewidth !== 1 ) material.linewidth = json.linewidth;
			if ( json.dashSize !== undefined ) material.dashSize = json.dashSize;
			if ( json.gapSize !== undefined ) material.gapSize = json.gapSize;
			if ( json.scale !== undefined ) material.scale = json.scale;

			if ( json.polygonOffset !== undefined ) material.polygonOffset = json.polygonOffset;
			if ( json.polygonOffsetFactor !== undefined ) material.polygonOffsetFactor = json.polygonOffsetFactor;
			if ( json.polygonOffsetUnits !== undefined ) material.polygonOffsetUnits = json.polygonOffsetUnits;

			if ( json.skinning !== undefined ) material.skinning = json.skinning;
			if ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets;
			if ( json.dithering !== undefined ) material.dithering = json.dithering;

			if ( json.visible !== undefined ) material.visible = json.visible;
			if ( json.userData !== undefined ) material.userData = json.userData;

			// Deprecated

			if ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading

			// for PointsMaterial

			if ( json.size !== undefined ) material.size = json.size;
			if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;

			// maps

			if ( json.map !== undefined ) material.map = getTexture( json.map );

			if ( json.alphaMap !== undefined ) {

				material.alphaMap = getTexture( json.alphaMap );
				material.transparent = true;

			}

			if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );
			if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;

			if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );
			if ( json.normalMapType !== undefined ) material.normalMapType = json.normalMapType;
			if ( json.normalScale !== undefined ) {

				var normalScale = json.normalScale;

				if ( Array.isArray( normalScale ) === false ) {

					// Blender exporter used to export a scalar. See #7459

					normalScale = [ normalScale, normalScale ];

				}

				material.normalScale = new Vector2().fromArray( normalScale );

			}

			if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );
			if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;
			if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;

			if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );
			if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );

			if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );
			if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;

			if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );

			if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );

			if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;

			if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );
			if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;

			if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );
			if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;

			if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );

			return material;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function BufferGeometryLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( BufferGeometryLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var loader = new FileLoader( scope.manager );
			loader.load( url, function ( text ) {

				onLoad( scope.parse( JSON.parse( text ) ) );

			}, onProgress, onError );

		},

		parse: function ( json ) {

			var geometry = new BufferGeometry();

			var index = json.data.index;

			if ( index !== undefined ) {

				var typedArray = new TYPED_ARRAYS[ index.type ]( index.array );
				geometry.setIndex( new BufferAttribute( typedArray, 1 ) );

			}

			var attributes = json.data.attributes;

			for ( var key in attributes ) {

				var attribute = attributes[ key ];
				var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );

				geometry.addAttribute( key, new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ) );

			}

			var groups = json.data.groups || json.data.drawcalls || json.data.offsets;

			if ( groups !== undefined ) {

				for ( var i = 0, n = groups.length; i !== n; ++ i ) {

					var group = groups[ i ];

					geometry.addGroup( group.start, group.count, group.materialIndex );

				}

			}

			var boundingSphere = json.data.boundingSphere;

			if ( boundingSphere !== undefined ) {

				var center = new Vector3();

				if ( boundingSphere.center !== undefined ) {

					center.fromArray( boundingSphere.center );

				}

				geometry.boundingSphere = new Sphere( center, boundingSphere.radius );

			}

			return geometry;

		}

	} );

	var TYPED_ARRAYS = {
		Int8Array: Int8Array,
		Uint8Array: Uint8Array,
		// Workaround for IE11 pre KB2929437. See #11440
		Uint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array,
		Int16Array: Int16Array,
		Uint16Array: Uint16Array,
		Int32Array: Int32Array,
		Uint32Array: Uint32Array,
		Float32Array: Float32Array,
		Float64Array: Float64Array
	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Loader() {}

	Loader.Handlers = {

		handlers: [],

		add: function ( regex, loader ) {

			this.handlers.push( regex, loader );

		},

		get: function ( file ) {

			var handlers = this.handlers;

			for ( var i = 0, l = handlers.length; i < l; i += 2 ) {

				var regex = handlers[ i ];
				var loader = handlers[ i + 1 ];

				if ( regex.test( file ) ) {

					return loader;

				}

			}

			return null;

		}

	};

	Object.assign( Loader.prototype, {

		crossOrigin: 'anonymous',

		onLoadStart: function () {},

		onLoadProgress: function () {},

		onLoadComplete: function () {},

		initMaterials: function ( materials, texturePath, crossOrigin ) {

			var array = [];

			for ( var i = 0; i < materials.length; ++ i ) {

				array[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );

			}

			return array;

		},

		createMaterial: ( function () {

			var BlendingMode = {
				NoBlending: NoBlending,
				NormalBlending: NormalBlending,
				AdditiveBlending: AdditiveBlending,
				SubtractiveBlending: SubtractiveBlending,
				MultiplyBlending: MultiplyBlending,
				CustomBlending: CustomBlending
			};

			var color = new Color();
			var textureLoader = new TextureLoader();
			var materialLoader = new MaterialLoader();

			return function createMaterial( m, texturePath, crossOrigin ) {

				// convert from old material format

				var textures = {};

				function loadTexture( path, repeat, offset, wrap, anisotropy ) {

					var fullPath = texturePath + path;
					var loader = Loader.Handlers.get( fullPath );

					var texture;

					if ( loader !== null ) {

						texture = loader.load( fullPath );

					} else {

						textureLoader.setCrossOrigin( crossOrigin );
						texture = textureLoader.load( fullPath );

					}

					if ( repeat !== undefined ) {

						texture.repeat.fromArray( repeat );

						if ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping;
						if ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping;

					}

					if ( offset !== undefined ) {

						texture.offset.fromArray( offset );

					}

					if ( wrap !== undefined ) {

						if ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping;
						if ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping;

						if ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping;
						if ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping;

					}

					if ( anisotropy !== undefined ) {

						texture.anisotropy = anisotropy;

					}

					var uuid = _Math.generateUUID();

					textures[ uuid ] = texture;

					return uuid;

				}

				//

				var json = {
					uuid: _Math.generateUUID(),
					type: 'MeshLambertMaterial'
				};

				for ( var name in m ) {

					var value = m[ name ];

					switch ( name ) {

						case 'DbgColor':
						case 'DbgIndex':
						case 'opticalDensity':
						case 'illumination':
							break;
						case 'DbgName':
							json.name = value;
							break;
						case 'blending':
							json.blending = BlendingMode[ value ];
							break;
						case 'colorAmbient':
						case 'mapAmbient':
							console.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' );
							break;
						case 'colorDiffuse':
							json.color = color.fromArray( value ).getHex();
							break;
						case 'colorSpecular':
							json.specular = color.fromArray( value ).getHex();
							break;
						case 'colorEmissive':
							json.emissive = color.fromArray( value ).getHex();
							break;
						case 'specularCoef':
							json.shininess = value;
							break;
						case 'shading':
							if ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';
							if ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';
							if ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';
							break;
						case 'mapDiffuse':
							json.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );
							break;
						case 'mapDiffuseRepeat':
						case 'mapDiffuseOffset':
						case 'mapDiffuseWrap':
						case 'mapDiffuseAnisotropy':
							break;
						case 'mapEmissive':
							json.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy );
							break;
						case 'mapEmissiveRepeat':
						case 'mapEmissiveOffset':
						case 'mapEmissiveWrap':
						case 'mapEmissiveAnisotropy':
							break;
						case 'mapLight':
							json.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );
							break;
						case 'mapLightRepeat':
						case 'mapLightOffset':
						case 'mapLightWrap':
						case 'mapLightAnisotropy':
							break;
						case 'mapAO':
							json.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );
							break;
						case 'mapAORepeat':
						case 'mapAOOffset':
						case 'mapAOWrap':
						case 'mapAOAnisotropy':
							break;
						case 'mapBump':
							json.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );
							break;
						case 'mapBumpScale':
							json.bumpScale = value;
							break;
						case 'mapBumpRepeat':
						case 'mapBumpOffset':
						case 'mapBumpWrap':
						case 'mapBumpAnisotropy':
							break;
						case 'mapNormal':
							json.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );
							break;
						case 'mapNormalFactor':
							json.normalScale = value;
							break;
						case 'mapNormalRepeat':
						case 'mapNormalOffset':
						case 'mapNormalWrap':
						case 'mapNormalAnisotropy':
							break;
						case 'mapSpecular':
							json.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );
							break;
						case 'mapSpecularRepeat':
						case 'mapSpecularOffset':
						case 'mapSpecularWrap':
						case 'mapSpecularAnisotropy':
							break;
						case 'mapMetalness':
							json.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy );
							break;
						case 'mapMetalnessRepeat':
						case 'mapMetalnessOffset':
						case 'mapMetalnessWrap':
						case 'mapMetalnessAnisotropy':
							break;
						case 'mapRoughness':
							json.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy );
							break;
						case 'mapRoughnessRepeat':
						case 'mapRoughnessOffset':
						case 'mapRoughnessWrap':
						case 'mapRoughnessAnisotropy':
							break;
						case 'mapAlpha':
							json.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );
							break;
						case 'mapAlphaRepeat':
						case 'mapAlphaOffset':
						case 'mapAlphaWrap':
						case 'mapAlphaAnisotropy':
							break;
						case 'flipSided':
							json.side = BackSide;
							break;
						case 'doubleSided':
							json.side = DoubleSide;
							break;
						case 'transparency':
							console.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );
							json.opacity = value;
							break;
						case 'depthTest':
						case 'depthWrite':
						case 'colorWrite':
						case 'opacity':
						case 'reflectivity':
						case 'transparent':
						case 'visible':
						case 'wireframe':
							json[ name ] = value;
							break;
						case 'vertexColors':
							if ( value === true ) json.vertexColors = VertexColors;
							if ( value === 'face' ) json.vertexColors = FaceColors;
							break;
						default:
							console.error( 'THREE.Loader.createMaterial: Unsupported', name, value );
							break;

					}

				}

				if ( json.type === 'MeshBasicMaterial' ) delete json.emissive;
				if ( json.type !== 'MeshPhongMaterial' ) delete json.specular;

				if ( json.opacity < 1 ) json.transparent = true;

				materialLoader.setTextures( textures );

				return materialLoader.parse( json );

			};

		} )()

	} );

	/**
	 * @author Don McCurdy / https://www.donmccurdy.com
	 */

	var LoaderUtils = {

		decodeText: function ( array ) {

			if ( typeof TextDecoder !== 'undefined' ) {

				return new TextDecoder().decode( array );

			}

			// Avoid the String.fromCharCode.apply(null, array) shortcut, which
			// throws a "maximum call stack size exceeded" error for large arrays.

			var s = '';

			for ( var i = 0, il = array.length; i < il; i ++ ) {

				// Implicitly assumes little-endian.
				s += String.fromCharCode( array[ i ] );

			}

			// Merges multi-byte utf-8 characters.
			return decodeURIComponent( escape( s ) );

		},

		extractUrlBase: function ( url ) {

			var index = url.lastIndexOf( '/' );

			if ( index === - 1 ) return './';

			return url.substr( 0, index + 1 );

		}

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function JSONLoader( manager ) {

		if ( typeof manager === 'boolean' ) {

			console.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' );
			manager = undefined;

		}

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

		this.withCredentials = false;

	}

	Object.assign( JSONLoader.prototype, {

		crossOrigin: 'anonymous',

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var texturePath = this.texturePath && ( typeof this.texturePath === 'string' ) ? this.texturePath : LoaderUtils.extractUrlBase( url );

			var loader = new FileLoader( this.manager );
			loader.setWithCredentials( this.withCredentials );
			loader.load( url, function ( text ) {

				var json = JSON.parse( text );
				var metadata = json.metadata;

				if ( metadata !== undefined ) {

					var type = metadata.type;

					if ( type !== undefined ) {

						if ( type.toLowerCase() === 'object' ) {

							console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' );
							return;

						}

					}

				}

				var object = scope.parse( json, texturePath );
				onLoad( object.geometry, object.materials );

			}, onProgress, onError );

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		setTexturePath: function ( value ) {

			this.texturePath = value;
			return this;

		},

		parse: ( function () {

			function parseModel( json, geometry ) {

				function isBitSet( value, position ) {

					return value & ( 1 << position );

				}

				var i, j, fi,

					offset, zLength,

					colorIndex, normalIndex, uvIndex, materialIndex,

					type,
					isQuad,
					hasMaterial,
					hasFaceVertexUv,
					hasFaceNormal, hasFaceVertexNormal,
					hasFaceColor, hasFaceVertexColor,

					vertex, face, faceA, faceB, hex, normal,

					uvLayer, uv, u, v,

					faces = json.faces,
					vertices = json.vertices,
					normals = json.normals,
					colors = json.colors,

					scale = json.scale,

					nUvLayers = 0;


				if ( json.uvs !== undefined ) {

					// disregard empty arrays

					for ( i = 0; i < json.uvs.length; i ++ ) {

						if ( json.uvs[ i ].length ) nUvLayers ++;

					}

					for ( i = 0; i < nUvLayers; i ++ ) {

						geometry.faceVertexUvs[ i ] = [];

					}

				}

				offset = 0;
				zLength = vertices.length;

				while ( offset < zLength ) {

					vertex = new Vector3();

					vertex.x = vertices[ offset ++ ] * scale;
					vertex.y = vertices[ offset ++ ] * scale;
					vertex.z = vertices[ offset ++ ] * scale;

					geometry.vertices.push( vertex );

				}

				offset = 0;
				zLength = faces.length;

				while ( offset < zLength ) {

					type = faces[ offset ++ ];

					isQuad = isBitSet( type, 0 );
					hasMaterial = isBitSet( type, 1 );
					hasFaceVertexUv = isBitSet( type, 3 );
					hasFaceNormal = isBitSet( type, 4 );
					hasFaceVertexNormal = isBitSet( type, 5 );
					hasFaceColor = isBitSet( type, 6 );
					hasFaceVertexColor = isBitSet( type, 7 );

					// console.log("type", type, "bits", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor);

					if ( isQuad ) {

						faceA = new Face3();
						faceA.a = faces[ offset ];
						faceA.b = faces[ offset + 1 ];
						faceA.c = faces[ offset + 3 ];

						faceB = new Face3();
						faceB.a = faces[ offset + 1 ];
						faceB.b = faces[ offset + 2 ];
						faceB.c = faces[ offset + 3 ];

						offset += 4;

						if ( hasMaterial ) {

							materialIndex = faces[ offset ++ ];
							faceA.materialIndex = materialIndex;
							faceB.materialIndex = materialIndex;

						}

						// to get face <=> uv index correspondence

						fi = geometry.faces.length;

						if ( hasFaceVertexUv ) {

							for ( i = 0; i < nUvLayers; i ++ ) {

								uvLayer = json.uvs[ i ];

								geometry.faceVertexUvs[ i ][ fi ] = [];
								geometry.faceVertexUvs[ i ][ fi + 1 ] = [];

								for ( j = 0; j < 4; j ++ ) {

									uvIndex = faces[ offset ++ ];

									u = uvLayer[ uvIndex * 2 ];
									v = uvLayer[ uvIndex * 2 + 1 ];

									uv = new Vector2( u, v );

									if ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv );
									if ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv );

								}

							}

						}

						if ( hasFaceNormal ) {

							normalIndex = faces[ offset ++ ] * 3;

							faceA.normal.set(
								normals[ normalIndex ++ ],
								normals[ normalIndex ++ ],
								normals[ normalIndex ]
							);

							faceB.normal.copy( faceA.normal );

						}

						if ( hasFaceVertexNormal ) {

							for ( i = 0; i < 4; i ++ ) {

								normalIndex = faces[ offset ++ ] * 3;

								normal = new Vector3(
									normals[ normalIndex ++ ],
									normals[ normalIndex ++ ],
									normals[ normalIndex ]
								);


								if ( i !== 2 ) faceA.vertexNormals.push( normal );
								if ( i !== 0 ) faceB.vertexNormals.push( normal );

							}

						}


						if ( hasFaceColor ) {

							colorIndex = faces[ offset ++ ];
							hex = colors[ colorIndex ];

							faceA.color.setHex( hex );
							faceB.color.setHex( hex );

						}


						if ( hasFaceVertexColor ) {

							for ( i = 0; i < 4; i ++ ) {

								colorIndex = faces[ offset ++ ];
								hex = colors[ colorIndex ];

								if ( i !== 2 ) faceA.vertexColors.push( new Color( hex ) );
								if ( i !== 0 ) faceB.vertexColors.push( new Color( hex ) );

							}

						}

						geometry.faces.push( faceA );
						geometry.faces.push( faceB );

					} else {

						face = new Face3();
						face.a = faces[ offset ++ ];
						face.b = faces[ offset ++ ];
						face.c = faces[ offset ++ ];

						if ( hasMaterial ) {

							materialIndex = faces[ offset ++ ];
							face.materialIndex = materialIndex;

						}

						// to get face <=> uv index correspondence

						fi = geometry.faces.length;

						if ( hasFaceVertexUv ) {

							for ( i = 0; i < nUvLayers; i ++ ) {

								uvLayer = json.uvs[ i ];

								geometry.faceVertexUvs[ i ][ fi ] = [];

								for ( j = 0; j < 3; j ++ ) {

									uvIndex = faces[ offset ++ ];

									u = uvLayer[ uvIndex * 2 ];
									v = uvLayer[ uvIndex * 2 + 1 ];

									uv = new Vector2( u, v );

									geometry.faceVertexUvs[ i ][ fi ].push( uv );

								}

							}

						}

						if ( hasFaceNormal ) {

							normalIndex = faces[ offset ++ ] * 3;

							face.normal.set(
								normals[ normalIndex ++ ],
								normals[ normalIndex ++ ],
								normals[ normalIndex ]
							);

						}

						if ( hasFaceVertexNormal ) {

							for ( i = 0; i < 3; i ++ ) {

								normalIndex = faces[ offset ++ ] * 3;

								normal = new Vector3(
									normals[ normalIndex ++ ],
									normals[ normalIndex ++ ],
									normals[ normalIndex ]
								);

								face.vertexNormals.push( normal );

							}

						}


						if ( hasFaceColor ) {

							colorIndex = faces[ offset ++ ];
							face.color.setHex( colors[ colorIndex ] );

						}


						if ( hasFaceVertexColor ) {

							for ( i = 0; i < 3; i ++ ) {

								colorIndex = faces[ offset ++ ];
								face.vertexColors.push( new Color( colors[ colorIndex ] ) );

							}

						}

						geometry.faces.push( face );

					}

				}

			}

			function parseSkin( json, geometry ) {

				var influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2;

				if ( json.skinWeights ) {

					for ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) {

						var x = json.skinWeights[ i ];
						var y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0;
						var z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0;
						var w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0;

						geometry.skinWeights.push( new Vector4( x, y, z, w ) );

					}

				}

				if ( json.skinIndices ) {

					for ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) {

						var a = json.skinIndices[ i ];
						var b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0;
						var c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0;
						var d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0;

						geometry.skinIndices.push( new Vector4( a, b, c, d ) );

					}

				}

				geometry.bones = json.bones;

				if ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) {

					console.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' +
						geometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' );

				}

			}

			function parseMorphing( json, geometry ) {

				var scale = json.scale;

				if ( json.morphTargets !== undefined ) {

					for ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) {

						geometry.morphTargets[ i ] = {};
						geometry.morphTargets[ i ].name = json.morphTargets[ i ].name;
						geometry.morphTargets[ i ].vertices = [];

						var dstVertices = geometry.morphTargets[ i ].vertices;
						var srcVertices = json.morphTargets[ i ].vertices;

						for ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) {

							var vertex = new Vector3();
							vertex.x = srcVertices[ v ] * scale;
							vertex.y = srcVertices[ v + 1 ] * scale;
							vertex.z = srcVertices[ v + 2 ] * scale;

							dstVertices.push( vertex );

						}

					}

				}

				if ( json.morphColors !== undefined && json.morphColors.length > 0 ) {

					console.warn( 'THREE.JSONLoader: "morphColors" no longer supported. Using them as face colors.' );

					var faces = geometry.faces;
					var morphColors = json.morphColors[ 0 ].colors;

					for ( var i = 0, l = faces.length; i < l; i ++ ) {

						faces[ i ].color.fromArray( morphColors, i * 3 );

					}

				}

			}

			function parseAnimations( json, geometry ) {

				var outputAnimations = [];

				// parse old style Bone/Hierarchy animations
				var animations = [];

				if ( json.animation !== undefined ) {

					animations.push( json.animation );

				}

				if ( json.animations !== undefined ) {

					if ( json.animations.length ) {

						animations = animations.concat( json.animations );

					} else {

						animations.push( json.animations );

					}

				}

				for ( var i = 0; i < animations.length; i ++ ) {

					var clip = AnimationClip.parseAnimation( animations[ i ], geometry.bones );
					if ( clip ) outputAnimations.push( clip );

				}

				// parse implicit morph animations
				if ( geometry.morphTargets ) {

					// TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary.
					var morphAnimationClips = AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );
					outputAnimations = outputAnimations.concat( morphAnimationClips );

				}

				if ( outputAnimations.length > 0 ) geometry.animations = outputAnimations;

			}

			return function parse( json, texturePath ) {

				if ( json.data !== undefined ) {

					// Geometry 4.0 spec
					json = json.data;

				}

				if ( json.scale !== undefined ) {

					json.scale = 1.0 / json.scale;

				} else {

					json.scale = 1.0;

				}

				var geometry = new Geometry();

				parseModel( json, geometry );
				parseSkin( json, geometry );
				parseMorphing( json, geometry );
				parseAnimations( json, geometry );

				geometry.computeFaceNormals();
				geometry.computeBoundingSphere();

				if ( json.materials === undefined || json.materials.length === 0 ) {

					return { geometry: geometry };

				} else {

					var materials = Loader.prototype.initMaterials( json.materials, texturePath, this.crossOrigin );

					return { geometry: geometry, materials: materials };

				}

			};

		} )()

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function ObjectLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
		this.texturePath = '';

	}

	Object.assign( ObjectLoader.prototype, {

		crossOrigin: 'anonymous',

		load: function ( url, onLoad, onProgress, onError ) {

			if ( this.texturePath === '' ) {

				this.texturePath = url.substring( 0, url.lastIndexOf( '/' ) + 1 );

			}

			var scope = this;

			var loader = new FileLoader( scope.manager );
			loader.load( url, function ( text ) {

				var json = null;

				try {

					json = JSON.parse( text );

				} catch ( error ) {

					if ( onError !== undefined ) onError( error );

					console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message );

					return;

				}

				var metadata = json.metadata;

				if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {

					console.error( 'THREE.ObjectLoader: Can\'t load ' + url + '. Use THREE.JSONLoader instead.' );
					return;

				}

				scope.parse( json, onLoad );

			}, onProgress, onError );

		},

		setTexturePath: function ( value ) {

			this.texturePath = value;
			return this;

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		parse: function ( json, onLoad ) {

			var shapes = this.parseShape( json.shapes );
			var geometries = this.parseGeometries( json.geometries, shapes );

			var images = this.parseImages( json.images, function () {

				if ( onLoad !== undefined ) onLoad( object );

			} );

			var textures = this.parseTextures( json.textures, images );
			var materials = this.parseMaterials( json.materials, textures );

			var object = this.parseObject( json.object, geometries, materials );

			if ( json.animations ) {

				object.animations = this.parseAnimations( json.animations );

			}

			if ( json.images === undefined || json.images.length === 0 ) {

				if ( onLoad !== undefined ) onLoad( object );

			}

			return object;

		},

		parseShape: function ( json ) {

			var shapes = {};

			if ( json !== undefined ) {

				for ( var i = 0, l = json.length; i < l; i ++ ) {

					var shape = new Shape().fromJSON( json[ i ] );

					shapes[ shape.uuid ] = shape;

				}

			}

			return shapes;

		},

		parseGeometries: function ( json, shapes ) {

			var geometries = {};

			if ( json !== undefined ) {

				var geometryLoader = new JSONLoader();
				var bufferGeometryLoader = new BufferGeometryLoader();

				for ( var i = 0, l = json.length; i < l; i ++ ) {

					var geometry;
					var data = json[ i ];

					switch ( data.type ) {

						case 'PlaneGeometry':
						case 'PlaneBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.width,
								data.height,
								data.widthSegments,
								data.heightSegments
							);

							break;

						case 'BoxGeometry':
						case 'BoxBufferGeometry':
						case 'CubeGeometry': // backwards compatible

							geometry = new Geometries[ data.type ](
								data.width,
								data.height,
								data.depth,
								data.widthSegments,
								data.heightSegments,
								data.depthSegments
							);

							break;

						case 'CircleGeometry':
						case 'CircleBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.segments,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'CylinderGeometry':
						case 'CylinderBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radiusTop,
								data.radiusBottom,
								data.height,
								data.radialSegments,
								data.heightSegments,
								data.openEnded,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'ConeGeometry':
						case 'ConeBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.height,
								data.radialSegments,
								data.heightSegments,
								data.openEnded,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'SphereGeometry':
						case 'SphereBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.widthSegments,
								data.heightSegments,
								data.phiStart,
								data.phiLength,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'DodecahedronGeometry':
						case 'DodecahedronBufferGeometry':
						case 'IcosahedronGeometry':
						case 'IcosahedronBufferGeometry':
						case 'OctahedronGeometry':
						case 'OctahedronBufferGeometry':
						case 'TetrahedronGeometry':
						case 'TetrahedronBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.detail
							);

							break;

						case 'RingGeometry':
						case 'RingBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.innerRadius,
								data.outerRadius,
								data.thetaSegments,
								data.phiSegments,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'TorusGeometry':
						case 'TorusBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.tube,
								data.radialSegments,
								data.tubularSegments,
								data.arc
							);

							break;

						case 'TorusKnotGeometry':
						case 'TorusKnotBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.tube,
								data.tubularSegments,
								data.radialSegments,
								data.p,
								data.q
							);

							break;

						case 'LatheGeometry':
						case 'LatheBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.points,
								data.segments,
								data.phiStart,
								data.phiLength
							);

							break;

						case 'PolyhedronGeometry':
						case 'PolyhedronBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.vertices,
								data.indices,
								data.radius,
								data.details
							);

							break;

						case 'ShapeGeometry':
						case 'ShapeBufferGeometry':

							var geometryShapes = [];

							for ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {

								var shape = shapes[ data.shapes[ j ] ];

								geometryShapes.push( shape );

							}

							geometry = new Geometries[ data.type ](
								geometryShapes,
								data.curveSegments
							);

							break;


						case 'ExtrudeGeometry':
						case 'ExtrudeBufferGeometry':

							var geometryShapes = [];

							for ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {

								var shape = shapes[ data.shapes[ j ] ];

								geometryShapes.push( shape );

							}

							var extrudePath = data.options.extrudePath;

							if ( extrudePath !== undefined ) {

								data.options.extrudePath = new Curves[ extrudePath.type ]().fromJSON( extrudePath );

							}

							geometry = new Geometries[ data.type ](
								geometryShapes,
								data.options
							);

							break;

						case 'BufferGeometry':

							geometry = bufferGeometryLoader.parse( data );

							break;

						case 'Geometry':

							geometry = geometryLoader.parse( data, this.texturePath ).geometry;

							break;

						default:

							console.warn( 'THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"' );

							continue;

					}

					geometry.uuid = data.uuid;

					if ( data.name !== undefined ) geometry.name = data.name;
					if ( geometry.isBufferGeometry === true && data.userData !== undefined ) geometry.userData = data.userData;

					geometries[ data.uuid ] = geometry;

				}

			}

			return geometries;

		},

		parseMaterials: function ( json, textures ) {

			var materials = {};

			if ( json !== undefined ) {

				var loader = new MaterialLoader();
				loader.setTextures( textures );

				for ( var i = 0, l = json.length; i < l; i ++ ) {

					var data = json[ i ];

					if ( data.type === 'MultiMaterial' ) {

						// Deprecated

						var array = [];

						for ( var j = 0; j < data.materials.length; j ++ ) {

							array.push( loader.parse( data.materials[ j ] ) );

						}

						materials[ data.uuid ] = array;

					} else {

						materials[ data.uuid ] = loader.parse( data );

					}

				}

			}

			return materials;

		},

		parseAnimations: function ( json ) {

			var animations = [];

			for ( var i = 0; i < json.length; i ++ ) {

				var data = json[ i ];

				var clip = AnimationClip.parse( data );

				if ( data.uuid !== undefined ) clip.uuid = data.uuid;

				animations.push( clip );

			}

			return animations;

		},

		parseImages: function ( json, onLoad ) {

			var scope = this;
			var images = {};

			function loadImage( url ) {

				scope.manager.itemStart( url );

				return loader.load( url, function () {

					scope.manager.itemEnd( url );

				}, undefined, function () {

					scope.manager.itemEnd( url );
					scope.manager.itemError( url );

				} );

			}

			if ( json !== undefined && json.length > 0 ) {

				var manager = new LoadingManager( onLoad );

				var loader = new ImageLoader( manager );
				loader.setCrossOrigin( this.crossOrigin );

				for ( var i = 0, il = json.length; i < il; i ++ ) {

					var image = json[ i ];
					var url = image.url;

					if ( Array.isArray( url ) ) {

						// load array of images e.g CubeTexture

						images[ image.uuid ] = [];

						for ( var j = 0, jl = url.length; j < jl; j ++ ) {

							var currentUrl = url[ j ];

							var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( currentUrl ) ? currentUrl : scope.texturePath + currentUrl;

							images[ image.uuid ].push( loadImage( path ) );

						}

					} else {

						// load single image

						var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( image.url ) ? image.url : scope.texturePath + image.url;

						images[ image.uuid ] = loadImage( path );

					}

				}

			}

			return images;

		},

		parseTextures: function ( json, images ) {

			function parseConstant( value, type ) {

				if ( typeof value === 'number' ) return value;

				console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );

				return type[ value ];

			}

			var textures = {};

			if ( json !== undefined ) {

				for ( var i = 0, l = json.length; i < l; i ++ ) {

					var data = json[ i ];

					if ( data.image === undefined ) {

						console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid );

					}

					if ( images[ data.image ] === undefined ) {

						console.warn( 'THREE.ObjectLoader: Undefined image', data.image );

					}

					var texture;

					if ( Array.isArray( images[ data.image ] ) ) {

						texture = new CubeTexture( images[ data.image ] );

					} else {

						texture = new Texture( images[ data.image ] );

					}

					texture.needsUpdate = true;

					texture.uuid = data.uuid;

					if ( data.name !== undefined ) texture.name = data.name;

					if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );

					if ( data.offset !== undefined ) texture.offset.fromArray( data.offset );
					if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );
					if ( data.center !== undefined ) texture.center.fromArray( data.center );
					if ( data.rotation !== undefined ) texture.rotation = data.rotation;

					if ( data.wrap !== undefined ) {

						texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );
						texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );

					}

					if ( data.format !== undefined ) texture.format = data.format;

					if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );
					if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );
					if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;

					if ( data.flipY !== undefined ) texture.flipY = data.flipY;

					textures[ data.uuid ] = texture;

				}

			}

			return textures;

		},

		parseObject: function ( data, geometries, materials ) {

			var object;

			function getGeometry( name ) {

				if ( geometries[ name ] === undefined ) {

					console.warn( 'THREE.ObjectLoader: Undefined geometry', name );

				}

				return geometries[ name ];

			}

			function getMaterial( name ) {

				if ( name === undefined ) return undefined;

				if ( Array.isArray( name ) ) {

					var array = [];

					for ( var i = 0, l = name.length; i < l; i ++ ) {

						var uuid = name[ i ];

						if ( materials[ uuid ] === undefined ) {

							console.warn( 'THREE.ObjectLoader: Undefined material', uuid );

						}

						array.push( materials[ uuid ] );

					}

					return array;

				}

				if ( materials[ name ] === undefined ) {

					console.warn( 'THREE.ObjectLoader: Undefined material', name );

				}

				return materials[ name ];

			}

			switch ( data.type ) {

				case 'Scene':

					object = new Scene();

					if ( data.background !== undefined ) {

						if ( Number.isInteger( data.background ) ) {

							object.background = new Color( data.background );

						}

					}

					if ( data.fog !== undefined ) {

						if ( data.fog.type === 'Fog' ) {

							object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );

						} else if ( data.fog.type === 'FogExp2' ) {

							object.fog = new FogExp2( data.fog.color, data.fog.density );

						}

					}

					break;

				case 'PerspectiveCamera':

					object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );

					if ( data.focus !== undefined ) object.focus = data.focus;
					if ( data.zoom !== undefined ) object.zoom = data.zoom;
					if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;
					if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;
					if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );

					break;

				case 'OrthographicCamera':

					object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );

					if ( data.zoom !== undefined ) object.zoom = data.zoom;
					if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );

					break;

				case 'AmbientLight':

					object = new AmbientLight( data.color, data.intensity );

					break;

				case 'DirectionalLight':

					object = new DirectionalLight( data.color, data.intensity );

					break;

				case 'PointLight':

					object = new PointLight( data.color, data.intensity, data.distance, data.decay );

					break;

				case 'RectAreaLight':

					object = new RectAreaLight( data.color, data.intensity, data.width, data.height );

					break;

				case 'SpotLight':

					object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );

					break;

				case 'HemisphereLight':

					object = new HemisphereLight( data.color, data.groundColor, data.intensity );

					break;

				case 'SkinnedMesh':

					console.warn( 'THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.' );

				case 'Mesh':

					var geometry = getGeometry( data.geometry );
					var material = getMaterial( data.material );

					if ( geometry.bones && geometry.bones.length > 0 ) {

						object = new SkinnedMesh( geometry, material );

					} else {

						object = new Mesh( geometry, material );

					}

					break;

				case 'LOD':

					object = new LOD();

					break;

				case 'Line':

					object = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );

					break;

				case 'LineLoop':

					object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );

					break;

				case 'LineSegments':

					object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );

					break;

				case 'PointCloud':
				case 'Points':

					object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );

					break;

				case 'Sprite':

					object = new Sprite( getMaterial( data.material ) );

					break;

				case 'Group':

					object = new Group();

					break;

				default:

					object = new Object3D();

			}

			object.uuid = data.uuid;

			if ( data.name !== undefined ) object.name = data.name;

			if ( data.matrix !== undefined ) {

				object.matrix.fromArray( data.matrix );

				if ( data.matrixAutoUpdate !== undefined ) object.matrixAutoUpdate = data.matrixAutoUpdate;
				if ( object.matrixAutoUpdate ) object.matrix.decompose( object.position, object.quaternion, object.scale );

			} else {

				if ( data.position !== undefined ) object.position.fromArray( data.position );
				if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );
				if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );
				if ( data.scale !== undefined ) object.scale.fromArray( data.scale );

			}

			if ( data.castShadow !== undefined ) object.castShadow = data.castShadow;
			if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;

			if ( data.shadow ) {

				if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;
				if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;
				if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );
				if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );

			}

			if ( data.visible !== undefined ) object.visible = data.visible;
			if ( data.frustumCulled !== undefined ) object.frustumCulled = data.frustumCulled;
			if ( data.renderOrder !== undefined ) object.renderOrder = data.renderOrder;
			if ( data.userData !== undefined ) object.userData = data.userData;
			if ( data.layers !== undefined ) object.layers.mask = data.layers;

			if ( data.children !== undefined ) {

				var children = data.children;

				for ( var i = 0; i < children.length; i ++ ) {

					object.add( this.parseObject( children[ i ], geometries, materials ) );

				}

			}

			if ( data.type === 'LOD' ) {

				var levels = data.levels;

				for ( var l = 0; l < levels.length; l ++ ) {

					var level = levels[ l ];
					var child = object.getObjectByProperty( 'uuid', level.object );

					if ( child !== undefined ) {

						object.addLevel( child, level.distance );

					}

				}

			}

			return object;

		}

	} );

	var TEXTURE_MAPPING = {
		UVMapping: UVMapping,
		CubeReflectionMapping: CubeReflectionMapping,
		CubeRefractionMapping: CubeRefractionMapping,
		EquirectangularReflectionMapping: EquirectangularReflectionMapping,
		EquirectangularRefractionMapping: EquirectangularRefractionMapping,
		SphericalReflectionMapping: SphericalReflectionMapping,
		CubeUVReflectionMapping: CubeUVReflectionMapping,
		CubeUVRefractionMapping: CubeUVRefractionMapping
	};

	var TEXTURE_WRAPPING = {
		RepeatWrapping: RepeatWrapping,
		ClampToEdgeWrapping: ClampToEdgeWrapping,
		MirroredRepeatWrapping: MirroredRepeatWrapping
	};

	var TEXTURE_FILTER = {
		NearestFilter: NearestFilter,
		NearestMipMapNearestFilter: NearestMipMapNearestFilter,
		NearestMipMapLinearFilter: NearestMipMapLinearFilter,
		LinearFilter: LinearFilter,
		LinearMipMapNearestFilter: LinearMipMapNearestFilter,
		LinearMipMapLinearFilter: LinearMipMapLinearFilter
	};

	/**
	 * @author thespite / http://clicktorelease.com/
	 */


	function ImageBitmapLoader( manager ) {

		if ( typeof createImageBitmap === 'undefined' ) {

			console.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' );

		}

		if ( typeof fetch === 'undefined' ) {

			console.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' );

		}

		this.manager = manager !== undefined ? manager : DefaultLoadingManager;
		this.options = undefined;

	}

	ImageBitmapLoader.prototype = {

		constructor: ImageBitmapLoader,

		setOptions: function setOptions( options ) {

			this.options = options;

			return this;

		},

		load: function ( url, onLoad, onProgress, onError ) {

			if ( url === undefined ) url = '';

			if ( this.path !== undefined ) url = this.path + url;

			url = this.manager.resolveURL( url );

			var scope = this;

			var cached = Cache.get( url );

			if ( cached !== undefined ) {

				scope.manager.itemStart( url );

				setTimeout( function () {

					if ( onLoad ) onLoad( cached );

					scope.manager.itemEnd( url );

				}, 0 );

				return cached;

			}

			fetch( url ).then( function ( res ) {

				return res.blob();

			} ).then( function ( blob ) {

				return createImageBitmap( blob, scope.options );

			} ).then( function ( imageBitmap ) {

				Cache.add( url, imageBitmap );

				if ( onLoad ) onLoad( imageBitmap );

				scope.manager.itemEnd( url );

			} ).catch( function ( e ) {

				if ( onError ) onError( e );

				scope.manager.itemEnd( url );
				scope.manager.itemError( url );

			} );

		},

		setCrossOrigin: function ( /* value */ ) {

			return this;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	};

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * minimal class for proxing functions to Path. Replaces old "extractSubpaths()"
	 **/

	function ShapePath() {

		this.type = 'ShapePath';

		this.color = new Color();

		this.subPaths = [];
		this.currentPath = null;

	}

	Object.assign( ShapePath.prototype, {

		moveTo: function ( x, y ) {

			this.currentPath = new Path();
			this.subPaths.push( this.currentPath );
			this.currentPath.moveTo( x, y );

		},

		lineTo: function ( x, y ) {

			this.currentPath.lineTo( x, y );

		},

		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {

			this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );

		},

		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {

			this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );

		},

		splineThru: function ( pts ) {

			this.currentPath.splineThru( pts );

		},

		toShapes: function ( isCCW, noHoles ) {

			function toShapesNoHoles( inSubpaths ) {

				var shapes = [];

				for ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {

					var tmpPath = inSubpaths[ i ];

					var tmpShape = new Shape();
					tmpShape.curves = tmpPath.curves;

					shapes.push( tmpShape );

				}

				return shapes;

			}

			function isPointInsidePolygon( inPt, inPolygon ) {

				var polyLen = inPolygon.length;

				// inPt on polygon contour => immediate success    or
				// toggling of inside/outside at every single! intersection point of an edge
				//  with the horizontal line through inPt, left of inPt
				//  not counting lowerY endpoints of edges and whole edges on that line
				var inside = false;
				for ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {

					var edgeLowPt = inPolygon[ p ];
					var edgeHighPt = inPolygon[ q ];

					var edgeDx = edgeHighPt.x - edgeLowPt.x;
					var edgeDy = edgeHighPt.y - edgeLowPt.y;

					if ( Math.abs( edgeDy ) > Number.EPSILON ) {

						// not parallel
						if ( edgeDy < 0 ) {

							edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;
							edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;

						}
						if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) 		continue;

						if ( inPt.y === edgeLowPt.y ) {

							if ( inPt.x === edgeLowPt.x )		return	true;		// inPt is on contour ?
							// continue;				// no intersection or edgeLowPt => doesn't count !!!

						} else {

							var perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );
							if ( perpEdge === 0 )				return	true;		// inPt is on contour ?
							if ( perpEdge < 0 ) 				continue;
							inside = ! inside;		// true intersection left of inPt

						}

					} else {

						// parallel or collinear
						if ( inPt.y !== edgeLowPt.y ) 		continue;			// parallel
						// edge lies on the same horizontal line as inPt
						if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||
							 ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )		return	true;	// inPt: Point on contour !
						// continue;

					}

				}

				return	inside;

			}

			var isClockWise = ShapeUtils.isClockWise;

			var subPaths = this.subPaths;
			if ( subPaths.length === 0 ){
			    console.log('no subPaths found', subPaths.length, subPaths);
			    return [];
            }

			if ( noHoles === true )	return	toShapesNoHoles( subPaths );


			var solid, tmpPath, tmpShape, shapes = [];

			if ( subPaths.length === 1 ) {

				tmpPath = subPaths[ 0 ];
				tmpShape = new Shape();
				tmpShape.curves = tmpPath.curves;
				shapes.push( tmpShape );
				console.log('return 1 shape', subPaths.length, subPaths);
				return shapes;

			}

			var holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );
			holesFirst = isCCW ? ! holesFirst : holesFirst;

			// console.log("Holes first", holesFirst);

			var betterShapeHoles = [];
			var newShapes = [];
			var newShapeHoles = [];
			var mainIdx = 0;
			var tmpPoints;

			newShapes[ mainIdx ] = undefined;
			newShapeHoles[ mainIdx ] = [];

			for ( var i = 0, l = subPaths.length; i < l; i ++ ) {

				tmpPath = subPaths[ i ];
				tmpPoints = tmpPath.getPoints();
				solid = isClockWise( tmpPoints );
				solid = isCCW ? ! solid : solid;

				if ( solid ) {

					if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )	mainIdx ++;

					newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };
					newShapes[ mainIdx ].s.curves = tmpPath.curves;

					if ( holesFirst )	mainIdx ++;
					newShapeHoles[ mainIdx ] = [];

					//console.log('cw', i);

				} else {

					newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );

					//console.log('ccw', i);

				}

			}

			// only Holes? -> probably all Shapes with wrong orientation
			if ( ! newShapes[ 0 ] )	return	toShapesNoHoles( subPaths );


			if ( newShapes.length > 1 ) {

				var ambiguous = false;
				var toChange = [];

				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

					betterShapeHoles[ sIdx ] = [];

				}

				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

					var sho = newShapeHoles[ sIdx ];

					for ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {

						var ho = sho[ hIdx ];
						var hole_unassigned = true;

						for ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {

							if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {

								if ( sIdx !== s2Idx )	toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );
								if ( hole_unassigned ) {

									hole_unassigned = false;
									betterShapeHoles[ s2Idx ].push( ho );

								} else {

									ambiguous = true;

								}

							}

						}
						if ( hole_unassigned ) {

							betterShapeHoles[ sIdx ].push( ho );

						}

					}

				}
				// console.log("ambiguous: ", ambiguous);
				if ( toChange.length > 0 ) {

					// console.log("to change: ", toChange);
					if ( ! ambiguous )	newShapeHoles = betterShapeHoles;

				}

			}

			var tmpHoles;

			for ( var i = 0, il = newShapes.length; i < il; i ++ ) {

				tmpShape = newShapes[ i ].s;
				shapes.push( tmpShape );
				tmpHoles = newShapeHoles[ i ];

				for ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {

					tmpShape.holes.push( tmpHoles[ j ].h );

				}

			}

			//console.log("shape", shapes);

			return shapes;

		}

	} );

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * @author mrdoob / http://mrdoob.com/
	 */


	function Font( data ) {

		this.type = 'Font';

		this.data = data;

	}

	Object.assign( Font.prototype, {

		isFont: true,

		generateShapes: function ( text, size ) {

			if ( size === undefined ) size = 100;

			var shapes = [];
			var paths = createPaths( text, size, this.data );

			for ( var p = 0, pl = paths.length; p < pl; p ++ ) {

				Array.prototype.push.apply( shapes, paths[ p ].toShapes() );

			}

			return shapes;

		}

	} );

	function createPaths( text, size, data ) {

		var chars = Array.from ? Array.from( text ) : String( text ).split( '' ); // see #13988
		var scale = size / data.resolution;
		var line_height = ( data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness ) * scale;

		var paths = [];

		var offsetX = 0, offsetY = 0;

		for ( var i = 0; i < chars.length; i ++ ) {

			var char = chars[ i ];

			if ( char === '\n' ) {

				offsetX = 0;
				offsetY -= line_height;

			} else {

				var ret = createPath( char, scale, offsetX, offsetY, data );
				offsetX += ret.offsetX;
				paths.push( ret.path );

			}

		}

		return paths;

	}

	function createPath( char, scale, offsetX, offsetY, data ) {

		var glyph = data.glyphs[ char ] || data.glyphs[ '?' ];

		if ( ! glyph ) return;

		var path = new ShapePath();

		var x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2;

		if ( glyph.o ) {

			var outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) );

			for ( var i = 0, l = outline.length; i < l; ) {

				var action = outline[ i ++ ];

				switch ( action ) {

					case 'm': // moveTo

						x = outline[ i ++ ] * scale + offsetX;
						y = outline[ i ++ ] * scale + offsetY;

						path.moveTo( x, y );

						break;

					case 'l': // lineTo

						x = outline[ i ++ ] * scale + offsetX;
						y = outline[ i ++ ] * scale + offsetY;

						path.lineTo( x, y );

						break;

					case 'q': // quadraticCurveTo

						cpx = outline[ i ++ ] * scale + offsetX;
						cpy = outline[ i ++ ] * scale + offsetY;
						cpx1 = outline[ i ++ ] * scale + offsetX;
						cpy1 = outline[ i ++ ] * scale + offsetY;

						path.quadraticCurveTo( cpx1, cpy1, cpx, cpy );

						break;

					case 'b': // bezierCurveTo

						cpx = outline[ i ++ ] * scale + offsetX;
						cpy = outline[ i ++ ] * scale + offsetY;
						cpx1 = outline[ i ++ ] * scale + offsetX;
						cpy1 = outline[ i ++ ] * scale + offsetY;
						cpx2 = outline[ i ++ ] * scale + offsetX;
						cpy2 = outline[ i ++ ] * scale + offsetY;

						path.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy );

						break;

				}

			}

		}

		return { offsetX: glyph.ha * scale, path: path };

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function FontLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( FontLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var loader = new FileLoader( this.manager );
			loader.setPath( this.path );
			loader.load( url, function ( text ) {

				var json;

				try {

					json = JSON.parse( text );

				} catch ( e ) {

					console.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' );
					json = JSON.parse( text.substring( 65, text.length - 2 ) );

				}

				var font = scope.parse( json );

				if ( onLoad ) onLoad( font );

			}, onProgress, onError );

		},

		parse: function ( json ) {

			return new Font( json );

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	var context;

	var AudioContext = {

		getContext: function () {

			if ( context === undefined ) {

				context = new ( window.AudioContext || window.webkitAudioContext )();

			}

			return context;

		},

		setContext: function ( value ) {

			context = value;

		}

	};

	/**
	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
	 */

	function AudioLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( AudioLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var loader = new FileLoader( this.manager );
			loader.setResponseType( 'arraybuffer' );
			loader.load( url, function ( buffer ) {

				// Create a copy of the buffer. The `decodeAudioData` method
				// detaches the buffer when complete, preventing reuse.
				var bufferCopy = buffer.slice( 0 );

				var context = AudioContext.getContext();
				context.decodeAudioData( bufferCopy, function ( audioBuffer ) {

					onLoad( audioBuffer );

				} );

			}, onProgress, onError );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function StereoCamera() {

		this.type = 'StereoCamera';

		this.aspect = 1;

		this.eyeSep = 0.064;

		this.cameraL = new PerspectiveCamera();
		this.cameraL.layers.enable( 1 );
		this.cameraL.matrixAutoUpdate = false;

		this.cameraR = new PerspectiveCamera();
		this.cameraR.layers.enable( 2 );
		this.cameraR.matrixAutoUpdate = false;

	}

	Object.assign( StereoCamera.prototype, {

		update: ( function () {

			var instance, focus, fov, aspect, near, far, zoom, eyeSep;

			var eyeRight = new Matrix4();
			var eyeLeft = new Matrix4();

			return function update( camera ) {

				var needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov ||
													aspect !== camera.aspect * this.aspect || near !== camera.near ||
													far !== camera.far || zoom !== camera.zoom || eyeSep !== this.eyeSep;

				if ( needsUpdate ) {

					instance = this;
					focus = camera.focus;
					fov = camera.fov;
					aspect = camera.aspect * this.aspect;
					near = camera.near;
					far = camera.far;
					zoom = camera.zoom;

					// Off-axis stereoscopic effect based on
					// http://paulbourke.net/stereographics/stereorender/

					var projectionMatrix = camera.projectionMatrix.clone();
					eyeSep = this.eyeSep / 2;
					var eyeSepOnProjection = eyeSep * near / focus;
					var ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom;
					var xmin, xmax;

					// translate xOffset

					eyeLeft.elements[ 12 ] = - eyeSep;
					eyeRight.elements[ 12 ] = eyeSep;

					// for left eye

					xmin = - ymax * aspect + eyeSepOnProjection;
					xmax = ymax * aspect + eyeSepOnProjection;

					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

					this.cameraL.projectionMatrix.copy( projectionMatrix );

					// for right eye

					xmin = - ymax * aspect - eyeSepOnProjection;
					xmax = ymax * aspect - eyeSepOnProjection;

					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

					this.cameraR.projectionMatrix.copy( projectionMatrix );

				}

				this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft );
				this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight );

			};

		} )()

	} );

	/**
	 * Camera for rendering cube maps
	 *	- renders scene into axis-aligned cube
	 *
	 * @author alteredq / http://alteredqualia.com/
	 */

	function CubeCamera( near, far, cubeResolution ) {

		Object3D.call( this );

		this.type = 'CubeCamera';

		var fov = 90, aspect = 1;

		var cameraPX = new PerspectiveCamera( fov, aspect, near, far );
		cameraPX.up.set( 0, - 1, 0 );
		cameraPX.lookAt( new Vector3( 1, 0, 0 ) );
		this.add( cameraPX );

		var cameraNX = new PerspectiveCamera( fov, aspect, near, far );
		cameraNX.up.set( 0, - 1, 0 );
		cameraNX.lookAt( new Vector3( - 1, 0, 0 ) );
		this.add( cameraNX );

		var cameraPY = new PerspectiveCamera( fov, aspect, near, far );
		cameraPY.up.set( 0, 0, 1 );
		cameraPY.lookAt( new Vector3( 0, 1, 0 ) );
		this.add( cameraPY );

		var cameraNY = new PerspectiveCamera( fov, aspect, near, far );
		cameraNY.up.set( 0, 0, - 1 );
		cameraNY.lookAt( new Vector3( 0, - 1, 0 ) );
		this.add( cameraNY );

		var cameraPZ = new PerspectiveCamera( fov, aspect, near, far );
		cameraPZ.up.set( 0, - 1, 0 );
		cameraPZ.lookAt( new Vector3( 0, 0, 1 ) );
		this.add( cameraPZ );

		var cameraNZ = new PerspectiveCamera( fov, aspect, near, far );
		cameraNZ.up.set( 0, - 1, 0 );
		cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );
		this.add( cameraNZ );

		var options = { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter };

		this.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options );
		this.renderTarget.texture.name = "CubeCamera";

		this.update = function ( renderer, scene ) {

			if ( this.parent === null ) this.updateMatrixWorld();

			var renderTarget = this.renderTarget;
			var generateMipmaps = renderTarget.texture.generateMipmaps;

			renderTarget.texture.generateMipmaps = false;

			renderTarget.activeCubeFace = 0;
			renderer.render( scene, cameraPX, renderTarget );

			renderTarget.activeCubeFace = 1;
			renderer.render( scene, cameraNX, renderTarget );

			renderTarget.activeCubeFace = 2;
			renderer.render( scene, cameraPY, renderTarget );

			renderTarget.activeCubeFace = 3;
			renderer.render( scene, cameraNY, renderTarget );

			renderTarget.activeCubeFace = 4;
			renderer.render( scene, cameraPZ, renderTarget );

			renderTarget.texture.generateMipmaps = generateMipmaps;

			renderTarget.activeCubeFace = 5;
			renderer.render( scene, cameraNZ, renderTarget );

			renderer.setRenderTarget( null );

		};

		this.clear = function ( renderer, color, depth, stencil ) {

			var renderTarget = this.renderTarget;

			for ( var i = 0; i < 6; i ++ ) {

				renderTarget.activeCubeFace = i;
				renderer.setRenderTarget( renderTarget );

				renderer.clear( color, depth, stencil );

			}

			renderer.setRenderTarget( null );

		};

	}

	CubeCamera.prototype = Object.create( Object3D.prototype );
	CubeCamera.prototype.constructor = CubeCamera;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function AudioListener() {

		Object3D.call( this );

		this.type = 'AudioListener';

		this.context = AudioContext.getContext();

		this.gain = this.context.createGain();
		this.gain.connect( this.context.destination );

		this.filter = null;

	}

	AudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: AudioListener,

		getInput: function () {

			return this.gain;

		},

		removeFilter: function ( ) {

			if ( this.filter !== null ) {

				this.gain.disconnect( this.filter );
				this.filter.disconnect( this.context.destination );
				this.gain.connect( this.context.destination );
				this.filter = null;

			}

			return this;

		},

		getFilter: function () {

			return this.filter;

		},

		setFilter: function ( value ) {

			if ( this.filter !== null ) {

				this.gain.disconnect( this.filter );
				this.filter.disconnect( this.context.destination );

			} else {

				this.gain.disconnect( this.context.destination );

			}

			this.filter = value;
			this.gain.connect( this.filter );
			this.filter.connect( this.context.destination );

			return this;

		},

		getMasterVolume: function () {

			return this.gain.gain.value;

		},

		setMasterVolume: function ( value ) {

			this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );

			return this;

		},

		updateMatrixWorld: ( function () {

			var position = new Vector3();
			var quaternion = new Quaternion();
			var scale = new Vector3();

			var orientation = new Vector3();

			return function updateMatrixWorld( force ) {

				Object3D.prototype.updateMatrixWorld.call( this, force );

				var listener = this.context.listener;
				var up = this.up;

				this.matrixWorld.decompose( position, quaternion, scale );

				orientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );

				if ( listener.positionX ) {

					listener.positionX.setValueAtTime( position.x, this.context.currentTime );
					listener.positionY.setValueAtTime( position.y, this.context.currentTime );
					listener.positionZ.setValueAtTime( position.z, this.context.currentTime );
					listener.forwardX.setValueAtTime( orientation.x, this.context.currentTime );
					listener.forwardY.setValueAtTime( orientation.y, this.context.currentTime );
					listener.forwardZ.setValueAtTime( orientation.z, this.context.currentTime );
					listener.upX.setValueAtTime( up.x, this.context.currentTime );
					listener.upY.setValueAtTime( up.y, this.context.currentTime );
					listener.upZ.setValueAtTime( up.z, this.context.currentTime );

				} else {

					listener.setPosition( position.x, position.y, position.z );
					listener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );

				}

			};

		} )()

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
	 */

	function Audio( listener ) {

		Object3D.call( this );

		this.type = 'Audio';

		this.context = listener.context;

		this.gain = this.context.createGain();
		this.gain.connect( listener.getInput() );

		this.autoplay = false;

		this.buffer = null;
		this.loop = false;
		this.startTime = 0;
		this.offset = 0;
		this.playbackRate = 1;
		this.isPlaying = false;
		this.hasPlaybackControl = true;
		this.sourceType = 'empty';

		this.filters = [];

	}

	Audio.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Audio,

		getOutput: function () {

			return this.gain;

		},

		setNodeSource: function ( audioNode ) {

			this.hasPlaybackControl = false;
			this.sourceType = 'audioNode';
			this.source = audioNode;
			this.connect();

			return this;

		},

		setMediaElementSource: function ( mediaElement ) {

			this.hasPlaybackControl = false;
			this.sourceType = 'mediaNode';
			this.source = this.context.createMediaElementSource( mediaElement );
			this.connect();

			return this;

		},

		setBuffer: function ( audioBuffer ) {

			this.buffer = audioBuffer;
			this.sourceType = 'buffer';

			if ( this.autoplay ) this.play();

			return this;

		},

		play: function () {

			if ( this.isPlaying === true ) {

				console.warn( 'THREE.Audio: Audio is already playing.' );
				return;

			}

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			var source = this.context.createBufferSource();

			source.buffer = this.buffer;
			source.loop = this.loop;
			source.onended = this.onEnded.bind( this );
			source.playbackRate.setValueAtTime( this.playbackRate, this.startTime );
			this.startTime = this.context.currentTime;
			source.start( this.startTime, this.offset );

			this.isPlaying = true;

			this.source = source;

			return this.connect();

		},

		pause: function () {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			if ( this.isPlaying === true ) {

				this.source.stop();
				this.source.onended = null;
				this.offset += ( this.context.currentTime - this.startTime ) * this.playbackRate;
				this.isPlaying = false;

			}

			return this;

		},

		stop: function () {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			this.source.stop();
			this.source.onended = null;
			this.offset = 0;
			this.isPlaying = false;

			return this;

		},

		connect: function () {

			if ( this.filters.length > 0 ) {

				this.source.connect( this.filters[ 0 ] );

				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {

					this.filters[ i - 1 ].connect( this.filters[ i ] );

				}

				this.filters[ this.filters.length - 1 ].connect( this.getOutput() );

			} else {

				this.source.connect( this.getOutput() );

			}

			return this;

		},

		disconnect: function () {

			if ( this.filters.length > 0 ) {

				this.source.disconnect( this.filters[ 0 ] );

				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {

					this.filters[ i - 1 ].disconnect( this.filters[ i ] );

				}

				this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );

			} else {

				this.source.disconnect( this.getOutput() );

			}

			return this;

		},

		getFilters: function () {

			return this.filters;

		},

		setFilters: function ( value ) {

			if ( ! value ) value = [];

			if ( this.isPlaying === true ) {

				this.disconnect();
				this.filters = value;
				this.connect();

			} else {

				this.filters = value;

			}

			return this;

		},

		getFilter: function () {

			return this.getFilters()[ 0 ];

		},

		setFilter: function ( filter ) {

			return this.setFilters( filter ? [ filter ] : [] );

		},

		setPlaybackRate: function ( value ) {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			this.playbackRate = value;

			if ( this.isPlaying === true ) {

				this.source.playbackRate.setValueAtTime( this.playbackRate, this.context.currentTime );

			}

			return this;

		},

		getPlaybackRate: function () {

			return this.playbackRate;

		},

		onEnded: function () {

			this.isPlaying = false;

		},

		getLoop: function () {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return false;

			}

			return this.loop;

		},

		setLoop: function ( value ) {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			this.loop = value;

			if ( this.isPlaying === true ) {

				this.source.loop = this.loop;

			}

			return this;

		},

		getVolume: function () {

			return this.gain.gain.value;

		},

		setVolume: function ( value ) {

			this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function PositionalAudio( listener ) {

		Audio.call( this, listener );

		this.panner = this.context.createPanner();
		this.panner.connect( this.gain );

	}

	PositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {

		constructor: PositionalAudio,

		getOutput: function () {

			return this.panner;

		},

		getRefDistance: function () {

			return this.panner.refDistance;

		},

		setRefDistance: function ( value ) {

			this.panner.refDistance = value;

			return this;

		},

		getRolloffFactor: function () {

			return this.panner.rolloffFactor;

		},

		setRolloffFactor: function ( value ) {

			this.panner.rolloffFactor = value;

			return this;

		},

		getDistanceModel: function () {

			return this.panner.distanceModel;

		},

		setDistanceModel: function ( value ) {

			this.panner.distanceModel = value;

			return this;

		},

		getMaxDistance: function () {

			return this.panner.maxDistance;

		},

		setMaxDistance: function ( value ) {

			this.panner.maxDistance = value;

			return this;

		},

		setDirectionalCone: function ( coneInnerAngle, coneOuterAngle, coneOuterGain ) {

			this.panner.coneInnerAngle = coneInnerAngle;
			this.panner.coneOuterAngle = coneOuterAngle;
			this.panner.coneOuterGain = coneOuterGain;

			return this;

		},

		updateMatrixWorld: ( function () {

			var position = new Vector3();
			var quaternion = new Quaternion();
			var scale = new Vector3();

			var orientation = new Vector3();

			return function updateMatrixWorld( force ) {

				Object3D.prototype.updateMatrixWorld.call( this, force );

				var panner = this.panner;
				this.matrixWorld.decompose( position, quaternion, scale );

				orientation.set( 0, 0, 1 ).applyQuaternion( quaternion );

				panner.setPosition( position.x, position.y, position.z );
				panner.setOrientation( orientation.x, orientation.y, orientation.z );

			};

		} )()


	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function AudioAnalyser( audio, fftSize ) {

		this.analyser = audio.context.createAnalyser();
		this.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;

		this.data = new Uint8Array( this.analyser.frequencyBinCount );

		audio.getOutput().connect( this.analyser );

	}

	Object.assign( AudioAnalyser.prototype, {

		getFrequencyData: function () {

			this.analyser.getByteFrequencyData( this.data );

			return this.data;

		},

		getAverageFrequency: function () {

			var value = 0, data = this.getFrequencyData();

			for ( var i = 0; i < data.length; i ++ ) {

				value += data[ i ];

			}

			return value / data.length;

		}

	} );

	/**
	 *
	 * Buffered scene graph property that allows weighted accumulation.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function PropertyMixer( binding, typeName, valueSize ) {

		this.binding = binding;
		this.valueSize = valueSize;

		var bufferType = Float64Array,
			mixFunction;

		switch ( typeName ) {

			case 'quaternion':
				mixFunction = this._slerp;
				break;

			case 'string':
			case 'bool':
				bufferType = Array;
				mixFunction = this._select;
				break;

			default:
				mixFunction = this._lerp;

		}

		this.buffer = new bufferType( valueSize * 4 );
		// layout: [ incoming | accu0 | accu1 | orig ]
		//
		// interpolators can use .buffer as their .result
		// the data then goes to 'incoming'
		//
		// 'accu0' and 'accu1' are used frame-interleaved for
		// the cumulative result and are compared to detect
		// changes
		//
		// 'orig' stores the original state of the property

		this._mixBufferRegion = mixFunction;

		this.cumulativeWeight = 0;

		this.useCount = 0;
		this.referenceCount = 0;

	}

	Object.assign( PropertyMixer.prototype, {

		// accumulate data in the 'incoming' region into 'accu<i>'
		accumulate: function ( accuIndex, weight ) {

			// note: happily accumulating nothing when weight = 0, the caller knows
			// the weight and shouldn't have made the call in the first place

			var buffer = this.buffer,
				stride = this.valueSize,
				offset = accuIndex * stride + stride,

				currentWeight = this.cumulativeWeight;

			if ( currentWeight === 0 ) {

				// accuN := incoming * weight

				for ( var i = 0; i !== stride; ++ i ) {

					buffer[ offset + i ] = buffer[ i ];

				}

				currentWeight = weight;

			} else {

				// accuN := accuN + incoming * weight

				currentWeight += weight;
				var mix = weight / currentWeight;
				this._mixBufferRegion( buffer, offset, 0, mix, stride );

			}

			this.cumulativeWeight = currentWeight;

		},

		// apply the state of 'accu<i>' to the binding when accus differ
		apply: function ( accuIndex ) {

			var stride = this.valueSize,
				buffer = this.buffer,
				offset = accuIndex * stride + stride,

				weight = this.cumulativeWeight,

				binding = this.binding;

			this.cumulativeWeight = 0;

			if ( weight < 1 ) {

				// accuN := accuN + original * ( 1 - cumulativeWeight )

				var originalValueOffset = stride * 3;

				this._mixBufferRegion(
					buffer, offset, originalValueOffset, 1 - weight, stride );

			}

			for ( var i = stride, e = stride + stride; i !== e; ++ i ) {

				if ( buffer[ i ] !== buffer[ i + stride ] ) {

					// value has changed -> update scene graph

					binding.setValue( buffer, offset );
					break;

				}

			}

		},

		// remember the state of the bound property and copy it to both accus
		saveOriginalState: function () {

			var binding = this.binding;

			var buffer = this.buffer,
				stride = this.valueSize,

				originalValueOffset = stride * 3;

			binding.getValue( buffer, originalValueOffset );

			// accu[0..1] := orig -- initially detect changes against the original
			for ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {

				buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];

			}

			this.cumulativeWeight = 0;

		},

		// apply the state previously taken via 'saveOriginalState' to the binding
		restoreOriginalState: function () {

			var originalValueOffset = this.valueSize * 3;
			this.binding.setValue( this.buffer, originalValueOffset );

		},


		// mix functions

		_select: function ( buffer, dstOffset, srcOffset, t, stride ) {

			if ( t >= 0.5 ) {

				for ( var i = 0; i !== stride; ++ i ) {

					buffer[ dstOffset + i ] = buffer[ srcOffset + i ];

				}

			}

		},

		_slerp: function ( buffer, dstOffset, srcOffset, t ) {

			Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );

		},

		_lerp: function ( buffer, dstOffset, srcOffset, t, stride ) {

			var s = 1 - t;

			for ( var i = 0; i !== stride; ++ i ) {

				var j = dstOffset + i;

				buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;

			}

		}

	} );

	/**
	 *
	 * A reference to a real property in the scene graph.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	// Characters [].:/ are reserved for track binding syntax.
	var RESERVED_CHARS_RE = '\\[\\]\\.:\\/';

	function Composite( targetGroup, path, optionalParsedPath ) {

		var parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );

		this._targetGroup = targetGroup;
		this._bindings = targetGroup.subscribe_( path, parsedPath );

	}

	Object.assign( Composite.prototype, {

		getValue: function ( array, offset ) {

			this.bind(); // bind all binding

			var firstValidIndex = this._targetGroup.nCachedObjects_,
				binding = this._bindings[ firstValidIndex ];

			// and only call .getValue on the first
			if ( binding !== undefined ) binding.getValue( array, offset );

		},

		setValue: function ( array, offset ) {

			var bindings = this._bindings;

			for ( var i = this._targetGroup.nCachedObjects_,
					  n = bindings.length; i !== n; ++ i ) {

				bindings[ i ].setValue( array, offset );

			}

		},

		bind: function () {

			var bindings = this._bindings;

			for ( var i = this._targetGroup.nCachedObjects_,
					  n = bindings.length; i !== n; ++ i ) {

				bindings[ i ].bind();

			}

		},

		unbind: function () {

			var bindings = this._bindings;

			for ( var i = this._targetGroup.nCachedObjects_,
					  n = bindings.length; i !== n; ++ i ) {

				bindings[ i ].unbind();

			}

		}

	} );


	function PropertyBinding( rootNode, path, parsedPath ) {

		this.path = path;
		this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );

		this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;

		this.rootNode = rootNode;

	}

	Object.assign( PropertyBinding, {

		Composite: Composite,

		create: function ( root, path, parsedPath ) {

			if ( ! ( root && root.isAnimationObjectGroup ) ) {

				return new PropertyBinding( root, path, parsedPath );

			} else {

				return new PropertyBinding.Composite( root, path, parsedPath );

			}

		},

		/**
		 * Replaces spaces with underscores and removes unsupported characters from
		 * node names, to ensure compatibility with parseTrackName().
		 *
		 * @param  {string} name Node name to be sanitized.
		 * @return {string}
		 */
		sanitizeNodeName: ( function () {

			var reservedRe = new RegExp( '[' + RESERVED_CHARS_RE + ']', 'g' );

			return function sanitizeNodeName( name ) {

				return name.replace( /\s/g, '_' ).replace( reservedRe, '' );

			};

		}() ),

		parseTrackName: function () {

			// Attempts to allow node names from any language. ES5's `\w` regexp matches
			// only latin characters, and the unicode \p{L} is not yet supported. So
			// instead, we exclude reserved characters and match everything else.
			var wordChar = '[^' + RESERVED_CHARS_RE + ']';
			var wordCharOrDot = '[^' + RESERVED_CHARS_RE.replace( '\\.', '' ) + ']';

			// Parent directories, delimited by '/' or ':'. Currently unused, but must
			// be matched to parse the rest of the track name.
			var directoryRe = /((?:WC+[\/:])*)/.source.replace( 'WC', wordChar );

			// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
			var nodeRe = /(WCOD+)?/.source.replace( 'WCOD', wordCharOrDot );

			// Object on target node, and accessor. May not contain reserved
			// characters. Accessor may contain any character except closing bracket.
			var objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace( 'WC', wordChar );

			// Property and accessor. May not contain reserved characters. Accessor may
			// contain any non-bracket characters.
			var propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace( 'WC', wordChar );

			var trackRe = new RegExp( ''
				+ '^'
				+ directoryRe
				+ nodeRe
				+ objectRe
				+ propertyRe
				+ '$'
			);

			var supportedObjectNames = [ 'material', 'materials', 'bones' ];

			return function parseTrackName( trackName ) {

				var matches = trackRe.exec( trackName );

				if ( ! matches ) {

					throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );

				}

				var results = {
					// directoryName: matches[ 1 ], // (tschw) currently unused
					nodeName: matches[ 2 ],
					objectName: matches[ 3 ],
					objectIndex: matches[ 4 ],
					propertyName: matches[ 5 ], // required
					propertyIndex: matches[ 6 ]
				};

				var lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );

				if ( lastDot !== undefined && lastDot !== - 1 ) {

					var objectName = results.nodeName.substring( lastDot + 1 );

					// Object names must be checked against a whitelist. Otherwise, there
					// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
					// 'bar' could be the objectName, or part of a nodeName (which can
					// include '.' characters).
					if ( supportedObjectNames.indexOf( objectName ) !== - 1 ) {

						results.nodeName = results.nodeName.substring( 0, lastDot );
						results.objectName = objectName;

					}

				}

				if ( results.propertyName === null || results.propertyName.length === 0 ) {

					throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );

				}

				return results;

			};

		}(),

		findNode: function ( root, nodeName ) {

			if ( ! nodeName || nodeName === "" || nodeName === "root" || nodeName === "." || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {

				return root;

			}

			// search into skeleton bones.
			if ( root.skeleton ) {

				var bone = root.skeleton.getBoneByName( nodeName );

				if ( bone !== undefined ) {

					return bone;

				}

			}

			// search into node subtree.
			if ( root.children ) {

				var searchNodeSubtree = function ( children ) {

					for ( var i = 0; i < children.length; i ++ ) {

						var childNode = children[ i ];

						if ( childNode.name === nodeName || childNode.uuid === nodeName ) {

							return childNode;

						}

						var result = searchNodeSubtree( childNode.children );

						if ( result ) return result;

					}

					return null;

				};

				var subTreeNode = searchNodeSubtree( root.children );

				if ( subTreeNode ) {

					return subTreeNode;

				}

			}

			return null;

		}

	} );

	Object.assign( PropertyBinding.prototype, { // prototype, continued

		// these are used to "bind" a nonexistent property
		_getValue_unavailable: function () {},
		_setValue_unavailable: function () {},

		BindingType: {
			Direct: 0,
			EntireArray: 1,
			ArrayElement: 2,
			HasFromToArray: 3
		},

		Versioning: {
			None: 0,
			NeedsUpdate: 1,
			MatrixWorldNeedsUpdate: 2
		},

		GetterByBindingType: [

			function getValue_direct( buffer, offset ) {

				buffer[ offset ] = this.node[ this.propertyName ];

			},

			function getValue_array( buffer, offset ) {

				var source = this.resolvedProperty;

				for ( var i = 0, n = source.length; i !== n; ++ i ) {

					buffer[ offset ++ ] = source[ i ];

				}

			},

			function getValue_arrayElement( buffer, offset ) {

				buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];

			},

			function getValue_toArray( buffer, offset ) {

				this.resolvedProperty.toArray( buffer, offset );

			}

		],

		SetterByBindingTypeAndVersioning: [

			[
				// Direct

				function setValue_direct( buffer, offset ) {

					this.targetObject[ this.propertyName ] = buffer[ offset ];

				},

				function setValue_direct_setNeedsUpdate( buffer, offset ) {

					this.targetObject[ this.propertyName ] = buffer[ offset ];
					this.targetObject.needsUpdate = true;

				},

				function setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {

					this.targetObject[ this.propertyName ] = buffer[ offset ];
					this.targetObject.matrixWorldNeedsUpdate = true;

				}

			], [

				// EntireArray

				function setValue_array( buffer, offset ) {

					var dest = this.resolvedProperty;

					for ( var i = 0, n = dest.length; i !== n; ++ i ) {

						dest[ i ] = buffer[ offset ++ ];

					}

				},

				function setValue_array_setNeedsUpdate( buffer, offset ) {

					var dest = this.resolvedProperty;

					for ( var i = 0, n = dest.length; i !== n; ++ i ) {

						dest[ i ] = buffer[ offset ++ ];

					}

					this.targetObject.needsUpdate = true;

				},

				function setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {

					var dest = this.resolvedProperty;

					for ( var i = 0, n = dest.length; i !== n; ++ i ) {

						dest[ i ] = buffer[ offset ++ ];

					}

					this.targetObject.matrixWorldNeedsUpdate = true;

				}

			], [

				// ArrayElement

				function setValue_arrayElement( buffer, offset ) {

					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];

				},

				function setValue_arrayElement_setNeedsUpdate( buffer, offset ) {

					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
					this.targetObject.needsUpdate = true;

				},

				function setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {

					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
					this.targetObject.matrixWorldNeedsUpdate = true;

				}

			], [

				// HasToFromArray

				function setValue_fromArray( buffer, offset ) {

					this.resolvedProperty.fromArray( buffer, offset );

				},

				function setValue_fromArray_setNeedsUpdate( buffer, offset ) {

					this.resolvedProperty.fromArray( buffer, offset );
					this.targetObject.needsUpdate = true;

				},

				function setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {

					this.resolvedProperty.fromArray( buffer, offset );
					this.targetObject.matrixWorldNeedsUpdate = true;

				}

			]

		],

		getValue: function getValue_unbound( targetArray, offset ) {

			this.bind();
			this.getValue( targetArray, offset );

			// Note: This class uses a State pattern on a per-method basis:
			// 'bind' sets 'this.getValue' / 'setValue' and shadows the
			// prototype version of these methods with one that represents
			// the bound state. When the property is not found, the methods
			// become no-ops.

		},

		setValue: function getValue_unbound( sourceArray, offset ) {

			this.bind();
			this.setValue( sourceArray, offset );

		},

		// create getter / setter pair for a property in the scene graph
		bind: function () {

			var targetObject = this.node,
				parsedPath = this.parsedPath,

				objectName = parsedPath.objectName,
				propertyName = parsedPath.propertyName,
				propertyIndex = parsedPath.propertyIndex;

			if ( ! targetObject ) {

				targetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode;

				this.node = targetObject;

			}

			// set fail state so we can just 'return' on error
			this.getValue = this._getValue_unavailable;
			this.setValue = this._setValue_unavailable;

			// ensure there is a value node
			if ( ! targetObject ) {

				console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' );
				return;

			}

			if ( objectName ) {

				var objectIndex = parsedPath.objectIndex;

				// special cases were we need to reach deeper into the hierarchy to get the face materials....
				switch ( objectName ) {

					case 'materials':

						if ( ! targetObject.material ) {

							console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );
							return;

						}

						if ( ! targetObject.material.materials ) {

							console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );
							return;

						}

						targetObject = targetObject.material.materials;

						break;

					case 'bones':

						if ( ! targetObject.skeleton ) {

							console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );
							return;

						}

						// potential future optimization: skip this if propertyIndex is already an integer
						// and convert the integer string to a true integer.

						targetObject = targetObject.skeleton.bones;

						// support resolving morphTarget names into indices.
						for ( var i = 0; i < targetObject.length; i ++ ) {

							if ( targetObject[ i ].name === objectIndex ) {

								objectIndex = i;
								break;

							}

						}

						break;

					default:

						if ( targetObject[ objectName ] === undefined ) {

							console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );
							return;

						}

						targetObject = targetObject[ objectName ];

				}


				if ( objectIndex !== undefined ) {

					if ( targetObject[ objectIndex ] === undefined ) {

						console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );
						return;

					}

					targetObject = targetObject[ objectIndex ];

				}

			}

			// resolve property
			var nodeProperty = targetObject[ propertyName ];

			if ( nodeProperty === undefined ) {

				var nodeName = parsedPath.nodeName;

				console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +
					'.' + propertyName + ' but it wasn\'t found.', targetObject );
				return;

			}

			// determine versioning scheme
			var versioning = this.Versioning.None;

			if ( targetObject.needsUpdate !== undefined ) { // material

				versioning = this.Versioning.NeedsUpdate;
				this.targetObject = targetObject;

			} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform

				versioning = this.Versioning.MatrixWorldNeedsUpdate;
				this.targetObject = targetObject;

			}

			// determine how the property gets bound
			var bindingType = this.BindingType.Direct;

			if ( propertyIndex !== undefined ) {

				// access a sub element of the property array (only primitives are supported right now)

				if ( propertyName === "morphTargetInfluences" ) {

					// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.

					// support resolving morphTarget names into indices.
					if ( ! targetObject.geometry ) {

						console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );
						return;

					}

					if ( targetObject.geometry.isBufferGeometry ) {

						if ( ! targetObject.geometry.morphAttributes ) {

							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );
							return;

						}

						for ( var i = 0; i < this.node.geometry.morphAttributes.position.length; i ++ ) {

							if ( targetObject.geometry.morphAttributes.position[ i ].name === propertyIndex ) {

								propertyIndex = i;
								break;

							}

						}


					} else {

						if ( ! targetObject.geometry.morphTargets ) {

							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.', this );
							return;

						}

						for ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {

							if ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) {

								propertyIndex = i;
								break;

							}

						}

					}

				}

				bindingType = this.BindingType.ArrayElement;

				this.resolvedProperty = nodeProperty;
				this.propertyIndex = propertyIndex;

			} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {

				// must use copy for Object3D.Euler/Quaternion

				bindingType = this.BindingType.HasFromToArray;

				this.resolvedProperty = nodeProperty;

			} else if ( Array.isArray( nodeProperty ) ) {

				bindingType = this.BindingType.EntireArray;

				this.resolvedProperty = nodeProperty;

			} else {

				this.propertyName = propertyName;

			}

			// select getter / setter
			this.getValue = this.GetterByBindingType[ bindingType ];
			this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];

		},

		unbind: function () {

			this.node = null;

			// back to the prototype version of getValue / setValue
			// note: avoiding to mutate the shape of 'this' via 'delete'
			this.getValue = this._getValue_unbound;
			this.setValue = this._setValue_unbound;

		}

	} );

	//!\ DECLARE ALIAS AFTER assign prototype !
	Object.assign( PropertyBinding.prototype, {

		// initial state of these methods that calls 'bind'
		_getValue_unbound: PropertyBinding.prototype.getValue,
		_setValue_unbound: PropertyBinding.prototype.setValue,

	} );

	/**
	 *
	 * A group of objects that receives a shared animation state.
	 *
	 * Usage:
	 *
	 * 	-	Add objects you would otherwise pass as 'root' to the
	 * 		constructor or the .clipAction method of AnimationMixer.
	 *
	 * 	-	Instead pass this object as 'root'.
	 *
	 * 	-	You can also add and remove objects later when the mixer
	 * 		is running.
	 *
	 * Note:
	 *
	 *  	Objects of this class appear as one object to the mixer,
	 *  	so cache control of the individual objects must be done
	 *  	on the group.
	 *
	 * Limitation:
	 *
	 * 	- 	The animated properties must be compatible among the
	 * 		all objects in the group.
	 *
	 *  -	A single property can either be controlled through a
	 *  	target group or directly, but not both.
	 *
	 * @author tschw
	 */

	function AnimationObjectGroup() {

		this.uuid = _Math.generateUUID();

		// cached objects followed by the active ones
		this._objects = Array.prototype.slice.call( arguments );

		this.nCachedObjects_ = 0;			// threshold
		// note: read by PropertyBinding.Composite

		var indices = {};
		this._indicesByUUID = indices;		// for bookkeeping

		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

			indices[ arguments[ i ].uuid ] = i;

		}

		this._paths = [];					// inside: string
		this._parsedPaths = [];				// inside: { we don't care, here }
		this._bindings = []; 				// inside: Array< PropertyBinding >
		this._bindingsIndicesByPath = {}; 	// inside: indices in these arrays

		var scope = this;

		this.stats = {

			objects: {
				get total() {

					return scope._objects.length;

				},
				get inUse() {

					return this.total - scope.nCachedObjects_;

				}
			},
			get bindingsPerObject() {

				return scope._bindings.length;

			}

		};

	}

	Object.assign( AnimationObjectGroup.prototype, {

		isAnimationObjectGroup: true,

		add: function () {

			var objects = this._objects,
				nObjects = objects.length,
				nCachedObjects = this.nCachedObjects_,
				indicesByUUID = this._indicesByUUID,
				paths = this._paths,
				parsedPaths = this._parsedPaths,
				bindings = this._bindings,
				nBindings = bindings.length,
				knownObject = undefined;

			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

				var object = arguments[ i ],
					uuid = object.uuid,
					index = indicesByUUID[ uuid ];

				if ( index === undefined ) {

					// unknown object -> add it to the ACTIVE region

					index = nObjects ++;
					indicesByUUID[ uuid ] = index;
					objects.push( object );

					// accounting is done, now do the same for all bindings

					for ( var j = 0, m = nBindings; j !== m; ++ j ) {

						bindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) );

					}

				} else if ( index < nCachedObjects ) {

					knownObject = objects[ index ];

					// move existing object to the ACTIVE region

					var firstActiveIndex = -- nCachedObjects,
						lastCachedObject = objects[ firstActiveIndex ];

					indicesByUUID[ lastCachedObject.uuid ] = index;
					objects[ index ] = lastCachedObject;

					indicesByUUID[ uuid ] = firstActiveIndex;
					objects[ firstActiveIndex ] = object;

					// accounting is done, now do the same for all bindings

					for ( var j = 0, m = nBindings; j !== m; ++ j ) {

						var bindingsForPath = bindings[ j ],
							lastCached = bindingsForPath[ firstActiveIndex ],
							binding = bindingsForPath[ index ];

						bindingsForPath[ index ] = lastCached;

						if ( binding === undefined ) {

							// since we do not bother to create new bindings
							// for objects that are cached, the binding may
							// or may not exist

							binding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] );

						}

						bindingsForPath[ firstActiveIndex ] = binding;

					}

				} else if ( objects[ index ] !== knownObject ) {

					console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +
							'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );

				} // else the object is already where we want it to be

			} // for arguments

			this.nCachedObjects_ = nCachedObjects;

		},

		remove: function () {

			var objects = this._objects,
				nCachedObjects = this.nCachedObjects_,
				indicesByUUID = this._indicesByUUID,
				bindings = this._bindings,
				nBindings = bindings.length;

			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

				var object = arguments[ i ],
					uuid = object.uuid,
					index = indicesByUUID[ uuid ];

				if ( index !== undefined && index >= nCachedObjects ) {

					// move existing object into the CACHED region

					var lastCachedIndex = nCachedObjects ++,
						firstActiveObject = objects[ lastCachedIndex ];

					indicesByUUID[ firstActiveObject.uuid ] = index;
					objects[ index ] = firstActiveObject;

					indicesByUUID[ uuid ] = lastCachedIndex;
					objects[ lastCachedIndex ] = object;

					// accounting is done, now do the same for all bindings

					for ( var j = 0, m = nBindings; j !== m; ++ j ) {

						var bindingsForPath = bindings[ j ],
							firstActive = bindingsForPath[ lastCachedIndex ],
							binding = bindingsForPath[ index ];

						bindingsForPath[ index ] = firstActive;
						bindingsForPath[ lastCachedIndex ] = binding;

					}

				}

			} // for arguments

			this.nCachedObjects_ = nCachedObjects;

		},

		// remove & forget
		uncache: function () {

			var objects = this._objects,
				nObjects = objects.length,
				nCachedObjects = this.nCachedObjects_,
				indicesByUUID = this._indicesByUUID,
				bindings = this._bindings,
				nBindings = bindings.length;

			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

				var object = arguments[ i ],
					uuid = object.uuid,
					index = indicesByUUID[ uuid ];

				if ( index !== undefined ) {

					delete indicesByUUID[ uuid ];

					if ( index < nCachedObjects ) {

						// object is cached, shrink the CACHED region

						var firstActiveIndex = -- nCachedObjects,
							lastCachedObject = objects[ firstActiveIndex ],
							lastIndex = -- nObjects,
							lastObject = objects[ lastIndex ];

						// last cached object takes this object's place
						indicesByUUID[ lastCachedObject.uuid ] = index;
						objects[ index ] = lastCachedObject;

						// last object goes to the activated slot and pop
						indicesByUUID[ lastObject.uuid ] = firstActiveIndex;
						objects[ firstActiveIndex ] = lastObject;
						objects.pop();

						// accounting is done, now do the same for all bindings

						for ( var j = 0, m = nBindings; j !== m; ++ j ) {

							var bindingsForPath = bindings[ j ],
								lastCached = bindingsForPath[ firstActiveIndex ],
								last = bindingsForPath[ lastIndex ];

							bindingsForPath[ index ] = lastCached;
							bindingsForPath[ firstActiveIndex ] = last;
							bindingsForPath.pop();

						}

					} else {

						// object is active, just swap with the last and pop

						var lastIndex = -- nObjects,
							lastObject = objects[ lastIndex ];

						indicesByUUID[ lastObject.uuid ] = index;
						objects[ index ] = lastObject;
						objects.pop();

						// accounting is done, now do the same for all bindings

						for ( var j = 0, m = nBindings; j !== m; ++ j ) {

							var bindingsForPath = bindings[ j ];

							bindingsForPath[ index ] = bindingsForPath[ lastIndex ];
							bindingsForPath.pop();

						}

					} // cached or active

				} // if object is known

			} // for arguments

			this.nCachedObjects_ = nCachedObjects;

		},

		// Internal interface used by befriended PropertyBinding.Composite:

		subscribe_: function ( path, parsedPath ) {

			// returns an array of bindings for the given path that is changed
			// according to the contained objects in the group

			var indicesByPath = this._bindingsIndicesByPath,
				index = indicesByPath[ path ],
				bindings = this._bindings;

			if ( index !== undefined ) return bindings[ index ];

			var paths = this._paths,
				parsedPaths = this._parsedPaths,
				objects = this._objects,
				nObjects = objects.length,
				nCachedObjects = this.nCachedObjects_,
				bindingsForPath = new Array( nObjects );

			index = bindings.length;

			indicesByPath[ path ] = index;

			paths.push( path );
			parsedPaths.push( parsedPath );
			bindings.push( bindingsForPath );

			for ( var i = nCachedObjects, n = objects.length; i !== n; ++ i ) {

				var object = objects[ i ];
				bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );

			}

			return bindingsForPath;

		},

		unsubscribe_: function ( path ) {

			// tells the group to forget about a property path and no longer
			// update the array previously obtained with 'subscribe_'

			var indicesByPath = this._bindingsIndicesByPath,
				index = indicesByPath[ path ];

			if ( index !== undefined ) {

				var paths = this._paths,
					parsedPaths = this._parsedPaths,
					bindings = this._bindings,
					lastBindingsIndex = bindings.length - 1,
					lastBindings = bindings[ lastBindingsIndex ],
					lastBindingsPath = path[ lastBindingsIndex ];

				indicesByPath[ lastBindingsPath ] = index;

				bindings[ index ] = lastBindings;
				bindings.pop();

				parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];
				parsedPaths.pop();

				paths[ index ] = paths[ lastBindingsIndex ];
				paths.pop();

			}

		}

	} );

	/**
	 *
	 * Action provided by AnimationMixer for scheduling clip playback on specific
	 * objects.
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 *
	 */

	function AnimationAction( mixer, clip, localRoot ) {

		this._mixer = mixer;
		this._clip = clip;
		this._localRoot = localRoot || null;

		var tracks = clip.tracks,
			nTracks = tracks.length,
			interpolants = new Array( nTracks );

		var interpolantSettings = {
			endingStart: ZeroCurvatureEnding,
			endingEnd: ZeroCurvatureEnding
		};

		for ( var i = 0; i !== nTracks; ++ i ) {

			var interpolant = tracks[ i ].createInterpolant( null );
			interpolants[ i ] = interpolant;
			interpolant.settings = interpolantSettings;

		}

		this._interpolantSettings = interpolantSettings;

		this._interpolants = interpolants;	// bound by the mixer

		// inside: PropertyMixer (managed by the mixer)
		this._propertyBindings = new Array( nTracks );

		this._cacheIndex = null;			// for the memory manager
		this._byClipCacheIndex = null;		// for the memory manager

		this._timeScaleInterpolant = null;
		this._weightInterpolant = null;

		this.loop = LoopRepeat;
		this._loopCount = - 1;

		// global mixer time when the action is to be started
		// it's set back to 'null' upon start of the action
		this._startTime = null;

		// scaled local time of the action
		// gets clamped or wrapped to 0..clip.duration according to loop
		this.time = 0;

		this.timeScale = 1;
		this._effectiveTimeScale = 1;

		this.weight = 1;
		this._effectiveWeight = 1;

		this.repetitions = Infinity; 		// no. of repetitions when looping

		this.paused = false;				// true -> zero effective time scale
		this.enabled = true;				// false -> zero effective weight

		this.clampWhenFinished 	= false;	// keep feeding the last frame?

		this.zeroSlopeAtStart 	= true;		// for smooth interpolation w/o separate
		this.zeroSlopeAtEnd		= true;		// clips for start, loop and end

	}

	Object.assign( AnimationAction.prototype, {

		// State & Scheduling

		play: function () {

			this._mixer._activateAction( this );

			return this;

		},

		stop: function () {

			this._mixer._deactivateAction( this );

			return this.reset();

		},

		reset: function () {

			this.paused = false;
			this.enabled = true;

			this.time = 0;			// restart clip
			this._loopCount = - 1;	// forget previous loops
			this._startTime = null;	// forget scheduling

			return this.stopFading().stopWarping();

		},

		isRunning: function () {

			return this.enabled && ! this.paused && this.timeScale !== 0 &&
					this._startTime === null && this._mixer._isActiveAction( this );

		},

		// return true when play has been called
		isScheduled: function () {

			return this._mixer._isActiveAction( this );

		},

		startAt: function ( time ) {

			this._startTime = time;

			return this;

		},

		setLoop: function ( mode, repetitions ) {

			this.loop = mode;
			this.repetitions = repetitions;

			return this;

		},

		// Weight

		// set the weight stopping any scheduled fading
		// although .enabled = false yields an effective weight of zero, this
		// method does *not* change .enabled, because it would be confusing
		setEffectiveWeight: function ( weight ) {

			this.weight = weight;

			// note: same logic as when updated at runtime
			this._effectiveWeight = this.enabled ? weight : 0;

			return this.stopFading();

		},

		// return the weight considering fading and .enabled
		getEffectiveWeight: function () {

			return this._effectiveWeight;

		},

		fadeIn: function ( duration ) {

			return this._scheduleFading( duration, 0, 1 );

		},

		fadeOut: function ( duration ) {

			return this._scheduleFading( duration, 1, 0 );

		},

		crossFadeFrom: function ( fadeOutAction, duration, warp ) {

			fadeOutAction.fadeOut( duration );
			this.fadeIn( duration );

			if ( warp ) {

				var fadeInDuration = this._clip.duration,
					fadeOutDuration = fadeOutAction._clip.duration,

					startEndRatio = fadeOutDuration / fadeInDuration,
					endStartRatio = fadeInDuration / fadeOutDuration;

				fadeOutAction.warp( 1.0, startEndRatio, duration );
				this.warp( endStartRatio, 1.0, duration );

			}

			return this;

		},

		crossFadeTo: function ( fadeInAction, duration, warp ) {

			return fadeInAction.crossFadeFrom( this, duration, warp );

		},

		stopFading: function () {

			var weightInterpolant = this._weightInterpolant;

			if ( weightInterpolant !== null ) {

				this._weightInterpolant = null;
				this._mixer._takeBackControlInterpolant( weightInterpolant );

			}

			return this;

		},

		// Time Scale Control

		// set the time scale stopping any scheduled warping
		// although .paused = true yields an effective time scale of zero, this
		// method does *not* change .paused, because it would be confusing
		setEffectiveTimeScale: function ( timeScale ) {

			this.timeScale = timeScale;
			this._effectiveTimeScale = this.paused ? 0 : timeScale;

			return this.stopWarping();

		},

		// return the time scale considering warping and .paused
		getEffectiveTimeScale: function () {

			return this._effectiveTimeScale;

		},

		setDuration: function ( duration ) {

			this.timeScale = this._clip.duration / duration;

			return this.stopWarping();

		},

		syncWith: function ( action ) {

			this.time = action.time;
			this.timeScale = action.timeScale;

			return this.stopWarping();

		},

		halt: function ( duration ) {

			return this.warp( this._effectiveTimeScale, 0, duration );

		},

		warp: function ( startTimeScale, endTimeScale, duration ) {

			var mixer = this._mixer, now = mixer.time,
				interpolant = this._timeScaleInterpolant,

				timeScale = this.timeScale;

			if ( interpolant === null ) {

				interpolant = mixer._lendControlInterpolant();
				this._timeScaleInterpolant = interpolant;

			}

			var times = interpolant.parameterPositions,
				values = interpolant.sampleValues;

			times[ 0 ] = now;
			times[ 1 ] = now + duration;

			values[ 0 ] = startTimeScale / timeScale;
			values[ 1 ] = endTimeScale / timeScale;

			return this;

		},

		stopWarping: function () {

			var timeScaleInterpolant = this._timeScaleInterpolant;

			if ( timeScaleInterpolant !== null ) {

				this._timeScaleInterpolant = null;
				this._mixer._takeBackControlInterpolant( timeScaleInterpolant );

			}

			return this;

		},

		// Object Accessors

		getMixer: function () {

			return this._mixer;

		},

		getClip: function () {

			return this._clip;

		},

		getRoot: function () {

			return this._localRoot || this._mixer._root;

		},

		// Interna

		_update: function ( time, deltaTime, timeDirection, accuIndex ) {

			// called by the mixer

			if ( ! this.enabled ) {

				// call ._updateWeight() to update ._effectiveWeight

				this._updateWeight( time );
				return;

			}

			var startTime = this._startTime;

			if ( startTime !== null ) {

				// check for scheduled start of action

				var timeRunning = ( time - startTime ) * timeDirection;
				if ( timeRunning < 0 || timeDirection === 0 ) {

					return; // yet to come / don't decide when delta = 0

				}

				// start

				this._startTime = null; // unschedule
				deltaTime = timeDirection * timeRunning;

			}

			// apply time scale and advance time

			deltaTime *= this._updateTimeScale( time );
			var clipTime = this._updateTime( deltaTime );

			// note: _updateTime may disable the action resulting in
			// an effective weight of 0

			var weight = this._updateWeight( time );

			if ( weight > 0 ) {

				var interpolants = this._interpolants;
				var propertyMixers = this._propertyBindings;

				for ( var j = 0, m = interpolants.length; j !== m; ++ j ) {

					interpolants[ j ].evaluate( clipTime );
					propertyMixers[ j ].accumulate( accuIndex, weight );

				}

			}

		},

		_updateWeight: function ( time ) {

			var weight = 0;

			if ( this.enabled ) {

				weight = this.weight;
				var interpolant = this._weightInterpolant;

				if ( interpolant !== null ) {

					var interpolantValue = interpolant.evaluate( time )[ 0 ];

					weight *= interpolantValue;

					if ( time > interpolant.parameterPositions[ 1 ] ) {

						this.stopFading();

						if ( interpolantValue === 0 ) {

							// faded out, disable
							this.enabled = false;

						}

					}

				}

			}

			this._effectiveWeight = weight;
			return weight;

		},

		_updateTimeScale: function ( time ) {

			var timeScale = 0;

			if ( ! this.paused ) {

				timeScale = this.timeScale;

				var interpolant = this._timeScaleInterpolant;

				if ( interpolant !== null ) {

					var interpolantValue = interpolant.evaluate( time )[ 0 ];

					timeScale *= interpolantValue;

					if ( time > interpolant.parameterPositions[ 1 ] ) {

						this.stopWarping();

						if ( timeScale === 0 ) {

							// motion has halted, pause
							this.paused = true;

						} else {

							// warp done - apply final time scale
							this.timeScale = timeScale;

						}

					}

				}

			}

			this._effectiveTimeScale = timeScale;
			return timeScale;

		},

		_updateTime: function ( deltaTime ) {

			var time = this.time + deltaTime;
			var duration = this._clip.duration;
			var loop = this.loop;
			var loopCount = this._loopCount;

			var pingPong = ( loop === LoopPingPong );

			if ( deltaTime === 0 ) {

				if ( loopCount === - 1 ) return time;

				return ( pingPong && ( loopCount & 1 ) === 1 ) ? duration - time : time;

			}

			if ( loop === LoopOnce ) {

				if ( loopCount === - 1 ) {

					// just started

					this._loopCount = 0;
					this._setEndings( true, true, false );

				}

				handle_stop: {

					if ( time >= duration ) {

						time = duration;

					} else if ( time < 0 ) {

						time = 0;

					} else break handle_stop;

					if ( this.clampWhenFinished ) this.paused = true;
					else this.enabled = false;

					this._mixer.dispatchEvent( {
						type: 'finished', action: this,
						direction: deltaTime < 0 ? - 1 : 1
					} );

				}

			} else { // repetitive Repeat or PingPong

				if ( loopCount === - 1 ) {

					// just started

					if ( deltaTime >= 0 ) {

						loopCount = 0;

						this._setEndings( true, this.repetitions === 0, pingPong );

					} else {

						// when looping in reverse direction, the initial
						// transition through zero counts as a repetition,
						// so leave loopCount at -1

						this._setEndings( this.repetitions === 0, true, pingPong );

					}

				}

				if ( time >= duration || time < 0 ) {

					// wrap around

					var loopDelta = Math.floor( time / duration ); // signed
					time -= duration * loopDelta;

					loopCount += Math.abs( loopDelta );

					var pending = this.repetitions - loopCount;

					if ( pending <= 0 ) {

						// have to stop (switch state, clamp time, fire event)

						if ( this.clampWhenFinished ) this.paused = true;
						else this.enabled = false;

						time = deltaTime > 0 ? duration : 0;

						this._mixer.dispatchEvent( {
							type: 'finished', action: this,
							direction: deltaTime > 0 ? 1 : - 1
						} );

					} else {

						// keep running

						if ( pending === 1 ) {

							// entering the last round

							var atStart = deltaTime < 0;
							this._setEndings( atStart, ! atStart, pingPong );

						} else {

							this._setEndings( false, false, pingPong );

						}

						this._loopCount = loopCount;

						this._mixer.dispatchEvent( {
							type: 'loop', action: this, loopDelta: loopDelta
						} );

					}

				}

				if ( pingPong && ( loopCount & 1 ) === 1 ) {

					// invert time for the "pong round"

					this.time = time;
					return duration - time;

				}

			}

			this.time = time;
			return time;

		},

		_setEndings: function ( atStart, atEnd, pingPong ) {

			var settings = this._interpolantSettings;

			if ( pingPong ) {

				settings.endingStart 	= ZeroSlopeEnding;
				settings.endingEnd		= ZeroSlopeEnding;

			} else {

				// assuming for LoopOnce atStart == atEnd == true

				if ( atStart ) {

					settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;

				} else {

					settings.endingStart = WrapAroundEnding;

				}

				if ( atEnd ) {

					settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;

				} else {

					settings.endingEnd 	 = WrapAroundEnding;

				}

			}

		},

		_scheduleFading: function ( duration, weightNow, weightThen ) {

			var mixer = this._mixer, now = mixer.time,
				interpolant = this._weightInterpolant;

			if ( interpolant === null ) {

				interpolant = mixer._lendControlInterpolant();
				this._weightInterpolant = interpolant;

			}

			var times = interpolant.parameterPositions,
				values = interpolant.sampleValues;

			times[ 0 ] = now; 				values[ 0 ] = weightNow;
			times[ 1 ] = now + duration;	values[ 1 ] = weightThen;

			return this;

		}

	} );

	/**
	 *
	 * Player for AnimationClips.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function AnimationMixer( root ) {

		this._root = root;
		this._initMemoryManager();
		this._accuIndex = 0;

		this.time = 0;

		this.timeScale = 1.0;

	}

	AnimationMixer.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {

		constructor: AnimationMixer,

		_bindAction: function ( action, prototypeAction ) {

			var root = action._localRoot || this._root,
				tracks = action._clip.tracks,
				nTracks = tracks.length,
				bindings = action._propertyBindings,
				interpolants = action._interpolants,
				rootUuid = root.uuid,
				bindingsByRoot = this._bindingsByRootAndName,
				bindingsByName = bindingsByRoot[ rootUuid ];

			if ( bindingsByName === undefined ) {

				bindingsByName = {};
				bindingsByRoot[ rootUuid ] = bindingsByName;

			}

			for ( var i = 0; i !== nTracks; ++ i ) {

				var track = tracks[ i ],
					trackName = track.name,
					binding = bindingsByName[ trackName ];

				if ( binding !== undefined ) {

					bindings[ i ] = binding;

				} else {

					binding = bindings[ i ];

					if ( binding !== undefined ) {

						// existing binding, make sure the cache knows

						if ( binding._cacheIndex === null ) {

							++ binding.referenceCount;
							this._addInactiveBinding( binding, rootUuid, trackName );

						}

						continue;

					}

					var path = prototypeAction && prototypeAction.
						_propertyBindings[ i ].binding.parsedPath;

					binding = new PropertyMixer(
						PropertyBinding.create( root, trackName, path ),
						track.ValueTypeName, track.getValueSize() );

					++ binding.referenceCount;
					this._addInactiveBinding( binding, rootUuid, trackName );

					bindings[ i ] = binding;

				}

				interpolants[ i ].resultBuffer = binding.buffer;

			}

		},

		_activateAction: function ( action ) {

			if ( ! this._isActiveAction( action ) ) {

				if ( action._cacheIndex === null ) {

					// this action has been forgotten by the cache, but the user
					// appears to be still using it -> rebind

					var rootUuid = ( action._localRoot || this._root ).uuid,
						clipUuid = action._clip.uuid,
						actionsForClip = this._actionsByClip[ clipUuid ];

					this._bindAction( action,
						actionsForClip && actionsForClip.knownActions[ 0 ] );

					this._addInactiveAction( action, clipUuid, rootUuid );

				}

				var bindings = action._propertyBindings;

				// increment reference counts / sort out state
				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {

					var binding = bindings[ i ];

					if ( binding.useCount ++ === 0 ) {

						this._lendBinding( binding );
						binding.saveOriginalState();

					}

				}

				this._lendAction( action );

			}

		},

		_deactivateAction: function ( action ) {

			if ( this._isActiveAction( action ) ) {

				var bindings = action._propertyBindings;

				// decrement reference counts / sort out state
				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {

					var binding = bindings[ i ];

					if ( -- binding.useCount === 0 ) {

						binding.restoreOriginalState();
						this._takeBackBinding( binding );

					}

				}

				this._takeBackAction( action );

			}

		},

		// Memory manager

		_initMemoryManager: function () {

			this._actions = []; // 'nActiveActions' followed by inactive ones
			this._nActiveActions = 0;

			this._actionsByClip = {};
			// inside:
			// {
			// 		knownActions: Array< AnimationAction >	- used as prototypes
			// 		actionByRoot: AnimationAction			- lookup
			// }


			this._bindings = []; // 'nActiveBindings' followed by inactive ones
			this._nActiveBindings = 0;

			this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >


			this._controlInterpolants = []; // same game as above
			this._nActiveControlInterpolants = 0;

			var scope = this;

			this.stats = {

				actions: {
					get total() {

						return scope._actions.length;

					},
					get inUse() {

						return scope._nActiveActions;

					}
				},
				bindings: {
					get total() {

						return scope._bindings.length;

					},
					get inUse() {

						return scope._nActiveBindings;

					}
				},
				controlInterpolants: {
					get total() {

						return scope._controlInterpolants.length;

					},
					get inUse() {

						return scope._nActiveControlInterpolants;

					}
				}

			};

		},

		// Memory management for AnimationAction objects

		_isActiveAction: function ( action ) {

			var index = action._cacheIndex;
			return index !== null && index < this._nActiveActions;

		},

		_addInactiveAction: function ( action, clipUuid, rootUuid ) {

			var actions = this._actions,
				actionsByClip = this._actionsByClip,
				actionsForClip = actionsByClip[ clipUuid ];

			if ( actionsForClip === undefined ) {

				actionsForClip = {

					knownActions: [ action ],
					actionByRoot: {}

				};

				action._byClipCacheIndex = 0;

				actionsByClip[ clipUuid ] = actionsForClip;

			} else {

				var knownActions = actionsForClip.knownActions;

				action._byClipCacheIndex = knownActions.length;
				knownActions.push( action );

			}

			action._cacheIndex = actions.length;
			actions.push( action );

			actionsForClip.actionByRoot[ rootUuid ] = action;

		},

		_removeInactiveAction: function ( action ) {

			var actions = this._actions,
				lastInactiveAction = actions[ actions.length - 1 ],
				cacheIndex = action._cacheIndex;

			lastInactiveAction._cacheIndex = cacheIndex;
			actions[ cacheIndex ] = lastInactiveAction;
			actions.pop();

			action._cacheIndex = null;


			var clipUuid = action._clip.uuid,
				actionsByClip = this._actionsByClip,
				actionsForClip = actionsByClip[ clipUuid ],
				knownActionsForClip = actionsForClip.knownActions,

				lastKnownAction =
					knownActionsForClip[ knownActionsForClip.length - 1 ],

				byClipCacheIndex = action._byClipCacheIndex;

			lastKnownAction._byClipCacheIndex = byClipCacheIndex;
			knownActionsForClip[ byClipCacheIndex ] = lastKnownAction;
			knownActionsForClip.pop();

			action._byClipCacheIndex = null;


			var actionByRoot = actionsForClip.actionByRoot,
				rootUuid = ( action._localRoot || this._root ).uuid;

			delete actionByRoot[ rootUuid ];

			if ( knownActionsForClip.length === 0 ) {

				delete actionsByClip[ clipUuid ];

			}

			this._removeInactiveBindingsForAction( action );

		},

		_removeInactiveBindingsForAction: function ( action ) {

			var bindings = action._propertyBindings;
			for ( var i = 0, n = bindings.length; i !== n; ++ i ) {

				var binding = bindings[ i ];

				if ( -- binding.referenceCount === 0 ) {

					this._removeInactiveBinding( binding );

				}

			}

		},

		_lendAction: function ( action ) {

			// [ active actions |  inactive actions  ]
			// [  active actions >| inactive actions ]
			//                 s        a
			//                  <-swap->
			//                 a        s

			var actions = this._actions,
				prevIndex = action._cacheIndex,

				lastActiveIndex = this._nActiveActions ++,

				firstInactiveAction = actions[ lastActiveIndex ];

			action._cacheIndex = lastActiveIndex;
			actions[ lastActiveIndex ] = action;

			firstInactiveAction._cacheIndex = prevIndex;
			actions[ prevIndex ] = firstInactiveAction;

		},

		_takeBackAction: function ( action ) {

			// [  active actions  | inactive actions ]
			// [ active actions |< inactive actions  ]
			//        a        s
			//         <-swap->
			//        s        a

			var actions = this._actions,
				prevIndex = action._cacheIndex,

				firstInactiveIndex = -- this._nActiveActions,

				lastActiveAction = actions[ firstInactiveIndex ];

			action._cacheIndex = firstInactiveIndex;
			actions[ firstInactiveIndex ] = action;

			lastActiveAction._cacheIndex = prevIndex;
			actions[ prevIndex ] = lastActiveAction;

		},

		// Memory management for PropertyMixer objects

		_addInactiveBinding: function ( binding, rootUuid, trackName ) {

			var bindingsByRoot = this._bindingsByRootAndName,
				bindingByName = bindingsByRoot[ rootUuid ],

				bindings = this._bindings;

			if ( bindingByName === undefined ) {

				bindingByName = {};
				bindingsByRoot[ rootUuid ] = bindingByName;

			}

			bindingByName[ trackName ] = binding;

			binding._cacheIndex = bindings.length;
			bindings.push( binding );

		},

		_removeInactiveBinding: function ( binding ) {

			var bindings = this._bindings,
				propBinding = binding.binding,
				rootUuid = propBinding.rootNode.uuid,
				trackName = propBinding.path,
				bindingsByRoot = this._bindingsByRootAndName,
				bindingByName = bindingsByRoot[ rootUuid ],

				lastInactiveBinding = bindings[ bindings.length - 1 ],
				cacheIndex = binding._cacheIndex;

			lastInactiveBinding._cacheIndex = cacheIndex;
			bindings[ cacheIndex ] = lastInactiveBinding;
			bindings.pop();

			delete bindingByName[ trackName ];

			remove_empty_map: {

				for ( var _ in bindingByName ) break remove_empty_map; // eslint-disable-line no-unused-vars

				delete bindingsByRoot[ rootUuid ];

			}

		},

		_lendBinding: function ( binding ) {

			var bindings = this._bindings,
				prevIndex = binding._cacheIndex,

				lastActiveIndex = this._nActiveBindings ++,

				firstInactiveBinding = bindings[ lastActiveIndex ];

			binding._cacheIndex = lastActiveIndex;
			bindings[ lastActiveIndex ] = binding;

			firstInactiveBinding._cacheIndex = prevIndex;
			bindings[ prevIndex ] = firstInactiveBinding;

		},

		_takeBackBinding: function ( binding ) {

			var bindings = this._bindings,
				prevIndex = binding._cacheIndex,

				firstInactiveIndex = -- this._nActiveBindings,

				lastActiveBinding = bindings[ firstInactiveIndex ];

			binding._cacheIndex = firstInactiveIndex;
			bindings[ firstInactiveIndex ] = binding;

			lastActiveBinding._cacheIndex = prevIndex;
			bindings[ prevIndex ] = lastActiveBinding;

		},


		// Memory management of Interpolants for weight and time scale

		_lendControlInterpolant: function () {

			var interpolants = this._controlInterpolants,
				lastActiveIndex = this._nActiveControlInterpolants ++,
				interpolant = interpolants[ lastActiveIndex ];

			if ( interpolant === undefined ) {

				interpolant = new LinearInterpolant(
					new Float32Array( 2 ), new Float32Array( 2 ),
					1, this._controlInterpolantsResultBuffer );

				interpolant.__cacheIndex = lastActiveIndex;
				interpolants[ lastActiveIndex ] = interpolant;

			}

			return interpolant;

		},

		_takeBackControlInterpolant: function ( interpolant ) {

			var interpolants = this._controlInterpolants,
				prevIndex = interpolant.__cacheIndex,

				firstInactiveIndex = -- this._nActiveControlInterpolants,

				lastActiveInterpolant = interpolants[ firstInactiveIndex ];

			interpolant.__cacheIndex = firstInactiveIndex;
			interpolants[ firstInactiveIndex ] = interpolant;

			lastActiveInterpolant.__cacheIndex = prevIndex;
			interpolants[ prevIndex ] = lastActiveInterpolant;

		},

		_controlInterpolantsResultBuffer: new Float32Array( 1 ),

		// return an action for a clip optionally using a custom root target
		// object (this method allocates a lot of dynamic memory in case a
		// previously unknown clip/root combination is specified)
		clipAction: function ( clip, optionalRoot ) {

			var root = optionalRoot || this._root,
				rootUuid = root.uuid,

				clipObject = typeof clip === 'string' ?
					AnimationClip.findByName( root, clip ) : clip,

				clipUuid = clipObject !== null ? clipObject.uuid : clip,

				actionsForClip = this._actionsByClip[ clipUuid ],
				prototypeAction = null;

			if ( actionsForClip !== undefined ) {

				var existingAction =
						actionsForClip.actionByRoot[ rootUuid ];

				if ( existingAction !== undefined ) {

					return existingAction;

				}

				// we know the clip, so we don't have to parse all
				// the bindings again but can just copy
				prototypeAction = actionsForClip.knownActions[ 0 ];

				// also, take the clip from the prototype action
				if ( clipObject === null )
					clipObject = prototypeAction._clip;

			}

			// clip must be known when specified via string
			if ( clipObject === null ) return null;

			// allocate all resources required to run it
			var newAction = new AnimationAction( this, clipObject, optionalRoot );

			this._bindAction( newAction, prototypeAction );

			// and make the action known to the memory manager
			this._addInactiveAction( newAction, clipUuid, rootUuid );

			return newAction;

		},

		// get an existing action
		existingAction: function ( clip, optionalRoot ) {

			var root = optionalRoot || this._root,
				rootUuid = root.uuid,

				clipObject = typeof clip === 'string' ?
					AnimationClip.findByName( root, clip ) : clip,

				clipUuid = clipObject ? clipObject.uuid : clip,

				actionsForClip = this._actionsByClip[ clipUuid ];

			if ( actionsForClip !== undefined ) {

				return actionsForClip.actionByRoot[ rootUuid ] || null;

			}

			return null;

		},

		// deactivates all previously scheduled actions
		stopAllAction: function () {

			var actions = this._actions,
				nActions = this._nActiveActions,
				bindings = this._bindings,
				nBindings = this._nActiveBindings;

			this._nActiveActions = 0;
			this._nActiveBindings = 0;

			for ( var i = 0; i !== nActions; ++ i ) {

				actions[ i ].reset();

			}

			for ( var i = 0; i !== nBindings; ++ i ) {

				bindings[ i ].useCount = 0;

			}

			return this;

		},

		// advance the time and update apply the animation
		update: function ( deltaTime ) {

			deltaTime *= this.timeScale;

			var actions = this._actions,
				nActions = this._nActiveActions,

				time = this.time += deltaTime,
				timeDirection = Math.sign( deltaTime ),

				accuIndex = this._accuIndex ^= 1;

			// run active actions

			for ( var i = 0; i !== nActions; ++ i ) {

				var action = actions[ i ];

				action._update( time, deltaTime, timeDirection, accuIndex );

			}

			// update scene graph

			var bindings = this._bindings,
				nBindings = this._nActiveBindings;

			for ( var i = 0; i !== nBindings; ++ i ) {

				bindings[ i ].apply( accuIndex );

			}

			return this;

		},

		// return this mixer's root target object
		getRoot: function () {

			return this._root;

		},

		// free all resources specific to a particular clip
		uncacheClip: function ( clip ) {

			var actions = this._actions,
				clipUuid = clip.uuid,
				actionsByClip = this._actionsByClip,
				actionsForClip = actionsByClip[ clipUuid ];

			if ( actionsForClip !== undefined ) {

				// note: just calling _removeInactiveAction would mess up the
				// iteration state and also require updating the state we can
				// just throw away

				var actionsToRemove = actionsForClip.knownActions;

				for ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {

					var action = actionsToRemove[ i ];

					this._deactivateAction( action );

					var cacheIndex = action._cacheIndex,
						lastInactiveAction = actions[ actions.length - 1 ];

					action._cacheIndex = null;
					action._byClipCacheIndex = null;

					lastInactiveAction._cacheIndex = cacheIndex;
					actions[ cacheIndex ] = lastInactiveAction;
					actions.pop();

					this._removeInactiveBindingsForAction( action );

				}

				delete actionsByClip[ clipUuid ];

			}

		},

		// free all resources specific to a particular root target object
		uncacheRoot: function ( root ) {

			var rootUuid = root.uuid,
				actionsByClip = this._actionsByClip;

			for ( var clipUuid in actionsByClip ) {

				var actionByRoot = actionsByClip[ clipUuid ].actionByRoot,
					action = actionByRoot[ rootUuid ];

				if ( action !== undefined ) {

					this._deactivateAction( action );
					this._removeInactiveAction( action );

				}

			}

			var bindingsByRoot = this._bindingsByRootAndName,
				bindingByName = bindingsByRoot[ rootUuid ];

			if ( bindingByName !== undefined ) {

				for ( var trackName in bindingByName ) {

					var binding = bindingByName[ trackName ];
					binding.restoreOriginalState();
					this._removeInactiveBinding( binding );

				}

			}

		},

		// remove a targeted clip from the cache
		uncacheAction: function ( clip, optionalRoot ) {

			var action = this.existingAction( clip, optionalRoot );

			if ( action !== null ) {

				this._deactivateAction( action );
				this._removeInactiveAction( action );

			}

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Uniform( value ) {

		if ( typeof value === 'string' ) {

			console.warn( 'THREE.Uniform: Type parameter is no longer needed.' );
			value = arguments[ 1 ];

		}

		this.value = value;

	}

	Uniform.prototype.clone = function () {

		return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );

	};

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InstancedBufferGeometry() {

		BufferGeometry.call( this );

		this.type = 'InstancedBufferGeometry';
		this.maxInstancedCount = undefined;

	}

	InstancedBufferGeometry.prototype = Object.assign( Object.create( BufferGeometry.prototype ), {

		constructor: InstancedBufferGeometry,

		isInstancedBufferGeometry: true,

		copy: function ( source ) {

			BufferGeometry.prototype.copy.call( this, source );

			this.maxInstancedCount = source.maxInstancedCount;

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		}

	} );

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InstancedInterleavedBuffer( array, stride, meshPerAttribute ) {

		InterleavedBuffer.call( this, array, stride );

		this.meshPerAttribute = meshPerAttribute || 1;

	}

	InstancedInterleavedBuffer.prototype = Object.assign( Object.create( InterleavedBuffer.prototype ), {

		constructor: InstancedInterleavedBuffer,

		isInstancedInterleavedBuffer: true,

		copy: function ( source ) {

			InterleavedBuffer.prototype.copy.call( this, source );

			this.meshPerAttribute = source.meshPerAttribute;

			return this;

		}

	} );

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InstancedBufferAttribute( array, itemSize, meshPerAttribute ) {

		BufferAttribute.call( this, array, itemSize );

		this.meshPerAttribute = meshPerAttribute || 1;

	}

	InstancedBufferAttribute.prototype = Object.assign( Object.create( BufferAttribute.prototype ), {

		constructor: InstancedBufferAttribute,

		isInstancedBufferAttribute: true,

		copy: function ( source ) {

			BufferAttribute.prototype.copy.call( this, source );

			this.meshPerAttribute = source.meshPerAttribute;

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author bhouston / http://clara.io/
	 * @author stephomi / http://stephaneginier.com/
	 */

	function Raycaster( origin, direction, near, far ) {

		this.ray = new Ray( origin, direction );
		// direction is assumed to be normalized (for accurate distance calculations)

		this.near = near || 0;
		this.far = far || Infinity;

		this.params = {
			Mesh: {},
			Line: {},
			LOD: {},
			Points: { threshold: 1 },
			Sprite: {}
		};

		Object.defineProperties( this.params, {
			PointCloud: {
				get: function () {

					console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );
					return this.Points;

				}
			}
		} );

	}

	function ascSort( a, b ) {

		return a.distance - b.distance;

	}

	function intersectObject( object, raycaster, intersects, recursive ) {

		if ( object.visible === false ) return;

		object.raycast( raycaster, intersects );

		if ( recursive === true ) {

			var children = object.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				intersectObject( children[ i ], raycaster, intersects, true );

			}

		}

	}

	Object.assign( Raycaster.prototype, {

		linePrecision: 1,

		set: function ( origin, direction ) {

			// direction is assumed to be normalized (for accurate distance calculations)

			this.ray.set( origin, direction );

		},

		setFromCamera: function ( coords, camera ) {

			if ( ( camera && camera.isPerspectiveCamera ) ) {

				this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
				this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();

			} else if ( ( camera && camera.isOrthographicCamera ) ) {

				this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera
				this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );

			} else {

				console.error( 'THREE.Raycaster: Unsupported camera type.' );

			}

		},

		intersectObject: function ( object, recursive, optionalTarget ) {

			var intersects = optionalTarget || [];

			intersectObject( object, this, intersects, recursive );

			intersects.sort( ascSort );

			return intersects;

		},

		intersectObjects: function ( objects, recursive, optionalTarget ) {

			var intersects = optionalTarget || [];

			if ( Array.isArray( objects ) === false ) {

				console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );
				return intersects;

			}

			for ( var i = 0, l = objects.length; i < l; i ++ ) {

				intersectObject( objects[ i ], this, intersects, recursive );

			}

			intersects.sort( ascSort );

			return intersects;

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Clock( autoStart ) {

		this.autoStart = ( autoStart !== undefined ) ? autoStart : true;

		this.startTime = 0;
		this.oldTime = 0;
		this.elapsedTime = 0;

		this.running = false;

	}

	Object.assign( Clock.prototype, {

		start: function () {

			this.startTime = ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732

			this.oldTime = this.startTime;
			this.elapsedTime = 0;
			this.running = true;

		},

		stop: function () {

			this.getElapsedTime();
			this.running = false;
			this.autoStart = false;

		},

		getElapsedTime: function () {

			this.getDelta();
			return this.elapsedTime;

		},

		getDelta: function () {

			var diff = 0;

			if ( this.autoStart && ! this.running ) {

				this.start();
				return 0;

			}

			if ( this.running ) {

				var newTime = ( typeof performance === 'undefined' ? Date : performance ).now();

				diff = ( newTime - this.oldTime ) / 1000;
				this.oldTime = newTime;

				this.elapsedTime += diff;

			}

			return diff;

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
	 *
	 * The poles (phi) are at the positive and negative y axis.
	 * The equator starts at positive z.
	 */

	function Spherical( radius, phi, theta ) {

		this.radius = ( radius !== undefined ) ? radius : 1.0;
		this.phi = ( phi !== undefined ) ? phi : 0; // up / down towards top and bottom pole
		this.theta = ( theta !== undefined ) ? theta : 0; // around the equator of the sphere

		return this;

	}

	Object.assign( Spherical.prototype, {

		set: function ( radius, phi, theta ) {

			this.radius = radius;
			this.phi = phi;
			this.theta = theta;

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( other ) {

			this.radius = other.radius;
			this.phi = other.phi;
			this.theta = other.theta;

			return this;

		},

		// restrict phi to be betwee EPS and PI-EPS
		makeSafe: function () {

			var EPS = 0.000001;
			this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );

			return this;

		},

		setFromVector3: function ( vec3 ) {

			this.radius = vec3.length();

			if ( this.radius === 0 ) {

				this.theta = 0;
				this.phi = 0;

			} else {

				this.theta = Math.atan2( vec3.x, vec3.z ); // equator angle around y-up axis
				this.phi = Math.acos( _Math.clamp( vec3.y / this.radius, - 1, 1 ) ); // polar angle

			}

			return this;

		}

	} );

	/**
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
	 *
	 */

	function Cylindrical( radius, theta, y ) {

		this.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane
		this.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
		this.y = ( y !== undefined ) ? y : 0; // height above the x-z plane

		return this;

	}

	Object.assign( Cylindrical.prototype, {

		set: function ( radius, theta, y ) {

			this.radius = radius;
			this.theta = theta;
			this.y = y;

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( other ) {

			this.radius = other.radius;
			this.theta = other.theta;
			this.y = other.y;

			return this;

		},

		setFromVector3: function ( vec3 ) {

			this.radius = Math.sqrt( vec3.x * vec3.x + vec3.z * vec3.z );
			this.theta = Math.atan2( vec3.x, vec3.z );
			this.y = vec3.y;

			return this;

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 */

	function Box2( min, max ) {

		this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );
		this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );

	}

	Object.assign( Box2.prototype, {

		set: function ( min, max ) {

			this.min.copy( min );
			this.max.copy( max );

			return this;

		},

		setFromPoints: function ( points ) {

			this.makeEmpty();

			for ( var i = 0, il = points.length; i < il; i ++ ) {

				this.expandByPoint( points[ i ] );

			}

			return this;

		},

		setFromCenterAndSize: function () {

			var v1 = new Vector2();

			return function setFromCenterAndSize( center, size ) {

				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
				this.min.copy( center ).sub( halfSize );
				this.max.copy( center ).add( halfSize );

				return this;

			};

		}(),

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( box ) {

			this.min.copy( box.min );
			this.max.copy( box.max );

			return this;

		},

		makeEmpty: function () {

			this.min.x = this.min.y = + Infinity;
			this.max.x = this.max.y = - Infinity;

			return this;

		},

		isEmpty: function () {

			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );

		},

		getCenter: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Box2: .getCenter() target is now required' );
				target = new Vector2();

			}

			return this.isEmpty() ? target.set( 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

		},

		getSize: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Box2: .getSize() target is now required' );
				target = new Vector2();

			}

			return this.isEmpty() ? target.set( 0, 0 ) : target.subVectors( this.max, this.min );

		},

		expandByPoint: function ( point ) {

			this.min.min( point );
			this.max.max( point );

			return this;

		},

		expandByVector: function ( vector ) {

			this.min.sub( vector );
			this.max.add( vector );

			return this;

		},

		expandByScalar: function ( scalar ) {

			this.min.addScalar( - scalar );
			this.max.addScalar( scalar );

			return this;

		},

		containsPoint: function ( point ) {

			return point.x < this.min.x || point.x > this.max.x ||
				point.y < this.min.y || point.y > this.max.y ? false : true;

		},

		containsBox: function ( box ) {

			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
				this.min.y <= box.min.y && box.max.y <= this.max.y;

		},

		getParameter: function ( point, target ) {

			// This can potentially have a divide by zero if the box
			// has a size dimension of 0.

			if ( target === undefined ) {

				console.warn( 'THREE.Box2: .getParameter() target is now required' );
				target = new Vector2();

			}

			return target.set(
				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
				( point.y - this.min.y ) / ( this.max.y - this.min.y )
			);

		},

		intersectsBox: function ( box ) {

			// using 4 splitting planes to rule out intersections

			return box.max.x < this.min.x || box.min.x > this.max.x ||
				box.max.y < this.min.y || box.min.y > this.max.y ? false : true;

		},

		clampPoint: function ( point, target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Box2: .clampPoint() target is now required' );
				target = new Vector2();

			}

			return target.copy( point ).clamp( this.min, this.max );

		},

		distanceToPoint: function () {

			var v1 = new Vector2();

			return function distanceToPoint( point ) {

				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
				return clampedPoint.sub( point ).length();

			};

		}(),

		intersect: function ( box ) {

			this.min.max( box.min );
			this.max.min( box.max );

			return this;

		},

		union: function ( box ) {

			this.min.min( box.min );
			this.max.max( box.max );

			return this;

		},

		translate: function ( offset ) {

			this.min.add( offset );
			this.max.add( offset );

			return this;

		},

		equals: function ( box ) {

			return box.min.equals( this.min ) && box.max.equals( this.max );

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 */

	function Line3( start, end ) {

		this.start = ( start !== undefined ) ? start : new Vector3();
		this.end = ( end !== undefined ) ? end : new Vector3();

	}

	Object.assign( Line3.prototype, {

		set: function ( start, end ) {

			this.start.copy( start );
			this.end.copy( end );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( line ) {

			this.start.copy( line.start );
			this.end.copy( line.end );

			return this;

		},

		getCenter: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Line3: .getCenter() target is now required' );
				target = new Vector3();

			}

			return target.addVectors( this.start, this.end ).multiplyScalar( 0.5 );

		},

		delta: function ( target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Line3: .delta() target is now required' );
				target = new Vector3();

			}

			return target.subVectors( this.end, this.start );

		},

		distanceSq: function () {

			return this.start.distanceToSquared( this.end );

		},

		distance: function () {

			return this.start.distanceTo( this.end );

		},

		at: function ( t, target ) {

			if ( target === undefined ) {

				console.warn( 'THREE.Line3: .at() target is now required' );
				target = new Vector3();

			}

			return this.delta( target ).multiplyScalar( t ).add( this.start );

		},

		closestPointToPointParameter: function () {

			var startP = new Vector3();
			var startEnd = new Vector3();

			return function closestPointToPointParameter( point, clampToLine ) {

				startP.subVectors( point, this.start );
				startEnd.subVectors( this.end, this.start );

				var startEnd2 = startEnd.dot( startEnd );
				var startEnd_startP = startEnd.dot( startP );

				var t = startEnd_startP / startEnd2;

				if ( clampToLine ) {

					t = _Math.clamp( t, 0, 1 );

				}

				return t;

			};

		}(),

		closestPointToPoint: function ( point, clampToLine, target ) {

			var t = this.closestPointToPointParameter( point, clampToLine );

			if ( target === undefined ) {

				console.warn( 'THREE.Line3: .closestPointToPoint() target is now required' );
				target = new Vector3();

			}

			return this.delta( target ).multiplyScalar( t ).add( this.start );

		},

		applyMatrix4: function ( matrix ) {

			this.start.applyMatrix4( matrix );
			this.end.applyMatrix4( matrix );

			return this;

		},

		equals: function ( line ) {

			return line.start.equals( this.start ) && line.end.equals( this.end );

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function ImmediateRenderObject( material ) {

		Object3D.call( this );

		this.material = material;
		this.render = function ( /* renderCallback */ ) {};

	}

	ImmediateRenderObject.prototype = Object.create( Object3D.prototype );
	ImmediateRenderObject.prototype.constructor = ImmediateRenderObject;

	ImmediateRenderObject.prototype.isImmediateRenderObject = true;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function VertexNormalsHelper( object, size, hex, linewidth ) {

		this.object = object;

		this.size = ( size !== undefined ) ? size : 1;

		var color = ( hex !== undefined ) ? hex : 0xff0000;

		var width = ( linewidth !== undefined ) ? linewidth : 1;

		//

		var nNormals = 0;

		var objGeometry = this.object.geometry;

		if ( objGeometry && objGeometry.isGeometry ) {

			nNormals = objGeometry.faces.length * 3;

		} else if ( objGeometry && objGeometry.isBufferGeometry ) {

			nNormals = objGeometry.attributes.normal.count;

		}

		//

		var geometry = new BufferGeometry();

		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );

		geometry.addAttribute( 'position', positions );

		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );

		//

		this.matrixAutoUpdate = false;

		this.update();

	}

	VertexNormalsHelper.prototype = Object.create( LineSegments.prototype );
	VertexNormalsHelper.prototype.constructor = VertexNormalsHelper;

	VertexNormalsHelper.prototype.update = ( function () {

		var v1 = new Vector3();
		var v2 = new Vector3();
		var normalMatrix = new Matrix3();

		return function update() {

			var keys = [ 'a', 'b', 'c' ];

			this.object.updateMatrixWorld( true );

			normalMatrix.getNormalMatrix( this.object.matrixWorld );

			var matrixWorld = this.object.matrixWorld;

			var position = this.geometry.attributes.position;

			//

			var objGeometry = this.object.geometry;

			if ( objGeometry && objGeometry.isGeometry ) {

				var vertices = objGeometry.vertices;

				var faces = objGeometry.faces;

				var idx = 0;

				for ( var i = 0, l = faces.length; i < l; i ++ ) {

					var face = faces[ i ];

					for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {

						var vertex = vertices[ face[ keys[ j ] ] ];

						var normal = face.vertexNormals[ j ];

						v1.copy( vertex ).applyMatrix4( matrixWorld );

						v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );

						position.setXYZ( idx, v1.x, v1.y, v1.z );

						idx = idx + 1;

						position.setXYZ( idx, v2.x, v2.y, v2.z );

						idx = idx + 1;

					}

				}

			} else if ( objGeometry && objGeometry.isBufferGeometry ) {

				var objPos = objGeometry.attributes.position;

				var objNorm = objGeometry.attributes.normal;

				var idx = 0;

				// for simplicity, ignore index and drawcalls, and render every normal

				for ( var j = 0, jl = objPos.count; j < jl; j ++ ) {

					v1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );

					v2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );

					v2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );

					position.setXYZ( idx, v1.x, v1.y, v1.z );

					idx = idx + 1;

					position.setXYZ( idx, v2.x, v2.y, v2.z );

					idx = idx + 1;

				}

			}

			position.needsUpdate = true;

		};

	}() );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function SpotLightHelper( light, color ) {

		Object3D.call( this );

		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.color = color;

		var geometry = new BufferGeometry();

		var positions = [
			0, 0, 0, 	0, 0, 1,
			0, 0, 0, 	1, 0, 1,
			0, 0, 0,	- 1, 0, 1,
			0, 0, 0, 	0, 1, 1,
			0, 0, 0, 	0, - 1, 1
		];

		for ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {

			var p1 = ( i / l ) * Math.PI * 2;
			var p2 = ( j / l ) * Math.PI * 2;

			positions.push(
				Math.cos( p1 ), Math.sin( p1 ), 1,
				Math.cos( p2 ), Math.sin( p2 ), 1
			);

		}

		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );

		var material = new LineBasicMaterial( { fog: false } );

		this.cone = new LineSegments( geometry, material );
		this.add( this.cone );

		this.update();

	}

	SpotLightHelper.prototype = Object.create( Object3D.prototype );
	SpotLightHelper.prototype.constructor = SpotLightHelper;

	SpotLightHelper.prototype.dispose = function () {

		this.cone.geometry.dispose();
		this.cone.material.dispose();

	};

	SpotLightHelper.prototype.update = function () {

		var vector = new Vector3();
		var vector2 = new Vector3();

		return function update() {

			this.light.updateMatrixWorld();

			var coneLength = this.light.distance ? this.light.distance : 1000;
			var coneWidth = coneLength * Math.tan( this.light.angle );

			this.cone.scale.set( coneWidth, coneWidth, coneLength );

			vector.setFromMatrixPosition( this.light.matrixWorld );
			vector2.setFromMatrixPosition( this.light.target.matrixWorld );

			this.cone.lookAt( vector2.sub( vector ) );

			if ( this.color !== undefined ) {

				this.cone.material.color.set( this.color );

			} else {

				this.cone.material.color.copy( this.light.color );

			}

		};

	}();

	/**
	 * @author Sean Griffin / http://twitter.com/sgrif
	 * @author Michael Guerrero / http://realitymeltdown.com
	 * @author mrdoob / http://mrdoob.com/
	 * @author ikerr / http://verold.com
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function getBoneList( object ) {

		var boneList = [];

		if ( object && object.isBone ) {

			boneList.push( object );

		}

		for ( var i = 0; i < object.children.length; i ++ ) {

			boneList.push.apply( boneList, getBoneList( object.children[ i ] ) );

		}

		return boneList;

	}

	function SkeletonHelper( object ) {

		var bones = getBoneList( object );

		var geometry = new BufferGeometry();

		var vertices = [];
		var colors = [];

		var color1 = new Color( 0, 0, 1 );
		var color2 = new Color( 0, 1, 0 );

		for ( var i = 0; i < bones.length; i ++ ) {

			var bone = bones[ i ];

			if ( bone.parent && bone.parent.isBone ) {

				vertices.push( 0, 0, 0 );
				vertices.push( 0, 0, 0 );
				colors.push( color1.r, color1.g, color1.b );
				colors.push( color2.r, color2.g, color2.b );

			}

		}

		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		var material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } );

		LineSegments.call( this, geometry, material );

		this.root = object;
		this.bones = bones;

		this.matrix = object.matrixWorld;
		this.matrixAutoUpdate = false;

	}

	SkeletonHelper.prototype = Object.create( LineSegments.prototype );
	SkeletonHelper.prototype.constructor = SkeletonHelper;

	SkeletonHelper.prototype.updateMatrixWorld = function () {

		var vector = new Vector3();

		var boneMatrix = new Matrix4();
		var matrixWorldInv = new Matrix4();

		return function updateMatrixWorld( force ) {

			var bones = this.bones;

			var geometry = this.geometry;
			var position = geometry.getAttribute( 'position' );

			matrixWorldInv.getInverse( this.root.matrixWorld );

			for ( var i = 0, j = 0; i < bones.length; i ++ ) {

				var bone = bones[ i ];

				if ( bone.parent && bone.parent.isBone ) {

					boneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );
					vector.setFromMatrixPosition( boneMatrix );
					position.setXYZ( j, vector.x, vector.y, vector.z );

					boneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );
					vector.setFromMatrixPosition( boneMatrix );
					position.setXYZ( j + 1, vector.x, vector.y, vector.z );

					j += 2;

				}

			}

			geometry.getAttribute( 'position' ).needsUpdate = true;

			Object3D.prototype.updateMatrixWorld.call( this, force );

		};

	}();

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	function PointLightHelper( light, sphereSize, color ) {

		this.light = light;
		this.light.updateMatrixWorld();

		this.color = color;

		var geometry = new SphereBufferGeometry( sphereSize, 4, 2 );
		var material = new MeshBasicMaterial( { wireframe: true, fog: false } );

		Mesh.call( this, geometry, material );

		this.matrix = this.light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.update();


		/*
		var distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 );
		var distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );

		this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
		this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );

		var d = light.distance;

		if ( d === 0.0 ) {

			this.lightDistance.visible = false;

		} else {

			this.lightDistance.scale.set( d, d, d );

		}

		this.add( this.lightDistance );
		*/

	}

	PointLightHelper.prototype = Object.create( Mesh.prototype );
	PointLightHelper.prototype.constructor = PointLightHelper;

	PointLightHelper.prototype.dispose = function () {

		this.geometry.dispose();
		this.material.dispose();

	};

	PointLightHelper.prototype.update = function () {

		if ( this.color !== undefined ) {

			this.material.color.set( this.color );

		} else {

			this.material.color.copy( this.light.color );

		}

		/*
		var d = this.light.distance;

		if ( d === 0.0 ) {

			this.lightDistance.visible = false;

		} else {

			this.lightDistance.visible = true;
			this.lightDistance.scale.set( d, d, d );

		}
		*/

	};

	/**
	 * @author abelnation / http://github.com/abelnation
	 * @author Mugen87 / http://github.com/Mugen87
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function RectAreaLightHelper( light, color ) {

		Object3D.call( this );

		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.color = color;

		var material = new LineBasicMaterial( { fog: false } );

		var geometry = new BufferGeometry();

		geometry.addAttribute( 'position', new BufferAttribute( new Float32Array( 5 * 3 ), 3 ) );

		this.line = new Line( geometry, material );
		this.add( this.line );


		this.update();

	}

	RectAreaLightHelper.prototype = Object.create( Object3D.prototype );
	RectAreaLightHelper.prototype.constructor = RectAreaLightHelper;

	RectAreaLightHelper.prototype.dispose = function () {

		this.children[ 0 ].geometry.dispose();
		this.children[ 0 ].material.dispose();

	};

	RectAreaLightHelper.prototype.update = function () {

		// calculate new dimensions of the helper

		var hx = this.light.width * 0.5;
		var hy = this.light.height * 0.5;

		var position = this.line.geometry.attributes.position;
		var array = position.array;

		// update vertices

		array[ 0 ] = hx; array[ 1 ] = - hy; array[ 2 ] = 0;
		array[ 3 ] = hx; array[ 4 ] = hy; array[ 5 ] = 0;
		array[ 6 ] = - hx; array[ 7 ] = hy; array[ 8 ] = 0;
		array[ 9 ] = - hx; array[ 10 ] = - hy; array[ 11 ] = 0;
		array[ 12 ] = hx; array[ 13 ] = - hy; array[ 14 ] = 0;

		position.needsUpdate = true;

		if ( this.color !== undefined ) {

			this.line.material.color.set( this.color );

		} else {

			this.line.material.color.copy( this.light.color );

		}

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function HemisphereLightHelper( light, size, color ) {

		Object3D.call( this );

		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.color = color;

		var geometry = new OctahedronBufferGeometry( size );
		geometry.rotateY( Math.PI * 0.5 );

		this.material = new MeshBasicMaterial( { wireframe: true, fog: false } );
		if ( this.color === undefined ) this.material.vertexColors = VertexColors;

		var position = geometry.getAttribute( 'position' );
		var colors = new Float32Array( position.count * 3 );

		geometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) );

		this.add( new Mesh( geometry, this.material ) );

		this.update();

	}

	HemisphereLightHelper.prototype = Object.create( Object3D.prototype );
	HemisphereLightHelper.prototype.constructor = HemisphereLightHelper;

	HemisphereLightHelper.prototype.dispose = function () {

		this.children[ 0 ].geometry.dispose();
		this.children[ 0 ].material.dispose();

	};

	HemisphereLightHelper.prototype.update = function () {

		var vector = new Vector3();

		var color1 = new Color();
		var color2 = new Color();

		return function update() {

			var mesh = this.children[ 0 ];

			if ( this.color !== undefined ) {

				this.material.color.set( this.color );

			} else {

				var colors = mesh.geometry.getAttribute( 'color' );

				color1.copy( this.light.color );
				color2.copy( this.light.groundColor );

				for ( var i = 0, l = colors.count; i < l; i ++ ) {

					var color = ( i < ( l / 2 ) ) ? color1 : color2;

					colors.setXYZ( i, color.r, color.g, color.b );

				}

				colors.needsUpdate = true;

			}

			mesh.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );

		};

	}();

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function GridHelper( size, divisions, color1, color2 ) {

		size = size || 10;
		divisions = divisions || 10;
		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );

		var center = divisions / 2;
		var step = size / divisions;
		var halfSize = size / 2;

		var vertices = [], colors = [];

		for ( var i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {

			vertices.push( - halfSize, 0, k, halfSize, 0, k );
			vertices.push( k, 0, - halfSize, k, 0, halfSize );

			var color = i === center ? color1 : color2;

			color.toArray( colors, j ); j += 3;
			color.toArray( colors, j ); j += 3;
			color.toArray( colors, j ); j += 3;
			color.toArray( colors, j ); j += 3;

		}

		var geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		var material = new LineBasicMaterial( { vertexColors: VertexColors } );

		LineSegments.call( this, geometry, material );

	}

	GridHelper.prototype = Object.create( LineSegments.prototype );
	GridHelper.prototype.constructor = GridHelper;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / http://github.com/Mugen87
	 * @author Hectate / http://www.github.com/Hectate
	 */

	function PolarGridHelper( radius, radials, circles, divisions, color1, color2 ) {

		radius = radius || 10;
		radials = radials || 16;
		circles = circles || 8;
		divisions = divisions || 64;
		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );

		var vertices = [];
		var colors = [];

		var x, z;
		var v, i, j, r, color;

		// create the radials

		for ( i = 0; i <= radials; i ++ ) {

			v = ( i / radials ) * ( Math.PI * 2 );

			x = Math.sin( v ) * radius;
			z = Math.cos( v ) * radius;

			vertices.push( 0, 0, 0 );
			vertices.push( x, 0, z );

			color = ( i & 1 ) ? color1 : color2;

			colors.push( color.r, color.g, color.b );
			colors.push( color.r, color.g, color.b );

		}

		// create the circles

		for ( i = 0; i <= circles; i ++ ) {

			color = ( i & 1 ) ? color1 : color2;

			r = radius - ( radius / circles * i );

			for ( j = 0; j < divisions; j ++ ) {

				// first vertex

				v = ( j / divisions ) * ( Math.PI * 2 );

				x = Math.sin( v ) * r;
				z = Math.cos( v ) * r;

				vertices.push( x, 0, z );
				colors.push( color.r, color.g, color.b );

				// second vertex

				v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );

				x = Math.sin( v ) * r;
				z = Math.cos( v ) * r;

				vertices.push( x, 0, z );
				colors.push( color.r, color.g, color.b );

			}

		}

		var geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		var material = new LineBasicMaterial( { vertexColors: VertexColors } );

		LineSegments.call( this, geometry, material );

	}

	PolarGridHelper.prototype = Object.create( LineSegments.prototype );
	PolarGridHelper.prototype.constructor = PolarGridHelper;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function FaceNormalsHelper( object, size, hex, linewidth ) {

		// FaceNormalsHelper only supports THREE.Geometry

		this.object = object;

		this.size = ( size !== undefined ) ? size : 1;

		var color = ( hex !== undefined ) ? hex : 0xffff00;

		var width = ( linewidth !== undefined ) ? linewidth : 1;

		//

		var nNormals = 0;

		var objGeometry = this.object.geometry;

		if ( objGeometry && objGeometry.isGeometry ) {

			nNormals = objGeometry.faces.length;

		} else {

			console.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );

		}

		//

		var geometry = new BufferGeometry();

		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );

		geometry.addAttribute( 'position', positions );

		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );

		//

		this.matrixAutoUpdate = false;
		this.update();

	}

	FaceNormalsHelper.prototype = Object.create( LineSegments.prototype );
	FaceNormalsHelper.prototype.constructor = FaceNormalsHelper;

	FaceNormalsHelper.prototype.update = ( function () {

		var v1 = new Vector3();
		var v2 = new Vector3();
		var normalMatrix = new Matrix3();

		return function update() {

			this.object.updateMatrixWorld( true );

			normalMatrix.getNormalMatrix( this.object.matrixWorld );

			var matrixWorld = this.object.matrixWorld;

			var position = this.geometry.attributes.position;

			//

			var objGeometry = this.object.geometry;

			var vertices = objGeometry.vertices;

			var faces = objGeometry.faces;

			var idx = 0;

			for ( var i = 0, l = faces.length; i < l; i ++ ) {

				var face = faces[ i ];

				var normal = face.normal;

				v1.copy( vertices[ face.a ] )
					.add( vertices[ face.b ] )
					.add( vertices[ face.c ] )
					.divideScalar( 3 )
					.applyMatrix4( matrixWorld );

				v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );

				position.setXYZ( idx, v1.x, v1.y, v1.z );

				idx = idx + 1;

				position.setXYZ( idx, v2.x, v2.y, v2.z );

				idx = idx + 1;

			}

			position.needsUpdate = true;

		};

	}() );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function DirectionalLightHelper( light, size, color ) {

		Object3D.call( this );

		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.color = color;

		if ( size === undefined ) size = 1;

		var geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( [
			- size, size, 0,
			size, size, 0,
			size, - size, 0,
			- size, - size, 0,
			- size, size, 0
		], 3 ) );

		var material = new LineBasicMaterial( { fog: false } );

		this.lightPlane = new Line( geometry, material );
		this.add( this.lightPlane );

		geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );

		this.targetLine = new Line( geometry, material );
		this.add( this.targetLine );

		this.update();

	}

	DirectionalLightHelper.prototype = Object.create( Object3D.prototype );
	DirectionalLightHelper.prototype.constructor = DirectionalLightHelper;

	DirectionalLightHelper.prototype.dispose = function () {

		this.lightPlane.geometry.dispose();
		this.lightPlane.material.dispose();
		this.targetLine.geometry.dispose();
		this.targetLine.material.dispose();

	};

	DirectionalLightHelper.prototype.update = function () {

		var v1 = new Vector3();
		var v2 = new Vector3();
		var v3 = new Vector3();

		return function update() {

			v1.setFromMatrixPosition( this.light.matrixWorld );
			v2.setFromMatrixPosition( this.light.target.matrixWorld );
			v3.subVectors( v2, v1 );

			this.lightPlane.lookAt( v3 );

			if ( this.color !== undefined ) {

				this.lightPlane.material.color.set( this.color );
				this.targetLine.material.color.set( this.color );

			} else {

				this.lightPlane.material.color.copy( this.light.color );
				this.targetLine.material.color.copy( this.light.color );

			}

			this.targetLine.lookAt( v3 );
			this.targetLine.scale.z = v3.length();

		};

	}();

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 *	- shows frustum, line of sight and up of the camera
	 *	- suitable for fast updates
	 * 	- based on frustum visualization in lightgl.js shadowmap example
	 *		http://evanw.github.com/lightgl.js/tests/shadowmap.html
	 */

	function CameraHelper( camera ) {

		var geometry = new BufferGeometry();
		var material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } );

		var vertices = [];
		var colors = [];

		var pointMap = {};

		// colors

		var colorFrustum = new Color( 0xffaa00 );
		var colorCone = new Color( 0xff0000 );
		var colorUp = new Color( 0x00aaff );
		var colorTarget = new Color( 0xffffff );
		var colorCross = new Color( 0x333333 );

		// near

		addLine( 'n1', 'n2', colorFrustum );
		addLine( 'n2', 'n4', colorFrustum );
		addLine( 'n4', 'n3', colorFrustum );
		addLine( 'n3', 'n1', colorFrustum );

		// far

		addLine( 'f1', 'f2', colorFrustum );
		addLine( 'f2', 'f4', colorFrustum );
		addLine( 'f4', 'f3', colorFrustum );
		addLine( 'f3', 'f1', colorFrustum );

		// sides

		addLine( 'n1', 'f1', colorFrustum );
		addLine( 'n2', 'f2', colorFrustum );
		addLine( 'n3', 'f3', colorFrustum );
		addLine( 'n4', 'f4', colorFrustum );

		// cone

		addLine( 'p', 'n1', colorCone );
		addLine( 'p', 'n2', colorCone );
		addLine( 'p', 'n3', colorCone );
		addLine( 'p', 'n4', colorCone );

		// up

		addLine( 'u1', 'u2', colorUp );
		addLine( 'u2', 'u3', colorUp );
		addLine( 'u3', 'u1', colorUp );

		// target

		addLine( 'c', 't', colorTarget );
		addLine( 'p', 'c', colorCross );

		// cross

		addLine( 'cn1', 'cn2', colorCross );
		addLine( 'cn3', 'cn4', colorCross );

		addLine( 'cf1', 'cf2', colorCross );
		addLine( 'cf3', 'cf4', colorCross );

		function addLine( a, b, color ) {

			addPoint( a, color );
			addPoint( b, color );

		}

		function addPoint( id, color ) {

			vertices.push( 0, 0, 0 );
			colors.push( color.r, color.g, color.b );

			if ( pointMap[ id ] === undefined ) {

				pointMap[ id ] = [];

			}

			pointMap[ id ].push( ( vertices.length / 3 ) - 1 );

		}

		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		LineSegments.call( this, geometry, material );

		this.camera = camera;
		if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();

		this.matrix = camera.matrixWorld;
		this.matrixAutoUpdate = false;

		this.pointMap = pointMap;

		this.update();

	}

	CameraHelper.prototype = Object.create( LineSegments.prototype );
	CameraHelper.prototype.constructor = CameraHelper;

	CameraHelper.prototype.update = function () {

		var geometry, pointMap;

		var vector = new Vector3();
		var camera = new Camera();

		function setPoint( point, x, y, z ) {

			vector.set( x, y, z ).unproject( camera );

			var points = pointMap[ point ];

			if ( points !== undefined ) {

				var position = geometry.getAttribute( 'position' );

				for ( var i = 0, l = points.length; i < l; i ++ ) {

					position.setXYZ( points[ i ], vector.x, vector.y, vector.z );

				}

			}

		}

		return function update() {

			geometry = this.geometry;
			pointMap = this.pointMap;

			var w = 1, h = 1;

			// we need just camera projection matrix
			// world matrix must be identity

			camera.projectionMatrix.copy( this.camera.projectionMatrix );

			// center / target

			setPoint( 'c', 0, 0, - 1 );
			setPoint( 't', 0, 0, 1 );

			// near

			setPoint( 'n1', - w, - h, - 1 );
			setPoint( 'n2', w, - h, - 1 );
			setPoint( 'n3', - w, h, - 1 );
			setPoint( 'n4', w, h, - 1 );

			// far

			setPoint( 'f1', - w, - h, 1 );
			setPoint( 'f2', w, - h, 1 );
			setPoint( 'f3', - w, h, 1 );
			setPoint( 'f4', w, h, 1 );

			// up

			setPoint( 'u1', w * 0.7, h * 1.1, - 1 );
			setPoint( 'u2', - w * 0.7, h * 1.1, - 1 );
			setPoint( 'u3', 0, h * 2, - 1 );

			// cross

			setPoint( 'cf1', - w, 0, 1 );
			setPoint( 'cf2', w, 0, 1 );
			setPoint( 'cf3', 0, - h, 1 );
			setPoint( 'cf4', 0, h, 1 );

			setPoint( 'cn1', - w, 0, - 1 );
			setPoint( 'cn2', w, 0, - 1 );
			setPoint( 'cn3', 0, - h, - 1 );
			setPoint( 'cn4', 0, h, - 1 );

			geometry.getAttribute( 'position' ).needsUpdate = true;

		};

	}();

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / http://github.com/Mugen87
	 */

	function BoxHelper( object, color ) {

		this.object = object;

		if ( color === undefined ) color = 0xffff00;

		var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
		var positions = new Float32Array( 8 * 3 );

		var geometry = new BufferGeometry();
		geometry.setIndex( new BufferAttribute( indices, 1 ) );
		geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );

		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );

		this.matrixAutoUpdate = false;

		this.update();

	}

	BoxHelper.prototype = Object.create( LineSegments.prototype );
	BoxHelper.prototype.constructor = BoxHelper;

	BoxHelper.prototype.update = ( function () {

		var box = new Box3();

		return function update( object ) {

			if ( object !== undefined ) {

				console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );

			}

			if ( this.object !== undefined ) {

				box.setFromObject( this.object );

			}

			if ( box.isEmpty() ) return;

			var min = box.min;
			var max = box.max;

			/*
			  5____4
			1/___0/|
			| 6__|_7
			2/___3/

			0: max.x, max.y, max.z
			1: min.x, max.y, max.z
			2: min.x, min.y, max.z
			3: max.x, min.y, max.z
			4: max.x, max.y, min.z
			5: min.x, max.y, min.z
			6: min.x, min.y, min.z
			7: max.x, min.y, min.z
			*/

			var position = this.geometry.attributes.position;
			var array = position.array;

			array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;
			array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;
			array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;
			array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
			array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
			array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
			array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
			array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;

			position.needsUpdate = true;

			this.geometry.computeBoundingSphere();

		};

	} )();

	BoxHelper.prototype.setFromObject = function ( object ) {

		this.object = object;
		this.update();

		return this;

	};

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function Box3Helper( box, hex ) {

		this.type = 'Box3Helper';

		this.box = box;

		var color = ( hex !== undefined ) ? hex : 0xffff00;

		var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );

		var positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ];

		var geometry = new BufferGeometry();

		geometry.setIndex( new BufferAttribute( indices, 1 ) );

		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );

		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );

		this.geometry.computeBoundingSphere();

	}

	Box3Helper.prototype = Object.create( LineSegments.prototype );
	Box3Helper.prototype.constructor = Box3Helper;

	Box3Helper.prototype.updateMatrixWorld = function ( force ) {

		var box = this.box;

		if ( box.isEmpty() ) return;

		box.getCenter( this.position );

		box.getSize( this.scale );

		this.scale.multiplyScalar( 0.5 );

		Object3D.prototype.updateMatrixWorld.call( this, force );

	};

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function PlaneHelper( plane, size, hex ) {

		this.type = 'PlaneHelper';

		this.plane = plane;

		this.size = ( size === undefined ) ? 1 : size;

		var color = ( hex !== undefined ) ? hex : 0xffff00;

		var positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ];

		var geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
		geometry.computeBoundingSphere();

		Line.call( this, geometry, new LineBasicMaterial( { color: color } ) );

		//

		var positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ];

		var geometry2 = new BufferGeometry();
		geometry2.addAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
		geometry2.computeBoundingSphere();

		this.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false } ) ) );

	}

	PlaneHelper.prototype = Object.create( Line.prototype );
	PlaneHelper.prototype.constructor = PlaneHelper;

	PlaneHelper.prototype.updateMatrixWorld = function ( force ) {

		var scale = - this.plane.constant;

		if ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter

		this.scale.set( 0.5 * this.size, 0.5 * this.size, scale );

		this.children[ 0 ].material.side = ( scale < 0 ) ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here

		this.lookAt( this.plane.normal );

		Object3D.prototype.updateMatrixWorld.call( this, force );

	};

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 * @author zz85 / http://github.com/zz85
	 * @author bhouston / http://clara.io
	 *
	 * Creates an arrow for visualizing directions
	 *
	 * Parameters:
	 *  dir - Vector3
	 *  origin - Vector3
	 *  length - Number
	 *  color - color in hex value
	 *  headLength - Number
	 *  headWidth - Number
	 */

	var lineGeometry, coneGeometry;

	function ArrowHelper( dir, origin, length, color, headLength, headWidth ) {

		// dir is assumed to be normalized

		Object3D.call( this );

		if ( color === undefined ) color = 0xffff00;
		if ( length === undefined ) length = 1;
		if ( headLength === undefined ) headLength = 0.2 * length;
		if ( headWidth === undefined ) headWidth = 0.2 * headLength;

		if ( lineGeometry === undefined ) {

			lineGeometry = new BufferGeometry();
			lineGeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );

			coneGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 );
			coneGeometry.translate( 0, - 0.5, 0 );

		}

		this.position.copy( origin );

		this.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) );
		this.line.matrixAutoUpdate = false;
		this.add( this.line );

		this.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) );
		this.cone.matrixAutoUpdate = false;
		this.add( this.cone );

		this.setDirection( dir );
		this.setLength( length, headLength, headWidth );

	}

	ArrowHelper.prototype = Object.create( Object3D.prototype );
	ArrowHelper.prototype.constructor = ArrowHelper;

	ArrowHelper.prototype.setDirection = ( function () {

		var axis = new Vector3();
		var radians;

		return function setDirection( dir ) {

			// dir is assumed to be normalized

			if ( dir.y > 0.99999 ) {

				this.quaternion.set( 0, 0, 0, 1 );

			} else if ( dir.y < - 0.99999 ) {

				this.quaternion.set( 1, 0, 0, 0 );

			} else {

				axis.set( dir.z, 0, - dir.x ).normalize();

				radians = Math.acos( dir.y );

				this.quaternion.setFromAxisAngle( axis, radians );

			}

		};

	}() );

	ArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {

		if ( headLength === undefined ) headLength = 0.2 * length;
		if ( headWidth === undefined ) headWidth = 0.2 * headLength;

		this.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );
		this.line.updateMatrix();

		this.cone.scale.set( headWidth, headLength, headWidth );
		this.cone.position.y = length;
		this.cone.updateMatrix();

	};

	ArrowHelper.prototype.setColor = function ( color ) {

		this.line.material.color.copy( color );
		this.cone.material.color.copy( color );

	};

	/**
	 * @author sroucheray / http://sroucheray.org/
	 * @author mrdoob / http://mrdoob.com/
	 */

	function AxesHelper( size ) {

		size = size || 1;

		var vertices = [
			0, 0, 0,	size, 0, 0,
			0, 0, 0,	0, size, 0,
			0, 0, 0,	0, 0, size
		];

		var colors = [
			1, 0, 0,	1, 0.6, 0,
			0, 1, 0,	0.6, 1, 0,
			0, 0, 1,	0, 0.6, 1
		];

		var geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		var material = new LineBasicMaterial( { vertexColors: VertexColors } );

		LineSegments.call( this, geometry, material );

	}

	AxesHelper.prototype = Object.create( LineSegments.prototype );
	AxesHelper.prototype.constructor = AxesHelper;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Face4( a, b, c, d, normal, color, materialIndex ) {

		console.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );
		return new Face3( a, b, c, normal, color, materialIndex );

	}

	var LineStrip = 0;

	var LinePieces = 1;

	function MeshFaceMaterial( materials ) {

		console.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' );
		return materials;

	}

	function MultiMaterial( materials ) {

		if ( materials === undefined ) materials = [];

		console.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' );
		materials.isMultiMaterial = true;
		materials.materials = materials;
		materials.clone = function () {

			return materials.slice();

		};
		return materials;

	}

	function PointCloud( geometry, material ) {

		console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );
		return new Points( geometry, material );

	}

	function Particle( material ) {

		console.warn( 'THREE.Particle has been renamed to THREE.Sprite.' );
		return new Sprite( material );

	}

	function ParticleSystem( geometry, material ) {

		console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );
		return new Points( geometry, material );

	}

	function PointCloudMaterial( parameters ) {

		console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );
		return new PointsMaterial( parameters );

	}

	function ParticleBasicMaterial( parameters ) {

		console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );
		return new PointsMaterial( parameters );

	}

	function ParticleSystemMaterial( parameters ) {

		console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );
		return new PointsMaterial( parameters );

	}

	function Vertex( x, y, z ) {

		console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );
		return new Vector3( x, y, z );

	}

	//

	function DynamicBufferAttribute( array, itemSize ) {

		console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );
		return new BufferAttribute( array, itemSize ).setDynamic( true );

	}

	function Int8Attribute( array, itemSize ) {

		console.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' );
		return new Int8BufferAttribute( array, itemSize );

	}

	function Uint8Attribute( array, itemSize ) {

		console.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' );
		return new Uint8BufferAttribute( array, itemSize );

	}

	function Uint8ClampedAttribute( array, itemSize ) {

		console.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' );
		return new Uint8ClampedBufferAttribute( array, itemSize );

	}

	function Int16Attribute( array, itemSize ) {

		console.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' );
		return new Int16BufferAttribute( array, itemSize );

	}

	function Uint16Attribute( array, itemSize ) {

		console.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' );
		return new Uint16BufferAttribute( array, itemSize );

	}

	function Int32Attribute( array, itemSize ) {

		console.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' );
		return new Int32BufferAttribute( array, itemSize );

	}

	function Uint32Attribute( array, itemSize ) {

		console.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' );
		return new Uint32BufferAttribute( array, itemSize );

	}

	function Float32Attribute( array, itemSize ) {

		console.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' );
		return new Float32BufferAttribute( array, itemSize );

	}

	function Float64Attribute( array, itemSize ) {

		console.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' );
		return new Float64BufferAttribute( array, itemSize );

	}

	//

	Curve.create = function ( construct, getPoint ) {

		console.log( 'THREE.Curve.create() has been deprecated' );

		construct.prototype = Object.create( Curve.prototype );
		construct.prototype.constructor = construct;
		construct.prototype.getPoint = getPoint;

		return construct;

	};

	//

	Object.assign( CurvePath.prototype, {

		createPointsGeometry: function ( divisions ) {

			console.warn( 'THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );

			// generate geometry from path points (for Line or Points objects)

			var pts = this.getPoints( divisions );
			return this.createGeometry( pts );

		},

		createSpacedPointsGeometry: function ( divisions ) {

			console.warn( 'THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );

			// generate geometry from equidistant sampling along the path

			var pts = this.getSpacedPoints( divisions );
			return this.createGeometry( pts );

		},

		createGeometry: function ( points ) {

			console.warn( 'THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );

			var geometry = new Geometry();

			for ( var i = 0, l = points.length; i < l; i ++ ) {

				var point = points[ i ];
				geometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );

			}

			return geometry;

		}

	} );

	//

	Object.assign( Path.prototype, {

		fromPoints: function ( points ) {

			console.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' );
			this.setFromPoints( points );

		}

	} );

	//

	function ClosedSplineCurve3( points ) {

		console.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );

		CatmullRomCurve3.call( this, points );
		this.type = 'catmullrom';
		this.closed = true;

	}

	ClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );

	//

	function SplineCurve3( points ) {

		console.warn( 'THREE.SplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );

		CatmullRomCurve3.call( this, points );
		this.type = 'catmullrom';

	}

	SplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );

	//

	function Spline( points ) {

		console.warn( 'THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.' );

		CatmullRomCurve3.call( this, points );
		this.type = 'catmullrom';

	}

	Spline.prototype = Object.create( CatmullRomCurve3.prototype );

	Object.assign( Spline.prototype, {

		initFromArray: function ( /* a */ ) {

			console.error( 'THREE.Spline: .initFromArray() has been removed.' );

		},
		getControlPointsArray: function ( /* optionalTarget */ ) {

			console.error( 'THREE.Spline: .getControlPointsArray() has been removed.' );

		},
		reparametrizeByArcLength: function ( /* samplingCoef */ ) {

			console.error( 'THREE.Spline: .reparametrizeByArcLength() has been removed.' );

		}

	} );

	//

	function AxisHelper( size ) {

		console.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' );
		return new AxesHelper( size );

	}

	function BoundingBoxHelper( object, color ) {

		console.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' );
		return new BoxHelper( object, color );

	}

	function EdgesHelper( object, hex ) {

		console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );
		return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );

	}

	GridHelper.prototype.setColors = function () {

		console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );

	};

	SkeletonHelper.prototype.update = function () {

		console.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' );

	};

	function WireframeHelper( object, hex ) {

		console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );
		return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );

	}

	//

	Object.assign( Loader.prototype, {

		extractUrlBase: function ( url ) {

			console.warn( 'THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.' );
			return LoaderUtils.extractUrlBase( url );

		}

	} );

	function XHRLoader( manager ) {

		console.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' );
		return new FileLoader( manager );

	}

	function BinaryTextureLoader( manager ) {

		console.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' );
		return new DataTextureLoader( manager );

	}

	//

	Object.assign( Box2.prototype, {

		center: function ( optionalTarget ) {

			console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );
			return this.getCenter( optionalTarget );

		},
		empty: function () {

			console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );
			return this.isEmpty();

		},
		isIntersectionBox: function ( box ) {

			console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );
			return this.intersectsBox( box );

		},
		size: function ( optionalTarget ) {

			console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );
			return this.getSize( optionalTarget );

		}
	} );

	Object.assign( Box3.prototype, {

		center: function ( optionalTarget ) {

			console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );
			return this.getCenter( optionalTarget );

		},
		empty: function () {

			console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );
			return this.isEmpty();

		},
		isIntersectionBox: function ( box ) {

			console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );
			return this.intersectsBox( box );

		},
		isIntersectionSphere: function ( sphere ) {

			console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
			return this.intersectsSphere( sphere );

		},
		size: function ( optionalTarget ) {

			console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );
			return this.getSize( optionalTarget );

		}
	} );

	Line3.prototype.center = function ( optionalTarget ) {

		console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );
		return this.getCenter( optionalTarget );

	};

	Object.assign( _Math, {

		random16: function () {

			console.warn( 'THREE.Math: .random16() has been deprecated. Use Math.random() instead.' );
			return Math.random();

		},

		nearestPowerOfTwo: function ( value ) {

			console.warn( 'THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().' );
			return _Math.floorPowerOfTwo( value );

		},

		nextPowerOfTwo: function ( value ) {

			console.warn( 'THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().' );
			return _Math.ceilPowerOfTwo( value );

		}

	} );

	Object.assign( Matrix3.prototype, {

		flattenToArrayOffset: function ( array, offset ) {

			console.warn( "THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
			return this.toArray( array, offset );

		},
		multiplyVector3: function ( vector ) {

			console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );
			return vector.applyMatrix3( this );

		},
		multiplyVector3Array: function ( /* a */ ) {

			console.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' );

		},
		applyToBuffer: function ( buffer /*, offset, length */ ) {

			console.warn( 'THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
			return this.applyToBufferAttribute( buffer );

		},
		applyToVector3Array: function ( /* array, offset, length */ ) {

			console.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' );

		}

	} );

	Object.assign( Matrix4.prototype, {

		extractPosition: function ( m ) {

			console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );
			return this.copyPosition( m );

		},
		flattenToArrayOffset: function ( array, offset ) {

			console.warn( "THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
			return this.toArray( array, offset );

		},
		getPosition: function () {

			var v1;

			return function getPosition() {

				if ( v1 === undefined ) v1 = new Vector3();
				console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );
				return v1.setFromMatrixColumn( this, 3 );

			};

		}(),
		setRotationFromQuaternion: function ( q ) {

			console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );
			return this.makeRotationFromQuaternion( q );

		},
		multiplyToArray: function () {

			console.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' );

		},
		multiplyVector3: function ( vector ) {

			console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
			return vector.applyMatrix4( this );

		},
		multiplyVector4: function ( vector ) {

			console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
			return vector.applyMatrix4( this );

		},
		multiplyVector3Array: function ( /* a */ ) {

			console.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' );

		},
		rotateAxis: function ( v ) {

			console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );
			v.transformDirection( this );

		},
		crossVector: function ( vector ) {

			console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
			return vector.applyMatrix4( this );

		},
		translate: function () {

			console.error( 'THREE.Matrix4: .translate() has been removed.' );

		},
		rotateX: function () {

			console.error( 'THREE.Matrix4: .rotateX() has been removed.' );

		},
		rotateY: function () {

			console.error( 'THREE.Matrix4: .rotateY() has been removed.' );

		},
		rotateZ: function () {

			console.error( 'THREE.Matrix4: .rotateZ() has been removed.' );

		},
		rotateByAxis: function () {

			console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );

		},
		applyToBuffer: function ( buffer /*, offset, length */ ) {

			console.warn( 'THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
			return this.applyToBufferAttribute( buffer );

		},
		applyToVector3Array: function ( /* array, offset, length */ ) {

			console.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' );

		},
		makeFrustum: function ( left, right, bottom, top, near, far ) {

			console.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' );
			return this.makePerspective( left, right, top, bottom, near, far );

		}

	} );

	Plane.prototype.isIntersectionLine = function ( line ) {

		console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );
		return this.intersectsLine( line );

	};

	Quaternion.prototype.multiplyVector3 = function ( vector ) {

		console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
		return vector.applyQuaternion( this );

	};

	Object.assign( Ray.prototype, {

		isIntersectionBox: function ( box ) {

			console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );
			return this.intersectsBox( box );

		},
		isIntersectionPlane: function ( plane ) {

			console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );
			return this.intersectsPlane( plane );

		},
		isIntersectionSphere: function ( sphere ) {

			console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
			return this.intersectsSphere( sphere );

		}

	} );

	Object.assign( Triangle.prototype, {

		area: function () {

			console.warn( 'THREE.Triangle: .area() has been renamed to .getArea().' );
			return this.getArea();

		},
		barycoordFromPoint: function ( point, target ) {

			console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );
			return this.getBarycoord( point, target );

		},
		midpoint: function ( target ) {

			console.warn( 'THREE.Triangle: .midpoint() has been renamed to .getMidpoint().' );
			return this.getMidpoint( target );

		},
		normal: function ( target ) {

			console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );
			return this.getNormal( target );

		},
		plane: function ( target ) {

			console.warn( 'THREE.Triangle: .plane() has been renamed to .getPlane().' );
			return this.getPlane( target );

		}

	} );

	Object.assign( Triangle, {

		barycoordFromPoint: function ( point, a, b, c, target ) {

			console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );
			return Triangle.getBarycoord( point, a, b, c, target );

		},
		normal: function ( a, b, c, target ) {

			console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );
			return Triangle.getNormal( a, b, c, target );

		}

	} );

	Object.assign( Shape.prototype, {

		extractAllPoints: function ( divisions ) {

			console.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' );
			return this.extractPoints( divisions );

		},
		extrude: function ( options ) {

			console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );
			return new ExtrudeGeometry( this, options );

		},
		makeGeometry: function ( options ) {

			console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );
			return new ShapeGeometry( this, options );

		}

	} );

	Object.assign( Vector2.prototype, {

		fromAttribute: function ( attribute, index, offset ) {

			console.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' );
			return this.fromBufferAttribute( attribute, index, offset );

		},
		distanceToManhattan: function ( v ) {

			console.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
			return this.manhattanDistanceTo( v );

		},
		lengthManhattan: function () {

			console.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' );
			return this.manhattanLength();

		}

	} );

	Object.assign( Vector3.prototype, {

		setEulerFromRotationMatrix: function () {

			console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );

		},
		setEulerFromQuaternion: function () {

			console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );

		},
		getPositionFromMatrix: function ( m ) {

			console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );
			return this.setFromMatrixPosition( m );

		},
		getScaleFromMatrix: function ( m ) {

			console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );
			return this.setFromMatrixScale( m );

		},
		getColumnFromMatrix: function ( index, matrix ) {

			console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );
			return this.setFromMatrixColumn( matrix, index );

		},
		applyProjection: function ( m ) {

			console.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' );
			return this.applyMatrix4( m );

		},
		fromAttribute: function ( attribute, index, offset ) {

			console.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' );
			return this.fromBufferAttribute( attribute, index, offset );

		},
		distanceToManhattan: function ( v ) {

			console.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
			return this.manhattanDistanceTo( v );

		},
		lengthManhattan: function () {

			console.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' );
			return this.manhattanLength();

		}

	} );

	Object.assign( Vector4.prototype, {

		fromAttribute: function ( attribute, index, offset ) {

			console.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' );
			return this.fromBufferAttribute( attribute, index, offset );

		},
		lengthManhattan: function () {

			console.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' );
			return this.manhattanLength();

		}

	} );

	//

	Object.assign( Geometry.prototype, {

		computeTangents: function () {

			console.error( 'THREE.Geometry: .computeTangents() has been removed.' );

		},
		computeLineDistances: function () {

			console.error( 'THREE.Geometry: .computeLineDistances() has been removed. Use THREE.Line.computeLineDistances() instead.' );

		}

	} );

	Object.assign( Object3D.prototype, {

		getChildByName: function ( name ) {

			console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );
			return this.getObjectByName( name );

		},
		renderDepth: function () {

			console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );

		},
		translate: function ( distance, axis ) {

			console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );
			return this.translateOnAxis( axis, distance );

		},
		getWorldRotation: function () {

			console.error( 'THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.' );

		}

	} );

	Object.defineProperties( Object3D.prototype, {

		eulerOrder: {
			get: function () {

				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
				return this.rotation.order;

			},
			set: function ( value ) {

				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
				this.rotation.order = value;

			}
		},
		useQuaternion: {
			get: function () {

				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );

			},
			set: function () {

				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );

			}
		}

	} );

	Object.defineProperties( LOD.prototype, {

		objects: {
			get: function () {

				console.warn( 'THREE.LOD: .objects has been renamed to .levels.' );
				return this.levels;

			}
		}

	} );

	Object.defineProperty( Skeleton.prototype, 'useVertexTexture', {

		get: function () {

			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );

		},
		set: function () {

			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );

		}

	} );

	Object.defineProperty( Curve.prototype, '__arcLengthDivisions', {

		get: function () {

			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
			return this.arcLengthDivisions;

		},
		set: function ( value ) {

			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
			this.arcLengthDivisions = value;

		}

	} );

	//

	PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {

		console.warn( "THREE.PerspectiveCamera.setLens is deprecated. " +
				"Use .setFocalLength and .filmGauge for a photographic setup." );

		if ( filmGauge !== undefined ) this.filmGauge = filmGauge;
		this.setFocalLength( focalLength );

	};

	//

	Object.defineProperties( Light.prototype, {
		onlyShadow: {
			set: function () {

				console.warn( 'THREE.Light: .onlyShadow has been removed.' );

			}
		},
		shadowCameraFov: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );
				this.shadow.camera.fov = value;

			}
		},
		shadowCameraLeft: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );
				this.shadow.camera.left = value;

			}
		},
		shadowCameraRight: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );
				this.shadow.camera.right = value;

			}
		},
		shadowCameraTop: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );
				this.shadow.camera.top = value;

			}
		},
		shadowCameraBottom: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );
				this.shadow.camera.bottom = value;

			}
		},
		shadowCameraNear: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );
				this.shadow.camera.near = value;

			}
		},
		shadowCameraFar: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );
				this.shadow.camera.far = value;

			}
		},
		shadowCameraVisible: {
			set: function () {

				console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );

			}
		},
		shadowBias: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );
				this.shadow.bias = value;

			}
		},
		shadowDarkness: {
			set: function () {

				console.warn( 'THREE.Light: .shadowDarkness has been removed.' );

			}
		},
		shadowMapWidth: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );
				this.shadow.mapSize.width = value;

			}
		},
		shadowMapHeight: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );
				this.shadow.mapSize.height = value;

			}
		}
	} );

	//

	Object.defineProperties( BufferAttribute.prototype, {

		length: {
			get: function () {

				console.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' );
				return this.array.length;

			}
		},
		copyIndicesArray: function ( /* indices */ ) {

			console.error( 'THREE.BufferAttribute: .copyIndicesArray() has been removed.' );

		}

	} );

	Object.assign( BufferGeometry.prototype, {

		addIndex: function ( index ) {

			console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );
			this.setIndex( index );

		},
		addDrawCall: function ( start, count, indexOffset ) {

			if ( indexOffset !== undefined ) {

				console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );

			}
			console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );
			this.addGroup( start, count );

		},
		clearDrawCalls: function () {

			console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );
			this.clearGroups();

		},
		computeTangents: function () {

			console.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );

		},
		computeOffsets: function () {

			console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );

		}

	} );

	Object.defineProperties( BufferGeometry.prototype, {

		drawcalls: {
			get: function () {

				console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );
				return this.groups;

			}
		},
		offsets: {
			get: function () {

				console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );
				return this.groups;

			}
		}

	} );

	//

	Object.assign( ExtrudeBufferGeometry.prototype, {

		getArrays: function () {

			console.error( 'THREE.ExtrudeBufferGeometry: .getArrays() has been removed.' );

		},

		addShapeList: function () {

			console.error( 'THREE.ExtrudeBufferGeometry: .addShapeList() has been removed.' );

		},

		addShape: function () {

			console.error( 'THREE.ExtrudeBufferGeometry: .addShape() has been removed.' );

		}

	} );

	//

	Object.defineProperties( Uniform.prototype, {

		dynamic: {
			set: function () {

				console.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' );

			}
		},
		onUpdate: {
			value: function () {

				console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );
				return this;

			}
		}

	} );

	//

	Object.defineProperties( Material.prototype, {

		wrapAround: {
			get: function () {

				console.warn( 'THREE.Material: .wrapAround has been removed.' );

			},
			set: function () {

				console.warn( 'THREE.Material: .wrapAround has been removed.' );

			}
		},
		wrapRGB: {
			get: function () {

				console.warn( 'THREE.Material: .wrapRGB has been removed.' );
				return new Color();

			}
		},

		shading: {
			get: function () {

				console.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );

			},
			set: function ( value ) {

				console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
				this.flatShading = ( value === FlatShading );

			}
		}

	} );

	Object.defineProperties( MeshPhongMaterial.prototype, {

		metal: {
			get: function () {

				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );
				return false;

			},
			set: function () {

				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );

			}
		}

	} );

	Object.defineProperties( ShaderMaterial.prototype, {

		derivatives: {
			get: function () {

				console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
				return this.extensions.derivatives;

			},
			set: function ( value ) {

				console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
				this.extensions.derivatives = value;

			}
		}

	} );

	//

	Object.assign( WebGLRenderer.prototype, {

		animate: function ( callback ) {

			console.warn( 'THREE.WebGLRenderer: .animate() is now .setAnimationLoop().' );
			this.setAnimationLoop( callback );

		},

		getCurrentRenderTarget: function () {

			console.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' );
			return this.getRenderTarget();

		},

		getMaxAnisotropy: function () {

			console.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' );
			return this.capabilities.getMaxAnisotropy();

		},

		getPrecision: function () {

			console.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' );
			return this.capabilities.precision;

		},

		resetGLState: function () {

			console.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' );
			return this.state.reset();

		},

		supportsFloatTextures: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' );
			return this.extensions.get( 'OES_texture_float' );

		},
		supportsHalfFloatTextures: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' );
			return this.extensions.get( 'OES_texture_half_float' );

		},
		supportsStandardDerivatives: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' );
			return this.extensions.get( 'OES_standard_derivatives' );

		},
		supportsCompressedTextureS3TC: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' );
			return this.extensions.get( 'WEBGL_compressed_texture_s3tc' );

		},
		supportsCompressedTexturePVRTC: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' );
			return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );

		},
		supportsBlendMinMax: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' );
			return this.extensions.get( 'EXT_blend_minmax' );

		},
		supportsVertexTextures: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' );
			return this.capabilities.vertexTextures;

		},
		supportsInstancedArrays: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' );
			return this.extensions.get( 'ANGLE_instanced_arrays' );

		},
		enableScissorTest: function ( boolean ) {

			console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );
			this.setScissorTest( boolean );

		},
		initMaterial: function () {

			console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );

		},
		addPrePlugin: function () {

			console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );

		},
		addPostPlugin: function () {

			console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );

		},
		updateShadowMap: function () {

			console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );

		},
		setFaceCulling: function () {

			console.warn( 'THREE.WebGLRenderer: .setFaceCulling() has been removed.' );

		}

	} );

	Object.defineProperties( WebGLRenderer.prototype, {

		shadowMapEnabled: {
			get: function () {

				return this.shadowMap.enabled;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );
				this.shadowMap.enabled = value;

			}
		},
		shadowMapType: {
			get: function () {

				return this.shadowMap.type;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );
				this.shadowMap.type = value;

			}
		},
		shadowMapCullFace: {
			get: function () {

				console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );
				return undefined;

			},
			set: function ( /* value */ ) {

				console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );

			}
		}
	} );

	Object.defineProperties( WebGLShadowMap.prototype, {

		cullFace: {
			get: function () {

				console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );
				return undefined;

			},
			set: function ( /* cullFace */ ) {

				console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );

			}
		},
		renderReverseSided: {
			get: function () {

				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );
				return undefined;

			},
			set: function () {

				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );

			}
		},
		renderSingleSided: {
			get: function () {

				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );
				return undefined;

			},
			set: function () {

				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );

			}
		}

	} );

	//

	Object.defineProperties( WebGLRenderTarget.prototype, {

		wrapS: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
				return this.texture.wrapS;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
				this.texture.wrapS = value;

			}
		},
		wrapT: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
				return this.texture.wrapT;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
				this.texture.wrapT = value;

			}
		},
		magFilter: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
				return this.texture.magFilter;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
				this.texture.magFilter = value;

			}
		},
		minFilter: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
				return this.texture.minFilter;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
				this.texture.minFilter = value;

			}
		},
		anisotropy: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
				return this.texture.anisotropy;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
				this.texture.anisotropy = value;

			}
		},
		offset: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
				return this.texture.offset;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
				this.texture.offset = value;

			}
		},
		repeat: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
				return this.texture.repeat;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
				this.texture.repeat = value;

			}
		},
		format: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
				return this.texture.format;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
				this.texture.format = value;

			}
		},
		type: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
				return this.texture.type;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
				this.texture.type = value;

			}
		},
		generateMipmaps: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
				return this.texture.generateMipmaps;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
				this.texture.generateMipmaps = value;

			}
		}

	} );

	//

	Object.defineProperties( WebVRManager.prototype, {

		standing: {
			set: function ( /* value */ ) {

				console.warn( 'THREE.WebVRManager: .standing has been removed.' );

			}
		}

	} );

	//

	Audio.prototype.load = function ( file ) {

		console.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' );
		var scope = this;
		var audioLoader = new AudioLoader();
		audioLoader.load( file, function ( buffer ) {

			scope.setBuffer( buffer );

		} );
		return this;

	};

	AudioAnalyser.prototype.getData = function () {

		console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );
		return this.getFrequencyData();

	};

	//

	CubeCamera.prototype.updateCubeMap = function ( renderer, scene ) {

		console.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' );
		return this.update( renderer, scene );

	};

	//

	var GeometryUtils = {

		merge: function ( geometry1, geometry2, materialIndexOffset ) {

			console.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );
			var matrix;

			if ( geometry2.isMesh ) {

				geometry2.matrixAutoUpdate && geometry2.updateMatrix();

				matrix = geometry2.matrix;
				geometry2 = geometry2.geometry;

			}

			geometry1.merge( geometry2, matrix, materialIndexOffset );

		},

		center: function ( geometry ) {

			console.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );
			return geometry.center();

		}

	};

	ImageUtils.crossOrigin = undefined;

	ImageUtils.loadTexture = function ( url, mapping, onLoad, onError ) {

		console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );

		var loader = new TextureLoader();
		loader.setCrossOrigin( this.crossOrigin );

		var texture = loader.load( url, onLoad, undefined, onError );

		if ( mapping ) texture.mapping = mapping;

		return texture;

	};

	ImageUtils.loadTextureCube = function ( urls, mapping, onLoad, onError ) {

		console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );

		var loader = new CubeTextureLoader();
		loader.setCrossOrigin( this.crossOrigin );

		var texture = loader.load( urls, onLoad, undefined, onError );

		if ( mapping ) texture.mapping = mapping;

		return texture;

	};

	ImageUtils.loadCompressedTexture = function () {

		console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );

	};

	ImageUtils.loadCompressedTextureCube = function () {

		console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );

	};

	//

	function Projector() {

		console.error( 'THREE.Projector has been moved to /examples/js/renderers/Projector.js.' );

		this.projectVector = function ( vector, camera ) {

			console.warn( 'THREE.Projector: .projectVector() is now vector.project().' );
			vector.project( camera );

		};

		this.unprojectVector = function ( vector, camera ) {

			console.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );
			vector.unproject( camera );

		};

		this.pickingRay = function () {

			console.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );

		};

	}

	//

	function CanvasRenderer() {

		console.error( 'THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js' );

		this.domElement = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
		this.clear = function () {};
		this.render = function () {};
		this.setClearColor = function () {};
		this.setSize = function () {};

	}

	//

	var SceneUtils = {

		createMultiMaterialObject: function ( /* geometry, materials */ ) {

			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );

		},

		detach: function ( /* child, parent, scene */ ) {

			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );

		},

		attach: function ( /* child, scene, parent */ ) {

			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );

		}

	};

	//

	function LensFlare() {

		console.error( 'THREE.LensFlare has been moved to /examples/js/objects/Lensflare.js' );

	}

	exports.WebGLRenderTargetCube = WebGLRenderTargetCube;
	exports.WebGLRenderTarget = WebGLRenderTarget;
	exports.WebGLRenderer = WebGLRenderer;
	exports.ShaderLib = ShaderLib;
	exports.UniformsLib = UniformsLib;
	exports.UniformsUtils = UniformsUtils;
	exports.ShaderChunk = ShaderChunk;
	exports.FogExp2 = FogExp2;
	exports.Fog = Fog;
	exports.Scene = Scene;
	exports.Sprite = Sprite;
	exports.LOD = LOD;
	exports.SkinnedMesh = SkinnedMesh;
	exports.Skeleton = Skeleton;
	exports.Bone = Bone;
	exports.Mesh = Mesh;
	exports.LineSegments = LineSegments;
	exports.LineLoop = LineLoop;
	exports.Line = Line;
	exports.Points = Points;
	exports.Group = Group;
	exports.VideoTexture = VideoTexture;
	exports.DataTexture = DataTexture;
	exports.CompressedTexture = CompressedTexture;
	exports.CubeTexture = CubeTexture;
	exports.CanvasTexture = CanvasTexture;
	exports.DepthTexture = DepthTexture;
	exports.Texture = Texture;
	exports.CompressedTextureLoader = CompressedTextureLoader;
	exports.DataTextureLoader = DataTextureLoader;
	exports.CubeTextureLoader = CubeTextureLoader;
	exports.TextureLoader = TextureLoader;
	exports.ObjectLoader = ObjectLoader;
	exports.MaterialLoader = MaterialLoader;
	exports.BufferGeometryLoader = BufferGeometryLoader;
	exports.DefaultLoadingManager = DefaultLoadingManager;
	exports.LoadingManager = LoadingManager;
	exports.JSONLoader = JSONLoader;
	exports.ImageLoader = ImageLoader;
	exports.ImageBitmapLoader = ImageBitmapLoader;
	exports.FontLoader = FontLoader;
	exports.FileLoader = FileLoader;
	exports.Loader = Loader;
	exports.LoaderUtils = LoaderUtils;
	exports.Cache = Cache;
	exports.AudioLoader = AudioLoader;
	exports.SpotLightShadow = SpotLightShadow;
	exports.SpotLight = SpotLight;
	exports.PointLight = PointLight;
	exports.RectAreaLight = RectAreaLight;
	exports.HemisphereLight = HemisphereLight;
	exports.DirectionalLightShadow = DirectionalLightShadow;
	exports.DirectionalLight = DirectionalLight;
	exports.AmbientLight = AmbientLight;
	exports.LightShadow = LightShadow;
	exports.Light = Light;
	exports.StereoCamera = StereoCamera;
	exports.PerspectiveCamera = PerspectiveCamera;
	exports.OrthographicCamera = OrthographicCamera;
	exports.CubeCamera = CubeCamera;
	exports.ArrayCamera = ArrayCamera;
	exports.Camera = Camera;
	exports.AudioListener = AudioListener;
	exports.PositionalAudio = PositionalAudio;
	exports.AudioContext = AudioContext;
	exports.AudioAnalyser = AudioAnalyser;
	exports.Audio = Audio;
	exports.VectorKeyframeTrack = VectorKeyframeTrack;
	exports.StringKeyframeTrack = StringKeyframeTrack;
	exports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;
	exports.NumberKeyframeTrack = NumberKeyframeTrack;
	exports.ColorKeyframeTrack = ColorKeyframeTrack;
	exports.BooleanKeyframeTrack = BooleanKeyframeTrack;
	exports.PropertyMixer = PropertyMixer;
	exports.PropertyBinding = PropertyBinding;
	exports.KeyframeTrack = KeyframeTrack;
	exports.AnimationUtils = AnimationUtils;
	exports.AnimationObjectGroup = AnimationObjectGroup;
	exports.AnimationMixer = AnimationMixer;
	exports.AnimationClip = AnimationClip;
	exports.Uniform = Uniform;
	exports.InstancedBufferGeometry = InstancedBufferGeometry;
	exports.BufferGeometry = BufferGeometry;
	exports.Geometry = Geometry;
	exports.InterleavedBufferAttribute = InterleavedBufferAttribute;
	exports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;
	exports.InterleavedBuffer = InterleavedBuffer;
	exports.InstancedBufferAttribute = InstancedBufferAttribute;
	exports.Face3 = Face3;
	exports.Object3D = Object3D;
	exports.Raycaster = Raycaster;
	exports.Layers = Layers;
	exports.EventDispatcher = EventDispatcher;
	exports.Clock = Clock;
	exports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;
	exports.LinearInterpolant = LinearInterpolant;
	exports.DiscreteInterpolant = DiscreteInterpolant;
	exports.CubicInterpolant = CubicInterpolant;
	exports.Interpolant = Interpolant;
	exports.Triangle = Triangle;
	exports.Math = _Math;
	exports.Spherical = Spherical;
	exports.Cylindrical = Cylindrical;
	exports.Plane = Plane;
	exports.Frustum = Frustum;
	exports.Sphere = Sphere;
	exports.Ray = Ray;
	exports.Matrix4 = Matrix4;
	exports.Matrix3 = Matrix3;
	exports.Box3 = Box3;
	exports.Box2 = Box2;
	exports.Line3 = Line3;
	exports.Euler = Euler;
	exports.Vector4 = Vector4;
	exports.Vector3 = Vector3;
	exports.Vector2 = Vector2;
	exports.Quaternion = Quaternion;
	exports.Color = Color;
	exports.ImmediateRenderObject = ImmediateRenderObject;
	exports.VertexNormalsHelper = VertexNormalsHelper;
	exports.SpotLightHelper = SpotLightHelper;
	exports.SkeletonHelper = SkeletonHelper;
	exports.PointLightHelper = PointLightHelper;
	exports.RectAreaLightHelper = RectAreaLightHelper;
	exports.HemisphereLightHelper = HemisphereLightHelper;
	exports.GridHelper = GridHelper;
	exports.PolarGridHelper = PolarGridHelper;
	exports.FaceNormalsHelper = FaceNormalsHelper;
	exports.DirectionalLightHelper = DirectionalLightHelper;
	exports.CameraHelper = CameraHelper;
	exports.BoxHelper = BoxHelper;
	exports.Box3Helper = Box3Helper;
	exports.PlaneHelper = PlaneHelper;
	exports.ArrowHelper = ArrowHelper;
	exports.AxesHelper = AxesHelper;
	exports.Shape = Shape;
	exports.Path = Path;
	exports.ShapePath = ShapePath;
	exports.Font = Font;
	exports.CurvePath = CurvePath;
	exports.Curve = Curve;
	exports.ImageUtils = ImageUtils;
	exports.ShapeUtils = ShapeUtils;
	exports.WebGLUtils = WebGLUtils;
	exports.WireframeGeometry = WireframeGeometry;
	exports.ParametricGeometry = ParametricGeometry;
	exports.ParametricBufferGeometry = ParametricBufferGeometry;
	exports.TetrahedronGeometry = TetrahedronGeometry;
	exports.TetrahedronBufferGeometry = TetrahedronBufferGeometry;
	exports.OctahedronGeometry = OctahedronGeometry;
	exports.OctahedronBufferGeometry = OctahedronBufferGeometry;
	exports.IcosahedronGeometry = IcosahedronGeometry;
	exports.IcosahedronBufferGeometry = IcosahedronBufferGeometry;
	exports.DodecahedronGeometry = DodecahedronGeometry;
	exports.DodecahedronBufferGeometry = DodecahedronBufferGeometry;
	exports.PolyhedronGeometry = PolyhedronGeometry;
	exports.PolyhedronBufferGeometry = PolyhedronBufferGeometry;
	exports.TubeGeometry = TubeGeometry;
	exports.TubeBufferGeometry = TubeBufferGeometry;
	exports.TorusKnotGeometry = TorusKnotGeometry;
	exports.TorusKnotBufferGeometry = TorusKnotBufferGeometry;
	exports.TorusGeometry = TorusGeometry;
	exports.TorusBufferGeometry = TorusBufferGeometry;
	exports.TextGeometry = TextGeometry;
	exports.TextBufferGeometry = TextBufferGeometry;
	exports.SphereGeometry = SphereGeometry;
	exports.SphereBufferGeometry = SphereBufferGeometry;
	exports.RingGeometry = RingGeometry;
	exports.RingBufferGeometry = RingBufferGeometry;
	exports.PlaneGeometry = PlaneGeometry;
	exports.PlaneBufferGeometry = PlaneBufferGeometry;
	exports.LatheGeometry = LatheGeometry;
	exports.LatheBufferGeometry = LatheBufferGeometry;
	exports.ShapeGeometry = ShapeGeometry;
	exports.ShapeBufferGeometry = ShapeBufferGeometry;
	exports.ExtrudeGeometry = ExtrudeGeometry;
	exports.ExtrudeBufferGeometry = ExtrudeBufferGeometry;
	exports.EdgesGeometry = EdgesGeometry;
	exports.ConeGeometry = ConeGeometry;
	exports.ConeBufferGeometry = ConeBufferGeometry;
	exports.CylinderGeometry = CylinderGeometry;
	exports.CylinderBufferGeometry = CylinderBufferGeometry;
	exports.CircleGeometry = CircleGeometry;
	exports.CircleBufferGeometry = CircleBufferGeometry;
	exports.BoxGeometry = BoxGeometry;
	exports.BoxBufferGeometry = BoxBufferGeometry;
	exports.ShadowMaterial = ShadowMaterial;
	exports.SpriteMaterial = SpriteMaterial;
	exports.RawShaderMaterial = RawShaderMaterial;
	exports.ShaderMaterial = ShaderMaterial;
	exports.PointsMaterial = PointsMaterial;
	exports.MeshPhysicalMaterial = MeshPhysicalMaterial;
	exports.MeshStandardMaterial = MeshStandardMaterial;
	exports.MeshPhongMaterial = MeshPhongMaterial;
	exports.MeshToonMaterial = MeshToonMaterial;
	exports.MeshNormalMaterial = MeshNormalMaterial;
	exports.MeshLambertMaterial = MeshLambertMaterial;
	exports.MeshDepthMaterial = MeshDepthMaterial;
	exports.MeshDistanceMaterial = MeshDistanceMaterial;
	exports.MeshBasicMaterial = MeshBasicMaterial;
	exports.LineDashedMaterial = LineDashedMaterial;
	exports.LineBasicMaterial = LineBasicMaterial;
	exports.Material = Material;
	exports.Float64BufferAttribute = Float64BufferAttribute;
	exports.Float32BufferAttribute = Float32BufferAttribute;
	exports.Uint32BufferAttribute = Uint32BufferAttribute;
	exports.Int32BufferAttribute = Int32BufferAttribute;
	exports.Uint16BufferAttribute = Uint16BufferAttribute;
	exports.Int16BufferAttribute = Int16BufferAttribute;
	exports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;
	exports.Uint8BufferAttribute = Uint8BufferAttribute;
	exports.Int8BufferAttribute = Int8BufferAttribute;
	exports.BufferAttribute = BufferAttribute;
	exports.ArcCurve = ArcCurve;
	exports.CatmullRomCurve3 = CatmullRomCurve3;
	exports.CubicBezierCurve = CubicBezierCurve;
	exports.CubicBezierCurve3 = CubicBezierCurve3;
	exports.EllipseCurve = EllipseCurve;
	exports.LineCurve = LineCurve;
	exports.LineCurve3 = LineCurve3;
	exports.QuadraticBezierCurve = QuadraticBezierCurve;
	exports.QuadraticBezierCurve3 = QuadraticBezierCurve3;
	exports.SplineCurve = SplineCurve;
	exports.REVISION = REVISION;
	exports.MOUSE = MOUSE;
	exports.CullFaceNone = CullFaceNone;
	exports.CullFaceBack = CullFaceBack;
	exports.CullFaceFront = CullFaceFront;
	exports.CullFaceFrontBack = CullFaceFrontBack;
	exports.FrontFaceDirectionCW = FrontFaceDirectionCW;
	exports.FrontFaceDirectionCCW = FrontFaceDirectionCCW;
	exports.BasicShadowMap = BasicShadowMap;
	exports.PCFShadowMap = PCFShadowMap;
	exports.PCFSoftShadowMap = PCFSoftShadowMap;
	exports.FrontSide = FrontSide;
	exports.BackSide = BackSide;
	exports.DoubleSide = DoubleSide;
	exports.FlatShading = FlatShading;
	exports.SmoothShading = SmoothShading;
	exports.NoColors = NoColors;
	exports.FaceColors = FaceColors;
	exports.VertexColors = VertexColors;
	exports.NoBlending = NoBlending;
	exports.NormalBlending = NormalBlending;
	exports.AdditiveBlending = AdditiveBlending;
	exports.SubtractiveBlending = SubtractiveBlending;
	exports.MultiplyBlending = MultiplyBlending;
	exports.CustomBlending = CustomBlending;
	exports.AddEquation = AddEquation;
	exports.SubtractEquation = SubtractEquation;
	exports.ReverseSubtractEquation = ReverseSubtractEquation;
	exports.MinEquation = MinEquation;
	exports.MaxEquation = MaxEquation;
	exports.ZeroFactor = ZeroFactor;
	exports.OneFactor = OneFactor;
	exports.SrcColorFactor = SrcColorFactor;
	exports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;
	exports.SrcAlphaFactor = SrcAlphaFactor;
	exports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;
	exports.DstAlphaFactor = DstAlphaFactor;
	exports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;
	exports.DstColorFactor = DstColorFactor;
	exports.OneMinusDstColorFactor = OneMinusDstColorFactor;
	exports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;
	exports.NeverDepth = NeverDepth;
	exports.AlwaysDepth = AlwaysDepth;
	exports.LessDepth = LessDepth;
	exports.LessEqualDepth = LessEqualDepth;
	exports.EqualDepth = EqualDepth;
	exports.GreaterEqualDepth = GreaterEqualDepth;
	exports.GreaterDepth = GreaterDepth;
	exports.NotEqualDepth = NotEqualDepth;
	exports.MultiplyOperation = MultiplyOperation;
	exports.MixOperation = MixOperation;
	exports.AddOperation = AddOperation;
	exports.NoToneMapping = NoToneMapping;
	exports.LinearToneMapping = LinearToneMapping;
	exports.ReinhardToneMapping = ReinhardToneMapping;
	exports.Uncharted2ToneMapping = Uncharted2ToneMapping;
	exports.CineonToneMapping = CineonToneMapping;
	exports.UVMapping = UVMapping;
	exports.CubeReflectionMapping = CubeReflectionMapping;
	exports.CubeRefractionMapping = CubeRefractionMapping;
	exports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;
	exports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;
	exports.SphericalReflectionMapping = SphericalReflectionMapping;
	exports.CubeUVReflectionMapping = CubeUVReflectionMapping;
	exports.CubeUVRefractionMapping = CubeUVRefractionMapping;
	exports.RepeatWrapping = RepeatWrapping;
	exports.ClampToEdgeWrapping = ClampToEdgeWrapping;
	exports.MirroredRepeatWrapping = MirroredRepeatWrapping;
	exports.NearestFilter = NearestFilter;
	exports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;
	exports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;
	exports.LinearFilter = LinearFilter;
	exports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;
	exports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;
	exports.UnsignedByteType = UnsignedByteType;
	exports.ByteType = ByteType;
	exports.ShortType = ShortType;
	exports.UnsignedShortType = UnsignedShortType;
	exports.IntType = IntType;
	exports.UnsignedIntType = UnsignedIntType;
	exports.FloatType = FloatType;
	exports.HalfFloatType = HalfFloatType;
	exports.UnsignedShort4444Type = UnsignedShort4444Type;
	exports.UnsignedShort5551Type = UnsignedShort5551Type;
	exports.UnsignedShort565Type = UnsignedShort565Type;
	exports.UnsignedInt248Type = UnsignedInt248Type;
	exports.AlphaFormat = AlphaFormat;
	exports.RGBFormat = RGBFormat;
	exports.RGBAFormat = RGBAFormat;
	exports.LuminanceFormat = LuminanceFormat;
	exports.LuminanceAlphaFormat = LuminanceAlphaFormat;
	exports.RGBEFormat = RGBEFormat;
	exports.DepthFormat = DepthFormat;
	exports.DepthStencilFormat = DepthStencilFormat;
	exports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;
	exports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;
	exports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;
	exports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;
	exports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;
	exports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;
	exports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;
	exports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;
	exports.RGB_ETC1_Format = RGB_ETC1_Format;
	exports.RGBA_ASTC_4x4_Format = RGBA_ASTC_4x4_Format;
	exports.RGBA_ASTC_5x4_Format = RGBA_ASTC_5x4_Format;
	exports.RGBA_ASTC_5x5_Format = RGBA_ASTC_5x5_Format;
	exports.RGBA_ASTC_6x5_Format = RGBA_ASTC_6x5_Format;
	exports.RGBA_ASTC_6x6_Format = RGBA_ASTC_6x6_Format;
	exports.RGBA_ASTC_8x5_Format = RGBA_ASTC_8x5_Format;
	exports.RGBA_ASTC_8x6_Format = RGBA_ASTC_8x6_Format;
	exports.RGBA_ASTC_8x8_Format = RGBA_ASTC_8x8_Format;
	exports.RGBA_ASTC_10x5_Format = RGBA_ASTC_10x5_Format;
	exports.RGBA_ASTC_10x6_Format = RGBA_ASTC_10x6_Format;
	exports.RGBA_ASTC_10x8_Format = RGBA_ASTC_10x8_Format;
	exports.RGBA_ASTC_10x10_Format = RGBA_ASTC_10x10_Format;
	exports.RGBA_ASTC_12x10_Format = RGBA_ASTC_12x10_Format;
	exports.RGBA_ASTC_12x12_Format = RGBA_ASTC_12x12_Format;
	exports.LoopOnce = LoopOnce;
	exports.LoopRepeat = LoopRepeat;
	exports.LoopPingPong = LoopPingPong;
	exports.InterpolateDiscrete = InterpolateDiscrete;
	exports.InterpolateLinear = InterpolateLinear;
	exports.InterpolateSmooth = InterpolateSmooth;
	exports.ZeroCurvatureEnding = ZeroCurvatureEnding;
	exports.ZeroSlopeEnding = ZeroSlopeEnding;
	exports.WrapAroundEnding = WrapAroundEnding;
	exports.TrianglesDrawMode = TrianglesDrawMode;
	exports.TriangleStripDrawMode = TriangleStripDrawMode;
	exports.TriangleFanDrawMode = TriangleFanDrawMode;
	exports.LinearEncoding = LinearEncoding;
	exports.sRGBEncoding = sRGBEncoding;
	exports.GammaEncoding = GammaEncoding;
	exports.RGBEEncoding = RGBEEncoding;
	exports.LogLuvEncoding = LogLuvEncoding;
	exports.RGBM7Encoding = RGBM7Encoding;
	exports.RGBM16Encoding = RGBM16Encoding;
	exports.RGBDEncoding = RGBDEncoding;
	exports.BasicDepthPacking = BasicDepthPacking;
	exports.RGBADepthPacking = RGBADepthPacking;
	exports.TangentSpaceNormalMap = TangentSpaceNormalMap;
	exports.ObjectSpaceNormalMap = ObjectSpaceNormalMap;
	exports.CubeGeometry = BoxGeometry;
	exports.Face4 = Face4;
	exports.LineStrip = LineStrip;
	exports.LinePieces = LinePieces;
	exports.MeshFaceMaterial = MeshFaceMaterial;
	exports.MultiMaterial = MultiMaterial;
	exports.PointCloud = PointCloud;
	exports.Particle = Particle;
	exports.ParticleSystem = ParticleSystem;
	exports.PointCloudMaterial = PointCloudMaterial;
	exports.ParticleBasicMaterial = ParticleBasicMaterial;
	exports.ParticleSystemMaterial = ParticleSystemMaterial;
	exports.Vertex = Vertex;
	exports.DynamicBufferAttribute = DynamicBufferAttribute;
	exports.Int8Attribute = Int8Attribute;
	exports.Uint8Attribute = Uint8Attribute;
	exports.Uint8ClampedAttribute = Uint8ClampedAttribute;
	exports.Int16Attribute = Int16Attribute;
	exports.Uint16Attribute = Uint16Attribute;
	exports.Int32Attribute = Int32Attribute;
	exports.Uint32Attribute = Uint32Attribute;
	exports.Float32Attribute = Float32Attribute;
	exports.Float64Attribute = Float64Attribute;
	exports.ClosedSplineCurve3 = ClosedSplineCurve3;
	exports.SplineCurve3 = SplineCurve3;
	exports.Spline = Spline;
	exports.AxisHelper = AxisHelper;
	exports.BoundingBoxHelper = BoundingBoxHelper;
	exports.EdgesHelper = EdgesHelper;
	exports.WireframeHelper = WireframeHelper;
	exports.XHRLoader = XHRLoader;
	exports.BinaryTextureLoader = BinaryTextureLoader;
	exports.GeometryUtils = GeometryUtils;
	exports.Projector = Projector;
	exports.CanvasRenderer = CanvasRenderer;
	exports.SceneUtils = SceneUtils;
	exports.LensFlare = LensFlare;

	Object.defineProperty(exports, '__esModule', { value: true });

})));
;/*
 * @author mrdoob / http://mrdoob.com/
 */

THREE.DDSLoader = function ( manager ) {

	THREE.CompressedTextureLoader.call( this, manager );

	this._parser = THREE.DDSLoader.parse;

};

THREE.DDSLoader.prototype = Object.create( THREE.CompressedTextureLoader.prototype );
THREE.DDSLoader.prototype.constructor = THREE.DDSLoader;

THREE.DDSLoader.parse = function ( buffer, loadMipmaps ) {

	var dds = { mipmaps: [], width: 0, height: 0, format: null, mipmapCount: 1 };

	// Adapted from @toji's DDS utils
	// https://github.com/toji/webgl-texture-utils/blob/master/texture-util/dds.js

	// All values and structures referenced from:
	// http://msdn.microsoft.com/en-us/library/bb943991.aspx/

	var DDS_MAGIC = 0x20534444;

	var DDSD_CAPS = 0x1,
		DDSD_HEIGHT = 0x2,
		DDSD_WIDTH = 0x4,
		DDSD_PITCH = 0x8,
		DDSD_PIXELFORMAT = 0x1000,
		DDSD_MIPMAPCOUNT = 0x20000,
		DDSD_LINEARSIZE = 0x80000,
		DDSD_DEPTH = 0x800000;

	var DDSCAPS_COMPLEX = 0x8,
		DDSCAPS_MIPMAP = 0x400000,
		DDSCAPS_TEXTURE = 0x1000;

	var DDSCAPS2_CUBEMAP = 0x200,
		DDSCAPS2_CUBEMAP_POSITIVEX = 0x400,
		DDSCAPS2_CUBEMAP_NEGATIVEX = 0x800,
		DDSCAPS2_CUBEMAP_POSITIVEY = 0x1000,
		DDSCAPS2_CUBEMAP_NEGATIVEY = 0x2000,
		DDSCAPS2_CUBEMAP_POSITIVEZ = 0x4000,
		DDSCAPS2_CUBEMAP_NEGATIVEZ = 0x8000,
		DDSCAPS2_VOLUME = 0x200000;

	var DDPF_ALPHAPIXELS = 0x1,
		DDPF_ALPHA = 0x2,
		DDPF_FOURCC = 0x4,
		DDPF_RGB = 0x40,
		DDPF_YUV = 0x200,
		DDPF_LUMINANCE = 0x20000;

	function fourCCToInt32( value ) {

		return value.charCodeAt( 0 ) +
			( value.charCodeAt( 1 ) << 8 ) +
			( value.charCodeAt( 2 ) << 16 ) +
			( value.charCodeAt( 3 ) << 24 );

	}

	function int32ToFourCC( value ) {

		return String.fromCharCode(
			value & 0xff,
			( value >> 8 ) & 0xff,
			( value >> 16 ) & 0xff,
			( value >> 24 ) & 0xff
		);

	}

	function loadARGBMip( buffer, dataOffset, width, height ) {

		var dataLength = width * height * 4;
		var srcBuffer = new Uint8Array( buffer, dataOffset, dataLength );
		var byteArray = new Uint8Array( dataLength );
		var dst = 0;
		var src = 0;
		for ( var y = 0; y < height; y ++ ) {

			for ( var x = 0; x < width; x ++ ) {

				var b = srcBuffer[ src ]; src ++;
				var g = srcBuffer[ src ]; src ++;
				var r = srcBuffer[ src ]; src ++;
				var a = srcBuffer[ src ]; src ++;
				byteArray[ dst ] = r; dst ++;	//r
				byteArray[ dst ] = g; dst ++;	//g
				byteArray[ dst ] = b; dst ++;	//b
				byteArray[ dst ] = a; dst ++;	//a

			}

		}
		return byteArray;

	}

	var FOURCC_DXT1 = fourCCToInt32( "DXT1" );
	var FOURCC_DXT3 = fourCCToInt32( "DXT3" );
	var FOURCC_DXT5 = fourCCToInt32( "DXT5" );
	var FOURCC_ETC1 = fourCCToInt32( "ETC1" );

	var headerLengthInt = 31; // The header length in 32 bit ints

	// Offsets into the header array

	var off_magic = 0;

	var off_size = 1;
	var off_flags = 2;
	var off_height = 3;
	var off_width = 4;

	var off_mipmapCount = 7;

	var off_pfFlags = 20;
	var off_pfFourCC = 21;
	var off_RGBBitCount = 22;
	var off_RBitMask = 23;
	var off_GBitMask = 24;
	var off_BBitMask = 25;
	var off_ABitMask = 26;

	var off_caps = 27;
	var off_caps2 = 28;
	var off_caps3 = 29;
	var off_caps4 = 30;

	// Parse header

	var header = new Int32Array( buffer, 0, headerLengthInt );

	if ( header[ off_magic ] !== DDS_MAGIC ) {

		console.error( 'THREE.DDSLoader.parse: Invalid magic number in DDS header.' );
		return dds;

	}

	if ( ! header[ off_pfFlags ] & DDPF_FOURCC ) {

		console.error( 'THREE.DDSLoader.parse: Unsupported format, must contain a FourCC code.' );
		return dds;

	}

	var blockBytes;

	var fourCC = header[ off_pfFourCC ];

	var isRGBAUncompressed = false;

	switch ( fourCC ) {

		case FOURCC_DXT1:

			blockBytes = 8;
			dds.format = THREE.RGB_S3TC_DXT1_Format;
			break;

		case FOURCC_DXT3:

			blockBytes = 16;
			dds.format = THREE.RGBA_S3TC_DXT3_Format;
			break;

		case FOURCC_DXT5:

			blockBytes = 16;
			dds.format = THREE.RGBA_S3TC_DXT5_Format;
			break;

		case FOURCC_ETC1:

			blockBytes = 8;
			dds.format = THREE.RGB_ETC1_Format;
			break;

		default:

			if ( header[ off_RGBBitCount ] === 32
				&& header[ off_RBitMask ] & 0xff0000
				&& header[ off_GBitMask ] & 0xff00
				&& header[ off_BBitMask ] & 0xff
				&& header[ off_ABitMask ] & 0xff000000 ) {

				isRGBAUncompressed = true;
				blockBytes = 64;
				dds.format = THREE.RGBAFormat;

			} else {

				console.error( 'THREE.DDSLoader.parse: Unsupported FourCC code ', int32ToFourCC( fourCC ) );
				return dds;

			}

	}

	dds.mipmapCount = 1;

	if ( header[ off_flags ] & DDSD_MIPMAPCOUNT && loadMipmaps !== false ) {

		dds.mipmapCount = Math.max( 1, header[ off_mipmapCount ] );

	}

	var caps2 = header[ off_caps2 ];
	dds.isCubemap = caps2 & DDSCAPS2_CUBEMAP ? true : false;
	if ( dds.isCubemap && (
		! ( caps2 & DDSCAPS2_CUBEMAP_POSITIVEX ) ||
		! ( caps2 & DDSCAPS2_CUBEMAP_NEGATIVEX ) ||
		! ( caps2 & DDSCAPS2_CUBEMAP_POSITIVEY ) ||
		! ( caps2 & DDSCAPS2_CUBEMAP_NEGATIVEY ) ||
		! ( caps2 & DDSCAPS2_CUBEMAP_POSITIVEZ ) ||
		! ( caps2 & DDSCAPS2_CUBEMAP_NEGATIVEZ )
	) ) {

		console.error( 'THREE.DDSLoader.parse: Incomplete cubemap faces' );
		return dds;

	}

	dds.width = header[ off_width ];
	dds.height = header[ off_height ];

	var dataOffset = header[ off_size ] + 4;

	// Extract mipmaps buffers

	var faces = dds.isCubemap ? 6 : 1;

	for ( var face = 0; face < faces; face ++ ) {

		var width = dds.width;
		var height = dds.height;

		for ( var i = 0; i < dds.mipmapCount; i ++ ) {

			if ( isRGBAUncompressed ) {

				var byteArray = loadARGBMip( buffer, dataOffset, width, height );
				var dataLength = byteArray.length;

			} else {

				var dataLength = Math.max( 4, width ) / 4 * Math.max( 4, height ) / 4 * blockBytes;
				var byteArray = new Uint8Array( buffer, dataOffset, dataLength );

			}

			var mipmap = { "data": byteArray, "width": width, "height": height };
			dds.mipmaps.push( mipmap );

			dataOffset += dataLength;

			width = Math.max( width >> 1, 1 );
			height = Math.max( height >> 1, 1 );

		}

	}

	return dds;

};
;/**
 * Loads a Wavefront .mtl file specifying materials
 *
 * @author angelxuanchang
 */

THREE.MTLLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

};

THREE.MTLLoader.prototype = {

	constructor: THREE.MTLLoader,

	/**
	 * Loads and parses a MTL asset from a URL.
	 *
	 * @param {String} url - URL to the MTL file.
	 * @param {Function} [onLoad] - Callback invoked with the loaded object.
	 * @param {Function} [onProgress] - Callback for download progress.
	 * @param {Function} [onError] - Callback for download errors.
	 *
	 * @see setPath setTexturePath
	 *
	 * @note In order for relative texture references to resolve correctly
	 * you must call setPath and/or setTexturePath explicitly prior to load.
	 */
	load: function ( url, onLoad, onProgress, onError ) {

		var scope = this;

		var loader = new THREE.FileLoader( this.manager );
		loader.setPath( this.path );
		loader.load( url, function ( text ) {

			onLoad( scope.parse( text ) );

		}, onProgress, onError );

	},

	/**
	 * Set base path for resolving references.
	 * If set this path will be prepended to each loaded and found reference.
	 *
	 * @see setTexturePath
	 * @param {String} path
	 * @return {THREE.MTLLoader}
	 *
	 * @example
	 *     mtlLoader.setPath( 'assets/obj/' );
	 *     mtlLoader.load( 'my.mtl', ... );
	 */
	setPath: function ( path ) {

		this.path = path;
		return this;

	},

	/**
	 * Set base path for resolving texture references.
	 * If set this path will be prepended found texture reference.
	 * If not set and setPath is, it will be used as texture base path.
	 *
	 * @see setPath
	 * @param {String} path
	 * @return {THREE.MTLLoader}
	 *
	 * @example
	 *     mtlLoader.setPath( 'assets/obj/' );
	 *     mtlLoader.setTexturePath( 'assets/textures/' );
	 *     mtlLoader.load( 'my.mtl', ... );
	 */
	setTexturePath: function ( path ) {

		this.texturePath = path;
		return this;

	},

	setBaseUrl: function ( path ) {

		console.warn( 'THREE.MTLLoader: .setBaseUrl() is deprecated. Use .setTexturePath( path ) for texture path or .setPath( path ) for general base path instead.' );

		return this.setTexturePath( path );

	},

	setCrossOrigin: function ( value ) {

		this.crossOrigin = value;
		return this;

	},

	setMaterialOptions: function ( value ) {

		this.materialOptions = value;
		return this;

	},

	/**
	 * Parses a MTL file.
	 *
	 * @param {String} text - Content of MTL file
	 * @return {THREE.MTLLoader.MaterialCreator}
	 *
	 * @see setPath setTexturePath
	 *
	 * @note In order for relative texture references to resolve correctly
	 * you must call setPath and/or setTexturePath explicitly prior to parse.
	 */
	parse: function ( text ) {

		var lines = text.split( '\n' );
		var info = {};
		var delimiter_pattern = /\s+/;
		var materialsInfo = {};

		for ( var i = 0; i < lines.length; i ++ ) {

			var line = lines[ i ];
			line = line.trim();

			if ( line.length === 0 || line.charAt( 0 ) === '#' ) {

				// Blank line or comment ignore
				continue;

			}

			var pos = line.indexOf( ' ' );

			var key = ( pos >= 0 ) ? line.substring( 0, pos ) : line;
			key = key.toLowerCase();

			var value = ( pos >= 0 ) ? line.substring( pos + 1 ) : '';
			value = value.trim();

			if ( key === 'newmtl' ) {

				// New material

				info = { name: value };
				materialsInfo[ value ] = info;

			} else if ( info ) {

				if ( key === 'ka' || key === 'kd' || key === 'ks' ) {

					var ss = value.split( delimiter_pattern, 3 );
					info[ key ] = [ parseFloat( ss[ 0 ] ), parseFloat( ss[ 1 ] ), parseFloat( ss[ 2 ] ) ];

				} else {

					info[ key ] = value;

				}

			}

		}

		var materialCreator = new THREE.MTLLoader.MaterialCreator( this.texturePath || this.path, this.materialOptions );
		materialCreator.setCrossOrigin( this.crossOrigin );
		materialCreator.setManager( this.manager );
		materialCreator.setMaterials( materialsInfo );
		return materialCreator;

	}

};

/**
 * Create a new THREE-MTLLoader.MaterialCreator
 * @param baseUrl - Url relative to which textures are loaded
 * @param options - Set of options on how to construct the materials
 *                  side: Which side to apply the material
 *                        THREE.FrontSide (default), THREE.BackSide, THREE.DoubleSide
 *                  wrap: What type of wrapping to apply for textures
 *                        THREE.RepeatWrapping (default), THREE.ClampToEdgeWrapping, THREE.MirroredRepeatWrapping
 *                  normalizeRGB: RGBs need to be normalized to 0-1 from 0-255
 *                                Default: false, assumed to be already normalized
 *                  ignoreZeroRGBs: Ignore values of RGBs (Ka,Kd,Ks) that are all 0's
 *                                  Default: false
 * @constructor
 */

THREE.MTLLoader.MaterialCreator = function ( baseUrl, options ) {

	this.baseUrl = baseUrl || '';
	this.options = options;
	this.materialsInfo = {};
	this.materials = {};
	this.materialsArray = [];
	this.nameLookup = {};

	this.side = ( this.options && this.options.side ) ? this.options.side : THREE.FrontSide;
	this.wrap = ( this.options && this.options.wrap ) ? this.options.wrap : THREE.RepeatWrapping;

};

THREE.MTLLoader.MaterialCreator.prototype = {

	constructor: THREE.MTLLoader.MaterialCreator,

	crossOrigin: 'anonymous',

	setCrossOrigin: function ( value ) {

		this.crossOrigin = value;
		return this;

	},

	setManager: function ( value ) {

		this.manager = value;

	},

	setMaterials: function ( materialsInfo ) {

		this.materialsInfo = this.convert( materialsInfo );
		this.materials = {};
		this.materialsArray = [];
		this.nameLookup = {};

	},

	convert: function ( materialsInfo ) {

		if ( ! this.options ) return materialsInfo;

		var converted = {};

		for ( var mn in materialsInfo ) {

			// Convert materials info into normalized form based on options

			var mat = materialsInfo[ mn ];

			var covmat = {};

			converted[ mn ] = covmat;

			for ( var prop in mat ) {

				var save = true;
				var value = mat[ prop ];
				var lprop = prop.toLowerCase();

				switch ( lprop ) {

					case 'kd':
					case 'ka':
					case 'ks':

						// Diffuse color (color under white light) using RGB values

						if ( this.options && this.options.normalizeRGB ) {

							value = [ value[ 0 ] / 255, value[ 1 ] / 255, value[ 2 ] / 255 ];

						}

						if ( this.options && this.options.ignoreZeroRGBs ) {

							if ( value[ 0 ] === 0 && value[ 1 ] === 0 && value[ 2 ] === 0 ) {

								// ignore

								save = false;

							}

						}

						break;

					default:

						break;

				}

				if ( save ) {

					covmat[ lprop ] = value;

				}

			}

		}

		return converted;

	},

	preload: function () {

		for ( var mn in this.materialsInfo ) {

			this.create( mn );

		}

	},

	getIndex: function ( materialName ) {

		return this.nameLookup[ materialName ];

	},

	getAsArray: function () {

		var index = 0;

		for ( var mn in this.materialsInfo ) {

			this.materialsArray[ index ] = this.create( mn );
			this.nameLookup[ mn ] = index;
			index ++;

		}

		return this.materialsArray;

	},

	create: function ( materialName ) {

		if ( this.materials[ materialName ] === undefined ) {

			this.createMaterial_( materialName );

		}

		return this.materials[ materialName ];

	},

	createMaterial_: function ( materialName ) {

		// Create material

		var scope = this;
		var mat = this.materialsInfo[ materialName ];
		var params = {

			name: materialName,
			side: this.side

		};

		function resolveURL( baseUrl, url ) {

			if ( typeof url !== 'string' || url === '' )
				return '';

			// Absolute URL
			if ( /^https?:\/\//i.test( url ) ) return url;

			return baseUrl + url;

		}

		function setMapForType( mapType, value ) {

			if ( params[ mapType ] ) return; // Keep the first encountered texture

			var texParams = scope.getTextureParams( value, params );
			var map = scope.loadTexture( resolveURL( scope.baseUrl, texParams.url ) );

			map.repeat.copy( texParams.scale );
			map.offset.copy( texParams.offset );

			map.wrapS = scope.wrap;
			map.wrapT = scope.wrap;

			params[ mapType ] = map;

		}

		for ( var prop in mat ) {

			var value = mat[ prop ];
			var n;

			if ( value === '' ) continue;

			switch ( prop.toLowerCase() ) {

				// Ns is material specular exponent

				case 'kd':

					// Diffuse color (color under white light) using RGB values

					params.color = new THREE.Color().fromArray( value );

					break;

				case 'ks':

					// Specular color (color when light is reflected from shiny surface) using RGB values
					params.specular = new THREE.Color().fromArray( value );

					break;

				case 'map_kd':

					// Diffuse texture map

					setMapForType( "map", value );

					break;

				case 'map_ks':

					// Specular map

					setMapForType( "specularMap", value );

					break;

				case 'norm':

					setMapForType( "normalMap", value );

					break;

				case 'map_bump':
				case 'bump':

					// Bump texture map

					setMapForType( "bumpMap", value );

					break;

				case 'ns':

					// The specular exponent (defines the focus of the specular highlight)
					// A high exponent results in a tight, concentrated highlight. Ns values normally range from 0 to 1000.

					params.shininess = parseFloat( value );

					break;

				case 'd':
					n = parseFloat( value );

					if ( n < 1 ) {

						params.opacity = n;
						params.transparent = true;

					}

					break;

				case 'tr':
					n = parseFloat( value );

					if ( this.options && this.options.invertTrProperty ) n = 1 - n;

					if ( n > 0 ) {

						params.opacity = 1 - n;
						params.transparent = true;

					}

					break;

				default:
					break;

			}

		}

		this.materials[ materialName ] = new THREE.MeshPhongMaterial( params );
		return this.materials[ materialName ];

	},

	getTextureParams: function ( value, matParams ) {

		var texParams = {

			scale: new THREE.Vector2( 1, 1 ),
			offset: new THREE.Vector2( 0, 0 )

		 };

		var items = value.split( /\s+/ );
		var pos;

		pos = items.indexOf( '-bm' );

		if ( pos >= 0 ) {

			matParams.bumpScale = parseFloat( items[ pos + 1 ] );
			items.splice( pos, 2 );

		}

		pos = items.indexOf( '-s' );

		if ( pos >= 0 ) {

			texParams.scale.set( parseFloat( items[ pos + 1 ] ), parseFloat( items[ pos + 2 ] ) );
			items.splice( pos, 4 ); // we expect 3 parameters here!

		}

		pos = items.indexOf( '-o' );

		if ( pos >= 0 ) {

			texParams.offset.set( parseFloat( items[ pos + 1 ] ), parseFloat( items[ pos + 2 ] ) );
			items.splice( pos, 4 ); // we expect 3 parameters here!

		}

		texParams.url = items.join( ' ' ).trim();
		return texParams;

	},

	loadTexture: function ( url, mapping, onLoad, onProgress, onError ) {

		var texture;
		var loader = THREE.Loader.Handlers.get( url );
		var manager = ( this.manager !== undefined ) ? this.manager : THREE.DefaultLoadingManager;

		if ( loader === null ) {

			loader = new THREE.TextureLoader( manager );

		}

		if ( loader.setCrossOrigin ) loader.setCrossOrigin( this.crossOrigin );
		texture = loader.load( url, onLoad, onProgress, onError );

		if ( mapping !== undefined ) texture.mapping = mapping;

		return texture;

	}

};
;/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.OBJLoader = ( function () {

	// o object_name | g group_name
	var object_pattern = /^[og]\s*(.+)?/;
	// mtllib file_reference
	var material_library_pattern = /^mtllib /;
	// usemtl material_name
	var material_use_pattern = /^usemtl /;

	function ParserState() {

		var state = {
			objects: [],
			object: {},

			vertices: [],
			normals: [],
			colors: [],
			uvs: [],

			materialLibraries: [],

			startObject: function ( name, fromDeclaration ) {

				// If the current object (initial from reset) is not from a g/o declaration in the parsed
				// file. We need to use it for the first parsed g/o to keep things in sync.
				if ( this.object && this.object.fromDeclaration === false ) {

					this.object.name = name;
					this.object.fromDeclaration = ( fromDeclaration !== false );
					return;

				}

				var previousMaterial = ( this.object && typeof this.object.currentMaterial === 'function' ? this.object.currentMaterial() : undefined );

				if ( this.object && typeof this.object._finalize === 'function' ) {

					this.object._finalize( true );

				}

				this.object = {
					name: name || '',
					fromDeclaration: ( fromDeclaration !== false ),

					geometry: {
						vertices: [],
						normals: [],
						colors: [],
						uvs: []
					},
					materials: [],
					smooth: true,

					startMaterial: function ( name, libraries ) {

						var previous = this._finalize( false );

						// New usemtl declaration overwrites an inherited material, except if faces were declared
						// after the material, then it must be preserved for proper MultiMaterial continuation.
						if ( previous && ( previous.inherited || previous.groupCount <= 0 ) ) {

							this.materials.splice( previous.index, 1 );

						}

						var material = {
							index: this.materials.length,
							name: name || '',
							mtllib: ( Array.isArray( libraries ) && libraries.length > 0 ? libraries[ libraries.length - 1 ] : '' ),
							smooth: ( previous !== undefined ? previous.smooth : this.smooth ),
							groupStart: ( previous !== undefined ? previous.groupEnd : 0 ),
							groupEnd: - 1,
							groupCount: - 1,
							inherited: false,

							clone: function ( index ) {

								var cloned = {
									index: ( typeof index === 'number' ? index : this.index ),
									name: this.name,
									mtllib: this.mtllib,
									smooth: this.smooth,
									groupStart: 0,
									groupEnd: - 1,
									groupCount: - 1,
									inherited: false
								};
								cloned.clone = this.clone.bind( cloned );
								return cloned;

							}
						};

						this.materials.push( material );

						return material;

					},

					currentMaterial: function () {

						if ( this.materials.length > 0 ) {

							return this.materials[ this.materials.length - 1 ];

						}

						return undefined;

					},

					_finalize: function ( end ) {

						var lastMultiMaterial = this.currentMaterial();
						if ( lastMultiMaterial && lastMultiMaterial.groupEnd === - 1 ) {

							lastMultiMaterial.groupEnd = this.geometry.vertices.length / 3;
							lastMultiMaterial.groupCount = lastMultiMaterial.groupEnd - lastMultiMaterial.groupStart;
							lastMultiMaterial.inherited = false;

						}

						// Ignore objects tail materials if no face declarations followed them before a new o/g started.
						if ( end && this.materials.length > 1 ) {

							for ( var mi = this.materials.length - 1; mi >= 0; mi -- ) {

								if ( this.materials[ mi ].groupCount <= 0 ) {

									this.materials.splice( mi, 1 );

								}

							}

						}

						// Guarantee at least one empty material, this makes the creation later more straight forward.
						if ( end && this.materials.length === 0 ) {

							this.materials.push( {
								name: '',
								smooth: this.smooth
							} );

						}

						return lastMultiMaterial;

					}
				};

				// Inherit previous objects material.
				// Spec tells us that a declared material must be set to all objects until a new material is declared.
				// If a usemtl declaration is encountered while this new object is being parsed, it will
				// overwrite the inherited material. Exception being that there was already face declarations
				// to the inherited material, then it will be preserved for proper MultiMaterial continuation.

				if ( previousMaterial && previousMaterial.name && typeof previousMaterial.clone === 'function' ) {

					var declared = previousMaterial.clone( 0 );
					declared.inherited = true;
					this.object.materials.push( declared );

				}

				this.objects.push( this.object );

			},

			finalize: function () {

				if ( this.object && typeof this.object._finalize === 'function' ) {

					this.object._finalize( true );

				}

			},

			parseVertexIndex: function ( value, len ) {

				var index = parseInt( value, 10 );
				return ( index >= 0 ? index - 1 : index + len / 3 ) * 3;

			},

			parseNormalIndex: function ( value, len ) {

				var index = parseInt( value, 10 );
				return ( index >= 0 ? index - 1 : index + len / 3 ) * 3;

			},

			parseUVIndex: function ( value, len ) {

				var index = parseInt( value, 10 );
				return ( index >= 0 ? index - 1 : index + len / 2 ) * 2;

			},

			addVertex: function ( a, b, c ) {

				var src = this.vertices;
				var dst = this.object.geometry.vertices;

				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
				dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] );
				dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] );

			},

			addVertexPoint: function ( a ) {

				var src = this.vertices;
				var dst = this.object.geometry.vertices;

				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );

			},

			addVertexLine: function ( a ) {

				var src = this.vertices;
				var dst = this.object.geometry.vertices;

				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );

			},

			addNormal: function ( a, b, c ) {

				var src = this.normals;
				var dst = this.object.geometry.normals;

				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
				dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] );
				dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] );

			},

			addColor: function ( a, b, c ) {

				var src = this.colors;
				var dst = this.object.geometry.colors;

				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
				dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] );
				dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] );

			},

			addUV: function ( a, b, c ) {

				var src = this.uvs;
				var dst = this.object.geometry.uvs;

				dst.push( src[ a + 0 ], src[ a + 1 ] );
				dst.push( src[ b + 0 ], src[ b + 1 ] );
				dst.push( src[ c + 0 ], src[ c + 1 ] );

			},

			addUVLine: function ( a ) {

				var src = this.uvs;
				var dst = this.object.geometry.uvs;

				dst.push( src[ a + 0 ], src[ a + 1 ] );

			},

			addFace: function ( a, b, c, ua, ub, uc, na, nb, nc ) {

				var vLen = this.vertices.length;

				var ia = this.parseVertexIndex( a, vLen );
				var ib = this.parseVertexIndex( b, vLen );
				var ic = this.parseVertexIndex( c, vLen );

				this.addVertex( ia, ib, ic );

				if ( ua !== undefined && ua !== '' ) {

					var uvLen = this.uvs.length;
					ia = this.parseUVIndex( ua, uvLen );
					ib = this.parseUVIndex( ub, uvLen );
					ic = this.parseUVIndex( uc, uvLen );
					this.addUV( ia, ib, ic );

				}

				if ( na !== undefined && na !== '' ) {

					// Normals are many times the same. If so, skip function call and parseInt.
					var nLen = this.normals.length;
					ia = this.parseNormalIndex( na, nLen );

					ib = na === nb ? ia : this.parseNormalIndex( nb, nLen );
					ic = na === nc ? ia : this.parseNormalIndex( nc, nLen );

					this.addNormal( ia, ib, ic );

				}

				if ( this.colors.length > 0 ) {

					this.addColor( ia, ib, ic );

				}

			},

			addPointGeometry: function ( vertices ) {

				this.object.geometry.type = 'Points';

				var vLen = this.vertices.length;

				for ( var vi = 0, l = vertices.length; vi < l; vi ++ ) {

					this.addVertexPoint( this.parseVertexIndex( vertices[ vi ], vLen ) );

				}

			},

			addLineGeometry: function ( vertices, uvs ) {

				this.object.geometry.type = 'Line';

				var vLen = this.vertices.length;
				var uvLen = this.uvs.length;

				for ( var vi = 0, l = vertices.length; vi < l; vi ++ ) {

					this.addVertexLine( this.parseVertexIndex( vertices[ vi ], vLen ) );

				}

				for ( var uvi = 0, l = uvs.length; uvi < l; uvi ++ ) {

					this.addUVLine( this.parseUVIndex( uvs[ uvi ], uvLen ) );

				}

			}

		};

		state.startObject( '', false );

		return state;

	}

	//

	function OBJLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

		this.materials = null;

	}

	OBJLoader.prototype = {

		constructor: OBJLoader,

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var loader = new THREE.FileLoader( scope.manager );
			loader.setPath( this.path );
			loader.load( url, function ( text ) {

				onLoad( scope.parse( text ) );

			}, onProgress, onError );

		},

		setPath: function ( value ) {

			this.path = value;

			return this;

		},

		setMaterials: function ( materials ) {

			this.materials = materials;

			return this;

		},

		parse: function ( text ) {

			console.time( 'OBJLoader' );

			var state = new ParserState();

			if ( text.indexOf( '\r\n' ) !== - 1 ) {

				// This is faster than String.split with regex that splits on both
				text = text.replace( /\r\n/g, '\n' );

			}

			if ( text.indexOf( '\\\n' ) !== - 1 ) {

				// join lines separated by a line continuation character (\)
				text = text.replace( /\\\n/g, '' );

			}

			var lines = text.split( '\n' );
			var line = '', lineFirstChar = '';
			var lineLength = 0;
			var result = [];

			// Faster to just trim left side of the line. Use if available.
			var trimLeft = ( typeof ''.trimLeft === 'function' );

			for ( var i = 0, l = lines.length; i < l; i ++ ) {

				line = lines[ i ];

				line = trimLeft ? line.trimLeft() : line.trim();

				lineLength = line.length;

				if ( lineLength === 0 ) continue;

				lineFirstChar = line.charAt( 0 );

				// @todo invoke passed in handler if any
				if ( lineFirstChar === '#' ) continue;

				if ( lineFirstChar === 'v' ) {

					var data = line.split( /\s+/ );

					switch ( data[ 0 ] ) {

						case 'v':
							state.vertices.push(
								parseFloat( data[ 1 ] ),
								parseFloat( data[ 2 ] ),
								parseFloat( data[ 3 ] )
							);
							if ( data.length === 8 ) {

								state.colors.push(
									parseFloat( data[ 4 ] ),
									parseFloat( data[ 5 ] ),
									parseFloat( data[ 6 ] )

								);

							}
							break;
						case 'vn':
							state.normals.push(
								parseFloat( data[ 1 ] ),
								parseFloat( data[ 2 ] ),
								parseFloat( data[ 3 ] )
							);
							break;
						case 'vt':
							state.uvs.push(
								parseFloat( data[ 1 ] ),
								parseFloat( data[ 2 ] )
							);
							break;

					}

				} else if ( lineFirstChar === 'f' ) {

					var lineData = line.substr( 1 ).trim();
					var vertexData = lineData.split( /\s+/ );
					var faceVertices = [];

					// Parse the face vertex data into an easy to work with format

					for ( var j = 0, jl = vertexData.length; j < jl; j ++ ) {

						var vertex = vertexData[ j ];

						if ( vertex.length > 0 ) {

							var vertexParts = vertex.split( '/' );
							faceVertices.push( vertexParts );

						}

					}

					// Draw an edge between the first vertex and all subsequent vertices to form an n-gon

					var v1 = faceVertices[ 0 ];

					for ( var j = 1, jl = faceVertices.length - 1; j < jl; j ++ ) {

						var v2 = faceVertices[ j ];
						var v3 = faceVertices[ j + 1 ];

						state.addFace(
							v1[ 0 ], v2[ 0 ], v3[ 0 ],
							v1[ 1 ], v2[ 1 ], v3[ 1 ],
							v1[ 2 ], v2[ 2 ], v3[ 2 ]
						);

					}

				} else if ( lineFirstChar === 'l' ) {

					var lineParts = line.substring( 1 ).trim().split( " " );
					var lineVertices = [], lineUVs = [];

					if ( line.indexOf( "/" ) === - 1 ) {

						lineVertices = lineParts;

					} else {

						for ( var li = 0, llen = lineParts.length; li < llen; li ++ ) {

							var parts = lineParts[ li ].split( "/" );

							if ( parts[ 0 ] !== "" ) lineVertices.push( parts[ 0 ] );
							if ( parts[ 1 ] !== "" ) lineUVs.push( parts[ 1 ] );

						}

					}
					state.addLineGeometry( lineVertices, lineUVs );

				} else if ( lineFirstChar === 'p' ) {

					var lineData = line.substr( 1 ).trim();
					var pointData = lineData.split( " " );

					state.addPointGeometry( pointData );

				} else if ( ( result = object_pattern.exec( line ) ) !== null ) {

					// o object_name
					// or
					// g group_name

					// WORKAROUND: https://bugs.chromium.org/p/v8/issues/detail?id=2869
					// var name = result[ 0 ].substr( 1 ).trim();
					var name = ( " " + result[ 0 ].substr( 1 ).trim() ).substr( 1 );

					state.startObject( name );

				} else if ( material_use_pattern.test( line ) ) {

					// material

					state.object.startMaterial( line.substring( 7 ).trim(), state.materialLibraries );

				} else if ( material_library_pattern.test( line ) ) {

					// mtl file

					state.materialLibraries.push( line.substring( 7 ).trim() );

				} else if ( lineFirstChar === 's' ) {

					result = line.split( ' ' );

					// smooth shading

					// @todo Handle files that have varying smooth values for a set of faces inside one geometry,
					// but does not define a usemtl for each face set.
					// This should be detected and a dummy material created (later MultiMaterial and geometry groups).
					// This requires some care to not create extra material on each smooth value for "normal" obj files.
					// where explicit usemtl defines geometry groups.
					// Example asset: examples/models/obj/cerberus/Cerberus.obj

					/*
					 * http://paulbourke.net/dataformats/obj/
					 * or
					 * http://www.cs.utah.edu/~boulos/cs3505/obj_spec.pdf
					 *
					 * From chapter "Grouping" Syntax explanation "s group_number":
					 * "group_number is the smoothing group number. To turn off smoothing groups, use a value of 0 or off.
					 * Polygonal elements use group numbers to put elements in different smoothing groups. For free-form
					 * surfaces, smoothing groups are either turned on or off; there is no difference between values greater
					 * than 0."
					 */
					if ( result.length > 1 ) {

						var value = result[ 1 ].trim().toLowerCase();
						state.object.smooth = ( value !== '0' && value !== 'off' );

					} else {

						// ZBrush can produce "s" lines #11707
						state.object.smooth = true;

					}
					var material = state.object.currentMaterial();
					if ( material ) material.smooth = state.object.smooth;

				} else {

					// Handle null terminated files without exception
					if ( line === '\0' ) continue;

					throw new Error( 'THREE.OBJLoader: Unexpected line: "' + line + '"' );

				}

			}

			state.finalize();

			var container = new THREE.Group();
			container.materialLibraries = [].concat( state.materialLibraries );

			for ( var i = 0, l = state.objects.length; i < l; i ++ ) {

				var object = state.objects[ i ];
				var geometry = object.geometry;
				var materials = object.materials;
				var isLine = ( geometry.type === 'Line' );
				var isPoints = ( geometry.type === 'Points' );
				var hasVertexColors = false;

				// Skip o/g line declarations that did not follow with any faces
				if ( geometry.vertices.length === 0 ) continue;

				var buffergeometry = new THREE.BufferGeometry();

				buffergeometry.addAttribute( 'position', new THREE.Float32BufferAttribute( geometry.vertices, 3 ) );

				if ( geometry.normals.length > 0 ) {

					buffergeometry.addAttribute( 'normal', new THREE.Float32BufferAttribute( geometry.normals, 3 ) );

				} else {

					buffergeometry.computeVertexNormals();

				}

				if ( geometry.colors.length > 0 ) {

					hasVertexColors = true;
					buffergeometry.addAttribute( 'color', new THREE.Float32BufferAttribute( geometry.colors, 3 ) );

				}

				if ( geometry.uvs.length > 0 ) {

					buffergeometry.addAttribute( 'uv', new THREE.Float32BufferAttribute( geometry.uvs, 2 ) );

				}

				// Create materials

				var createdMaterials = [];

				for ( var mi = 0, miLen = materials.length; mi < miLen; mi ++ ) {

					var sourceMaterial = materials[ mi ];
					var material = undefined;

					if ( this.materials !== null ) {

						material = this.materials.create( sourceMaterial.name );

						// mtl etc. loaders probably can't create line materials correctly, copy properties to a line material.
						if ( isLine && material && ! ( material instanceof THREE.LineBasicMaterial ) ) {

							var materialLine = new THREE.LineBasicMaterial();
							materialLine.copy( material );
							materialLine.lights = false; // TOFIX
							material = materialLine;

						} else if ( isPoints && material && ! ( material instanceof THREE.PointsMaterial ) ) {

							var materialPoints = new THREE.PointsMaterial( { size: 10, sizeAttenuation: false } );
							materialLine.copy( material );
							material = materialPoints;

						}

					}

					if ( ! material ) {

						if ( isLine ) {

							material = new THREE.LineBasicMaterial();

						} else if ( isPoints ) {

							material = new THREE.PointsMaterial( { size: 1, sizeAttenuation: false } );

						} else {

							material = new THREE.MeshPhongMaterial();

						}

						material.name = sourceMaterial.name;

					}

					material.flatShading = sourceMaterial.smooth ? false : true;
					material.vertexColors = hasVertexColors ? THREE.VertexColors : THREE.NoColors;

					createdMaterials.push( material );

				}

				// Create mesh

				var mesh;

				if ( createdMaterials.length > 1 ) {

					for ( var mi = 0, miLen = materials.length; mi < miLen; mi ++ ) {

						var sourceMaterial = materials[ mi ];
						buffergeometry.addGroup( sourceMaterial.groupStart, sourceMaterial.groupCount, mi );

					}

					if ( isLine ) {

						mesh = new THREE.LineSegments( buffergeometry, createdMaterials );

					} else if ( isPoints ) {

						mesh = new THREE.Points( buffergeometry, createdMaterials );

					} else {

						mesh = new THREE.Mesh( buffergeometry, createdMaterials );

					}

				} else {

					if ( isLine ) {

						mesh = new THREE.LineSegments( buffergeometry, createdMaterials[ 0 ] );

					} else if ( isPoints ) {

						mesh = new THREE.Points( buffergeometry, createdMaterials[ 0 ] );

					} else {

						mesh = new THREE.Mesh( buffergeometry, createdMaterials[ 0 ] );

					}

				}

				mesh.name = object.name;

				container.add( mesh );

			}

			console.timeEnd( 'OBJLoader' );

			return container;

		}

	};

	return OBJLoader;

} )();
;// Copyright 2016 The Draco Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
'use strict';

/**
 * @param {THREE.LoadingManager} manager
 */
THREE.DRACOLoader = function(manager) {
    this.timeLoaded = 0;
    this.manager = manager || THREE.DefaultLoadingManager;
    this.materials = null;
    this.verbosity = 0;
    this.attributeOptions = {};
    this.drawMode = THREE.TrianglesDrawMode;
    // Native Draco attribute type to Three.JS attribute type.
    this.nativeAttributeMap = {
      'position' : 'POSITION',
      'normal' : 'NORMAL',
      'color' : 'COLOR',
      'uv' : 'TEX_COORD'
    };
};

THREE.DRACOLoader.prototype = {

    constructor: THREE.DRACOLoader,

    load: function(url, onLoad, onProgress, onError) {
        var scope = this;
        var loader = new THREE.FileLoader(scope.manager);
        loader.setPath(this.path);
        loader.setResponseType('arraybuffer');
        loader.load(url, function(blob) {
            scope.decodeDracoFile(blob, onLoad);
        }, onProgress, onError);
    },

    setPath: function(value) {
        this.path = value;
        return this;
    },

    setVerbosity: function(level) {
        this.verbosity = level;
        return this;
    },

    /**
     *  Sets desired mode for generated geometry indices.
     *  Can be either:
     *      THREE.TrianglesDrawMode
     *      THREE.TriangleStripDrawMode
     */
    setDrawMode: function(drawMode) {
        this.drawMode = drawMode;
        return this;
    },

    /**
     * Skips dequantization for a specific attribute.
     * |attributeName| is the THREE.js name of the given attribute type.
     * The only currently supported |attributeName| is 'position', more may be
     * added in future.
     */
    setSkipDequantization: function(attributeName, skip) {
        var skipDequantization = true;
        if (typeof skip !== 'undefined')
          skipDequantization = skip;
        this.getAttributeOptions(attributeName).skipDequantization =
            skipDequantization;
        return this;
    },

    /**
     * |attributeUniqueIdMap| specifies attribute unique id for an attribute in
     * the geometry to be decoded. The name of the attribute must be one of the
     * supported attribute type in Three.JS, including:
     *     'position',
     *     'color',
     *     'normal',
     *     'uv',
     *     'uv2',
     *     'skinIndex',
     *     'skinWeight'.
     * The format is:
     *     attributeUniqueIdMap[attributeName] = attributeId
     */
    decodeDracoFile: function(rawBuffer, callback, attributeUniqueIdMap,
                              attributeTypeMap) {
      var scope = this;
      THREE.DRACOLoader.getDecoderModule()
          .then( function ( module ) {
            scope.decodeDracoFileInternal( rawBuffer, module.decoder, callback,
              attributeUniqueIdMap || {}, attributeTypeMap || {});
          });
    },

    decodeDracoFileInternal: function(rawBuffer, dracoDecoder, callback,
                                      attributeUniqueIdMap, attributeTypeMap) {
      /*
       * Here is how to use Draco Javascript decoder and get the geometry.
       */
      var buffer = new dracoDecoder.DecoderBuffer();
      buffer.Init(new Int8Array(rawBuffer), rawBuffer.byteLength);
      var decoder = new dracoDecoder.Decoder();

      /*
       * Determine what type is this file: mesh or point cloud.
       */
      var geometryType = decoder.GetEncodedGeometryType(buffer);
      if (geometryType == dracoDecoder.TRIANGULAR_MESH) {
        if (this.verbosity > 0) {
          console.log('Loaded a mesh.');
        }
      } else if (geometryType == dracoDecoder.POINT_CLOUD) {
        if (this.verbosity > 0) {
          console.log('Loaded a point cloud.');
        }
      } else {
        var errorMsg = 'THREE.DRACOLoader: Unknown geometry type.';
        console.error(errorMsg);
        throw new Error(errorMsg);
      }
      callback(this.convertDracoGeometryTo3JS(dracoDecoder, decoder,
          geometryType, buffer, attributeUniqueIdMap, attributeTypeMap));
    },

    addAttributeToGeometry: function(dracoDecoder, decoder, dracoGeometry,
                                     attributeName, attributeType, attribute,
                                     geometry, geometryBuffer) {
      if (attribute.ptr === 0) {
        var errorMsg = 'THREE.DRACOLoader: No attribute ' + attributeName;
        console.error(errorMsg);
        throw new Error(errorMsg);
      }

      var numComponents = attribute.num_components();
      var numPoints = dracoGeometry.num_points();
      var numValues = numPoints * numComponents;
      var attributeData;
      var TypedBufferAttribute;

      switch ( attributeType ) {

        case Float32Array:
          attributeData = new dracoDecoder.DracoFloat32Array();
          decoder.GetAttributeFloatForAllPoints(
            dracoGeometry, attribute, attributeData);
          geometryBuffer[ attributeName ] = new Float32Array( numValues );
          TypedBufferAttribute = THREE.Float32BufferAttribute;
          break;

        case Int8Array:
          attributeData = new dracoDecoder.DracoInt8Array();
          decoder.GetAttributeInt8ForAllPoints(
            dracoGeometry, attribute, attributeData );
          geometryBuffer[ attributeName ] = new Int8Array( numValues );
          TypedBufferAttribute = THREE.Int8BufferAttribute;
          break;

        case Int16Array:
          attributeData = new dracoDecoder.DracoInt16Array();
          decoder.GetAttributeInt16ForAllPoints(
            dracoGeometry, attribute, attributeData);
          geometryBuffer[ attributeName ] = new Int16Array( numValues );
          TypedBufferAttribute = THREE.Int16BufferAttribute;
          break;

        case Int32Array:
          attributeData = new dracoDecoder.DracoInt32Array();
          decoder.GetAttributeInt32ForAllPoints(
            dracoGeometry, attribute, attributeData);
          geometryBuffer[ attributeName ] = new Int32Array( numValues );
          TypedBufferAttribute = THREE.Int32BufferAttribute;
          break;

        case Uint8Array:
          attributeData = new dracoDecoder.DracoUInt8Array();
          decoder.GetAttributeUInt8ForAllPoints(
            dracoGeometry, attribute, attributeData);
          geometryBuffer[ attributeName ] = new Uint8Array( numValues );
          TypedBufferAttribute = THREE.Uint8BufferAttribute;
          break;

        case Uint16Array:
          attributeData = new dracoDecoder.DracoUInt16Array();
          decoder.GetAttributeUInt16ForAllPoints(
            dracoGeometry, attribute, attributeData);
          geometryBuffer[ attributeName ] = new Uint16Array( numValues );
          TypedBufferAttribute = THREE.Uint16BufferAttribute;
          break;

        case Uint32Array:
          attributeData = new dracoDecoder.DracoUInt32Array();
          decoder.GetAttributeUInt32ForAllPoints(
            dracoGeometry, attribute, attributeData);
          geometryBuffer[ attributeName ] = new Uint32Array( numValues );
          TypedBufferAttribute = THREE.Uint32BufferAttribute;
          break;

        default:
          var errorMsg = 'THREE.DRACOLoader: Unexpected attribute type.';
          console.error( errorMsg );
          throw new Error( errorMsg );

      }

      // Copy data from decoder.
      for (var i = 0; i < numValues; i++) {
        geometryBuffer[attributeName][i] = attributeData.GetValue(i);
      }
      // Add attribute to THREEJS geometry for rendering.
      geometry.addAttribute(attributeName,
          new TypedBufferAttribute(geometryBuffer[attributeName],
            numComponents));
      dracoDecoder.destroy(attributeData);
    },

    convertDracoGeometryTo3JS: function(dracoDecoder, decoder, geometryType,
                                        buffer, attributeUniqueIdMap,
                                        attributeTypeMap) {
        if (this.getAttributeOptions('position').skipDequantization === true) {
          decoder.SkipAttributeTransform(dracoDecoder.POSITION);
        }
        var dracoGeometry;
        var decodingStatus;
        const start_time = performance.now();
        if (geometryType === dracoDecoder.TRIANGULAR_MESH) {
          dracoGeometry = new dracoDecoder.Mesh();
          decodingStatus = decoder.DecodeBufferToMesh(buffer, dracoGeometry);
        } else {
          dracoGeometry = new dracoDecoder.PointCloud();
          decodingStatus =
              decoder.DecodeBufferToPointCloud(buffer, dracoGeometry);
        }
        if (!decodingStatus.ok() || dracoGeometry.ptr == 0) {
          var errorMsg = 'THREE.DRACOLoader: Decoding failed: ';
          errorMsg += decodingStatus.error_msg();
          console.error(errorMsg);
          dracoDecoder.destroy(decoder);
          dracoDecoder.destroy(dracoGeometry);
          throw new Error(errorMsg);
        }

        var decode_end = performance.now();
        dracoDecoder.destroy(buffer);
        /*
         * Example on how to retrieve mesh and attributes.
         */
        var numFaces;
        if (geometryType == dracoDecoder.TRIANGULAR_MESH) {
          numFaces = dracoGeometry.num_faces();
          if (this.verbosity > 0) {
            console.log('Number of faces loaded: ' + numFaces.toString());
          }
        } else {
          numFaces = 0;
        }

        var numPoints = dracoGeometry.num_points();
        var numAttributes = dracoGeometry.num_attributes();
        if (this.verbosity > 0) {
          console.log('Number of points loaded: ' + numPoints.toString());
          console.log('Number of attributes loaded: ' +
              numAttributes.toString());
        }

        // Verify if there is position attribute.
        var posAttId = decoder.GetAttributeId(dracoGeometry,
                                              dracoDecoder.POSITION);
        if (posAttId == -1) {
          var errorMsg = 'THREE.DRACOLoader: No position attribute found.';
          console.error(errorMsg);
          dracoDecoder.destroy(decoder);
          dracoDecoder.destroy(dracoGeometry);
          throw new Error(errorMsg);
        }
        var posAttribute = decoder.GetAttribute(dracoGeometry, posAttId);

        // Structure for converting to THREEJS geometry later.
        var geometryBuffer = {};
        // Import data to Three JS geometry.
        var geometry = new THREE.BufferGeometry();

        // Add native Draco attribute type to geometry.
        for (var attributeName in this.nativeAttributeMap) {
          // The native attribute type is only used when no unique Id is
          // provided. For example, loading .drc files.
          if (attributeUniqueIdMap[attributeName] === undefined) {
            var attId = decoder.GetAttributeId(dracoGeometry,
                dracoDecoder[this.nativeAttributeMap[attributeName]]);
            if (attId !== -1) {
              if (this.verbosity > 0) {
                console.log('Loaded ' + attributeName + ' attribute.');
              }
              var attribute = decoder.GetAttribute(dracoGeometry, attId);
              this.addAttributeToGeometry(dracoDecoder, decoder, dracoGeometry,
                  attributeName, Float32Array, attribute, geometry, geometryBuffer);
            }
          }
        }

        // Add attributes of user specified unique id. E.g. GLTF models.
        for (var attributeName in attributeUniqueIdMap) {
          var attributeType = attributeTypeMap[attributeName] || Float32Array;
          var attributeId = attributeUniqueIdMap[attributeName];
          var attribute = decoder.GetAttributeByUniqueId(dracoGeometry,
                                                         attributeId);
          this.addAttributeToGeometry(dracoDecoder, decoder, dracoGeometry,
              attributeName, attributeType, attribute, geometry, geometryBuffer);
        }

        // For mesh, we need to generate the faces.
        if (geometryType == dracoDecoder.TRIANGULAR_MESH) {
          if (this.drawMode === THREE.TriangleStripDrawMode) {
            var stripsArray = new dracoDecoder.DracoInt32Array();
            var numStrips = decoder.GetTriangleStripsFromMesh(
                dracoGeometry, stripsArray);
            geometryBuffer.indices = new Uint32Array(stripsArray.size());
            for (var i = 0; i < stripsArray.size(); ++i) {
              geometryBuffer.indices[i] = stripsArray.GetValue(i);
            }
            dracoDecoder.destroy(stripsArray);
          } else {
            var numIndices = numFaces * 3;
            geometryBuffer.indices = new Uint32Array(numIndices);
            var ia = new dracoDecoder.DracoInt32Array();
            for (var i = 0; i < numFaces; ++i) {
              decoder.GetFaceFromMesh(dracoGeometry, i, ia);
              var index = i * 3;
              geometryBuffer.indices[index] = ia.GetValue(0);
              geometryBuffer.indices[index + 1] = ia.GetValue(1);
              geometryBuffer.indices[index + 2] = ia.GetValue(2);
            }
            dracoDecoder.destroy(ia);
         }
        }

        geometry.drawMode = this.drawMode;
        if (geometryType == dracoDecoder.TRIANGULAR_MESH) {
          geometry.setIndex(new(geometryBuffer.indices.length > 65535 ?
                THREE.Uint32BufferAttribute : THREE.Uint16BufferAttribute)
              (geometryBuffer.indices, 1));
        }
        var posTransform = new dracoDecoder.AttributeQuantizationTransform();
        if (posTransform.InitFromAttribute(posAttribute)) {
          // Quantized attribute. Store the quantization parameters into the
          // THREE.js attribute.
          geometry.attributes['position'].isQuantized = true;
          geometry.attributes['position'].maxRange = posTransform.range();
          geometry.attributes['position'].numQuantizationBits =
              posTransform.quantization_bits();
          geometry.attributes['position'].minValues = new Float32Array(3);
          for (var i = 0; i < 3; ++i) {
            geometry.attributes['position'].minValues[i] =
                posTransform.min_value(i);
          }
        }
        dracoDecoder.destroy(posTransform);
        dracoDecoder.destroy(decoder);
        dracoDecoder.destroy(dracoGeometry);

        this.decode_time = decode_end - start_time;
        this.import_time = performance.now() - decode_end;

        if (this.verbosity > 0) {
          console.log('Decode time: ' + this.decode_time);
          console.log('Import time: ' + this.import_time);
        }
        return geometry;
    },

    isVersionSupported: function(version, callback) {
        THREE.DRACOLoader.getDecoderModule()
            .then( function ( module ) {
              callback( module.decoder.isVersionSupported( version ) );
            });
    },

    getAttributeOptions: function(attributeName) {
        if (typeof this.attributeOptions[attributeName] === 'undefined')
          this.attributeOptions[attributeName] = {};
        return this.attributeOptions[attributeName];
    }
};

THREE.DRACOLoader.decoderPath = './';
THREE.DRACOLoader.decoderConfig = {};
THREE.DRACOLoader.decoderModulePromise = null;

/**
 * Sets the base path for decoder source files.
 * @param {string} path
 */
THREE.DRACOLoader.setDecoderPath = function ( path ) {
  THREE.DRACOLoader.decoderPath = path;
};

/**
 * Sets decoder configuration and releases singleton decoder module. Module
 * will be recreated with the next decoding call.
 * @param {Object} config
 */
THREE.DRACOLoader.setDecoderConfig = function ( config ) {
  var wasmBinary = THREE.DRACOLoader.decoderConfig.wasmBinary;
  THREE.DRACOLoader.decoderConfig = config || {};
  THREE.DRACOLoader.releaseDecoderModule();

  // Reuse WASM binary.
  if ( wasmBinary ) THREE.DRACOLoader.decoderConfig.wasmBinary = wasmBinary;
};

/**
 * Releases the singleton DracoDecoderModule instance. Module will be recreated
 * with the next decoding call.
 */
THREE.DRACOLoader.releaseDecoderModule = function () {
  THREE.DRACOLoader.decoderModulePromise = null;
};

/**
 * Gets WebAssembly or asm.js singleton instance of DracoDecoderModule
 * after testing for browser support. Returns Promise that resolves when
 * module is available.
 * @return {Promise<{decoder: DracoDecoderModule}>}
 */
THREE.DRACOLoader.getDecoderModule = function () {
  var scope = this;
  var path = THREE.DRACOLoader.decoderPath;
  var config = THREE.DRACOLoader.decoderConfig;
  var promise = THREE.DRACOLoader.decoderModulePromise;

  if ( promise ) return promise;

  // Load source files.
  if ( typeof DracoDecoderModule !== 'undefined' ) {
    // Loaded externally.
    promise = Promise.resolve();
  } else if ( typeof WebAssembly !== 'object' || config.type === 'js' ) {
    // Load with asm.js.
    promise = THREE.DRACOLoader._loadScript( path + 'draco_decoder.js' );
  } else {
    // Load with WebAssembly.
    config.wasmBinaryFile = path + 'draco_decoder.wasm';
    promise = THREE.DRACOLoader._loadScript( path + 'draco_wasm_wrapper.js' )
        .then( function () {
          return THREE.DRACOLoader._loadArrayBuffer( config.wasmBinaryFile );
        } )
        .then( function ( wasmBinary ) {
          config.wasmBinary = wasmBinary;
        } );
  }

  // Wait for source files, then create and return a decoder.
  promise = promise.then( function () {
    return new Promise( function ( resolve ) {
      config.onModuleLoaded = function ( decoder ) {
        scope.timeLoaded = performance.now();
        // Module is Promise-like. Wrap before resolving to avoid loop.
        resolve( { decoder: decoder } );
      };
      DracoDecoderModule( config );
    } );
  } );

  THREE.DRACOLoader.decoderModulePromise = promise;
  return promise;
};

/**
 * @param {string} src
 * @return {Promise}
 */
THREE.DRACOLoader._loadScript = function ( src ) {
  var prevScript = document.getElementById( 'decoder_script' );
  if ( prevScript !== null ) {
    prevScript.parentNode.removeChild( prevScript );
  }
  var head = document.getElementsByTagName( 'head' )[ 0 ];
  var script = document.createElement( 'script' );
  script.id = 'decoder_script';
  script.type = 'text/javascript';
  script.src = src;
  return new Promise( function ( resolve ) {
    script.onload = resolve;
    head.appendChild( script );
  });
};

/**
 * @param {string} src
 * @return {Promise}
 */
THREE.DRACOLoader._loadArrayBuffer = function ( src ) {
  var loader = new THREE.FileLoader();
  loader.setResponseType( 'arraybuffer' );
  return new Promise( function( resolve, reject ) {
    loader.load( src, resolve, undefined, reject );
  });
};
;/**
 * @author Rich Tibbett / https://github.com/richtr
 * @author mrdoob / http://mrdoob.com/
 * @author Tony Parisi / http://www.tonyparisi.com/
 * @author Takahiro / https://github.com/takahirox
 * @author Don McCurdy / https://www.donmccurdy.com
 */

 THREE.GLTFLoader = ( function () {

	function GLTFLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
		this.dracoLoader = null;

	}

	GLTFLoader.prototype = {

		constructor: GLTFLoader,

		crossOrigin: 'anonymous',

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var path = this.path !== undefined ? this.path : THREE.LoaderUtils.extractUrlBase( url );

			// Tells the LoadingManager to track an extra item, which resolves after
			// the model is fully loaded. This means the count of items loaded will
			// be incorrect, but ensures manager.onLoad() does not fire early.
			scope.manager.itemStart( url );

			var _onError = function ( e ) {

				if ( onError ) {

					onError( e );

				} else {

					console.error( e );

				}

				scope.manager.itemEnd( url );
				scope.manager.itemError( url );

			};

			var loader = new THREE.FileLoader( scope.manager );

			loader.setResponseType( 'arraybuffer' );

			loader.load( url, function ( data ) {

				try {

					scope.parse( data, path, function ( gltf ) {

						onLoad( gltf );

						scope.manager.itemEnd( url );

					}, _onError );

				} catch ( e ) {

					_onError( e );

				}

			}, onProgress, _onError );

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		},

		setDRACOLoader: function ( dracoLoader ) {

			this.dracoLoader = dracoLoader;
			return this;

		},

		parse: function ( data, path, onLoad, onError ) {

			var content;
			var extensions = {};

			if ( typeof data === 'string' ) {

				content = data;

			} else {

				var magic = THREE.LoaderUtils.decodeText( new Uint8Array( data, 0, 4 ) );

				if ( magic === BINARY_EXTENSION_HEADER_MAGIC ) {

					try {

						extensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data );

					} catch ( error ) {

						if ( onError ) onError( error );
						return;

					}

					content = extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content;

				} else {

					content = THREE.LoaderUtils.decodeText( new Uint8Array( data ) );

				}

			}

			var json = JSON.parse( content );

			if ( json.asset === undefined || json.asset.version[ 0 ] < 2 ) {

				if ( onError ) onError( new Error( 'THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported. Use LegacyGLTFLoader instead.' ) );
				return;

			}

			if ( json.extensionsUsed ) {

				for ( var i = 0; i < json.extensionsUsed.length; ++ i ) {

					var extensionName = json.extensionsUsed[ i ];
					var extensionsRequired = json.extensionsRequired || [];

					switch ( extensionName ) {

						case EXTENSIONS.KHR_LIGHTS_PUNCTUAL:
							extensions[ extensionName ] = new GLTFLightsExtension( json );
							break;

						case EXTENSIONS.KHR_MATERIALS_UNLIT:
							extensions[ extensionName ] = new GLTFMaterialsUnlitExtension( json );
							break;

						case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:
							extensions[ extensionName ] = new GLTFMaterialsPbrSpecularGlossinessExtension();
							break;

						case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
							extensions[ extensionName ] = new GLTFDracoMeshCompressionExtension( json, this.dracoLoader );
							break;

						case EXTENSIONS.MSFT_TEXTURE_DDS:
							extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] = new GLTFTextureDDSExtension();
							break;

						default:

							if ( extensionsRequired.indexOf( extensionName ) >= 0 ) {

								console.warn( 'THREE.GLTFLoader: Unknown extension "' + extensionName + '".' );

							}

					}

				}

			}

			var parser = new GLTFParser( json, extensions, {

				path: path || this.path || '',
				crossOrigin: this.crossOrigin,
				manager: this.manager

			} );

			parser.parse( function ( scene, scenes, cameras, animations, json ) {

				var glTF = {
					scene: scene,
					scenes: scenes,
					cameras: cameras,
					animations: animations,
					asset: json.asset,
					parser: parser,
					userData: {}
				};

				addUnknownExtensionsToUserData( extensions, glTF, json );

				onLoad( glTF );

			}, onError );

		}

	};

	/* GLTFREGISTRY */

	function GLTFRegistry() {

		var objects = {};

		return	{

			get: function ( key ) {

				return objects[ key ];

			},

			add: function ( key, object ) {

				objects[ key ] = object;

			},

			remove: function ( key ) {

				delete objects[ key ];

			},

			removeAll: function () {

				objects = {};

			}

		};

	}

	/*********************************/
	/********** EXTENSIONS ***********/
	/*********************************/

	var EXTENSIONS = {
		KHR_BINARY_GLTF: 'KHR_binary_glTF',
		KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',
		KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',
		KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
		KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
		MSFT_TEXTURE_DDS: 'MSFT_texture_dds'
	};

	/**
	 * DDS Texture Extension
	 *
	 * Specification:
	 * https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/MSFT_texture_dds
	 *
	 */
	function GLTFTextureDDSExtension() {

		if ( ! THREE.DDSLoader ) {

			throw new Error( 'THREE.GLTFLoader: Attempting to load .dds texture without importing THREE.DDSLoader' );

		}

		this.name = EXTENSIONS.MSFT_TEXTURE_DDS;
		this.ddsLoader = new THREE.DDSLoader();

	}

	/**
	 * Lights Extension
	 *
	 * Specification: PENDING
	 */
	function GLTFLightsExtension( json ) {

		this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;

		this.lights = [];

		var extension = ( json.extensions && json.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ] ) || {};
		var lightDefs = extension.lights || [];

		for ( var i = 0; i < lightDefs.length; i ++ ) {

			var lightDef = lightDefs[ i ];
			var lightNode;

			var color = new THREE.Color( 0xffffff );
			if ( lightDef.color !== undefined ) color.fromArray( lightDef.color );

			var range = lightDef.range !== undefined ? lightDef.range : 0;

			switch ( lightDef.type ) {

				case 'directional':
					lightNode = new THREE.DirectionalLight( color );
					lightNode.target.position.set( 0, 0, 1 );
					lightNode.add( lightNode.target );
					break;

				case 'point':
					lightNode = new THREE.PointLight( color );
					lightNode.distance = range;
					break;

				case 'spot':
					lightNode = new THREE.SpotLight( color );
					lightNode.distance = range;
					// Handle spotlight properties.
					lightDef.spot = lightDef.spot || {};
					lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle : 0;
					lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0;
					lightNode.angle = lightDef.spot.outerConeAngle;
					lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
					lightNode.target.position.set( 0, 0, 1 );
					lightNode.add( lightNode.target );
					break;

				default:
					throw new Error( 'THREE.GLTFLoader: Unexpected light type, "' + lightDef.type + '".' );

			}

			lightNode.decay = 2;

			if ( lightDef.intensity !== undefined ) lightNode.intensity = lightDef.intensity;

			lightNode.name = lightDef.name || ( 'light_' + i );

			this.lights.push( lightNode );

		}

	}

	/**
	 * Unlit Materials Extension (pending)
	 *
	 * PR: https://github.com/KhronosGroup/glTF/pull/1163
	 */
	function GLTFMaterialsUnlitExtension( json ) {

		this.name = EXTENSIONS.KHR_MATERIALS_UNLIT;

	}

	GLTFMaterialsUnlitExtension.prototype.getMaterialType = function ( material ) {

		return THREE.MeshBasicMaterial;

	};

	GLTFMaterialsUnlitExtension.prototype.extendParams = function ( materialParams, material, parser ) {

		var pending = [];

		materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
		materialParams.opacity = 1.0;

		var metallicRoughness = material.pbrMetallicRoughness;

		if ( metallicRoughness ) {

			if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {

				var array = metallicRoughness.baseColorFactor;

				materialParams.color.fromArray( array );
				materialParams.opacity = array[ 3 ];

			}

			if ( metallicRoughness.baseColorTexture !== undefined ) {

				pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture.index ) );

			}

		}

		return Promise.all( pending );

	};

	/* BINARY EXTENSION */

	var BINARY_EXTENSION_BUFFER_NAME = 'binary_glTF';
	var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
	var BINARY_EXTENSION_HEADER_LENGTH = 12;
	var BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 };

	function GLTFBinaryExtension( data ) {

		this.name = EXTENSIONS.KHR_BINARY_GLTF;
		this.content = null;
		this.body = null;

		var headerView = new DataView( data, 0, BINARY_EXTENSION_HEADER_LENGTH );

		this.header = {
			magic: THREE.LoaderUtils.decodeText( new Uint8Array( data.slice( 0, 4 ) ) ),
			version: headerView.getUint32( 4, true ),
			length: headerView.getUint32( 8, true )
		};

		if ( this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC ) {

			throw new Error( 'THREE.GLTFLoader: Unsupported glTF-Binary header.' );

		} else if ( this.header.version < 2.0 ) {

			throw new Error( 'THREE.GLTFLoader: Legacy binary file detected. Use LegacyGLTFLoader instead.' );

		}

		var chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH );
		var chunkIndex = 0;

		while ( chunkIndex < chunkView.byteLength ) {

			var chunkLength = chunkView.getUint32( chunkIndex, true );
			chunkIndex += 4;

			var chunkType = chunkView.getUint32( chunkIndex, true );
			chunkIndex += 4;

			if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON ) {

				var contentArray = new Uint8Array( data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength );
				this.content = THREE.LoaderUtils.decodeText( contentArray );

			} else if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN ) {

				var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
				this.body = data.slice( byteOffset, byteOffset + chunkLength );

			}

			// Clients must ignore chunks with unknown types.

			chunkIndex += chunkLength;

		}

		if ( this.content === null ) {

			throw new Error( 'THREE.GLTFLoader: JSON content not found.' );

		}

	}

	/**
	 * DRACO Mesh Compression Extension
	 *
	 * Specification: https://github.com/KhronosGroup/glTF/pull/874
	 */
	function GLTFDracoMeshCompressionExtension( json, dracoLoader ) {

		if ( ! dracoLoader ) {

			throw new Error( 'THREE.GLTFLoader: No DRACOLoader instance provided.' );

		}

		this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
		this.json = json;
		this.dracoLoader = dracoLoader;

	}

	GLTFDracoMeshCompressionExtension.prototype.decodePrimitive = function ( primitive, parser ) {

		var json = this.json;
		var dracoLoader = this.dracoLoader;
		var bufferViewIndex = primitive.extensions[ this.name ].bufferView;
		var gltfAttributeMap = primitive.extensions[ this.name ].attributes;
		var threeAttributeMap = {};
		var attributeNormalizedMap = {};
		var attributeTypeMap = {};

		for ( var attributeName in gltfAttributeMap ) {

			if ( ! ( attributeName in ATTRIBUTES ) ) continue;

			threeAttributeMap[ ATTRIBUTES[ attributeName ] ] = gltfAttributeMap[ attributeName ];

		}

		for ( attributeName in primitive.attributes ) {

			if ( ATTRIBUTES[ attributeName ] !== undefined && gltfAttributeMap[ attributeName ] !== undefined ) {

				var accessorDef = json.accessors[ primitive.attributes[ attributeName ] ];
				var componentType = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];

				attributeTypeMap[ ATTRIBUTES[ attributeName ] ] = componentType;
				attributeNormalizedMap[ ATTRIBUTES[ attributeName ] ] = accessorDef.normalized === true;

			}

		}

		return parser.getDependency( 'bufferView', bufferViewIndex ).then( function ( bufferView ) {

			return new Promise( function ( resolve ) {

				dracoLoader.decodeDracoFile( bufferView, function ( geometry ) {

					for ( var attributeName in geometry.attributes ) {

						var attribute = geometry.attributes[ attributeName ];
						var normalized = attributeNormalizedMap[ attributeName ];

						if ( normalized !== undefined ) attribute.normalized = normalized;

					}

					resolve( geometry );

				}, threeAttributeMap, attributeTypeMap );

			} );

		} );

	};

	/**
	 * Specular-Glossiness Extension
	 *
	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness
	 */
	function GLTFMaterialsPbrSpecularGlossinessExtension() {

		return {

			name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,

			specularGlossinessParams: [
				'color',
				'map',
				'lightMap',
				'lightMapIntensity',
				'aoMap',
				'aoMapIntensity',
				'emissive',
				'emissiveIntensity',
				'emissiveMap',
				'bumpMap',
				'bumpScale',
				'normalMap',
				'displacementMap',
				'displacementScale',
				'displacementBias',
				'specularMap',
				'specular',
				'glossinessMap',
				'glossiness',
				'alphaMap',
				'envMap',
				'envMapIntensity',
				'refractionRatio',
			],

			getMaterialType: function () {

				return THREE.ShaderMaterial;

			},

			extendParams: function ( params, material, parser ) {

				var pbrSpecularGlossiness = material.extensions[ this.name ];

				var shader = THREE.ShaderLib[ 'standard' ];

				var uniforms = THREE.UniformsUtils.clone( shader.uniforms );

				var specularMapParsFragmentChunk = [
					'#ifdef USE_SPECULARMAP',
					'	uniform sampler2D specularMap;',
					'#endif'
				].join( '\n' );

				var glossinessMapParsFragmentChunk = [
					'#ifdef USE_GLOSSINESSMAP',
					'	uniform sampler2D glossinessMap;',
					'#endif'
				].join( '\n' );

				var specularMapFragmentChunk = [
					'vec3 specularFactor = specular;',
					'#ifdef USE_SPECULARMAP',
					'	vec4 texelSpecular = texture2D( specularMap, vUv );',
					'	texelSpecular = sRGBToLinear( texelSpecular );',
					'	// reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture',
					'	specularFactor *= texelSpecular.rgb;',
					'#endif'
				].join( '\n' );

				var glossinessMapFragmentChunk = [
					'float glossinessFactor = glossiness;',
					'#ifdef USE_GLOSSINESSMAP',
					'	vec4 texelGlossiness = texture2D( glossinessMap, vUv );',
					'	// reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture',
					'	glossinessFactor *= texelGlossiness.a;',
					'#endif'
				].join( '\n' );

				var lightPhysicalFragmentChunk = [
					'PhysicalMaterial material;',
					'material.diffuseColor = diffuseColor.rgb;',
					'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );',
					'material.specularColor = specularFactor.rgb;',
				].join( '\n' );

				var fragmentShader = shader.fragmentShader
					.replace( 'uniform float roughness;', 'uniform vec3 specular;' )
					.replace( 'uniform float metalness;', 'uniform float glossiness;' )
					.replace( '#include <roughnessmap_pars_fragment>', specularMapParsFragmentChunk )
					.replace( '#include <metalnessmap_pars_fragment>', glossinessMapParsFragmentChunk )
					.replace( '#include <roughnessmap_fragment>', specularMapFragmentChunk )
					.replace( '#include <metalnessmap_fragment>', glossinessMapFragmentChunk )
					.replace( '#include <lights_physical_fragment>', lightPhysicalFragmentChunk );

				delete uniforms.roughness;
				delete uniforms.metalness;
				delete uniforms.roughnessMap;
				delete uniforms.metalnessMap;

				uniforms.specular = { value: new THREE.Color().setHex( 0x111111 ) };
				uniforms.glossiness = { value: 0.5 };
				uniforms.specularMap = { value: null };
				uniforms.glossinessMap = { value: null };

				params.vertexShader = shader.vertexShader;
				params.fragmentShader = fragmentShader;
				params.uniforms = uniforms;
				params.defines = { 'STANDARD': '' };

				params.color = new THREE.Color( 1.0, 1.0, 1.0 );
				params.opacity = 1.0;

				var pending = [];

				if ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) {

					var array = pbrSpecularGlossiness.diffuseFactor;

					params.color.fromArray( array );
					params.opacity = array[ 3 ];

				}

				if ( pbrSpecularGlossiness.diffuseTexture !== undefined ) {

					pending.push( parser.assignTexture( params, 'map', pbrSpecularGlossiness.diffuseTexture.index ) );

				}

				params.emissive = new THREE.Color( 0.0, 0.0, 0.0 );
				params.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
				params.specular = new THREE.Color( 1.0, 1.0, 1.0 );

				if ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) {

					params.specular.fromArray( pbrSpecularGlossiness.specularFactor );

				}

				if ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) {

					var specGlossIndex = pbrSpecularGlossiness.specularGlossinessTexture.index;
					pending.push( parser.assignTexture( params, 'glossinessMap', specGlossIndex ) );
					pending.push( parser.assignTexture( params, 'specularMap', specGlossIndex ) );

				}

				return Promise.all( pending );

			},

			createMaterial: function ( params ) {

				// setup material properties based on MeshStandardMaterial for Specular-Glossiness

				var material = new THREE.ShaderMaterial( {
					defines: params.defines,
					vertexShader: params.vertexShader,
					fragmentShader: params.fragmentShader,
					uniforms: params.uniforms,
					fog: true,
					lights: true,
					opacity: params.opacity,
					transparent: params.transparent
				} );

				material.isGLTFSpecularGlossinessMaterial = true;

				material.color = params.color;

				material.map = params.map === undefined ? null : params.map;

				material.lightMap = null;
				material.lightMapIntensity = 1.0;

				material.aoMap = params.aoMap === undefined ? null : params.aoMap;
				material.aoMapIntensity = 1.0;

				material.emissive = params.emissive;
				material.emissiveIntensity = 1.0;
				material.emissiveMap = params.emissiveMap === undefined ? null : params.emissiveMap;

				material.bumpMap = params.bumpMap === undefined ? null : params.bumpMap;
				material.bumpScale = 1;

				material.normalMap = params.normalMap === undefined ? null : params.normalMap;
				if ( params.normalScale ) material.normalScale = params.normalScale;

				material.displacementMap = null;
				material.displacementScale = 1;
				material.displacementBias = 0;

				material.specularMap = params.specularMap === undefined ? null : params.specularMap;
				material.specular = params.specular;

				material.glossinessMap = params.glossinessMap === undefined ? null : params.glossinessMap;
				material.glossiness = params.glossiness;

				material.alphaMap = null;

				material.envMap = params.envMap === undefined ? null : params.envMap;
				material.envMapIntensity = 1.0;

				material.refractionRatio = 0.98;

				material.extensions.derivatives = true;

				return material;

			},

			/**
			 * Clones a GLTFSpecularGlossinessMaterial instance. The ShaderMaterial.copy() method can
			 * copy only properties it knows about or inherits, and misses many properties that would
			 * normally be defined by MeshStandardMaterial.
			 *
			 * This method allows GLTFSpecularGlossinessMaterials to be cloned in the process of
			 * loading a glTF model, but cloning later (e.g. by the user) would require these changes
			 * AND also updating `.onBeforeRender` on the parent mesh.
			 *
			 * @param  {THREE.ShaderMaterial} source
			 * @return {THREE.ShaderMaterial}
			 */
			cloneMaterial: function ( source ) {

				var target = source.clone();

				target.isGLTFSpecularGlossinessMaterial = true;

				var params = this.specularGlossinessParams;

				for ( var i = 0, il = params.length; i < il; i ++ ) {

					target[ params[ i ] ] = source[ params[ i ] ];

				}

				return target;

			},

			// Here's based on refreshUniformsCommon() and refreshUniformsStandard() in WebGLRenderer.
			refreshUniforms: function ( renderer, scene, camera, geometry, material, group ) {

				if ( material.isGLTFSpecularGlossinessMaterial !== true ) {

					return;

				}

				var uniforms = material.uniforms;
				var defines = material.defines;

				uniforms.opacity.value = material.opacity;

				uniforms.diffuse.value.copy( material.color );
				uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );

				uniforms.map.value = material.map;
				uniforms.specularMap.value = material.specularMap;
				uniforms.alphaMap.value = material.alphaMap;

				uniforms.lightMap.value = material.lightMap;
				uniforms.lightMapIntensity.value = material.lightMapIntensity;

				uniforms.aoMap.value = material.aoMap;
				uniforms.aoMapIntensity.value = material.aoMapIntensity;

				// uv repeat and offset setting priorities
				// 1. color map
				// 2. specular map
				// 3. normal map
				// 4. bump map
				// 5. alpha map
				// 6. emissive map

				var uvScaleMap;

				if ( material.map ) {

					uvScaleMap = material.map;

				} else if ( material.specularMap ) {

					uvScaleMap = material.specularMap;

				} else if ( material.displacementMap ) {

					uvScaleMap = material.displacementMap;

				} else if ( material.normalMap ) {

					uvScaleMap = material.normalMap;

				} else if ( material.bumpMap ) {

					uvScaleMap = material.bumpMap;

				} else if ( material.glossinessMap ) {

					uvScaleMap = material.glossinessMap;

				} else if ( material.alphaMap ) {

					uvScaleMap = material.alphaMap;

				} else if ( material.emissiveMap ) {

					uvScaleMap = material.emissiveMap;

				}

				if ( uvScaleMap !== undefined ) {

					// backwards compatibility
					if ( uvScaleMap.isWebGLRenderTarget ) {

						uvScaleMap = uvScaleMap.texture;

					}

					if ( uvScaleMap.matrixAutoUpdate === true ) {

						uvScaleMap.updateMatrix();

					}

					uniforms.uvTransform.value.copy( uvScaleMap.matrix );

				}

				uniforms.envMap.value = material.envMap;
				uniforms.envMapIntensity.value = material.envMapIntensity;
				uniforms.flipEnvMap.value = ( material.envMap && material.envMap.isCubeTexture ) ? - 1 : 1;

				uniforms.refractionRatio.value = material.refractionRatio;

				uniforms.specular.value.copy( material.specular );
				uniforms.glossiness.value = material.glossiness;

				uniforms.glossinessMap.value = material.glossinessMap;

				uniforms.emissiveMap.value = material.emissiveMap;
				uniforms.bumpMap.value = material.bumpMap;
				uniforms.normalMap.value = material.normalMap;

				uniforms.displacementMap.value = material.displacementMap;
				uniforms.displacementScale.value = material.displacementScale;
				uniforms.displacementBias.value = material.displacementBias;

				if ( uniforms.glossinessMap.value !== null && defines.USE_GLOSSINESSMAP === undefined ) {

					defines.USE_GLOSSINESSMAP = '';
					// set USE_ROUGHNESSMAP to enable vUv
					defines.USE_ROUGHNESSMAP = '';

				}

				if ( uniforms.glossinessMap.value === null && defines.USE_GLOSSINESSMAP !== undefined ) {

					delete defines.USE_GLOSSINESSMAP;
					delete defines.USE_ROUGHNESSMAP;

				}

			}

		};

	}

	/*********************************/
	/********** INTERPOLATION ********/
	/*********************************/

	// Spline Interpolation
	// Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation
	function GLTFCubicSplineInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		THREE.Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	GLTFCubicSplineInterpolant.prototype = Object.create( THREE.Interpolant.prototype );
	GLTFCubicSplineInterpolant.prototype.constructor = GLTFCubicSplineInterpolant;

	GLTFCubicSplineInterpolant.prototype.copySampleValue_ = function ( index ) {

		// Copies a sample value to the result buffer. See description of glTF
		// CUBICSPLINE values layout in interpolate_() function below.

		var result = this.resultBuffer,
			values = this.sampleValues,
			valueSize = this.valueSize,
			offset = index * valueSize * 3 + valueSize;

		for ( var i = 0; i !== valueSize; i ++ ) {

			result[ i ] = values[ offset + i ];

		}

		return result;

	};

	GLTFCubicSplineInterpolant.prototype.beforeStart_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;

	GLTFCubicSplineInterpolant.prototype.afterEnd_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;

	GLTFCubicSplineInterpolant.prototype.interpolate_ = function ( i1, t0, t, t1 ) {

		var result = this.resultBuffer;
		var values = this.sampleValues;
		var stride = this.valueSize;

		var stride2 = stride * 2;
		var stride3 = stride * 3;

		var td = t1 - t0;

		var p = ( t - t0 ) / td;
		var pp = p * p;
		var ppp = pp * p;

		var offset1 = i1 * stride3;
		var offset0 = offset1 - stride3;

		var s0 = 2 * ppp - 3 * pp + 1;
		var s1 = ppp - 2 * pp + p;
		var s2 = - 2 * ppp + 3 * pp;
		var s3 = ppp - pp;

		// Layout of keyframe output values for CUBICSPLINE animations:
		//   [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]
		for ( var i = 0; i !== stride; i ++ ) {

			var p0 = values[ offset0 + i + stride ]; // splineVertex_k
			var m0 = values[ offset0 + i + stride2 ] * td; // outTangent_k * (t_k+1 - t_k)
			var p1 = values[ offset1 + i + stride ]; // splineVertex_k+1
			var m1 = values[ offset1 + i ] * td; // inTangent_k+1 * (t_k+1 - t_k)

			result[ i ] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1;

		}

		return result;

	};

	/*********************************/
	/********** INTERNALS ************/
	/*********************************/

	/* CONSTANTS */

	var WEBGL_CONSTANTS = {
		FLOAT: 5126,
		//FLOAT_MAT2: 35674,
		FLOAT_MAT3: 35675,
		FLOAT_MAT4: 35676,
		FLOAT_VEC2: 35664,
		FLOAT_VEC3: 35665,
		FLOAT_VEC4: 35666,
		LINEAR: 9729,
		REPEAT: 10497,
		SAMPLER_2D: 35678,
		POINTS: 0,
		LINES: 1,
		LINE_LOOP: 2,
		LINE_STRIP: 3,
		TRIANGLES: 4,
		TRIANGLE_STRIP: 5,
		TRIANGLE_FAN: 6,
		UNSIGNED_BYTE: 5121,
		UNSIGNED_SHORT: 5123
	};

	var WEBGL_TYPE = {
		5126: Number,
		//35674: THREE.Matrix2,
		35675: THREE.Matrix3,
		35676: THREE.Matrix4,
		35664: THREE.Vector2,
		35665: THREE.Vector3,
		35666: THREE.Vector4,
		35678: THREE.Texture
	};

	var WEBGL_COMPONENT_TYPES = {
		5120: Int8Array,
		5121: Uint8Array,
		5122: Int16Array,
		5123: Uint16Array,
		5125: Uint32Array,
		5126: Float32Array
	};

	var WEBGL_FILTERS = {
		9728: THREE.NearestFilter,
		9729: THREE.LinearFilter,
		9984: THREE.NearestMipMapNearestFilter,
		9985: THREE.LinearMipMapNearestFilter,
		9986: THREE.NearestMipMapLinearFilter,
		9987: THREE.LinearMipMapLinearFilter
	};

	var WEBGL_WRAPPINGS = {
		33071: THREE.ClampToEdgeWrapping,
		33648: THREE.MirroredRepeatWrapping,
		10497: THREE.RepeatWrapping
	};

	var WEBGL_SIDES = {
		1028: THREE.BackSide, // Culling front
		1029: THREE.FrontSide // Culling back
		//1032: THREE.NoSide   // Culling front and back, what to do?
	};

	var WEBGL_DEPTH_FUNCS = {
		512: THREE.NeverDepth,
		513: THREE.LessDepth,
		514: THREE.EqualDepth,
		515: THREE.LessEqualDepth,
		516: THREE.GreaterEqualDepth,
		517: THREE.NotEqualDepth,
		518: THREE.GreaterEqualDepth,
		519: THREE.AlwaysDepth
	};

	var WEBGL_BLEND_EQUATIONS = {
		32774: THREE.AddEquation,
		32778: THREE.SubtractEquation,
		32779: THREE.ReverseSubtractEquation
	};

	var WEBGL_BLEND_FUNCS = {
		0: THREE.ZeroFactor,
		1: THREE.OneFactor,
		768: THREE.SrcColorFactor,
		769: THREE.OneMinusSrcColorFactor,
		770: THREE.SrcAlphaFactor,
		771: THREE.OneMinusSrcAlphaFactor,
		772: THREE.DstAlphaFactor,
		773: THREE.OneMinusDstAlphaFactor,
		774: THREE.DstColorFactor,
		775: THREE.OneMinusDstColorFactor,
		776: THREE.SrcAlphaSaturateFactor
		// The followings are not supported by Three.js yet
		//32769: CONSTANT_COLOR,
		//32770: ONE_MINUS_CONSTANT_COLOR,
		//32771: CONSTANT_ALPHA,
		//32772: ONE_MINUS_CONSTANT_COLOR
	};

	var WEBGL_TYPE_SIZES = {
		'SCALAR': 1,
		'VEC2': 2,
		'VEC3': 3,
		'VEC4': 4,
		'MAT2': 4,
		'MAT3': 9,
		'MAT4': 16
	};

	var ATTRIBUTES = {
		POSITION: 'position',
		NORMAL: 'normal',
		TEXCOORD_0: 'uv',
		TEXCOORD0: 'uv', // deprecated
		TEXCOORD: 'uv', // deprecated
		TEXCOORD_1: 'uv2',
		COLOR_0: 'color',
		COLOR0: 'color', // deprecated
		COLOR: 'color', // deprecated
		WEIGHTS_0: 'skinWeight',
		WEIGHT: 'skinWeight', // deprecated
		JOINTS_0: 'skinIndex',
		JOINT: 'skinIndex' // deprecated
	};

	var PATH_PROPERTIES = {
		scale: 'scale',
		translation: 'position',
		rotation: 'quaternion',
		weights: 'morphTargetInfluences'
	};

	var INTERPOLATION = {
		CUBICSPLINE: THREE.InterpolateSmooth, // We use custom interpolation GLTFCubicSplineInterpolation for CUBICSPLINE.
		                                      // KeyframeTrack.optimize() can't handle glTF Cubic Spline output values layout,
		                                      // using THREE.InterpolateSmooth for KeyframeTrack instantiation to prevent optimization.
		                                      // See KeyframeTrack.optimize() for the detail.
		LINEAR: THREE.InterpolateLinear,
		STEP: THREE.InterpolateDiscrete
	};

	var STATES_ENABLES = {
		2884: 'CULL_FACE',
		2929: 'DEPTH_TEST',
		3042: 'BLEND',
		3089: 'SCISSOR_TEST',
		32823: 'POLYGON_OFFSET_FILL',
		32926: 'SAMPLE_ALPHA_TO_COVERAGE'
	};

	var ALPHA_MODES = {
		OPAQUE: 'OPAQUE',
		MASK: 'MASK',
		BLEND: 'BLEND'
	};

	var MIME_TYPE_FORMATS = {
		'image/png': THREE.RGBAFormat,
		'image/jpeg': THREE.RGBFormat
	};

	/* UTILITY FUNCTIONS */

	function resolveURL( url, path ) {

		// Invalid URL
		if ( typeof url !== 'string' || url === '' ) return '';

		// Absolute URL http://,https://,//
		if ( /^(https?:)?\/\//i.test( url ) ) return url;

		// Data URI
		if ( /^data:.*,.*$/i.test( url ) ) return url;

		// Blob URL
		if ( /^blob:.*$/i.test( url ) ) return url;

		// Relative URL
		return path + url;

	}

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material
	 */
	function createDefaultMaterial() {

		return new THREE.MeshStandardMaterial( {
			color: 0xFFFFFF,
			emissive: 0x000000,
			metalness: 1,
			roughness: 1,
			transparent: false,
			depthTest: true,
			side: THREE.FrontSide
		} );

	}

	function addUnknownExtensionsToUserData( knownExtensions, object, objectDef ) {

		// Add unknown glTF extensions to an object's userData.

		for ( var name in objectDef.extensions ) {

			if ( knownExtensions[ name ] === undefined ) {

				object.userData.gltfExtensions = object.userData.gltfExtensions || {};
				object.userData.gltfExtensions[ name ] = objectDef.extensions[ name ];

			}

		}

	}

	/**
	 * @param {THREE.Object3D|THREE.Material|THREE.BufferGeometry} object
	 * @param {GLTF.definition} def
	 */
	function assignExtrasToUserData( object, gltfDef ) {

		if ( gltfDef.extras !== undefined ) {

			if ( typeof gltfDef.extras === 'object' ) {

				object.userData = gltfDef.extras;

			} else {

				console.warn( 'THREE.GLTFLoader: Ignoring primitive type .extras, ' + gltfDef.extras );

			}

		}

	}

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#morph-targets
	 *
	 * @param {THREE.BufferGeometry} geometry
	 * @param {Array<GLTF.Target>} targets
	 * @param {Array<THREE.BufferAttribute>} accessors
	 */
	function addMorphTargets( geometry, targets, accessors ) {

		var hasMorphPosition = false;
		var hasMorphNormal = false;

		for ( var i = 0, il = targets.length; i < il; i ++ ) {

			var target = targets[ i ];

			if ( target.POSITION !== undefined ) hasMorphPosition = true;
			if ( target.NORMAL !== undefined ) hasMorphNormal = true;

			if ( hasMorphPosition && hasMorphNormal ) break;

		}

		if ( ! hasMorphPosition && ! hasMorphNormal ) return;

		var morphPositions = [];
		var morphNormals = [];

		for ( var i = 0, il = targets.length; i < il; i ++ ) {

			var target = targets[ i ];
			var attributeName = 'morphTarget' + i;

			if ( hasMorphPosition ) {

				// Three.js morph position is absolute value. The formula is
				//   basePosition
				//     + weight0 * ( morphPosition0 - basePosition )
				//     + weight1 * ( morphPosition1 - basePosition )
				//     ...
				// while the glTF one is relative
				//   basePosition
				//     + weight0 * glTFmorphPosition0
				//     + weight1 * glTFmorphPosition1
				//     ...
				// then we need to convert from relative to absolute here.

				if ( target.POSITION !== undefined ) {

					// Cloning not to pollute original accessor
					var positionAttribute = cloneBufferAttribute( accessors[ target.POSITION ] );
					positionAttribute.name = attributeName;

					var position = geometry.attributes.position;

					for ( var j = 0, jl = positionAttribute.count; j < jl; j ++ ) {

						positionAttribute.setXYZ(
							j,
							positionAttribute.getX( j ) + position.getX( j ),
							positionAttribute.getY( j ) + position.getY( j ),
							positionAttribute.getZ( j ) + position.getZ( j )
						);

					}

				} else {

					positionAttribute = geometry.attributes.position;

				}

				morphPositions.push( positionAttribute );

			}

			if ( hasMorphNormal ) {

				// see target.POSITION's comment

				var normalAttribute;

				if ( target.NORMAL !== undefined ) {

					var normalAttribute = cloneBufferAttribute( accessors[ target.NORMAL ] );
					normalAttribute.name = attributeName;

					var normal = geometry.attributes.normal;

					for ( var j = 0, jl = normalAttribute.count; j < jl; j ++ ) {

						normalAttribute.setXYZ(
							j,
							normalAttribute.getX( j ) + normal.getX( j ),
							normalAttribute.getY( j ) + normal.getY( j ),
							normalAttribute.getZ( j ) + normal.getZ( j )
						);

					}

				} else {

					normalAttribute = geometry.attributes.normal;

				}

				morphNormals.push( normalAttribute );

			}

		}

		if ( hasMorphPosition ) geometry.morphAttributes.position = morphPositions;
		if ( hasMorphNormal ) geometry.morphAttributes.normal = morphNormals;

	}

	/**
	 * @param {THREE.Mesh} mesh
	 * @param {GLTF.Mesh} meshDef
	 */
	function updateMorphTargets( mesh, meshDef ) {

		mesh.updateMorphTargets();

		if ( meshDef.weights !== undefined ) {

			for ( var i = 0, il = meshDef.weights.length; i < il; i ++ ) {

				mesh.morphTargetInfluences[ i ] = meshDef.weights[ i ];

			}

		}

		// .extras has user-defined data, so check that .extras.targetNames is an array.
		if ( meshDef.extras && Array.isArray( meshDef.extras.targetNames ) ) {

			var targetNames = meshDef.extras.targetNames;

			if ( mesh.morphTargetInfluences.length === targetNames.length ) {

				mesh.morphTargetDictionary = {};

				for ( var i = 0, il = targetNames.length; i < il; i ++ ) {

					mesh.morphTargetDictionary[ targetNames[ i ] ] = i;

				}

			} else {

				console.warn( 'THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.' );

			}

		}

	}

	function isPrimitiveEqual( a, b ) {

		if ( a.indices !== b.indices ) {

			return false;

		}

		return isObjectEqual( a.attributes, b.attributes );

	}

	function isObjectEqual( a, b ) {

		if ( Object.keys( a ).length !== Object.keys( b ).length ) return false;

		for ( var key in a ) {

			if ( a[ key ] !== b[ key ] ) return false;

		}

		return true;

	}

	function isArrayEqual( a, b ) {

		if ( a.length !== b.length ) return false;

		for ( var i = 0, il = a.length; i < il; i ++ ) {

			if ( a[ i ] !== b[ i ] ) return false;

		}

		return true;

	}

	function getCachedGeometry( cache, newPrimitive ) {

		for ( var i = 0, il = cache.length; i < il; i ++ ) {

			var cached = cache[ i ];

			if ( isPrimitiveEqual( cached.primitive, newPrimitive ) ) return cached.promise;

		}

		return null;

	}

	function getCachedCombinedGeometry( cache, geometries ) {

		for ( var i = 0, il = cache.length; i < il; i ++ ) {

			var cached = cache[ i ];

			if ( isArrayEqual( geometries, cached.baseGeometries ) ) return cached.geometry;

		}

		return null;

	}

	function getCachedMultiPassGeometry( cache, geometry, primitives ) {

		for ( var i = 0, il = cache.length; i < il; i ++ ) {

			var cached = cache[ i ];

			if ( geometry === cached.baseGeometry && isArrayEqual( primitives, cached.primitives ) ) return cached.geometry;

		}

		return null;

	}

	function cloneBufferAttribute( attribute ) {

		if ( attribute.isInterleavedBufferAttribute ) {

			var count = attribute.count;
			var itemSize = attribute.itemSize;
			var array = attribute.array.slice( 0, count * itemSize );

			for ( var i = 0; i < count; ++ i ) {

				array[ i ] = attribute.getX( i );
				if ( itemSize >= 2 ) array[ i + 1 ] = attribute.getY( i );
				if ( itemSize >= 3 ) array[ i + 2 ] = attribute.getZ( i );
				if ( itemSize >= 4 ) array[ i + 3 ] = attribute.getW( i );

			}

			return new THREE.BufferAttribute( array, itemSize, attribute.normalized );

		}

		return attribute.clone();

	}

	/**
	 * Checks if we can build a single Mesh with MultiMaterial from multiple primitives.
	 * Returns true if all primitives use the same attributes/morphAttributes/mode
	 * and also have index. Otherwise returns false.
	 *
	 * @param {Array<GLTF.Primitive>} primitives
	 * @return {Boolean}
	 */
	function isMultiPassGeometry( primitives ) {

		if ( primitives.length < 2 ) return false;

		var primitive0 = primitives[ 0 ];
		var targets0 = primitive0.targets || [];

		if ( primitive0.indices === undefined ) return false;

		for ( var i = 1, il = primitives.length; i < il; i ++ ) {

			var primitive = primitives[ i ];

			if ( primitive0.mode !== primitive.mode ) return false;
			if ( primitive.indices === undefined ) return false;
			if ( ! isObjectEqual( primitive0.attributes, primitive.attributes ) ) return false;

			var targets = primitive.targets || [];

			if ( targets0.length !== targets.length ) return false;

			for ( var j = 0, jl = targets0.length; j < jl; j ++ ) {

				if ( ! isObjectEqual( targets0[ j ], targets[ j ] ) ) return false;

			}

		}

		return true;

	}

	/* GLTF PARSER */

	function GLTFParser( json, extensions, options ) {

		this.json = json || {};
		this.extensions = extensions || {};
		this.options = options || {};

		// loader object cache
		this.cache = new GLTFRegistry();

		// BufferGeometry caching
		this.primitiveCache = [];
		this.multiplePrimitivesCache = [];
		this.multiPassGeometryCache = [];

		this.textureLoader = new THREE.TextureLoader( this.options.manager );
		this.textureLoader.setCrossOrigin( this.options.crossOrigin );

		this.fileLoader = new THREE.FileLoader( this.options.manager );
		this.fileLoader.setResponseType( 'arraybuffer' );

	}

	GLTFParser.prototype.parse = function ( onLoad, onError ) {

		var json = this.json;

		// Clear the loader cache
		this.cache.removeAll();

		// Mark the special nodes/meshes in json for efficient parse
		this.markDefs();

		// Fire the callback on complete
		this.getMultiDependencies( [

			'scene',
			'animation',
			'camera'

		] ).then( function ( dependencies ) {

			var scenes = dependencies.scenes || [];
			var scene = scenes[ json.scene || 0 ];
			var animations = dependencies.animations || [];
			var cameras = dependencies.cameras || [];

			onLoad( scene, scenes, cameras, animations, json );

		} ).catch( onError );

	};

	/**
	 * Marks the special nodes/meshes in json for efficient parse.
	 */
	GLTFParser.prototype.markDefs = function () {

		var nodeDefs = this.json.nodes || [];
		var skinDefs = this.json.skins || [];
		var meshDefs = this.json.meshes || [];

		var meshReferences = {};
		var meshUses = {};

		// Nothing in the node definition indicates whether it is a Bone or an
		// Object3D. Use the skins' joint references to mark bones.
		for ( var skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex ++ ) {

			var joints = skinDefs[ skinIndex ].joints;

			for ( var i = 0, il = joints.length; i < il; i ++ ) {

				nodeDefs[ joints[ i ] ].isBone = true;

			}

		}

		// Meshes can (and should) be reused by multiple nodes in a glTF asset. To
		// avoid having more than one THREE.Mesh with the same name, count
		// references and rename instances below.
		//
		// Example: CesiumMilkTruck sample model reuses "Wheel" meshes.
		for ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {

			var nodeDef = nodeDefs[ nodeIndex ];

			if ( nodeDef.mesh !== undefined ) {

				if ( meshReferences[ nodeDef.mesh ] === undefined ) {

					meshReferences[ nodeDef.mesh ] = meshUses[ nodeDef.mesh ] = 0;

				}

				meshReferences[ nodeDef.mesh ] ++;

				// Nothing in the mesh definition indicates whether it is
				// a SkinnedMesh or Mesh. Use the node's mesh reference
				// to mark SkinnedMesh if node has skin.
				if ( nodeDef.skin !== undefined ) {

					meshDefs[ nodeDef.mesh ].isSkinnedMesh = true;

				}

			}

		}

		this.json.meshReferences = meshReferences;
		this.json.meshUses = meshUses;

	};

	/**
	 * Requests the specified dependency asynchronously, with caching.
	 * @param {string} type
	 * @param {number} index
	 * @return {Promise<Object>}
	 */
	GLTFParser.prototype.getDependency = function ( type, index ) {

		var cacheKey = type + ':' + index;
		var dependency = this.cache.get( cacheKey );

		if ( ! dependency ) {

			switch ( type ) {

				case 'scene':
					dependency = this.loadScene( index );
					break;

				case 'node':
					dependency = this.loadNode( index );
					break;

				case 'mesh':
					dependency = this.loadMesh( index );
					break;

				case 'accessor':
					dependency = this.loadAccessor( index );
					break;

				case 'bufferView':
					dependency = this.loadBufferView( index );
					break;

				case 'buffer':
					dependency = this.loadBuffer( index );
					break;

				case 'material':
					dependency = this.loadMaterial( index );
					break;

				case 'texture':
					dependency = this.loadTexture( index );
					break;

				case 'skin':
					dependency = this.loadSkin( index );
					break;

				case 'animation':
					dependency = this.loadAnimation( index );
					break;

				case 'camera':
					dependency = this.loadCamera( index );
					break;

				default:
					throw new Error( 'Unknown type: ' + type );

			}

			this.cache.add( cacheKey, dependency );

		}

		return dependency;

	};

	/**
	 * Requests all dependencies of the specified type asynchronously, with caching.
	 * @param {string} type
	 * @return {Promise<Array<Object>>}
	 */
	GLTFParser.prototype.getDependencies = function ( type ) {

		var dependencies = this.cache.get( type );

		if ( ! dependencies ) {

			var parser = this;
			var defs = this.json[ type + ( type === 'mesh' ? 'es' : 's' ) ] || [];

			dependencies = Promise.all( defs.map( function ( def, index ) {

				return parser.getDependency( type, index );

			} ) );

			this.cache.add( type, dependencies );

		}

		return dependencies;

	};

	/**
	 * Requests all multiple dependencies of the specified types asynchronously, with caching.
	 * @param {Array<string>} types
	 * @return {Promise<Object<Array<Object>>>}
	 */
	GLTFParser.prototype.getMultiDependencies = function ( types ) {

		var results = {};
		var pendings = [];

		for ( var i = 0, il = types.length; i < il; i ++ ) {

			var type = types[ i ];
			var value = this.getDependencies( type );

			value = value.then( function ( key, value ) {

				results[ key ] = value;

			}.bind( this, type + ( type === 'mesh' ? 'es' : 's' ) ) );

			pendings.push( value );

		}

		return Promise.all( pendings ).then( function () {

			return results;

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
	 * @param {number} bufferIndex
	 * @return {Promise<ArrayBuffer>}
	 */
	GLTFParser.prototype.loadBuffer = function ( bufferIndex ) {

		var bufferDef = this.json.buffers[ bufferIndex ];
		var loader = this.fileLoader;

		if ( bufferDef.type && bufferDef.type !== 'arraybuffer' ) {

			throw new Error( 'THREE.GLTFLoader: ' + bufferDef.type + ' buffer type is not supported.' );

		}

		// If present, GLB container is required to be the first buffer.
		if ( bufferDef.uri === undefined && bufferIndex === 0 ) {

			return Promise.resolve( this.extensions[ EXTENSIONS.KHR_BINARY_GLTF ].body );

		}

		var options = this.options;

		return new Promise( function ( resolve, reject ) {

			loader.load( resolveURL( bufferDef.uri, options.path ), resolve, undefined, function () {

				reject( new Error( 'THREE.GLTFLoader: Failed to load buffer "' + bufferDef.uri + '".' ) );

			} );

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
	 * @param {number} bufferViewIndex
	 * @return {Promise<ArrayBuffer>}
	 */
	GLTFParser.prototype.loadBufferView = function ( bufferViewIndex ) {

		var bufferViewDef = this.json.bufferViews[ bufferViewIndex ];

		return this.getDependency( 'buffer', bufferViewDef.buffer ).then( function ( buffer ) {

			var byteLength = bufferViewDef.byteLength || 0;
			var byteOffset = bufferViewDef.byteOffset || 0;
			return buffer.slice( byteOffset, byteOffset + byteLength );

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors
	 * @param {number} accessorIndex
	 * @return {Promise<THREE.BufferAttribute|THREE.InterleavedBufferAttribute>}
	 */
	GLTFParser.prototype.loadAccessor = function ( accessorIndex ) {

		var parser = this;
		var json = this.json;

		var accessorDef = this.json.accessors[ accessorIndex ];

		if ( accessorDef.bufferView === undefined && accessorDef.sparse === undefined ) {

			// Ignore empty accessors, which may be used to declare runtime
			// information about attributes coming from another source (e.g. Draco
			// compression extension).
			return null;

		}

		var pendingBufferViews = [];

		if ( accessorDef.bufferView !== undefined ) {

			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.bufferView ) );

		} else {

			pendingBufferViews.push( null );

		}

		if ( accessorDef.sparse !== undefined ) {

			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.indices.bufferView ) );
			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.values.bufferView ) );

		}

		return Promise.all( pendingBufferViews ).then( function ( bufferViews ) {

			var bufferView = bufferViews[ 0 ];

			var itemSize = WEBGL_TYPE_SIZES[ accessorDef.type ];
			var TypedArray = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];

			// For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.
			var elementBytes = TypedArray.BYTES_PER_ELEMENT;
			var itemBytes = elementBytes * itemSize;
			var byteOffset = accessorDef.byteOffset || 0;
			var byteStride = accessorDef.bufferView !== undefined ? json.bufferViews[ accessorDef.bufferView ].byteStride : undefined;
			var normalized = accessorDef.normalized === true;
			var array, bufferAttribute;

			// The buffer is not interleaved if the stride is the item size in bytes.
			if ( byteStride && byteStride !== itemBytes ) {

				var ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType;
				var ib = parser.cache.get( ibCacheKey );

				if ( ! ib ) {

					// Use the full buffer if it's interleaved.
					array = new TypedArray( bufferView );

					// Integer parameters to IB/IBA are in array elements, not bytes.
					ib = new THREE.InterleavedBuffer( array, byteStride / elementBytes );

					parser.cache.add( ibCacheKey, ib );

				}

				bufferAttribute = new THREE.InterleavedBufferAttribute( ib, itemSize, byteOffset / elementBytes, normalized );

			} else {

				if ( bufferView === null ) {

					array = new TypedArray( accessorDef.count * itemSize );

				} else {

					array = new TypedArray( bufferView, byteOffset, accessorDef.count * itemSize );

				}

				bufferAttribute = new THREE.BufferAttribute( array, itemSize, normalized );

			}

			// https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#sparse-accessors
			if ( accessorDef.sparse !== undefined ) {

				var itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
				var TypedArrayIndices = WEBGL_COMPONENT_TYPES[ accessorDef.sparse.indices.componentType ];

				var byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
				var byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;

				var sparseIndices = new TypedArrayIndices( bufferViews[ 1 ], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices );
				var sparseValues = new TypedArray( bufferViews[ 2 ], byteOffsetValues, accessorDef.sparse.count * itemSize );

				if ( bufferView !== null ) {

					// Avoid modifying the original ArrayBuffer, if the bufferView wasn't initialized with zeroes.
					bufferAttribute.setArray( bufferAttribute.array.slice() );

				}

				for ( var i = 0, il = sparseIndices.length; i < il; i ++ ) {

					var index = sparseIndices[ i ];

					bufferAttribute.setX( index, sparseValues[ i * itemSize ] );
					if ( itemSize >= 2 ) bufferAttribute.setY( index, sparseValues[ i * itemSize + 1 ] );
					if ( itemSize >= 3 ) bufferAttribute.setZ( index, sparseValues[ i * itemSize + 2 ] );
					if ( itemSize >= 4 ) bufferAttribute.setW( index, sparseValues[ i * itemSize + 3 ] );
					if ( itemSize >= 5 ) throw new Error( 'THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.' );

				}

			}

			return bufferAttribute;

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures
	 * @param {number} textureIndex
	 * @return {Promise<THREE.Texture>}
	 */
	GLTFParser.prototype.loadTexture = function ( textureIndex ) {

		var parser = this;
		var json = this.json;
		var options = this.options;
		var textureLoader = this.textureLoader;

		var URL = window.URL || window.webkitURL;

		var textureDef = json.textures[ textureIndex ];

		var textureExtensions = textureDef.extensions || {};

		var source;

		if ( textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] ) {

			source = json.images[ textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].source ];

		} else {

			source = json.images[ textureDef.source ];

		}

		var sourceURI = source.uri;
		var isObjectURL = false;

		if ( source.bufferView !== undefined ) {

			// Load binary image data from bufferView, if provided.

			sourceURI = parser.getDependency( 'bufferView', source.bufferView ).then( function ( bufferView ) {

				isObjectURL = true;
				var blob = new Blob( [ bufferView ], { type: source.mimeType } );
				sourceURI = URL.createObjectURL( blob );
				return sourceURI;

			} );

		}

		return Promise.resolve( sourceURI ).then( function ( sourceURI ) {

			// Load Texture resource.

			var loader = THREE.Loader.Handlers.get( sourceURI );

			if ( ! loader ) {

				loader = textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ]
					? parser.extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].ddsLoader
					: textureLoader;

			}

			return new Promise( function ( resolve, reject ) {

				loader.load( resolveURL( sourceURI, options.path ), resolve, undefined, reject );

			} );

		} ).then( function ( texture ) {

			// Clean up resources and configure Texture.

			if ( isObjectURL === true ) {

				URL.revokeObjectURL( sourceURI );

			}

			texture.flipY = false;

			if ( textureDef.name !== undefined ) texture.name = textureDef.name;

			// Ignore unknown mime types, like DDS files.
			if ( source.mimeType in MIME_TYPE_FORMATS ) {

				texture.format = MIME_TYPE_FORMATS[ source.mimeType ];

			}

			var samplers = json.samplers || {};
			var sampler = samplers[ textureDef.sampler ] || {};

			texture.magFilter = WEBGL_FILTERS[ sampler.magFilter ] || THREE.LinearFilter;
			texture.minFilter = WEBGL_FILTERS[ sampler.minFilter ] || THREE.LinearMipMapLinearFilter;
			texture.wrapS = WEBGL_WRAPPINGS[ sampler.wrapS ] || THREE.RepeatWrapping;
			texture.wrapT = WEBGL_WRAPPINGS[ sampler.wrapT ] || THREE.RepeatWrapping;

			return texture;

		} );

	};

	/**
	 * Asynchronously assigns a texture to the given material parameters.
	 * @param {Object} materialParams
	 * @param {string} textureName
	 * @param {number} textureIndex
	 * @return {Promise}
	 */
	GLTFParser.prototype.assignTexture = function ( materialParams, textureName, textureIndex ) {

		return this.getDependency( 'texture', textureIndex ).then( function ( texture ) {

			materialParams[ textureName ] = texture;

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
	 * @param {number} materialIndex
	 * @return {Promise<THREE.Material>}
	 */
	GLTFParser.prototype.loadMaterial = function ( materialIndex ) {

		var parser = this;
		var json = this.json;
		var extensions = this.extensions;
		var materialDef = json.materials[ materialIndex ];

		var materialType;
		var materialParams = {};
		var materialExtensions = materialDef.extensions || {};

		var pending = [];

		if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] ) {

			var sgExtension = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ];
			materialType = sgExtension.getMaterialType( materialDef );
			pending.push( sgExtension.extendParams( materialParams, materialDef, parser ) );

		} else if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ] ) {

			var kmuExtension = extensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ];
			materialType = kmuExtension.getMaterialType( materialDef );
			pending.push( kmuExtension.extendParams( materialParams, materialDef, parser ) );

		} else {

			// Specification:
			// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material

			materialType = THREE.MeshStandardMaterial;

			var metallicRoughness = materialDef.pbrMetallicRoughness || {};

			materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
			materialParams.opacity = 1.0;

			if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {

				var array = metallicRoughness.baseColorFactor;

				materialParams.color.fromArray( array );
				materialParams.opacity = array[ 3 ];

			}

			if ( metallicRoughness.baseColorTexture !== undefined ) {

				pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture.index ) );

			}

			materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;
			materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;

			if ( metallicRoughness.metallicRoughnessTexture !== undefined ) {

				var textureIndex = metallicRoughness.metallicRoughnessTexture.index;
				pending.push( parser.assignTexture( materialParams, 'metalnessMap', textureIndex ) );
				pending.push( parser.assignTexture( materialParams, 'roughnessMap', textureIndex ) );

			}

		}

		if ( materialDef.doubleSided === true ) {

			materialParams.side = THREE.DoubleSide;

		}

		var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;

		if ( alphaMode === ALPHA_MODES.BLEND ) {

			materialParams.transparent = true;

		} else {

			materialParams.transparent = false;

			if ( alphaMode === ALPHA_MODES.MASK ) {

				materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5;

			}

		}

		if ( materialDef.normalTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {

			pending.push( parser.assignTexture( materialParams, 'normalMap', materialDef.normalTexture.index ) );

			materialParams.normalScale = new THREE.Vector2( 1, 1 );

			if ( materialDef.normalTexture.scale !== undefined ) {

				materialParams.normalScale.set( materialDef.normalTexture.scale, materialDef.normalTexture.scale );

			}

		}

		if ( materialDef.occlusionTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {

			pending.push( parser.assignTexture( materialParams, 'aoMap', materialDef.occlusionTexture.index ) );

			if ( materialDef.occlusionTexture.strength !== undefined ) {

				materialParams.aoMapIntensity = materialDef.occlusionTexture.strength;

			}

		}

		if ( materialDef.emissiveFactor !== undefined && materialType !== THREE.MeshBasicMaterial ) {

			materialParams.emissive = new THREE.Color().fromArray( materialDef.emissiveFactor );

		}

		if ( materialDef.emissiveTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {

			pending.push( parser.assignTexture( materialParams, 'emissiveMap', materialDef.emissiveTexture.index ) );

		}

		return Promise.all( pending ).then( function () {

			var material;

			if ( materialType === THREE.ShaderMaterial ) {

				material = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams );

			} else {

				material = new materialType( materialParams );

			}

			if ( materialDef.name !== undefined ) material.name = materialDef.name;

			// Normal map textures use OpenGL conventions:
			// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#materialnormaltexture
			if ( material.normalScale ) {

				material.normalScale.y = - material.normalScale.y;

			}

			// baseColorTexture, emissiveTexture, and specularGlossinessTexture use sRGB encoding.
			if ( material.map ) material.map.encoding = THREE.sRGBEncoding;
			if ( material.emissiveMap ) material.emissiveMap.encoding = THREE.sRGBEncoding;
			if ( material.specularMap ) material.specularMap.encoding = THREE.sRGBEncoding;

			assignExtrasToUserData( material, materialDef );

			if ( materialDef.extensions ) addUnknownExtensionsToUserData( extensions, material, materialDef );

			return material;

		} );

	};

	/**
	 * @param  {THREE.BufferGeometry} geometry
	 * @param  {GLTF.Primitive} primitiveDef
	 * @param  {Array<THREE.BufferAttribute>} accessors
	 */
	function addPrimitiveAttributes( geometry, primitiveDef, accessors ) {

		var attributes = primitiveDef.attributes;

		for ( var gltfAttributeName in attributes ) {

			var threeAttributeName = ATTRIBUTES[ gltfAttributeName ];
			var bufferAttribute = accessors[ attributes[ gltfAttributeName ] ];

			// Skip attributes already provided by e.g. Draco extension.
			if ( ! threeAttributeName ) continue;
			if ( threeAttributeName in geometry.attributes ) continue;

			geometry.addAttribute( threeAttributeName, bufferAttribute );

		}

		if ( primitiveDef.indices !== undefined && ! geometry.index ) {

			geometry.setIndex( accessors[ primitiveDef.indices ] );

		}

		if ( primitiveDef.targets !== undefined ) {

			addMorphTargets( geometry, primitiveDef.targets, accessors );

		}

		assignExtrasToUserData( geometry, primitiveDef );

	}

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry
	 *
	 * Creates BufferGeometries from primitives.
	 * If we can build a single BufferGeometry with .groups from multiple primitives, returns one BufferGeometry.
	 * Otherwise, returns BufferGeometries without .groups as many as primitives.
	 *
	 * @param {Array<Object>} primitives
	 * @return {Promise<Array<THREE.BufferGeometry>>}
	 */
	GLTFParser.prototype.loadGeometries = function ( primitives ) {

		var parser = this;
		var extensions = this.extensions;
		var cache = this.primitiveCache;

		var isMultiPass = isMultiPassGeometry( primitives );
		var originalPrimitives;

		if ( isMultiPass ) {

			originalPrimitives = primitives; // save original primitives and use later

			// We build a single BufferGeometry with .groups from multiple primitives
			// because all primitives share the same attributes/morph/mode and have indices.

			primitives = [ primitives[ 0 ] ];

			// Sets .groups and combined indices to a geometry later in this method.

		}

		return this.getDependencies( 'accessor' ).then( function ( accessors ) {

			var pending = [];

			for ( var i = 0, il = primitives.length; i < il; i ++ ) {

				var primitive = primitives[ i ];

				// See if we've already created this geometry
				var cached = getCachedGeometry( cache, primitive );

				if ( cached ) {

					// Use the cached geometry if it exists
					pending.push( cached );

				} else if ( primitive.extensions && primitive.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ] ) {

					// Use DRACO geometry if available
					var geometryPromise = extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ]
						.decodePrimitive( primitive, parser )
						.then( function ( geometry ) {

							addPrimitiveAttributes( geometry, primitive, accessors );

							return geometry;

						} );

					cache.push( { primitive: primitive, promise: geometryPromise } );

					pending.push( geometryPromise );

				} else {

					// Otherwise create a new geometry
					var geometry = new THREE.BufferGeometry();

					addPrimitiveAttributes( geometry, primitive, accessors );

					var geometryPromise = Promise.resolve( geometry );

					// Cache this geometry
					cache.push( { primitive: primitive, promise: geometryPromise } );

					pending.push( geometryPromise );

				}

			}

			return Promise.all( pending ).then( function ( geometries ) {

				if ( isMultiPass ) {

					var baseGeometry = geometries[ 0 ];

					// See if we've already created this combined geometry
					var cache = parser.multiPassGeometryCache;
					var cached = getCachedMultiPassGeometry( cache, baseGeometry, originalPrimitives );

					if ( cached !== null ) return [ cached.geometry ];

					// Cloning geometry because of index override.
					// Attributes can be reused so cloning by myself here.
					var geometry = new THREE.BufferGeometry();

					geometry.name = baseGeometry.name;
					geometry.userData = baseGeometry.userData;

					for ( var key in baseGeometry.attributes ) geometry.addAttribute( key, baseGeometry.attributes[ key ] );
					for ( var key in baseGeometry.morphAttributes ) geometry.morphAttributes[ key ] = baseGeometry.morphAttributes[ key ];

					var indices = [];
					var offset = 0;

					for ( var i = 0, il = originalPrimitives.length; i < il; i ++ ) {

						var accessor = accessors[ originalPrimitives[ i ].indices ];

						for ( var j = 0, jl = accessor.count; j < jl; j ++ ) indices.push( accessor.array[ j ] );

						geometry.addGroup( offset, accessor.count, i );

						offset += accessor.count;

					}

					geometry.setIndex( indices );

					cache.push( { geometry: geometry, baseGeometry: baseGeometry, primitives: originalPrimitives } );

					return [ geometry ];

				} else if ( geometries.length > 1 && THREE.BufferGeometryUtils !== undefined ) {

					// Tries to merge geometries with BufferGeometryUtils if possible

					for ( var i = 1, il = primitives.length; i < il; i ++ ) {

						// can't merge if draw mode is different
						if ( primitives[ 0 ].mode !== primitives[ i ].mode ) return geometries;

					}

					// See if we've already created this combined geometry
					var cache = parser.multiplePrimitivesCache;
					var cached = getCachedCombinedGeometry( cache, geometries );

					if ( cached ) {

						if ( cached.geometry !== null ) return [ cached.geometry ];

					} else {

						var geometry = THREE.BufferGeometryUtils.mergeBufferGeometries( geometries, true );

						cache.push( { geometry: geometry, baseGeometries: geometries } );

						if ( geometry !== null ) return [ geometry ];

					}

				}

				return geometries;

			} );

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes
	 * @param {number} meshIndex
	 * @return {Promise<THREE.Group|THREE.Mesh|THREE.SkinnedMesh>}
	 */
	GLTFParser.prototype.loadMesh = function ( meshIndex ) {

		var scope = this;
		var json = this.json;
		var extensions = this.extensions;

		var meshDef = json.meshes[ meshIndex ];

		return this.getMultiDependencies( [

			'accessor',
			'material'

		] ).then( function ( dependencies ) {

			var primitives = meshDef.primitives;
			var originalMaterials = [];

			for ( var i = 0, il = primitives.length; i < il; i ++ ) {

				originalMaterials[ i ] = primitives[ i ].material === undefined
					? createDefaultMaterial()
					: dependencies.materials[ primitives[ i ].material ];

			}

			return scope.loadGeometries( primitives ).then( function ( geometries ) {

				var isMultiMaterial = geometries.length === 1 && geometries[ 0 ].groups.length > 0;

				var meshes = [];

				for ( var i = 0, il = geometries.length; i < il; i ++ ) {

					var geometry = geometries[ i ];
					var primitive = primitives[ i ];

					// 1. create Mesh

					var mesh;

					var material = isMultiMaterial ? originalMaterials : originalMaterials[ i ];

					if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLES ||
						primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ||
						primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ||
						primitive.mode === undefined ) {

						// .isSkinnedMesh isn't in glTF spec. See .markDefs()
						mesh = meshDef.isSkinnedMesh === true
							? new THREE.SkinnedMesh( geometry, material )
							: new THREE.Mesh( geometry, material );

						if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ) {

							mesh.drawMode = THREE.TriangleStripDrawMode;

						} else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) {

							mesh.drawMode = THREE.TriangleFanDrawMode;

						}

					} else if ( primitive.mode === WEBGL_CONSTANTS.LINES ) {

						mesh = new THREE.LineSegments( geometry, material );

					} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_STRIP ) {

						mesh = new THREE.Line( geometry, material );

					} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_LOOP ) {

						mesh = new THREE.LineLoop( geometry, material );

					} else if ( primitive.mode === WEBGL_CONSTANTS.POINTS ) {

						mesh = new THREE.Points( geometry, material );

					} else {

						throw new Error( 'THREE.GLTFLoader: Primitive mode unsupported: ' + primitive.mode );

					}

					if ( Object.keys( mesh.geometry.morphAttributes ).length > 0 ) {

						updateMorphTargets( mesh, meshDef );

					}

					mesh.name = meshDef.name || ( 'mesh_' + meshIndex );

					if ( geometries.length > 1 ) mesh.name += '_' + i;

					assignExtrasToUserData( mesh, meshDef );

					meshes.push( mesh );

					// 2. update Material depending on Mesh and BufferGeometry

					var materials = isMultiMaterial ? mesh.material : [ mesh.material ];

					var useVertexColors = geometry.attributes.color !== undefined;
					var useFlatShading = geometry.attributes.normal === undefined;
					var useSkinning = mesh.isSkinnedMesh === true;
					var useMorphTargets = Object.keys( geometry.morphAttributes ).length > 0;
					var useMorphNormals = useMorphTargets && geometry.morphAttributes.normal !== undefined;

					for ( var j = 0, jl = materials.length; j < jl; j ++ ) {

						var material = materials[ j ];

						if ( mesh.isPoints ) {

							var cacheKey = 'PointsMaterial:' + material.uuid;

							var pointsMaterial = scope.cache.get( cacheKey );

							if ( ! pointsMaterial ) {

								pointsMaterial = new THREE.PointsMaterial();
								THREE.Material.prototype.copy.call( pointsMaterial, material );
								pointsMaterial.color.copy( material.color );
								pointsMaterial.map = material.map;
								pointsMaterial.lights = false; // PointsMaterial doesn't support lights yet

								scope.cache.add( cacheKey, pointsMaterial );

							}

							material = pointsMaterial;

						} else if ( mesh.isLine ) {

							var cacheKey = 'LineBasicMaterial:' + material.uuid;

							var lineMaterial = scope.cache.get( cacheKey );

							if ( ! lineMaterial ) {

								lineMaterial = new THREE.LineBasicMaterial();
								THREE.Material.prototype.copy.call( lineMaterial, material );
								lineMaterial.color.copy( material.color );
								lineMaterial.lights = false; // LineBasicMaterial doesn't support lights yet

								scope.cache.add( cacheKey, lineMaterial );

							}

							material = lineMaterial;

						}

						// Clone the material if it will be modified
						if ( useVertexColors || useFlatShading || useSkinning || useMorphTargets ) {

							var cacheKey = 'ClonedMaterial:' + material.uuid + ':';

							if ( material.isGLTFSpecularGlossinessMaterial ) cacheKey += 'specular-glossiness:';
							if ( useSkinning ) cacheKey += 'skinning:';
							if ( useVertexColors ) cacheKey += 'vertex-colors:';
							if ( useFlatShading ) cacheKey += 'flat-shading:';
							if ( useMorphTargets ) cacheKey += 'morph-targets:';
							if ( useMorphNormals ) cacheKey += 'morph-normals:';

							var cachedMaterial = scope.cache.get( cacheKey );

							if ( ! cachedMaterial ) {

								cachedMaterial = material.isGLTFSpecularGlossinessMaterial
									? extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].cloneMaterial( material )
									: material.clone();

								if ( useSkinning ) cachedMaterial.skinning = true;
								if ( useVertexColors ) cachedMaterial.vertexColors = THREE.VertexColors;
								if ( useFlatShading ) cachedMaterial.flatShading = true;
								if ( useMorphTargets ) cachedMaterial.morphTargets = true;
								if ( useMorphNormals ) cachedMaterial.morphNormals = true;

								scope.cache.add( cacheKey, cachedMaterial );

							}

							material = cachedMaterial;

						}

						materials[ j ] = material;

						// workarounds for mesh and geometry

						if ( material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined ) {

							console.log( 'THREE.GLTFLoader: Duplicating UVs to support aoMap.' );
							geometry.addAttribute( 'uv2', new THREE.BufferAttribute( geometry.attributes.uv.array, 2 ) );

						}

						if ( material.isGLTFSpecularGlossinessMaterial ) {

							// for GLTFSpecularGlossinessMaterial(ShaderMaterial) uniforms runtime update
							mesh.onBeforeRender = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].refreshUniforms;

						}

					}

					mesh.material = isMultiMaterial ? materials : materials[ 0 ];

				}

				if ( meshes.length === 1 ) {

					return meshes[ 0 ];

				}

				var group = new THREE.Group();

				for ( var i = 0, il = meshes.length; i < il; i ++ ) {

					group.add( meshes[ i ] );

				}

				return group;

			} );

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras
	 * @param {number} cameraIndex
	 * @return {Promise<THREE.Camera>}
	 */
	GLTFParser.prototype.loadCamera = function ( cameraIndex ) {

		var camera;
		var cameraDef = this.json.cameras[ cameraIndex ];
		var params = cameraDef[ cameraDef.type ];

		if ( ! params ) {

			console.warn( 'THREE.GLTFLoader: Missing camera parameters.' );
			return;

		}

		if ( cameraDef.type === 'perspective' ) {

			camera = new THREE.PerspectiveCamera( THREE.Math.radToDeg( params.yfov ), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6 );

		} else if ( cameraDef.type === 'orthographic' ) {

			camera = new THREE.OrthographicCamera( params.xmag / - 2, params.xmag / 2, params.ymag / 2, params.ymag / - 2, params.znear, params.zfar );

		}

		if ( cameraDef.name !== undefined ) camera.name = cameraDef.name;

		assignExtrasToUserData( camera, cameraDef );

		return Promise.resolve( camera );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins
	 * @param {number} skinIndex
	 * @return {Promise<Object>}
	 */
	GLTFParser.prototype.loadSkin = function ( skinIndex ) {

		var skinDef = this.json.skins[ skinIndex ];

		var skinEntry = { joints: skinDef.joints };

		if ( skinDef.inverseBindMatrices === undefined ) {

			return Promise.resolve( skinEntry );

		}

		return this.getDependency( 'accessor', skinDef.inverseBindMatrices ).then( function ( accessor ) {

			skinEntry.inverseBindMatrices = accessor;

			return skinEntry;

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations
	 * @param {number} animationIndex
	 * @return {Promise<THREE.AnimationClip>}
	 */
	GLTFParser.prototype.loadAnimation = function ( animationIndex ) {

		var json = this.json;

		var animationDef = json.animations[ animationIndex ];

		return this.getMultiDependencies( [

			'accessor',
			'node'

		] ).then( function ( dependencies ) {

			var tracks = [];

			for ( var i = 0, il = animationDef.channels.length; i < il; i ++ ) {

				var channel = animationDef.channels[ i ];
				var sampler = animationDef.samplers[ channel.sampler ];

				if ( sampler ) {

					var target = channel.target;
					var name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.
					var input = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.input ] : sampler.input;
					var output = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.output ] : sampler.output;

					var inputAccessor = dependencies.accessors[ input ];
					var outputAccessor = dependencies.accessors[ output ];

					var node = dependencies.nodes[ name ];

					if ( node ) {

						node.updateMatrix();
						node.matrixAutoUpdate = true;

						var TypedKeyframeTrack;

						switch ( PATH_PROPERTIES[ target.path ] ) {

							case PATH_PROPERTIES.weights:

								TypedKeyframeTrack = THREE.NumberKeyframeTrack;
								break;

							case PATH_PROPERTIES.rotation:

								TypedKeyframeTrack = THREE.QuaternionKeyframeTrack;
								break;

							case PATH_PROPERTIES.position:
							case PATH_PROPERTIES.scale:
							default:

								TypedKeyframeTrack = THREE.VectorKeyframeTrack;
								break;

						}

						var targetName = node.name ? node.name : node.uuid;

						var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : THREE.InterpolateLinear;

						var targetNames = [];

						if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) {

							// node can be THREE.Group here but
							// PATH_PROPERTIES.weights(morphTargetInfluences) should be
							// the property of a mesh object under group.

							node.traverse( function ( object ) {

								if ( object.isMesh === true && object.morphTargetInfluences ) {

									targetNames.push( object.name ? object.name : object.uuid );

								}

							} );

						} else {

							targetNames.push( targetName );

						}

						// KeyframeTrack.optimize() will modify given 'times' and 'values'
						// buffers before creating a truncated copy to keep. Because buffers may
						// be reused by other tracks, make copies here.
						for ( var j = 0, jl = targetNames.length; j < jl; j ++ ) {

							var track = new TypedKeyframeTrack(
								targetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ],
								THREE.AnimationUtils.arraySlice( inputAccessor.array, 0 ),
								THREE.AnimationUtils.arraySlice( outputAccessor.array, 0 ),
								interpolation
							);

							// Here is the trick to enable custom interpolation.
							// Overrides .createInterpolant in a factory method which creates custom interpolation.
							if ( sampler.interpolation === 'CUBICSPLINE' ) {

								track.createInterpolant = function InterpolantFactoryMethodGLTFCubicSpline( result ) {

									// A CUBICSPLINE keyframe in glTF has three output values for each input value,
									// representing inTangent, splineVertex, and outTangent. As a result, track.getValueSize()
									// must be divided by three to get the interpolant's sampleSize argument.

									return new GLTFCubicSplineInterpolant( this.times, this.values, this.getValueSize() / 3, result );

								};

								// Workaround, provide an alternate way to know if the interpolant type is cubis spline to track.
								// track.getInterpolation() doesn't return valid value for custom interpolant.
								track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true;

							}

							tracks.push( track );

						}

					}

				}

			}

			var name = animationDef.name !== undefined ? animationDef.name : 'animation_' + animationIndex;

			return new THREE.AnimationClip( name, undefined, tracks );

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
	 * @param {number} nodeIndex
	 * @return {Promise<THREE.Object3D>}
	 */
	GLTFParser.prototype.loadNode = function ( nodeIndex ) {

		var json = this.json;
		var extensions = this.extensions;

		var meshReferences = json.meshReferences;
		var meshUses = json.meshUses;

		var nodeDef = json.nodes[ nodeIndex ];

		return this.getMultiDependencies( [

			'mesh',
			'skin',
			'camera',
			'light'

		] ).then( function ( dependencies ) {

			var node;

			// .isBone isn't in glTF spec. See .markDefs
			if ( nodeDef.isBone === true ) {

				node = new THREE.Bone();

			} else if ( nodeDef.mesh !== undefined ) {

				var mesh = dependencies.meshes[ nodeDef.mesh ];

				if ( meshReferences[ nodeDef.mesh ] > 1 ) {

					var instanceNum = meshUses[ nodeDef.mesh ] ++;

					node = mesh.clone();
					node.name += '_instance_' + instanceNum;

					// onBeforeRender copy for Specular-Glossiness
					node.onBeforeRender = mesh.onBeforeRender;

					for ( var i = 0, il = node.children.length; i < il; i ++ ) {

						node.children[ i ].name += '_instance_' + instanceNum;
						node.children[ i ].onBeforeRender = mesh.children[ i ].onBeforeRender;

					}

				} else {

					node = mesh;

				}

			} else if ( nodeDef.camera !== undefined ) {

				node = dependencies.cameras[ nodeDef.camera ];

			} else if ( nodeDef.extensions
					 && nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ]
					 && nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light !== undefined ) {

				var lights = extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].lights;
				node = lights[ nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light ];

			} else {

				node = new THREE.Object3D();

			}

			if ( nodeDef.name !== undefined ) {

				node.name = THREE.PropertyBinding.sanitizeNodeName( nodeDef.name );

			}

			assignExtrasToUserData( node, nodeDef );

			if ( nodeDef.extensions ) addUnknownExtensionsToUserData( extensions, node, nodeDef );

			if ( nodeDef.matrix !== undefined ) {

				var matrix = new THREE.Matrix4();
				matrix.fromArray( nodeDef.matrix );
				node.applyMatrix( matrix );

			} else {

				if ( nodeDef.translation !== undefined ) {

					node.position.fromArray( nodeDef.translation );

				}

				if ( nodeDef.rotation !== undefined ) {

					node.quaternion.fromArray( nodeDef.rotation );

				}

				if ( nodeDef.scale !== undefined ) {

					node.scale.fromArray( nodeDef.scale );

				}

			}

			return node;

		} );

	};

	/**
	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
	 * @param {number} sceneIndex
	 * @return {Promise<THREE.Scene>}
	 */
	GLTFParser.prototype.loadScene = function () {

		// scene node hierachy builder

		function buildNodeHierachy( nodeId, parentObject, json, allNodes, skins ) {

			var node = allNodes[ nodeId ];
			var nodeDef = json.nodes[ nodeId ];

			// build skeleton here as well

			if ( nodeDef.skin !== undefined ) {

				var meshes = node.isGroup === true ? node.children : [ node ];

				for ( var i = 0, il = meshes.length; i < il; i ++ ) {

					var mesh = meshes[ i ];
					var skinEntry = skins[ nodeDef.skin ];

					var bones = [];
					var boneInverses = [];

					for ( var j = 0, jl = skinEntry.joints.length; j < jl; j ++ ) {

						var jointId = skinEntry.joints[ j ];
						var jointNode = allNodes[ jointId ];

						if ( jointNode ) {

							bones.push( jointNode );

							var mat = new THREE.Matrix4();

							if ( skinEntry.inverseBindMatrices !== undefined ) {

								mat.fromArray( skinEntry.inverseBindMatrices.array, j * 16 );

							}

							boneInverses.push( mat );

						} else {

							console.warn( 'THREE.GLTFLoader: Joint "%s" could not be found.', jointId );

						}

					}

					mesh.bind( new THREE.Skeleton( bones, boneInverses ), mesh.matrixWorld );

				}

			}

			// build node hierachy

			parentObject.add( node );

			if ( nodeDef.children ) {

				var children = nodeDef.children;

				for ( var i = 0, il = children.length; i < il; i ++ ) {

					var child = children[ i ];
					buildNodeHierachy( child, node, json, allNodes, skins );

				}

			}

		}

		return function loadScene( sceneIndex ) {

			var json = this.json;
			var extensions = this.extensions;
			var sceneDef = this.json.scenes[ sceneIndex ];

			return this.getMultiDependencies( [

				'node',
				'skin'

			] ).then( function ( dependencies ) {

				var scene = new THREE.Scene();
				if ( sceneDef.name !== undefined ) scene.name = sceneDef.name;

				assignExtrasToUserData( scene, sceneDef );

				if ( sceneDef.extensions ) addUnknownExtensionsToUserData( extensions, scene, sceneDef );

				var nodeIds = sceneDef.nodes || [];

				for ( var i = 0, il = nodeIds.length; i < il; i ++ ) {

					buildNodeHierachy( nodeIds[ i ], scene, json, dependencies.nodes, dependencies.skins );

				}

				return scene;

			} );

		};

	}();

	return GLTFLoader;

} )();
;/**
 * @author mrdoob / http://mrdoob.com/
 * @author supereggbert / http://www.paulbrunt.co.uk/
 * @author julianwa / https://github.com/julianwa
 */

THREE.RenderableObject = function () {

	this.id = 0;

	this.object = null;
	this.z = 0;
	this.renderOrder = 0;

};

//

THREE.RenderableFace = function () {

	this.id = 0;

	this.v1 = new THREE.RenderableVertex();
	this.v2 = new THREE.RenderableVertex();
	this.v3 = new THREE.RenderableVertex();

	this.normalModel = new THREE.Vector3();

	this.vertexNormalsModel = [ new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3() ];
	this.vertexNormalsLength = 0;

	this.color = new THREE.Color();
	this.material = null;
	this.uvs = [ new THREE.Vector2(), new THREE.Vector2(), new THREE.Vector2() ];

	this.z = 0;
	this.renderOrder = 0;

};

//

THREE.RenderableVertex = function () {

	this.position = new THREE.Vector3();
	this.positionWorld = new THREE.Vector3();
	this.positionScreen = new THREE.Vector4();

	this.visible = true;

};

THREE.RenderableVertex.prototype.copy = function ( vertex ) {

	this.positionWorld.copy( vertex.positionWorld );
	this.positionScreen.copy( vertex.positionScreen );

};

//

THREE.RenderableLine = function () {

	this.id = 0;

	this.v1 = new THREE.RenderableVertex();
	this.v2 = new THREE.RenderableVertex();

	this.vertexColors = [ new THREE.Color(), new THREE.Color() ];
	this.material = null;

	this.z = 0;
	this.renderOrder = 0;

};

//

THREE.RenderableSprite = function () {

	this.id = 0;

	this.object = null;

	this.x = 0;
	this.y = 0;
	this.z = 0;

	this.rotation = 0;
	this.scale = new THREE.Vector2();

	this.material = null;
	this.renderOrder = 0;

};

//

THREE.Projector = function () {

	var _object, _objectCount, _objectPool = [], _objectPoolLength = 0,
		_vertex, _vertexCount, _vertexPool = [], _vertexPoolLength = 0,
		_face, _faceCount, _facePool = [], _facePoolLength = 0,
		_line, _lineCount, _linePool = [], _linePoolLength = 0,
		_sprite, _spriteCount, _spritePool = [], _spritePoolLength = 0,

		_renderData = { objects: [], lights: [], elements: [] },

		_vector3 = new THREE.Vector3(),
		_vector4 = new THREE.Vector4(),

		_clipBox = new THREE.Box3( new THREE.Vector3( - 1, - 1, - 1 ), new THREE.Vector3( 1, 1, 1 ) ),
		_boundingBox = new THREE.Box3(),
		_points3 = new Array( 3 ),

		_viewMatrix = new THREE.Matrix4(),
		_viewProjectionMatrix = new THREE.Matrix4(),

		_modelMatrix,
		_modelViewProjectionMatrix = new THREE.Matrix4(),

		_normalMatrix = new THREE.Matrix3(),

		_frustum = new THREE.Frustum(),

		_clippedVertex1PositionScreen = new THREE.Vector4(),
		_clippedVertex2PositionScreen = new THREE.Vector4();

	//

	this.projectVector = function ( vector, camera ) {

		console.warn( 'THREE.Projector: .projectVector() is now vector.project().' );
		vector.project( camera );

	};

	this.unprojectVector = function ( vector, camera ) {

		console.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );
		vector.unproject( camera );

	};

	this.pickingRay = function () {

		console.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );

	};

	//

	var RenderList = function () {

		var normals = [];
		var colors = [];
		var uvs = [];

		var object = null;
		var material = null;

		var normalMatrix = new THREE.Matrix3();

		function setObject( value ) {

			object = value;
			material = object.material;

			normalMatrix.getNormalMatrix( object.matrixWorld );

			normals.length = 0;
			colors.length = 0;
			uvs.length = 0;

		}

		function projectVertex( vertex ) {

			var position = vertex.position;
			var positionWorld = vertex.positionWorld;
			var positionScreen = vertex.positionScreen;

			positionWorld.copy( position ).applyMatrix4( _modelMatrix );
			positionScreen.copy( positionWorld ).applyMatrix4( _viewProjectionMatrix );

			var invW = 1 / positionScreen.w;

			positionScreen.x *= invW;
			positionScreen.y *= invW;
			positionScreen.z *= invW;

			vertex.visible = positionScreen.x >= - 1 && positionScreen.x <= 1 &&
					 positionScreen.y >= - 1 && positionScreen.y <= 1 &&
					 positionScreen.z >= - 1 && positionScreen.z <= 1;

		}

		function pushVertex( x, y, z ) {

			_vertex = getNextVertexInPool();
			_vertex.position.set( x, y, z );

			projectVertex( _vertex );

		}

		function pushNormal( x, y, z ) {

			normals.push( x, y, z );

		}

		function pushColor( r, g, b ) {

			colors.push( r, g, b );

		}

		function pushUv( x, y ) {

			uvs.push( x, y );

		}

		function checkTriangleVisibility( v1, v2, v3 ) {

			if ( v1.visible === true || v2.visible === true || v3.visible === true ) return true;

			_points3[ 0 ] = v1.positionScreen;
			_points3[ 1 ] = v2.positionScreen;
			_points3[ 2 ] = v3.positionScreen;

			return _clipBox.intersectsBox( _boundingBox.setFromPoints( _points3 ) );

		}

		function checkBackfaceCulling( v1, v2, v3 ) {

			return ( ( v3.positionScreen.x - v1.positionScreen.x ) *
				    ( v2.positionScreen.y - v1.positionScreen.y ) -
				    ( v3.positionScreen.y - v1.positionScreen.y ) *
				    ( v2.positionScreen.x - v1.positionScreen.x ) ) < 0;

		}

		function pushLine( a, b ) {

			var v1 = _vertexPool[ a ];
			var v2 = _vertexPool[ b ];

			// Clip

			v1.positionScreen.copy( v1.position ).applyMatrix4( _modelViewProjectionMatrix );
			v2.positionScreen.copy( v2.position ).applyMatrix4( _modelViewProjectionMatrix );

			if ( clipLine( v1.positionScreen, v2.positionScreen ) === true ) {

				// Perform the perspective divide
				v1.positionScreen.multiplyScalar( 1 / v1.positionScreen.w );
				v2.positionScreen.multiplyScalar( 1 / v2.positionScreen.w );

				_line = getNextLineInPool();
				_line.id = object.id;
				_line.v1.copy( v1 );
				_line.v2.copy( v2 );
				_line.z = Math.max( v1.positionScreen.z, v2.positionScreen.z );
				_line.renderOrder = object.renderOrder;

				_line.material = object.material;

				if ( object.material.vertexColors === THREE.VertexColors ) {

					_line.vertexColors[ 0 ].fromArray( colors, a * 3 );
					_line.vertexColors[ 1 ].fromArray( colors, b * 3 );

				}

				_renderData.elements.push( _line );

			}

		}

		function pushTriangle( a, b, c, material ) {

			var v1 = _vertexPool[ a ];
			var v2 = _vertexPool[ b ];
			var v3 = _vertexPool[ c ];

			if ( checkTriangleVisibility( v1, v2, v3 ) === false ) return;

			if ( material.side === THREE.DoubleSide || checkBackfaceCulling( v1, v2, v3 ) === true ) {

				_face = getNextFaceInPool();

				_face.id = object.id;
				_face.v1.copy( v1 );
				_face.v2.copy( v2 );
				_face.v3.copy( v3 );
				_face.z = ( v1.positionScreen.z + v2.positionScreen.z + v3.positionScreen.z ) / 3;
				_face.renderOrder = object.renderOrder;

				// face normal
				_vector3.subVectors( v3.position, v2.position );
				_vector4.subVectors( v1.position, v2.position );
				_vector3.cross( _vector4 );
				_face.normalModel.copy( _vector3 );
				_face.normalModel.applyMatrix3( normalMatrix ).normalize();

				for ( var i = 0; i < 3; i ++ ) {

					var normal = _face.vertexNormalsModel[ i ];
					normal.fromArray( normals, arguments[ i ] * 3 );
					normal.applyMatrix3( normalMatrix ).normalize();

					var uv = _face.uvs[ i ];
					uv.fromArray( uvs, arguments[ i ] * 2 );

				}

				_face.vertexNormalsLength = 3;

				_face.material = material;

				if ( material.vertexColors === THREE.FaceColors ) {

					_face.color.fromArray( colors, a * 3 );

				}

				_renderData.elements.push( _face );

			}

		}

		return {
			setObject: setObject,
			projectVertex: projectVertex,
			checkTriangleVisibility: checkTriangleVisibility,
			checkBackfaceCulling: checkBackfaceCulling,
			pushVertex: pushVertex,
			pushNormal: pushNormal,
			pushColor: pushColor,
			pushUv: pushUv,
			pushLine: pushLine,
			pushTriangle: pushTriangle
		};

	};

	var renderList = new RenderList();

	function projectObject( object ) {

		if ( object.visible === false ) return;

		if ( object instanceof THREE.Light ) {

			_renderData.lights.push( object );

		} else if ( object instanceof THREE.Mesh || object instanceof THREE.Line || object instanceof THREE.Points ) {

			if ( object.material.visible === false ) return;
			if ( object.frustumCulled === true && _frustum.intersectsObject( object ) === false ) return;

			addObject( object );

		} else if ( object instanceof THREE.Sprite ) {

			if ( object.material.visible === false ) return;
			if ( object.frustumCulled === true && _frustum.intersectsSprite( object ) === false ) return;

			addObject( object );

		}

		var children = object.children;

		for ( var i = 0, l = children.length; i < l; i ++ ) {

			projectObject( children[ i ] );

		}

	}

	function addObject( object ) {

		_object = getNextObjectInPool();
		_object.id = object.id;
		_object.object = object;

		_vector3.setFromMatrixPosition( object.matrixWorld );
		_vector3.applyMatrix4( _viewProjectionMatrix );
		_object.z = _vector3.z;
		_object.renderOrder = object.renderOrder;

		_renderData.objects.push( _object );

	}

	this.projectScene = function ( scene, camera, sortObjects, sortElements ) {

		_faceCount = 0;
		_lineCount = 0;
		_spriteCount = 0;

		_renderData.elements.length = 0;

		if ( scene.autoUpdate === true ) scene.updateMatrixWorld();
		if ( camera.parent === null ) camera.updateMatrixWorld();

		_viewMatrix.copy( camera.matrixWorldInverse );
		_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );

		_frustum.setFromMatrix( _viewProjectionMatrix );

		//

		_objectCount = 0;

		_renderData.objects.length = 0;
		_renderData.lights.length = 0;

		projectObject( scene );

		if ( sortObjects === true ) {

			_renderData.objects.sort( painterSort );

		}

		//

		var objects = _renderData.objects;

		for ( var o = 0, ol = objects.length; o < ol; o ++ ) {

			var object = objects[ o ].object;
			var geometry = object.geometry;

			renderList.setObject( object );

			_modelMatrix = object.matrixWorld;

			_vertexCount = 0;

			if ( object instanceof THREE.Mesh ) {

				if ( geometry instanceof THREE.BufferGeometry ) {

					var material = object.material;

					var isMultiMaterial = Array.isArray( material );

					var attributes = geometry.attributes;
					var groups = geometry.groups;

					if ( attributes.position === undefined ) continue;

					var positions = attributes.position.array;

					for ( var i = 0, l = positions.length; i < l; i += 3 ) {

						var x = positions[ i ];
						var y = positions[ i + 1 ];
						var z = positions[ i + 2 ];

						if ( material.morphTargets === true ) {

							var morphTargets = geometry.morphAttributes.position;
							var morphInfluences = object.morphTargetInfluences;

							for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {

								var influence = morphInfluences[ t ];

								if ( influence === 0 ) continue;

								var target = morphTargets[ t ];

								x += ( target.getX( i / 3 ) - positions[ i ] ) * influence;
								y += ( target.getY( i / 3 ) - positions[ i + 1 ] ) * influence;
								z += ( target.getZ( i / 3 ) - positions[ i + 2 ] ) * influence;

							}

						}

						renderList.pushVertex( x, y, z );

					}

					if ( attributes.normal !== undefined ) {

						var normals = attributes.normal.array;

						for ( var i = 0, l = normals.length; i < l; i += 3 ) {

							renderList.pushNormal( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] );

						}

					}

					if ( attributes.color !== undefined ) {

						var colors = attributes.color.array;

						for ( var i = 0, l = colors.length; i < l; i += 3 ) {

							renderList.pushColor( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] );

						}

					}

					if ( attributes.uv !== undefined ) {

						var uvs = attributes.uv.array;

						for ( var i = 0, l = uvs.length; i < l; i += 2 ) {

							renderList.pushUv( uvs[ i ], uvs[ i + 1 ] );

						}

					}

					if ( geometry.index !== null ) {

						var indices = geometry.index.array;

						if ( groups.length > 0 ) {

							for ( var g = 0; g < groups.length; g ++ ) {

								var group = groups[ g ];

								material = isMultiMaterial === true
									 ? object.material[ group.materialIndex ]
									 : object.material;

								if ( material === undefined ) continue;

								for ( var i = group.start, l = group.start + group.count; i < l; i += 3 ) {

									renderList.pushTriangle( indices[ i ], indices[ i + 1 ], indices[ i + 2 ], material );

								}

							}

						} else {

							for ( var i = 0, l = indices.length; i < l; i += 3 ) {

								renderList.pushTriangle( indices[ i ], indices[ i + 1 ], indices[ i + 2 ], material );

							}

						}

					} else {

						if ( groups.length > 0 ) {

							for ( var g = 0; g < groups.length; g ++ ) {

								var group = groups[ g ];

								material = isMultiMaterial === true
									 ? object.material[ group.materialIndex ]
									 : object.material;

								if ( material === undefined ) continue;

								for ( var i = group.start, l = group.start + group.count; i < l; i += 3 ) {

									renderList.pushTriangle( i, i + 1, i + 2, material );

								}

							}

						} else {

							for ( var i = 0, l = positions.length / 3; i < l; i += 3 ) {

								renderList.pushTriangle( i, i + 1, i + 2, material );

							}

						}

					}

				} else if ( geometry instanceof THREE.Geometry ) {

					var vertices = geometry.vertices;
					var faces = geometry.faces;
					var faceVertexUvs = geometry.faceVertexUvs[ 0 ];

					_normalMatrix.getNormalMatrix( _modelMatrix );

					var material = object.material;

					var isMultiMaterial = Array.isArray( material );

					for ( var v = 0, vl = vertices.length; v < vl; v ++ ) {

						var vertex = vertices[ v ];

						_vector3.copy( vertex );

						if ( material.morphTargets === true ) {

							var morphTargets = geometry.morphTargets;
							var morphInfluences = object.morphTargetInfluences;

							for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {

								var influence = morphInfluences[ t ];

								if ( influence === 0 ) continue;

								var target = morphTargets[ t ];
								var targetVertex = target.vertices[ v ];

								_vector3.x += ( targetVertex.x - vertex.x ) * influence;
								_vector3.y += ( targetVertex.y - vertex.y ) * influence;
								_vector3.z += ( targetVertex.z - vertex.z ) * influence;

							}

						}

						renderList.pushVertex( _vector3.x, _vector3.y, _vector3.z );

					}

					for ( var f = 0, fl = faces.length; f < fl; f ++ ) {

						var face = faces[ f ];

						material = isMultiMaterial === true
							 ? object.material[ face.materialIndex ]
							 : object.material;

						if ( material === undefined ) continue;

						var side = material.side;

						var v1 = _vertexPool[ face.a ];
						var v2 = _vertexPool[ face.b ];
						var v3 = _vertexPool[ face.c ];

						if ( renderList.checkTriangleVisibility( v1, v2, v3 ) === false ) continue;

						var visible = renderList.checkBackfaceCulling( v1, v2, v3 );

						if ( side !== THREE.DoubleSide ) {

							if ( side === THREE.FrontSide && visible === false ) continue;
							if ( side === THREE.BackSide && visible === true ) continue;

						}

						_face = getNextFaceInPool();

						_face.id = object.id;
						_face.v1.copy( v1 );
						_face.v2.copy( v2 );
						_face.v3.copy( v3 );

						_face.normalModel.copy( face.normal );

						if ( visible === false && ( side === THREE.BackSide || side === THREE.DoubleSide ) ) {

							_face.normalModel.negate();

						}

						_face.normalModel.applyMatrix3( _normalMatrix ).normalize();

						var faceVertexNormals = face.vertexNormals;

						for ( var n = 0, nl = Math.min( faceVertexNormals.length, 3 ); n < nl; n ++ ) {

							var normalModel = _face.vertexNormalsModel[ n ];
							normalModel.copy( faceVertexNormals[ n ] );

							if ( visible === false && ( side === THREE.BackSide || side === THREE.DoubleSide ) ) {

								normalModel.negate();

							}

							normalModel.applyMatrix3( _normalMatrix ).normalize();

						}

						_face.vertexNormalsLength = faceVertexNormals.length;

						var vertexUvs = faceVertexUvs[ f ];

						if ( vertexUvs !== undefined ) {

							for ( var u = 0; u < 3; u ++ ) {

								_face.uvs[ u ].copy( vertexUvs[ u ] );

							}

						}

						_face.color = face.color;
						_face.material = material;

						_face.z = ( v1.positionScreen.z + v2.positionScreen.z + v3.positionScreen.z ) / 3;
						_face.renderOrder = object.renderOrder;

						_renderData.elements.push( _face );

					}

				}

			} else if ( object instanceof THREE.Line ) {

				_modelViewProjectionMatrix.multiplyMatrices( _viewProjectionMatrix, _modelMatrix );

				if ( geometry instanceof THREE.BufferGeometry ) {

					var attributes = geometry.attributes;

					if ( attributes.position !== undefined ) {

						var positions = attributes.position.array;

						for ( var i = 0, l = positions.length; i < l; i += 3 ) {

							renderList.pushVertex( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] );

						}

						if ( attributes.color !== undefined ) {

							var colors = attributes.color.array;

							for ( var i = 0, l = colors.length; i < l; i += 3 ) {

								renderList.pushColor( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] );

							}

						}

						if ( geometry.index !== null ) {

							var indices = geometry.index.array;

							for ( var i = 0, l = indices.length; i < l; i += 2 ) {

								renderList.pushLine( indices[ i ], indices[ i + 1 ] );

							}

						} else {

							var step = object instanceof THREE.LineSegments ? 2 : 1;

							for ( var i = 0, l = ( positions.length / 3 ) - 1; i < l; i += step ) {

								renderList.pushLine( i, i + 1 );

							}

						}

					}

				} else if ( geometry instanceof THREE.Geometry ) {

					var vertices = object.geometry.vertices;

					if ( vertices.length === 0 ) continue;

					v1 = getNextVertexInPool();
					v1.positionScreen.copy( vertices[ 0 ] ).applyMatrix4( _modelViewProjectionMatrix );

					var step = object instanceof THREE.LineSegments ? 2 : 1;

					for ( var v = 1, vl = vertices.length; v < vl; v ++ ) {

						v1 = getNextVertexInPool();
						v1.positionScreen.copy( vertices[ v ] ).applyMatrix4( _modelViewProjectionMatrix );

						if ( ( v + 1 ) % step > 0 ) continue;

						v2 = _vertexPool[ _vertexCount - 2 ];

						_clippedVertex1PositionScreen.copy( v1.positionScreen );
						_clippedVertex2PositionScreen.copy( v2.positionScreen );

						if ( clipLine( _clippedVertex1PositionScreen, _clippedVertex2PositionScreen ) === true ) {

							// Perform the perspective divide
							_clippedVertex1PositionScreen.multiplyScalar( 1 / _clippedVertex1PositionScreen.w );
							_clippedVertex2PositionScreen.multiplyScalar( 1 / _clippedVertex2PositionScreen.w );

							_line = getNextLineInPool();

							_line.id = object.id;
							_line.v1.positionScreen.copy( _clippedVertex1PositionScreen );
							_line.v2.positionScreen.copy( _clippedVertex2PositionScreen );

							_line.z = Math.max( _clippedVertex1PositionScreen.z, _clippedVertex2PositionScreen.z );
							_line.renderOrder = object.renderOrder;

							_line.material = object.material;

							if ( object.material.vertexColors === THREE.VertexColors ) {

								_line.vertexColors[ 0 ].copy( object.geometry.colors[ v ] );
								_line.vertexColors[ 1 ].copy( object.geometry.colors[ v - 1 ] );

							}

							_renderData.elements.push( _line );

						}

					}

				}

			} else if ( object instanceof THREE.Points ) {

				_modelViewProjectionMatrix.multiplyMatrices( _viewProjectionMatrix, _modelMatrix );

				if ( geometry instanceof THREE.Geometry ) {

					var vertices = object.geometry.vertices;

					for ( var v = 0, vl = vertices.length; v < vl; v ++ ) {

						var vertex = vertices[ v ];

						_vector4.set( vertex.x, vertex.y, vertex.z, 1 );
						_vector4.applyMatrix4( _modelViewProjectionMatrix );

						pushPoint( _vector4, object, camera );

					}

				} else if ( geometry instanceof THREE.BufferGeometry ) {

					var attributes = geometry.attributes;

					if ( attributes.position !== undefined ) {

						var positions = attributes.position.array;

						for ( var i = 0, l = positions.length; i < l; i += 3 ) {

							_vector4.set( positions[ i ], positions[ i + 1 ], positions[ i + 2 ], 1 );
							_vector4.applyMatrix4( _modelViewProjectionMatrix );

							pushPoint( _vector4, object, camera );

						}

					}

				}

			} else if ( object instanceof THREE.Sprite ) {

				object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
				_vector4.set( _modelMatrix.elements[ 12 ], _modelMatrix.elements[ 13 ], _modelMatrix.elements[ 14 ], 1 );
				_vector4.applyMatrix4( _viewProjectionMatrix );

				pushPoint( _vector4, object, camera );

			}

		}

		if ( sortElements === true ) {

			_renderData.elements.sort( painterSort );

		}

		return _renderData;

	};

	function pushPoint( _vector4, object, camera ) {

		var invW = 1 / _vector4.w;

		_vector4.z *= invW;

		if ( _vector4.z >= - 1 && _vector4.z <= 1 ) {

			_sprite = getNextSpriteInPool();
			_sprite.id = object.id;
			_sprite.x = _vector4.x * invW;
			_sprite.y = _vector4.y * invW;
			_sprite.z = _vector4.z;
			_sprite.renderOrder = object.renderOrder;
			_sprite.object = object;

			_sprite.rotation = object.rotation;

			_sprite.scale.x = object.scale.x * Math.abs( _sprite.x - ( _vector4.x + camera.projectionMatrix.elements[ 0 ] ) / ( _vector4.w + camera.projectionMatrix.elements[ 12 ] ) );
			_sprite.scale.y = object.scale.y * Math.abs( _sprite.y - ( _vector4.y + camera.projectionMatrix.elements[ 5 ] ) / ( _vector4.w + camera.projectionMatrix.elements[ 13 ] ) );

			_sprite.material = object.material;

			_renderData.elements.push( _sprite );

		}

	}

	// Pools

	function getNextObjectInPool() {

		if ( _objectCount === _objectPoolLength ) {

			var object = new THREE.RenderableObject();
			_objectPool.push( object );
			_objectPoolLength ++;
			_objectCount ++;
			return object;

		}

		return _objectPool[ _objectCount ++ ];

	}

	function getNextVertexInPool() {

		if ( _vertexCount === _vertexPoolLength ) {

			var vertex = new THREE.RenderableVertex();
			_vertexPool.push( vertex );
			_vertexPoolLength ++;
			_vertexCount ++;
			return vertex;

		}

		return _vertexPool[ _vertexCount ++ ];

	}

	function getNextFaceInPool() {

		if ( _faceCount === _facePoolLength ) {

			var face = new THREE.RenderableFace();
			_facePool.push( face );
			_facePoolLength ++;
			_faceCount ++;
			return face;

		}

		return _facePool[ _faceCount ++ ];


	}

	function getNextLineInPool() {

		if ( _lineCount === _linePoolLength ) {

			var line = new THREE.RenderableLine();
			_linePool.push( line );
			_linePoolLength ++;
			_lineCount ++;
			return line;

		}

		return _linePool[ _lineCount ++ ];

	}

	function getNextSpriteInPool() {

		if ( _spriteCount === _spritePoolLength ) {

			var sprite = new THREE.RenderableSprite();
			_spritePool.push( sprite );
			_spritePoolLength ++;
			_spriteCount ++;
			return sprite;

		}

		return _spritePool[ _spriteCount ++ ];

	}

	//

	function painterSort( a, b ) {

		if ( a.renderOrder !== b.renderOrder ) {

			return a.renderOrder - b.renderOrder;

		} else if ( a.z !== b.z ) {

			return b.z - a.z;

		} else if ( a.id !== b.id ) {

			return a.id - b.id;

		} else {

			return 0;

		}

	}

	function clipLine( s1, s2 ) {

		var alpha1 = 0, alpha2 = 1,

		// Calculate the boundary coordinate of each vertex for the near and far clip planes,
		// Z = -1 and Z = +1, respectively.

			bc1near = s1.z + s1.w,
			bc2near = s2.z + s2.w,
			bc1far = - s1.z + s1.w,
			bc2far = - s2.z + s2.w;

		if ( bc1near >= 0 && bc2near >= 0 && bc1far >= 0 && bc2far >= 0 ) {

			// Both vertices lie entirely within all clip planes.
			return true;

		} else if ( ( bc1near < 0 && bc2near < 0 ) || ( bc1far < 0 && bc2far < 0 ) ) {

			// Both vertices lie entirely outside one of the clip planes.
			return false;

		} else {

			// The line segment spans at least one clip plane.

			if ( bc1near < 0 ) {

				// v1 lies outside the near plane, v2 inside
				alpha1 = Math.max( alpha1, bc1near / ( bc1near - bc2near ) );

			} else if ( bc2near < 0 ) {

				// v2 lies outside the near plane, v1 inside
				alpha2 = Math.min( alpha2, bc1near / ( bc1near - bc2near ) );

			}

			if ( bc1far < 0 ) {

				// v1 lies outside the far plane, v2 inside
				alpha1 = Math.max( alpha1, bc1far / ( bc1far - bc2far ) );

			} else if ( bc2far < 0 ) {

				// v2 lies outside the far plane, v2 inside
				alpha2 = Math.min( alpha2, bc1far / ( bc1far - bc2far ) );

			}

			if ( alpha2 < alpha1 ) {

				// The line segment spans two boundaries, but is outside both of them.
				// (This can't happen when we're only clipping against just near/far but good
				//  to leave the check here for future usage if other clip planes are added.)
				return false;

			} else {

				// Update the s1 and s2 vertices to match the clipped line segment.
				s1.lerp( s2, alpha1 );
				s2.lerp( s1, 1 - alpha2 );

				return true;

			}

		}

	}

};
;// tween.js - http://github.com/sole/tween.js
'use strict';var TWEEN=TWEEN||function(){var a=[];return{REVISION:"7",getAll:function(){return a},removeAll:function(){a=[]},add:function(c){a.push(c)},remove:function(c){c=a.indexOf(c);-1!==c&&a.splice(c,1)},update:function(c){if(0===a.length)return!1;for(var b=0,d=a.length,c=void 0!==c?c:Date.now();b<d;)a[b].update(c)?b++:(a.splice(b,1),d--);return!0}}}();
TWEEN.Tween=function(a){var c={},b={},d=1E3,e=0,f=null,h=TWEEN.Easing.Linear.None,r=TWEEN.Interpolation.Linear,k=[],l=null,m=!1,n=null,p=null;this.to=function(a,c){null!==c&&(d=c);b=a;return this};this.start=function(d){TWEEN.add(this);m=!1;f=void 0!==d?d:Date.now();f+=e;for(var g in b)if(null!==a[g]){if(b[g]instanceof Array){if(0===b[g].length)continue;b[g]=[a[g]].concat(b[g])}c[g]=a[g]}return this};this.stop=function(){TWEEN.remove(this);return this};this.delay=function(a){e=a;return this};this.easing=
function(a){h=a;return this};this.interpolation=function(a){r=a;return this};this.chain=function(){k=arguments;return this};this.onStart=function(a){l=a;return this};this.onUpdate=function(a){n=a;return this};this.onComplete=function(a){p=a;return this};this.update=function(e){if(e<f)return!0;!1===m&&(null!==l&&l.call(a),m=!0);var g=(e-f)/d,g=1<g?1:g,i=h(g),j;for(j in c){var s=c[j],q=b[j];a[j]=q instanceof Array?r(q,i):s+(q-s)*i}null!==n&&n.call(a,i);if(1==g){null!==p&&p.call(a);g=0;for(i=k.length;g<
i;g++)k[g].start(e);return!1}return!0}};
TWEEN.Easing={Linear:{None:function(a){return a}},Quadratic:{In:function(a){return a*a},Out:function(a){return a*(2-a)},InOut:function(a){return 1>(a*=2)?0.5*a*a:-0.5*(--a*(a-2)-1)}},Cubic:{In:function(a){return a*a*a},Out:function(a){return--a*a*a+1},InOut:function(a){return 1>(a*=2)?0.5*a*a*a:0.5*((a-=2)*a*a+2)}},Quartic:{In:function(a){return a*a*a*a},Out:function(a){return 1- --a*a*a*a},InOut:function(a){return 1>(a*=2)?0.5*a*a*a*a:-0.5*((a-=2)*a*a*a-2)}},Quintic:{In:function(a){return a*a*a*
a*a},Out:function(a){return--a*a*a*a*a+1},InOut:function(a){return 1>(a*=2)?0.5*a*a*a*a*a:0.5*((a-=2)*a*a*a*a+2)}},Sinusoidal:{In:function(a){return 1-Math.cos(a*Math.PI/2)},Out:function(a){return Math.sin(a*Math.PI/2)},InOut:function(a){return 0.5*(1-Math.cos(Math.PI*a))}},Exponential:{In:function(a){return 0===a?0:Math.pow(1024,a-1)},Out:function(a){return 1===a?1:1-Math.pow(2,-10*a)},InOut:function(a){return 0===a?0:1===a?1:1>(a*=2)?0.5*Math.pow(1024,a-1):0.5*(-Math.pow(2,-10*(a-1))+2)}},Circular:{In:function(a){return 1-
Math.sqrt(1-a*a)},Out:function(a){return Math.sqrt(1- --a*a)},InOut:function(a){return 1>(a*=2)?-0.5*(Math.sqrt(1-a*a)-1):0.5*(Math.sqrt(1-(a-=2)*a)+1)}},Elastic:{In:function(a){var c,b=0.1;if(0===a)return 0;if(1===a)return 1;!b||1>b?(b=1,c=0.1):c=0.4*Math.asin(1/b)/(2*Math.PI);return-(b*Math.pow(2,10*(a-=1))*Math.sin((a-c)*2*Math.PI/0.4))},Out:function(a){var c,b=0.1;if(0===a)return 0;if(1===a)return 1;!b||1>b?(b=1,c=0.1):c=0.4*Math.asin(1/b)/(2*Math.PI);return b*Math.pow(2,-10*a)*Math.sin((a-c)*
2*Math.PI/0.4)+1},InOut:function(a){var c,b=0.1;if(0===a)return 0;if(1===a)return 1;!b||1>b?(b=1,c=0.1):c=0.4*Math.asin(1/b)/(2*Math.PI);return 1>(a*=2)?-0.5*b*Math.pow(2,10*(a-=1))*Math.sin((a-c)*2*Math.PI/0.4):0.5*b*Math.pow(2,-10*(a-=1))*Math.sin((a-c)*2*Math.PI/0.4)+1}},Back:{In:function(a){return a*a*(2.70158*a-1.70158)},Out:function(a){return--a*a*(2.70158*a+1.70158)+1},InOut:function(a){return 1>(a*=2)?0.5*a*a*(3.5949095*a-2.5949095):0.5*((a-=2)*a*(3.5949095*a+2.5949095)+2)}},Bounce:{In:function(a){return 1-
TWEEN.Easing.Bounce.Out(1-a)},Out:function(a){return a<1/2.75?7.5625*a*a:a<2/2.75?7.5625*(a-=1.5/2.75)*a+0.75:a<2.5/2.75?7.5625*(a-=2.25/2.75)*a+0.9375:7.5625*(a-=2.625/2.75)*a+0.984375},InOut:function(a){return 0.5>a?0.5*TWEEN.Easing.Bounce.In(2*a):0.5*TWEEN.Easing.Bounce.Out(2*a-1)+0.5}}};
TWEEN.Interpolation={Linear:function(a,c){var b=a.length-1,d=b*c,e=Math.floor(d),f=TWEEN.Interpolation.Utils.Linear;return 0>c?f(a[0],a[1],d):1<c?f(a[b],a[b-1],b-d):f(a[e],a[e+1>b?b:e+1],d-e)},Bezier:function(a,c){var b=0,d=a.length-1,e=Math.pow,f=TWEEN.Interpolation.Utils.Bernstein,h;for(h=0;h<=d;h++)b+=e(1-c,d-h)*e(c,h)*a[h]*f(d,h);return b},CatmullRom:function(a,c){var b=a.length-1,d=b*c,e=Math.floor(d),f=TWEEN.Interpolation.Utils.CatmullRom;return a[0]===a[b]?(0>c&&(e=Math.floor(d=b*(1+c))),f(a[(e-
1+b)%b],a[e],a[(e+1)%b],a[(e+2)%b],d-e)):0>c?a[0]-(f(a[0],a[0],a[1],a[1],-d)-a[0]):1<c?a[b]-(f(a[b],a[b],a[b-1],a[b-1],d-b)-a[b]):f(a[e?e-1:0],a[e],a[b<e+1?b:e+1],a[b<e+2?b:e+2],d-e)},Utils:{Linear:function(a,c,b){return(c-a)*b+a},Bernstein:function(a,c){var b=TWEEN.Interpolation.Utils.Factorial;return b(a)/b(c)/b(a-c)},Factorial:function(){var a=[1];return function(c){var b=1,d;if(a[c])return a[c];for(d=c;1<d;d--)b*=d;return a[c]=b}}(),CatmullRom:function(a,c,b,d,e){var a=0.5*(b-a),d=0.5*(d-c),f=
e*e;return(2*c-2*b+a+d)*e*f+(-3*c+3*b-2*a-d)*f+a*e+c}}};
;/** @license zlib.js 2012 - imaya [ https://github.com/imaya/zlib.js ] The MIT License */(function() {'use strict';var l=void 0,aa=this;function r(c,d){var a=c.split("."),b=aa;!(a[0]in b)&&b.execScript&&b.execScript("var "+a[0]);for(var e;a.length&&(e=a.shift());)!a.length&&d!==l?b[e]=d:b=b[e]?b[e]:b[e]={}};var t="undefined"!==typeof Uint8Array&&"undefined"!==typeof Uint16Array&&"undefined"!==typeof Uint32Array&&"undefined"!==typeof DataView;function v(c){var d=c.length,a=0,b=Number.POSITIVE_INFINITY,e,f,g,h,k,m,n,p,s,x;for(p=0;p<d;++p)c[p]>a&&(a=c[p]),c[p]<b&&(b=c[p]);e=1<<a;f=new (t?Uint32Array:Array)(e);g=1;h=0;for(k=2;g<=a;){for(p=0;p<d;++p)if(c[p]===g){m=0;n=h;for(s=0;s<g;++s)m=m<<1|n&1,n>>=1;x=g<<16|p;for(s=m;s<e;s+=k)f[s]=x;++h}++g;h<<=1;k<<=1}return[f,a,b]};function w(c,d){this.g=[];this.h=32768;this.d=this.f=this.a=this.l=0;this.input=t?new Uint8Array(c):c;this.m=!1;this.i=y;this.r=!1;if(d||!(d={}))d.index&&(this.a=d.index),d.bufferSize&&(this.h=d.bufferSize),d.bufferType&&(this.i=d.bufferType),d.resize&&(this.r=d.resize);switch(this.i){case A:this.b=32768;this.c=new (t?Uint8Array:Array)(32768+this.h+258);break;case y:this.b=0;this.c=new (t?Uint8Array:Array)(this.h);this.e=this.z;this.n=this.v;this.j=this.w;break;default:throw Error("invalid inflate mode");
}}var A=0,y=1,B={t:A,s:y};
w.prototype.k=function(){for(;!this.m;){var c=C(this,3);c&1&&(this.m=!0);c>>>=1;switch(c){case 0:var d=this.input,a=this.a,b=this.c,e=this.b,f=d.length,g=l,h=l,k=b.length,m=l;this.d=this.f=0;if(a+1>=f)throw Error("invalid uncompressed block header: LEN");g=d[a++]|d[a++]<<8;if(a+1>=f)throw Error("invalid uncompressed block header: NLEN");h=d[a++]|d[a++]<<8;if(g===~h)throw Error("invalid uncompressed block header: length verify");if(a+g>d.length)throw Error("input buffer is broken");switch(this.i){case A:for(;e+
g>b.length;){m=k-e;g-=m;if(t)b.set(d.subarray(a,a+m),e),e+=m,a+=m;else for(;m--;)b[e++]=d[a++];this.b=e;b=this.e();e=this.b}break;case y:for(;e+g>b.length;)b=this.e({p:2});break;default:throw Error("invalid inflate mode");}if(t)b.set(d.subarray(a,a+g),e),e+=g,a+=g;else for(;g--;)b[e++]=d[a++];this.a=a;this.b=e;this.c=b;break;case 1:this.j(ba,ca);break;case 2:for(var n=C(this,5)+257,p=C(this,5)+1,s=C(this,4)+4,x=new (t?Uint8Array:Array)(D.length),S=l,T=l,U=l,u=l,M=l,F=l,z=l,q=l,V=l,q=0;q<s;++q)x[D[q]]=
C(this,3);if(!t){q=s;for(s=x.length;q<s;++q)x[D[q]]=0}S=v(x);u=new (t?Uint8Array:Array)(n+p);q=0;for(V=n+p;q<V;)switch(M=E(this,S),M){case 16:for(z=3+C(this,2);z--;)u[q++]=F;break;case 17:for(z=3+C(this,3);z--;)u[q++]=0;F=0;break;case 18:for(z=11+C(this,7);z--;)u[q++]=0;F=0;break;default:F=u[q++]=M}T=t?v(u.subarray(0,n)):v(u.slice(0,n));U=t?v(u.subarray(n)):v(u.slice(n));this.j(T,U);break;default:throw Error("unknown BTYPE: "+c);}}return this.n()};
var G=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],D=t?new Uint16Array(G):G,H=[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,258,258],I=t?new Uint16Array(H):H,J=[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0],K=t?new Uint8Array(J):J,L=[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577],da=t?new Uint16Array(L):L,ea=[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,
13,13],N=t?new Uint8Array(ea):ea,O=new (t?Uint8Array:Array)(288),P,fa;P=0;for(fa=O.length;P<fa;++P)O[P]=143>=P?8:255>=P?9:279>=P?7:8;var ba=v(O),Q=new (t?Uint8Array:Array)(30),R,ga;R=0;for(ga=Q.length;R<ga;++R)Q[R]=5;var ca=v(Q);function C(c,d){for(var a=c.f,b=c.d,e=c.input,f=c.a,g=e.length,h;b<d;){if(f>=g)throw Error("input buffer is broken");a|=e[f++]<<b;b+=8}h=a&(1<<d)-1;c.f=a>>>d;c.d=b-d;c.a=f;return h}
function E(c,d){for(var a=c.f,b=c.d,e=c.input,f=c.a,g=e.length,h=d[0],k=d[1],m,n;b<k&&!(f>=g);)a|=e[f++]<<b,b+=8;m=h[a&(1<<k)-1];n=m>>>16;if(n>b)throw Error("invalid code length: "+n);c.f=a>>n;c.d=b-n;c.a=f;return m&65535}
w.prototype.j=function(c,d){var a=this.c,b=this.b;this.o=c;for(var e=a.length-258,f,g,h,k;256!==(f=E(this,c));)if(256>f)b>=e&&(this.b=b,a=this.e(),b=this.b),a[b++]=f;else{g=f-257;k=I[g];0<K[g]&&(k+=C(this,K[g]));f=E(this,d);h=da[f];0<N[f]&&(h+=C(this,N[f]));b>=e&&(this.b=b,a=this.e(),b=this.b);for(;k--;)a[b]=a[b++-h]}for(;8<=this.d;)this.d-=8,this.a--;this.b=b};
w.prototype.w=function(c,d){var a=this.c,b=this.b;this.o=c;for(var e=a.length,f,g,h,k;256!==(f=E(this,c));)if(256>f)b>=e&&(a=this.e(),e=a.length),a[b++]=f;else{g=f-257;k=I[g];0<K[g]&&(k+=C(this,K[g]));f=E(this,d);h=da[f];0<N[f]&&(h+=C(this,N[f]));b+k>e&&(a=this.e(),e=a.length);for(;k--;)a[b]=a[b++-h]}for(;8<=this.d;)this.d-=8,this.a--;this.b=b};
w.prototype.e=function(){var c=new (t?Uint8Array:Array)(this.b-32768),d=this.b-32768,a,b,e=this.c;if(t)c.set(e.subarray(32768,c.length));else{a=0;for(b=c.length;a<b;++a)c[a]=e[a+32768]}this.g.push(c);this.l+=c.length;if(t)e.set(e.subarray(d,d+32768));else for(a=0;32768>a;++a)e[a]=e[d+a];this.b=32768;return e};
w.prototype.z=function(c){var d,a=this.input.length/this.a+1|0,b,e,f,g=this.input,h=this.c;c&&("number"===typeof c.p&&(a=c.p),"number"===typeof c.u&&(a+=c.u));2>a?(b=(g.length-this.a)/this.o[2],f=258*(b/2)|0,e=f<h.length?h.length+f:h.length<<1):e=h.length*a;t?(d=new Uint8Array(e),d.set(h)):d=h;return this.c=d};
w.prototype.n=function(){var c=0,d=this.c,a=this.g,b,e=new (t?Uint8Array:Array)(this.l+(this.b-32768)),f,g,h,k;if(0===a.length)return t?this.c.subarray(32768,this.b):this.c.slice(32768,this.b);f=0;for(g=a.length;f<g;++f){b=a[f];h=0;for(k=b.length;h<k;++h)e[c++]=b[h]}f=32768;for(g=this.b;f<g;++f)e[c++]=d[f];this.g=[];return this.buffer=e};
w.prototype.v=function(){var c,d=this.b;t?this.r?(c=new Uint8Array(d),c.set(this.c.subarray(0,d))):c=this.c.subarray(0,d):(this.c.length>d&&(this.c.length=d),c=this.c);return this.buffer=c};function W(c,d){var a,b;this.input=c;this.a=0;if(d||!(d={}))d.index&&(this.a=d.index),d.verify&&(this.A=d.verify);a=c[this.a++];b=c[this.a++];switch(a&15){case ha:this.method=ha;break;default:throw Error("unsupported compression method");}if(0!==((a<<8)+b)%31)throw Error("invalid fcheck flag:"+((a<<8)+b)%31);if(b&32)throw Error("fdict flag is not supported");this.q=new w(c,{index:this.a,bufferSize:d.bufferSize,bufferType:d.bufferType,resize:d.resize})}
W.prototype.k=function(){var c=this.input,d,a;d=this.q.k();this.a=this.q.a;if(this.A){a=(c[this.a++]<<24|c[this.a++]<<16|c[this.a++]<<8|c[this.a++])>>>0;var b=d;if("string"===typeof b){var e=b.split(""),f,g;f=0;for(g=e.length;f<g;f++)e[f]=(e[f].charCodeAt(0)&255)>>>0;b=e}for(var h=1,k=0,m=b.length,n,p=0;0<m;){n=1024<m?1024:m;m-=n;do h+=b[p++],k+=h;while(--n);h%=65521;k%=65521}if(a!==(k<<16|h)>>>0)throw Error("invalid adler-32 checksum");}return d};var ha=8;r("Zlib.Inflate",W);r("Zlib.Inflate.prototype.decompress",W.prototype.k);var X={ADAPTIVE:B.s,BLOCK:B.t},Y,Z,$,ia;if(Object.keys)Y=Object.keys(X);else for(Z in Y=[],$=0,X)Y[$++]=Z;$=0;for(ia=Y.length;$<ia;++$)Z=Y[$],r("Zlib.Inflate.BufferType."+Z,X[Z]);}).call(this);
;/**
 * @author Kyle-Larson https://github.com/Kyle-Larson
 * @author Takahiro https://github.com/takahirox
 * @author Lewy Blue https://github.com/looeee
 *
 * Loader loads FBX file and generates Group representing FBX scene.
 * Requires FBX file to be >= 7.0 and in ASCII or >= 6400 in Binary format
 * Versions lower than this may load but will probably have errors
 *
 * Needs Support:
 *  Morph normals / blend shape normals
 *
 * FBX format references:
 * 	https://wiki.blender.org/index.php/User:Mont29/Foundation/FBX_File_Structure
 * 	http://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_index_html (C++ SDK reference)
 *
 * 	Binary format specification:
 *		https://code.blender.org/2013/08/fbx-binary-file-format-specification/
 */


THREE.FBXLoader = ( function () {

	var fbxTree;
	var connections;
	var sceneGraph;

	function FBXLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

	}

	FBXLoader.prototype = {

		constructor: FBXLoader,

		crossOrigin: 'anonymous',

		load: function ( url, onLoad, onProgress, onError ) {

			var self = this;

			var path = ( self.path === undefined ) ? THREE.LoaderUtils.extractUrlBase( url ) : self.path;

			var loader = new THREE.FileLoader( this.manager );
			loader.setPath( self.path );
			loader.setResponseType( 'arraybuffer' );
               // var url = 'http://thelinkphx.project:7777/obj/v2/BUILD.fbx';
			loader.load( url, function ( buffer ) {

				try {

					onLoad( self.parse( buffer, path ) );

				} catch ( error ) {

					setTimeout( function () {

						if ( onError ) onError( error );

						self.manager.itemError( url );

					}, 0 );

				}

			}, onProgress, onError );

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		},

		setResourcePath: function ( value ) {

			this.resourcePath = value;
			return this;

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		parse: function ( FBXBuffer, path ) {

			if ( isFbxFormatBinary( FBXBuffer ) ) {

				fbxTree = new BinaryParser().parse( FBXBuffer );

			} else {

				var FBXText = convertArrayBufferToString( FBXBuffer );

				if ( ! isFbxFormatASCII( FBXText ) ) {

					throw new Error( 'THREE.FBXLoader: Unknown format.' );

				}

				if ( getFbxVersion( FBXText ) < 7000 ) {

					throw new Error( 'THREE.FBXLoader: FBX version not supported, FileVersion: ' + getFbxVersion( FBXText ) );

				}

				fbxTree = new TextParser().parse( FBXText );

			}

			// console.log( fbxTree );

			var textureLoader = new THREE.TextureLoader( this.manager ).setPath( this.resourcePath || path ).setCrossOrigin( this.crossOrigin );

			return new FBXTreeParser( textureLoader ).parse( fbxTree );

		}

	};

	// Parse the FBXTree object returned by the BinaryParser or TextParser and return a THREE.Group
	function FBXTreeParser( textureLoader ) {

		this.textureLoader = textureLoader;

	}

	FBXTreeParser.prototype = {

		constructor: FBXTreeParser,

		parse: function () {

			connections = this.parseConnections();

			var images = this.parseImages();
			var textures = this.parseTextures( images );
			var materials = this.parseMaterials( textures );
			var deformers = this.parseDeformers();
			var geometryMap = new GeometryParser().parse( deformers );

			this.parseScene( deformers, geometryMap, materials );

			return sceneGraph;

		},

		// Parses FBXTree.Connections which holds parent-child connections between objects (e.g. material -> texture, model->geometry )
		// and details the connection type
		parseConnections: function () {

			var connectionMap = new Map();

			if ( 'Connections' in fbxTree ) {

				var rawConnections = fbxTree.Connections.connections;

				rawConnections.forEach( function ( rawConnection ) {

					var fromID = rawConnection[ 0 ];
					var toID = rawConnection[ 1 ];
					var relationship = rawConnection[ 2 ];

					if ( ! connectionMap.has( fromID ) ) {

						connectionMap.set( fromID, {
							parents: [],
							children: []
						} );

					}

					var parentRelationship = { ID: toID, relationship: relationship };
					connectionMap.get( fromID ).parents.push( parentRelationship );

					if ( ! connectionMap.has( toID ) ) {

						connectionMap.set( toID, {
							parents: [],
							children: []
						} );

					}

					var childRelationship = { ID: fromID, relationship: relationship };
					connectionMap.get( toID ).children.push( childRelationship );

				} );

			}

			return connectionMap;

		},

		// Parse FBXTree.Objects.Video for embedded image data
		// These images are connected to textures in FBXTree.Objects.Textures
		// via FBXTree.Connections.
		parseImages: function () {

			var images = {};
			var blobs = {};

			if ( 'Video' in fbxTree.Objects ) {

				var videoNodes = fbxTree.Objects.Video;

				for ( var nodeID in videoNodes ) {

					var videoNode = videoNodes[ nodeID ];

					var id = parseInt( nodeID );

					images[ id ] = videoNode.RelativeFilename || videoNode.Filename;

					// raw image data is in videoNode.Content
					if ( 'Content' in videoNode ) {

						var arrayBufferContent = ( videoNode.Content instanceof ArrayBuffer ) && ( videoNode.Content.byteLength > 0 );
						var base64Content = ( typeof videoNode.Content === 'string' ) && ( videoNode.Content !== '' );

						if ( arrayBufferContent || base64Content ) {

							var image = this.parseImage( videoNodes[ nodeID ] );

							blobs[ videoNode.RelativeFilename || videoNode.Filename ] = image;

						}

					}

				}

			}

			for ( var id in images ) {

				var filename = images[ id ];

				if ( blobs[ filename ] !== undefined ) images[ id ] = blobs[ filename ];
				else images[ id ] = images[ id ].split( '\\' ).pop();

			}

			return images;

		},

		// Parse embedded image data in FBXTree.Video.Content
		parseImage: function ( videoNode ) {

			var content = videoNode.Content;
			var fileName = videoNode.RelativeFilename || videoNode.Filename;
			var extension = fileName.slice( fileName.lastIndexOf( '.' ) + 1 ).toLowerCase();

			var type;

			switch ( extension ) {

				case 'bmp':

					type = 'image/bmp';
					break;

				case 'jpg':
				case 'jpeg':

					type = 'image/jpeg';
					break;

				case 'png':

					type = 'image/png';
					break;

				case 'tif':

					type = 'image/tiff';
					break;

				case 'tga':

					if ( typeof THREE.TGALoader !== 'function' ) {

						console.warn( 'FBXLoader: THREE.TGALoader is required to load TGA textures' );
						return;

					} else {

						if ( THREE.Loader.Handlers.get( '.tga' ) === null ) {

							var tgaLoader = new THREE.TGALoader();
							tgaLoader.setPath( this.textureLoader.path );

							THREE.Loader.Handlers.add( /\.tga$/i, tgaLoader );

						}

						type = 'image/tga';
						break;

					}

				default:

					console.warn( 'FBXLoader: Image type "' + extension + '" is not supported.' );
					return;

			}

			if ( typeof content === 'string' ) { // ASCII format

				return 'data:' + type + ';base64,' + content;

			} else { // Binary Format

				var array = new Uint8Array( content );
				return window.URL.createObjectURL( new Blob( [ array ], { type: type } ) );

			}

		},

		// Parse nodes in FBXTree.Objects.Texture
		// These contain details such as UV scaling, cropping, rotation etc and are connected
		// to images in FBXTree.Objects.Video
		parseTextures: function ( images ) {

			var textureMap = new Map();

			if ( 'Texture' in fbxTree.Objects ) {

				var textureNodes = fbxTree.Objects.Texture;
				for ( var nodeID in textureNodes ) {

					var texture = this.parseTexture( textureNodes[ nodeID ], images );
					textureMap.set( parseInt( nodeID ), texture );

				}

			}

			return textureMap;

		},

		// Parse individual node in FBXTree.Objects.Texture
		parseTexture: function ( textureNode, images ) {

			var texture = this.loadTexture( textureNode, images );

			texture.ID = textureNode.id;

			texture.name = textureNode.attrName;

			var wrapModeU = textureNode.WrapModeU;
			var wrapModeV = textureNode.WrapModeV;

			var valueU = wrapModeU !== undefined ? wrapModeU.value : 0;
			var valueV = wrapModeV !== undefined ? wrapModeV.value : 0;

			// http://download.autodesk.com/us/fbx/SDKdocs/FBX_SDK_Help/files/fbxsdkref/class_k_fbx_texture.html#889640e63e2e681259ea81061b85143a
			// 0: repeat(default), 1: clamp

			texture.wrapS = valueU === 0 ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;
			texture.wrapT = valueV === 0 ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;

			if ( 'Scaling' in textureNode ) {

				var values = textureNode.Scaling.value;

				texture.repeat.x = values[ 0 ];
				texture.repeat.y = values[ 1 ];

			}

			return texture;

		},

		// load a texture specified as a blob or data URI, or via an external URL using THREE.TextureLoader
		loadTexture: function ( textureNode, images ) {

			var fileName;

			var currentPath = this.textureLoader.path;

			var children = connections.get( textureNode.id ).children;

			if ( children !== undefined && children.length > 0 && images[ children[ 0 ].ID ] !== undefined ) {

				fileName = images[ children[ 0 ].ID ];

				if ( fileName.indexOf( 'blob:' ) === 0 || fileName.indexOf( 'data:' ) === 0 ) {

					this.textureLoader.setPath( undefined );

				}

			}

			var texture;

			var extension = textureNode.FileName.slice( - 3 ).toLowerCase();

			if ( extension === 'tga' ) {

				var loader = THREE.Loader.Handlers.get( '.tga' );

				if ( loader === null ) {

					console.warn( 'FBXLoader: TGALoader not found, creating empty placeholder texture for', fileName );
					texture = new THREE.Texture();

				} else {

					texture = loader.load( fileName );

				}

			} else if ( extension === 'psd' ) {

				console.warn( 'FBXLoader: PSD textures are not supported, creating empty placeholder texture for', fileName );
				texture = new THREE.Texture();

			} else {

				texture = this.textureLoader.load( fileName );

			}

			this.textureLoader.setPath( currentPath );

			return texture;

		},

		// Parse nodes in FBXTree.Objects.Material
		parseMaterials: function ( textureMap ) {

			var materialMap = new Map();

			if ( 'Material' in fbxTree.Objects ) {

				var materialNodes = fbxTree.Objects.Material;

				for ( var nodeID in materialNodes ) {

					var material = this.parseMaterial( materialNodes[ nodeID ], textureMap );

					if ( material !== null ) materialMap.set( parseInt( nodeID ), material );

				}

			}

			return materialMap;

		},

		// Parse single node in FBXTree.Objects.Material
		// Materials are connected to texture maps in FBXTree.Objects.Textures
		// FBX format currently only supports Lambert and Phong shading models
		parseMaterial: function ( materialNode, textureMap ) {

			var ID = materialNode.id;
			var name = materialNode.attrName;
			var type = materialNode.ShadingModel;

			// Case where FBX wraps shading model in property object.
			if ( typeof type === 'object' ) {

				type = type.value;

			}

			// Ignore unused materials which don't have any connections.
			if ( ! connections.has( ID ) ) return null;

			var parameters = this.parseParameters( materialNode, textureMap, ID );

			var material;

			switch ( type.toLowerCase() ) {

				case 'phong':
					material = new THREE.MeshPhongMaterial();
					break;
				case 'lambert':
					material = new THREE.MeshLambertMaterial();
					break;
				default:
					//console.warn( 'THREE.FBXLoader: unknown material type "%s". Defaulting to MeshPhongMaterial.', type );
					material = new THREE.MeshPhongMaterial();
					break;

			}

			material.setValues( parameters );
			material.name = name;

			return material;

		},

		// Parse FBX material and return parameters suitable for a three.js material
		// Also parse the texture map and return any textures associated with the material
		parseParameters: function ( materialNode, textureMap, ID ) {

			var parameters = {};

			if ( materialNode.BumpFactor ) {

				parameters.bumpScale = materialNode.BumpFactor.value;

			}
			if ( materialNode.Diffuse ) {

				parameters.color = new THREE.Color().fromArray( materialNode.Diffuse.value );

			} else if ( materialNode.DiffuseColor && materialNode.DiffuseColor.type === 'Color' ) {

				// The blender exporter exports diffuse here instead of in materialNode.Diffuse
				parameters.color = new THREE.Color().fromArray( materialNode.DiffuseColor.value );

			}

			if ( materialNode.DisplacementFactor ) {

				parameters.displacementScale = materialNode.DisplacementFactor.value;

			}

			if ( materialNode.Emissive ) {

				parameters.emissive = new THREE.Color().fromArray( materialNode.Emissive.value );

			} else if ( materialNode.EmissiveColor && materialNode.EmissiveColor.type === 'Color' ) {

				// The blender exporter exports emissive color here instead of in materialNode.Emissive
				parameters.emissive = new THREE.Color().fromArray( materialNode.EmissiveColor.value );

			}

			if ( materialNode.EmissiveFactor ) {

				parameters.emissiveIntensity = parseFloat( materialNode.EmissiveFactor.value );

			}

			if ( materialNode.Opacity ) {

				parameters.opacity = parseFloat( materialNode.Opacity.value );

			}

			if ( parameters.opacity < 1.0 ) {

				parameters.transparent = true;

			}

			if ( materialNode.ReflectionFactor ) {

				parameters.reflectivity = materialNode.ReflectionFactor.value;

			}

			if ( materialNode.Shininess ) {

				parameters.shininess = materialNode.Shininess.value;

			}

			if ( materialNode.Specular ) {

				parameters.specular = new THREE.Color().fromArray( materialNode.Specular.value );

			} else if ( materialNode.SpecularColor && materialNode.SpecularColor.type === 'Color' ) {

				// The blender exporter exports specular color here instead of in materialNode.Specular
				parameters.specular = new THREE.Color().fromArray( materialNode.SpecularColor.value );

			}

			var self = this;
			connections.get( ID ).children.forEach( function ( child ) {

				var type = child.relationship;

				switch ( type ) {

					case 'Bump':
						parameters.bumpMap = self.getTexture( textureMap, child.ID );
						break;

					case 'Maya|TEX_ao_map':
						parameters.aoMap = self.getTexture( textureMap, child.ID );
						break;

					case 'DiffuseColor':
					case 'Maya|TEX_color_map':
						parameters.map = self.getTexture( textureMap, child.ID );
						break;

					case 'DisplacementColor':
						parameters.displacementMap = self.getTexture( textureMap, child.ID );
						break;

					case 'EmissiveColor':
						parameters.emissiveMap = self.getTexture( textureMap, child.ID );
						break;

					case 'NormalMap':
					case 'Maya|TEX_normal_map':
						parameters.normalMap = self.getTexture( textureMap, child.ID );
						break;

					case 'ReflectionColor':
						parameters.envMap = self.getTexture( textureMap, child.ID );
						parameters.envMap.mapping = THREE.EquirectangularReflectionMapping;
						break;

					case 'SpecularColor':
						parameters.specularMap = self.getTexture( textureMap, child.ID );
						break;

					case 'TransparentColor':
						parameters.alphaMap = self.getTexture( textureMap, child.ID );
						parameters.transparent = true;
						break;

					case 'AmbientColor':
					case 'ShininessExponent': // AKA glossiness map
					case 'SpecularFactor': // AKA specularLevel
					case 'VectorDisplacementColor': // NOTE: Seems to be a copy of DisplacementColor
					default:
						console.warn( 'THREE.FBXLoader: %s map is not supported in three.js, skipping texture.', type );
						break;

				}

			} );

			return parameters;

		},

		// get a texture from the textureMap for use by a material.
		getTexture: function ( textureMap, id ) {

			// if the texture is a layered texture, just use the first layer and issue a warning
			if ( 'LayeredTexture' in fbxTree.Objects && id in fbxTree.Objects.LayeredTexture ) {

				console.warn( 'THREE.FBXLoader: layered textures are not supported in three.js. Discarding all but first layer.' );
				id = connections.get( id ).children[ 0 ].ID;

			}

			return textureMap.get( id );

		},

		// Parse nodes in FBXTree.Objects.Deformer
		// Deformer node can contain skinning or Vertex Cache animation data, however only skinning is supported here
		// Generates map of Skeleton-like objects for use later when generating and binding skeletons.
		parseDeformers: function () {

			var skeletons = {};
			var morphTargets = {};

			if ( 'Deformer' in fbxTree.Objects ) {

				var DeformerNodes = fbxTree.Objects.Deformer;

				for ( var nodeID in DeformerNodes ) {

					var deformerNode = DeformerNodes[ nodeID ];

					var relationships = connections.get( parseInt( nodeID ) );

					if ( deformerNode.attrType === 'Skin' ) {

						var skeleton = this.parseSkeleton( relationships, DeformerNodes );
						skeleton.ID = nodeID;

						if ( relationships.parents.length > 1 ) console.warn( 'THREE.FBXLoader: skeleton attached to more than one geometry is not supported.' );
						skeleton.geometryID = relationships.parents[ 0 ].ID;

						skeletons[ nodeID ] = skeleton;

					} else if ( deformerNode.attrType === 'BlendShape' ) {

						var morphTarget = {
							id: nodeID,
						};

						morphTarget.rawTargets = this.parseMorphTargets( relationships, DeformerNodes );
						morphTarget.id = nodeID;

						if ( relationships.parents.length > 1 ) console.warn( 'THREE.FBXLoader: morph target attached to more than one geometry is not supported.' );

						morphTargets[ nodeID ] = morphTarget;

					}

				}

			}

			return {

				skeletons: skeletons,
				morphTargets: morphTargets,

			};

		},

		// Parse single nodes in FBXTree.Objects.Deformer
		// The top level skeleton node has type 'Skin' and sub nodes have type 'Cluster'
		// Each skin node represents a skeleton and each cluster node represents a bone
		parseSkeleton: function ( relationships, deformerNodes ) {

			var rawBones = [];

			relationships.children.forEach( function ( child ) {

				var boneNode = deformerNodes[ child.ID ];

				if ( boneNode.attrType !== 'Cluster' ) return;

				var rawBone = {

					ID: child.ID,
					indices: [],
					weights: [],
					transformLink: new THREE.Matrix4().fromArray( boneNode.TransformLink.a ),
					// transform: new THREE.Matrix4().fromArray( boneNode.Transform.a ),
					// linkMode: boneNode.Mode,

				};

				if ( 'Indexes' in boneNode ) {

					rawBone.indices = boneNode.Indexes.a;
					rawBone.weights = boneNode.Weights.a;

				}

				rawBones.push( rawBone );

			} );

			return {

				rawBones: rawBones,
				bones: []

			};

		},

		// The top level morph deformer node has type "BlendShape" and sub nodes have type "BlendShapeChannel"
		parseMorphTargets: function ( relationships, deformerNodes ) {

			var rawMorphTargets = [];

			for ( var i = 0; i < relationships.children.length; i ++ ) {

				var child = relationships.children[ i ];

				var morphTargetNode = deformerNodes[ child.ID ];

				var rawMorphTarget = {

					name: morphTargetNode.attrName,
					initialWeight: morphTargetNode.DeformPercent,
					id: morphTargetNode.id,
					fullWeights: morphTargetNode.FullWeights.a

				};

				if ( morphTargetNode.attrType !== 'BlendShapeChannel' ) return;

				rawMorphTarget.geoID = connections.get( parseInt( child.ID ) ).children.filter( function ( child ) {

					return child.relationship === undefined;

				} )[ 0 ].ID;

				rawMorphTargets.push( rawMorphTarget );

			}

			return rawMorphTargets;

		},

		// create the main THREE.Group() to be returned by the loader
		parseScene: function ( deformers, geometryMap, materialMap ) {

			sceneGraph = new THREE.Group();

			var modelMap = this.parseModels( deformers.skeletons, geometryMap, materialMap );

			var modelNodes = fbxTree.Objects.Model;

			var self = this;
			modelMap.forEach( function ( model ) {

				var modelNode = modelNodes[ model.ID ];
				self.setLookAtProperties( model, modelNode );

				var parentConnections = connections.get( model.ID ).parents;

				parentConnections.forEach( function ( connection ) {

					var parent = modelMap.get( connection.ID );
					if ( parent !== undefined ) parent.add( model );

				} );

				if ( model.parent === null ) {

					sceneGraph.add( model );

				}


			} );

			this.bindSkeleton( deformers.skeletons, geometryMap, modelMap );

			this.createAmbientLight();

			this.setupMorphMaterials();

			sceneGraph.traverse( function ( node ) {

				if ( node.userData.transformData ) {

					if ( node.parent ) node.userData.transformData.parentMatrixWorld = node.parent.matrix;

					var transform = generateTransform( node.userData.transformData );

					node.applyMatrix( transform );

				}

			} );

			var animations = new AnimationParser().parse();

			// if all the models where already combined in a single group, just return that
			if ( sceneGraph.children.length === 1 && sceneGraph.children[ 0 ].isGroup ) {

				sceneGraph.children[ 0 ].animations = animations;
				sceneGraph = sceneGraph.children[ 0 ];

			}

			sceneGraph.animations = animations;

		},

		// parse nodes in FBXTree.Objects.Model
		parseModels: function ( skeletons, geometryMap, materialMap ) {

			var modelMap = new Map();
			var modelNodes = fbxTree.Objects.Model;

			for ( var nodeID in modelNodes ) {

				var id = parseInt( nodeID );
				var node = modelNodes[ nodeID ];
				var relationships = connections.get( id );

				var model = this.buildSkeleton( relationships, skeletons, id, node.attrName );

				if ( ! model ) {

					switch ( node.attrType ) {

						case 'Camera':
							model = this.createCamera( relationships );
							break;
						case 'Light':
							model = this.createLight( relationships );
							break;
						case 'Mesh':
							model = this.createMesh( relationships, geometryMap, materialMap );
							break;
						case 'NurbsCurve':
							model = this.createCurve( relationships, geometryMap );
							break;
						case 'LimbNode':
						case 'Root':
							model = new THREE.Bone();
							break;
						case 'Null':
						default:
							model = new THREE.Group();
							break;

					}

					model.name = THREE.PropertyBinding.sanitizeNodeName( node.attrName );
					model.ID = id;

				}

				this.getTransformData( model, node );
				modelMap.set( id, model );

			}

			return modelMap;

		},

		buildSkeleton: function ( relationships, skeletons, id, name ) {

			var bone = null;

			relationships.parents.forEach( function ( parent ) {

				for ( var ID in skeletons ) {

					var skeleton = skeletons[ ID ];

					skeleton.rawBones.forEach( function ( rawBone, i ) {

						if ( rawBone.ID === parent.ID ) {

							var subBone = bone;
							bone = new THREE.Bone();

							bone.matrixWorld.copy( rawBone.transformLink );

							// set name and id here - otherwise in cases where "subBone" is created it will not have a name / id
							bone.name = THREE.PropertyBinding.sanitizeNodeName( name );
							bone.ID = id;

							skeleton.bones[ i ] = bone;

							// In cases where a bone is shared between multiple meshes
							// duplicate the bone here and and it as a child of the first bone
							if ( subBone !== null ) {

								bone.add( subBone );

							}

						}

					} );

				}

			} );

			return bone;

		},

		// create a THREE.PerspectiveCamera or THREE.OrthographicCamera
		createCamera: function ( relationships ) {

			var model;
			var cameraAttribute;

			relationships.children.forEach( function ( child ) {

				var attr = fbxTree.Objects.NodeAttribute[ child.ID ];

				if ( attr !== undefined ) {

					cameraAttribute = attr;

				}

			} );

			if ( cameraAttribute === undefined ) {

				model = new THREE.Object3D();

			} else {

				var type = 0;
				if ( cameraAttribute.CameraProjectionType !== undefined && cameraAttribute.CameraProjectionType.value === 1 ) {

					type = 1;

				}

				var nearClippingPlane = 1;
				if ( cameraAttribute.NearPlane !== undefined ) {

					nearClippingPlane = cameraAttribute.NearPlane.value / 1000;

				}

				var farClippingPlane = 1000;
				if ( cameraAttribute.FarPlane !== undefined ) {

					farClippingPlane = cameraAttribute.FarPlane.value / 1000;

				}


				var width = window.innerWidth;
				var height = window.innerHeight;

				if ( cameraAttribute.AspectWidth !== undefined && cameraAttribute.AspectHeight !== undefined ) {

					width = cameraAttribute.AspectWidth.value;
					height = cameraAttribute.AspectHeight.value;

				}

				var aspect = width / height;

				var fov = 45;
				if ( cameraAttribute.FieldOfView !== undefined ) {

					fov = cameraAttribute.FieldOfView.value;

				}

				var focalLength = cameraAttribute.FocalLength ? cameraAttribute.FocalLength.value : null;

				switch ( type ) {

					case 0: // Perspective
						model = new THREE.PerspectiveCamera( fov, aspect, nearClippingPlane, farClippingPlane );
						if ( focalLength !== null ) model.setFocalLength( focalLength );
						break;

					case 1: // Orthographic
						model = new THREE.OrthographicCamera( - width / 2, width / 2, height / 2, - height / 2, nearClippingPlane, farClippingPlane );
						break;

					default:
						console.warn( 'THREE.FBXLoader: Unknown camera type ' + type + '.' );
						model = new THREE.Object3D();
						break;

				}

			}

			return model;

		},

		// Create a THREE.DirectionalLight, THREE.PointLight or THREE.SpotLight
		createLight: function ( relationships ) {

			var model;
			var lightAttribute;

			relationships.children.forEach( function ( child ) {

				var attr = fbxTree.Objects.NodeAttribute[ child.ID ];

				if ( attr !== undefined ) {

					lightAttribute = attr;

				}

			} );

			if ( lightAttribute === undefined ) {

				model = new THREE.Object3D();

			} else {

				var type;

				// LightType can be undefined for Point lights
				if ( lightAttribute.LightType === undefined ) {

					type = 0;

				} else {

					type = lightAttribute.LightType.value;

				}

				var color = 0xffffff;

				if ( lightAttribute.Color !== undefined ) {

					color = new THREE.Color().fromArray( lightAttribute.Color.value );

				}

				var intensity = ( lightAttribute.Intensity === undefined ) ? 1 : lightAttribute.Intensity.value / 100;

				// light disabled
				if ( lightAttribute.CastLightOnObject !== undefined && lightAttribute.CastLightOnObject.value === 0 ) {

					intensity = 0;

				}

				var distance = 0;
				if ( lightAttribute.FarAttenuationEnd !== undefined ) {

					if ( lightAttribute.EnableFarAttenuation !== undefined && lightAttribute.EnableFarAttenuation.value === 0 ) {

						distance = 0;

					} else {

						distance = lightAttribute.FarAttenuationEnd.value;

					}

				}

				// TODO: could this be calculated linearly from FarAttenuationStart to FarAttenuationEnd?
				var decay = 1;

				switch ( type ) {

					case 0: // Point
						model = new THREE.PointLight( color, intensity, distance, decay );
						break;

					case 1: // Directional
						model = new THREE.DirectionalLight( color, intensity );
						break;

					case 2: // Spot
						var angle = Math.PI / 3;

						if ( lightAttribute.InnerAngle !== undefined ) {

							angle = THREE.Math.degToRad( lightAttribute.InnerAngle.value );

						}

						var penumbra = 0;
						if ( lightAttribute.OuterAngle !== undefined ) {

							// TODO: this is not correct - FBX calculates outer and inner angle in degrees
							// with OuterAngle > InnerAngle && OuterAngle <= Math.PI
							// while three.js uses a penumbra between (0, 1) to attenuate the inner angle
							penumbra = THREE.Math.degToRad( lightAttribute.OuterAngle.value );
							penumbra = Math.max( penumbra, 1 );

						}

						model = new THREE.SpotLight( color, intensity, distance, angle, penumbra, decay );
						break;

					default:
						console.warn( 'THREE.FBXLoader: Unknown light type ' + lightAttribute.LightType.value + ', defaulting to a THREE.PointLight.' );
						model = new THREE.PointLight( color, intensity );
						break;

				}

				if ( lightAttribute.CastShadows !== undefined && lightAttribute.CastShadows.value === 1 ) {

					model.castShadow = true;

				}

			}

			return model;

		},

		createMesh: function ( relationships, geometryMap, materialMap ) {

			var model;
			var geometry = null;
			var material = null;
			var materials = [];

			// get geometry and materials(s) from connections
			relationships.children.forEach( function ( child ) {

				if ( geometryMap.has( child.ID ) ) {

					geometry = geometryMap.get( child.ID );

				}

				if ( materialMap.has( child.ID ) ) {

					materials.push( materialMap.get( child.ID ) );

				}

			} );

			if ( materials.length > 1 ) {

				material = materials;

			} else if ( materials.length > 0 ) {

				material = materials[ 0 ];

			} else {

				material = new THREE.MeshPhongMaterial( { color: 0xcccccc } );
				materials.push( material );

			}

			if ( 'color' in geometry.attributes ) {

				materials.forEach( function ( material ) {

					material.vertexColors = THREE.VertexColors;

				} );

			}

			if ( geometry.FBX_Deformer ) {

				materials.forEach( function ( material ) {

					material.skinning = true;

				} );

				model = new THREE.SkinnedMesh( geometry, material );
				model.normalizeSkinWeights();

			} else {

				model = new THREE.Mesh( geometry, material );

			}

			return model;

		},

		createCurve: function ( relationships, geometryMap ) {

			var geometry = relationships.children.reduce( function ( geo, child ) {

				if ( geometryMap.has( child.ID ) ) geo = geometryMap.get( child.ID );

				return geo;

			}, null );

			// FBX does not list materials for Nurbs lines, so we'll just put our own in here.
			var material = new THREE.LineBasicMaterial( { color: 0x3300ff, linewidth: 1 } );
			return new THREE.Line( geometry, material );

		},

		// parse the model node for transform data
		getTransformData: function ( model, modelNode ) {

			var transformData = {};

			if ( 'InheritType' in modelNode ) transformData.inheritType = parseInt( modelNode.InheritType.value );

			if ( 'RotationOrder' in modelNode ) transformData.eulerOrder = getEulerOrder( modelNode.RotationOrder.value );
			else transformData.eulerOrder = 'ZYX';

			if ( 'Lcl_Translation' in modelNode ) transformData.translation = modelNode.Lcl_Translation.value;

			if ( 'PreRotation' in modelNode ) transformData.preRotation = modelNode.PreRotation.value;
			if ( 'Lcl_Rotation' in modelNode ) transformData.rotation = modelNode.Lcl_Rotation.value;
			if ( 'PostRotation' in modelNode ) transformData.postRotation = modelNode.PostRotation.value;

			if ( 'Lcl_Scaling' in modelNode ) transformData.scale = modelNode.Lcl_Scaling.value;

			if ( 'ScalingOffset' in modelNode ) transformData.scalingOffset = modelNode.ScalingOffset.value;
			if ( 'ScalingPivot' in modelNode ) transformData.scalingPivot = modelNode.ScalingPivot.value;

			if ( 'RotationOffset' in modelNode ) transformData.rotationOffset = modelNode.RotationOffset.value;
			if ( 'RotationPivot' in modelNode ) transformData.rotationPivot = modelNode.RotationPivot.value;

			model.userData.transformData = transformData;

		},

		setLookAtProperties: function ( model, modelNode ) {

			if ( 'LookAtProperty' in modelNode ) {

				var children = connections.get( model.ID ).children;

				children.forEach( function ( child ) {

					if ( child.relationship === 'LookAtProperty' ) {

						var lookAtTarget = fbxTree.Objects.Model[ child.ID ];

						if ( 'Lcl_Translation' in lookAtTarget ) {

							var pos = lookAtTarget.Lcl_Translation.value;

							// DirectionalLight, SpotLight
							if ( model.target !== undefined ) {

								model.target.position.fromArray( pos );
								sceneGraph.add( model.target );

							} else { // Cameras and other Object3Ds

								model.lookAt( new THREE.Vector3().fromArray( pos ) );

							}

						}

					}

				} );

			}

		},

		bindSkeleton: function ( skeletons, geometryMap, modelMap ) {

			var bindMatrices = this.parsePoseNodes();

			for ( var ID in skeletons ) {

				var skeleton = skeletons[ ID ];

				var parents = connections.get( parseInt( skeleton.ID ) ).parents;

				parents.forEach( function ( parent ) {

					if ( geometryMap.has( parent.ID ) ) {

						var geoID = parent.ID;
						var geoRelationships = connections.get( geoID );

						geoRelationships.parents.forEach( function ( geoConnParent ) {

							if ( modelMap.has( geoConnParent.ID ) ) {

								var model = modelMap.get( geoConnParent.ID );

								model.bind( new THREE.Skeleton( skeleton.bones ), bindMatrices[ geoConnParent.ID ] );

							}

						} );

					}

				} );

			}

		},

		parsePoseNodes: function () {

			var bindMatrices = {};

			if ( 'Pose' in fbxTree.Objects ) {

				var BindPoseNode = fbxTree.Objects.Pose;

				for ( var nodeID in BindPoseNode ) {

					if ( BindPoseNode[ nodeID ].attrType === 'BindPose' ) {

						var poseNodes = BindPoseNode[ nodeID ].PoseNode;

						if ( Array.isArray( poseNodes ) ) {

							poseNodes.forEach( function ( poseNode ) {

								bindMatrices[ poseNode.Node ] = new THREE.Matrix4().fromArray( poseNode.Matrix.a );

							} );

						} else {

							bindMatrices[ poseNodes.Node ] = new THREE.Matrix4().fromArray( poseNodes.Matrix.a );

						}

					}

				}

			}

			return bindMatrices;

		},

		// Parse ambient color in FBXTree.GlobalSettings - if it's not set to black (default), create an ambient light
		createAmbientLight: function () {

			if ( 'GlobalSettings' in fbxTree && 'AmbientColor' in fbxTree.GlobalSettings ) {

				var ambientColor = fbxTree.GlobalSettings.AmbientColor.value;
				var r = ambientColor[ 0 ];
				var g = ambientColor[ 1 ];
				var b = ambientColor[ 2 ];

				if ( r !== 0 || g !== 0 || b !== 0 ) {

					var color = new THREE.Color( r, g, b );
					sceneGraph.add( new THREE.AmbientLight( color, 1 ) );

				}

			}

		},

		setupMorphMaterials: function () {

			var self = this;
			sceneGraph.traverse( function ( child ) {

				if ( child.isMesh ) {

					if ( child.geometry.morphAttributes.position && child.geometry.morphAttributes.position.length ) {

						if ( Array.isArray( child.material ) ) {

							child.material.forEach( function ( material, i ) {

								self.setupMorphMaterial( child, material, i );

							} );

						} else {

							self.setupMorphMaterial( child, child.material );

						}

					}

				}

			} );

		},

		setupMorphMaterial: function ( child, material, index ) {

			var uuid = child.uuid;
			var matUuid = material.uuid;

			// if a geometry has morph targets, it cannot share the material with other geometries
			var sharedMat = false;

			sceneGraph.traverse( function ( node ) {

				if ( node.isMesh ) {

					if ( Array.isArray( node.material ) ) {

						node.material.forEach( function ( mat ) {

							if ( mat.uuid === matUuid && node.uuid !== uuid ) sharedMat = true;

						} );

					} else if ( node.material.uuid === matUuid && node.uuid !== uuid ) sharedMat = true;

				}

			} );

			if ( sharedMat === true ) {

				var clonedMat = material.clone();
				clonedMat.morphTargets = true;

				if ( index === undefined ) child.material = clonedMat;
				else child.material[ index ] = clonedMat;

			} else material.morphTargets = true;

		}

	};

	// parse Geometry data from FBXTree and return map of BufferGeometries
	function GeometryParser() {}

	GeometryParser.prototype = {

		constructor: GeometryParser,

		// Parse nodes in FBXTree.Objects.Geometry
		parse: function ( deformers ) {

			var geometryMap = new Map();

			if ( 'Geometry' in fbxTree.Objects ) {

				var geoNodes = fbxTree.Objects.Geometry;

				for ( var nodeID in geoNodes ) {

					var relationships = connections.get( parseInt( nodeID ) );
					var geo = this.parseGeometry( relationships, geoNodes[ nodeID ], deformers );

					geometryMap.set( parseInt( nodeID ), geo );

				}

			}

			return geometryMap;

		},

		// Parse single node in FBXTree.Objects.Geometry
		parseGeometry: function ( relationships, geoNode, deformers ) {

			switch ( geoNode.attrType ) {

				case 'Mesh':
					return this.parseMeshGeometry( relationships, geoNode, deformers );
					break;

				case 'NurbsCurve':
					return this.parseNurbsGeometry( geoNode );
					break;

			}

		},

		// Parse single node mesh geometry in FBXTree.Objects.Geometry
		parseMeshGeometry: function ( relationships, geoNode, deformers ) {

			var skeletons = deformers.skeletons;
			var morphTargets = deformers.morphTargets;

			var modelNodes = relationships.parents.map( function ( parent ) {

				return fbxTree.Objects.Model[ parent.ID ];

			} );

			// don't create geometry if it is not associated with any models
			if ( modelNodes.length === 0 ) return;

			var skeleton = relationships.children.reduce( function ( skeleton, child ) {

				if ( skeletons[ child.ID ] !== undefined ) skeleton = skeletons[ child.ID ];

				return skeleton;

			}, null );

			var morphTarget = relationships.children.reduce( function ( morphTarget, child ) {

				if ( morphTargets[ child.ID ] !== undefined ) morphTarget = morphTargets[ child.ID ];

				return morphTarget;

			}, null );

			// Assume one model and get the preRotation from that
			// if there is more than one model associated with the geometry this may cause problems
			var modelNode = modelNodes[ 0 ];

			var transformData = {};

			if ( 'RotationOrder' in modelNode ) transformData.eulerOrder = getEulerOrder( modelNode.RotationOrder.value );
			if ( 'InheritType' in modelNode ) transformData.inheritType = parseInt( modelNode.InheritType.value );

			if ( 'GeometricTranslation' in modelNode ) transformData.translation = modelNode.GeometricTranslation.value;
			if ( 'GeometricRotation' in modelNode ) transformData.rotation = modelNode.GeometricRotation.value;
			if ( 'GeometricScaling' in modelNode ) transformData.scale = modelNode.GeometricScaling.value;

			var transform = generateTransform( transformData );

			return this.genGeometry( geoNode, skeleton, morphTarget, transform );

		},

		// Generate a THREE.BufferGeometry from a node in FBXTree.Objects.Geometry
		genGeometry: function ( geoNode, skeleton, morphTarget, preTransform ) {

			var geo = new THREE.BufferGeometry();
			if ( geoNode.attrName ) geo.name = geoNode.attrName;

			var geoInfo = this.parseGeoNode( geoNode, skeleton );
			var buffers = this.genBuffers( geoInfo );

			var positionAttribute = new THREE.Float32BufferAttribute( buffers.vertex, 3 );

			preTransform.applyToBufferAttribute( positionAttribute );

			geo.addAttribute( 'position', positionAttribute );

			if ( buffers.colors.length > 0 ) {

				geo.addAttribute( 'color', new THREE.Float32BufferAttribute( buffers.colors, 3 ) );

			}

			if ( skeleton ) {

				geo.addAttribute( 'skinIndex', new THREE.Uint16BufferAttribute( buffers.weightsIndices, 4 ) );

				geo.addAttribute( 'skinWeight', new THREE.Float32BufferAttribute( buffers.vertexWeights, 4 ) );

				// used later to bind the skeleton to the model
				geo.FBX_Deformer = skeleton;

			}

			if ( buffers.normal.length > 0 ) {

				var normalAttribute = new THREE.Float32BufferAttribute( buffers.normal, 3 );

				var normalMatrix = new THREE.Matrix3().getNormalMatrix( preTransform );
				normalMatrix.applyToBufferAttribute( normalAttribute );

				geo.addAttribute( 'normal', normalAttribute );

			}

			buffers.uvs.forEach( function ( uvBuffer, i ) {

				// subsequent uv buffers are called 'uv1', 'uv2', ...
				var name = 'uv' + ( i + 1 ).toString();

				// the first uv buffer is just called 'uv'
				if ( i === 0 ) {

					name = 'uv';

				}

				geo.addAttribute( name, new THREE.Float32BufferAttribute( buffers.uvs[ i ], 2 ) );

			} );

			if ( geoInfo.material && geoInfo.material.mappingType !== 'AllSame' ) {

				// Convert the material indices of each vertex into rendering groups on the geometry.
				var prevMaterialIndex = buffers.materialIndex[ 0 ];
				var startIndex = 0;

				buffers.materialIndex.forEach( function ( currentIndex, i ) {

					if ( currentIndex !== prevMaterialIndex ) {

						geo.addGroup( startIndex, i - startIndex, prevMaterialIndex );

						prevMaterialIndex = currentIndex;
						startIndex = i;

					}

				} );

				// the loop above doesn't add the last group, do that here.
				if ( geo.groups.length > 0 ) {

					var lastGroup = geo.groups[ geo.groups.length - 1 ];
					var lastIndex = lastGroup.start + lastGroup.count;

					if ( lastIndex !== buffers.materialIndex.length ) {

						geo.addGroup( lastIndex, buffers.materialIndex.length - lastIndex, prevMaterialIndex );

					}

				}

				// case where there are multiple materials but the whole geometry is only
				// using one of them
				if ( geo.groups.length === 0 ) {

					geo.addGroup( 0, buffers.materialIndex.length, buffers.materialIndex[ 0 ] );

				}

			}

			this.addMorphTargets( geo, geoNode, morphTarget, preTransform );

			return geo;

		},

		parseGeoNode: function ( geoNode, skeleton ) {

			var geoInfo = {};

			geoInfo.vertexPositions = ( geoNode.Vertices !== undefined ) ? geoNode.Vertices.a : [];
			geoInfo.vertexIndices = ( geoNode.PolygonVertexIndex !== undefined ) ? geoNode.PolygonVertexIndex.a : [];

			if ( geoNode.LayerElementColor ) {

				geoInfo.color = this.parseVertexColors( geoNode.LayerElementColor[ 0 ] );

			}

			if ( geoNode.LayerElementMaterial ) {

				geoInfo.material = this.parseMaterialIndices( geoNode.LayerElementMaterial[ 0 ] );

			}

			if ( geoNode.LayerElementNormal ) {

				geoInfo.normal = this.parseNormals( geoNode.LayerElementNormal[ 0 ] );

			}

			if ( geoNode.LayerElementUV ) {

				geoInfo.uv = [];

				var i = 0;
				while ( geoNode.LayerElementUV[ i ] ) {

					geoInfo.uv.push( this.parseUVs( geoNode.LayerElementUV[ i ] ) );
					i ++;

				}

			}

			geoInfo.weightTable = {};

			if ( skeleton !== null ) {

				geoInfo.skeleton = skeleton;

				skeleton.rawBones.forEach( function ( rawBone, i ) {

					// loop over the bone's vertex indices and weights
					rawBone.indices.forEach( function ( index, j ) {

						if ( geoInfo.weightTable[ index ] === undefined ) geoInfo.weightTable[ index ] = [];

						geoInfo.weightTable[ index ].push( {

							id: i,
							weight: rawBone.weights[ j ],

						} );

					} );

				} );

			}

			return geoInfo;

		},

		genBuffers: function ( geoInfo ) {

			var buffers = {
				vertex: [],
				normal: [],
				colors: [],
				uvs: [],
				materialIndex: [],
				vertexWeights: [],
				weightsIndices: [],
			};

			var polygonIndex = 0;
			var faceLength = 0;
			var displayedWeightsWarning = false;

			// these will hold data for a single face
			var facePositionIndexes = [];
			var faceNormals = [];
			var faceColors = [];
			var faceUVs = [];
			var faceWeights = [];
			var faceWeightIndices = [];

			var self = this;
			geoInfo.vertexIndices.forEach( function ( vertexIndex, polygonVertexIndex ) {

				var endOfFace = false;

				// Face index and vertex index arrays are combined in a single array
				// A cube with quad faces looks like this:
				// PolygonVertexIndex: *24 {
				//  a: 0, 1, 3, -3, 2, 3, 5, -5, 4, 5, 7, -7, 6, 7, 1, -1, 1, 7, 5, -4, 6, 0, 2, -5
				//  }
				// Negative numbers mark the end of a face - first face here is 0, 1, 3, -3
				// to find index of last vertex bit shift the index: ^ - 1
				if ( vertexIndex < 0 ) {

					vertexIndex = vertexIndex ^ - 1; // equivalent to ( x * -1 ) - 1
					endOfFace = true;

				}

				var weightIndices = [];
				var weights = [];

				facePositionIndexes.push( vertexIndex * 3, vertexIndex * 3 + 1, vertexIndex * 3 + 2 );

				if ( geoInfo.color ) {

					var data = getData( polygonVertexIndex, polygonIndex, vertexIndex, geoInfo.color );

					faceColors.push( data[ 0 ], data[ 1 ], data[ 2 ] );

				}

				if ( geoInfo.skeleton ) {

					if ( geoInfo.weightTable[ vertexIndex ] !== undefined ) {

						geoInfo.weightTable[ vertexIndex ].forEach( function ( wt ) {

							weights.push( wt.weight );
							weightIndices.push( wt.id );

						} );


					}

					if ( weights.length > 4 ) {

						if ( ! displayedWeightsWarning ) {

							console.warn( 'THREE.FBXLoader: Vertex has more than 4 skinning weights assigned to vertex. Deleting additional weights.' );
							displayedWeightsWarning = true;

						}

						var wIndex = [ 0, 0, 0, 0 ];
						var Weight = [ 0, 0, 0, 0 ];

						weights.forEach( function ( weight, weightIndex ) {

							var currentWeight = weight;
							var currentIndex = weightIndices[ weightIndex ];

							Weight.forEach( function ( comparedWeight, comparedWeightIndex, comparedWeightArray ) {

								if ( currentWeight > comparedWeight ) {

									comparedWeightArray[ comparedWeightIndex ] = currentWeight;
									currentWeight = comparedWeight;

									var tmp = wIndex[ comparedWeightIndex ];
									wIndex[ comparedWeightIndex ] = currentIndex;
									currentIndex = tmp;

								}

							} );

						} );

						weightIndices = wIndex;
						weights = Weight;

					}

					// if the weight array is shorter than 4 pad with 0s
					while ( weights.length < 4 ) {

						weights.push( 0 );
						weightIndices.push( 0 );

					}

					for ( var i = 0; i < 4; ++ i ) {

						faceWeights.push( weights[ i ] );
						faceWeightIndices.push( weightIndices[ i ] );

					}

				}

				if ( geoInfo.normal ) {

					var data = getData( polygonVertexIndex, polygonIndex, vertexIndex, geoInfo.normal );

					faceNormals.push( data[ 0 ], data[ 1 ], data[ 2 ] );

				}

				if ( geoInfo.material && geoInfo.material.mappingType !== 'AllSame' ) {

					var materialIndex = getData( polygonVertexIndex, polygonIndex, vertexIndex, geoInfo.material )[ 0 ];

				}

				if ( geoInfo.uv ) {

					geoInfo.uv.forEach( function ( uv, i ) {

						var data = getData( polygonVertexIndex, polygonIndex, vertexIndex, uv );

						if ( faceUVs[ i ] === undefined ) {

							faceUVs[ i ] = [];

						}

						faceUVs[ i ].push( data[ 0 ] );
						faceUVs[ i ].push( data[ 1 ] );

					} );

				}

				faceLength ++;

				if ( endOfFace ) {

					self.genFace( buffers, geoInfo, facePositionIndexes, materialIndex, faceNormals, faceColors, faceUVs, faceWeights, faceWeightIndices, faceLength );

					polygonIndex ++;
					faceLength = 0;

					// reset arrays for the next face
					facePositionIndexes = [];
					faceNormals = [];
					faceColors = [];
					faceUVs = [];
					faceWeights = [];
					faceWeightIndices = [];

				}

			} );

			return buffers;

		},

		// Generate data for a single face in a geometry. If the face is a quad then split it into 2 tris
		genFace: function ( buffers, geoInfo, facePositionIndexes, materialIndex, faceNormals, faceColors, faceUVs, faceWeights, faceWeightIndices, faceLength ) {

			for ( var i = 2; i < faceLength; i ++ ) {

				buffers.vertex.push( geoInfo.vertexPositions[ facePositionIndexes[ 0 ] ] );
				buffers.vertex.push( geoInfo.vertexPositions[ facePositionIndexes[ 1 ] ] );
				buffers.vertex.push( geoInfo.vertexPositions[ facePositionIndexes[ 2 ] ] );

				buffers.vertex.push( geoInfo.vertexPositions[ facePositionIndexes[ ( i - 1 ) * 3 ] ] );
				buffers.vertex.push( geoInfo.vertexPositions[ facePositionIndexes[ ( i - 1 ) * 3 + 1 ] ] );
				buffers.vertex.push( geoInfo.vertexPositions[ facePositionIndexes[ ( i - 1 ) * 3 + 2 ] ] );

				buffers.vertex.push( geoInfo.vertexPositions[ facePositionIndexes[ i * 3 ] ] );
				buffers.vertex.push( geoInfo.vertexPositions[ facePositionIndexes[ i * 3 + 1 ] ] );
				buffers.vertex.push( geoInfo.vertexPositions[ facePositionIndexes[ i * 3 + 2 ] ] );

				if ( geoInfo.skeleton ) {

					buffers.vertexWeights.push( faceWeights[ 0 ] );
					buffers.vertexWeights.push( faceWeights[ 1 ] );
					buffers.vertexWeights.push( faceWeights[ 2 ] );
					buffers.vertexWeights.push( faceWeights[ 3 ] );

					buffers.vertexWeights.push( faceWeights[ ( i - 1 ) * 4 ] );
					buffers.vertexWeights.push( faceWeights[ ( i - 1 ) * 4 + 1 ] );
					buffers.vertexWeights.push( faceWeights[ ( i - 1 ) * 4 + 2 ] );
					buffers.vertexWeights.push( faceWeights[ ( i - 1 ) * 4 + 3 ] );

					buffers.vertexWeights.push( faceWeights[ i * 4 ] );
					buffers.vertexWeights.push( faceWeights[ i * 4 + 1 ] );
					buffers.vertexWeights.push( faceWeights[ i * 4 + 2 ] );
					buffers.vertexWeights.push( faceWeights[ i * 4 + 3 ] );

					buffers.weightsIndices.push( faceWeightIndices[ 0 ] );
					buffers.weightsIndices.push( faceWeightIndices[ 1 ] );
					buffers.weightsIndices.push( faceWeightIndices[ 2 ] );
					buffers.weightsIndices.push( faceWeightIndices[ 3 ] );

					buffers.weightsIndices.push( faceWeightIndices[ ( i - 1 ) * 4 ] );
					buffers.weightsIndices.push( faceWeightIndices[ ( i - 1 ) * 4 + 1 ] );
					buffers.weightsIndices.push( faceWeightIndices[ ( i - 1 ) * 4 + 2 ] );
					buffers.weightsIndices.push( faceWeightIndices[ ( i - 1 ) * 4 + 3 ] );

					buffers.weightsIndices.push( faceWeightIndices[ i * 4 ] );
					buffers.weightsIndices.push( faceWeightIndices[ i * 4 + 1 ] );
					buffers.weightsIndices.push( faceWeightIndices[ i * 4 + 2 ] );
					buffers.weightsIndices.push( faceWeightIndices[ i * 4 + 3 ] );

				}

				if ( geoInfo.color ) {

					buffers.colors.push( faceColors[ 0 ] );
					buffers.colors.push( faceColors[ 1 ] );
					buffers.colors.push( faceColors[ 2 ] );

					buffers.colors.push( faceColors[ ( i - 1 ) * 3 ] );
					buffers.colors.push( faceColors[ ( i - 1 ) * 3 + 1 ] );
					buffers.colors.push( faceColors[ ( i - 1 ) * 3 + 2 ] );

					buffers.colors.push( faceColors[ i * 3 ] );
					buffers.colors.push( faceColors[ i * 3 + 1 ] );
					buffers.colors.push( faceColors[ i * 3 + 2 ] );

				}

				if ( geoInfo.material && geoInfo.material.mappingType !== 'AllSame' ) {

					buffers.materialIndex.push( materialIndex );
					buffers.materialIndex.push( materialIndex );
					buffers.materialIndex.push( materialIndex );

				}

				if ( geoInfo.normal ) {

					buffers.normal.push( faceNormals[ 0 ] );
					buffers.normal.push( faceNormals[ 1 ] );
					buffers.normal.push( faceNormals[ 2 ] );

					buffers.normal.push( faceNormals[ ( i - 1 ) * 3 ] );
					buffers.normal.push( faceNormals[ ( i - 1 ) * 3 + 1 ] );
					buffers.normal.push( faceNormals[ ( i - 1 ) * 3 + 2 ] );

					buffers.normal.push( faceNormals[ i * 3 ] );
					buffers.normal.push( faceNormals[ i * 3 + 1 ] );
					buffers.normal.push( faceNormals[ i * 3 + 2 ] );

				}

				if ( geoInfo.uv ) {

					geoInfo.uv.forEach( function ( uv, j ) {

						if ( buffers.uvs[ j ] === undefined ) buffers.uvs[ j ] = [];

						buffers.uvs[ j ].push( faceUVs[ j ][ 0 ] );
						buffers.uvs[ j ].push( faceUVs[ j ][ 1 ] );

						buffers.uvs[ j ].push( faceUVs[ j ][ ( i - 1 ) * 2 ] );
						buffers.uvs[ j ].push( faceUVs[ j ][ ( i - 1 ) * 2 + 1 ] );

						buffers.uvs[ j ].push( faceUVs[ j ][ i * 2 ] );
						buffers.uvs[ j ].push( faceUVs[ j ][ i * 2 + 1 ] );

					} );

				}

			}

		},

		addMorphTargets: function ( parentGeo, parentGeoNode, morphTarget, preTransform ) {

			if ( morphTarget === null ) return;

			parentGeo.morphAttributes.position = [];
			// parentGeo.morphAttributes.normal = []; // not implemented

			var self = this;
			morphTarget.rawTargets.forEach( function ( rawTarget ) {

				var morphGeoNode = fbxTree.Objects.Geometry[ rawTarget.geoID ];

				if ( morphGeoNode !== undefined ) {

					self.genMorphGeometry( parentGeo, parentGeoNode, morphGeoNode, preTransform, rawTarget.name );

				}

			} );

		},

		// a morph geometry node is similar to a standard  node, and the node is also contained
		// in FBXTree.Objects.Geometry, however it can only have attributes for position, normal
		// and a special attribute Index defining which vertices of the original geometry are affected
		// Normal and position attributes only have data for the vertices that are affected by the morph
		genMorphGeometry: function ( parentGeo, parentGeoNode, morphGeoNode, preTransform, name ) {

			var morphGeo = new THREE.BufferGeometry();
			if ( morphGeoNode.attrName ) morphGeo.name = morphGeoNode.attrName;

			var vertexIndices = ( parentGeoNode.PolygonVertexIndex !== undefined ) ? parentGeoNode.PolygonVertexIndex.a : [];

			// make a copy of the parent's vertex positions
			var vertexPositions = ( parentGeoNode.Vertices !== undefined ) ? parentGeoNode.Vertices.a.slice() : [];

			var morphPositions = ( morphGeoNode.Vertices !== undefined ) ? morphGeoNode.Vertices.a : [];
			var indices = ( morphGeoNode.Indexes !== undefined ) ? morphGeoNode.Indexes.a : [];

			for ( var i = 0; i < indices.length; i ++ ) {

				var morphIndex = indices[ i ] * 3;

				// FBX format uses blend shapes rather than morph targets. This can be converted
				// by additively combining the blend shape positions with the original geometry's positions
				vertexPositions[ morphIndex ] += morphPositions[ i * 3 ];
				vertexPositions[ morphIndex + 1 ] += morphPositions[ i * 3 + 1 ];
				vertexPositions[ morphIndex + 2 ] += morphPositions[ i * 3 + 2 ];

			}

			// TODO: add morph normal support
			var morphGeoInfo = {
				vertexIndices: vertexIndices,
				vertexPositions: vertexPositions,
			};

			var morphBuffers = this.genBuffers( morphGeoInfo );

			var positionAttribute = new THREE.Float32BufferAttribute( morphBuffers.vertex, 3 );
			positionAttribute.name = name || morphGeoNode.attrName;

			preTransform.applyToBufferAttribute( positionAttribute );

			parentGeo.morphAttributes.position.push( positionAttribute );

		},

		// Parse normal from FBXTree.Objects.Geometry.LayerElementNormal if it exists
		parseNormals: function ( NormalNode ) {

			var mappingType = NormalNode.MappingInformationType;
			var referenceType = NormalNode.ReferenceInformationType;
			var buffer = NormalNode.Normals.a;
			var indexBuffer = [];
			if ( referenceType === 'IndexToDirect' ) {

				if ( 'NormalIndex' in NormalNode ) {

					indexBuffer = NormalNode.NormalIndex.a;

				} else if ( 'NormalsIndex' in NormalNode ) {

					indexBuffer = NormalNode.NormalsIndex.a;

				}

			}

			return {
				dataSize: 3,
				buffer: buffer,
				indices: indexBuffer,
				mappingType: mappingType,
				referenceType: referenceType
			};

		},

		// Parse UVs from FBXTree.Objects.Geometry.LayerElementUV if it exists
		parseUVs: function ( UVNode ) {

			var mappingType = UVNode.MappingInformationType;
			var referenceType = UVNode.ReferenceInformationType;
			var buffer = UVNode.UV.a;
			var indexBuffer = [];
			if ( referenceType === 'IndexToDirect' ) {

				indexBuffer = UVNode.UVIndex.a;

			}

			return {
				dataSize: 2,
				buffer: buffer,
				indices: indexBuffer,
				mappingType: mappingType,
				referenceType: referenceType
			};

		},

		// Parse Vertex Colors from FBXTree.Objects.Geometry.LayerElementColor if it exists
		parseVertexColors: function ( ColorNode ) {

			var mappingType = ColorNode.MappingInformationType;
			var referenceType = ColorNode.ReferenceInformationType;
			var buffer = ColorNode.Colors.a;
			var indexBuffer = [];
			if ( referenceType === 'IndexToDirect' ) {

				indexBuffer = ColorNode.ColorIndex.a;

			}

			return {
				dataSize: 4,
				buffer: buffer,
				indices: indexBuffer,
				mappingType: mappingType,
				referenceType: referenceType
			};

		},

		// Parse mapping and material data in FBXTree.Objects.Geometry.LayerElementMaterial if it exists
		parseMaterialIndices: function ( MaterialNode ) {

			var mappingType = MaterialNode.MappingInformationType;
			var referenceType = MaterialNode.ReferenceInformationType;

			if ( mappingType === 'NoMappingInformation' ) {

				return {
					dataSize: 1,
					buffer: [ 0 ],
					indices: [ 0 ],
					mappingType: 'AllSame',
					referenceType: referenceType
				};

			}

			var materialIndexBuffer = MaterialNode.Materials.a;

			// Since materials are stored as indices, there's a bit of a mismatch between FBX and what
			// we expect.So we create an intermediate buffer that points to the index in the buffer,
			// for conforming with the other functions we've written for other data.
			var materialIndices = [];

			for ( var i = 0; i < materialIndexBuffer.length; ++ i ) {

				materialIndices.push( i );

			}

			return {
				dataSize: 1,
				buffer: materialIndexBuffer,
				indices: materialIndices,
				mappingType: mappingType,
				referenceType: referenceType
			};

		},

		// Generate a NurbGeometry from a node in FBXTree.Objects.Geometry
		parseNurbsGeometry: function ( geoNode ) {

			if ( THREE.NURBSCurve === undefined ) {

				console.error( 'THREE.FBXLoader: The loader relies on THREE.NURBSCurve for any nurbs present in the model. Nurbs will show up as empty geometry.' );
				return new THREE.BufferGeometry();

			}

			var order = parseInt( geoNode.Order );

			if ( isNaN( order ) ) {

				console.error( 'THREE.FBXLoader: Invalid Order %s given for geometry ID: %s', geoNode.Order, geoNode.id );
				return new THREE.BufferGeometry();

			}

			var degree = order - 1;

			var knots = geoNode.KnotVector.a;
			var controlPoints = [];
			var pointsValues = geoNode.Points.a;

			for ( var i = 0, l = pointsValues.length; i < l; i += 4 ) {

				controlPoints.push( new THREE.Vector4().fromArray( pointsValues, i ) );

			}

			var startKnot, endKnot;

			if ( geoNode.Form === 'Closed' ) {

				controlPoints.push( controlPoints[ 0 ] );

			} else if ( geoNode.Form === 'Periodic' ) {

				startKnot = degree;
				endKnot = knots.length - 1 - startKnot;

				for ( var i = 0; i < degree; ++ i ) {

					controlPoints.push( controlPoints[ i ] );

				}

			}

			var curve = new THREE.NURBSCurve( degree, knots, controlPoints, startKnot, endKnot );
			var vertices = curve.getPoints( controlPoints.length * 7 );

			var positions = new Float32Array( vertices.length * 3 );

			vertices.forEach( function ( vertex, i ) {

				vertex.toArray( positions, i * 3 );

			} );

			var geometry = new THREE.BufferGeometry();
			geometry.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ) );

			return geometry;

		},

	};

	// parse animation data from FBXTree
	function AnimationParser() {}

	AnimationParser.prototype = {

		constructor: AnimationParser,

		// take raw animation clips and turn them into three.js animation clips
		parse: function () {

			var animationClips = [];

			var rawClips = this.parseClips();

			if ( rawClips !== undefined ) {

				for ( var key in rawClips ) {

					var rawClip = rawClips[ key ];

					var clip = this.addClip( rawClip );

					animationClips.push( clip );

				}

			}

			return animationClips;

		},

		parseClips: function () {

			// since the actual transformation data is stored in FBXTree.Objects.AnimationCurve,
			// if this is undefined we can safely assume there are no animations
			if ( fbxTree.Objects.AnimationCurve === undefined ) return undefined;

			var curveNodesMap = this.parseAnimationCurveNodes();

			this.parseAnimationCurves( curveNodesMap );

			var layersMap = this.parseAnimationLayers( curveNodesMap );
			var rawClips = this.parseAnimStacks( layersMap );

			return rawClips;

		},

		// parse nodes in FBXTree.Objects.AnimationCurveNode
		// each AnimationCurveNode holds data for an animation transform for a model (e.g. left arm rotation )
		// and is referenced by an AnimationLayer
		parseAnimationCurveNodes: function () {

			var rawCurveNodes = fbxTree.Objects.AnimationCurveNode;

			var curveNodesMap = new Map();

			for ( var nodeID in rawCurveNodes ) {

				var rawCurveNode = rawCurveNodes[ nodeID ];

				if ( rawCurveNode.attrName.match( /S|R|T|DeformPercent/ ) !== null ) {

					var curveNode = {

						id: rawCurveNode.id,
						attr: rawCurveNode.attrName,
						curves: {},

					};

					curveNodesMap.set( curveNode.id, curveNode );

				}

			}

			return curveNodesMap;

		},

		// parse nodes in FBXTree.Objects.AnimationCurve and connect them up to
		// previously parsed AnimationCurveNodes. Each AnimationCurve holds data for a single animated
		// axis ( e.g. times and values of x rotation)
		parseAnimationCurves: function ( curveNodesMap ) {

			var rawCurves = fbxTree.Objects.AnimationCurve;

			// TODO: Many values are identical up to roundoff error, but won't be optimised
			// e.g. position times: [0, 0.4, 0. 8]
			// position values: [7.23538335023477e-7, 93.67518615722656, -0.9982695579528809, 7.23538335023477e-7, 93.67518615722656, -0.9982695579528809, 7.235384487103147e-7, 93.67520904541016, -0.9982695579528809]
			// clearly, this should be optimised to
			// times: [0], positions [7.23538335023477e-7, 93.67518615722656, -0.9982695579528809]
			// this shows up in nearly every FBX file, and generally time array is length > 100

			for ( var nodeID in rawCurves ) {

				var animationCurve = {

					id: rawCurves[ nodeID ].id,
					times: rawCurves[ nodeID ].KeyTime.a.map( convertFBXTimeToSeconds ),
					values: rawCurves[ nodeID ].KeyValueFloat.a,

				};

				var relationships = connections.get( animationCurve.id );

				if ( relationships !== undefined ) {

					var animationCurveID = relationships.parents[ 0 ].ID;
					var animationCurveRelationship = relationships.parents[ 0 ].relationship;

					if ( animationCurveRelationship.match( /X/ ) ) {

						curveNodesMap.get( animationCurveID ).curves[ 'x' ] = animationCurve;

					} else if ( animationCurveRelationship.match( /Y/ ) ) {

						curveNodesMap.get( animationCurveID ).curves[ 'y' ] = animationCurve;

					} else if ( animationCurveRelationship.match( /Z/ ) ) {

						curveNodesMap.get( animationCurveID ).curves[ 'z' ] = animationCurve;

					} else if ( animationCurveRelationship.match( /d|DeformPercent/ ) && curveNodesMap.has( animationCurveID ) ) {

						curveNodesMap.get( animationCurveID ).curves[ 'morph' ] = animationCurve;

					}

				}

			}

		},

		// parse nodes in FBXTree.Objects.AnimationLayer. Each layers holds references
		// to various AnimationCurveNodes and is referenced by an AnimationStack node
		// note: theoretically a stack can have multiple layers, however in practice there always seems to be one per stack
		parseAnimationLayers: function ( curveNodesMap ) {

			var rawLayers = fbxTree.Objects.AnimationLayer;

			var layersMap = new Map();

			for ( var nodeID in rawLayers ) {

				var layerCurveNodes = [];

				var connection = connections.get( parseInt( nodeID ) );

				if ( connection !== undefined ) {

					// all the animationCurveNodes used in the layer
					var children = connection.children;

					children.forEach( function ( child, i ) {

						if ( curveNodesMap.has( child.ID ) ) {

							var curveNode = curveNodesMap.get( child.ID );

							// check that the curves are defined for at least one axis, otherwise ignore the curveNode
							if ( curveNode.curves.x !== undefined || curveNode.curves.y !== undefined || curveNode.curves.z !== undefined ) {

								if ( layerCurveNodes[ i ] === undefined ) {

									var modelID = connections.get( child.ID ).parents.filter( function ( parent ) {

										return parent.relationship !== undefined;

									} )[ 0 ].ID;

									if ( modelID !== undefined ) {

										var rawModel = fbxTree.Objects.Model[ modelID.toString() ];

										var node = {

											modelName: THREE.PropertyBinding.sanitizeNodeName( rawModel.attrName ),
											ID: rawModel.id,
											initialPosition: [ 0, 0, 0 ],
											initialRotation: [ 0, 0, 0 ],
											initialScale: [ 1, 1, 1 ],

										};

										sceneGraph.traverse( function ( child ) {

											if ( child.ID === rawModel.id ) {

												node.transform = child.matrix;

												if ( child.userData.transformData ) node.eulerOrder = child.userData.transformData.eulerOrder;

											}

										} );

										if ( ! node.transform ) node.transform = new THREE.Matrix4();

										// if the animated model is pre rotated, we'll have to apply the pre rotations to every
										// animation value as well
										if ( 'PreRotation' in rawModel ) node.preRotation = rawModel.PreRotation.value;
										if ( 'PostRotation' in rawModel ) node.postRotation = rawModel.PostRotation.value;

										layerCurveNodes[ i ] = node;

									}

								}

								if ( layerCurveNodes[ i ] ) layerCurveNodes[ i ][ curveNode.attr ] = curveNode;

							} else if ( curveNode.curves.morph !== undefined ) {

								if ( layerCurveNodes[ i ] === undefined ) {

									var deformerID = connections.get( child.ID ).parents.filter( function ( parent ) {

										return parent.relationship !== undefined;

									} )[ 0 ].ID;

									var morpherID = connections.get( deformerID ).parents[ 0 ].ID;
									var geoID = connections.get( morpherID ).parents[ 0 ].ID;

									// assuming geometry is not used in more than one model
									var modelID = connections.get( geoID ).parents[ 0 ].ID;

									var rawModel = fbxTree.Objects.Model[ modelID ];

									var node = {

										modelName: THREE.PropertyBinding.sanitizeNodeName( rawModel.attrName ),
										morphName: fbxTree.Objects.Deformer[ deformerID ].attrName,

									};

									layerCurveNodes[ i ] = node;

								}

								layerCurveNodes[ i ][ curveNode.attr ] = curveNode;

							}

						}

					} );

					layersMap.set( parseInt( nodeID ), layerCurveNodes );

				}

			}

			return layersMap;

		},

		// parse nodes in FBXTree.Objects.AnimationStack. These are the top level node in the animation
		// hierarchy. Each Stack node will be used to create a THREE.AnimationClip
		parseAnimStacks: function ( layersMap ) {

			var rawStacks = fbxTree.Objects.AnimationStack;

			// connect the stacks (clips) up to the layers
			var rawClips = {};

			for ( var nodeID in rawStacks ) {

				var children = connections.get( parseInt( nodeID ) ).children;

				if ( children.length > 1 ) {

					// it seems like stacks will always be associated with a single layer. But just in case there are files
					// where there are multiple layers per stack, we'll display a warning
					console.warn( 'THREE.FBXLoader: Encountered an animation stack with multiple layers, this is currently not supported. Ignoring subsequent layers.' );

				}

				var layer = layersMap.get( children[ 0 ].ID );

				rawClips[ nodeID ] = {

					name: rawStacks[ nodeID ].attrName,
					layer: layer,

				};

			}

			return rawClips;

		},

		addClip: function ( rawClip ) {

			var tracks = [];

			var self = this;
			rawClip.layer.forEach( function ( rawTracks ) {

				tracks = tracks.concat( self.generateTracks( rawTracks ) );

			} );

			return new THREE.AnimationClip( rawClip.name, - 1, tracks );

		},

		generateTracks: function ( rawTracks ) {

			var tracks = [];

			var initialPosition = new THREE.Vector3();
			var initialRotation = new THREE.Quaternion();
			var initialScale = new THREE.Vector3();

			if ( rawTracks.transform ) rawTracks.transform.decompose( initialPosition, initialRotation, initialScale );

			initialPosition = initialPosition.toArray();
			initialRotation = new THREE.Euler().setFromQuaternion( initialRotation, rawTracks.eulerOrder ).toArray();
			initialScale = initialScale.toArray();

			if ( rawTracks.T !== undefined && Object.keys( rawTracks.T.curves ).length > 0 ) {

				var positionTrack = this.generateVectorTrack( rawTracks.modelName, rawTracks.T.curves, initialPosition, 'position' );
				if ( positionTrack !== undefined ) tracks.push( positionTrack );

			}

			if ( rawTracks.R !== undefined && Object.keys( rawTracks.R.curves ).length > 0 ) {

				var rotationTrack = this.generateRotationTrack( rawTracks.modelName, rawTracks.R.curves, initialRotation, rawTracks.preRotation, rawTracks.postRotation, rawTracks.eulerOrder );
				if ( rotationTrack !== undefined ) tracks.push( rotationTrack );

			}

			if ( rawTracks.S !== undefined && Object.keys( rawTracks.S.curves ).length > 0 ) {

				var scaleTrack = this.generateVectorTrack( rawTracks.modelName, rawTracks.S.curves, initialScale, 'scale' );
				if ( scaleTrack !== undefined ) tracks.push( scaleTrack );

			}

			if ( rawTracks.DeformPercent !== undefined ) {

				var morphTrack = this.generateMorphTrack( rawTracks );
				if ( morphTrack !== undefined ) tracks.push( morphTrack );

			}

			return tracks;

		},

		generateVectorTrack: function ( modelName, curves, initialValue, type ) {

			var times = this.getTimesForAllAxes( curves );
			var values = this.getKeyframeTrackValues( times, curves, initialValue );

			return new THREE.VectorKeyframeTrack( modelName + '.' + type, times, values );

		},

		generateRotationTrack: function ( modelName, curves, initialValue, preRotation, postRotation, eulerOrder ) {

			if ( curves.x !== undefined ) {

				this.interpolateRotations( curves.x );
				curves.x.values = curves.x.values.map( THREE.Math.degToRad );

			}
			if ( curves.y !== undefined ) {

				this.interpolateRotations( curves.y );
				curves.y.values = curves.y.values.map( THREE.Math.degToRad );

			}
			if ( curves.z !== undefined ) {

				this.interpolateRotations( curves.z );
				curves.z.values = curves.z.values.map( THREE.Math.degToRad );

			}

			var times = this.getTimesForAllAxes( curves );
			var values = this.getKeyframeTrackValues( times, curves, initialValue );

			if ( preRotation !== undefined ) {

				preRotation = preRotation.map( THREE.Math.degToRad );
				preRotation.push( eulerOrder );

				preRotation = new THREE.Euler().fromArray( preRotation );
				preRotation = new THREE.Quaternion().setFromEuler( preRotation );

			}

			if ( postRotation !== undefined ) {

				postRotation = postRotation.map( THREE.Math.degToRad );
				postRotation.push( eulerOrder );

				postRotation = new THREE.Euler().fromArray( postRotation );
				postRotation = new THREE.Quaternion().setFromEuler( postRotation ).inverse();

			}

			var quaternion = new THREE.Quaternion();
			var euler = new THREE.Euler();

			var quaternionValues = [];

			for ( var i = 0; i < values.length; i += 3 ) {

				euler.set( values[ i ], values[ i + 1 ], values[ i + 2 ], eulerOrder );

				quaternion.setFromEuler( euler );

				if ( preRotation !== undefined ) quaternion.premultiply( preRotation );
				if ( postRotation !== undefined ) quaternion.multiply( postRotation );

				quaternion.toArray( quaternionValues, ( i / 3 ) * 4 );

			}

			return new THREE.QuaternionKeyframeTrack( modelName + '.quaternion', times, quaternionValues );

		},

		generateMorphTrack: function ( rawTracks ) {

			var curves = rawTracks.DeformPercent.curves.morph;
			var values = curves.values.map( function ( val ) {

				return val / 100;

			} );

			var morphNum = sceneGraph.getObjectByName( rawTracks.modelName ).morphTargetDictionary[ rawTracks.morphName ];

			return new THREE.NumberKeyframeTrack( rawTracks.modelName + '.morphTargetInfluences[' + morphNum + ']', curves.times, values );

		},

		// For all animated objects, times are defined separately for each axis
		// Here we'll combine the times into one sorted array without duplicates
		getTimesForAllAxes: function ( curves ) {

			var times = [];

			// first join together the times for each axis, if defined
			if ( curves.x !== undefined ) times = times.concat( curves.x.times );
			if ( curves.y !== undefined ) times = times.concat( curves.y.times );
			if ( curves.z !== undefined ) times = times.concat( curves.z.times );

			// then sort them and remove duplicates
			times = times.sort( function ( a, b ) {

				return a - b;

			} ).filter( function ( elem, index, array ) {

				return array.indexOf( elem ) == index;

			} );

			return times;

		},

		getKeyframeTrackValues: function ( times, curves, initialValue ) {

			var prevValue = initialValue;

			var values = [];

			var xIndex = - 1;
			var yIndex = - 1;
			var zIndex = - 1;

			times.forEach( function ( time ) {

				if ( curves.x ) xIndex = curves.x.times.indexOf( time );
				if ( curves.y ) yIndex = curves.y.times.indexOf( time );
				if ( curves.z ) zIndex = curves.z.times.indexOf( time );

				// if there is an x value defined for this frame, use that
				if ( xIndex !== - 1 ) {

					var xValue = curves.x.values[ xIndex ];
					values.push( xValue );
					prevValue[ 0 ] = xValue;

				} else {

					// otherwise use the x value from the previous frame
					values.push( prevValue[ 0 ] );

				}

				if ( yIndex !== - 1 ) {

					var yValue = curves.y.values[ yIndex ];
					values.push( yValue );
					prevValue[ 1 ] = yValue;

				} else {

					values.push( prevValue[ 1 ] );

				}

				if ( zIndex !== - 1 ) {

					var zValue = curves.z.values[ zIndex ];
					values.push( zValue );
					prevValue[ 2 ] = zValue;

				} else {

					values.push( prevValue[ 2 ] );

				}

			} );

			return values;

		},

		// Rotations are defined as Euler angles which can have values  of any size
		// These will be converted to quaternions which don't support values greater than
		// PI, so we'll interpolate large rotations
		interpolateRotations: function ( curve ) {

			for ( var i = 1; i < curve.values.length; i ++ ) {

				var initialValue = curve.values[ i - 1 ];
				var valuesSpan = curve.values[ i ] - initialValue;

				var absoluteSpan = Math.abs( valuesSpan );

				if ( absoluteSpan >= 180 ) {

					var numSubIntervals = absoluteSpan / 180;

					var step = valuesSpan / numSubIntervals;
					var nextValue = initialValue + step;

					var initialTime = curve.times[ i - 1 ];
					var timeSpan = curve.times[ i ] - initialTime;
					var interval = timeSpan / numSubIntervals;
					var nextTime = initialTime + interval;

					var interpolatedTimes = [];
					var interpolatedValues = [];

					while ( nextTime < curve.times[ i ] ) {

						interpolatedTimes.push( nextTime );
						nextTime += interval;

						interpolatedValues.push( nextValue );
						nextValue += step;

					}

					curve.times = inject( curve.times, i, interpolatedTimes );
					curve.values = inject( curve.values, i, interpolatedValues );

				}

			}

		},

	};

	// parse an FBX file in ASCII format
	function TextParser() {}

	TextParser.prototype = {

		constructor: TextParser,

		getPrevNode: function () {

			return this.nodeStack[ this.currentIndent - 2 ];

		},

		getCurrentNode: function () {

			return this.nodeStack[ this.currentIndent - 1 ];

		},

		getCurrentProp: function () {

			return this.currentProp;

		},

		pushStack: function ( node ) {

			this.nodeStack.push( node );
			this.currentIndent += 1;

		},

		popStack: function () {

			this.nodeStack.pop();
			this.currentIndent -= 1;

		},

		setCurrentProp: function ( val, name ) {

			this.currentProp = val;
			this.currentPropName = name;

		},

		parse: function ( text ) {

			this.currentIndent = 0;

			this.allNodes = new FBXTree();
			this.nodeStack = [];
			this.currentProp = [];
			this.currentPropName = '';

			var self = this;

			var split = text.split( /[\r\n]+/ );

			split.forEach( function ( line, i ) {

				var matchComment = line.match( /^[\s\t]*;/ );
				var matchEmpty = line.match( /^[\s\t]*$/ );

				if ( matchComment || matchEmpty ) return;

				var matchBeginning = line.match( '^\\t{' + self.currentIndent + '}(\\w+):(.*){', '' );
				var matchProperty = line.match( '^\\t{' + ( self.currentIndent ) + '}(\\w+):[\\s\\t\\r\\n](.*)' );
				var matchEnd = line.match( '^\\t{' + ( self.currentIndent - 1 ) + '}}' );

				if ( matchBeginning ) {

					self.parseNodeBegin( line, matchBeginning );

				} else if ( matchProperty ) {

					self.parseNodeProperty( line, matchProperty, split[ ++ i ] );

				} else if ( matchEnd ) {

					self.popStack();

				} else if ( line.match( /^[^\s\t}]/ ) ) {

					// large arrays are split over multiple lines terminated with a ',' character
					// if this is encountered the line needs to be joined to the previous line
					self.parseNodePropertyContinued( line );

				}

			} );

			return this.allNodes;

		},

		parseNodeBegin: function ( line, property ) {

			var nodeName = property[ 1 ].trim().replace( /^"/, '' ).replace( /"$/, '' );

			var nodeAttrs = property[ 2 ].split( ',' ).map( function ( attr ) {

				return attr.trim().replace( /^"/, '' ).replace( /"$/, '' );

			} );

			var node = { name: nodeName };
			var attrs = this.parseNodeAttr( nodeAttrs );

			var currentNode = this.getCurrentNode();

			// a top node
			if ( this.currentIndent === 0 ) {

				this.allNodes.add( nodeName, node );

			} else { // a subnode

				// if the subnode already exists, append it
				if ( nodeName in currentNode ) {

					// special case Pose needs PoseNodes as an array
					if ( nodeName === 'PoseNode' ) {

						currentNode.PoseNode.push( node );

					} else if ( currentNode[ nodeName ].id !== undefined ) {

						currentNode[ nodeName ] = {};
						currentNode[ nodeName ][ currentNode[ nodeName ].id ] = currentNode[ nodeName ];

					}

					if ( attrs.id !== '' ) currentNode[ nodeName ][ attrs.id ] = node;

				} else if ( typeof attrs.id === 'number' ) {

					currentNode[ nodeName ] = {};
					currentNode[ nodeName ][ attrs.id ] = node;

				} else if ( nodeName !== 'Properties70' ) {

					if ( nodeName === 'PoseNode' )	currentNode[ nodeName ] = [ node ];
					else currentNode[ nodeName ] = node;

				}

			}

			if ( typeof attrs.id === 'number' ) node.id = attrs.id;
			if ( attrs.name !== '' ) node.attrName = attrs.name;
			if ( attrs.type !== '' ) node.attrType = attrs.type;

			this.pushStack( node );

		},

		parseNodeAttr: function ( attrs ) {

			var id = attrs[ 0 ];

			if ( attrs[ 0 ] !== '' ) {

				id = parseInt( attrs[ 0 ] );

				if ( isNaN( id ) ) {

					id = attrs[ 0 ];

				}

			}

			var name = '', type = '';

			if ( attrs.length > 1 ) {

				name = attrs[ 1 ].replace( /^(\w+)::/, '' );
				type = attrs[ 2 ];

			}

			return { id: id, name: name, type: type };

		},

		parseNodeProperty: function ( line, property, contentLine ) {

			var propName = property[ 1 ].replace( /^"/, '' ).replace( /"$/, '' ).trim();
			var propValue = property[ 2 ].replace( /^"/, '' ).replace( /"$/, '' ).trim();

			// for special case: base64 image data follows "Content: ," line
			//	Content: ,
			//	 "/9j/4RDaRXhpZgAATU0A..."
			if ( propName === 'Content' && propValue === ',' ) {

				propValue = contentLine.replace( /"/g, '' ).replace( /,$/, '' ).trim();

			}

			var currentNode = this.getCurrentNode();
			var parentName = currentNode.name;

			if ( parentName === 'Properties70' ) {

				this.parseNodeSpecialProperty( line, propName, propValue );
				return;

			}

			// Connections
			if ( propName === 'C' ) {

				var connProps = propValue.split( ',' ).slice( 1 );
				var from = parseInt( connProps[ 0 ] );
				var to = parseInt( connProps[ 1 ] );

				var rest = propValue.split( ',' ).slice( 3 );

				rest = rest.map( function ( elem ) {

					return elem.trim().replace( /^"/, '' );

				} );

				propName = 'connections';
				propValue = [ from, to ];
				append( propValue, rest );

				if ( currentNode[ propName ] === undefined ) {

					currentNode[ propName ] = [];

				}

			}

			// Node
			if ( propName === 'Node' ) currentNode.id = propValue;

			// connections
			if ( propName in currentNode && Array.isArray( currentNode[ propName ] ) ) {

				currentNode[ propName ].push( propValue );

			} else {

				if ( propName !== 'a' ) currentNode[ propName ] = propValue;
				else currentNode.a = propValue;

			}

			this.setCurrentProp( currentNode, propName );

			// convert string to array, unless it ends in ',' in which case more will be added to it
			if ( propName === 'a' && propValue.slice( - 1 ) !== ',' ) {

				currentNode.a = parseNumberArray( propValue );

			}

		},

		parseNodePropertyContinued: function ( line ) {

			var currentNode = this.getCurrentNode();

			currentNode.a += line;

			// if the line doesn't end in ',' we have reached the end of the property value
			// so convert the string to an array
			if ( line.slice( - 1 ) !== ',' ) {

				currentNode.a = parseNumberArray( currentNode.a );

			}

		},

		// parse "Property70"
		parseNodeSpecialProperty: function ( line, propName, propValue ) {

			// split this
			// P: "Lcl Scaling", "Lcl Scaling", "", "A",1,1,1
			// into array like below
			// ["Lcl Scaling", "Lcl Scaling", "", "A", "1,1,1" ]
			var props = propValue.split( '",' ).map( function ( prop ) {

				return prop.trim().replace( /^\"/, '' ).replace( /\s/, '_' );

			} );

			var innerPropName = props[ 0 ];
			var innerPropType1 = props[ 1 ];
			var innerPropType2 = props[ 2 ];
			var innerPropFlag = props[ 3 ];
			var innerPropValue = props[ 4 ];

			// cast values where needed, otherwise leave as strings
			switch ( innerPropType1 ) {

				case 'int':
				case 'enum':
				case 'bool':
				case 'ULongLong':
				case 'double':
				case 'Number':
				case 'FieldOfView':
					innerPropValue = parseFloat( innerPropValue );
					break;

				case 'Color':
				case 'ColorRGB':
				case 'Vector3D':
				case 'Lcl_Translation':
				case 'Lcl_Rotation':
				case 'Lcl_Scaling':
					innerPropValue = parseNumberArray( innerPropValue );
					break;

			}

			// CAUTION: these props must append to parent's parent
			this.getPrevNode()[ innerPropName ] = {

				'type': innerPropType1,
				'type2': innerPropType2,
				'flag': innerPropFlag,
				'value': innerPropValue

			};

			this.setCurrentProp( this.getPrevNode(), innerPropName );

		},

	};

	// Parse an FBX file in Binary format
	function BinaryParser() {}

	BinaryParser.prototype = {

		constructor: BinaryParser,

		parse: function ( buffer ) {

			var reader = new BinaryReader( buffer );
			reader.skip( 23 ); // skip magic 23 bytes

			var version = reader.getUint32();

			//console.log( 'THREE.FBXLoader: FBX binary version: ' + version );

			var allNodes = new FBXTree();

			while ( ! this.endOfContent( reader ) ) {

				var node = this.parseNode( reader, version );
				if ( node !== null ) allNodes.add( node.name, node );

			}

			return allNodes;

		},

		// Check if reader has reached the end of content.
		endOfContent: function ( reader ) {

			// footer size: 160bytes + 16-byte alignment padding
			// - 16bytes: magic
			// - padding til 16-byte alignment (at least 1byte?)
			//	(seems like some exporters embed fixed 15 or 16bytes?)
			// - 4bytes: magic
			// - 4bytes: version
			// - 120bytes: zero
			// - 16bytes: magic
			if ( reader.size() % 16 === 0 ) {

				return ( ( reader.getOffset() + 160 + 16 ) & ~ 0xf ) >= reader.size();

			} else {

				return reader.getOffset() + 160 + 16 >= reader.size();

			}

		},

		// recursively parse nodes until the end of the file is reached
		parseNode: function ( reader, version ) {

			var node = {};

			// The first three data sizes depends on version.
			var endOffset = ( version >= 7500 ) ? reader.getUint64() : reader.getUint32();
			var numProperties = ( version >= 7500 ) ? reader.getUint64() : reader.getUint32();

			// note: do not remove this even if you get a linter warning as it moves the buffer forward
			var propertyListLen = ( version >= 7500 ) ? reader.getUint64() : reader.getUint32();

			var nameLen = reader.getUint8();
			var name = reader.getString( nameLen );

			// Regards this node as NULL-record if endOffset is zero
			if ( endOffset === 0 ) return null;

			var propertyList = [];

			for ( var i = 0; i < numProperties; i ++ ) {

				propertyList.push( this.parseProperty( reader ) );

			}

			// Regards the first three elements in propertyList as id, attrName, and attrType
			var id = propertyList.length > 0 ? propertyList[ 0 ] : '';
			var attrName = propertyList.length > 1 ? propertyList[ 1 ] : '';
			var attrType = propertyList.length > 2 ? propertyList[ 2 ] : '';

			// check if this node represents just a single property
			// like (name, 0) set or (name2, [0, 1, 2]) set of {name: 0, name2: [0, 1, 2]}
			node.singleProperty = ( numProperties === 1 && reader.getOffset() === endOffset ) ? true : false;

			while ( endOffset > reader.getOffset() ) {

				var subNode = this.parseNode( reader, version );

				if ( subNode !== null ) this.parseSubNode( name, node, subNode );

			}

			node.propertyList = propertyList; // raw property list used by parent

			if ( typeof id === 'number' ) node.id = id;
			if ( attrName !== '' ) node.attrName = attrName;
			if ( attrType !== '' ) node.attrType = attrType;
			if ( name !== '' ) node.name = name;

			return node;

		},

		parseSubNode: function ( name, node, subNode ) {

			// special case: child node is single property
			if ( subNode.singleProperty === true ) {

				var value = subNode.propertyList[ 0 ];

				if ( Array.isArray( value ) ) {

					node[ subNode.name ] = subNode;

					subNode.a = value;

				} else {

					node[ subNode.name ] = value;

				}

			} else if ( name === 'Connections' && subNode.name === 'C' ) {

				var array = [];

				subNode.propertyList.forEach( function ( property, i ) {

					// first Connection is FBX type (OO, OP, etc.). We'll discard these
					if ( i !== 0 ) array.push( property );

				} );

				if ( node.connections === undefined ) {

					node.connections = [];

				}

				node.connections.push( array );

			} else if ( subNode.name === 'Properties70' ) {

				var keys = Object.keys( subNode );

				keys.forEach( function ( key ) {

					node[ key ] = subNode[ key ];

				} );

			} else if ( name === 'Properties70' && subNode.name === 'P' ) {

				var innerPropName = subNode.propertyList[ 0 ];
				var innerPropType1 = subNode.propertyList[ 1 ];
				var innerPropType2 = subNode.propertyList[ 2 ];
				var innerPropFlag = subNode.propertyList[ 3 ];
				var innerPropValue;

				if ( innerPropName.indexOf( 'Lcl ' ) === 0 ) innerPropName = innerPropName.replace( 'Lcl ', 'Lcl_' );
				if ( innerPropType1.indexOf( 'Lcl ' ) === 0 ) innerPropType1 = innerPropType1.replace( 'Lcl ', 'Lcl_' );

				if ( innerPropType1 === 'Color' || innerPropType1 === 'ColorRGB' || innerPropType1 === 'Vector' || innerPropType1 === 'Vector3D' || innerPropType1.indexOf( 'Lcl_' ) === 0 ) {

					innerPropValue = [
						subNode.propertyList[ 4 ],
						subNode.propertyList[ 5 ],
						subNode.propertyList[ 6 ]
					];

				} else {

					innerPropValue = subNode.propertyList[ 4 ];

				}

				// this will be copied to parent, see above
				node[ innerPropName ] = {

					'type': innerPropType1,
					'type2': innerPropType2,
					'flag': innerPropFlag,
					'value': innerPropValue

				};

			} else if ( node[ subNode.name ] === undefined ) {

				if ( typeof subNode.id === 'number' ) {

					node[ subNode.name ] = {};
					node[ subNode.name ][ subNode.id ] = subNode;

				} else {

					node[ subNode.name ] = subNode;

				}

			} else {

				if ( subNode.name === 'PoseNode' ) {

					if ( ! Array.isArray( node[ subNode.name ] ) ) {

						node[ subNode.name ] = [ node[ subNode.name ] ];

					}

					node[ subNode.name ].push( subNode );

				} else if ( node[ subNode.name ][ subNode.id ] === undefined ) {

					node[ subNode.name ][ subNode.id ] = subNode;

				}

			}

		},

		parseProperty: function ( reader ) {

			var type = reader.getString( 1 );

			switch ( type ) {

				case 'C':
					return reader.getBoolean();

				case 'D':
					return reader.getFloat64();

				case 'F':
					return reader.getFloat32();

				case 'I':
					return reader.getInt32();

				case 'L':
					return reader.getInt64();

				case 'R':
					var length = reader.getUint32();
					return reader.getArrayBuffer( length );

				case 'S':
					var length = reader.getUint32();
					return reader.getString( length );

				case 'Y':
					return reader.getInt16();

				case 'b':
				case 'c':
				case 'd':
				case 'f':
				case 'i':
				case 'l':

					var arrayLength = reader.getUint32();
					var encoding = reader.getUint32(); // 0: non-compressed, 1: compressed
					var compressedLength = reader.getUint32();

					if ( encoding === 0 ) {

						switch ( type ) {

							case 'b':
							case 'c':
								return reader.getBooleanArray( arrayLength );

							case 'd':
								return reader.getFloat64Array( arrayLength );

							case 'f':
								return reader.getFloat32Array( arrayLength );

							case 'i':
								return reader.getInt32Array( arrayLength );

							case 'l':
								return reader.getInt64Array( arrayLength );

						}

					}

					if ( typeof Zlib === 'undefined' ) {

						console.error( 'THREE.FBXLoader: External library Inflate.min.js required, obtain or import from https://github.com/imaya/zlib.js' );

					}

					var inflate = new Zlib.Inflate( new Uint8Array( reader.getArrayBuffer( compressedLength ) ) ); // eslint-disable-line no-undef
					var reader2 = new BinaryReader( inflate.decompress().buffer );

					switch ( type ) {

						case 'b':
						case 'c':
							return reader2.getBooleanArray( arrayLength );

						case 'd':
							return reader2.getFloat64Array( arrayLength );

						case 'f':
							return reader2.getFloat32Array( arrayLength );

						case 'i':
							return reader2.getInt32Array( arrayLength );

						case 'l':
							return reader2.getInt64Array( arrayLength );

					}

				default:
					throw new Error( 'THREE.FBXLoader: Unknown property type ' + type );

			}

		}

	};

	function BinaryReader( buffer, littleEndian ) {

		this.dv = new DataView( buffer );
		this.offset = 0;
		this.littleEndian = ( littleEndian !== undefined ) ? littleEndian : true;

	}

	BinaryReader.prototype = {

		constructor: BinaryReader,

		getOffset: function () {

			return this.offset;

		},

		size: function () {

			return this.dv.buffer.byteLength;

		},

		skip: function ( length ) {

			this.offset += length;

		},

		// seems like true/false representation depends on exporter.
		// true: 1 or 'Y'(=0x59), false: 0 or 'T'(=0x54)
		// then sees LSB.
		getBoolean: function () {

			return ( this.getUint8() & 1 ) === 1;

		},

		getBooleanArray: function ( size ) {

			var a = [];

			for ( var i = 0; i < size; i ++ ) {

				a.push( this.getBoolean() );

			}

			return a;

		},

		getUint8: function () {

			var value = this.dv.getUint8( this.offset );
			this.offset += 1;
			return value;

		},

		getInt16: function () {

			var value = this.dv.getInt16( this.offset, this.littleEndian );
			this.offset += 2;
			return value;

		},

		getInt32: function () {

			var value = this.dv.getInt32( this.offset, this.littleEndian );
			this.offset += 4;
			return value;

		},

		getInt32Array: function ( size ) {

			var a = [];

			for ( var i = 0; i < size; i ++ ) {

				a.push( this.getInt32() );

			}

			return a;

		},

		getUint32: function () {

			var value = this.dv.getUint32( this.offset, this.littleEndian );
			this.offset += 4;
			return value;

		},

		// JavaScript doesn't support 64-bit integer so calculate this here
		// 1 << 32 will return 1 so using multiply operation instead here.
		// There's a possibility that this method returns wrong value if the value
		// is out of the range between Number.MAX_SAFE_INTEGER and Number.MIN_SAFE_INTEGER.
		// TODO: safely handle 64-bit integer
		getInt64: function () {

			var low, high;

			if ( this.littleEndian ) {

				low = this.getUint32();
				high = this.getUint32();

			} else {

				high = this.getUint32();
				low = this.getUint32();

			}

			// calculate negative value
			if ( high & 0x80000000 ) {

				high = ~ high & 0xFFFFFFFF;
				low = ~ low & 0xFFFFFFFF;

				if ( low === 0xFFFFFFFF ) high = ( high + 1 ) & 0xFFFFFFFF;

				low = ( low + 1 ) & 0xFFFFFFFF;

				return - ( high * 0x100000000 + low );

			}

			return high * 0x100000000 + low;

		},

		getInt64Array: function ( size ) {

			var a = [];

			for ( var i = 0; i < size; i ++ ) {

				a.push( this.getInt64() );

			}

			return a;

		},

		// Note: see getInt64() comment
		getUint64: function () {

			var low, high;

			if ( this.littleEndian ) {

				low = this.getUint32();
				high = this.getUint32();

			} else {

				high = this.getUint32();
				low = this.getUint32();

			}

			return high * 0x100000000 + low;

		},

		getFloat32: function () {

			var value = this.dv.getFloat32( this.offset, this.littleEndian );
			this.offset += 4;
			return value;

		},

		getFloat32Array: function ( size ) {

			var a = [];

			for ( var i = 0; i < size; i ++ ) {

				a.push( this.getFloat32() );

			}

			return a;

		},

		getFloat64: function () {

			var value = this.dv.getFloat64( this.offset, this.littleEndian );
			this.offset += 8;
			return value;

		},

		getFloat64Array: function ( size ) {

			var a = [];

			for ( var i = 0; i < size; i ++ ) {

				a.push( this.getFloat64() );

			}

			return a;

		},

		getArrayBuffer: function ( size ) {

			var value = this.dv.buffer.slice( this.offset, this.offset + size );
			this.offset += size;
			return value;

		},

		getString: function ( size ) {

			// note: safari 9 doesn't support Uint8Array.indexOf; create intermediate array instead
			var a = [];

			for ( var i = 0; i < size; i ++ ) {

				a[ i ] = this.getUint8();

			}

			var nullByte = a.indexOf( 0 );
			if ( nullByte >= 0 ) a = a.slice( 0, nullByte );

			return THREE.LoaderUtils.decodeText( new Uint8Array( a ) );

		}

	};

	// FBXTree holds a representation of the FBX data, returned by the TextParser ( FBX ASCII format)
	// and BinaryParser( FBX Binary format)
	function FBXTree() {}

	FBXTree.prototype = {

		constructor: FBXTree,

		add: function ( key, val ) {

			this[ key ] = val;

		},

	};

	// ************** UTILITY FUNCTIONS **************

	function isFbxFormatBinary( buffer ) {

		var CORRECT = 'Kaydara FBX Binary  \0';

		return buffer.byteLength >= CORRECT.length && CORRECT === convertArrayBufferToString( buffer, 0, CORRECT.length );

	}

	function isFbxFormatASCII( text ) {

		var CORRECT = [ 'K', 'a', 'y', 'd', 'a', 'r', 'a', '\\', 'F', 'B', 'X', '\\', 'B', 'i', 'n', 'a', 'r', 'y', '\\', '\\' ];

		var cursor = 0;

		function read( offset ) {

			var result = text[ offset - 1 ];
			text = text.slice( cursor + offset );
			cursor ++;
			return result;

		}

		for ( var i = 0; i < CORRECT.length; ++ i ) {

			var num = read( 1 );
			if ( num === CORRECT[ i ] ) {

				return false;

			}

		}

		return true;

	}

	function getFbxVersion( text ) {

		var versionRegExp = /FBXVersion: (\d+)/;
		var match = text.match( versionRegExp );
		if ( match ) {

			var version = parseInt( match[ 1 ] );
			return version;

		}
		throw new Error( 'THREE.FBXLoader: Cannot find the version number for the file given.' );

	}

	// Converts FBX ticks into real time seconds.
	function convertFBXTimeToSeconds( time ) {

		return time / 46186158000;

	}

	var dataArray = [];

	// extracts the data from the correct position in the FBX array based on indexing type
	function getData( polygonVertexIndex, polygonIndex, vertexIndex, infoObject ) {

		var index;

		switch ( infoObject.mappingType ) {

			case 'ByPolygonVertex' :
				index = polygonVertexIndex;
				break;
			case 'ByPolygon' :
				index = polygonIndex;
				break;
			case 'ByVertice' :
				index = vertexIndex;
				break;
			case 'AllSame' :
				index = infoObject.indices[ 0 ];
				break;
			default :
				console.warn( 'THREE.FBXLoader: unknown attribute mapping type ' + infoObject.mappingType );

		}

		if ( infoObject.referenceType === 'IndexToDirect' ) index = infoObject.indices[ index ];

		var from = index * infoObject.dataSize;
		var to = from + infoObject.dataSize;

		return slice( dataArray, infoObject.buffer, from, to );

	}

	var tempEuler = new THREE.Euler();
	var tempVec = new THREE.Vector3();

	// generate transformation from FBX transform data
	// ref: https://help.autodesk.com/view/FBX/2017/ENU/?guid=__files_GUID_10CDD63C_79C1_4F2D_BB28_AD2BE65A02ED_htm
	// ref: http://docs.autodesk.com/FBX/2014/ENU/FBX-SDK-Documentation/index.html?url=cpp_ref/_transformations_2main_8cxx-example.html,topicNumber=cpp_ref__transformations_2main_8cxx_example_htmlfc10a1e1-b18d-4e72-9dc0-70d0f1959f5e
	function generateTransform( transformData ) {

		var lTranslationM = new THREE.Matrix4();
		var lPreRotationM = new THREE.Matrix4();
		var lRotationM = new THREE.Matrix4();
		var lPostRotationM = new THREE.Matrix4();

		var lScalingM = new THREE.Matrix4();
		var lScalingPivotM = new THREE.Matrix4();
		var lScalingOffsetM = new THREE.Matrix4();
		var lRotationOffsetM = new THREE.Matrix4();
		var lRotationPivotM = new THREE.Matrix4();

		var lParentGX = new THREE.Matrix4();
		var lGlobalT = new THREE.Matrix4();

		var inheritType = ( transformData.inheritType ) ? transformData.inheritType : 0;

		if ( transformData.translation ) lTranslationM.setPosition( tempVec.fromArray( transformData.translation ) );

		if ( transformData.preRotation ) {

			var array = transformData.preRotation.map( THREE.Math.degToRad );
			array.push( transformData.eulerOrder );
			lPreRotationM.makeRotationFromEuler( tempEuler.fromArray( array ) );

		}

		if ( transformData.rotation ) {

			var array = transformData.rotation.map( THREE.Math.degToRad );
			array.push( transformData.eulerOrder );
			lRotationM.makeRotationFromEuler( tempEuler.fromArray( array ) );

		}

		if ( transformData.postRotation ) {

			var array = transformData.postRotation.map( THREE.Math.degToRad );
			array.push( transformData.eulerOrder );
			lPostRotationM.makeRotationFromEuler( tempEuler.fromArray( array ) );

		}

		if ( transformData.scale ) lScalingM.scale( tempVec.fromArray( transformData.scale ) );

		// Pivots and offsets
		if ( transformData.scalingOffset ) lScalingOffsetM.setPosition( tempVec.fromArray( transformData.scalingOffset ) );
		if ( transformData.scalingPivot ) lScalingPivotM.setPosition( tempVec.fromArray( transformData.scalingPivot ) );
		if ( transformData.rotationOffset ) lRotationOffsetM.setPosition( tempVec.fromArray( transformData.rotationOffset ) );
		if ( transformData.rotationPivot ) lRotationPivotM.setPosition( tempVec.fromArray( transformData.rotationPivot ) );

		// parent transform
		if ( transformData.parentMatrixWorld ) lParentGX = transformData.parentMatrixWorld;

		// Global Rotation
		var lLRM = lPreRotationM.multiply( lRotationM ).multiply( lPostRotationM );
		var lParentGRM = new THREE.Matrix4();
		lParentGX.extractRotation( lParentGRM );

		// Global Shear*Scaling
		var lParentTM = new THREE.Matrix4();
		var lLSM;
		var lParentGSM;
		var lParentGRSM;

		lParentTM.copyPosition( lParentGX );
		lParentGRSM = lParentTM.getInverse( lParentTM ).multiply( lParentGX );
		lParentGSM = lParentGRM.getInverse( lParentGRM ).multiply( lParentGRSM );
		lLSM = lScalingM;

		var lGlobalRS;
		if ( inheritType === 0 ) {

			lGlobalRS = lParentGRM.multiply( lLRM ).multiply( lParentGSM ).multiply( lLSM );

		} else if ( inheritType === 1 ) {

			lGlobalRS = lParentGRM.multiply( lParentGSM ).multiply( lLRM ).multiply( lLSM );

		} else {

			var lParentLSM = new THREE.Matrix4().copy( lScalingM );

			var lParentGSM_noLocal = lParentGSM.multiply( lParentLSM.getInverse( lParentLSM ) );

			lGlobalRS = lParentGRM.multiply( lLRM ).multiply( lParentGSM_noLocal ).multiply( lLSM );

		}

		// Calculate the local transform matrix
		var lTransform = lTranslationM.multiply( lRotationOffsetM ).multiply( lRotationPivotM ).multiply( lPreRotationM ).multiply( lRotationM ).multiply( lPostRotationM ).multiply( lRotationPivotM.getInverse( lRotationPivotM ) ).multiply( lScalingOffsetM ).multiply( lScalingPivotM ).multiply( lScalingM ).multiply( lScalingPivotM.getInverse( lScalingPivotM ) );

		var lLocalTWithAllPivotAndOffsetInfo = new THREE.Matrix4().copyPosition( lTransform );

		var lGlobalTranslation = lParentGX.multiply( lLocalTWithAllPivotAndOffsetInfo );
		lGlobalT.copyPosition( lGlobalTranslation );

		lTransform = lGlobalT.multiply( lGlobalRS );

		return lTransform;

	}

	// Returns the three.js intrinsic Euler order corresponding to FBX extrinsic Euler order
	// ref: http://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_class_fbx_euler_html
	function getEulerOrder( order ) {

		order = order || 0;

		var enums = [
			'ZYX', // -> XYZ extrinsic
			'YZX', // -> XZY extrinsic
			'XZY', // -> YZX extrinsic
			'ZXY', // -> YXZ extrinsic
			'YXZ', // -> ZXY extrinsic
			'XYZ', // -> ZYX extrinsic
			//'SphericXYZ', // not possible to support
		];

		if ( order === 6 ) {

			console.warn( 'THREE.FBXLoader: unsupported Euler Order: Spherical XYZ. Animations and rotations may be incorrect.' );
			return enums[ 0 ];

		}

		return enums[ order ];

	}

	// Parses comma separated list of numbers and returns them an array.
	// Used internally by the TextParser
	function parseNumberArray( value ) {

		var array = value.split( ',' ).map( function ( val ) {

			return parseFloat( val );

		} );

		return array;

	}

	function convertArrayBufferToString( buffer, from, to ) {

		if ( from === undefined ) from = 0;
		if ( to === undefined ) to = buffer.byteLength;

		return THREE.LoaderUtils.decodeText( new Uint8Array( buffer, from, to ) );

	}

	function append( a, b ) {

		for ( var i = 0, j = a.length, l = b.length; i < l; i ++, j ++ ) {

			a[ j ] = b[ i ];

		}

	}

	function slice( a, b, from, to ) {

		for ( var i = from, j = 0; i < to; i ++, j ++ ) {

			a[ j ] = b[ i ];

		}

		return a;

	}

	// inject array a2 into array a1 at index
	function inject( a1, index, a2 ) {

		return a1.slice( 0, index ).concat( a2 ).concat( a1.slice( index ) );

	}

	return FBXLoader;

} )();
;/**

 * @author qiao / https://github.com/qiao

 * @author mrdoob / http://mrdoob.com

 * @author alteredq / http://alteredqualia.com/

 * @author WestLangley / http://github.com/WestLangley

 * @author erich666 / http://erichaines.com

 */



// This set of controls performs orbiting, dollying (zooming), and panning.

// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).

//

//    Orbit - left mouse / touch: one-finger move

//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish

//    Pan - right mouse, or left mouse + ctrl/metaKey, or arrow keys / touch: two-finger move



THREE.OrbitControls = function(object, domElement) {



    this.object = object;



    this.domElement = (domElement !== undefined) ? domElement : document;



    // Set to false to disable this control

    this.enabled = true;



    // "target" sets the location of focus, where the object orbits around

    this.target = new THREE.Vector3();



    // How far you can dolly in and out ( PerspectiveCamera only )

    this.minDistance = 0;

    this.maxDistance = Infinity;



    // How far you can zoom in and out ( OrthographicCamera only )

    this.minZoom = 0;

    this.maxZoom = Infinity;



    // How far you can orbit vertically, upper and lower limits.

    // Range is 0 to Math.PI radians.

    this.minPolarAngle = 0; // radians

    this.maxPolarAngle = Math.PI; // radians



    // How far you can orbit horizontally, upper and lower limits.

    // If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].

    this.minAzimuthAngle = -Infinity; // radians

    this.maxAzimuthAngle = Infinity; // radians



    // Set to true to enable damping (inertia)

    // If damping is enabled, you must call controls.update() in your animation loop

    this.enableDamping = false;

    this.dampingFactor = 0.25;



    // This option actually enables dollying in and out; left as "zoom" for backwards compatibility.

    // Set to false to disable zooming

    this.enableZoom = true;

    this.zoomSpeed = 1.0;



    // Set to false to disable rotating

    this.enableRotate = true;

    this.rotateSpeed = 1.0;



    // Set to false to disable panning

    this.enablePan = true;

    this.panSpeed = 1.0;

    this.screenSpacePanning = false; // if true, pan in screen-space

    this.keyPanSpeed = 7.0; // pixels moved per arrow key push



    // Set to true to automatically rotate around the target

    // If auto-rotate is enabled, you must call controls.update() in your animation loop

    this.autoRotate = false;

    this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60



    // Set to false to disable use of the keys

    this.enableKeys = true;



    // The four arrow keys

    this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };



    // Mouse buttons

    this.mouseButtons = { LEFT: THREE.MOUSE.LEFT, MIDDLE: THREE.MOUSE.MIDDLE, RIGHT: THREE.MOUSE.RIGHT };



    // for reset

    this.target0 = this.target.clone();

    this.position0 = this.object.position.clone();

    this.zoom0 = this.object.zoom;





    // modified by Z

    this.active = false;

    this.mouseDownCallback = function(event) {}

    this.mouseUpCallback = function(event) {}





    //

    // public methods

    //



    this.getPolarAngle = function() {



        return spherical.phi;



    };



    this.getAzimuthalAngle = function() {



        return spherical.theta;



    };



    this.saveState = function() {



        scope.target0.copy(scope.target);

        scope.position0.copy(scope.object.position);

        scope.zoom0 = scope.object.zoom;



    };



    this.reset = function() {



        scope.target.copy(scope.target0);

        scope.object.position.copy(scope.position0);

        scope.object.zoom = scope.zoom0;



        scope.object.updateProjectionMatrix();

        scope.dispatchEvent(changeEvent);



        scope.update();



        state = STATE.NONE;



    };



    // this method is exposed, but perhaps it would be better if we can make it private...

    this.update = function() {



        var offset = new THREE.Vector3();



        // so camera.up is the orbit axis

        var quat = new THREE.Quaternion().setFromUnitVectors(object.up, new THREE.Vector3(0, 1, 0));

        var quatInverse = quat.clone().inverse();



        var lastPosition = new THREE.Vector3();

        var lastQuaternion = new THREE.Quaternion();



        return function update() {



            var position = scope.object.position;



            offset.copy(position).sub(scope.target);



            // rotate offset to "y-axis-is-up" space

            offset.applyQuaternion(quat);



            // angle from z-axis around y-axis

            spherical.setFromVector3(offset);



            if (scope.autoRotate && state === STATE.NONE) {



                rotateLeft(getAutoRotationAngle());



            }



            spherical.theta += sphericalDelta.theta;

            spherical.phi += sphericalDelta.phi;



            // restrict theta to be between desired limits

            spherical.theta = Math.max(scope.minAzimuthAngle, Math.min(scope.maxAzimuthAngle, spherical.theta));



            // restrict phi to be between desired limits

            spherical.phi = Math.max(scope.minPolarAngle, Math.min(scope.maxPolarAngle, spherical.phi));



            spherical.makeSafe();





            spherical.radius *= scale;



            // restrict radius to be between desired limits

            if (spherical.radius > scope.maxDistance) {

                console.log('Max distance reached', spherical.radius, scope.maxDistance);

            }

            spherical.radius = Math.max(scope.minDistance, Math.min(scope.maxDistance, spherical.radius));
            this.distance = spherical.radius;


            // move target to panned location

            scope.target.add(panOffset);



            offset.setFromSpherical(spherical);



            // rotate offset back to "camera-up-vector-is-up" space

            offset.applyQuaternion(quatInverse);



            position.copy(scope.target).add(offset);



            scope.object.lookAt(scope.target);



            if (scope.enableDamping === true) {



                sphericalDelta.theta *= (1 - scope.dampingFactor);

                sphericalDelta.phi *= (1 - scope.dampingFactor);



                panOffset.multiplyScalar(1 - scope.dampingFactor);



            } else {



                sphericalDelta.set(0, 0, 0);



                panOffset.set(0, 0, 0);



            }



            scale = 1;



            // update condition is:

            // min(camera displacement, camera rotation in radians)^2 > EPS

            // using small-angle approximation cos(x/2) = 1 - x^2 / 8



            if (zoomChanged ||

                lastPosition.distanceToSquared(scope.object.position) > EPS ||

                8 * (1 - lastQuaternion.dot(scope.object.quaternion)) > EPS) {



                scope.dispatchEvent(changeEvent);



                lastPosition.copy(scope.object.position);

                lastQuaternion.copy(scope.object.quaternion);

                zoomChanged = false;



                return true;



            }



            return false;



        };



    }();



    this.dispose = function() {



        scope.domElement.removeEventListener('contextmenu', onContextMenu, false);

        scope.domElement.removeEventListener('mousedown', onMouseDown, false);

        scope.domElement.removeEventListener('wheel', onMouseWheel, false);



        scope.domElement.removeEventListener('touchstart', onTouchStart, false);

        scope.domElement.removeEventListener('touchend', onTouchEnd, false);

        scope.domElement.removeEventListener('touchmove', onTouchMove, false);



        document.removeEventListener('mousemove', onMouseMove, false);

        document.removeEventListener('mouseup', onMouseUp, false);



        window.removeEventListener('keydown', onKeyDown, false);



        //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?



    };



    //

    // internals

    //



    var scope = this;



    var changeEvent = { type: 'change' };

    var startEvent = { type: 'start' };

    var endEvent = { type: 'end' };



    var STATE = { NONE: -1, ROTATE: 0, DOLLY: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_DOLLY_PAN: 4 };



    var state = STATE.NONE;



    this.GetState = function() {

        return state;

    }



    var EPS = 0.000001;



    // current position in spherical coordinates

    var spherical = new THREE.Spherical();

    var sphericalDelta = new THREE.Spherical();



    var scale = 1;

    var panOffset = new THREE.Vector3();

    var zoomChanged = false;



    var rotateStart = new THREE.Vector2();

    var rotateEnd = new THREE.Vector2();

    var rotateDelta = new THREE.Vector2();



    var panStart = new THREE.Vector2();

    var panEnd = new THREE.Vector2();

    var panDelta = new THREE.Vector2();



    var dollyStart = new THREE.Vector2();

    var dollyEnd = new THREE.Vector2();

    var dollyDelta = new THREE.Vector2();



    function getAutoRotationAngle() {



        return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;



    }



    function getZoomScale() {



        return Math.pow(0.95, scope.zoomSpeed);



    }



    function rotateLeft(angle) {



        sphericalDelta.theta -= angle;



    }



    function rotateUp(angle) {



        sphericalDelta.phi -= angle;



    }



    var panLeft = function() {



        var v = new THREE.Vector3();



        return function panLeft(distance, objectMatrix) {



            v.setFromMatrixColumn(objectMatrix, 0); // get X column of objectMatrix

            v.multiplyScalar(-distance);



            panOffset.add(v);



        };



    }();



    var panUp = function() {



        var v = new THREE.Vector3();



        return function panUp(distance, objectMatrix) {



            if (scope.screenSpacePanning === true) {



                v.setFromMatrixColumn(objectMatrix, 1);



            } else {



                v.setFromMatrixColumn(objectMatrix, 0);

                v.crossVectors(scope.object.up, v);



            }



            v.multiplyScalar(distance);



            panOffset.add(v);



        };



    }();



    // deltaX and deltaY are in pixels; right and down are positive

    var pan = function() {



        var offset = new THREE.Vector3();



        return function pan(deltaX, deltaY) {



            var element = scope.domElement === document ? scope.domElement.body : scope.domElement;



            if (scope.object.isPerspectiveCamera) {



                // perspective

                var position = scope.object.position;

                offset.copy(position).sub(scope.target);

                var targetDistance = offset.length();



                // half of the fov is center to top of screen

                targetDistance *= Math.tan((scope.object.fov / 2) * Math.PI / 180.0);



                // we use only clientHeight here so aspect ratio does not distort speed

                panLeft(2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix);

                panUp(2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix);



            } else if (scope.object.isOrthographicCamera) {



                // orthographic

                panLeft(deltaX * (scope.object.right - scope.object.left) / scope.object.zoom / element.clientWidth, scope.object.matrix);

                panUp(deltaY * (scope.object.top - scope.object.bottom) / scope.object.zoom / element.clientHeight, scope.object.matrix);



            } else {



                // camera neither orthographic nor perspective

                console.warn('WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.');

                scope.enablePan = false;



            }



        };



    }();



    function dollyIn(dollyScale) {



        if (scope.object.isPerspectiveCamera) {



            scale /= dollyScale;



        } else if (scope.object.isOrthographicCamera) {



            scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom * dollyScale));

            scope.object.updateProjectionMatrix();

            zoomChanged = true;



        } else {



            console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');

            scope.enableZoom = false;



        }



    }



    function dollyOut(dollyScale) {



        if (scope.object.isPerspectiveCamera) {



            scale *= dollyScale;



        } else if (scope.object.isOrthographicCamera) {



            scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom / dollyScale));

            scope.object.updateProjectionMatrix();

            zoomChanged = true;



        } else {



            console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');

            scope.enableZoom = false;



        }



    }



    //

    // event callbacks - update the object state

    //



    function handleMouseDownRotate(event) {



        //console.log( 'handleMouseDownRotate' );



        rotateStart.set(event.clientX, event.clientY);



    }



    function handleMouseDownDolly(event) {



        //console.log( 'handleMouseDownDolly' );



        dollyStart.set(event.clientX, event.clientY);



    }



    function handleMouseDownPan(event) {



        //console.log( 'handleMouseDownPan' );



        panStart.set(event.clientX, event.clientY);



    }



    function handleMouseMoveRotate(event) {



        //console.log( 'handleMouseMoveRotate' );



        rotateEnd.set(event.clientX, event.clientY);



        rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);



        var element = scope.domElement === document ? scope.domElement.body : scope.domElement;



        rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height



        rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);



        rotateStart.copy(rotateEnd);



        scope.update();



    }



    function handleMouseMoveDolly(event) {



        //console.log( 'handleMouseMoveDolly' );



        dollyEnd.set(event.clientX, event.clientY);



        dollyDelta.subVectors(dollyEnd, dollyStart);



        if (dollyDelta.y > 0) {



            dollyIn(getZoomScale());



        } else if (dollyDelta.y < 0) {



            dollyOut(getZoomScale());



        }



        dollyStart.copy(dollyEnd);



        scope.update();



    }



    function handleMouseMovePan(event) {



        //console.log( 'handleMouseMovePan' );



        panEnd.set(event.clientX, event.clientY);



        panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);



        pan(panDelta.x, panDelta.y);



        panStart.copy(panEnd);



        scope.update();



    }



    function handleMouseUp(event) {



        // console.log( 'handleMouseUp' );



        scope.mouseUpCallback(event);

        scope.active = false;



    }



    function handleMouseWheel(event) {



        // console.log( 'handleMouseWheel' );



        if (event.deltaY < 0) {



            dollyOut(getZoomScale());



        } else if (event.deltaY > 0) {



            dollyIn(getZoomScale());



        }



        scope.update();



    }



    function handleKeyDown(event) {



        //console.log( 'handleKeyDown' );



        switch (event.keyCode) {



            case scope.keys.UP:

                pan(0, scope.keyPanSpeed);

                scope.update();

                break;



            case scope.keys.BOTTOM:

                pan(0, -scope.keyPanSpeed);

                scope.update();

                break;



            case scope.keys.LEFT:

                pan(scope.keyPanSpeed, 0);

                scope.update();

                break;



            case scope.keys.RIGHT:

                pan(-scope.keyPanSpeed, 0);

                scope.update();

                break;



        }



    }



    function handleTouchStartRotate(event) {



        //console.log( 'handleTouchStartRotate' );



        rotateStart.set(event.touches[0].pageX, event.touches[0].pageY);



    }



    function handleTouchStartDollyPan(event) {



        //console.log( 'handleTouchStartDollyPan' );



        if (scope.enableZoom) {



            var dx = event.touches[0].pageX - event.touches[1].pageX;

            var dy = event.touches[0].pageY - event.touches[1].pageY;



            var distance = Math.sqrt(dx * dx + dy * dy);



            dollyStart.set(0, distance);



        }



        if (scope.enablePan) {



            var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);

            var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);



            panStart.set(x, y);



        }



    }



    function handleTouchMoveRotate(event) {



        //console.log( 'handleTouchMoveRotate' );



        rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);



        rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);



        var element = scope.domElement === document ? scope.domElement.body : scope.domElement;



        rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height



        rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);



        rotateStart.copy(rotateEnd);



        scope.update();



    }



    function handleTouchMoveDollyPan(event) {



        //console.log( 'handleTouchMoveDollyPan' );



        if (scope.enableZoom) {



            var dx = event.touches[0].pageX - event.touches[1].pageX;

            var dy = event.touches[0].pageY - event.touches[1].pageY;



            var distance = Math.sqrt(dx * dx + dy * dy);



            dollyEnd.set(0, distance);



            dollyDelta.set(0, Math.pow(dollyEnd.y / dollyStart.y, scope.zoomSpeed));



            dollyIn(dollyDelta.y);



            dollyStart.copy(dollyEnd);



        }



        if (scope.enablePan) {



            var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);

            var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);



            panEnd.set(x, y);



            panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);



            pan(panDelta.x, panDelta.y);



            panStart.copy(panEnd);



        }



        scope.update();



    }



    function handleTouchEnd(event) {



        if (event.changedTouches && event.changedTouches.length > 0)

        {

            event.layerX = event.changedTouches[0].pageX;

            event.layerY = event.changedTouches[0].pageY - 70;

            scope.mouseUpCallback(event);

            scope.active = false;

            console.log("handleTouchEnd", event);

        }

        //console.log( 'handleTouchEnd' );



    }



    //

    // event handlers - FSM: listen for events and reset state

    //



    function onMouseDown(event) {



        if (scope.enabled === false) return;

        event.preventDefault();



        // console.log('controls - active', true);

        scope.active = true;

        scope.mouseDownCallback(event);



        switch (event.button) {



            case scope.mouseButtons.LEFT:



                if (event.ctrlKey || event.metaKey) {



                    if (scope.enablePan === false) return;



                    handleMouseDownPan(event);



                    state = STATE.PAN;



                } else {



                    if (scope.enableRotate === false) return;



                    handleMouseDownRotate(event);



                    state = STATE.ROTATE;



                }



                break;



            case scope.mouseButtons.MIDDLE:



                if (scope.enableZoom === false) return;



                handleMouseDownDolly(event);



                state = STATE.DOLLY;



                break;



            case scope.mouseButtons.RIGHT:



                if (scope.enablePan === false) return;



                handleMouseDownPan(event);



                state = STATE.PAN;



                break;



        }



        if (state !== STATE.NONE) {



            document.addEventListener('mousemove', onMouseMove, false);

            document.addEventListener('mouseup', onMouseUp, false);



            scope.dispatchEvent(startEvent);



        }



    }



    function onMouseMove(event) {



        if (scope.enabled === false) return;



        event.preventDefault();



        switch (state) {



            case STATE.ROTATE:



                if (scope.enableRotate === false) return;



                handleMouseMoveRotate(event);



                break;



            case STATE.DOLLY:



                if (scope.enableZoom === false) return;



                handleMouseMoveDolly(event);



                break;



            case STATE.PAN:



                if (scope.enablePan === false) return;



                handleMouseMovePan(event);



                break;



        }



    }



    function onMouseUp(event) {



        if (scope.enabled === false) return;



        handleMouseUp(event);



        document.removeEventListener('mousemove', onMouseMove, false);

        document.removeEventListener('mouseup', onMouseUp, false);



        scope.dispatchEvent(endEvent);



        state = STATE.NONE;



    }



    function onMouseWheel(event) {



        if (scope.enabled === false || scope.enableZoom === false || (state !== STATE.NONE && state !== STATE.ROTATE)) return;



        event.preventDefault();

        event.stopPropagation();



        scope.dispatchEvent(startEvent);



        handleMouseWheel(event);



        scope.dispatchEvent(endEvent);



    }



    function onKeyDown(event) {



        if (scope.enabled === false || scope.enableKeys === false || scope.enablePan === false) return;



        handleKeyDown(event);



    }



    function onTouchStart(event) {



        if (scope.enabled === false) return;



        event.preventDefault();



        switch (event.touches.length) {



            case 1: // one-fingered touch: rotate



                if (scope.enableRotate === false) return;



                this.startTouch = { x: event.changedTouches[0].clientX, y: event.changedTouches[0].clientY };
                this.cameraStartPosition = MFS.camera.position.y;


                handleTouchStartRotate(event);



                state = STATE.TOUCH_ROTATE;



                break;



            case 2: // two-fingered touch: dolly-pan



                if (scope.enableZoom === false && scope.enablePan === false) return;



                handleTouchStartDollyPan(event);



                state = STATE.TOUCH_DOLLY_PAN;



                break;



            default:



                state = STATE.NONE;



        }



        if (state !== STATE.NONE) {



            scope.dispatchEvent(startEvent);



        }



    }



    function onTouchMove(event) {



        if (scope.enabled === false) return;



        event.preventDefault();

        event.stopPropagation();



        switch (event.touches.length) {



            case 1: // one-fingered touch: rotate



                if (scope.enableRotate === false) return;

                if (state !== STATE.TOUCH_ROTATE) return; // is this needed?



                handleTouchMoveRotate(event);



                break;



            case 2: // two-fingered touch: dolly-pan



                if (scope.enableZoom === false && scope.enablePan === false) return;

                if (state !== STATE.TOUCH_DOLLY_PAN) return; // is this needed?



                handleTouchMoveDollyPan(event);



                break;



            default:



                state = STATE.NONE;



        }



        if ((event.changedTouches[0].clientY != this.startTouch.y) &&
            (MFS.manager.GetCurrentState().state == 2) &&
            (event.touches.length == 1))

        {

            var difference2 = (this.startTouch.y - event.changedTouches[0].clientY) / 100;
            //console.log("this.startTouch.y: " + this.startTouch.y );
            //console.log("event.changedTouches[0].clientY: " + event.changedTouches[0].clientY);
            //console.log("difference2: " + difference2);
            //console.log("MFS.camera.position.y : " + MFS.camera.position.y );
            MFS.camera.position.y -= difference2;
            //console.log("Updated MFS.camera.position.y : " + MFS.camera.position.y );
            //console.log(" ");
            if (MFS.camera.position.y < 0) MFS.camera.position.y = 0;
            if (MFS.camera.position.y > 90) MFS.camera.position.y = 90;
            // MFS.camera.position.y = difference;
            MFS.controls.target.y = MFS.camera.position.y;
            var lastY;
            setTimeout(() => {
                lastY = event.changedTouches[0].clientY;
            }, 1000);
            setTimeout(() => {
                if (lastY == event.changedTouches[0].clientY) {
                    this.startTouch.y = event.changedTouches[0].clientY;
                    this.cameraStartPosition = MFS.camera.position.y;
                }
            }, 1000);

            MFS.camera.updateProjectionMatrix();

            MFS.controls.update();

        }



    }



    function onTouchEnd(event) {



        if (event.changedTouches[0].clientX == this.startTouch.x && event.changedTouches[0].clientY == this.startTouch.y)

        {

            if (scope.enabled === false) return;



            handleTouchEnd(event);



            scope.dispatchEvent(endEvent);



            state = STATE.NONE;

        }

    }



    function onContextMenu(event) {



        if (scope.enabled === false) return;



        event.preventDefault();



    }



    //



    scope.domElement.addEventListener('contextmenu', onContextMenu, false);



    scope.domElement.addEventListener('mousedown', onMouseDown, false);

    scope.domElement.addEventListener('wheel', onMouseWheel, false);



    scope.domElement.addEventListener('touchstart', onTouchStart, false);

    scope.domElement.addEventListener('touchend', onTouchEnd, false);

    scope.domElement.addEventListener('touchmove', onTouchMove, false);



    window.addEventListener('keydown', onKeyDown, false);



    // force an update at start



    this.update();



};



THREE.OrbitControls.prototype = Object.create(THREE.EventDispatcher.prototype);

THREE.OrbitControls.prototype.constructor = THREE.OrbitControls;



Object.defineProperties(THREE.OrbitControls.prototype, {



    center: {



        get: function() {



            console.warn('THREE.OrbitControls: .center has been renamed to .target');

            return this.target;



        }



    },



    // backward compatibility



    noZoom: {



        get: function() {



            console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.');

            return !this.enableZoom;



        },



        set: function(value) {



            console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.');

            this.enableZoom = !value;



        }



    },



    noRotate: {



        get: function() {



            console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.');

            return !this.enableRotate;



        },



        set: function(value) {



            console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.');

            this.enableRotate = !value;



        }



    },



    noPan: {



        get: function() {



            console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.');

            return !this.enablePan;



        },



        set: function(value) {



            console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.');

            this.enablePan = !value;



        }



    },



    noKeys: {



        get: function() {



            console.warn('THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.');

            return !this.enableKeys;



        },



        set: function(value) {



            console.warn('THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.');

            this.enableKeys = !value;



        }



    },



    staticMoving: {



        get: function() {



            console.warn('THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.');

            return !this.enableDamping;



        },



        set: function(value) {



            console.warn('THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.');

            this.enableDamping = !value;



        }



    },



    dynamicDampingFactor: {



        get: function() {



            console.warn('THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.');

            return this.dampingFactor;



        },



        set: function(value) {



            console.warn('THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.');

            this.dampingFactor = value;



        }



    }



});;/**
 * dat-gui JavaScript Controller Library
 * https://github.com/dataarts/dat.gui
 *
 * Copyright 2016 Data Arts Team, Google Creative Lab
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 */
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;/**
 * @author zz85 / https://github.com/zz85
 *
 * Based on "A Practical Analytic Model for Daylight"
 * aka The Preetham Model, the de facto standard analytic skydome model
 * http://www.cs.utah.edu/~shirley/papers/sunsky/sunsky.pdf
 *
 * First implemented by Simon Wallner
 * http://www.simonwallner.at/projects/atmospheric-scattering
 *
 * Improved by Martin Upitis
 * http://blenderartists.org/forum/showthread.php?245954-preethams-sky-impementation-HDR
 *
 * Three.js integration by zz85 http://twitter.com/blurspline
*/

THREE.Sky = function () {

	var shader = THREE.Sky.SkyShader;

	var material = new THREE.ShaderMaterial( {
		fragmentShader: shader.fragmentShader,
		vertexShader: shader.vertexShader,
		uniforms: THREE.UniformsUtils.clone( shader.uniforms ),
		side: THREE.BackSide
	} );

	THREE.Mesh.call( this, new THREE.BoxBufferGeometry( 1, 1, 1 ), material );

};

THREE.Sky.prototype = Object.create( THREE.Mesh.prototype );

THREE.Sky.SkyShader = {

	uniforms: {
		luminance: { value: 1 },
		turbidity: { value: 2 },
		rayleigh: { value: 1 },
		mieCoefficient: { value: 0.005 },
		mieDirectionalG: { value: 0.8 },
		sunPosition: { value: new THREE.Vector3() }
	},

	vertexShader: [
		'uniform vec3 sunPosition;',
		'uniform float rayleigh;',
		'uniform float turbidity;',
		'uniform float mieCoefficient;',

		'varying vec3 vWorldPosition;',
		'varying vec3 vSunDirection;',
		'varying float vSunfade;',
		'varying vec3 vBetaR;',
		'varying vec3 vBetaM;',
		'varying float vSunE;',

		'const vec3 up = vec3( 0.0, 1.0, 0.0 );',

		// constants for atmospheric scattering
		'const float e = 2.71828182845904523536028747135266249775724709369995957;',
		'const float pi = 3.141592653589793238462643383279502884197169;',

		// wavelength of used primaries, according to preetham
		'const vec3 lambda = vec3( 680E-9, 550E-9, 450E-9 );',
		// this pre-calcuation replaces older TotalRayleigh(vec3 lambda) function:
		// (8.0 * pow(pi, 3.0) * pow(pow(n, 2.0) - 1.0, 2.0) * (6.0 + 3.0 * pn)) / (3.0 * N * pow(lambda, vec3(4.0)) * (6.0 - 7.0 * pn))
		'const vec3 totalRayleigh = vec3( 5.804542996261093E-6, 1.3562911419845635E-5, 3.0265902468824876E-5 );',

		// mie stuff
		// K coefficient for the primaries
		'const float v = 4.0;',
		'const vec3 K = vec3( 0.686, 0.678, 0.666 );',
		// MieConst = pi * pow( ( 2.0 * pi ) / lambda, vec3( v - 2.0 ) ) * K
		'const vec3 MieConst = vec3( 1.8399918514433978E14, 2.7798023919660528E14, 4.0790479543861094E14 );',

		// earth shadow hack
		// cutoffAngle = pi / 1.95;
		'const float cutoffAngle = 1.6110731556870734;',
		'const float steepness = 1.5;',
		'const float EE = 1000.0;',

		'float sunIntensity( float zenithAngleCos ) {',
		'	zenithAngleCos = clamp( zenithAngleCos, -1.0, 1.0 );',
		'	return EE * max( 0.0, 1.0 - pow( e, -( ( cutoffAngle - acos( zenithAngleCos ) ) / steepness ) ) );',
		'}',

		'vec3 totalMie( float T ) {',
		'	float c = ( 0.2 * T ) * 10E-18;',
		'	return 0.434 * c * MieConst;',
		'}',

		'void main() {',

		'	vec4 worldPosition = modelMatrix * vec4( position, 1.0 );',
		'	vWorldPosition = worldPosition.xyz;',

		'	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',
		'	gl_Position.z = gl_Position.w;', // set z to camera.far

		'	vSunDirection = normalize( sunPosition );',

		'	vSunE = sunIntensity( dot( vSunDirection, up ) );',

		'	vSunfade = 1.0 - clamp( 1.0 - exp( ( sunPosition.y / 450000.0 ) ), 0.0, 1.0 );',

		'	float rayleighCoefficient = rayleigh - ( 1.0 * ( 1.0 - vSunfade ) );',

		// extinction (absorbtion + out scattering)
		// rayleigh coefficients
		'	vBetaR = totalRayleigh * rayleighCoefficient;',

		// mie coefficients
		'	vBetaM = totalMie( turbidity ) * mieCoefficient;',

		'}'
	].join( '\n' ),

	fragmentShader: [
		'varying vec3 vWorldPosition;',
		'varying vec3 vSunDirection;',
		'varying float vSunfade;',
		'varying vec3 vBetaR;',
		'varying vec3 vBetaM;',
		'varying float vSunE;',

		'uniform float luminance;',
		'uniform float mieDirectionalG;',

		'const vec3 cameraPos = vec3( 0.0, 0.0, 0.0 );',

		// constants for atmospheric scattering
		'const float pi = 3.141592653589793238462643383279502884197169;',

		'const float n = 1.0003;', // refractive index of air
		'const float N = 2.545E25;', // number of molecules per unit volume for air at
									// 288.15K and 1013mb (sea level -45 celsius)

		// optical length at zenith for molecules
		'const float rayleighZenithLength = 8.4E3;',
		'const float mieZenithLength = 1.25E3;',
		'const vec3 up = vec3( 0.0, 1.0, 0.0 );',
		// 66 arc seconds -> degrees, and the cosine of that
		'const float sunAngularDiameterCos = 0.999956676946448443553574619906976478926848692873900859324;',

		// 3.0 / ( 16.0 * pi )
		'const float THREE_OVER_SIXTEENPI = 0.05968310365946075;',
		// 1.0 / ( 4.0 * pi )
		'const float ONE_OVER_FOURPI = 0.07957747154594767;',

		'float rayleighPhase( float cosTheta ) {',
		'	return THREE_OVER_SIXTEENPI * ( 1.0 + pow( cosTheta, 2.0 ) );',
		'}',

		'float hgPhase( float cosTheta, float g ) {',
		'	float g2 = pow( g, 2.0 );',
		'	float inverse = 1.0 / pow( 1.0 - 2.0 * g * cosTheta + g2, 1.5 );',
		'	return ONE_OVER_FOURPI * ( ( 1.0 - g2 ) * inverse );',
		'}',

		// Filmic ToneMapping http://filmicgames.com/archives/75
		'const float A = 0.15;',
		'const float B = 0.50;',
		'const float C = 0.10;',
		'const float D = 0.20;',
		'const float E = 0.02;',
		'const float F = 0.30;',

		'const float whiteScale = 1.0748724675633854;', // 1.0 / Uncharted2Tonemap(1000.0)

		'vec3 Uncharted2Tonemap( vec3 x ) {',
		'	return ( ( x * ( A * x + C * B ) + D * E ) / ( x * ( A * x + B ) + D * F ) ) - E / F;',
		'}',


		'void main() {',
		// optical length
		// cutoff angle at 90 to avoid singularity in next formula.
		'	float zenithAngle = acos( max( 0.0, dot( up, normalize( vWorldPosition - cameraPos ) ) ) );',
		'	float inverse = 1.0 / ( cos( zenithAngle ) + 0.15 * pow( 93.885 - ( ( zenithAngle * 180.0 ) / pi ), -1.253 ) );',
		'	float sR = rayleighZenithLength * inverse;',
		'	float sM = mieZenithLength * inverse;',

		// combined extinction factor
		'	vec3 Fex = exp( -( vBetaR * sR + vBetaM * sM ) );',

		// in scattering
		'	float cosTheta = dot( normalize( vWorldPosition - cameraPos ), vSunDirection );',

		'	float rPhase = rayleighPhase( cosTheta * 0.5 + 0.5 );',
		'	vec3 betaRTheta = vBetaR * rPhase;',

		'	float mPhase = hgPhase( cosTheta, mieDirectionalG );',
		'	vec3 betaMTheta = vBetaM * mPhase;',

		'	vec3 Lin = pow( vSunE * ( ( betaRTheta + betaMTheta ) / ( vBetaR + vBetaM ) ) * ( 1.0 - Fex ), vec3( 1.5 ) );',
		'	Lin *= mix( vec3( 1.0 ), pow( vSunE * ( ( betaRTheta + betaMTheta ) / ( vBetaR + vBetaM ) ) * Fex, vec3( 1.0 / 2.0 ) ), clamp( pow( 1.0 - dot( up, vSunDirection ), 5.0 ), 0.0, 1.0 ) );',

		// nightsky
		'	vec3 direction = normalize( vWorldPosition - cameraPos );',
		'	float theta = acos( direction.y ); // elevation --> y-axis, [-pi/2, pi/2]',
		'	float phi = atan( direction.z, direction.x ); // azimuth --> x-axis [-pi/2, pi/2]',
		'	vec2 uv = vec2( phi, theta ) / vec2( 2.0 * pi, pi ) + vec2( 0.5, 0.0 );',
		'	vec3 L0 = vec3( 0.1 ) * Fex;',

		// composition + solar disc
		'	float sundisk = smoothstep( sunAngularDiameterCos, sunAngularDiameterCos + 0.00002, cosTheta );',
		'	L0 += ( vSunE * 19000.0 * Fex ) * sundisk;',

		'	vec3 texColor = ( Lin + L0 ) * 0.04 + vec3( 0.0, 0.0003, 0.00075 );',

		'	vec3 curr = Uncharted2Tonemap( ( log2( 2.0 / pow( luminance, 4.0 ) ) ) * texColor );',
		'	vec3 color = curr * whiteScale;',

		'	vec3 retColor = pow( color, vec3( 1.0 / ( 1.2 + ( 1.2 * vSunfade ) ) ) );',

		'	gl_FragColor = vec4( retColor, 1.0 );',

		'}'
	].join( '\n' )

};
;// about highways: https://help.openstreetmap.org/questions/30692/export-only-roads
// queries online: http://overpass-turbo.eu/
/*
 Building address and location
 Cityscape Residences / Kimpton Hotel Palomar Phoenix
 2 E Jefferson St, Phoenix, AZ 85004
 33.447347, -112.073315
 */




var OsmApi = {

    API_URL : "https://overpass.kumi.systems/api/interpreter?data=[out:json];",

    YARD_TO_METER : 0.9144,
    FOOT_TO_METER : 0.3048,
    INCH_TO_METER : 0.0254,
    METERS_PER_LEVEL : 3,
    DEFAULT_HEIGHT : 5,

    clockwise : 'CW',
    counterClockwise : 'CCW',

    RAD_TO_DEGREES : 180 / Math.PI,

}

OsmApi.materialColors = {
        brick:'#cc7755',
        bronze:'#ffeecc',
        canvas:'#fff8f0',
        concrete:'#999999',
        copper:'#a0e0d0',
        glass:'#e8f8f8',
        gold:'#ffcc00',
        plants:'#009933',
        metal:'#aaaaaa',
        panel:'#fff8f0',
        plaster:'#999999',
        roof_tiles:'#f08060',
        silver:'#af6161',
        slate:'#666666',
        stone:'#996666',
        tar_paper:'#333333',
        wood:'#deb887'
};

OsmApi.baseMaterials = {
        asphalt:'tar_paper',
        bitumen:'tar_paper',
        block:'stone',
        bricks:'brick',
        glas:'glass',
        glassfront:'glass',
        grass:'plants',
        masonry:'stone',
        granite:'stone',
        panels:'panel',
        paving_stones:'stone',
        plastered:'plaster',
        rooftiles:'roof_tiles',
        roofingfelt:'tar_paper',
        sandstone:'stone',
        sheet:'canvas',
        sheets:'canvas',
        shingle:'tar_paper',
        shingles:'tar_paper',
        slates:'slate',
        steel:'metal',
        tar:'tar_paper',
        tent:'canvas',
        thatch:'plants',
        tile:'roof_tiles',
        tiles:'roof_tiles'
};


// default building color
OsmApi.color = OsmApi.materialColors.slate;

// if colors coming from osmApi json should be applied
OsmApi.ignoreOsmDataColors = true;


OsmApi.getSurroundings = function(params, createBuildingCallback){

    OsmApi.searchByBoundingBox(params, function(data){
        OsmApi.parse(data, function(items){
            OsmApi.build(items, [params.lng, params.lat], null, createBuildingCallback);
        });
    });

}

OsmApi.getRoadsData = function(params, createBuildingCallback){

    OsmApi.roads.get(params, function(data){
        OsmApi.roads.parse(data, function(items){
            OsmApi.roads.build(items, [params.lng, params.lat], null, createBuildingCallback);
        });
    });

}

OsmApi.roads = {

    color: OsmApi.materialColors.canvas,

    // get roads data from api
    get : function(params, callback){

        var s = OsmApi.querySearchRoads();

        var params2 = {
            w: params.lng - params.size,
            n: params.lat + params.size,
            e: params.lng + params.size,
            s: params.lat - params.size,
        }

        var queryString = OsmApi.prepareParams(s, params2);
        var url = OsmApi.createApiUrl(queryString);

        OsmApi.xhr( url, callback );

    },


    // parse roads data
    parse : function(osmData, callback){

        console.log('incoming osmData', osmData);

        var scope = OsmApi;
        var _nodes = {},
            _ways = {},
            MAP_DATA = [];

        var missing = [];

        var item;
        for ( var i = 0, len = osmData.elements.length; i < len; i++ ) {
            item = osmData.elements[i];
            switch ( item.type ) {
                case 'node': processNode( item ); break;
                case 'way': processWay( item ); break;
                case 'relation': processRelation( item ); break;
            }
        }

        if(callback){
            console.log('Data parsed', MAP_DATA);
            console.log('missing nodes', missing.length);

            doubleCheckMissingNodes(missing);

            callback(MAP_DATA);
        }else{
            console.warn('Add callback to parser');
        }

        function doubleCheckMissingNodes(missing){

            var notFound = 0;
            var found = false;

            for(var node in missing) {
                found = false;
                for (var i = 0, len = osmData.elements.length; i < len; i++) {
                    item = osmData.elements[i];
                    if (item.id === node) {
                        console.log('FOUND MISSING', item.id, item);
                        found = true;
                    }
                }
                if(!found) notFound++;

            }

            console.log('double check - not found', notFound);
        }

        // ok
        function processNode(node) {
            _nodes[node.id] = [node.lat, node.lon];
        }


        // not
        function processWay(way) {

            if (isRoad(way)) {
                var item, footprint;
                if ( footprint = getFootprint(way.nodes) ) {
                    item = filterItem(way, footprint);
                    MAP_DATA.push(item);
                }
                return;
            }

            var tags = way.tags;
            // if (!tags || (!tags.highway && !tags.railway && !tags.landuse)) {
            // if (!tags || (!tags.railway && !tags.crossing)) {
            if (!tags) { // not sure
                _ways[way.id] = way;
                console.log('no tags?', way.id, way);
            }
        }

        function getFootprint(points) {
            if (!points) {
                return;
            }

            var footprint = [], p;

            // BUG - not all nodes can be found...
            // console.log('points', points);
            // console.log('_nodes', _nodes);
            for (var i = 0, il = points.length; i < il; i++) {
                if(_nodes.hasOwnProperty(points[i])) {
                    p = _nodes[points[i]];
                    footprint.push(p[0], p[1]);
                }else{
                    missing.push(points[i]);
                }
            }

            // do not close polygon yet
            if (footprint[footprint.length-2] !== footprint[0] && footprint[footprint.length-1] !== footprint[1]) {
                footprint.push(footprint[0], footprint[1]);
            }

            // need at least starting point A (x,y) and end point B
            if (footprint.length < 8) {
                return;
            }

            return footprint;
        }

        function processRelation(relation) {
            var relationWays, outerWay, holes = [],
                item, relItem, outerFootprint, innerFootprint;

            // TODO - FULL check if its not a road??
            if (!isRoad(relation)){
                return;
            }

            if ((relationWays = getRelationWays(relation.members))) {
                relItem = filterItem(relation);
                if ((outerWay = relationWays.outer)) {
                    if (outerFootprint = getFootprint(outerWay.nodes)) {
                        item = filterItem(outerWay, outerFootprint);
                        for (var i = 0, il = relationWays.inner.length; i < il; i++) {
                            if ((innerFootprint = getFootprint(relationWays.inner[i].nodes))) {
                                holes.push( scope.makeWinding(innerFootprint, scope.counterClockwise) );
                            }
                        }
                        if (holes.length) {
                            item.holes = holes;
                        }
                        MAP_DATA.push( mergeItems(item, relItem) );
                    }
                }
            }
        }

        function mergeItems(dst, src) {
            for (var p in src) {
                if (src.hasOwnProperty(p)) {
                    dst[p] = src[p];
                }
            }
            return dst;
        }

        function isRoad(data){
            var tags = data.tags;
            return (tags && tags.highway); // temp test
            // return (tags && tags.highway && !tags.crossing && !tags.footway); // dont need to draw: crossing, various signs...
        }

        function parseProperties(prop){

            var item = {};
            prop = prop || {};

            item.lanes = 1;
            if(prop.lanes) item.lanes = parseInt(prop.lanes);
            if(prop.name) item.name = prop.name;

            return item;
        }

        function filterItem(item, footprint) {

            var res = parseProperties(item.tags);
            res.tags = item.tags;  // Keeping the raw tags too
            if (item.id) {
                res.id = item.id;
            }

            if (footprint) {
                res.footprint = scope.makeWinding(footprint, scope.clockwise);
            }

            return res;
        }

        function getRelationWays(members) {
            var m, outer, inner = [];
            for (var i = 0, il = members.length; i < il; i++) {
                m = members[i];
                if (m.type !== 'way' || !_ways[m.ref]) {
                    continue;
                }
                if (!m.role || m.role === 'outer') {
                    outer = _ways[m.ref];
                    continue;
                }
                if (m.role === 'inner' || m.role === 'enclave') {
                    inner.push(_ways[m.ref]);
                    continue;
                }
            }

            //  if (outer && outer.tags) {
            if (outer) { // allows tags to be attached to relation - instead of outer way
                return { outer:outer, inner:inner };
            }
        }

    },

    // build roads
    build : function(items, origin, options, addToSceneCallback){ // createRoadCallback

        if(typeof origin === 'undefined' || origin === null){
            console.warn('!!! OsmApi.build function REQUIRES origin as array of two parameters!', origin);
            return;
        }

        var options = options || {};
        var _origin = lonLatToWorld( origin[0], origin[1] );


        var road, road2;
        for(var i=0, len=items.length; i < len; i++){

            road = makeRoadGeometry3( items[i] );

            // if(road){
            //
            //     var singleMaterial = new THREE.MeshLambertMaterial( { color: OsmApi.roads.color, wireframe: false } );
            //     var mesh = new THREE.Mesh( road, singleMaterial );
            //
            //     mesh._item = items[i];
            //     addToSceneCallback(mesh);
            // }
            //
            // continue;

            road = makeRoadGeometry( items[i] );
            if(road){

                var singleMaterial = new THREE.MeshLambertMaterial({color: OsmApi.roads.color}); // single material, because surrounding buildings are one color anyway
                var mesh = new THREE.Mesh( road, singleMaterial );

                // var singleMaterial = new THREE.LineBasicMaterial({
                //     color: OsmApi.roads.color,
                //     linewidth: road._roadWidth,
                // });
                // var geometry = new THREE.Geometry();
                // geometry.vertices = road.vertices;
                // var mesh = new THREE.Line( geometry, singleMaterial );

                mesh._item = items[i];
                addToSceneCallback(mesh);

            }



            // road2 = makeRoadGeometry2( items[i] );
            // if(road2){
            //
            //     var singleMaterial = new THREE.LineBasicMaterial({
            //         color: OsmApi.roads.color,
            //         linewidth: road2.item.lanes * 10,
            //     });
            //     console.log('check lanes', road2.item.lanes);
            //     var mesh = new THREE.Line( road2.geom, singleMaterial );
            //
            //     addToSceneCallback(mesh);
            //     // break;
            // }


        }

        function makeRoadGeometry2( item ){

            var geom = new THREE.Geometry();
            var pos, vert;

            for ( var i = 0, last = item.footprint.length-1; i < last; i+=2 ) {
                pos = lonLatToScene( item.footprint[i+1], item.footprint[i] );
                vert = new THREE.Vector3(pos.x, 0, pos.y);
                geom.vertices.push(vert);
            }

            return {
                geom: geom,
                item: item,
            }
        }

        function makeRoadGeometry3(item){

            var pos, vert;
            var vertices = [];
            for ( var i = 0, last = item.footprint.length-1; i < last; i+=2 ) {
                pos = lonLatToScene( item.footprint[i+1], item.footprint[i] );
                vert = new THREE.Vector3(pos.x, 0, pos.y);
                vertices.push(vert);
            }

            var closedSpline = new THREE.CatmullRomCurve3(vertices);
            closedSpline.type = 'catmullrom'; // catmullrom, centripetal, chordal
            closedSpline.closed = true;

            var extrudeSettings = {
                steps           : 100,
                bevelEnabled    : false,
                extrudePath     : closedSpline
            };

            var pts = [], count = 3;
            for ( var i = 0; i < count; i ++ ) {
                var l = 10; // 20
                var a = 2 * i / count * Math.PI;
                pts.push( new THREE.Vector2 ( Math.cos( a ) * l, Math.sin( a ) * l ) );
            }
            var shape = new THREE.Shape( pts );

            var extrudeSettings = {
                steps           : 100,
                bevelEnabled    : false,
                extrudePath     : closedSpline
            };

            var geometry = new THREE.ExtrudeGeometry( shape, extrudeSettings );

            return geometry;
        }

        function makeRoadGeometry( item ){

            // Create a path
            var pointX, pointY, extrudePath, eg,
                path, shapes,
                bldgHeight = item.height,
                pathPoints = [];

            for ( var i = 0, last = item.footprint.length-1; i < last; i+=2 ) {
                pathPoints.push( lonLatToScene( item.footprint[i+1], item.footprint[i] ) );
            }

            shapes = new THREE.Shape(pathPoints);
            extrudePath = new THREE.CurvePath();
            extrudePath.add( new THREE.LineCurve3( new THREE.Vector3(0,0,0), new THREE.Vector3(0,5,0) ) );
            //
            eg = new THREE.ExtrudeGeometry( shapes, {
                extrudePath: extrudePath,
                material: 0,
            });
            //
            eg._zShapePoints = pathPoints;
            eg._zHeight = bldgHeight; // DIFFERENT THAN BUILDINGS - how wide is the road here
            eg._roadWidth = item.lanes * 10; // TODO add global road per line width

            return eg;
        }

        function lonLatToScene( lon, lat ) {
            var point = lonLatToWorld( lon, lat );
            return new THREE.Vector2( _origin[1] - point[1], _origin[0] - point[0] ); // default
        }

        function lonLatToWorld( lon, lat ) {
            var x, y, pointX, pointY, latRad, mercN,
                worldWidth = 40075000,
                worldHeight = 40008000;

            x = ( lon + 180 ) * ( worldWidth / 360);
            latRad = lat*Math.PI/180;
            mercN = Math.log( Math.tan((Math.PI/4)+(latRad/2)));
            y = (worldHeight/2)-(worldHeight*mercN/(2*Math.PI));
            return [ x, y ]
        }

        function createMesh( geom, osmData ) {
            var face,
                mats = [],
                wci = 0,
                rci = 0;
            mats.push( new THREE.MeshLambertMaterial( {color: OsmApi.roads.color } ) );
            // for ( var i=0, len=geom.faces.length; i < len; i++ ) {
            //     face = geom.faces[i];
            //     ( face.normal.y === 1 ) ? face.materialIndex = rci : face.materialIndex = wci;
            // }
            var m = new THREE.Mesh( geom, new THREE.MeshFaceMaterial( mats ) );
            m.footprint = osmData.footprint;
            return m;
        }
    }

}


// OsmApi.createRoads = function(geom, callback, osmData){
//
//     var face,
//         mats = [],
//         wci = 0,
//         rci = 0;
//
//     for ( var i=0, len=geom.faces.length; i < len; i++ ) {
//         face = geom.faces[i];
//         ( face.normal.y === 1 ) ? face.materialIndex = rci : face.materialIndex = wci;
//     }
//
//
//     // var singleMaterial = new THREE.MeshLambertMaterial({color: OsmApi.color}); // single material, because surrounding buildings are one color anyway
//     // var mesh = new THREE.Mesh( geom, singleMaterial );
//     // var mesh = new THREE.Line( geom, singleMaterial );
//     var singleMaterial = new THREE.LineBasicMaterial({
//         color: OsmApi.roads.color,
//         linewidth: geom._roadWidth,
//     });
//     var geometry = new THREE.Geometry();
//     geometry.vertices = geom.vertices;
//     var mesh = new THREE.Line( geometry, singleMaterial );
//
//     if(callback) callback(mesh);
//     else return mesh;
//
// }

OsmApi.createBuilding = function(geom, callback, osmData){

    var face,
        mats = [],
        wci = 0,
        rci = 0;

    // if we plan to color surrounding buildings, then multi material cvould be a good idea (for example - roof colors, different wall colors..)
    // if( ! OsmApi.ignoreOsmDataColors ) {
    //
    //     if (osmData.wallColor) {
    //         mats.push(new THREE.MeshLambertMaterial({color: osmData.wallColor}));
    //     } else {
    //         mats.push(new THREE.MeshLambertMaterial({color: OsmApi.color}));
    //     }
    //     if (osmData.roofColor) {
    //         mats.push(new THREE.MeshLambertMaterial({color: osmData.roofColor}));
    //         rci = 1;
    //     }
    // }else{
    //     mats.push(new THREE.MeshLambertMaterial({color: OsmApi.color}));
    // }

    for ( var i=0, len=geom.faces.length; i < len; i++ ) {
        face = geom.faces[i];
        ( face.normal.y === 1 ) ? face.materialIndex = rci : face.materialIndex = wci;
    }

    var singleMaterial = new THREE.MeshLambertMaterial({color: OsmApi.color}); // single material, because surrounding buildings are one color anyway
    var mesh = new THREE.Mesh( geom, singleMaterial );

    if(callback) callback(mesh);
    else return mesh;
}


OsmApi.prepareParams = function(queryString, param){
    return queryString.replace(/\{ *([\w_]+) *\}/g, function(tag, key) {
        return param[key] || tag;
    });
}

OsmApi.createApiUrl = function(queryString){
    return OsmApi.API_URL +"(" + queryString + ");out;"
}



OsmApi.querySearchRoads = function(){

    // return "way['highway'='primary']({s},{w},{n},{e});";

    var highwayIncluded = [
        "highway",
        "highway=primary",
        "highway=secondary",
        "highway=residential",
        "highway=residential",
        "highway=tertiary", // cross street
        "highway=unclassified", // minor road
        "highway=service", // minor road
    ];

    var highwayExluded = [
        "highway!=footway", // walk way - too small to display??
        "highway!=path", // some kind of a path - too small? walking path, no vehicles
    ];


    return 'node'+
            '["highway"]'+
            '["highway"!="footway"]'+
            '["highway"!="pedestrian"]'+
            '["-highway"!="path"]'+
            '({s},{w},{n},{e});'+
        'way'+
            '["highway"]'+
            '["highway"!="footway"]'+
            '["highway"!="pedestrian"]'+
            '["-highway"!="path"]'+
            '({s},{w},{n},{e});'+
        'relation'+
            '["highway"]'+
            '["highway"!="footway"]'+
            '["highway"!="pedestrian"]'+
            '["-highway"!="path"]'+
            '({s},{w},{n},{e});';
}

OsmApi.querySearchBuildings = function(){

    return "way['building']({s},{w},{n},{e});" +
        "node(w);" +
        "way['building:part'='yes']({s},{w},{n},{e});" +
        "node(w);" +
        "relation['building']({s},{w},{n},{e});" +
        "way(r);" +
        "node(w);";

    // return "way[%22building%22]({s},{w},{n},{e});" +
    //     "node(w);" +
    //     "way[%22building:part%22=%22yes%22]({s},{w},{n},{e});" +
    //     "node(w);" +
    //     "relation[%22building%22]({s},{w},{n},{e});" +
    //     "way(r);" +
    //     "node(w);";
}

/**
 *
 * @param center (object) => { lat: y, lng: x }
 * @param callback
 */
OsmApi.searchByBoundingBox = function(params, callback){

    var s = this.querySearchBuildings();

    var params2 = {
        w: params.lng - params.size,
        n: params.lat + params.size,
        e: params.lng + params.size,
        s: params.lat - params.size,
    }

    console.log('params2', params2.n, params2.w, params2.s, params2.e);

    var queryString = OsmApi.prepareParams(s, params2);
    var url = OsmApi.createApiUrl(queryString);

    OsmApi.xhr( url, callback );
}


OsmApi.xhr = function(url, callback){

    console.log('incoming url', url);

    var req = new XMLHttpRequest();

    url = url.replace(/\{ *([\w_]+) *\}/g, function(tag, key) {
        return param[key] || tag;
    });

    req.onerror = function(resp) {
        console.warn('xhr error', resp);
    };

    req.ontimeout = function(resp) {
        console.warn('xhr timeout', resp);
    };

    req.onprogress = function(){};
    req.onload = function() {};

    req.onreadystatechange = function() {

        if (req.readyState !== 4) {
            return;
        }
        if (!req.status || req.status < 200 || req.status > 299) {
            console.warn('bad status', req.status);
            return;
        }
      console.log('req', req)
        if (callback && req.responseText) {
            callback( JSON.parse(req.responseText) );
        }else{
            console.warn('request failed', req);
        }
    }

    req.open('GET', url);
    req.send(null);

}

OsmApi.parse = function(osmData, callback){

    var scope = this;
    var _nodes = {},
        _ways = {},
        MAP_DATA = [];


    var item;
    for ( var i = 0, len = osmData.elements.length; i < len; i++ ) {
        item = osmData.elements[i];
        switch ( item.type ) {
            case 'node': processNode( item ); break;
            case 'way': processWay( item ); break;
            case 'relation': processRelation( item ); break;
        }
    }

    if(callback){
        console.log('Data parsed', MAP_DATA);
        callback(MAP_DATA);
    }else{
        console.warn('Add callback to parser');
    }


    function processNode(node) {
        _nodes[node.id] = [node.lat, node.lon];
    }


    function processWay(way) {
        if (isBuilding(way)) {
            var item, footprint;
            if ( footprint = getFootprint(way.nodes) ) {
                item = filterItem(way, footprint);
                MAP_DATA.push(item);
            }
            return;
        }

        var tags = way.tags;
        if (!tags || (!tags.highway && !tags.railway && !tags.landuse)) {
            _ways[way.id] = way;
        }
    }

    function getFootprint(points) {
        if (!points) {
            return;
        }

        var footprint = [], p;
        // console.log('points', points);
        for (var i = 0, il = points.length; i < il; i++) {
            p = _nodes[ points[i] ];
            footprint.push(p[0], p[1]);
        }

        // do not close polygon yet
        if (footprint[footprint.length-2] !== footprint[0] && footprint[footprint.length-1] !== footprint[1]) {
            footprint.push(footprint[0], footprint[1]);
        }

        // can't span a polygon with just 2 points (+ start & end)
        if (footprint.length < 8) {
            return;
        }

        return footprint;
    }

    function processRelation(relation) {
        var relationWays, outerWay, holes = [],
            item, relItem, outerFootprint, innerFootprint;
        if (!isBuilding(relation) ||
            (relation.tags.type !== 'multipolygon' && relation.tags.type !== 'building') ) {
            return;
        }

        if ((relationWays = getRelationWays(relation.members))) {
            relItem = filterItem(relation);
            if ((outerWay = relationWays.outer)) {
                if (outerFootprint = getFootprint(outerWay.nodes)) {
                    item = filterItem(outerWay, outerFootprint);
                    for (var i = 0, il = relationWays.inner.length; i < il; i++) {
                        if ((innerFootprint = getFootprint(relationWays.inner[i].nodes))) {
                            holes.push( scope.makeWinding(innerFootprint, scope.counterClockwise) );
                        }
                    }
                    if (holes.length) {
                        item.holes = holes;
                    }
                    MAP_DATA.push( mergeItems(item, relItem) );
                }
            }
        }
    }

    function mergeItems(dst, src) {
        for (var p in src) {
            if (src.hasOwnProperty(p)) {
                dst[p] = src[p];
            }
        }
        return dst;
    }

    function isBuilding(data) {
        var tags = data.tags;
        return (tags && !tags.landuse && (tags.building || tags['building:part']) && (!tags.layer || tags.layer >= 0));
    }

    function filterItem(item, footprint) {
        var res = scope.alignProperties(item.tags);
        res.tags = item.tags;  // Keeping the raw tags too
        if (item.id) {
            res.id = item.id;
        }

        if (footprint) {
            res.footprint = scope.makeWinding(footprint, scope.clockwise);
        }

        if (res.shape === 'cone' || res.shape === 'cylinder') {
            res.radius = scope.getRadius(res.footprint);
        }

        return res;
    }

    function getRelationWays(members) {
        var m, outer, inner = [];
        for (var i = 0, il = members.length; i < il; i++) {
            m = members[i];
            if (m.type !== 'way' || !_ways[m.ref]) {
                continue;
            }
            if (!m.role || m.role === 'outer') {
                outer = _ways[m.ref];
                continue;
            }
            if (m.role === 'inner' || m.role === 'enclave') {
                inner.push(_ways[m.ref]);
                continue;
            }
        }

        //  if (outer && outer.tags) {
        if (outer) { // allows tags to be attached to relation - instead of outer way
            return { outer:outer, inner:inner };
        }
    }

}

OsmApi.build = function(items, origin, options, createBuildingCallback){

    if(typeof origin === 'undefined' || origin === null){
        console.warn('!!! OsmApi.build function REQUIRES origin as array of two parameters!', origin);
        return;
    }

    var options = options || {};
    var _origin = lonLatToWorld( origin[0], origin[1] );

    var bldg;

    for ( var i=0, len=items.length; i < len; i++ ) {
        bldg = makeBuildingGeometry( items[i] );

        // console.log('building geometry', bldg );

        if (bldg) {
            if(createBuildingCallback){
                createBuildingCallback(bldg, items[i]);
            }

            // break; // in case we only need one building/shape
        }
    }


    function makeBuildingGeometry( item ) {

        // Create a path
        var pointX, pointY, extrudePath, eg,
            path, shapes,
            bldgHeight = item.height,
            pathPoints = [];

        // dont need this conversion on new three.js??
        for ( var i = 0, last = item.footprint.length-1; i < last; i+=2 ) {
            pathPoints.push( lonLatToScene( item.footprint[i+1], item.footprint[i] ) );
        }

        shapes = new THREE.Shape(pathPoints);

        extrudePath = new THREE.CurvePath();
        extrudePath.add( new THREE.LineCurve3( new THREE.Vector3(0,0,0), new THREE.Vector3(0,bldgHeight,0) ) );

        eg = new THREE.ExtrudeGeometry( shapes, {
            extrudePath: extrudePath,
            material: 0
        });

        eg._zShapePoints = pathPoints;
        eg._zHeight = bldgHeight;

        return eg;

    }

    function lonLatToScene( lon, lat ) {
        var point = lonLatToWorld( lon, lat );
        // This looks weird, and it is kind of a hack, but it's done because of the way THREE.ExtrudeGeometry converts
        // Vector2 x,y coordinates into x,z coordinates in Vector3 objects.  +x +y goes to -z,-x.  This effectively rotates
        // the geometries, putting them in the correct quadrant.   Doing an actual rotation might be cleaner, but, well.
        return new THREE.Vector2( _origin[1] - point[1], _origin[0] - point[0] );
    }

    function lonLatToWorld( lon, lat ) {
        var x, y, pointX, pointY, latRad, mercN,
            worldWidth = 40075000,
            worldHeight = 40008000;

        x = ( lon + 180 ) * ( worldWidth / 360);
        latRad = lat*Math.PI/180;
        mercN = Math.log( Math.tan((Math.PI/4)+(latRad/2)));
        y = (worldHeight/2)-(worldHeight*mercN/(2*Math.PI));
        return [ x, y ]
    }

    function createMesh( geom, osmData ) {
        //	return new THREE.Mesh( geom, new THREE.MeshLambertMaterial() );
        var face,
            mats = [],
            wci = 0,
            rci = 0;
        if ( osmData.wallColor ) {
            mats.push( new THREE.MeshLambertMaterial( {color: osmData.wallColor }) );
        } else {
            mats.push( new THREE.MeshLambertMaterial( {color: OsmApi.color } ) );
        }
        if ( osmData.roofColor ) {
            mats.push( new THREE.MeshLambertMaterial( {color: osmData.roofColor }) );
            rci = 1;
        }
        for ( var i=0, len=geom.faces.length; i < len; i++ ) {
            face = geom.faces[i];
            ( face.normal.y === 1 ) ? face.materialIndex = rci
                : face.materialIndex = wci;
        }
        var m = new THREE.Mesh( geom, new THREE.MeshFaceMaterial( mats ) );
        m.footprint = osmData.footprint;
        return m;
    }

}



OsmApi.makeWinding = function(points, direction){

    var scope = this;

    var winding = getWinding(points);
    if (winding === direction) {
        return points;
    }
    var revPoints = [];
    for (var i = points.length-2; i >= 0; i -= 2) {
        revPoints.push(points[i], points[i+1]);
    }
    return revPoints;

    function getWinding(points) {
        var x1, y1, x2, y2,
            a = 0,
            i, il;
        for (i = 0, il = points.length-3; i < il; i += 2) {
            x1 = points[i];
            y1 = points[i+1];
            x2 = points[i+2];
            y2 = points[i+3];
            a += x1*y2 - x2*y1;
        }
        return (a/2) > 0 ? scope.clockwise : scope.counterClockwise;
    }
}
OsmApi.getRadius = function(points){

    var minLat = 90, maxLat = -90;
    for (var i = 0, il = points.length; i < il; i += 2) {
        minLat = Math.min(minLat, points[i]);
        maxLat = Math.max(maxLat, points[i]);
    }

    return (maxLat-minLat) / OsmApi.RAD_TO_DEGREES * 6378137 / 2 <<0; // 6378137 = Earth radius

}
OsmApi.toMeters = function(str){

    str = '' + str;
    var value = parseFloat(str);
    if (value === str) {
        return value <<0;
    }
    if (~str.indexOf('m')) {
        return value <<0;
    }
    if (~str.indexOf('yd')) {
        return value*OsmApi.YARD_TO_METER <<0;
    }
    if (~str.indexOf('ft')) {
        return value*OsmApi.FOOT_TO_METER <<0;
    }
    if (~str.indexOf('\'')) {
        var parts = str.split('\'');
        var res = parts[0]*OsmApi.FOOT_TO_METER + parts[1]*OsmApi.INCH_TO_METER;
        return res <<0;
    }
    return value <<0;

}

OsmApi.getMaterialColor = function(str){

    str = str.toLowerCase();
    if (str[0] === '#') {
        return str;
    }
    return OsmApi.materialColors[OsmApi.baseMaterials[str] || str] || null;

}

OsmApi.alignProperties = function(prop){


    var item = {};

    prop = prop || {};

    item.height = OsmApi.toMeters(prop.height);
    if (!item.height) {
        if (prop['building:height']) {
            item.height = OsmApi.toMeters(prop['building:height']);
        }
        if (prop.levels) {
            item.height = prop.levels*OsmApi.METERS_PER_LEVEL <<0;
        }
        if (prop['building:levels']) {
            item.height = prop['building:levels']*OsmApi.METERS_PER_LEVEL <<0;
        }
        if (!item.height) {
            item.height = OsmApi.DEFAULT_HEIGHT;
        }
    }

    item.minHeight = OsmApi.toMeters(prop.min_height);
    if (!item.min_height) {
        if (prop['building:min_height']) {
            item.minHeight = OsmApi.toMeters(prop['building:min_height']);
        }
        if (prop.min_level) {
            item.minHeight = prop.min_level*OsmApi.METERS_PER_LEVEL <<0;
        }
        if (prop['building:min_level']) {
            item.minHeight = prop['building:min_level']*OsmApi.METERS_PER_LEVEL <<0;
        }
    }

    // not needed unless we actually decide to color surroundings
    // item.wallColor = prop.wallColor || prop.color;
    // if (!item.wallColor) {
    //     if (prop.color) {
    //         item.wallColor = prop.color;
    //     }
    //     if (prop['building:material']) {
    //         item.wallColor = OsmApi.getMaterialColor(prop['building:material']);
    //     }
    //     if (prop['building:facade:material']) {
    //         item.wallColor = OsmApi.getMaterialColor(prop['building:facade:material']);
    //     }
    //     if (prop['building:cladding']) {
    //         item.wallColor = OsmApi.getMaterialColor(prop['building:cladding']);
    //     }
    //     // wall color
    //     if (prop['building:color']) {
    //         item.wallColor = prop['building:color'];
    //     }
    //     if (prop['building:colour']) {
    //         item.wallColor = prop['building:colour'];
    //     }
    // }

    // not needed unless we actually decide to color surroundings
    // item.roofColor = prop.roofColor;
    // if (!item.roofColor) {
    //     if (prop['roof:material']) {
    //         item.roofColor = OsmApi.getMaterialColor(prop['roof:material']);
    //     }
    //     if (prop['building:roof:material']) {
    //         item.roofColor = OsmApi.getMaterialColor(prop['building:roof:material']);
    //     }
    //     // roof color
    //     if (prop['roof:color']) {
    //         item.roofColor = prop['roof:color'];
    //     }
    //     if (prop['roof:colour']) {
    //         item.roofColor = prop['roof:colour'];
    //     }
    //     if (prop['building:roof:color']) {
    //         item.roofColor = prop['building:roof:color'];
    //     }
    //     if (prop['building:roof:colour']) {
    //         item.roofColor = prop['building:roof:colour'];
    //     }
    // }

    switch (prop['building:shape']) {
        case 'cone':
        case 'cylinder':
            item.shape = prop['building:shape'];
            break;

        case 'dome':
            item.shape = 'dome';
            break;

        case 'sphere':
            item.shape = 'cylinder';
            break;
    }

    if ((prop['roof:shape'] === 'cone' || prop['roof:shape'] === 'dome') && prop['roof:height']) {
        item.shape = 'cylinder';
        item.roofShape = prop['roof:shape'];
        item.roofHeight = OsmApi.toMeters(prop['roof:height']);
    }

    if (item.roofHeight) {
        item.height = Math.max(0, item.height-item.roofHeight);
    } else {
        item.roofHeight = 0;
    }

    return item;


}

window.OsmApi = OsmApi;;//---Building info---
const NUMBEROFFLOORS = 11;
const MODELINFO = {
    modelType : 'glb',
    folder : '/obj/v4/',
    fileName : 'Build.1glb.glb',
    envFile : 'city-map3-test.glb',
}

const TEXTURESINFO = ''//Emtpy for GLB and FBX
/*{
    folder: './obj/v4/',
    fileName: 'Build_D.mtl' 
}*/
const BUILDINGSCALE = 1.4 * 0.01 * 1.0 * 100;
const CLIPPINGINSIDE = false;
const FOORPLANS = true;
const VIEWS = {
    default: 0,
    topdown: 1
}
const GROUNDCOLOR = '#f9f9f9';
const SVGANIMATION = true;

//---Floors---
//Floor 3D Model Names
const BUILDING_GROUND = 'GroundFloor_';
const BUILDING_FLOOR_1 = 'Floor_1';
const BUILDING_FLOOR_2 = 'Floor_2';
const BUILDING_FLOOR_3 = 'Floor_3';
const BUILDING_FLOOR_4 = 'Floor_4';
const BUILDING_FLOOR_5 = 'Floor_5';
const BUILDING_FLOOR_6 = 'Floor_6';
const BUILDING_FLOOR_7 = 'Floor_7';
const BUILDING_FLOOR_8 = 'Floor_8';
const BUILDING_FLOOR_9 = 'Floor_9';
const BUILDING_FLOOR_10 = 'Floor_10';
const BUILDING_FLOOR_11 = 'Roof_';

//Floor Names
const FLOORNAMES = [
    {
        floor: BUILDING_GROUND,
        name: 'Ground Floor & Retail',
        short: '01',
    }, {
        floor: BUILDING_FLOOR_1,
        name: 'Floor 2',
        short: '02',
    }, {
        floor: BUILDING_FLOOR_2,
        name: 'Floor 3',
        short: '03',
    }, {
        floor: BUILDING_FLOOR_3,
        name: 'Floor 4',
        short: '04',
    }, {
        floor: BUILDING_FLOOR_4,
        name: 'Floor 5',
        short: '05',
    }, {
        floor: BUILDING_FLOOR_5,
        name: 'Floor 6',
        short: '06',
    }, {
        floor: BUILDING_FLOOR_6,
        name: 'Floor 7',
        short: '07',
    }, {
        floor: BUILDING_FLOOR_7,
        name: 'Floor 8',
        short: '08',
    }, {
        floor: BUILDING_FLOOR_8,
        name: 'Floor 9',
        short: '09',
    }, {
        floor: BUILDING_FLOOR_9,
        name: 'Floor 10',
        short: '10',
    }, {
        floor: BUILDING_FLOOR_10,
        name: 'Floor 11',
        short: '11',
    }, {
        floor: BUILDING_FLOOR_11,
        name: 'Roof',
        short: '12',
    }
]; 

//Zoom Enabled Floors
const ZOOMENABLEDFLOORS = [
    BUILDING_FLOOR_1,
    BUILDING_FLOOR_2,
    BUILDING_FLOOR_3,
    BUILDING_FLOOR_4,
    BUILDING_FLOOR_5,
    BUILDING_FLOOR_6,
    BUILDING_FLOOR_7,
    BUILDING_FLOOR_8,
    BUILDING_FLOOR_9,
    BUILDING_FLOOR_10,
    BUILDING_FLOOR_11
]

//Highlight Floors
const HIGHLIGHTFLOORS = [
    BUILDING_GROUND,
    BUILDING_FLOOR_1,
    BUILDING_FLOOR_2,
    BUILDING_FLOOR_3,
    BUILDING_FLOOR_4,
    BUILDING_FLOOR_5,
    BUILDING_FLOOR_6,
    BUILDING_FLOOR_7,
    BUILDING_FLOOR_8,
    BUILDING_FLOOR_9,
    BUILDING_FLOOR_10,
    BUILDING_FLOOR_11,
]

//Floor Order
const FLOORORDER = [
    BUILDING_FLOOR_11,
    BUILDING_FLOOR_10,
    BUILDING_FLOOR_9,
    BUILDING_FLOOR_8,
    BUILDING_FLOOR_7,
    BUILDING_FLOOR_6,
    BUILDING_FLOOR_5,
    BUILDING_FLOOR_4,
    BUILDING_FLOOR_3,
    BUILDING_FLOOR_2,
    BUILDING_FLOOR_1,
    BUILDING_GROUND
];

//---Rooms---
//Active Rooms
const ACTIVEROOMS = [
    {floor: "Floor_1", room: "202"},
    {floor: "Floor_2", room: "310"},
    {floor: "Floor_3", room: "410"},
    {floor: "Floor_4", room: "510"},
    {floor: "Floor_5", room: "612"},
    {floor: "Floor_6", room: "712"},
    {floor: "Floor_7", room: "812"},
    {floor: "Floor_8", room: "912"},
    {floor: "Floor_9", room: "1018"},
    {floor: "Floor_10", room: "1101"}
]

//Room info for tooltip
const ROOMINFO = [
    {
        previewImage: 'https://2010westend.highform.com/upload/LinkPlans/Tower11.jpg',
        number: '202',
        info: 'Tower 11',
        price: '$2,100',
        commonInfo: '',
        planInfo: '1 Bed/ 2 Bath / 500 SQ.FT.',
        unit: '202',
        type: 'Type',
        common: 'Common',

    }
    //ADD MORE ROOMS HERE
    /*
     {
        previewImage: '',
        number: '',
        info: '',
        price: 0,
        commonInfo: '',
        planInfo: ''
    }
    */
]

//Common Rooms
const COMMONROOMS = {
    "elevator" : "Elevator",
    "stairs" : "Stairs",
    "refuse" : "Refuse",
    //25
    "rest rooms" : "Rest Rooms",
    "mechanical" : "Mechanical",
    "view lounge" : "View Lounge",
    "aqua lounge" : "Aqua Lounge",
    "party lounge" : "Party Lounge",
    "rooftop terrace" : "Rooftop Terrace",
    "pool deck" : "Pool Deck",
    //6
    "lounge and game room" : "Lounge And Game Room",
    "listening room" : "Listening Room",
    "fitness and yoga" : "Fitness And Yoga",
    "restrooms" : "Restrooms",
    "leasing office" : "Leasing Office",
    "coworking" : "Coworking",
    "dog wash" : "Dog Wash",
    //2-5
    "parking" : "Parking",
}

//---SVG Files---
//SVG files info
//const SVGFOLDER = './templates/images/data/floorplans/v4/';
const SVGFOLDER = '/templates/images/data/floorplans/v4/';
const SVGMAPPING = [
    { floor: BUILDING_FLOOR_1, fileName: 'Floor2.svg' },
    { floor: BUILDING_FLOOR_2, fileName: 'Floor3.svg' },
    { floor: BUILDING_FLOOR_3, fileName: 'Floor4.svg' },
    { floor: BUILDING_FLOOR_4, fileName: 'Floor5.svg' },
    { floor: BUILDING_FLOOR_5, fileName: 'Floor6.svg' },
    { floor: BUILDING_FLOOR_6, fileName: 'Floor7.svg' },
    { floor: BUILDING_FLOOR_7, fileName: 'Floor8.svg' },
    { floor: BUILDING_FLOOR_8, fileName: 'Floor9.svg' },
    { floor: BUILDING_FLOOR_9, fileName: 'Floor10.svg' },
    { floor: BUILDING_FLOOR_10, fileName: 'Floor11.svg' },
    { floor: BUILDING_FLOOR_11, fileName: 'Roof.svg' },   
]

//---Globals
 window.mobileCheck = function() {
    let check = false;
    (function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) check = true;})(navigator.userAgent||navigator.vendor||window.opera);
    if(!check) {
        function iOS() {
            return [
              'iPad Simulator',
              'iPhone Simulator',
              'iPod Simulator',
              'iPad',
              'iPhone',
              'iPod'
            ].includes(navigator.platform)
            // iPad on iOS 13 detection
            || (navigator.userAgent.includes("Mac") && "ontouchend" in document)
        }
        check = iOS();
    }
    return check;
  };

  function getMobileOperatingSystem() {
    var userAgent = navigator.userAgent || navigator.vendor || window.opera;

    // Windows Phone must come first because its UA also contains "Android"
    if (/windows phone/i.test(userAgent)) {
        return true;
    }

    if (/android/i.test(userAgent)) {
        return true;
    }

    // iOS detection from: http://stackoverflow.com/a/9039885/177710
    if (/iPad|iPhone|iPod/.test(userAgent) && !window.MSStream) {
        return true;
    }

    return false;
}

  const isMobile = getMobileOperatingSystem();

;var AppGui = function(){

    var gui = new dat.GUI();
    gui.close();

    return gui;
}

;var AppLoader = function(){
    this.progWrapper = undefined;
    this.progressBar = undefined;
    console.log("for building");
    // different text shown while loading stuff, make sure bigger values are at top of array
    this.progressTexts = [
        {
            progress : 99,
            text : 'Preparing to launch…',
        },
        {
            progress : 66,
            text : 'Finding available units…',
        },
        {
            progress : 33,
            text : 'Importing local map data…',
        },
        {
            progress : 0,
            text : 'Loading buildings…',
        },
        {
            progress : -1,
            text : 'Loading environment…',
        },
    ];
    this.progress = {
        loaded: {
            textures: false,
            geometry: false,
        },
        minValue: 0,
        lastText: "",
        timeout: null,
    }
    this.init();
}
AppLoader.prototype.init = function(){
    this.progWrapper = document.getElementById('progressWrapper');
    this.progressBar = document.getElementById('progressBar');
    this.defaultMessage();
}
AppLoader.prototype.defaultMessage = function () {
    this.progressText(0);
}
AppLoader.prototype.onTextureProgress = function ( xhr ) {
    if ( xhr.lengthComputable ) {
        var percentComplete = xhr.loaded / xhr.total * 100;
        //console.log( Math.round( percentComplete, 2 ) + '% textures downloaded' );
        // this.progressBar.value = percentComplete;
        this.progressText(percentComplete);
        if(percentComplete >= 100){
            this.progress.loaded.textures = true;
        }
    }
}
AppLoader.prototype.onProgress = function ( xhr ) {
    if ( xhr.lengthComputable ) {
        var percentComplete = Math.round(xhr.loaded / xhr.total * 100, 2);
        // this.progressBar.value = percentComplete;
        this.progressText(percentComplete);
        if(percentComplete >= 100){
            this.progress.loaded.building = true;
            var scope = this;
            clearTimeout(this.progress.loaded.timeout);
            this.progress.loaded.timeout = setTimeout(function(){
                //console.log(scope.progWrapper.style.display);
                //console.log(percentComplete, this.progressBar.innerText);
                //console.log(MFS.manager.GetCurrentState().state);
                if(MFS.manager.GetCurrentState().state != 0)
                    scope.progWrapper.style.display = 'none'; // give some time for threejs to load everything
            }, 200);
        }
    }
};
AppLoader.prototype.onError = function ( xhr ) {
    console.warn('File failed to load', xhr);
};
// this is a bit tricky, because loader first loads textures and only then geometry.. so need some exceptions
AppLoader.prototype.progressText = function (percent) {
    var len = this.progressTexts.length;
    var text = this.progressTexts[len-1].text; // default text
    // if textures not loaded yet, dont change text to geometry texts...
    if( !this.progress.loaded.textures ){
        if(percent > 25) percent = 25; // textures are about 5mb, while geometry around 25mb
    }
    // make sure that after textures loaded, text is not changed back to first message
    if(this.progress.minValue > percent){
        percent = this.progress.minValue;
    }
    for(var i=0; i<len;i++){
        if(this.progress.loaded.building == undefined)
            text = this.progressTexts[4].text;
        else if(percent >= this.progressTexts[i].progress){
            text = this.progressTexts[i].text;
            break;
        }
    }
    if(this.progress.lastText != text){
        //console.log(text);
        this.progress.lastText = text;
        this.progressBar.innerText = text;
    }
};var AppEvents = function() {

    this.mouse = {
        down: false,
        moving: false,
    }

    this.keys = {
        c: 67,
        s: 83,
        u: 85,
        o: 79,
        up: 38,
        down: 40
    }

    this.config = {
        secondaryCameraUpdate: true,
    }

    window.addEventListener('mousemove', this.onMouseMove, false);
    MFS.container.container.addEventListener('touchstart', this.onTouchMove, false);
    MFS.container.container.addEventListener('wheel', this.onMouseScroll, false);


    // MFS.container.container.addEventListener( 'mouseup', this.onMouseUp, false ); // triggered from orbit controls
    // MFS.container.container.addEventListener( 'mousedown', this.onMouseDown, false ); // triggered from orbit controls
    window.addEventListener('keydown', this.onKeyDown, false);
    window.addEventListener('keyup', this.onKeyUp, false);

    this.bindHtmlEvents();
}

AppEvents.prototype.onMouseScroll = function(event) {

    //Ignore scrolling if the floorplan is not visible on the screen
    if (MFS.manager.GetCurrentState().state == 3) {
        console.log("Calling this", event)
        if (event.deltaY < 0) {
            MFS.building.floorplan.goToFloor(1);
        } else if (event.deltaY > 0) {
            MFS.building.floorplan.goToFloor(-1);
        }
    }
}

AppEvents.prototype.onMouseDown = function(event) {

    MFS.events.mouse.down = true;

}

/*
    how to fix this bug

    scenario 1:
    if I'm hovering mouse on building and CLICKING it, then it should trigger highlight

    scenario 2:
    mouse outside building and on click it should lock highlights

    so, if floor is already highlighted, then trigger hihglight function only

 */

// while in top down view, controsl are locked, so you cant trigger cancel with mouse
// so place a button on screen to cancel it and trigger this function
AppEvents.prototype.manualFloorplanHide = function() {

    MFS.manager.SetState(6);

    if (AppBuildingConfig.floorplansEnabled) {
        MFS.building.floorplan.hide();
        setTimeout(function() {
            MFS.building.object.children.map(function(child, index) {
                if (index < 6) {
                    child.material.transparent = false;
                }
            })
        }, 1000);
    }
    AppSearch.showAllUnits();

}

AppEvents.prototype.onMouseUp = function(event) {

    // event.preventDefault();
    MFS.events.mouse.down = false;

    // if(MFS.highlight) MFS.highlight.zoomInOnFloor(event.layerX, event.layerY);
    if (MFS.highlight) MFS.highlight.topDownView(event.layerX, event.layerY);

    if (MFS.surroundings.editor.enabled)
        MFS.surroundings.editor.onMouseClick(event.layerX, event.layerY);

}

AppEvents.prototype.onMouseMove = function(event) {

    // make sure 3d building is visibile and floorplans are not
    if (!MFS.building.floorplan.visible) {

        if (MFS.highlight) {
            MFS.controls.active = false;
            MFS.highlight.update(event.layerX, event.layerY);
        }
    }

    //  MFS.building.floorplan.tooltip.changePosition(event.layerX, event.layerY);

    if (MFS.surroundings.editor.enabled)
        MFS.surroundings.editor.onMouseMove(event.layerX, event.layerY);

}
AppEvents.prototype.onTouchMove = function(event) {

    // make sure 3d building is visibile and floorplans are not
    if (!MFS.building.floorplan.visible) {
        if (MFS.highlight) {
            MFS.controls.active = false;

            if (!isMobile) MFS.highlight.update(event.layerX, event.layerY);
        }
    }

    //  MFS.building.floorplan.tooltip.changePosition(event.layerX, event.layerY);

    if (MFS.surroundings.editor.enabled)
        MFS.surroundings.editor.onMouseMove(event.layerX, event.layerY);

}

AppEvents.prototype.onKeyUp = function(event) {


    switch (event.keyCode) {
        case MFS.events.keys.c:
            console.log(MFS.camera.position); // show camera position in console when pressing "c" on keyboard
            break;

        case MFS.events.keys.s:
            MFS.events.config.secondaryCameraUpdate = true;
            break;

        case MFS.events.keys.u:
            if (AppCameraConfig.viewBlockProtectionEnabled && AppCameraConfig.secondary.debugEnabled) {
                MFS.camera._secondary.update();
            }
            break;

        case MFS.events.keys.o:
            if (typeof MFS.gui !== 'undefined') {
                var guiWrapper = $('.dg.ac');
                if (guiWrapper.is(':visible')) {
                    guiWrapper.hide();
                } else {
                    guiWrapper.show();
                }
            }
            break;

        case MFS.events.keys.up:
            if (MFS.manager.GetCurrentState().state == 3) {
                MFS.building.floorplan.goToFloor(1);
            }
            break;

        case MFS.events.keys.down:
            if (MFS.manager.GetCurrentState().state == 3) {
                MFS.building.floorplan.goToFloor(-1);
            }
            break;
    }

    if (MFS.surroundings.editor.enabled)
        MFS.surroundings.editor.event(event.keyCode, false);

    if (typeof AppIntroEditor !== 'undefined' && AppIntroEditor.enabled) {
        AppIntroEditor.event(event.keyCode, false);
    }

}

AppEvents.prototype.onKeyDown = function(event) {

    switch (event.keyCode) {
        case MFS.events.keys.s:
            MFS.events.config.secondaryCameraUpdate = false;
            break;
    }

    if (MFS.surroundings.editor.enabled)
        MFS.surroundings.editor.event(event.keyCode, true);

}

AppEvents.prototype.bindHtmlEvents = function() {

    // when X clicked on bottom info, zoom out and clear highlights
    // $('#floors_info_close').on('click', function(){
    //     MFS.highlight.triggerZoomOut();
    // });

};var getObjectOnScreenPosition = function ( mesh, camera, renderer ) {

    var pos = getCenterPoint(mesh);

    var screenMatrix = new THREE.Matrix4();

//        screenMatrix.multiply( camera.projectionMatrix, camera.matrixWorldInverse );
    screenMatrix.multiplyMatrices(camera.projectionMatrix, camera.matrixWorldInverse);

//        screenMatrix.multiplyVector3( pos );
    pos.applyMatrix4( screenMatrix );
    return {
        x: ( pos.x + 1 ) * renderer.domElement.clientWidth / 2,
        y: ( - pos.y + 1) * renderer.domElement.clientHeight / 2
    };


    function getCenterPoint(mesh) {
        var center = new THREE.Vector3();
        var geometry = mesh.geometry;
        geometry.computeBoundingBox();
        geometry.boundingBox.getCenter( center );
        mesh.localToWorld( center );

        return center;
    }
}

var getFloorNumberByName = function(name, list){
    return parseInt(list.find(function(child){
        return child.floor === name;
    }).short);
}

var getObjectOnScreenSize = function(mesh, camera, renderer){
    var size = new THREE.Vector2();
    var boundingBox2D = computeScreenSpaceBoundingBox2(mesh, camera);
    boundingBox2D.getSize(size);
    var pixelCoordScale = normalizedToPixels(size.multiplyScalar(0.5), renderer.domElement.clientWidth, renderer.domElement.clientHeight);
    return pixelCoordScale;

    function computeScreenSpaceBoundingBox2(mesh, camera){

        var min = new THREE.Vector3(1);
        var max = new THREE.Vector3(-1);
        var v3 = new THREE.Vector3();

        var posData = mesh.geometry.attributes.position;
        var len = posData.count / posData.itemSize;
        var x,y,z,k;

        for(var i=0;i<len;i++){

            k = posData.itemSize * i;
            x = posData.array[k];
            y = posData.array[k+1];
            z = posData.array[k+2];

            var vertexWorldCoord = v3.set(x,y,z).applyMatrix4(mesh.matrixWorld);
            var vertexScreenSpace = vertexWorldCoord.project(camera);
            min.min(vertexScreenSpace);
            max.max(vertexScreenSpace);
        }

        return new THREE.Box2(min, max);
    }

    function normalizedToPixels(coord, renderWidthPixels, renderHeightPixels) {
        var Screen = new THREE.Vector2(renderWidthPixels, renderHeightPixels);
        return coord.clone().multiply(Screen);
    }
}

var checkActiveRoom = function(roomNumber){
    var roomFound = false;
    ACTIVEROOMS.forEach(function(element){
        if(element.room == roomNumber)
            roomFound = true;
    });
    return roomFound;
}

var findDistance = function(point1x, point1y, point2x, point2y){
    return Math.sqrt(Math.pow((point1x - point2x), 2) + Math.pow((point1y - point2y), 2));
};var AppScene = function(){

    var scene = new THREE.Scene();
    window.scene = scene;
    // creates a fog on far objects
    if(this.checkIfFogEnabled()) {
        var fogColor = new THREE.Color(0xffffff);
        scene.background = fogColor;
        scene.fog = new THREE.Fog(fogColor, 0.0025, AppCameraConfig.scene.size * 0.9);
    }

    return scene;
}

AppScene.prototype.checkIfFogEnabled = function(){

    var params = getJsonFromUrl();
    return params.hasOwnProperty('fog');

    function getJsonFromUrl() {
        var query = location.search.substr(1);
        var result = {};
        query.split("&").forEach(function(part) {
            var item = part.split("=");
            result[item[0]] = decodeURIComponent(item[1]);
        });
        return result;
    }

};var AppCameraConfig = {

    position : new THREE.Vector3(110.3, 770, 166.7),
    target : new THREE.Vector3(0,43,0),
    scene : { // visible scene size
        fov: 47, // if you neeed to see more on screen, simply increase this value. default 47
        size : 1500,
    },
    secondary : {
        size : 120,
        minUpdateTime: 100, // ms
        debugEnabled: false,
    },
    viewBlockProtectionEnabled: true,
    surroundings: { // when surroundings block the view, make them transparent with opacity defined below
        opacity: 0.4,
        fadeDuration: 700, // ms
    },
    floorplan: {
        distance: new THREE.Vector3(0,160,0), // top-down view distance on y axis up from selected floor
    }
}

;var AppCamera = function(){

    var camera = new THREE.PerspectiveCamera( AppCameraConfig.scene.fov, MFS.container.width / MFS.container.height, 1, AppCameraConfig.scene.size );
    camera.position.copy(AppCameraConfig.position);
    camera._zoomedIn = false;

    //MFS.scene.add( MFS.camera, 'camera' );

    if(AppCameraConfig.viewBlockProtectionEnabled) {
        camera._secondary = new AppSecondaryCamera(camera);
        // update is triggered with 'change' of controls at AppControls
    }

    return camera;
}
;// this is used to detect if surroundings are blocking the view
var AppSecondaryCamera = function(firstCamera){

    this.nextUpdate = new Date().getTime();
    this.prevUpdate = new Date().getTime();
    this.ready = false;
    this.camera2 = null;
    this.helper = null;
    this.firstCamera = firstCamera;

    this.init(firstCamera);
}

AppSecondaryCamera.prototype.init = function(){

    this.camera2 = new THREE.PerspectiveCamera( AppCameraConfig.scene.fov, MFS.container.width / MFS.container.height, 1, AppCameraConfig.secondary.size );
    this.updateCameraParams(this.firstCamera);

    MFS.scene.add( this.camera2 );

    // detection stuff
    this.frustum = new THREE.Frustum();
    this.cameraViewProjectionMatrix = new THREE.Matrix4();

    // camera helper
    if(AppCameraConfig.secondary.debugEnabled) {
        this.helper = new THREE.CameraHelper(this.camera2);
        MFS.scene.add(this.helper);
    }
}

AppSecondaryCamera.prototype.onResize = function(){
    this.camera2.aspect = MFS.container.width / MFS.container.height;
    this.camera2.updateProjectionMatrix();
}

// when camera position is changed by controls, it triggers this function
AppSecondaryCamera.prototype.onChange = function(){

    if(!MFS.events.config.secondaryCameraUpdate){
        return;
    }
    if(!this.ready){
        return;
    }
    if(AppCameraConfig.secondary.debugEnabled){
        return; // update manually by pressing "u" key
    }

    this.update();

}

// controls change can be triggered more than 30 times per second, so limit update rate here, because its all calculations and resources
AppSecondaryCamera.prototype.update = function(){
    var now = new Date().getTime();
    if(now >= this.nextUpdate){
        this.prevUpdate = now;
        this.nextUpdate = now + AppCameraConfig.secondary.minUpdateTime; // every X ms update
        this.updateCameraParams(this.firstCamera);
        MFS.surroundings.checkViewBlockers();
    }
}

AppSecondaryCamera.prototype.getPotentialCameraViewBlockers = function(objects, callback){


    // show which surrouding building potentially could block camera's view when rotating around
    var debug = false;

    // create a sphere in which all surrounding building are considered dangerous and possible camera's view blockers
    var radius = distanceFrom(AppCameraConfig.position, AppCameraConfig.target);

    var dangerZone = new THREE.Sphere(AppCameraConfig.target, radius );

    if(debug) {
        var geometry = new THREE.SphereGeometry(radius, 64, 64);
        var material = new THREE.MeshBasicMaterial({color: 0x00ff00, transparent: true, opacity: 0.2});
        var sphere = new THREE.Mesh(geometry, material);
        MFS.scene.add(sphere);
    }


    // go thru surroudings and if they collide with sphere - mark them as dangerous and put to group
    for(var i=0;i<objects.children.length;i++){

        var child = objects.children[i];
        var obj = child.clone(); // do calculations with clone only
        if(obj){

            obj.updateMatrixWorld(true);
            obj.geometry.computeBoundingBox();

            var box3 = new THREE.Box3(obj.geometry.boundingBox.min, obj.geometry.boundingBox.max);

            if(intersects(dangerZone, box3) && atLeastAtCameraHigh(obj.geometry.boundingBox, AppCameraConfig.position.y) ){

                MFS.surroundings.viewBlockers.push({
                    obj: obj,
                    bbox: box3,
                });

                if(debug) {
                    var boxHelper = new THREE.BoxHelper(obj, '#ff0000');
                    MFS.scene.add(boxHelper);
                }

            }

        }

    }


    this.ready = true;

    if(callback) callback();

    function distanceFrom(a, b){
        return Math.abs(a.distanceTo(b));
    }


    // check if surrounding building's height is at least at default camera y position
    // some surrounding buildings are short, so they will never block camera view
    function atLeastAtCameraHigh(bbox, cameraY){

        // v2 if height is at least half cameraY, mark it
        // v2 - because for initial view, building near is blocking building's lower part visibility
        var custom = cameraY / 3;
        return bbox.min.y >= custom || bbox.max.y >= custom;

        // check max height of bounding box
        // return bbox.min.y >= cameraY || bbox.max.y >= cameraY
    }

    // if sphere intersects with a building bounding box (sphere radius = distance from camera to main building)
    function intersects(sphere, box){

        var closest = new THREE.Vector3().set(sphere.center.x, sphere.center.y, sphere.center.z);
        closest.clamp(box.min, box.max);

        var distance =  sphere.center.distanceToSquared(closest);
        return distance < (sphere.radius * sphere.radius);
    }
}

AppSecondaryCamera.prototype.updateCameraParams = function(firstCamera){
    this.camera2.position.copy(firstCamera.position);
    this.camera2.rotation.copy(firstCamera.rotation);
}

AppSecondaryCamera.prototype.detectViewBlockingSurrounding = function(objects){

    var intersections = [];

    this.cameraViewProjectionMatrix.multiplyMatrices( this.camera2.projectionMatrix, this.camera2.matrixWorldInverse );
    this.frustum.setFromMatrix(this.cameraViewProjectionMatrix);

    if (objects.length > 0) {
      for (var i=0;i<objects.length;i++) {
        if (this.frustum.intersectsBox(objects[i].bbox)) {
            intersections.push(objects[Math.floor(Math.random() * 4)].obj);
        }
      }
    }

    return intersections;
};var AppCameraAnimation = {

    zoomInByPercentage : 0.20, // percentage, max 1, min 0

    original : {
        camera : {
            position : new THREE.Vector3(),
            rotation : new THREE.Euler(),
        },
        target : new THREE.Vector3(),
    },

    // if default distance to building is modified often, create v3 at big position, like 500, then calculate 20% of it and make it as predefined pos
    predefinedPositions : {
        font: { x: 1.401, y: 45, z: 149.993 },
        left: { x: -103.901, y: 45, z: -108.187 },
        right: { x: 57.69, y: 45, z: -138.462 },
    },

    busy : false,

    zoomIn: function(camera, target){
        var alreadyZoomedIn = false;

        // if camera already zoomed in, dont zoom in again
        if(camera._zoomedIn){
            alreadyZoomedIn = true;
        }else{
            camera._zoomedIn = true;
        }


        var scope = this;

        // save original camera position
        if(!alreadyZoomedIn) {

            this.original.camera.position.copy(camera.position);
            this.original.camera.rotation.copy(camera.rotation);
            this.original.target.copy(AppCameraConfig.target); // default camera target

            // UPGRADE end position - move to closest predefined position?

            // camera's end position
            var viewPosition = this.findClosestViewPosition(camera.position);
            var to = this.endPosition(viewPosition, target, this.zoomInByPercentage); // zoom in

        }else{

            // only rise/lower camera vertically if its already zoomed in
            var to = new THREE.Vector3().copy(camera.position);
            to.y = target.y;
        }


        var cameraDestination = new THREE.Vector3(to.x, to.y, to.z);
        var targetDestination = new THREE.Vector3().copy(target); // TODO - move camera target position too

        AppCameraAnimation.animate(camera, cameraDestination, targetDestination, null, onAnimationComplete);

        function onAnimationComplete(){
            scope.busy = false;
            MFS.controls.target.copy(target);
        }

    },

    zoomOut: function(camera){

        // if(this.busy) return;
        // this.busy = true;

        if(camera._zoomedIn === false) return;

        var scope = this;

        var target = new THREE.Vector3().copy(this.original.target);
        var to = new THREE.Vector3().copy(this.original.camera.position);

        var cameraDestination = new THREE.Vector3(to.x, to.y, to.z);
        var targetDestination = new THREE.Vector3().copy(target);

        AppCameraAnimation.animate(camera, cameraDestination, targetDestination, null, onAnimationComplete);

        function onAnimationComplete(){
            camera._zoomedIn = false;
            scope.busy = false;
            MFS.controls.target.copy(scope.original.target);
            // if(MFS.camera._secondary !== undefined) MFS.camera._secondary.onChange(); // hide view blockers
        }

    },

    animate: function(camera, cameraDestination, targetDestination, options, callback){
        options = options || {duration: 1000};

        // console.log('ANIMATION OPTIONS', options);

        var originalPosition = new THREE.Vector3().copy(camera.position); // original position
        var originalRotation = new THREE.Euler().copy(camera.rotation); // original rotation

        // set camera's end position and calculate rotation needed
        camera.position.set(cameraDestination.x, cameraDestination.y, cameraDestination.z);
        camera.lookAt(targetDestination);
        var cameraDestinationRotation = new THREE.Euler().copy(camera.rotation);

        // reset original position and rotation
        camera.position.set(originalPosition.x, originalPosition.y, originalPosition.z);
        camera.rotation.set(originalRotation.x, originalRotation.y, originalRotation.z);


        // Tweening
        var positionTweenComplete = false;
        var rotationTweenComplete = false;

        // position
        new TWEEN.Tween(camera.position)
            .to({
                x: cameraDestination.x,
                y: cameraDestination.y,
                z: cameraDestination.z
            }, options.duration)
            .onComplete(function(){
                positionTweenComplete = true;
                checkForAnimationsEnd();
            })
            .start();

        // rotation (using slerp)
        var qa = new THREE.Quaternion().copy(camera.quaternion); // src quaternion
        var qb = new THREE.Quaternion().setFromEuler(cameraDestinationRotation); // dst quaternion
        var qm = new THREE.Quaternion();

        var o = {t: 0};
        new TWEEN.Tween(o)
            .to({t: 1}, options.duration)
            .onUpdate(function () {
                THREE.Quaternion.slerp(qa, qb, qm, o.t);
                camera.quaternion.set(qm.x, qm.y, qm.z, qm.w);
            })
            .onComplete(function(){
                rotationTweenComplete = true;
                checkForAnimationsEnd();
            })
            .start();


        function checkForAnimationsEnd(){
            if(positionTweenComplete && rotationTweenComplete){
                if(callback) callback();
            }
        }
    },

    // where zoom in should
    // A - current camera position
    // B - target position (where camera is looking at)
    endPosition: function(pointA, pointB, percentage){

        var dir = pointB.clone().sub(pointA);
        var len = dir.length();
        dir = dir.normalize().multiplyScalar(len*percentage); // percentage int or float?
        var endPos = pointA.clone().add(dir);

        // also make sure endPosition y is equal to target.y
        endPos.y = pointB.y;

        // maybe even center camera on x=0? for a nice camera rotation
        // endPos.x = 0;

        // make sure building is always viewed from front
        // endPos.z = 97;

        return endPos;
    },

    findClosestViewPosition : function(cameraPosition){

        var closestPositon = null;
        var distance = 9999;
        var tempDist;

        for(var i in this.predefinedPositions){

            tempDist = cameraPosition.distanceTo( this.predefinedPositions[i] );
            if(tempDist < distance){
                distance = tempDist;
                closestPositon = i;
            }

        }

        if(closestPositon !== null){
            var pos = this.predefinedPositions[closestPositon]; // this is object, NEED vector3 on return
            return new THREE.Vector3().set(pos.x, pos.y, pos.z);
        }

        return cameraPosition; // this is vector3
    }


}
;var AppContainer = function(){
    this.container = document.getElementById('building3d');
    console.log("for building");
    this.width = this.container.offsetWidth;
    this.height = this.container.offsetHeight;
    window.addEventListener( 'resize', this.onResize, false );
}
AppContainer.prototype.addRenderer = function(renderer){
    console.log("for building");
    this.container.appendChild( renderer.domElement );
}
AppContainer.prototype.onResize = function(){
    console.log("for building");
    MFS.container.width = MFS.container.container.offsetWidth;
    MFS.container.height = MFS.container.container.offsetHeight;
    MFS.camera.aspect = MFS.container.width / MFS.container.height;
    MFS.camera.updateProjectionMatrix();
    if (AppCameraConfig.viewBlockProtectionEnabled && MFS.camera.hasOwnProperty('_secondary')) {
        MFS.camera._secondary.onResize();
    }
    MFS.renderer.setSize(  MFS.container.width, MFS.container.height );
    if(AppBuildingConfig.floorplansEnabled){
        MFS.building.floorplan.resize();
    }
};var AppControlsConfig = {

    minDistance: 100, // minimum zoom-in distance, make sure it is not too close, because user will see inside the building

    maxDistance: 200, // maximum zoom-out distance, if you wanna lock zooming, make it equal to minDistance

    // minPolarAngle: 30, // maximum pan up

    // maxPolarAngle: 100, // minimum pan down

    minPolarAngle: 90,

    maxPolarAngle: 90,

    enableZoom: true,

    enablePan: false,

    enabled: false,

    debug: false,

}





var AppControls = function() {

    if (!isMobile) AppControlsConfig.enableZoom = false;

    console.log("HELLLOOOO");
    // debugging

    //     AppControlsConfig.minDistance = 10;

    //     AppControlsConfig.maxDistance = 1000;

    //     AppControlsConfig.minPolarAngle = 0;

    // AppControlsConfig.maxPolarAngle = 110;

    // AppControlsConfig.enableZoom = true;

    // AppControlsConfig.enablePan = true;

    // debugging



    var paramsRange = {

        minDistance: [25, 100],

        maxDistance: [100, 1000], // distance

        minPolarAngle: [0, 180], // degrees

        maxPolarAngle: [0, 110], // degrees

    }





    var controls = new THREE.OrbitControls(MFS.camera, MFS.renderer.domElement);



    // let user freely rotate camera around at any axis

    controls.unlockControls = function() {

        controls.minDistance = 0;

        controls.maxDistance = Infinity;

        controls.minPolarAngle = 0; // radians

        controls.maxPolarAngle = Math.PI; // radians

    }



    // lock controls to specific angle, so it only spins around horizontally

    controls.lockControls = function() {

        controls.minDistance = AppControlsConfig.minDistance;

        controls.maxDistance = AppControlsConfig.maxDistance;

        controls.minPolarAngle = THREE.Math.degToRad(AppControlsConfig.minPolarAngle); // limit panning up

        controls.maxPolarAngle = THREE.Math.degToRad(AppControlsConfig.maxPolarAngle); // limit panning down

    }



    // top down view controls lock

    controls.topDownViewLock = function() {

        MFS.controls.minPolarAngle = THREE.Math.degToRad(0); // limit panning down

        MFS.controls.maxPolarAngle = THREE.Math.degToRad(110); // limit panning down

    }



    controls.StartRotating = function() {

        setTimeout(function() {

                if (controls.autoRotate == true) return;



                if (MFS.manager.GetCurrentState().state != 2) return;



                controls.autoRotate = true;

                controls.autoRotateSpeed = 0.0;



                let finalSpeed = 0.5;



                if (isMobile) finalSpeed = 0.2;



                new TWEEN.Tween(controls)

                .to({ autoRotateSpeed: 0.5 }, 1200)

                .start();

            },

            3000);

    }



    controls.StopRotating = function() {

        controls.autoRotate = false;

    }





    //controls.addEventListener( 'change', render ); // call this only in static scenes (i.e., if there is no animation loop)

    controls.enableDamping = true; // an animation loop is required when either damping or auto-rotation are enabled

    controls.dampingFactor = 0.25;

    controls.screenSpacePanning = false;



    controls.target.copy(AppCameraConfig.target);

    controls.enableKeys = false;

    controls.enableZoom = AppControlsConfig.enableZoom; // disable user zoom in/out

    controls.enablePan = AppControlsConfig.enablePan; // disable user pan up/down



    if (MFS.intro !== undefined && MFS.intro.enabled) {

        controls.enabled = false;

    } else {

        controls.lockControls();

        // controls.minDistance = AppControlsConfig.minDistance;

        // controls.maxDistance = AppControlsConfig.maxDistance;

        // controls.minPolarAngle = THREE.Math.degToRad(AppControlsConfig.minPolarAngle); // limit panning up

        // controls.maxPolarAngle = THREE.Math.degToRad(AppControlsConfig.maxPolarAngle); // limit panning down

    }





    if (AppCameraConfig.viewBlockProtectionEnabled) {

        controls.addEventListener('change', function() {

            MFS.camera._secondary.onChange();

        });

    }



    controls.mouseDownCallback = MFS.events.onMouseDown;

    controls.mouseUpCallback = MFS.events.onMouseUp;



    if (typeof MFS.gui !== 'undefined') {



        var group = MFS.gui.addFolder('Controls');

        group.add(AppControlsConfig, 'minDistance', paramsRange.minDistance[0], paramsRange.minDistance[1]).onChange(function(val) {

            change('minDistance', val);

        });

        group.add(AppControlsConfig, 'maxDistance', paramsRange.maxDistance[0], paramsRange.maxDistance[1]).onChange(function(val) {

            change('maxDistance', val);

        });

        group.add(AppControlsConfig, 'minPolarAngle', paramsRange.minPolarAngle[0], paramsRange.minPolarAngle[1]).onChange(function(val) {

            changeAngle('minPolarAngle', val);

        });

        group.add(AppControlsConfig, 'maxPolarAngle', paramsRange.maxPolarAngle[0], paramsRange.maxPolarAngle[1]).onChange(function(val) {

            changeAngle('maxPolarAngle', val);

        });

        group.add(AppControlsConfig, 'enableZoom').onChange(function(val) {

            change('enableZoom', val);

        });

        group.add(AppControlsConfig, 'enablePan').onChange(function(val) {

            change('enablePan', val);

        });

        group.add(AppControlsConfig, 'enabled').onChange(function(val) {

            change('enabled', val);

        });

        group.add(AppControlsConfig, 'debug').onChange(function(val) {





            if (val === true) {

                change('minDistance', paramsRange.minDistance[0]);

                change('maxDistance', paramsRange.maxDistance[1]);

                changeAngle('minPolarAngle', paramsRange.minPolarAngle[0]);

                changeAngle('maxPolarAngle', paramsRange.maxPolarAngle[1]);

                change('enableZoom', val);

            } else {

                change('minDistance', AppControlsConfig.minDistance);

                change('maxDistance', AppControlsConfig.maxDistance);

                changeAngle('minPolarAngle', AppControlsConfig.minPolarAngle);

                changeAngle('maxPolarAngle', AppControlsConfig.maxPolarAngle);

                change('enableZoom', val);

            }



        });



        function change(key, value) {

            controls[key] = value;

        }



        function changeAngle(key, value) {

            var angle = THREE.Math.degToRad(value);

            controls[key] = angle;

        }

    }







    return controls;

};var AppLights = function(){



    this.config = {
        ambient : {
            color: 0xe0e0e1, // hex color format
            intensity: 1.02,
        },
        point: {
            color: 0xffffff, // hex color format
            intensity: 0.1
        },
        hemisphere : {
            color: 0xb9c8fa, // hex color format
            groundColor: 0x0, // hex color format
            intensity: 0.3,

        }
    }

    this.open = false;


    this.lightHelper = null;

    this.addAmbientLight();
    this.addPointLight();
    this.addHemisphereLight();
    // this.addSpotlight();

    this.gui();

}

AppLights.prototype.addAmbientLight = function(){

    this.ambientLight = new THREE.AmbientLight( this.config.ambient.color, this.config.ambient.intensity );
    MFS.scene.add( this.ambientLight );

}

AppLights.prototype.addPointLight = function(){

    this.pointLight = new THREE.PointLight( this.config.point.color, this.config.point.intensity);
    MFS.camera.add( this.pointLight );

}

AppLights.prototype.addHemisphereLight = function(){

    this.hemisphere = new THREE.HemisphereLight( this.config.hemisphere.color, this.config.hemisphere.groundColor, this.config.hemisphere.intensity );
    MFS.scene.add( this.hemisphere );

    // console.log(this.hemisphere);

}

AppLights.prototype.gui = function(){

    if(typeof MFS.gui === 'undefined') return;

    var scope = this;
    var params = {};

    if(this.spotLight){
        params.spotlight = {
            'light color': scope.spotLight.color.getHex(),
            intensity: scope.spotLight.intensity,
            distance: scope.spotLight.distance,
            angle: scope.spotLight.angle,
            penumbra: scope.spotLight.penumbra,
            decay: scope.spotLight.decay
        }
    }

    if(this.ambientLight){
        params.ambient = {
            'ambient color': scope.ambientLight.color.getHex(),
                intensity: scope.ambientLight.intensity,
        };
    }

    if(this.pointLight){
        params.point = {
            'point color': scope.pointLight.color.getHex(),
                intensity: scope.pointLight.intensity,
                distance: scope.pointLight.distance,
        };
    }

    if(this.hemisphere){
        params.hemisphere = {
            'sky color': scope.hemisphere.color.getHex(),
            'ground color': scope.hemisphere.groundColor.getHex(),
            intensity: scope.hemisphere.intensity,
        }
    }



    if(this.spotLight) {
        var group1 = MFS.gui.addFolder('spotlight');
        group1.addColor( params.spotlight, 'light color' ).onChange( function ( val ) {
            scope.spotLight.color.setHex( val );
        } );
        group1.add( params.spotlight, 'intensity', 0, 2 ).onChange( function ( val ) {
            scope.spotLight.intensity = val;
        } );
        group1.add( params.spotlight, 'distance', 50, 200 ).onChange( function ( val ) {
            scope.spotLight.distance = val;
        } );
        group1.add( params.spotlight, 'angle', 0, Math.PI / 3 ).onChange( function ( val ) {
            scope.spotLight.angle = val;
        } );
        group1.add( params.spotlight, 'penumbra', 0, 1 ).onChange( function ( val ) {
            scope.spotLight.penumbra = val;
        } );
        group1.add( params.spotlight, 'decay', 1, 2 ).onChange( function ( val ) {
            scope.spotLight.decay = val;
        } );
        if(this.open) group1.open();
    }

    // ambient light
    if(this.ambientLight) {
        var group2 = MFS.gui.addFolder('AMBIENT');
        group2.addColor(params.ambient, 'ambient color').onChange(function (val) {
            scope.ambientLight.color.setHex(val);
        });
        group2.add(params.ambient, 'intensity', 0, 2).onChange(function (val) {
            scope.ambientLight.intensity = val;
        });
        if(this.open) group2.open();
    }



    // point light
    if(this.pointLight) {
        var group3 = MFS.gui.addFolder('POINT');
        group3.addColor(params.point, 'point color').onChange(function (val) {
            scope.pointLight.color.setHex(val);
        });
        group3.add(params.point, 'intensity', 0, 2).onChange(function (val) {
            scope.pointLight.intensity = val;
        });
        if(this.open) group3.open();
    }


    // hemisphere light
    if(this.hemisphere) {
        var group4 = MFS.gui.addFolder('HEMISPHERE');
        group4.addColor(params.hemisphere, 'sky color').onChange(function (val) {
            scope.hemisphere.color.setHex(val);
        });
        group4.addColor(params.hemisphere, 'ground color').onChange(function (val) {
            scope.hemisphere.groundColor.setHex(val);
        });
        group4.add(params.hemisphere, 'intensity', 0, 2).onChange(function (val) {
            scope.hemisphere.intensity = val;
        });
        if(this.open) group4.open();
    }

    MFS.gui.open();

}

AppLights.prototype.addSpotlight = function(){

    this.spotLight = new THREE.SpotLight( 0xffffff, 1 );
    this.spotLight.position.set( 15, 40, 35 );
    this.spotLight.angle = Math.PI / 4;
    this.spotLight.penumbra = 0.05;
    this.spotLight.decay = 2;
    this.spotLight.distance = 200;
    // this.spotLight.castShadow = true;
    // this.spotLight.shadow.mapSize.width = 1024;
    // this.spotLight.shadow.mapSize.height = 1024;
    // this.spotLight.shadow.camera.near = 10;
    // this.spotLight.shadow.camera.far = 200;
    MFS.scene.add( this.spotLight );


    this.lightHelper = new THREE.SpotLightHelper( this.spotLight );
    MFS.scene.add( this.lightHelper );

}

AppLights.prototype.update = function(){

    if(this.lightHelper) this.lightHelper.update();

};var AppRenderer = function(){

    var renderer = new THREE.WebGLRenderer({ antialias: true });
    renderer.setPixelRatio( window.devicePixelRatio );
    renderer.setSize( MFS.container.width, MFS.container.height );
    renderer.setClearColor( new THREE.Color('white'), 1 );

    // ??? set it dynamically
    if(AppBuildingConfig.clippingInsideEnabled){
        renderer.localClippingEnabled = true;
        renderer.clippingPlanes = [];
    }

    return renderer;
};var AppSky = function(){

    this.sky = null;
    this.sunSphere = null;

    this.config = {
        turbidity: 20,
        rayleigh: 0,
        mieCoefficient: 0.005,
        mieDirectionalG: 0,
        luminance: 0.01, // cant be totally zero
        inclination: 0.2977, // elevation / inclination
        azimuth: 0.1286, // Facing front,
        sun: false,
        enabled: true,
    }

    this.init();
}

AppSky.prototype.show = function(){

    MFS.scene.add( this.sky );
    MFS.scene.add( this.sunSphere );

}

AppSky.prototype.init = function(){

    var effectController = this.config;
    var scope = this;

    // Add Sky
    this.sky = new THREE.Sky();
    this.sky.scale.setScalar( 450000 );


    // Add Sun Helper
    this.sunSphere = new THREE.Mesh(
        new THREE.SphereBufferGeometry( 20000, 16, 8 ),
        new THREE.MeshBasicMaterial( { color: 0xffffff } )
    );
    this.sunSphere.position.y = - 700000;
    this.sunSphere.visible = false;

    var distance = 400000;
    function guiChanged() {
        var uniforms = scope.sky.material.uniforms;
        uniforms.turbidity.value = effectController.turbidity;
        uniforms.rayleigh.value = effectController.rayleigh;
        uniforms.luminance.value = effectController.luminance;
        uniforms.mieCoefficient.value = effectController.mieCoefficient;
        uniforms.mieDirectionalG.value = effectController.mieDirectionalG;
        var theta = Math.PI * ( effectController.inclination - 0.5 );
        var phi = 2 * Math.PI * ( effectController.azimuth - 0.5 );
        scope.sunSphere.position.x = distance * Math.cos( phi );
        scope.sunSphere.position.y = distance * Math.sin( phi ) * Math.sin( theta );
        scope.sunSphere.position.z = distance * Math.sin( phi ) * Math.cos( theta );
        uniforms.sunPosition.value.copy( scope.sunSphere.position );
        // scope.sunSphere.visible = effectController.sun;
        scope.sky.visible = effectController.enabled;
    }
    guiChanged();

    if(typeof MFS.gui === 'undefined') return;

    /// GUI
    var skyGroup = MFS.gui.addFolder('sky');

    skyGroup.add( effectController, "turbidity", 1.0, 20.0, 0.1 ).onChange( guiChanged );
    skyGroup.add( effectController, "rayleigh", 0.0, 4, 0.001 ).onChange( guiChanged );
    skyGroup.add( effectController, "mieCoefficient", 0.0, 0.1, 0.001 ).onChange( guiChanged );
    skyGroup.add( effectController, "mieDirectionalG", 0.0, 1, 0.001 ).onChange( guiChanged );
    skyGroup.add( effectController, "luminance", 0.0, 2 ).onChange( guiChanged );
    skyGroup.add( effectController, "inclination", 0, 1, 0.0001 ).onChange( guiChanged );
    skyGroup.add( effectController, "azimuth", 0, 1, 0.0001 ).onChange( guiChanged );
    // skyGroup.add( effectController, "sun" ).onChange( guiChanged );
    skyGroup.add( effectController, "enabled" ).onChange( guiChanged );
    // skyGroup.open();


};var AppSurroundings = function(){
    // this.file = 'data/surroundings/cityscape/v6.json';
    //this.file = TPL_images+'/data/surroundings/linkphx/geo3.json';
    this.file = '/templates/images/data/surroundings/linkphx/geo3.json';
    this.scale = 4.8;
    this.group = new THREE.Object3D();
    this.ground = null;
    // surroundings colors and other params
    this.custom = {
        color: 0xd2d2d3,
        emissive: 0x2a2a2a,
        emissiveIntensity : 0.3,
        groundColor: 0xc6c6c6,
    }
    this.lastIntersections = {}; // surroundings intersections with camera2 (which check for view blockers)
    this.viewBlockers = []; // all surrouding objects found at X radius from the  center, where X is secondary camera distance
    this.animations = {};
    this.data = null;
    this.init(); // load surroundings from local json file. use "/editor" to modify and save json files
    this.gui();
}
// load surroundings from json file
AppSurroundings.prototype.init = function(){
    var custom = this.custom;
    var group = this.group;
    var scope = this;
    createGround();

    function createGround(){
        var size = AppCameraConfig.scene.size || 1500;
        var geometry = new THREE.PlaneGeometry( size, size, 8 );
        var singleMaterial = new THREE.MeshLambertMaterial({
            color: custom.groundColor,
            emissive: custom.emissive,
            emissiveIntensity: custom.emissiveIntensity,
        });
        var ground = new THREE.Mesh( geometry, singleMaterial );
        ground.visible = true;
        ground.rotation.x = -Math.PI / 2;
        scope.ground = ground;
        // add/show ground after loader
    }
}
AppSurroundings.prototype.createBuilding = function(item, key){
    var bldgHeight = item.height;
    var shapes = new THREE.Shape( item.points );
    var extrudePath = new THREE.CurvePath();
    extrudePath.add( new THREE.LineCurve3( new THREE.Vector3(0,0,0), new THREE.Vector3(0,bldgHeight,0) ) );
    var geom = new THREE.ExtrudeGeometry( shapes, {
        extrudePath: extrudePath,
        material: 0
    });
    var face,
        wci = 0,
        rci = 0;
    for ( var i=0, len=geom.faces.length; i < len; i++ ) {
        face = geom.faces[i];
        ( face.normal.y === 1 ) ? face.materialIndex = rci : face.materialIndex = wci;
    }
    var singleMaterial = new THREE.MeshLambertMaterial({
        color: this.custom.color,
        emissive: this.custom.emissive,
        emissiveIntensity: this.custom.emissiveIntensity,
    });
    var mesh = new THREE.Mesh( geom, singleMaterial );
    mesh.name = 'buildings_'+key;
    mesh._key = key;
    this.group.add(mesh);
}
AppSurroundings.prototype.show = function(){
    MFS.scene.add(this.group);
    MFS.scene.add(this.ground);
}
AppSurroundings.prototype.load = function(file, callback){
    // var gltfLoader = new THREE.GLTFLoader();
    //
    // gltfLoader.load(file, function(gltf){
    //
    //     // gltf.animations; // Array<THREE.AnimationClip>
    //     // gltf.scene; // THREE.Scene
    //     // gltf.scenes; // Array<THREE.Scene>
    //     // gltf.cameras; // Array<THREE.Camera>
    //     // gltf.asset; // Object
    //
    //     if(callback) callback(gltf.scene);
    //
    // }, function(progress){
    //
    // }, function(error){
    //     console.warn('surroundings failed to load', error);
    // })
}
AppSurroundings.prototype.gui = function(){
    if(typeof MFS.gui === 'undefined') return;
    var openByDefault = false;
    var scope = this;
    var params = {
        color: this.custom.color,
        emissive:  this.custom.emissive,
        emissiveIntensity: this.custom.emissiveIntensity,
        groundColor: this.custom.groundColor,
        '&nbsp;' : 0,
    }
    var group = MFS.gui.addFolder('SURROUNDINGS');
    group.addColor( params, 'color').onChange( function ( val ) {
        change('color',val);
    } );
    group.addColor( params, 'emissive').onChange( function ( val ) {
        change('emissive',val);
    } );
    group.add( params, 'emissiveIntensity', 0,1).onChange( function ( val ) {
        change('emissiveIntensity',val);
    } );
    group.addColor( params, 'groundColor').onChange( function ( val ) {
        changeGround(val);
    } );
    group.add( params, '&nbsp;').onChange( function ( val ) {} );
    group.add( params, '&nbsp;').onChange( function ( val ) {} );
    if(openByDefault) group.open();
    var timeout = null;
    function change(key, value){
        var isColor = true;
        if(key === 'emissiveIntensity') isColor = false;
        // this is a heavy operation, so delay change until color is picked
        clearTimeout(timeout);
        timeout = setTimeout(function () {
            for (var i = 0; i < scope.group.children.length; i++) {
                if (isColor) {
                    scope.group.children[i].material[key].setHex(value);
                } else {
                    scope.group.children[i].material[key] = value;
                }
            }
        }, 250);
    }
    function changeGround(value){
        scope.ground.material.color.setHex(value);
    }
}
// check which surroundings may block direct view angle to main building
AppSurroundings.prototype.checkViewBlockers = function(){
    // check previously changed objects
    if ( Object.keys( this.lastIntersections ).length > 0) {
        for (var c = 0; c < this.viewBlockers.length; c++) {
            if(this.lastIntersections[ this.viewBlockers[c].obj.id ] ) {
                this.fade(this.viewBlockers[c].obj, 1);
            }
        }
    }
    var intersections = MFS.camera._secondary.detectViewBlockingSurrounding(this.viewBlockers);
    if(intersections.length > 0){
        var changed = {};
        for(var i=0; i<intersections.length;i++){
            this.fade(intersections[i], AppCameraConfig.surroundings.opacity);
            changed[ intersections[i].id ] = true;
        }
        this.lastIntersections = changed;
    }
}
AppSurroundings.prototype.fade = function(object, opacity){
    if(this.animations[object.id]){
        // stop animation, if existing animation going one way or another
        TWEEN.remove(this.animations[object.id]);
    }
    if(object.material.transparent !== true){
        object.material.transparent = true;
    }
    var duration = AppCameraConfig.surroundings.fadeDuration || 700;
    this.animations[object.id] = new TWEEN.Tween(object.material)
        .to({ opacity : opacity }, duration)
        .start();
}
AppSurroundings.prototype.editor = {
    enabled: !! 0,
    raycaster : new THREE.Raycaster(),
    mouse: new THREE.Vector3(),
    hoveredObject: null,
    intersections: null,
    highlightColor: '#d80d0c',
    enlarge: false,
    reduce: false,
    link: undefined,
    onMouseMove: function(x,y){
        var intersection = this.getIntersection(x,y);
        if(intersection !== null){
            if(this.hoveredObject === null || (this.hoveredObject !== null && intersection.name !== this.hoveredObject.name)){
                if(this.hoveredObject !== null) this.hoveredObject.material.color.setHex( this.hoveredObject._defaultColor );
                this.hoveredObject = intersection;
                this.hoveredObject._defaultColor = intersection.material.color.getHex();
                this.hoveredObject.material.color.set(this.highlightColor);
            }
        }else{
            if(this.hoveredObject !== null){
                this.hoveredObject.material.color.setHex( this.hoveredObject._defaultColor );
                this.hoveredObject = null;
            }
        }
    },
    onMouseClick: function(x,y){
        var intersection = this.getIntersection(x,y);
        if(intersection !== null) {
            if(!this.enlarge && !this.reduce) return; // press shift or ctrl to either increase building height or reduce
            var object = MFS.surroundings.group.getObjectByName(intersection.name);
            if(object){
                MFS.surroundings.group.remove(object);
            }
            var key = intersection._key;
            var data = MFS.surroundings.data[key];
            if(this.enlarge === true){
                data.height += 1;
            }else if(this.reduce === true && data.height > 1){
                data.height -= 1;
            }
            MFS.surroundings.data[key] = data;
            MFS.surroundings.createBuilding(data, key);
        }
    },
    event: function(keyCode, keyDown){
        var key = {
            shift: 16,
            ctrl: 17,
            alt: 18,
            e : 69,
        }
        switch(keyCode){
            case key.shift:    this.enlarge = keyDown;
                break;
            case key.alt:    this.reduce = keyDown; // for some reason ctrl doesnt work
                break;
            case key.e:   if(keyDown === false) this.export(); // only on key up, because key down can be hold long
                break;
        }
    },
    getIntersection: function(x,y){
        this.mouse.set(
            ( x / MFS.container.width ) * 2 - 1,
            - ( y / MFS.container.height ) * 2 + 1,
            0.5
        );
        this.raycaster.setFromCamera( this.mouse, MFS.camera );
        var intersects = this.intersections = this.raycaster.intersectObjects( [ MFS.surroundings.group ], true );
        if ( intersects.length > 0 ) {
            var res = intersects.filter(function (res) {
                return res && res.object;
            })[0];
            if (res && res.object) {
                return res.object;
            }
        }
        return null;
    },
    export: function(_type){
        if(this.link === undefined) {
            this.link = document.createElement('a');
            this.link.style.display = 'none';
            document.body.appendChild(this.link); // Firefox workaround, see #6594
        }
        var filename = 'geo.json';
        var string = JSON.stringify(MFS.surroundings.data);
        var type = _type || 'text/plain';
        var blob = new Blob( [ string ], { type: type } );
        this.link.href = URL.createObjectURL( blob );
        this.link.download = filename;
        this.link.click();
    },
}
;var AppBuildingConfig = {
    clippingInsideEnabled: CLIPPINGINSIDE, // + only needed if building has ground floors inside a model, but separated from its floorplan (like first model had)
    floorplansEnabled: FOORPLANS,
    object: { // model is in fbx
        // type: FBX_TYPE,
        // folder: './obj/v3/',
        // file: 'Build.FBX',
        // textures: '',// loads automatically on FBX
        type: MODELINFO.modelType,
        folder: MODELINFO.folder,
        file: MODELINFO.fileName,
        envFile: MODELINFO.envFile,
        textures: ''// loads automatically on FBX
        // // type: OBJ_TYPE,
        // folder: './obj/v4/',
        // file: 'Build_D.obj',
        // textures: 'Build_D.mtl', 
    },
    // object: { // when model is obj+mtl
    //     type: OBJ_TYPE',
    //     folder: 'obj/v3/',
    //     file: '01-02.obj',
    //     textures: '01-02.mtl',
    // },
    building: {
        // scale: 0.015, // v1
        // scale: 0.013, // v2
        scale: BUILDINGSCALE // v3
        // scale: 1.2
    },
    views : VIEWS,
    ground: {
        color: GROUNDCOLOR
    },
    animatedSvgChange: SVGANIMATION, // if floors should animate/fade smoothly when changing floors in top down view
}
var AppBuilding = function(){
console.log("App building");
    this.object = null;
    this.ready = false;
    this.customColors = {
        color : 0xffffff,
        emissive: 0xaaaddd,
        emissiveIntensity: 0.1,
        specular : 0x0, // default 0x0
    };
    this.allowedFloorsToHighlight = HIGHLIGHTFLOORS
    this.disabledFromHighlighting = [
        // BUILDING_FLOOR_1,
        BUILDING_GROUND
    ];
    this.highlightable = this.makeListOfHighlightables();
    this.disabled = this.makeListOfDisabledFloors();
    // this.notApartaments = {
    //     '000' : '',
    // }
    this.floor = new AppBuildingFloor();
    this.floorplan = new AppBuildingFloorplan();
    this.init();
    this.gui();
}
AppBuilding.prototype.init = function(){
    if(this.tooltips) this.tooltips.init();
    this.loadBuilding();
}
AppBuilding.prototype.isBuildingFloor = function(name){
    return this.highlightable.hasOwnProperty(name) || this.disabled.hasOwnProperty(name);
}
AppBuilding.prototype.makeListOfHighlightables = function(){
    var list = {};
    if(this.allowedFloorsToHighlight.length > 0){
        var allowed = this.allowedFloorsToHighlight;
        for(var i=0;i<allowed.length;i++)
            list[allowed[i]] = ''; // make an easy access to all highlightable floors
    }
    return list;
}
AppBuilding.prototype.makeListOfDisabledFloors = function(){
    var list = {};
    if(this.disabledFromHighlighting.length > 0){
        var disabled = this.disabledFromHighlighting;
        for(var x=0;x<disabled.length;x++)
            list[disabled[x]] = '';
    }
    return list;
}
AppBuilding.prototype.loadBuilding = function(){
    var scope = this;
    var onComplete = function(){
        scope.floor.detectFloorPositions();
        // temp - add bounding box for building
        // var bbox = new THREE.Box3().setFromObject(object);
        // var helper = new THREE.Box3Helper( bbox, 0x00ff00 );
        // MFS.scene.add( helper );
        // temp end
        // ready and loaded
        MFS.surroundings.show();
        MFS.roads.show();
        if(MFS.sky) MFS.sky.show();
        if(MFS.intro && MFS.intro.enabled) MFS.intro.start();
    }
    if(AppBuildingConfig.object.type === 'obj'){
        this.loadBuildingWithObjLoader(onComplete);
    }else if(AppBuildingConfig.object.type === 'fbx'){
        this.loadBuildingWithFBXLoader(onComplete);
    }else if(AppBuildingConfig.object.type === 'glb'){
        this.loadBuildingWithGLBLoader(onComplete);
    }
}
AppBuilding.prototype.loadBuildingWithObjLoader = function(callback){
    var scope = this;
    var custom = this.customColors;
    THREE.Loader.Handlers.add( /\.dds$/i, new THREE.DDSLoader() );
    var mtlLoader = new THREE.MTLLoader();
    var objLoader = new THREE.OBJLoader();
    mtlLoader.setPath( AppBuildingConfig.object.folder )
        .load( AppBuildingConfig.object.textures, function ( materials ) {
            materials.preload();
            objLoader.setPath( AppBuildingConfig.object.folder )
                .setMaterials( materials )
                .load( AppBuildingConfig.object.file, function ( object ) {
                    // var group = new THREE.Group();
                    // var cutBuilding = false;
                    var names = [];
                    for(var i=0;i<object.children.length;i++){
                        // console.log('#'+i, object.children[i].name); // temp - for debugging names
                        names.push(object.children[i].name);
                        // if(scope.highlightable.hasOwnProperty(object.children[i].name)){
                        // if(cutBuilding) group.add(object.children[i]);
                        // object.children[i]._highlight = true;
                        // qqli
                        // object.children[i]._name = scope.highlightable[object.children[i].name];
                        // modify building color params a bit
                        if(object.children[i].material.hasOwnProperty('color')){
                            object.children[i].material.color.setHex(custom.color);
                            object.children[i].material.emissive.setHex(custom.emissive);
                            object.children[i].material.emissiveIntensity = custom.emissiveIntensity;
                        }
                        // }else{
                        //     if(!cutBuilding) object.remove(object.children[i]);
                        // }
                    }
                    var s = AppBuildingConfig.building.scale;
                    object.scale.set(s,s,s);
                    scope.object = object;
                    MFS.scene.add(object);
                    if(callback) callback();
                }, onGeometryProgress, onError );
        }, onTextureProgress, onError  );
    function onTextureProgress(xhr){
        MFS.loader.onTextureProgress(xhr);
    }
    function onGeometryProgress(xhr){
        MFS.loader.onProgress(xhr);
    }
    function onError(xhr){
        MFS.loader.onError(xhr);
    }
}
AppBuilding.prototype.loadBuildingWithFBXLoader = function(callback){
    var scope = this;
    var custom = this.customColors;
    var file = AppBuildingConfig.object.folder + '' + AppBuildingConfig.object.file;
    var names = [];
    MFS.loader.progress.loaded.textures = true; // fbx dont need to load textures manually, so this is not needed.
    var loader = new THREE.FBXLoader();
    loader.load( file, function ( object ) {
        var childrens = object.children;
        for(var i=0;i<childrens.length;i++){
          // BUG FIX - cloned objects share same material, so single floorplan cant be highlighted. Recreating material fixes the issue
          var original = childrens[i].material.clone();
          var material = new THREE.MeshPhongMaterial();
          for(var p in original){
              if(p === 'uuid') continue; // keep material id unique
              if(material.hasOwnProperty(p)) material[p] = original[p];
          }
          childrens[i].material = material; // set child material
          childrens[i].material.color.setHex(custom.color);
          childrens[i].material.emissive.setHex(custom.emissive);
          childrens[i].material.emissiveIntensity = custom.emissiveIntensity;
          console.log(childrens[i].material)
          childrens[i].material.map.needsUpdate = true; // make sure to trigger update
          names.push(childrens[i].name);
        }
        var s = AppBuildingConfig.building.scale;
        object.scale.set(s,s,s);
        scope.object = object;
        MFS.scene.add(object);
        if(callback) callback();
    }, onProgress, onError);
    loader.load( AppBuildingConfig.object.folder + 'city-map3.fbx', function ( object ) {
      object.children[5].material.color.setHex( 0xdfddd2 );
      object.children[6].children.forEach(function(build) {
        build.material.color.setHex( 0xdfddd2 )
      });
      object.scale.set(0.04,0.04,0.04);
      if (MFS.camera._secondary) {
        MFS.camera._secondary.getPotentialCameraViewBlockers(object.children[6], function(){
          MFS.camera._secondary.onChange();
        });
      } else {
        console.warn('Forgot to init secondary camera?');
      }
      MFS.scene.add(object);
    }, onProgress, onError);
    function onProgress(xhr){
        MFS.loader.onProgress(xhr);
    }
    function onError(xhr){
        MFS.loader.onError(xhr);
    }
}

AppBuilding.prototype.loadBuildingWithGLBLoader = function(callback){
    
    console.log(THREE.REVISION)
    var scope = this;
    var custom = this.customColors;
    var file = AppBuildingConfig.object.folder + '' + AppBuildingConfig.object.file;
    var envFile = AppBuildingConfig.object.folder + '' + AppBuildingConfig.object.envFile;
    var names = [];
    MFS.loader.progress.loaded.textures = true; // fbx dont need to load textures manually, so this is not needed.
    var loader = new THREE.GLTFLoader();
    THREE.DRACOLoader.setDecoderPath( '/libs/OE_Theme/js/vendor/draco/' );

    loader.setDRACOLoader( new THREE.DRACOLoader() );

    var loader = new THREE.GLTFLoader();
    loader.setDRACOLoader( new THREE.DRACOLoader() );
    loader.load( file, function ( gltf ) {
        MFS.manager.SetState(4);
        const object = gltf.scene;
        object.traverse(m => {
            //console.log(m.name)
            if (m.isMesh) {
                const material = new THREE.MeshLambertMaterial({
                    needsUpdate: true,
                    transparent: true,
                    opacity: 1.0,
                    specular: 0xffffff,
                    color: 0xffffff,
                    emissive: 0xeeeeee,
                    emissiveIntensity: 0.35
                });
                var original = m.material.clone();
                material.map = original.map;
                material.name = original.name;
                material.shininess = 2;
                m.material = material;
                names.push(m.name);
            }
        })
        var s = AppBuildingConfig.building.scale;
        object.scale.set(s,s * 1.7,s);
        object.rotation.y = -Math.PI  * 5  / 4;
        // object.rotation.y = Math.PI * 7 / 20;
        scope.object = object;
        MFS.scene.add(object);
        if(callback) callback();
    }, onProgressBuilding, null);

    // var fbxloader = new THREE.FBXLoader();
    loader.load( envFile, function ( gltf ) {
        MFS.manager.SetState(1);
        const object = gltf.scene;
        //console.log(object)

        const material = new THREE.MeshPhongMaterial({
            color: 0xdfddd2,
            transparent: true,
            opacity: 0.3,
        });
        object.traverse(m => {
            if (m.isMesh) {
                if (m.name !== "EXPORT_GOOGLE_SAT_WM") {
                    m.material = material;
                    m.material.needsUpdate = true;
                }   
            }
        })
        var s = AppBuildingConfig.building.scale;
        console.log(s)
        object.scale.set(s,s * 0.4,s);
        object.rotation.y = -Math.PI  * 5  / 4;
    //   object.children[5].material.color.setHex( 0xdfddd2 );
    //   object.children[6].children.forEach(function(build) {
    //     build.material.color.setHex( 0xdfddd2 )
    //   });
    //   object.scale.set(0.04,0.04,0.04);
    //   if (MFS.camera._secondary) {
    //     MFS.camera._secondary.getPotentialCameraViewBlockers(object.children[6], function(){
    //       MFS.camera._secondary.onChange();
    //     });
    //   } else {
    //     console.warn('Forgot to init secondary camera?');
    //   }
      MFS.scene.add(object);
    }, onProgressEnv, onError);
    
    function onProgressBuilding(xhr){
        MFS.loader.onProgress(xhr);
    }

    function onProgressEnv(xhr){
        MFS.loader.onProgress(xhr);
    }
    function onError(xhr){
        MFS.loader.onError(xhr);
    }
}

AppBuilding.prototype.gui = function(){
    // this.clippingGui();
    var settings = {
        color: this.customColors.color, // Color of the material, by default set to white (0xffffff).
        emissive:  this.customColors.emissive, // Emissive (light) color of the material, essentially a solid color unaffected by other lighting. Default is black.
        emissiveIntensity: this.customColors.emissiveIntensity, // Intensity of the emissive light. Modulates the emissive color. Default is 1.
        specular: this.customColors.specular,  // This defines how shiny the material is and the color of its shine.
        shininess: 9.8, // 30 default, How shiny the .specular highlight is
        // metalness: 1.0,
        // roughness: 0.4,
    };
    if(typeof MFS.gui === 'undefined') return;
    var gui = MFS.gui.addFolder( "Main Building" );
    gui.addColor(settings, "color").onChange( function( value ) {
        change("color", value);
    } );
    gui.addColor(settings, "emissive").onChange( function( value ) {
        change("emissive", value);
    } );
    gui.add(settings, "emissiveIntensity", 0, 1).onChange( function( value ) {
        change("emissiveIntensity", value);
    } );
    gui.addColor(settings, "specular").onChange( function( value ) {
        change("specular", value);
    } );
    // gui.add(settings, "shininess", 0, 100).onChange( function( value ) {
    //     change("shininess", value);
    // } );
    // gui.add( settings, "metalness", 0, 1 ).onChange( function( value ) {
    //     change("metalness", value);
    // } );
    // gui.add( settings, "roughness", 0, 1 ).onChange( function( value ) {
    //     change("roughness", value);
    // } );
    var scope = this;
    var timeout = null;
    function change(key, value){
        var isColor = false;
        switch(key){
            case 'color':
            case 'emissive':
            case 'specular':    //value = value.replace('#','0x'); // convert to hex
                                isColor = true;
                break;
        }
        clearTimeout(timeout);
        timeout = setTimeout(function(){
            for(var i=0;i<scope.object.children.length;i++){
                if(isColor){
                    if( scope.object.children[i].material.hasOwnProperty(key)) {
                        scope.object.children[i].material[key].setHex(value);
                    }else{
                        console.log('missing param',key, i, scope.object.children[i].material);
                    }
                }else{
                    scope.object.children[i].material[key] = value;
                }
            }
        }, 250);
    }


};var currentFloor;
var side_area = true;
$('#model-3d-wrap').on('mouseenter',function(){
    side_area = true;
})
$('#model-3d-wrap').on('mouseleave',function(){
    side_area = false;
})
$('#filter-side').one('mousemove',function(){
    side_area = false;
})
AppBuilding.prototype.tooltips = {
    mouse: {
        x: 0,
        y: 0,
    },
    offset : { // when left nav visible, deal with it
        x : 0,
        y : 0,
    },
    ready : false,
    container: {
        tooltip: undefined,
    },
    visible : false,
    updateRequired: false,
    currentFloor: null,
    init: function(){
        this.container.tooltip = document.getElementById('buildingTooltip');
        this.container.bbox = document.getElementById('bbox');
        var defaultOffsetX = 40;
        var leftNav = document.getElementsByClassName('filter-side__wrap');
        if(typeof leftNav !== 'undefined' && leftNav.hasOwnProperty(0)){
            // this.offset.x =  leftNav[0].offsetWidth + defaultOffsetX;
            //console.log(document.getElementsByClassName('building_wrapper')[0].style);
            // const rect = MFS.renderer.domElement.getBoundingClientRect();
            // this.offset.x = document.getElementsByClassName('building_wrapper')[0].style.left;
        }else{
            this.offset.x = defaultOffsetX;
        }
        this.offset.y = 3;
        this.ready = true;
    },
    update: function(){
        if(side_area) {
            if(AppBuildingConfig.floorplansEnabled && MFS.building.floorplan.visible){
                if(this.visible) this.toggleVisibility(false); // hide floor tooltips when floorplan is visible
                return;
            }
            if( ! this.updateRequired) return;
            this.toggleVisibility(this.visible);
            if(this.visible){
                var newHtml = "<strong>"+ MFS.building.floor.fullFloorName(this.currentFloor)+"</strong>";
                // if( ! MFS.building.notApartaments.hasOwnProperty(this.currentFloor)){
                //     newHtml += " - 5 Units from 1500$";
                // }
                this.container.tooltip.innerHTML = newHtml;
            }
        } else {
            this.container.tooltip.style.display = 'none';
        }
    },
    change: function(floorName, x,y){
        // console.log(floorName);
        if( MFS.building.floor.floorNames.hasOwnProperty(floorName)){
            if(this.currentFloor !== floorName) {
                this.currentFloor = floorName;
                this.visible = true;
                this.updateRequired = true;
                this.update();
            }
            if(this.mouse.x !== x || this.mouse.y !== y){
                this.changePosition(x,y);
            }
        }else{
            this.currentFloor = null;
            this.visible = false;
            this.toggleVisibility(this.visible);
        }
    },
    debugBbox : function(object){
        // if( ! MFS.building.boundingBoxes.hasOwnProperty(floorName)){
        //     console.log('MISSING', floorName);
        //     return;
        // }
        // convert 3d to 2d
        // var min = new THREE.Vector3().copy(MFS.building.boundingBoxes[floorName].min);
        // var max = new THREE.Vector3().copy(MFS.building.boundingBoxes[floorName].max);
        // var min2d = convertTo2d(min);
        // var max2d = convertTo2d(max);
        // var width = max2d.x - min2d.x;
        // var height = max2d.y - min2d.y;
        // var floor = MFS.building.boundingBoxes[floorName];
        // console.log('CHECK', floorName, floor.bbox);
        var center = new THREE.Vector3();
        var geometry = object.geometry;
        geometry.computeBoundingBox();
        geometry.boundingBox.getCenter( center );
        object.localToWorld( center );
        var size = geometry.getSize();
        var bbox = getBbox(object);
        var min = convertTo2d(bbox.min);
        var max = convertTo2d(bbox.max);
        // var min = object.position.applyMatrix4(object.matrixWorld).project(MFS.camera);
        // var max = object.position.applyMatrix4(object.matrixWorld).project(MFS.camera);
        // console.log('bbox 2d', min, max);
        var left = min.x;
        var top = min.y;
        var width = Math.abs(max.x - min.x);
        var height = Math.abs(max.y  - min.y);
        this.container.bbox.style.left = left+'px';
        this.container.bbox.style.top = top+'px';
        this.container.bbox.style.width = width+'px';
        this.container.bbox.style.height = height+'px';
        function getBbox(mesh){
            // mesh.updateMatrixWorld(true);
            // mesh.geometry.computeBoundingBox();
            var min = new THREE.Vector3().copy(mesh.geometry.boundingBox.min);
            var max = new THREE.Vector3().copy(mesh.geometry.boundingBox.max);
            mesh.localToWorld(min);
            mesh.localToWorld(max);
            return {
                min: min,
                max: max,
            }
        }
        function normalizedToPixels(coord, renderWidthPixels, renderHeightPixels) {
            var halfScreen = new THREE.Vector2(renderWidthPixels/2, renderHeightPixels/2)
            return coord.clone().multiply(halfScreen);
        }
        function convertTo2d(vec){
            var width = MFS.container.width;
            var height = MFS.container.height;
            var vector = vec.clone();
            var widthHalf = (width/2);
            var heightHalf = (height/2);
            vector.project(MFS.camera);
            vector.x = ( vector.x * widthHalf ) + widthHalf;
            vector.y = - ( vector.y * heightHalf ) + heightHalf;
            vector.z = 0;
            return {
                x : vector.x,
                y : vector.y,
            };
        }
    },
    changePosition : function(x,y){
        //console.log("change position", x, y);
        // TODO - somehow move tooltip on the right of building
        this.mouse.x = x;
        this.mouse.y = y;
        
        if (this.offset.x === 0) {
            const rect = MFS.renderer.domElement.getBoundingClientRect();
            this.offset.x = rect.x + 30;
        }
        // leftnav + mouse.x position
        // this.container.tooltip.style.left = this.offset.x + x +'px';
        // imageHeight/2 to center it + mouse.y
        this.container.tooltip.style.top = this.offset.y + y - parseInt(this.container.tooltip.offsetHeight / 2) +'px';
        this.container.tooltip.style.left = this.offset.x + x +'px';
        // this.container.tooltip.style.top = y + 'px';
    },
    toggleVisibility : function(visible){
        // console.log("visible==="+visible);
        if(visible && this.container.tooltip.style.display !== 'block'){
            this.container.tooltip.style.display = 'block' +
                '';
        }else if(!visible && this.container.tooltip.style.display !== 'none'){
            this.container.tooltip.style.display = 'none';
        }
    },
    hide: function(){
        this.toggleVisibility(false);
    }
}
AppBuilding.prototype.getCurrentFloor = function()
{
    return this.currentFloor;
};var side_area = true;
$('#model-3d-wrap').on('mouseenter',function(){
    side_area = true;
})
$('#model-3d-wrap').on('mouseleave',function(){
    side_area = false;
})
$('#filter-side').one('mousemove',function(){
    side_area = false;
})
var AppBuildingHighlight = function(){

    this.raycaster = new THREE.Raycaster();
    this.mouse = new THREE.Vector3();
    this.hoveredObject = null; // floor hovered with mouse
    this.activatedFloor = null; // floor that is clicked

    this.highlightColor = "#d8831d"; // this may need adjustments based on lights around

    this.$body = $('body');
    this.lastCursor = null;
    this.cursors = {
        pointer: 'cursor-pointer',
        disabled: 'cursor-disabled',
    }

    this.gui();
}


/**
 * @param x -> event.layerX
 * @param y -> event.layerY
 */
// on mouse movement this function is triggered.
AppBuildingHighlight.prototype.getIntersectedObject = function(x,y){
    var intersects = this.getIntersects( x,y );
    if ( intersects.length > 0 ) {
        var res = intersects.filter(function (res) {
            return res && res.object;
        })[0];
        if (res && res.object) {
            return res.object;
        }
    }
    return null;
}

AppBuildingHighlight.prototype.forceClear = function(){
    this.update(-999, -999);
}

AppBuildingHighlight.prototype.update = function(x,y){
    if(side_area) {
        if(typeof MFS.building === 'undefined' || MFS.building.object === null || MFS.building.object.children.length === 0) return;

        if(typeof MFS.intro !== 'undefined' && MFS.intro.active === true){
            return;
        }

        if(MFS.controls.active){
            // console.log('controls active');
            return;
        }

        var intersection = this.getIntersectedObject(x,y);
        if(intersection === null){
            this.changeCursor(null);
            this.resetHoveredFloorColor();
            if(MFS.building.tooltips)  MFS.building.tooltips.change(null);
            return;
        }

        if(MFS.building.tooltips) MFS.building.tooltips.changePosition(x, y);

        // if nothing is being hovered, change cursor back to default
        var nothingHovered = true;

        // check if floor is allowed to be hovered
        if(MFS.building.highlightable.hasOwnProperty(intersection.name)){

            nothingHovered = false;

            // if there's a activated (clicked) floor and now we are hovering same floor, do not change its color or do anything with it
            // if coming from another floor, then just remove old hovered floor highlight and return
            if(this.activatedFloor !== null && this.activatedFloor.id === intersection.id) {

                this.resetHoveredFloorColor(); // change old hovered object color

            }else if(this.hoveredObject !== null && this.hoveredObject.id === intersection.id){

                // same floor - do nothing

            }else{ // if different floor, then color it

                // clean old floor highlight
                if(this.hoveredObject !== null){
                    this.hoveredObject.material.color.setHex( this.hoveredObject._defaultColor );
                }

                // set new floor highlight
                this.hoveredObject = intersection;
                this.hoveredObject._defaultColor = intersection.material.color.getHex();
                this.hoveredObject.material.color.set(this.highlightColor);

                this.changeCursor(this.cursors.pointer);

                if(MFS.building.tooltips) MFS.building.tooltips.change(intersection.name, x,y);

            }
        }

        // hovering over hotel, show tooltip plus change mouse icon to "not clickable"
        if(MFS.building.disabled.hasOwnProperty(intersection.name)){
            nothingHovered = false;
            this.resetHoveredFloorColor();
            this.changeCursor(this.cursors.disabled);
            if(MFS.building.tooltips) MFS.building.tooltips.change(intersection.name, x,y);
        }

        if(nothingHovered){
            this.resetHoveredFloorColor();
            this.changeCursor(null);
            if(MFS.building.tooltips)  MFS.building.tooltips.change(null);
        }
    }
}

AppBuildingHighlight.prototype.changeCursor = function(cursorClassName){

    if(this.lastCursor === cursorClassName){
        return;
    }

    this.lastCursor = cursorClassName;

    if(cursorClassName !== null && typeof  cursorClassName !== 'undefined'){
        this.$body
            .removeClass(this.cursors.pointer)
            .removeClass(this.cursors.disabled)
            .addClass(cursorClassName);
    }else{
        this.$body
            .removeClass(this.cursors.pointer)
            .removeClass(this.cursors.disabled);
    }



}

AppBuildingHighlight.prototype.triggerZoomOut = function(){

    if(this.activatedFloor !== null){
        AppCameraAnimation.zoomOut(MFS.camera);
    }

    this.clearActivatedFloor();
    if(typeof AppSecondaryInfo !== 'undefined') AppSecondaryInfo.hide();
    if(typeof AppSearch !== 'undefined') AppSearch.showAllUnits();

}


AppBuildingHighlight.prototype.topDownView = function(x,y){
    
    MFS.manager.SetState(5);
    
    var intersection = this.getIntersectedObject(x,y);
    if(intersection === null){
        if(AppBuildingConfig.floorplansEnabled){
            MFS.building.floorplan.checkStatus();
        }
        return;
    }else if((MFS.highlight.hoveredObject === null || MFS.highlight.hoveredObject.id !== intersection.id) && (isMobile == false)){
        return;
    }

    // show floorplan (svg) if its enabled
    if(AppBuildingConfig.floorplansEnabled) {
        // get random available units
        if(typeof AppSearch !== 'undefined') AppSearch.randomUnitFilter();

        // prepare floorplan
        MFS.building.floorplan.prepare(intersection.name);
    }

    // debug clicked obj
    // if(intersection !== null) console.log('check object', intersection.id, intersection.name);

    // if no intersection OR highlighting on intersected object is not allowed - clear highlight, hide bottom info
    if(intersection === null || ! MFS.building.highlightable.hasOwnProperty(intersection.name)){
        if(AppBuildingConfig.floorplansEnabled) {
            MFS.building.floorplan.hide();
        }
    }

}

// on floor click, this function is triggered
// this is currently not used, because floorplans are being displayed
AppBuildingHighlight.prototype.zoomInOnFloor = function(x,y){


    if(MFS.controls.active){
        console.log('zoomInOnFloro denied - controls active');
        return;
    }

    var intersection = this.getIntersectedObject(x,y);

    // console.log('check object', intersection.id, intersection.name);

    // if no intersection OR highlighting on intersected object is not allowed - clear highlight, hide bottom info
    if(intersection === null || ! MFS.building.highlightable.hasOwnProperty(intersection.name)){

        this.triggerZoomOut();
        return;
    }

    console.log('activated', intersection.name, intersection.id);

    // clicking again on same floor, should do nothing
    if(this.activatedFloor !== null && this.activatedFloor.id === intersection.id) {

        return;

    // if old activated floor exists, clear its highlight
    }else if(this.activatedFloor !== null){

        this.activatedFloor.material.color.setHex( this.activatedFloor._defaultColor );
    }


    // asisgn activate floor to a found intersection
    // then highlight and activate new floor
    // make sure this floor can be highlighted
    if(MFS.building.highlightable.hasOwnProperty(intersection.name)){

        this.activatedFloor = intersection;
        this.activatedFloor.material.color.set(this.highlightColor); // dont worry about _defaultColor, it is set in hover function automatically

        var params = {
            name: intersection.name,
        };

        if(typeof AppSearch != 'undefined') AppSearch.filter(params);
        if(typeof AppSecondaryInfo != 'undefined'){

            params.info = AppSecondaryInfo.getInfoForFloor(params.name);
            AppSecondaryInfo.show(params);
        }

        var floorCenterPosition = new THREE.Vector3();
        if(MFS.building.boundingBoxes.hasOwnProperty(intersection.name)){
            floorCenterPosition.copy(MFS.building.boundingBoxes[intersection.name].center);
        }else{

            console.warn('Floor does not have its center calculated', intersection.name);
            // and use just default camera target position?
            floorCenterPosition.copy(MFS.controls.target);
        }

        AppCameraAnimation.zoomIn(MFS.camera, floorCenterPosition);

        if(typeof AppSearch !== 'undefined'){
            AppSearch.randomUnitFilter();
        }
        if(typeof AppSecondaryInfo !== 'undefined'){
            AppSecondaryInfo.changePreviews(getElevation(params.name));
        }
    }


    function getElevation(name){

        var elevations = [125,200,260];
        var shortNumber = getFloorNumberByName(name, FLOORNAMES); // integer

        switch(name){
            case '002' :
            case '003' :
            case '004' :
            case '005' : return elevations[0];
                break;

            case '006' :
            case '007' :
            case '008' :
            case '009' : return elevations[1];
                break;

            case '010' :
            case '11' :
            case '012' :
            case '013' :
            case '014' : return elevations[2];
                break;
        }

        return elevations[0];
    }

}

AppBuildingHighlight.prototype.resetHoveredFloorColor = function(){

    if(this.hoveredObject === null) return;

    if(this.activatedFloor !== null && this.activatedFloor.id === this.hoveredObject.id ){
        // do not clear color of activated item, when hover status is beeing removed
    }else{
        this.hoveredObject.material.color.setHex( this.hoveredObject._defaultColor );
    }

    this.hoveredObject = null;

}


AppBuildingHighlight.prototype.clearActivatedFloor = function(){

        if(this.activatedFloor !== null) {
            this.activatedFloor.material.color.setHex(this.activatedFloor._defaultColor);
            this.activatedFloor = null; // make sure to change its color first before removing activated floor
        }



}

AppBuildingHighlight.prototype.getIntersects = function(x,y){

    this.mouse.set(
        ( x / MFS.container.width ) * 2 - 1,
        - ( y / MFS.container.height ) * 2 + 1,
        0.5
    );
    this.raycaster.setFromCamera( this.mouse, MFS.camera );
    return this.raycaster.intersectObjects( [ MFS.building.object ], true );
}

AppBuildingHighlight.prototype.gui = function(){

    if(typeof MFS.gui === 'undefined') return;

    var openByDefault = false;
    var scope = this;
    var params = {
        color : this.highlightColor,
    }

    var group = MFS.gui.addFolder('Highlight');
    group.addColor(params, 'color').onChange(function (val) {
        scope.highlightColor = val;
    });

    if(openByDefault) group.open();
}

;var AppBuildingFloor = function(){

    this.floorDimEnabled = false;

    // because '11' does not follow order and is first element, when used together with 002, 003, etc. so create an array with strict positioning
    // this.floorsInOrder = ['014','013','012','11','010','009','008','007','006','005','004','003','002'];

    // floors in order from top to bottom. For knowing vertical floor arrangement and fading out floors above or below when showing floorplans
    this.floorsInOrder = FLOORORDER;

    this.clippedObjectName = 'staticGround'; // TODO - missing floor/ground plane to hide building emptyness inside

    this.floorNames = this.makeFloorNames();

    // starting from 8th floor and up
    this.clippingValues = [
        // { floor: BUILDING_FLOOR_8, clip: 30 },
        // { floor: BUILDING_FLOOR_9, clip: 33 },
        // { floor: BUILDING_FLOOR_10, clip: 36 },
        // { floor: BUILDING_FLOOR_11, clip: 39 },
        // { floor: BUILDING_FLOOR_12, clip: 42 },
        // { floor: BUILDING_FLOOR_13, clip: 45 },
        // { floor: BUILDING_FLOOR_14, clip: 48 },
        // { floor: BUILDING_FLOOR_15, clip: 51 },
        // { floor: BUILDING_FLOOR_16, clip: 54 },
        // { floor: BUILDING_FLOOR_17, clip: 57 },
        // { floor: BUILDING_FLOOR_18, clip: 60 },
        // { floor: BUILDING_FLOOR_19, clip: 63 },
        // { floor: BUILDING_FLOOR_20, clip: 66 },
        // { floor: BUILDING_FLOOR_21, clip: 69 },
        // { floor: BUILDING_FLOOR_22, clip: 72 },
        // { floor: BUILDING_FLOOR_23, clip: 75 },
        // { floor: BUILDING_FLOOR_24, clip: 78 },
        // { floor: BUILDING_FLOOR_25, clip: 81 },
        // { floor: BUILDING_FLOOR_26, clip: 84 },
        // { floor: BUILDING_FLOOR_27, clip: 87 },
        // { floor: BUILDING_FLOOR_28, clip: 90 },
        // { floor: BUILDING_FLOOR_29, clip: 93 },
    ];

    this.boundingBoxes = {};

    this.localClippingEnabled = AppBuildingConfig.clippingInsideEnabled;
    this.localClippingPlane = this.getLocalClippingPlane();
    this.globalClippingPlane = this.getGlobalClippingPlane();


}



AppBuildingFloor.prototype.makeFloorNames = function(){

    var names = {};
    for(var i=0;i<FLOORNAMES.length;i++)
        names[ FLOORNAMES[i].floor ] = FLOORNAMES[i].name;
    return names;
}

AppBuildingFloor.prototype.getMeshOfFloorBelow = function(name){

    var foundCurrent = false;
    var floorBelow = null;
    var iLen = this.floorsInOrder.length;
    for(var i=0; i< iLen; i++){

        if(foundCurrent){
            floorBelow = this.floorsInOrder[i];
            break;
        }

        if(this.floorsInOrder[i] === name){
            foundCurrent= true;
            continue;
        }

    }

    // last floor highlighted
    if(floorBelow === null){
        floorBelow = this.floorsInOrder[iLen-1];
    }

    return MFS.building.object.getObjectByName(floorBelow);

}

AppBuildingFloor.prototype.detectFloorPositions = function(){

    var positionalData = {};

    var child, position = new THREE.Vector3();

    // debug stuff - show center of floor
    var material = new THREE.LineBasicMaterial({
        color: 0xff0000
    });
    var lineLength = 50;
    var geometry = new THREE.Geometry();
    geometry.vertices.push(
        new THREE.Vector3( -lineLength, 0, 0 ),
        new THREE.Vector3( 0, 0, 0 ),
        new THREE.Vector3( lineLength, 0, 0 )
    );
    var geometry2 = new THREE.Geometry();
    geometry2.vertices.push(
        new THREE.Vector3( 0, 0, -lineLength/2 ),
        new THREE.Vector3( 0, 0, 0 ),
        new THREE.Vector3( 0, 0, lineLength/2 )
    );
    var horizontalLine = new THREE.Line( geometry, material );
    var verticalLine = new THREE.Line(geometry2, material);
    // debug stuff end

    MFS.building.object.updateMatrixWorld(); // make sure things are updated

    for(var i=0;i<MFS.building.object.children.length;i++){
        child = MFS.building.object.children[i];

        if( child.hasOwnProperty('name') && MFS.building.isBuildingFloor(child.name) ){

            var center = getCenterPoint(child);
            var bbox = new THREE.Box3().setFromObject(child);
            var size = new THREE.Vector3();
            bbox.getSize(size);

            // console.log('--- SIZE?', size);
            // console.log('check floor size', child.name, size);

            positionalData[ child.name ] = {
                center: center,
                size: size,
            }

             //debugCenter(positionalData);

            // temp - add bounding box for each floor
            // var bbox = new THREE.Box3().setFromObject(child);
            // var helper = new THREE.Box3Helper( bbox, Math.random() * 0xffffff );
            // MFS.scene.add( helper );
            // temp end
        }
    }

    this.boundingBoxes = positionalData;

    function getCenterPoint(mesh) {
        var center = new THREE.Vector3();
        var geometry = mesh.geometry;
        geometry.computeBoundingBox();
        geometry.boundingBox.getCenter( center );
        mesh.localToWorld( center );

        return center;
    }

    function debugCenter(position){

        var h = horizontalLine.clone();
        h.position.copy(position);
        MFS.scene.add(h);

        var v = verticalLine.clone();
        v.position.copy(position);
        MFS.scene.add(v);

    }

    function getBbox(mesh){

        var min = new THREE.Vector3().copy(mesh.geometry.boundingBox.min);
        var max = new THREE.Vector3().copy(mesh.geometry.boundingBox.max);

        mesh.localToWorld(min);
        mesh.localToWorld(max);

        return {
            min: min,
            max: max,
        }
    }

    function get2dBoundingBox(mesh){

        var boundingBox2D = computeScreenSpaceBoundingBox(mesh, MFS.camera);

        // Convert normalized screen coordinates [-1, 1] to pixel coordinates:
        var pixelCoordScale = normalizedToPixels(boundingBox2D.getSize(), MFS.container.width, MFS.container.height);
        var pixelCoordCenter = normalizedToPixels(boundingBox2D.getCenter(), MFS.container.width, MFS.container.height);

        return {
            center: pixelCoordCenter,
            scale: pixelCoordScale,
        }

        // overlayBox.scale.set(pixelCoordScale.x, pixelCoordScale.y, 1);
        // overlayBox.position.set(pixelCoordCenter.x, pixelCoordCenter.y, 0)
        // overlayBox.needsUpdate = true;

    }

    function computeScreenSpaceBoundingBox(mesh, camera) {

        var vertices = mesh.geometry.vertices;
        var vertex = new THREE.Vector3();
        var min = new THREE.Vector3(1);
        var max = new THREE.Vector3(-1);

        var min2 = new THREE.Vector3().copy(mesh.geometry.boundingBox.min);
        var max2 = new THREE.Vector3().copy(mesh.geometry.boundingBox.max);

        // console.log('mesh?', mesh.geometry);

        // for (var i = 0; i < vertices.length; i++) {
        //     var vertexWorldCoord = vertex.copy(vertices[i]).applyMatrix4(mesh.matrixWorld);
        //     var vertexScreenSpace = vertexWorldCoord.project(camera);
        //     min.min(vertexScreenSpace);
        //     max.max(vertexScreenSpace);
        // }

        // return new THREE.Box2(min, max);
        return new THREE.Box2(min2, max2);
    }

    function normalizedToPixels(coord, renderWidthPixels, renderHeightPixels) {
        var halfScreen = new THREE.Vector2(renderWidthPixels/2, renderHeightPixels/2)
        return coord.clone().multiply(halfScreen);
    }

    // parent.updateMatrixWorld();
    // var vector = new THREE.Vector3();
    // vector.setFromMatrixPosition( child.matrixWorld );
}

AppBuildingFloor.prototype.getLocalClippingPlane = function(clipHeight){

    clipHeight = clipHeight || 60;
    return new THREE.Plane( new THREE.Vector3( 0, - 1, 0 ), clipHeight );
}

AppBuildingFloor.prototype.getGlobalClippingPlane = function(clipHeight){

    clipHeight = clipHeight || 60;
    return new THREE.Plane( new THREE.Vector3( 0, - 1, 0 ), clipHeight );
}

AppBuildingFloor.prototype.createClippingPlanes = function(height){

    height = height || 0;

    height = 50; // from bottom, do I need real height here?

    var clipPlanes = {
        x: new THREE.Plane( new THREE.Vector3( 1, 0, 0 ), height ), //x
        y: new THREE.Plane( new THREE.Vector3( 0, - 1, 0 ), height ), // y
        z: new THREE.Plane( new THREE.Vector3( 0, 0, - 1 ), height ) // z
    }

    // clipping things on y plane (how much to clip vertically on object)
    return clipPlanes.y;
}

AppBuildingFloor.prototype.disableClipping = function(){

    MFS.renderer.localClippingEnabled = false;

}


AppBuildingFloor.prototype.clipAt = function(floorName){

    if( ! AppBuildingConfig.clippingInsideEnabled) return;

    // var clipValue = this.clippingValues[floorName];
    var clipValue = 0;
    for(var i=0;i<this.clippingValues.length;i++){
        if(this.clippingValues[i].floor === floorName){
            clipValue = this.clippingValues[i].clip;
            break;
        }
    }

    if(clipValue === 0){
        console.warn('NO CLIPPING: Floor not found for clipping', floorName, this.clippingValues);
        return;
    }

    var object = MFS.building.object.getObjectByName(this.clippedObjectName);

    if(object){

        var noClipping = Object.freeze( [] );
        var localClip = this.getLocalClippingPlane(clipValue);

        // object.material.clippingPlanes = [ this.localClippingPlane ]; // if need to use it with gui, reenable this one
        object.material.clippingPlanes = [ localClip ];
        object.material.clipShadows = true; // dont have shadows atm, but leave it in case we do

        // console.log('CLIP', object.material);

        MFS.renderer.localClippingEnabled = this.localClippingEnabled;
        // MFS.renderer.clippingPlanes = [ this.globalClippingPlane ];
        MFS.renderer.clippingPlanes = noClipping;

    }

}

AppBuildingFloor.prototype.dimFloor = function(object){

    if( ! this.floorDimEnabled ) return;

    var opacity = 0.3; // from 0 to 1
    var duration = 600;//ms

    //qqli
    object.material.transparent = true;
    new TWEEN.Tween(object.material)
        .to({ opacity : opacity }, duration)
        .start();

}


// cancel all dim floors so that surroundings do not xray main building
AppBuildingFloor.prototype.cancelDimOnFloors = function(){
    if( ! this.floorDimEnabled ) return;

    for(var i=0; i< MFS.building.object.children.length; i++){
        if(this.floorNames.hasOwnProperty(MFS.building.object.children[i].name)){

            MFS.building.object.children[i].material.transparent = false;
        }
    }

}

AppBuildingFloor.prototype.cancelFloorDim = function(object, callback){

    if( ! this.floorDimEnabled ) return;

    var opacity = 1; // restore back to full opacity, 1
    var duration = 600;//ms

    // qqli
    object.material.transparent = true;
    new TWEEN.Tween(object.material)
        .to({ opacity : opacity }, duration)
        .onComplete(function(){
            if(callback) callback();
        })
        .start();

}

AppBuildingFloor.prototype.fadeOut = function(list){
    if(list.length === 0) return;
    var opacity = 0; // hidden
    var duration = 1000;
    var delay = 0;
    var onCompleteState = 3;

    for(var i in list){
        this.animate(list[i], opacity, duration, delay, onCompleteState);
        // delay += 250;
    }
}

AppBuildingFloor.prototype.fadeIn = function(list){
    if(list.length === 0){
        console.log('!! fadeIn failed', list.length, list);
        return;
    }

    var opacity = 1; // visible
    var duration = 600; // faster than fade out
    var delay = 0;
    var onCompleteState = 2;

    for(var i in list){
        this.animate(list[i], opacity, duration, delay, onCompleteState);
        // delay += 25;
    }

}
AppBuildingFloor.prototype.animate = function(name, opacity, duration, delay, state){

    var object = MFS.building.object.getObjectByName(name, true );

    if(object) {

        var _delay = parseInt(delay) > 0 ? delay : 0;

        setTimeout(function(){

            object.material.transparent = true;
            new TWEEN.Tween(object.material)
                .to({opacity: opacity}, duration)
                .start().onComplete(function(){ MFS.manager.SetState(state)});

        }, _delay);

    }else{
        console.log('Animation - object not found', name);
    }

}

AppBuildingFloor.prototype.clippingGui = function(){

    if(MFS.gui){

        var Empty = Object.freeze([]);
        var localPlane = this.localClippingPlane;
        var globalPlane = this.globalClippingPlane;

        var folderLocal = MFS.gui.addFolder( 'Local Clipping' ),
            propsLocal = {

                get 'Enabled'() { return MFS.renderer.localClippingEnabled; },
                set 'Enabled'( v ) { MFS.renderer.localClippingEnabled = v; },

                get 'Plane'() { return localPlane.constant; },
                set 'Plane'( v ) { localPlane.constant = v }

            },

            folderGlobal = MFS.gui.addFolder( 'Global Clipping' ),
            propsGlobal = {

                get 'Enabled'() { return MFS.renderer.clippingPlanes !== Empty; },
                set 'Enabled'( v  ) {
                    MFS.renderer.clippingPlanes = v ? globalPlane : Empty; },

                get 'Plane'() { return globalPlane.constant; },
                set 'Plane'( v ) { globalPlane.constant = v; }

            };

        folderLocal.add( propsLocal, 'Enabled' );
        folderLocal.add( propsLocal, 'Plane', 0, 100 );

        folderGlobal.add( propsGlobal, 'Enabled' );
        folderGlobal.add( propsGlobal, 'Plane', -0.4, 3 );

    }

}

AppBuildingFloor.prototype.fullFloorName = function(currentFloor){
    return this.floorNames[ currentFloor ];
}

AppBuildingFloor.prototype.dummy = function(){};var AppBuildingFloorplan = function() {
    this.enabled = true;
    this.visible = false;
    this.svgHolder = $('#floorplan');
    this.currentSvgContainer = null;
    this.currentSvgParams = {};
    this.nextSvgContainer = null;
    this.config = {
        topFloor: BUILDING_FLOOR_11,
    };
    this.svgFolder = SVGFOLDER;
    // list of floorplan SVGs
    var svginfo = {};
    svginfo.default = { plan: SVGMAPPING[0].fileName, offsetTop: 0, offsetBottom: 0 }; // if floor name not found in the list, uses this default floorplan
    SVGMAPPING.forEach(function(SVGArray) {
        svginfo[SVGArray.floor] = { plan: SVGArray.fileName, offsetTop: 0, offsetBottom: 0 };
    });
    this.svg = svginfo;
    this.cache = {};
    if (!AppBuildingConfig.floorplansEnabled) {
        console.warn('AppBuildingFloorplan initiated, but NOT ENABLED', AppBuildingConfig.floorplansEnabled);
    }
    this.resizeTimeout = null;
    this.tooltip = new AppBuildingFloorplanTooltip();
    this.busy = false;
    this.availableUnits = [];
}

AppBuildingFloorplan.prototype.resize = function() {
    if (this.visible) {
        // do resize
        clearTimeout(this.resizeTimeout);
        var scope = this;
        // this is a heavy function, so better delay resize until user stopped resizing screen
        this.resizeTimeout = setTimeout(function() {
            var sSize = getObjectOnScreenSize(scope.floorplanBelow, MFS.camera, MFS.renderer);
            if (this.currentFloorplanName == "Floor_2") sSize = sSize.multiplyScalar(1.7);
            else sSize = sSize.multiplyScalar(1.5);

            scope.sSize = sSize;
            scope.originalSize = sSize;
            console.log(scope.sSize);

            const sPos = {
                x: MFS.renderer.domElement.clientWidth / 2,
                y: MFS.renderer.domElement.clientHeight / 2
            }

            scope.sPos = sPos;
            scope.originalPos = sPos;

            scope.placeFloorplan(sSize, sPos, scope.currentSvgContainer);
        }, 100);
    }
}
AppBuildingFloorplan.prototype.getSvg = function(floorName, $element, callback) {
    var svgParams = this.svg.default;
    if (this.svg.hasOwnProperty(floorName)) svgParams = this.svg[floorName];
    this.currentSvgParams = svgParams; // for later use
    var url = this.svgFolder + '' + svgParams.plan;
    var scope = this;
    var Floor = MFS.building.floor.fullFloorName(floorName).replace('Floor ', '');
    jQuery('#floorplan').attr('data-floor', Floor);
    // get SVG as html, not as img, so that you could interact with it
    $.get(url, function(data) {
        var svg = new XMLSerializer().serializeToString(data.documentElement);
        $element.html(svg);
        // scope.cache[url] = svg;
        scope.prepSvg($element, svgParams, Floor);
        scope.tooltip.bindEvents($element, scope.currentFloorplanName);
        scope.bindMouseClick();
        //bindLGpopup();
        if (callback) callback();
    });
}

AppBuildingFloorplan.prototype.setAvailableUnits = function(number) {
    if (number < 1) number = 1;

    var floor = jQuery('#floorplan').attr('data-floor');
    
    var floors = $('.blue-hover');
    var units = [];
    $('.blue-hover').map(function() {
        if ($(this).attr('data-floor') == floor) {
            units.push($(this).attr('data-id'));
        }
    });
    this.availableUnits = units;
}

AppBuildingFloorplan.prototype.prepSvg = function($element, svgParams, Floor) {

    var groups = $element.find('g[data-type="room"]');
    var total = groups.length;
    var spaces = $element.find('g[data-type="space"]');
    var total_space = spaces.length;
    var available = this.availableUnits.length;

    getPage('frmqSearch1', Floor);

    if (total === 0 && total_space === 0) return;
    // first. prepare numbers
    for (var u = 0; u < total; u++) {
        var $group = $(groups[u]);
        var unit = parseInt($group.attr('data-unit'));
        if (typeof unit !== 'undefined' && unit >= 0) {
            var unitNumber = MFS.building.floorplan.tooltip.fullUnitNumber(unit);
            $group.attr('data-id', unitNumber);
            $($group.find('text')).text(unitNumber);
        }
    }
    // then make limited availability
    this.changeUnits($element, Floor);
}

AppBuildingFloorplan.prototype.changeUnits = function($element, Floor) {
    //getPage('frmSearch', Floor);
    this.changeAvailableUnits($element);
    this.tooltip.bindEvents($element, scope.currentFloorplanName);
}

AppBuildingFloorplan.prototype.changeAvailableUnits = function($element) {
    var floor = jQuery('#floorplan').attr('data-floor');

    var unavailableUnits = [];
    var floors = $('.blue-hover');
    var units = [];
    $('.blue-hover').map(function() {
        if (jQuery.inArray($(this).attr('data-id'), unavailableUnits) == '-1') {
            units.push($(this).attr('data-id'))
        }
        /*}*/
    });
    this.availableUnits = units;
    var $svg = $element.find('svg');

    if ($svg.length == 0)
        $svg = this.currentSvgContainer;
    if ($svg) {
        // remove available class from existing units
        $svg.find('g.available[data-type="room"]').attr('class', ''); // removeClass does not work on SVG
        // prep stuff
        var groups = $svg.find('g[data-type="room"]');
        var spaces = $svg.find('g[data-type="space"]');
        var total = groups.length + spaces.length;
        var available = this.availableUnits.length;
        // cant be more available units than amount of units
        if (available > total) available = total;
        var picked = {};
        if (available > 0) {
            $.each(this.availableUnits, function(key, value) {
                $('g[data-type="room"]').map(function() {
                    if (value.length == 4) {
                        var num = value.substr(2, 4).replace(/^0+/, '');
                    } else {
                        var num = value.substr(1, 3).replace(/^0+/, '');
                    }
                    if ($(this).attr('data-unit') == num) {
                        $(this).attr('class', 'available');
                    }
                });
                $('g[data-type="space"]').map(function() {
                    if ($(this).text().replace(/\s+/g, '') == '#' + value) {
                        $(this).attr('class', 'available');
                    }
                })
            });
        }
    }

    function getRandomInt(min, max) {
        return Math.floor(Math.random() * (max - min + 1)) + min;
    }
}

AppBuildingFloorplan.prototype.reset = function() {
    this.positions = [];
    this.targets = [];
    this.currentFloorplan = null;
    this.currentSvgParams = {};
    this.currentFloorplanName = null;
    this.floorplanBelow = null;
    this.lastCamera = new THREE.Vector3();
    this.lastTarget = new THREE.Vector3();
    this.list = [];
}

AppBuildingFloorplan.prototype.goToFloor = function(direction) {
    console.log("Called this");
    if (this.busy) return;
    this.busy = true;
    if (typeof AppSearch !== 'undefined') {
        AppSearch.randomUnitFilter();
    }
    MFS.manager.SetState(7);
    this.change(direction);
}

AppBuildingFloorplan.prototype.change = function(direction) {
    // 1. hide current floorplan
    // 2. fade in/out floors towards target floor
    // 3. show (animate in) next floorplan
    var floorName = getFloorInDirection(this.currentFloorplanName, direction);

    if (floorName === null) {
        console.warn('change floor not found', direction, this.currentFloorplanName);
        this.busy = false;
        MFS.manager.SetState(3);
        return;
    }

    if (typeof AppSecondaryInfo !== 'undefined') AppSecondaryInfo.changeCurrentFloor(floorName);
    var zoom = this.needZoom(floorName);
    var distance = zoom ? new THREE.Vector3(0, 170, 0) : AppCameraConfig.floorplan.distance;
    var scope = this;
    var floorData = MFS.building.floor.boundingBoxes[floorName];
    var currentFloorCenter = new THREE.Vector3();
    currentFloorCenter.copy(floorData.center);
    //var currentFloorCameraPosition = new THREE.Vector3().copy(currentFloorCenter).add(distance);
    var topFloorCenterPosition = new THREE.Vector3().copy(MFS.building.floor.boundingBoxes[this.config.topFloor].center);
    var topDownPosition = new THREE.Vector3().copy(topFloorCenterPosition).add(distance);

    this.sMovedPos = { x: 0, y: 0 };
    this.sPos = { x: 0, y: 0 };
    this.sSize = { x: 0, y: 0 };
    this.scale = 1;

    MFS.building.tooltips.hide();
    MFS.building.floorplan.tooltip.hide();

    var newPosition = new THREE.Vector3(0, topDownPosition.y, 25);
    var newPosition2 = new THREE.Vector3(0, 0, 25);
    this.targets[1] = newPosition2;
    this.positions[1] = newPosition;

    var floorData = MFS.building.floor.boundingBoxes[floorName];

    var floorCenterPosition = new THREE.Vector3();
    floorCenterPosition.copy(floorData.center);
    var floorplanTopDownPosition = new THREE.Vector3().copy(floorCenterPosition).add(distance);
    newPosition = new THREE.Vector3(0, floorplanTopDownPosition.y, 25);
    this.targets[2] = newPosition2;
    this.positions[2] = newPosition;

    // hide old floorplan
    var oldSvgContainer = this.currentSvgContainer;
    var newFloorplanBelow = MFS.building.floor.getMeshOfFloorBelow(floorName);
    // prep new svg floorplan
    this.getSvgAndCreateItsContainer(floorName, 'floorplan');
    // oldSvgContainer
    this.currentFloorplanName = floorName;
    this.floorplanBelow = newFloorplanBelow;
    var floor3dAnimationSpeed = 300;
    var totalTimeForAnimations = 1200;
    if (!AppBuildingConfig.animatedSvgChange) {
        floor3dAnimationSpeed = 100; // make it fast
        totalTimeForAnimations = 300; // with a bit of bonus
    }
    if (direction > 0) { // up
        // current floor -> opacity 1
        MFS.building.floor.animate(this.currentFloorplanName, 1, floor3dAnimationSpeed * 2);
    } else {
        // current floor -> opacity 0
        MFS.building.floor.animate(this.currentFloorplanName, 0, floor3dAnimationSpeed * 2);
    }
    if (AppBuildingConfig.animatedSvgChange) {
        scope.animateSvgDisappear(oldSvgContainer, direction, 300);
    }

    // duration in this function should be half the speed of .anim_up_fade in floorplan.css
    AppCameraAnimation.animate(MFS.camera, this.positions[2], this.targets[2], { duration: floor3dAnimationSpeed }, function() {
        var fadeOutNames = [];
        var floorsList = MFS.building.floor.floorsInOrder;
        var len = floorsList.length;
        for (var i = 0; i < len; i++) {
            fadeOutNames.push(floorsList[i]);
            if (floorName === floorsList[i]) break;
        }
        MFS.building.floor.fadeOut(fadeOutNames);

        var fadeInNames = [];
        var floorsList = MFS.building.floor.floorsInOrder;
        var len = floorsList.length;
        for (var i = len; i > 0; i--) {
            fadeInNames.push(floorsList[i]);
            if (floorName === floorsList[i]) break;
        }

        MFS.building.floor.fadeIn(fadeInNames);

        MFS.controls.target.copy(scope.targets[2]);

        var sSize = getObjectOnScreenSize(scope.floorplanBelow, MFS.camera, MFS.renderer);
        if (floorName == "Floor_2") sSize = sSize.multiplyScalar(1.7);
        else sSize = sSize.multiplyScalar(1.5);

        scope.sSize = sSize;
        scope.originalSize = sSize;
        console.log(scope.sSize);

        const sPos = {
            x: MFS.renderer.domElement.clientWidth / 2,
            y: MFS.renderer.domElement.clientHeight / 2
        }
        scope.sPos = sPos;
        scope.originalPos = sPos;

        scope.updateFloorplanHolder(sSize, sPos);
        if (AppBuildingConfig.animatedSvgChange) {
            scope.animateSvgAppearing(scope.currentSvgContainer, direction);
        } else {
            scope.changeSvgsWithoutAnimation(oldSvgContainer, scope.currentSvgContainer);
        }

        MFS.building.floor.dimFloor(scope.floorplanBelow);
        setTimeout(function() {
            scope.busy = false;
        }, totalTimeForAnimations); // wait for all the animations to complete
    });

    function getFloorInDirection(currentFloorplanName, direction) {
        console.log(currentFloorplanName, direction);
        if (currentFloorplanName == "Floor_1" && direction < 0) {
            console.warn("No floor below this");
            return null;
        }
        var key = null;
        var len = MFS.building.floor.floorsInOrder.length;
        for (var i = 0; i < len; i++) {
            if (MFS.building.floor.floorsInOrder[i] == currentFloorplanName) {
                key = i;
                break;
            }
        }
        if (key === null) {
            console.warn('FAILED getFloorInDirection on', currentFloorplanName, direction, MFS.building.floor.floorsInOrder);
            return null;
        }
        var nextKey = null;
        if (direction > 0) { // up
            nextKey = key - 1; // higher floors at the start
            if (!MFS.building.floor.floorsInOrder.hasOwnProperty(nextKey)) nextKey = null;
        } else {
            nextKey = key + 1; // lower floors at athe end of array
            if (!MFS.building.floor.floorsInOrder.hasOwnProperty(nextKey)) nextKey = null;
        }
        if (nextKey !== null) {
            return MFS.building.floor.floorsInOrder[nextKey];
        }
        return null;
    }
}

AppBuildingFloorplan.prototype.getSvgAndCreateItsContainer = function(floorName, containerClass, callback) {
    var div = $('<div/>').attr('class', containerClass);
    this.currentSvgContainer = div;
    this.svgHolder.prepend(div);
    this.getSvg(floorName, div, callback);
}

AppBuildingFloorplan.prototype.prepare = function(floorName) {

    if (!AppBuildingConfig.floorplansEnabled) return;
    var scope = this;
    this.reset(); // must be called above  getSvgAndCreateItsContainer
    this.getSvgAndCreateItsContainer(floorName, 'floorplan');
    // hide building tooltip
    MFS.building.tooltips.hide();
    MFS.building.floorplan.tooltip.hide();

    this.currentFloorplanName = floorName;
    this.currentFloorplan = MFS.building.object.getObjectByName(floorName);
    this.floorplanBelow = MFS.building.floor.getMeshOfFloorBelow(floorName);

    var floorData = MFS.building.floor.boundingBoxes[floorName];

    var floorCenterPosition = new THREE.Vector3();
    floorCenterPosition.copy(floorData.center);
    // config.topFloor - is the name of top floor. we could take center of whole building, but then floorplan wont be centered
    var topFloorCenterPosition = new THREE.Vector3().copy(MFS.building.floor.boundingBoxes[this.config.topFloor].center);

    // building top + some y
    var zoom = this.needZoom(floorName);
    // ! Why 70?
    //Place camera at fixed location in x and z - the y will depend on the floor
    var distance = zoom ? new THREE.Vector3(0, 170, 0) : AppCameraConfig.floorplan.distance;
    var topDownPosition = new THREE.Vector3().copy(topFloorCenterPosition).add(distance);
    var newPosition = new THREE.Vector3(0, topDownPosition.y, 25);
    var newPosition2 = new THREE.Vector3(0, 0, 25);
    this.targets.push(newPosition2);
    this.positions.push(newPosition);

    this.sMovedPos = { x: 0, y: 0 };
    this.sPos = { x: 0, y: 0 };
    this.sSize = { x: 0, y: 0 };
    this.scale = 1;

    // floor plan
    var floorplanTopDownPosition = new THREE.Vector3().copy(floorCenterPosition).add(distance);
    newPosition = new THREE.Vector3(0, floorplanTopDownPosition.y, 25);

    this.targets.push(newPosition2);
    this.positions.push(newPosition);
    var fadeOutNames = [];
    var floorsList = MFS.building.floor.floorsInOrder;
    var len = floorsList.length;
    for (var i = 0; i < len; i++) {
        fadeOutNames.push(floorsList[i]);
        if (floorName === floorsList[i]) break;
    }
    var clippingCallback = function() {};
    if (AppBuildingConfig.clippingInsideEnabled) {
        clippingCallback = function() {
            //MFS.building.floor.clipAt(floorName);
        }
    }
    this.show(fadeOutNames, clippingCallback, function() {

        var sSize = getObjectOnScreenSize(scope.floorplanBelow, MFS.camera, MFS.renderer);
        if (floorName == "Floor_2") sSize = sSize.multiplyScalar(1.7);
        else sSize = sSize.multiplyScalar(1.5);

        scope.sSize = sSize;
        scope.originalSize = sSize;
        console.log(scope.sSize);

        sPos = {
            x: MFS.renderer.domElement.clientWidth / 2,
            y: MFS.renderer.domElement.clientHeight / 2
        }
        scope.sPos = sPos;
        scope.originalPos = sPos;

        scope.placeFloorplan(sSize, sPos, scope.currentSvgContainer);

        if (typeof AppSecondaryInfo !== 'undefined') {
            AppSecondaryInfo.changeCurrentFloor(floorName);
            var info = AppSecondaryInfo.getInfoForFloor(floorName);
            AppSecondaryInfo.show({ name: floorName, info: info });
        }
    });
}

AppBuildingFloorplan.prototype.needZoom = function(floorName) {
    var zoom = false;
    ZOOMENABLEDFLOORS.forEach(function(element) {
        if (element === floorName) {
            zoom = true;
        }
    });
    return zoom;
}

AppBuildingFloorplan.prototype.checkStatus = function() {
    if (AppBuildingConfig.floorplansEnabled && this.visible) {
        this.hide();
    }
}

AppBuildingFloorplan.prototype.show = function(fadeOuts, clippingCallback, floorPlanCallback) {

    if (this.visible) {
        return;
    }
    if (AppCameraAnimation.busy) {
        return;
    }
    this.visible = true;
    var scope = this;
    AppCameraAnimation.busy = true;
    MFS.building.view = AppBuildingConfig.views.topdown;
    if (!isMobile) MFS.building.tooltips.update(); // hide tooltips in topdown view mode
    this.lastCamera.copy(MFS.camera.position);
    this.lastTarget.copy(MFS.controls.target);
    this.list = fadeOuts;
    var options = {
        duration: 1000,
    }
    var options2 = {
        duration: 500,
    }
    MFS.controls.enabled = false;
    var positions = this.positions;
    var targets = this.targets;

    this.sMovedPos = { x: 0, y: 0 };
    this.sPos = { x: 0, y: 0 };
    this.sSize = { x: 0, y: 0 };
    this.scale = 1;

    // ! When Click Floor
    AppCameraAnimation.animate(MFS.camera, positions[0], targets[0], options, function() {
        MFS.controls.target.copy(targets[0]);
        MFS.building.floor.fadeOut(fadeOuts);
        // remove highlighted floor color, call highligh update function on fake x,y mouse coordinates
        MFS.highlight.forceClear();
        if (clippingCallback) clippingCallback();
        AppCameraAnimation.animate(MFS.camera, positions[1], targets[1], options2, function() {
            AppCameraAnimation.busy = false;
            // scope.unlockControls();
            MFS.controls.topDownViewLock();
            MFS.controls.target.copy(targets[1]);
            if (floorPlanCallback) floorPlanCallback();
        });
    })
}

AppBuildingFloorplan.prototype.hide = function() {
    if (!this.visible) {
        console.warn('skip HIDE, floorplan not visible', this.visible);
        return;
    }
    if (typeof AppSearch !== 'undefined') AppSearch.showAllUnits();
    if (typeof AppSecondaryInfo !== 'undefined') {
        AppSecondaryInfo.hide();
    } else {
        console.warn('AppSecondaryInfo', typeof AppSecondaryInfo);
    }
    // hide tooltip (in case it bugs out)
    MFS.building.floorplan.tooltip.hide();
    var scope = this;
    var options = {
        duration: 500, // up
    }
    var options2 = {
        duration: 1000, // back
    }
    var list = this.list;
    var positions = [];
    positions.push(this.positions[0]);
    positions.push(this.lastCamera);
    var targets = [];
    targets.push(this.targets[0]);
    targets.push(this.lastTarget);
    this.debug({ x: 0, y: 0, }, { x: -999, y: -999 });
    this.hideSvg(true); // hide svg
    AppCameraAnimation.animate(MFS.camera, positions[0], targets[0], options, function() {
        MFS.controls.target.copy(targets[0]);
        // show things again
        MFS.building.floor.fadeIn(MFS.building.floor.floorsInOrder); //
        // cancel dim on recent floor
        MFS.building.floor.cancelFloorDim(scope.floorplanBelow, function() {
            MFS.building.floor.cancelDimOnFloors();
        });
        // but disable clipping after 2nd animation, because it does not have animation and just blinks as a white bg
        AppCameraAnimation.animate(MFS.camera, positions[1], targets[1], options2, function() {
            MFS.building.floor.disableClipping();
            // scope.lockControls();
            MFS.controls.lockControls();
            MFS.controls.target.copy(targets[1]);
            AppCameraAnimation.busy = false;
            scope.visible = false;
            MFS.controls.enabled = true;
        });
    })
}
AppBuildingFloorplan.prototype.hideSvg = function(removeSvgFloorplan) {
    var removeSvgFloorplan;
    if (typeof removeSvgFloorplan === 'undefined') {
        removeSvgFloorplan = false;
    }
    var scope = this;

    this.updateFloorplanHolder({
        x: -999,
        y: -999,
    }, {
        // size
        x: 0,
        y: 0,
    });
    if (removeSvgFloorplan) {
        $('#floorplan .floorplan').remove();
    }
    // });
}
AppBuildingFloorplan.prototype.updateFloorplanHolder = function(sSize, sPos) {
        // TODO - check svg offsets and use them (linkphx floorplan SVGS have margins top/bottom)
        var offsetTop = 0;
        var offsetBottom = 0;

        var width = sSize.x;
        var height = sSize.y;
        var left = sPos.x - (sSize.x / 2);
        var top = sPos.y - (sSize.y / 2);

        // container inside, should have negative margins to center svg properly
        this.svgHolder.find('.floorplan').css({
            width: width + 'px',
            height: height + 'px',
            left: left + 'px',
            top: top + 'px',
            display: "flex"
        });
    }
    /**
     *
     * @param sSize - screen size (object conversion from 3d to 2d screen position)
     * @param sPos - screen position (x - left, y - top)
     */
AppBuildingFloorplan.prototype.placeFloorplan = function(sSize, sPos, $element) {
    this.visible = true;
    this.updateFloorplanHolder(sSize, sPos);
    this.animateFloorPlanOpacity($element, 0, 1);

    if (!MFS.building.floorplan.tooltip.ready) {
        MFS.building.floorplan.tooltip.bindEvents($element, scope.currentFloorplanName);
    }
    this.bindMouseClick();
}

AppBuildingFloorplan.prototype.bindMouseClick = function() {
    this.currentSvgContainer.on('click', function(e) {
        if (e.target.nodeName == "svg") MFS.events.manualFloorplanHide();
    });

    this.currentSvgContainer.on('tourhstart', function(e) {
        if (e.target.nodeName == "svg") MFS.events.manualFloorplanHide();
    });
}

AppBuildingFloorplan.prototype.changeSvgsWithoutAnimation = function($oldSvg, $newSvg) {
    $oldSvg.removeClass('done');
    $newSvg.addClass('done');
    setTimeout(function() {
        $oldSvg.remove();
    }, 300);
}
AppBuildingFloorplan.prototype.animateSvgDisappear = function($elem, direction, delay, callback) {
    var className = direction > 0 ? 'anim_down_fade' : 'anim_up_fade';
    delay = parseInt(delay) || 0;
    setTimeout(function() {
        $elem.addClass(className);
        setTimeout(function() {
            $elem.remove();
        }, 1000)
    }, delay);
}
AppBuildingFloorplan.prototype.animateFloorUpAndFade = function($elem, delay, callback) {
    delay = parseInt(delay) || 0;
    setTimeout(function() {
        $elem.addClass('anim_up_fade');
        setTimeout(function() {
            $elem.remove();
        }, 1000)
    }, delay);
}
AppBuildingFloorplan.prototype.animateSvgAppearing = function($elem, direction, delay, callback) {
    var className = direction > 0 ? 'anim_appear_top' : 'anim_appear_bottom';
    setTimeout(function() {
        $elem.addClass(className);
        setTimeout(function() {
            $elem.removeClass(className).addClass('done');
        }, 900);
    }, 0);
}
AppBuildingFloorplan.prototype.animateFloorPlanOpacity = function($elem, from, to, options, callback) {
    options = options || {};
    var duration = options.duration || 700;
    var anim = null;
    var currentOpacity = from;
    var inc = (to - from) / duration * 100;
    $elem.css('opacity', from);
    animateOpacity();

    function animateOpacity() {
        anim = requestAnimationFrame(animateOpacity);
        if (currentOpacity >= to) {
            cancelAnimationFrame(anim);
            currentOpacity = to;
            if (callback) callback();
        } else {
            currentOpacity += inc;
        }
        $elem.css('opacity', currentOpacity);
    }
}
AppBuildingFloorplan.prototype.debug = function(sSize, sPos) {
    $('#debugBox').css({
        width: sSize.x + 'px',
        height: sSize.y + 'px',
        left: sPos.x - (sSize.x / 2) + 'px',
        top: sPos.y - (sSize.y / 2) + 'px',
    });
    $('#debugDot').css({
        left: sPos.x + 'px',
        top: sPos.y + 'px',
    });
}
AppBuildingFloorplan.prototype.dummy = function() {}

AppBuildingFloorplan.prototype.moveSVG = function(distanceX, distanceY, origX, origY) {
    if (!this.sMovedPos) this.sMovedPos = { x: 0, y: 0 };
    sPos = { x: 0, y: 0 };

    var origDistanceX = this.sPos.x - origX;
    var origDistanceY = this.sPos.y - origY;

    var realDistanceX = distanceX - origX;
    var realDistanceY = distanceY - origY;

    this.sMovedPos.x += 20 * (distanceX / screen.width);
    this.sMovedPos.y += 20 * (distanceY / screen.height);

    //sPos.x = this.sPos.x + this.sMovedPos.x;
    //sPos.y = this.sPos.y + this.sMovedPos.y;

    sPos.x = this.sPos.x + realDistanceX;
    sPos.y = this.sPos.y + realDistanceY;


    //sPos.x = distanceX;
    //sPos.y = distanceY;


    if (sPos.x > screen.width) sPos.x = screen.width;
    if (sPos.x < 0) sPos.x = 0;
    if (sPos.y > screen.height) sPos.y = screen.height;
    if (sPos.y < 0) sPos.y = 0;

    //if(Math.sqrt(Math.pow((this.sPos.x - this.originalPos.x), 2) + Math.pow((this.sPos.y - this.originalPos.y), 2)) < 20) this.sPos = this.originalPos;
    //if (this.scale < 1) this.scale = 1;

    var sSize = { x: 1, y: 1 };
    sSize.x = this.sSize.x * this.scale;
    sSize.y = this.sSize.y * this.scale;


    if (sSize.y < this.originalSize.y * 2) {
        sPos = { x: this.sPos.x, y: this.sPos.y };
    }

    this.updateFloorplanHolder(sSize, sPos);
}

AppBuildingFloorplan.prototype.resizeSVG = function(scale) {
    if (!scale) return;

    this.scale = scale;
    //if (this.scale < 1) this.scale = 1;
    //if (this.scale > 3) this.scale = 3.2;

    var sSize = { x: 1, y: 1 };
    sSize.x = this.sSize.x * this.scale;
    sSize.y = this.sSize.y * this.scale;

    // if (sSize.x < this.originalSize.x || sSize.y < this.originalSize.y) {
    //     sSize.x = this.originalSize.x;
    //     sSize.y = this.originalSize.y;
    // }

    this.updateFloorplanHolder(sSize, this.sPos);
}

AppBuildingFloorplan.prototype.saveSize = function() {

    var sSize = { x: 1, y: 1 };
    sSize.x = this.sSize.x * this.scale;
    sSize.y = this.sSize.y * this.scale;

    this.sSize = sSize;

    // if (this.sSize.x < this.originalSize.x || this.sSize.y < this.originalSize.y) {
    //     this.sSize.x = this.originalSize.x;
    //     this.sSize.y = this.originalSize.y;
    // }
};var AppBuildingFloorplanTooltip = function(params) {
    console.log(params);
    params = params || {};
    // this.svgContainerWrapper = params.svgContainerWrapper || $('#floorplan'); // NOT USED?
    this.type = params.type || ''; // changes css styling by adding class
    this.tooltipContainer = params.container || $('#floorplanTooltip'); // jquery element
    this.tooltipWrapper = this.tooltipContainer.find('#tooltipWrapper');
    this.img = this.tooltipContainer.find('#roomPreviewImage');
    this.unit = this.tooltipContainer.find('#roomNumber');
    this.info = this.tooltipContainer.find('#roomInfo');
    this.price = this.tooltipContainer.find('#roomPrice');
    this.common = this.tooltipContainer.find('#commonInfo');
    this.plan = this.tooltipContainer.find('#roomPlanInfo');
    this.tooltipContainer.addClass(this.type);
    this.visible = false;
    this.mouse = {
        x: 0,
        y: 0,
    }
    this.left = 0;
    this.top = 0;
    this.width = 0;
    this.height = 0;
    this.commons = COMMONROOMS;
    this.ready = false;

    this.startx = undefined;
    this.starty = undefined;
    this.endx = undefined;
    this.endy = undefined;

    // this.bindEvents(); // binds events when floor svg is loaded
}
AppBuildingFloorplanTooltip.prototype.randomInfo = function(room) {
        // var rand1 = Math.random();
        // var rand2 = Math.random();
        // var bed = Math.random();
        // var bath = Math.random();
        // var sqft = Math.random();
    
    return room.bedroom + " Bed / " + room.bathroom + " Bath / " + room.sqft + " sq.ft."
}
AppBuildingFloorplanTooltip.prototype.randomPrice = function(room) {
    var price = room ? room.rent : 22;
    return "$" + numberFormat(price);
}

function numberFormat(nStr) {
    nStr += '';
    x = nStr.split('.');
    x1 = x[0];
    x2 = x.length > 1 ? '.' + x[1] : '';
    var rgx = /(\d+)(\d{3})/;
    while (rgx.test(x1)) {
        x1 = x1.replace(rgx, '$1' + ',' + '$2') + '.00';
    }
    return x1;
}
AppBuildingFloorplanTooltip.prototype.fullUnitNumber = function(room) {
    // var floor = parseInt(MFS.building.floor.fullFloorName(MFS.building.floorplan.currentFloorplanName));
    var floor = getFloorNumberByName(MFS.building.floorplan.currentFloorplanName, FLOORNAMES);
    return floor + '' + doubleDigit(room);

    function doubleDigit(room) {
        if (String(room).length === 1) {
            return "0" + room;
        }
        return room;
    }
}
AppBuildingFloorplanTooltip.prototype.bindEvents = function($element, floorName) {
        this.ready = true;
        var scope = this;
        if ($element.find('svg').length == 0) {
            var $svg = MFS.building.floorplan.currentSvgContainer;
        } else {
            var $svg = $element.find('svg');
        }
        
        if($svg)
        {
            //$element.on('mousemove', function(event) {
            $svg.find('g.available[data-type="room"], g.available[data-type="space"]').on('mouseleave', function(event) {
                if (event.target.classList.contains('cls-6') || checkActiveRoom(event.target.innerHTML) || $svg.find('g.available[data-type="room"], g.available[data-type="space"]')) {
                    $('#floorplanTooltip').removeClass('visible');
                }
            });
            $svg.find('g.available[data-type="room"], g.available[data-type="space"]').on('mousemove', function(event) {
    
                if (event.target.classList.contains('cls-6') || checkActiveRoom(event.target.innerHTML) || $svg.find('g.available[data-type="room"], g.available[data-type="space"]')) {
                    
                    var $self = $(this);
                    var data = {};
                    var type = $self.attr('data-type');
    
                    if (type == 'room') {
                        var unit = $self.attr('data-unit');
                        var record = rs[scope.fullUnitNumber(unit).replace('#', '')];
                        data.unit = scope.fullUnitNumber(unit);
                    }
                    else if (type == 'space') {
                        var unit = $self.text().replace(/\s+/g, '');
                        var record = rs[unit.replace('#', '')];
                        data.unit = unit;
                    }
                    
                    if (record != 'undefined' && record != undefined){
                        data.plan = record.floorplanName;
                        data.price = scope.randomPrice(record);
                        data.info = scope.randomInfo(record);
                        
                        if (record.furl != null && record.furl != '') {
                            data.img = Main_Host_Url + '/upload/OneCamelbackPlans/thumb_' + record.furl.toLowerCase();
                        }
                        else {
                            data.img = Main_Host_Url + '/upload/OneCamelbackPlans/medium_default.png';
                        }
                        //data.plan = record.floorplanName + '(' + record.floorplanCode + ')';
                        
                        scope.changePosition(event);
                        scope.show(data);
                    }
    
                    // data.unit = ROOMINFO[0].number; D
                    
                    // data.price = ROOMINFO[0].price; D
                    // data.info = ROOMINFO[0].info; D
                    // data.img = ROOMINFO[0].previewImage; D
                    // data.unit = ROOMINFO[0].unit;
                    // data.plan = ROOMINFO[0].planInfo; D
                    // data.type = ROOMINFO[0].type;
                    // data.common = ROOMINFO[0].common;
                    // scope.changePosition(event);
                    // scope.show(data);
    
                } else {
                    scope.hide();
                }
            }).on('mousemove', function (event) {
                if (scope.visible) {
                    scope.changePosition(event);
                }
            }).on('click', function () {
                showRoomInfoModal($(this).data('id'));
            }).on('touchstart', function () {
                var $self = $(this);
                var unit = $(this).text().replace('#', '').replace(/\s+/g, '');
                showRoomInfoModal(unit);
            });
    
            $svg.find('g.available[data-type="room"], g.available[data-type="space"]').on('touchstart', function(event) {
                scope.startx = event.originalEvent.touches[0].clientX;
                scope.starty = event.originalEvent.touches[0].clientY;
    
                scope.multiTouch = false;
                if (event.touches.length > 1) {
                    scope.touch1Start = { x: event.originalEvent.touches[0].clientX, y: event.originalEvent.touches[0].clientY };
                    scope.touch2Start = { x: event.originalEvent.touches[1].clientX, y: event.originalEvent.touches[1].clientY };
                    scope.multiTouch = true;
                    MFS.building.floorplan.saveSize();
                }
    
                scope.state = "TouchStarted";
    
    
                if (event.target.classList.contains('cls-6') || checkActiveRoom(event.target.innerHTML) || $svg.find('g.available[data-type="room"], g.available[data-type="space"]')) {
                    var $self = $(this);
                    var data = {};
                    // var unit = $self.attr('data-unit');
                    // var record = rs[scope.fullUnitNumber(unit).replace('#', '')];
                    // data.unit = ROOMINFO[0].number;
    
                    // data.price = ROOMINFO[0].price;
                    // data.info = ROOMINFO[0].info;
                    // data.img = ROOMINFO[0].previewImage;
                    // data.unit = ROOMINFO[0].unit;
                    // data.plan = ROOMINFO[0].planInfo;
                    // data.type = ROOMINFO[0].type;
                    // data.common = ROOMINFO[0].common;
                    // scope.changePosition(event);
                    // scope.show(data);
    
                    var type = $self.attr('data-type');
    
                    if (type == 'room') {
                        var unit = $self.attr('data-unit');
                        var record = rs[scope.fullUnitNumber(unit).replace('#', '')];
                        data.unit = scope.fullUnitNumber(unit);
                    }
                    else if (type == 'space') {
                        var unit = $self.text().replace(/\s+/g, '');
                        var record = rs[unit.replace('#', '')];
                        data.unit = unit;
                    }
                    
                    if (record != 'undefined' && record != undefined){
                        data.price = scope.randomPrice(record);
                        data.plan = record.floorplanName;
                        if (record.furl != null && record.furl != '') {
                            data.img = Main_Host_Url + '/upload/OneCamelbackPlans/thumb_' + record.furl.toLowerCase();
                        }
                        else {
                            data.img = Main_Host_Url + '/upload/OneCamelbackPlans/medium_default.png';
                        }
                        //data.plan = record.floorplanName + '(' + record.floorplanCode + ')';
                        data.type = type;
                        data.info = scope.randomInfo(record);
                        data.unitId = record.unitId;
                        data.availableOn = record.availableOn;
                        scope.changePosition(event);
                        scope.show(data);
                    }
    
                } else {
                    scope.hide();
                }
            }).on('mousemove', function (event) {
                if (scope.visible) {
                    scope.changePosition(event);
                }
            }).on('click', function () {
                showRoomInfoModal($(this).data('id'));
            }).on('touchstart', function () {
                var $self = $(this);
                var unit = $(this).text().replace('#', '').replace(/\s+/g, '');
                showRoomInfoModal(unit);
            });
    
            $svg.find('g.available[data-type="room"], g.available[data-type="space"]').on('touchmove', function(event) {
    
                if (scope.multiTouch == true) {
                    scope.touch1End = { x: event.originalEvent.touches[0].clientX, y: event.originalEvent.touches[0].clientY };
                    scope.touch2End = { x: event.originalEvent.touches[1].clientX, y: event.originalEvent.touches[1].clientY };
    
                    scope.originalDistance = Math.sqrt(Math.pow((scope.touch1Start.x - scope.touch2Start.x), 2) + Math.pow((scope.touch1Start.y - scope.touch2Start.y), 2));
                    scope.currentDistance = Math.sqrt(Math.pow((scope.touch1End.x - scope.touch2End.x), 2) + Math.pow((scope.touch1End.y - scope.touch2End.y), 2));
                    MFS.building.floorplan.resizeSVG(Math.abs((scope.originalDistance + (scope.currentDistance - scope.originalDistance)) / scope.originalDistance));
                } else {
                    scope.endx = event.originalEvent.touches[0].clientX;
                    scope.endy = event.originalEvent.touches[0].clientY;
                    //MFS.building.floorplan.moveSVG(Math.pow((scope.endx - scope.startx), 2),  Math.pow((scope.endy - scope.starty), 2));
                    //MFS.building.floorplan.moveSVG((scope.endx - scope.startx), (scope.endy - scope.starty));
                    MFS.building.floorplan.moveSVG(scope.endx, scope.endy, scope.startx, scope.starty);
    
                }
            });
    
            $svg.find('g.available[data-type="room"], g.available[data-type="space"]').on('touchend', function(event) {
                scope.state = "TouchEnded";
            });
    
            /*if($svg) {
                // available rooms tooltip
                $svg.find('g.available[data-type="room"], g.available[data-type="space"]')
                    .off() // unbind old events
                    .on('mouseenter', function (event) {
                        var $self = $(this);
                        var type = $self.attr('data-type');
                        var data = {};
                        if (type == 'room') {
                            var unit = $self.attr('data-unit');
                            var record = rs[scope.fullUnitNumber(unit).replace('#', '')];
                            data.unit = scope.fullUnitNumber(unit);
                        }
                        else if (type == 'space') {
                            var unit = $self.text().replace(/\s+/g, '');
                            var record = rs[unit.replace('#', '')];
                            data.unit = unit;
                        }
                        if (record != 'undefined' && record != undefined){
                            data.price = scope.randomPrice(record);
                            data.info = scope.randomInfo(record);
                            if (record.furl != null && record.furl != '') {
                                data.img = Main_Host_Url + '/upload/OneCamelbackPlans/thumb_' + record.furl;
                            }
                            else {
                                data.img = Main_Host_Url + '/upload/OneCamelbackPlans/medium_default.png';
                            }
                            //data.plan = record.floorplanName + '(' + record.floorplanCode + ')';
                            data.plan = record.floorplanName;
                            scope.changePosition(event);
                            scope.show(data);
                        }
                    }).on('mouseleave', function () {
                    scope.hide();
                }).on('mousemove', function (event) {
                    if (scope.visible) {
                        scope.changePosition(event);
                    }
                }).on('click', function () {
                    showRoomInfoModal($(this).data('id'));
                }).on('touchstart', function () {
                    var $self = $(this);
                    var unit = $(this).text().replace('#', '').replace(/\s+/g, '');
                    showRoomInfoModal(unit);
                });
                // common areas tooltip
                var keys = Object.keys(this.commons);
                $element.find(keys.map(function (key, i) {
                  var str = 'svg g[data-type="' + key + '"]';
                  if (i !== keys.length - 1) {
                    str += ',';
                  }
                  return str;
                }).join(' '))
                    .on('mouseenter', function (event) {
                        var $self = $(this);
                        var type = $self.attr('data-type');
                        var data = {};
                        data.type = 'common';
                        data.common = scope.commons[type];
                        scope.changePosition(event);
                        scope.show(data);
                    }).on('mouseleave', function () {
                    scope.hide();
                }).on('mousemove', function (event) {
                    if (scope.visible) {
                        scope.changePosition(event);
                    }
                });
                this.tooltipWrapper.on('mouseover', function (event) {
                    scope.hide();
                });
            }*/
        }
        // on mouse movement, update tooltip positions
    }
AppBuildingFloorplanTooltip.prototype.changePosition = function(event) {
    this.mouse.x = parseInt(event.clientX) || parseInt(event.layerX);
    this.mouse.y = parseInt(event.clientY) || parseInt(event.layerY);
    this.update();
}
AppBuildingFloorplanTooltip.prototype.show = function(data) {
    data = data || {};
console.log('this');
console.log(this);  
    if(data.img) this.img.attr('src',data.img);
    if(data.unit) this.unit.html(data.unit);
    if(data.plan) this.plan.html(data.plan);
    if(data.price) this.price.html(data.price);
    if(data.info) this.info.html(data.info);
    if (data.type) {
        this.tooltipContainer.removeClass().addClass(data.type);
        this.type = data.type;
    } else {
        this.type = '';
        this.tooltipContainer.removeClass("common");
    }
    if (data.common) {
        this.common.html(data.common);
    }
    this.visible = true;
    this.tooltipContainer.addClass('visible');

    // this.tooltipContainer.addClass('visible');
    // this.width = this.tooltipWrapper.width();
    // this.height = this.tooltipWrapper.height();
    this.width = this.tooltipWrapper.outerWidth();
    this.height = this.tooltipWrapper.outerHeight();
    // this.height = this.tooltipWrapper[0].offsetHeight;
    this.update();
    
    if(data.unit) jQuery('#mbl-unit').val(data.unit);
    if(data.unitId) jQuery('#mbl-unitId').val(data.unitId);
    if(data.availableOn) jQuery('#mbl-move-date').val(data.availableOn);
}
AppBuildingFloorplanTooltip.prototype.hide = function() {
    this.visible = false;
    this.tooltipContainer.removeClass('visible');
    // make sure its out of the way
    this.mouse.x = -999;
    this.mouse.y = -999;
    this.update();
    this.tooltipContainer.css({
        left: -1000 + 'px',
        top: -1111 + 'px',
        height: -10000 + 'px',
    });
}
AppBuildingFloorplanTooltip.prototype.update = function() {
    var offset = 25;
    var height;
    this.left = this.mouse.x + offset;
    this.top = this.mouse.y - parseInt(this.height) / 2;
    var horizontal = this.left + this.width;
    if (horizontal > window.innerWidth) {
        this.left -= (this.width + (offset * 2) + 10);
        if (this.type != '' && !this.tooltipContainer.hasClass('reverse')) {
            this.tooltipContainer.addClass('reverse');
        }
    } else if (this.type != 'n' && this.tooltipContainer.hasClass('reverse')) {
        this.tooltipContainer.removeClass('reverse');
    }
    var vertical = this.top + this.height;
    if (vertical > window.innerHeight) {
        this.top -= parseInt(this.height);
    }
    /*this.tooltipContainer.css({
        left: this.mouse.x,
        top: this.mouse.y,
        height: '50px',
    });*/
    if (isMobile != true) {
        this.tooltipContainer.css({
            left: this.left + 'px',
            top: this.top + 'px',
            height: this.height + 'px',
        });
    } else {
        this.tooltipContainer.css({
            left: this.width / 2 + 'px',
            top: this.height / 2 + 'px',
            height: this.height + 'px',
        });
    }
};var AppFloor = function(name){
    console.log("Starting AppFloor");
    this.name = name;
    this.mesh = undefined;
}

AppFloor.prototype.SetMesh = function(mesh){
    this.mesh = mesh;
}

AppFloor.prototype.GetMesh = function(){
    return this.mesh;
}

AppFloor.prototype.FloorName = function(){
    return this.name;
};var AppFloorManager  = function(){
    console.log("Starting AppFloorManager");

    this.floorDimEnabled = false;
    this.floorsInOrder = FLOORORDER;
    this.clippedObjectName = 'staticGround'; // TODO - missing floor/ground plane to hide building emptyness inside

    this.floorNames = this.InitializeFloors();

    this.floors = [];

    this.boundingBoxes = {};

    this.localClippingEnabled = AppBuildingConfig.clippingInsideEnabled;
    this.localClippingPlane = this.GetLocalClippingPlane();
    this.globalClippingPlane = this.GetGlobalClippingPlane();
}

AppFloorManager.prototype.InitializeFloors = function(){
    scope = this;
    var names = {};
    for(var i=0;i<FLOORNAMES.length;i++){
        names[ FLOORNAMES[i].floor ] = FLOORNAMES[i].name;
        //scope.floors[i] = new AppFloor(FLOORNAMES[i].name);
    }
    return names;
}

AppFloorManager.prototype.GetMeshofFloorBelow = function(){
    var foundCurrent = false;
    var floorBelow = null;
    var iLen = this.floorsInOrder.length;
    for(var i=0; i< iLen; i++){

        if(foundCurrent){
            floorBelow = this.floorsInOrder[i];
            break;
        }

        if(this.floorsInOrder[i] === name){
            foundCurrent= true;
            continue;
        }

    }

    // last floor highlighted
    if(floorBelow === null){
        floorBelow = this.floorsInOrder[iLen-1];
    }

    return MFS.building.object.getObjectByName(floorBelow);
}

AppFloorManager.prototype.DetectFloorPosition = function(){
    var positionalData = {};

    var child, position = new THREE.Vector3();

    // debug stuff - show center of floor
    var material = new THREE.LineBasicMaterial({
        color: 0xff0000
    });
    var lineLength = 50;
    var geometry = new THREE.Geometry();
    geometry.vertices.push(
        new THREE.Vector3( -lineLength, 0, 0 ),
        new THREE.Vector3( 0, 0, 0 ),
        new THREE.Vector3( lineLength, 0, 0 )
    );
    var geometry2 = new THREE.Geometry();
    geometry2.vertices.push(
        new THREE.Vector3( 0, 0, -lineLength/2 ),
        new THREE.Vector3( 0, 0, 0 ),
        new THREE.Vector3( 0, 0, lineLength/2 )
    );
    var horizontalLine = new THREE.Line( geometry, material );
    var verticalLine = new THREE.Line(geometry2, material);
    // debug stuff end

    MFS.building.object.updateMatrixWorld(); // make sure things are updated

    for(var i=0;i<MFS.building.object.children.length;i++){
        child = MFS.building.object.children[i];

        if( child.hasOwnProperty('name') && MFS.building.isBuildingFloor(child.name) ){

            var center = getCenterPoint(child);
            var bbox = new THREE.Box3().setFromObject(child);
            var size = new THREE.Vector3();
            bbox.getSize(size);

            // console.log('--- SIZE?', size);
            // console.log('check floor size', child.name, size);

            positionalData[ child.name ] = {
                center: center,
                size: size,
            }

             //debugCenter(positionalData);

            // temp - add bounding box for each floor
            // var bbox = new THREE.Box3().setFromObject(child);
            // var helper = new THREE.Box3Helper( bbox, Math.random() * 0xffffff );
            // MFS.scene.add( helper );
            // temp end
        }
    }

    this.boundingBoxes = positionalData;

    function getCenterPoint(mesh) {
        var center = new THREE.Vector3();
        var geometry = mesh.geometry;
        geometry.computeBoundingBox();
        geometry.boundingBox.getCenter( center );
        mesh.localToWorld( center );

        return center;
    }

    function debugCenter(position){

        var h = horizontalLine.clone();
        h.position.copy(position);
        MFS.scene.add(h);

        var v = verticalLine.clone();
        v.position.copy(position);
        MFS.scene.add(v);

    }

    function getBbox(mesh){

        var min = new THREE.Vector3().copy(mesh.geometry.boundingBox.min);
        var max = new THREE.Vector3().copy(mesh.geometry.boundingBox.max);

        mesh.localToWorld(min);
        mesh.localToWorld(max);

        return {
            min: min,
            max: max,
        }
    }

    function get2dBoundingBox(mesh){

        var boundingBox2D = computeScreenSpaceBoundingBox(mesh, MFS.camera);

        // Convert normalized screen coordinates [-1, 1] to pixel coordinates:
        var pixelCoordScale = normalizedToPixels(boundingBox2D.getSize(), MFS.container.width, MFS.container.height);
        var pixelCoordCenter = normalizedToPixels(boundingBox2D.getCenter(), MFS.container.width, MFS.container.height);

        return {
            center: pixelCoordCenter,
            scale: pixelCoordScale,
        }

        // overlayBox.scale.set(pixelCoordScale.x, pixelCoordScale.y, 1);
        // overlayBox.position.set(pixelCoordCenter.x, pixelCoordCenter.y, 0)
        // overlayBox.needsUpdate = true;

    }

    function computeScreenSpaceBoundingBox(mesh, camera) {

        var vertices = mesh.geometry.vertices;
        var vertex = new THREE.Vector3();
        var min = new THREE.Vector3(1);
        var max = new THREE.Vector3(-1);

        var min2 = new THREE.Vector3().copy(mesh.geometry.boundingBox.min);
        var max2 = new THREE.Vector3().copy(mesh.geometry.boundingBox.max);

        // console.log('mesh?', mesh.geometry);

        // for (var i = 0; i < vertices.length; i++) {
        //     var vertexWorldCoord = vertex.copy(vertices[i]).applyMatrix4(mesh.matrixWorld);
        //     var vertexScreenSpace = vertexWorldCoord.project(camera);
        //     min.min(vertexScreenSpace);
        //     max.max(vertexScreenSpace);
        // }   

        // return new THREE.Box2(min, max);
        return new THREE.Box2(min2, max2);
    }

    function normalizedToPixels(coord, renderWidthPixels, renderHeightPixels) {
        var halfScreen = new THREE.Vector2(renderWidthPixels/2, renderHeightPixels/2)
        return coord.clone().multiply(halfScreen);
    }
}

AppFloorManager.prototype.GetLocalClippingPlane = function(clipHeight){
    clipHeight = clipHeight || 60;
    return new THREE.Plane( new THREE.Vector3( 0, - 1, 0 ), clipHeight );
}

AppFloorManager.prototype.GetGlobalClippingPlane = function(clipHeight){
    clipHeight = clipHeight || 60;
    return new THREE.Plane( new THREE.Vector3( 0, - 1, 0 ), clipHeight );
}

AppFloorManager.prototype.CreateClippingPlans = function(height){
    height = height || 0;

    height = 50; // from bottom, do I need real height here?

    var clipPlanes = {
        x: new THREE.Plane( new THREE.Vector3( 1, 0, 0 ), height ), //x
        y: new THREE.Plane( new THREE.Vector3( 0, - 1, 0 ), height ), // y
        z: new THREE.Plane( new THREE.Vector3( 0, 0, - 1 ), height ) // z
    }

    // clipping things on y plane (how much to clip vertically on object)
    return clipPlanes.y;
}

AppFloorManager.prototype.DisableClipping = function(){
    MFS.renderer.localClippingEnabled = false;
}

AppFloorManager.prototype.ClipAt = function(floorName){
    if( ! AppBuildingConfig.clippingInsideEnabled) return;

    // var clipValue = this.clippingValues[floorName];
    var clipValue = 0;
    for(var i=0;i<this.clippingValues.length;i++){
        if(this.clippingValues[i].floor === floorName){
            clipValue = this.clippingValues[i].clip;
            break;
        }
    }

    if(clipValue === 0){
        console.warn('NO CLIPPING: Floor not found for clipping', floorName, this.clippingValues);
        return;
    }

    var object = MFS.building.object.getObjectByName(this.clippedObjectName);

    if(object){

        var noClipping = Object.freeze( [] );
        var localClip = this.getLocalClippingPlane(clipValue);

        // object.material.clippingPlanes = [ this.localClippingPlane ]; // if need to use it with gui, reenable this one
        object.material.clippingPlanes = [ localClip ];
        object.material.clipShadows = true; // dont have shadows atm, but leave it in case we do

        // console.log('CLIP', object.material);

        MFS.renderer.localClippingEnabled = this.localClippingEnabled;
        // MFS.renderer.clippingPlanes = [ this.globalClippingPlane ];
        MFS.renderer.clippingPlanes = noClipping;

    }

}

AppFloorManager.prototype.DimFloor = function(floors){
    if( ! this.floorDimEnabled ) return;

    var opacity = 0.3; // from 0 to 1
    var duration = 600;//ms

    //qqli
    object.material.transparent = true;
    new TWEEN.Tween(object.material)
        .to({ opacity : opacity }, duration)
        .start();
}

AppFloorManager.prototype.CancelDimonFloor = function(){
    if( ! this.floorDimEnabled ) return;

    for(var i=0; i< MFS.building.object.children.length; i++){
        if(this.floorNames.hasOwnProperty(MFS.building.object.children[i].name)){

            MFS.building.object.children[i].material.transparent = false;
        }
    }
}

AppFloorManager.prototype.CancelDimFloor = function(floor){
    if( ! this.floorDimEnabled ) return;

    var opacity = 1; // restore back to full opacity, 1
    var duration = 600;//ms

    // qqli
    floor.material.transparent = true;
    new TWEEN.Tween(floor.material)
        .to({ opacity : opacity }, duration)
        .onComplete(function(){
            if(callback) callback();
        })
        .start();
}

AppFloorManager.prototype.FadeOut = function(floors){
    if(floors.length === 0) return;
    var opacity = 0; // hidden
    var duration = 1000;
    var delay = 0;
    var onCompleteState = 3;

    for(var i in floors){
        this.animate(floors[i], opacity, duration, delay, onCompleteState);
        // delay += 250;
    }
}

AppFloorManager.prototype.FadeIn = function(floors){
    if(floors.length === 0){
        console.log('!! fadeIn failed', floors.length, list);
        return;
    }

    var opacity = 1; // visible
    var duration = 600; // faster than fade out
    var delay = 0;
    var onCompleteState = 2;

    for(var i in floors){
        this.animate(floors[i], opacity, duration, delay, onCompleteState);
        // delay += 25;
    }
}

AppFloorManager.prototype.Animate = function(name, opacity, duration, delay, state){
    var object = MFS.building.object.getObjectByName(name, true );

    if(object) {

        var _delay = parseInt(delay) > 0 ? delay : 0;

        setTimeout(function(){

            object.material.transparent = true;
            new TWEEN.Tween(object.material)
                .to({opacity: opacity}, duration)
                .start().onComplete(function(){ MFS.manager.SetState(state)});

        }, _delay);

    }else{
        console.log('Animation - object not found', name);
    }
}

AppFloorManager.prototype.ClippingGUI = function(){
    if(MFS.gui){

        var Empty = Object.freeze([]);
        var localPlane = this.localClippingPlane;
        var globalPlane = this.globalClippingPlane;

        var folderLocal = MFS.gui.addFolder( 'Local Clipping' ),
            propsLocal = {

                get 'Enabled'() { return MFS.renderer.localClippingEnabled; },
                set 'Enabled'( v ) { MFS.renderer.localClippingEnabled = v; },

                get 'Plane'() { return localPlane.constant; },
                set 'Plane'( v ) { localPlane.constant = v }

            },

            folderGlobal = MFS.gui.addFolder( 'Global Clipping' ),
            propsGlobal = {

                get 'Enabled'() { return MFS.renderer.clippingPlanes !== Empty; },
                set 'Enabled'( v  ) {
                    MFS.renderer.clippingPlanes = v ? globalPlane : Empty; },

                get 'Plane'() { return globalPlane.constant; },
                set 'Plane'( v ) { globalPlane.constant = v; }

            };

        folderLocal.add( propsLocal, 'Enabled' );
        folderLocal.add( propsLocal, 'Plane', 0, 100 );

        folderGlobal.add( propsGlobal, 'Enabled' );
        folderGlobal.add( propsGlobal, 'Plane', -0.4, 3 );

    }
}

AppFloorManager.prototype.FullFloorName = function(floorName){
    return this.floorNames[ currentFloor ];
}

;var AppRoads = function(){
   // this.file = TPL_images+'/data/roads/linkphx/roads.json';
    this.file = '/templates/images/data/roads/linkphx/roads.json';
    this.config = {
        color: OsmApi.materialColors.canvas, // road color - white
    }
    this.group = new THREE.Group();
    this.group.visible = false;
    //this.init();
}
AppRoads.prototype.init = function(){
    var scope = this;
    // this.loadFromJson(function(data){
    //     scope.build(data);
    // });
    // $.getJSON( TPL_images+'/data/roads/linkphx/roads2.json', function( data ) {
    //   console.log(data)
    //   scope.build(data);
    // });
}
AppRoads.prototype.show = function(){
    this.group.visible = true;
}
AppRoads.prototype.build = function(data){
    var pathPoints = [];
    var roadsMaterial = new THREE.MeshLambertMaterial({color: this.config.color });
    for(var group in data){
        pathPoints = [];
        for(var i=0;i<data[group].length;i++){
            // for curve
            pathPoints.push( new THREE.Vector3().set(
                data[group][i].position.x,
                data[group][i].position.y - 2,
                data[group][i].position.z
            ) );
        }
        // catmull curve
        var roadsGeometry = buildGeometry3(pathPoints);
        var road = new THREE.Mesh( roadsGeometry, roadsMaterial );
        this.group.add(road);
    }
    MFS.scene.add(this.group);
    function buildGeometry3(positions){
        // Define the curve
        var roadLanes = new THREE.CatmullRomCurve3(positions);
        roadLanes.type = 'centripetal'; // centripetal, chordal and catmullrom
        roadLanes.closed = false;
        // Set up settings for later extrusion
        var extrudeSettings = {
            steps           : 20, // smoothening on corners
            bevelEnabled    : false,
            extrudePath     : roadLanes,
            // depth: 8,
            // bevelThickness: 1,
            // bevelSize: 1,
            // bevelSegments: 1
        };
        // Define a triangle
        var pts = [], count = 3;
        for ( var i = 0; i < count; i ++ ) {
            var l = 5;
            var a = 2 * i / count * Math.PI;
            pts.push( new THREE.Vector2 ( Math.cos( a ) * l, Math.sin( a ) * l ) );
        }
        var shape = new THREE.Shape( pts );
        // Extrude the triangle along the CatmullRom curve
        var geometry = new THREE.ExtrudeGeometry( shape, extrudeSettings );
        return geometry;
    }
}
AppRoads.prototype.loadFromJson = function(callback){
    $.getJSON( this.file, function( data ) {
        if(callback) callback(data);
    });
};var AppIntro = function(){

    this.enabled = !! 1; // if intro animation is enabled

    this.duration = 1500; // ms, duration of intro animation. tho it also depends on machine speed because its FPS based

    // this.animation = [
    //     {"position":{ x: -193.16775028118064, y: 70.00000000000001, z: 51.392608917113165 },"target":{x:0,y:70,z:0}},
    //     {"position":{x:-202.31656556778896,y:207.99318943311812,z:-15.862449737056705},"target":{x:0,y:70,z:0}},
    //     {"position":{x:-166.61999771148027,y:333.3128061611143,z:-119.8288422828615},"target":{x:0,y:70,z:0}},
    //     {"position":{x:-57.976485201311945,y:475.2179046752143,z:-136.3343543986708},"target":{x:0,y:70,z:0}},
    // ];

    this.animation = [
        {"position":{ x:5.16775028118064, y: 70.00000000000001, z: 200.392608917113165 },"target":{x:0,y:70,z:0}},
        {"position":{ x:0.16775028118064, y: 180.00000000000001, z: 190.392608917113165 },"target":{x:0,y:70,z:0}},
        {"position":{ x:-13.16775028118064, y: 267.00000000000001, z: 170.392608917113165 },"target":{x:0,y:70,z:0}},
        {"position":{ x:-83.16775028118064, y: 333.00000000000001, z: 90.392608917113165 },"target":{x:0,y:70,z:0}}

        // {"position":{ x:13.16775028118064, y: 70.00000000000001, z: 171.392608917113165 },"target":{x:0,y:70,z:0}},
        // {"position":{x:-15.976485201311945,y:70.2179046752143,z:25.3343543986708},"target":{x:0,y:70,z:0}},
        // {"position":{x:89.976485201311945,y:70.2179046752143,z:186.3343543986708},"target":{x:0,y:70,z:0}},
    ];

    if(this.enabled){
        var firstStep = this.animation[0];
        AppCameraConfig.position.copy(firstStep.position);
        // AppCameraConfig.target.copy(firstStep.target);
    }

    this.step = 0;
    this.ticks = 0;
    this.path = [];
    this.progress = 0;
    this.binormal = new THREE.Vector3();
    this.normal = new THREE.Vector3();

    this.active = false;

    this.t0 = null; // performance calc
}

AppIntro.prototype.start = function(){

    this.path = this.make3dPath();

    if( ! this.enabled ){
        console.log('Intro called, but not enabled', this.enabled);
        return;
    }
    if(this.animation.length === 0){
        console.log('Intro called, but animation is not setup', this.animation.length, this.animation);
        return;
    }

    if(this.path){
        MFS.controls.enabled = false;
        this.active = true;
    }

    // then it runs this.run() on renderer ticks until complete

}

AppIntro.prototype.make3dPath = function(){

    var params = {
        extrusionSegments: 100,
        radiusSegments: 3,
        closed: false,
    };

    var points = [];
    for(var i=this.animation.length-1;i>=0;i--){
        points.push(new THREE.Vector3().copy(this.animation[i].position));
    }
    var extrudePath = new THREE.CatmullRomCurve3(points);
    // extrudePath.curveType = 'catmullrom';
    extrudePath.closed = params.closed;


    var wireframeMaterial = new THREE.MeshBasicMaterial( {
        color: new THREE.Color('#ff0716'),
        // opacity: 0.3,
        // wireframe: false,
        // transparent: false
    } );
    var geometry = new THREE.TubeBufferGeometry( extrudePath, params.extrusionSegments, 1, params.radiusSegments, params.closed );
    // var wireframe = new THREE.Mesh( geometry, wireframeMaterial );
    // MFS.scene.add( wireframe );


    // var cameraEndPoint = new THREE.Mesh(new THREE.CubeGeometry(30,30), new THREE.MeshBasicMaterial({color: new THREE.Color('#1f27ff')}));
    // var p = this.animation[0].position;
    // cameraEndPoint.position.copy(p);
    // MFS.scene.add(cameraEndPoint);

    return geometry;
}

AppIntro.prototype.run = function(){

    if(this.step === 0){
        this.t0 = performance.now();
        var maxFps = 50; // feels like 50 fps is average performance for three.js on this project
        var increasePerFpsTick = 1 /  maxFps;
        var durationInSeconds = this.duration / 700;
        this.step = increasePerFpsTick / durationInSeconds;
    }

    var max = 1;

    if(this.progress < max){
        this.progress += this.step; // 0.009;
        if(this.progress > max) this.progress = max;
        this.move(this.progress)
    }else if(this.active){
        this.moveComplete();
    }

}

AppIntro.prototype.moveComplete = function(){

    this.active = false;
    MFS.controls.lockControls();
    MFS.controls.enabled = true;

    var t1 = performance.now();
    MFS.manager.SetState(2);
    MFS.controls.StartRotating();
    //console.log("Intro took " + (t1 - this.t0) + " ms.");

}

AppIntro.prototype.move = function(t){
    // var time = Date.now();
    // var looptime = 20 * 1000;
    // var t = ( time % looptime ) / looptime;
    // var t = progress;

    this.ticks += 1;
    var pos = this.path.parameters.path.getPointAt( t );
    // pos.multiplyScalar( params.scale );
    // interpolation
    // var segments = this.path.tangents.length;
    // var pickt = t * segments;
    // var pick = Math.floor( pickt );
    // var pickNext = ( pick + 1 ) % segments;
    // this.binormal.subVectors( this.path.binormals[ pickNext ], this.path.binormals[ pick ] );
    // this.binormal.multiplyScalar( pickt - pick ).add( this.path.binormals[ pick ] );
    // var dir = this.path.parameters.path.getTangentAt( t );
    // var offset = 15;
    // this.normal.copy( this.binormal ).cross( dir ); // move on a offset on its binormal
    // pos.add( this.normal.clone().multiplyScalar( offset ) );

    // console.log('pos?',pos);

    // if(t > 0.99){
    //     console.log('CHECK', t, pos);
    // }

    MFS.camera.position.copy(pos);

    // splineCamera.position.copy( pos );
    // cameraEye.position.copy( pos );
    // using arclength for stablization in look ahead
    // var lookAt = this.path.parameters.path.getPointAt( ( t + 30 / this.path.parameters.path.getLength() ) % 1 ); //.multiplyScalar( params.scale );
    // camera orientation 2 - up orientation via normal
    // if ( ! params.lookAhead ) lookAt.copy( pos ).add( dir );
    // splineCamera.matrix.lookAt( splineCamera.position, lookAt, normal );
    // splineCamera.rotation.setFromRotationMatrix( splineCamera.matrix, splineCamera.rotation.order );



}

var AppIntroEditor = {
    enabled: true,
    data: [],
    link: undefined,
    ready: false,

    event: function(keyCode, down){

        if( ! this.enabled ) return;

        var key = {
            q: 81,
            r: 82,
            a: 65,
            n: 78,
        }

        if(!down){
            switch(keyCode){
                case key.a: this.addStep();
                    break;
                case key.q:   this.exportData();
                    break;
            }
        }


    },
    prepare: function(){

        if(this.ready){
            console.log('Intro editor already initialized.')
            return;
        }

        this.data = [];
        this.ready = true;

    },
    addStep : function(){

        if(!this.ready){
            this.prepare();
        }

        var anim = {
            position: new THREE.Vector3().copy(MFS.camera.position),
            target: new THREE.Vector3().copy(MFS.controls.target),
        }

        this.data.push(anim);

    },
    exportData: function(_type){

        if(this.link === undefined) {
            this.link = document.createElement('a');
            this.link.style.display = 'none';
            document.body.appendChild(this.link);
        }

        var filename = 'intro.json';
        var string = JSON.stringify(this.data);

        var type = _type || 'text/plain';
        var blob = new Blob( [ string ], { type: type } );

        this.link.href = URL.createObjectURL( blob );
        this.link.download = filename;
        this.link.click();

    }
};var AppManager = function(){
    console.log("Starting Manager");
    this.states = [
        {state: 0, process: "Loading environment"},
        {state: 1, process: "Loading buildings"},
        {state: 2, process: "Building screen"},
        {state: 3, process: "Floor plans screen"},
        {state: 4, process: "Intro"},
        {state: 5, process: "Going to floor plans view"},
        {state: 6, process: "Going to building view"},
        {state: 7, process: "Changing floors"}
    ]
    
    this.currentState = this.states[0];
    this.previousState = this.states[0];
}

AppManager.prototype.GetCurrentState = function(){
    return this.currentState;
}

AppManager.prototype.SetState = function(newState){
    console.log("Changing state to ", newState);
    this.previousState = this.currentState;
    if(this.states[newState] != undefined)
    {
        this.currentState = this.states[newState];
        return true;
    }
    else
    {
        return false;
    }
};'use strict';

// MFS stands for multi family search

var MFS = {
    version: 0.1,
    config: {},
}

MFS.init = function () {

    MFS.intro = new AppIntro();
    MFS.loader = new AppLoader();
    MFS.gui = new AppGui();
    MFS.container = new AppContainer();
    MFS.scene = new AppScene();
    MFS.camera = new AppCamera();
    MFS.roads = new AppRoads();
    MFS.building = new AppBuilding();
    MFS.renderer = new AppRenderer();
    MFS.events = new AppEvents();
    MFS.lights = new AppLights();
    MFS.highlight = new AppBuildingHighlight();
    MFS.controls = new AppControls();
    MFS.surroundings = new AppSurroundings();
    MFS.sky = new AppSky();
    MFS.manager = new AppManager();
    MFS.floorManager = new AppFloorManager();

    if(typeof  AppSecondaryInfo !== 'undefined')  AppSecondaryInfo.init(); // temp, when real data is used this should be adapted

    MFS.container.addRenderer(MFS.renderer);

    MFS.render();
}

MFS.render = function(){

    update();

    function update() {

        requestAnimationFrame(update);
        animate();
    }

    
    function animate(){
        if(MFS.intro.active) MFS.intro.run();
        if(MFS.controls) MFS.controls.update();
        if(MFS.lights) MFS.lights.update();
        TWEEN.update();
        MFS.renderer.render(MFS.scene, MFS.camera);
        //console.log(MFS.manager.GetCurrentState());
        if(MFS.controls.GetState() != -1){
            MFS.controls.StopRotating();
        }
    }

}