constructor( baseUrl = '', options = {} ) {

			this.baseUrl = baseUrl;
			this.options = options;
			this.materialsInfo = {};
			this.materials = {};
			this.materialsArray = [];
			this.nameLookup = {};
			this.crossOrigin = 'anonymous';
			this.side = this.options.side !== undefined ? this.options.side : THREE.FrontSide;
			this.wrap = this.options.wrap !== undefined ? this.options.wrap : THREE.RepeatWrapping;

		}
Create a new 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