function resolveURL( baseUrl, url ) {

			if ( typeof url !== 'string' || url === '' )
				return '';

			// Absolute URL
			if ( /^https?:\/\//i.test( url ) ) return url;

			return baseUrl + url;

		}
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