onError( new Error( 'THREE.ObjectLoader: Can\'t load ' + url ) ); error( 'ObjectLoader: Can\'t load ' + url ); return; } scope.parse( json, onLoad ); }, onProgress, onError ); } /** * Async version of {@link ObjectLoader#load}. * * @async * @param {string} url - The path/URL of the file to be loaded. This can also be a data URI. * @param {onProgressCallback} onProgress - Executed while the loading is in progress. * @return {Promise} A Promise that resolves with the loaded 3D object. */ async loadAsync( url, onProgress ) { const scope = this; const path = ( this.path === '' ) ? LoaderUtils.extractUrlBase( url ) : this.path; this.resourcePath = this.resourcePath || path; const loader = new FileLoader( this.manager ); loader.setPath( this.path ); loader.setRequestHeader( this.requestHeader ); loader.setWithCredentials( this.withCredentials ); const text = await loader.loadAsync( url, onProgress ); let json; try { json = JSON.parse( text ); } catch ( e ) { throw new Error( 'THREE.ObjectLoader: Can\'t parse ' + url + '. ' + e.message ); } const metadata = json.metadata; if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) { throw new Error( 'THREE.ObjectLoader: Can\'t load ' + url ); } return await scope.parseAsync( json ); } /** * Parses the given JSON. This is used internally by {@link ObjectLoader#load} * but can also be used directly to parse a previously loaded JSON structure. * * @param {Object} json - The serialized 3D object. * @param {onLoad} onLoad - Executed when all resources (e.g. textures) have been fully loaded. * @return {Object3D} The parsed 3D object. */ parse( json, onLoad ) { const animations = this.parseAnimations( json.animations ); const shapes = this.parseShapes( json.shapes ); const geometries = this.parseGeometries( json.geometries, shapes ); const images = this.parseImages( json.images, function () { if ( onLoad !== undefined ) onLoad( object ); } ); const textures = this.parseTextures( json.textures, images ); const materials = this.parseMaterials( json.materials, textures ); const object = this.parseObject( json.object, geometries, materials, textures, animations ); const skeletons = this.parseSkeletons( json.skeletons, object ); this.bindSkeletons( object, skeletons ); this.bindLightTargets( object ); // if ( onLoad !== undefined ) { let hasImages = false; for ( const uuid in images ) { if ( images[ uuid ].data instanceof HTMLImageElement ) { hasImages = true; break; } } if ( hasImages === false ) onLoad( object ); } return object; } /** * Async version of {@link ObjectLoader#parse}. * * @param {Object} json - The serialized 3D object. * @return {Promise} A Promise that resolves with the parsed 3D object. */ async parseAsync( json ) { const animations = this.parseAnimations( json.animations ); const shapes = this.parseShapes( json.shapes ); const geometries = this.parseGeometries( json.geometries, shapes ); const images = await this.parseImagesAsync( json.images ); const textures = this.parseTextures( json.textures, images ); const materials = this.parseMaterials( json.materials, textures ); const object = this.parseObject( json.object, geometries, materials, textures, animations ); const skeletons = this.parseSkeletons( json.skeletons, object ); this.bindSkeletons( object, skeletons ); this.bindLightTargets( object ); return object; } /** * Registers the given geometry at the internal * geometry library. * * @static * @param {string} type - The geometry type. * @param {BufferGeometry.constructor} geometryClass - The geometry class. */ static registerGeometry( type, geometryClass ) { _customGeometries[ type ] = geometryClass; } // internals parseShapes( json ) { const shapes = {}; if ( json !== undefined ) { for ( let i = 0, l = json.length; i < l; i ++ ) { const shape = new Shape().fromJSON( json[ i ] ); shapes[ shape.uuid ] = shape; } } return shapes; } parseSkeletons( json, object ) { const skeletons = {}; const bones = {}; // generate bone lookup table object.traverse( function ( child ) { if ( child.isBone ) bones[ child.uuid ] = child; } ); // create skeletons if ( json !== undefined ) { for ( let i = 0, l = json.length; i < l; i ++ ) { const skeleton = new Skeleton().fromJSON( json[ i ], bones ); skeletons[ skeleton.uuid ] = skeleton; } } return skeletons; } parseGeometries( json, shapes ) { const geometries = {}; if ( json !== undefined ) { const bufferGeometryLoader = new BufferGeometryLoader(); for ( let i = 0, l = json.length; i < l; i ++ ) { let geometry; const data = json[