===== FILE: public/saga2/GLTFLoader.js ===== ( function () { class GLTFLoader extends THREE.Loader { constructor( manager ) { super( manager ); this.dracoLoader = null; this.ktx2Loader = null; this.meshoptDecoder = null; this.pluginCallbacks = []; this.register( function ( parser ) { return new GLTFMaterialsClearcoatExtension( parser ); } ); this.register( function ( parser ) { return new GLTFTextureBasisUExtension( parser ); } ); this.register( function ( parser ) { return new GLTFTextureWebPExtension( parser ); } ); this.register( function ( parser ) { return new GLTFMaterialsTransmissionExtension( parser ); } ); this.register( function ( parser ) { return new GLTFLightsExtension( parser ); } ); this.register( function ( parser ) { return new GLTFMeshoptCompression( parser ); } ); } load( url, onLoad, onProgress, onError ) { const scope = this; let resourcePath; if ( this.resourcePath !== '' ) { resourcePath = this.resourcePath; } else if ( this.path !== '' ) { resourcePath = this.path; } else { resourcePath = 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. this.manager.itemStart( url ); const _onError = function ( e ) { if ( onError ) { onError( e ); } else { console.error( e ); } scope.manager.itemError( url ); scope.manager.itemEnd( url ); }; const loader = new THREE.FileLoader( this.manager ); loader.setPath( this.path ); loader.setResponseType( 'arraybuffer' ); loader.setRequestHeader( this.requestHeader ); loader.setWithCredentials( this.withCredentials ); loader.load( url, function ( data ) { try { scope.parse( data, resourcePath, function ( gltf ) { onLoad( gltf ); scope.manager.itemEnd( url ); }, _onError ); } catch ( e ) { _onError( e ); } }, onProgress, _onError ); } setDRACOLoader( dracoLoader ) { this.dracoLoader = dracoLoader; return this; } setDDSLoader() { throw new Error( 'THREE.GLTFLoader: "MSFT_texture_dds" no longer supported. Please update to "KHR_texture_basisu".' ); } setKTX2Loader( ktx2Loader ) { this.ktx2Loader = ktx2Loader; return this; } setMeshoptDecoder( meshoptDecoder ) { this.meshoptDecoder = meshoptDecoder; return this; } register( callback ) { if ( this.pluginCallbacks.indexOf( callback ) === - 1 ) { this.pluginCallbacks.push( callback ); } return this; } unregister( callback ) { if ( this.pluginCallbacks.indexOf( callback ) !== - 1 ) { this.pluginCallbacks.splice( this.pluginCallbacks.indexOf( callback ), 1 ); } return this; } parse( data, path, onLoad, onError ) { let content; const extensions = {}; const plugins = {}; if ( typeof data === 'string' ) { content = data; } else { const 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 ) ); } } const 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.' ) ); return; } const parser = new GLTFParser( json, { path: path || this.resourcePath || '', crossOrigin: this.crossOrigin, requestHeader: this.requestHeader, manager: this.manager, ktx2Loader: this.ktx2Loader, meshoptDecoder: this.meshoptDecoder } ); parser.fileLoader.setRequestHeader( this.requestHeader ); for ( let i = 0; i < this.pluginCallbacks.length; i ++ ) { const plugin = this.pluginCallbacks[ i ]( parser ); plugins[ plugin.name ] = plugin; // Workaround to avoid determining as unknown extension // in addUnknownExtensionsToUserData(). // Remove this workaround if we move all the existing // extension handlers to plugin system extensions[ plugin.name ] = true; } if ( json.extensionsUsed ) { for ( let i = 0; i < json.extensionsUsed.length; ++ i ) { const extensionName = json.extensionsUsed[ i ]; const extensionsRequired = json.extensionsRequired || []; switch ( extensionName ) { case EXTENSIONS.KHR_MATERIALS_UNLIT: extensions[ extensionName ] = new GLTFMaterialsUnlitExtension()