From e8044ee933b7e2f834855f28ea8575d82eb0eeac Mon Sep 17 00:00:00 2001
From: 无关风月 <443237572@qq.com>
Date: 星期五, 20 六月 2025 21:25:13 +0800
Subject: [PATCH] 提现管理
---
ManagementOKTravel/guns-admin/src/main/webapp/static/js/track2.js | 3856 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 3,856 insertions(+), 0 deletions(-)
diff --git a/ManagementOKTravel/guns-admin/src/main/webapp/static/js/track2.js b/ManagementOKTravel/guns-admin/src/main/webapp/static/js/track2.js
new file mode 100644
index 0000000..b4b0b7d
--- /dev/null
+++ b/ManagementOKTravel/guns-admin/src/main/webapp/static/js/track2.js
@@ -0,0 +1,3856 @@
+THREE.GLTFLoader = ( function () {
+
+ function GLTFLoader( manager ) {
+
+ THREE.Loader.call( this, 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 );
+
+ } );
+
+ }
+
+ GLTFLoader.prototype = Object.assign( Object.create( THREE.Loader.prototype ), {
+
+ constructor: GLTFLoader,
+
+ load: function ( url, onLoad, onProgress, onError ) {
+
+ var scope = this;
+
+ var 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 );
+
+ var _onError = function ( e ) {
+
+ if ( onError ) {
+
+ onError( e );
+
+ } else {
+
+ console.error( e );
+
+ }
+
+ scope.manager.itemError( url );
+ scope.manager.itemEnd( url );
+
+ };
+
+ var 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: function ( dracoLoader ) {
+
+ this.dracoLoader = dracoLoader;
+ return this;
+
+ },
+
+ setDDSLoader: function () {
+
+ throw new Error(
+
+ 'THREE.GLTFLoader: "MSFT_texture_dds" no longer supported. Please update to "KHR_texture_basisu".'
+
+ );
+
+ },
+
+ setKTX2Loader: function ( ktx2Loader ) {
+
+ this.ktx2Loader = ktx2Loader;
+ return this;
+
+ },
+
+ setMeshoptDecoder: function ( meshoptDecoder ) {
+
+ this.meshoptDecoder = meshoptDecoder;
+ return this;
+
+ },
+
+ register: function ( callback ) {
+
+ if ( this.pluginCallbacks.indexOf( callback ) === - 1 ) {
+
+ this.pluginCallbacks.push( callback );
+
+ }
+
+ return this;
+
+ },
+
+ unregister: function ( callback ) {
+
+ if ( this.pluginCallbacks.indexOf( callback ) !== - 1 ) {
+
+ this.pluginCallbacks.splice( this.pluginCallbacks.indexOf( callback ), 1 );
+
+ }
+
+ return this;
+
+ },
+
+ parse: function ( data, path, onLoad, onError ) {
+
+ var content;
+ var extensions = {};
+ var plugins = {};
+
+ 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.' ) );
+ return;
+
+ }
+
+ var 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 ( var i = 0; i < this.pluginCallbacks.length; i ++ ) {
+
+ var 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 ( var i = 0; i < json.extensionsUsed.length; ++ i ) {
+
+ var extensionName = json.extensionsUsed[ i ];
+ var extensionsRequired = json.extensionsRequired || [];
+
+ switch ( extensionName ) {
+
+ case EXTENSIONS.KHR_MATERIALS_UNLIT:
+ extensions[ extensionName ] = new GLTFMaterialsUnlitExtension();
+ 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.KHR_TEXTURE_TRANSFORM:
+ extensions[ extensionName ] = new GLTFTextureTransformExtension();
+ break;
+
+ case EXTENSIONS.KHR_MESH_QUANTIZATION:
+ extensions[ extensionName ] = new GLTFMeshQuantizationExtension();
+ break;
+
+ default:
+
+ if ( extensionsRequired.indexOf( extensionName ) >= 0 && plugins[ extensionName ] === undefined ) {
+
+ console.warn( 'THREE.GLTFLoader: Unknown extension "' + extensionName + '".' );
+
+ }
+
+ }
+
+ }
+
+ }
+
+ parser.setExtensions( extensions );
+ parser.setPlugins( plugins );
+ parser.parse( onLoad, 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_CLEARCOAT: 'KHR_materials_clearcoat',
+ KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
+ KHR_MATERIALS_TRANSMISSION: 'KHR_materials_transmission',
+ KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
+ KHR_TEXTURE_BASISU: 'KHR_texture_basisu',
+ KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform',
+ KHR_MESH_QUANTIZATION: 'KHR_mesh_quantization',
+ EXT_TEXTURE_WEBP: 'EXT_texture_webp',
+ EXT_MESHOPT_COMPRESSION: 'EXT_meshopt_compression'
+ };
+
+ /**
+ * Punctual Lights Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual
+ */
+ function GLTFLightsExtension( parser ) {
+
+ this.parser = parser;
+ this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;
+
+ // Object3D instance caches
+ this.cache = { refs: {}, uses: {} };
+
+ }
+
+ GLTFLightsExtension.prototype._markDefs = function () {
+
+ var parser = this.parser;
+ var nodeDefs = this.parser.json.nodes || [];
+
+ for ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {
+
+ var nodeDef = nodeDefs[ nodeIndex ];
+
+ if ( nodeDef.extensions
+ && nodeDef.extensions[ this.name ]
+ && nodeDef.extensions[ this.name ].light !== undefined ) {
+
+ parser._addNodeRef( this.cache, nodeDef.extensions[ this.name ].light );
+
+ }
+
+ }
+
+ };
+
+ GLTFLightsExtension.prototype._loadLight = function ( lightIndex ) {
+
+ var parser = this.parser;
+ var cacheKey = 'light:' + lightIndex;
+ var dependency = parser.cache.get( cacheKey );
+
+ if ( dependency ) return dependency;
+
+ var json = parser.json;
+ var extensions = ( json.extensions && json.extensions[ this.name ] ) || {};
+ var lightDefs = extensions.lights || [];
+ var lightDef = lightDefs[ lightIndex ];
+ 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 );
+
+ }
+
+ // Some lights (e.g. spot) default to a position other than the origin. Reset the position
+ // here, because node-level parsing will only override position if explicitly specified.
+ lightNode.position.set( 0, 0, 0 );
+
+ lightNode.decay = 2;
+
+ if ( lightDef.intensity !== undefined ) lightNode.intensity = lightDef.intensity;
+
+ lightNode.name = parser.createUniqueName( lightDef.name || ( 'light_' + lightIndex ) );
+
+ dependency = Promise.resolve( lightNode );
+
+ parser.cache.add( cacheKey, dependency );
+
+ return dependency;
+
+ };
+
+ GLTFLightsExtension.prototype.createNodeAttachment = function ( nodeIndex ) {
+
+ var self = this;
+ var parser = this.parser;
+ var json = parser.json;
+ var nodeDef = json.nodes[ nodeIndex ];
+ var lightDef = ( nodeDef.extensions && nodeDef.extensions[ this.name ] ) || {};
+ var lightIndex = lightDef.light;
+
+ if ( lightIndex === undefined ) return null;
+
+ return this._loadLight( lightIndex ).then( function ( light ) {
+
+ return parser._getNodeRef( self.cache, lightIndex, light );
+
+ } );
+
+ };
+
+ /**
+ * Unlit Materials Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_unlit
+ */
+ function GLTFMaterialsUnlitExtension() {
+
+ this.name = EXTENSIONS.KHR_MATERIALS_UNLIT;
+
+ }
+
+ GLTFMaterialsUnlitExtension.prototype.getMaterialType = function () {
+
+ return THREE.MeshBasicMaterial;
+
+ };
+
+ GLTFMaterialsUnlitExtension.prototype.extendParams = function ( materialParams, materialDef, parser ) {
+
+ var pending = [];
+
+ materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
+ materialParams.opacity = 1.0;
+
+ var metallicRoughness = materialDef.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 ) );
+
+ }
+
+ }
+
+ return Promise.all( pending );
+
+ };
+
+ /**
+ * Clearcoat Materials Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_clearcoat
+ */
+ function GLTFMaterialsClearcoatExtension( parser ) {
+
+ this.parser = parser;
+ this.name = EXTENSIONS.KHR_MATERIALS_CLEARCOAT;
+
+ }
+
+ GLTFMaterialsClearcoatExtension.prototype.getMaterialType = function ( materialIndex ) {
+
+ var parser = this.parser;
+ var materialDef = parser.json.materials[ materialIndex ];
+
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
+
+ return THREE.MeshPhysicalMaterial;
+
+ };
+
+ GLTFMaterialsClearcoatExtension.prototype.extendMaterialParams = function ( materialIndex, materialParams ) {
+
+ var parser = this.parser;
+ var materialDef = parser.json.materials[ materialIndex ];
+
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
+
+ return Promise.resolve();
+
+ }
+
+ var pending = [];
+
+ var extension = materialDef.extensions[ this.name ];
+
+ if ( extension.clearcoatFactor !== undefined ) {
+
+ materialParams.clearcoat = extension.clearcoatFactor;
+
+ }
+
+ if ( extension.clearcoatTexture !== undefined ) {
+
+ pending.push( parser.assignTexture( materialParams, 'clearcoatMap', extension.clearcoatTexture ) );
+
+ }
+
+ if ( extension.clearcoatRoughnessFactor !== undefined ) {
+
+ materialParams.clearcoatRoughness = extension.clearcoatRoughnessFactor;
+
+ }
+
+ if ( extension.clearcoatRoughnessTexture !== undefined ) {
+
+ pending.push( parser.assignTexture( materialParams, 'clearcoatRoughnessMap', extension.clearcoatRoughnessTexture ) );
+
+ }
+
+ if ( extension.clearcoatNormalTexture !== undefined ) {
+
+ pending.push( parser.assignTexture( materialParams, 'clearcoatNormalMap', extension.clearcoatNormalTexture ) );
+
+ if ( extension.clearcoatNormalTexture.scale !== undefined ) {
+
+ var scale = extension.clearcoatNormalTexture.scale;
+
+ // https://github.com/mrdoob/three.js/issues/11438#issuecomment-507003995
+ materialParams.clearcoatNormalScale = new THREE.Vector2( scale, - scale );
+
+ }
+
+ }
+
+ return Promise.all( pending );
+
+ };
+
+ /**
+ * Transmission Materials Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_transmission
+ * Draft: https://github.com/KhronosGroup/glTF/pull/1698
+ */
+ function GLTFMaterialsTransmissionExtension( parser ) {
+
+ this.parser = parser;
+ this.name = EXTENSIONS.KHR_MATERIALS_TRANSMISSION;
+
+ }
+
+ GLTFMaterialsTransmissionExtension.prototype.getMaterialType = function ( materialIndex ) {
+
+ var parser = this.parser;
+ var materialDef = parser.json.materials[ materialIndex ];
+
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
+
+ return THREE.MeshPhysicalMaterial;
+
+ };
+
+ GLTFMaterialsTransmissionExtension.prototype.extendMaterialParams = function ( materialIndex, materialParams ) {
+
+ var parser = this.parser;
+ var materialDef = parser.json.materials[ materialIndex ];
+
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
+
+ return Promise.resolve();
+
+ }
+
+ var pending = [];
+
+ var extension = materialDef.extensions[ this.name ];
+
+ if ( extension.transmissionFactor !== undefined ) {
+
+ materialParams.transmission = extension.transmissionFactor;
+
+ }
+
+ if ( extension.transmissionTexture !== undefined ) {
+
+ pending.push( parser.assignTexture( materialParams, 'transmissionMap', extension.transmissionTexture ) );
+
+ }
+
+ return Promise.all( pending );
+
+ };
+
+ /**
+ * BasisU Texture Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_basisu
+ */
+ function GLTFTextureBasisUExtension( parser ) {
+
+ this.parser = parser;
+ this.name = EXTENSIONS.KHR_TEXTURE_BASISU;
+
+ }
+
+ GLTFTextureBasisUExtension.prototype.loadTexture = function ( textureIndex ) {
+
+ var parser = this.parser;
+ var json = parser.json;
+
+ var textureDef = json.textures[ textureIndex ];
+
+ if ( ! textureDef.extensions || ! textureDef.extensions[ this.name ] ) {
+
+ return null;
+
+ }
+
+ var extension = textureDef.extensions[ this.name ];
+ var source = json.images[ extension.source ];
+ var loader = parser.options.ktx2Loader;
+
+ if ( ! loader ) {
+
+ if ( json.extensionsRequired && json.extensionsRequired.indexOf( this.name ) >= 0 ) {
+
+ throw new Error( 'THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures' );
+
+ } else {
+
+ // Assumes that the extension is optional and that a fallback texture is present
+ return null;
+
+ }
+
+ }
+
+ return parser.loadTextureImage( textureIndex, source, loader );
+
+ };
+
+ /**
+ * WebP Texture Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_texture_webp
+ */
+ function GLTFTextureWebPExtension( parser ) {
+
+ this.parser = parser;
+ this.name = EXTENSIONS.EXT_TEXTURE_WEBP;
+ this.isSupported = null;
+
+ }
+
+ GLTFTextureWebPExtension.prototype.loadTexture = function ( textureIndex ) {
+
+ var name = this.name;
+ var parser = this.parser;
+ var json = parser.json;
+
+ var textureDef = json.textures[ textureIndex ];
+
+ if ( ! textureDef.extensions || ! textureDef.extensions[ name ] ) {
+
+ return null;
+
+ }
+
+ var extension = textureDef.extensions[ name ];
+ var source = json.images[ extension.source ];
+
+ var loader = parser.textureLoader;
+ if ( source.uri ) {
+
+ var handler = parser.options.manager.getHandler( source.uri );
+ if ( handler !== null ) loader = handler;
+
+ }
+
+ return this.detectSupport().then( function ( isSupported ) {
+
+ if ( isSupported ) return parser.loadTextureImage( textureIndex, source, loader );
+
+ if ( json.extensionsRequired && json.extensionsRequired.indexOf( name ) >= 0 ) {
+
+ throw new Error( 'THREE.GLTFLoader: WebP required by asset but unsupported.' );
+
+ }
+
+ // Fall back to PNG or JPEG.
+ return parser.loadTexture( textureIndex );
+
+ } );
+
+ };
+
+ GLTFTextureWebPExtension.prototype.detectSupport = function () {
+
+ if ( ! this.isSupported ) {
+
+ this.isSupported = new Promise( function ( resolve ) {
+
+ var image = new Image();
+
+ // Lossy test image. Support for lossy images doesn't guarantee support for all
+ // WebP images, unfortunately.
+ image.src = 'data:image/webp;base64,UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA';
+
+ image.onload = image.onerror = function () {
+
+ resolve( image.height === 1 );
+
+ };
+
+ } );
+
+ }
+
+ return this.isSupported;
+
+ };
+
+ /**
+ * meshopt BufferView Compression Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_meshopt_compression
+ */
+ function GLTFMeshoptCompression( parser ) {
+
+ this.name = EXTENSIONS.EXT_MESHOPT_COMPRESSION;
+ this.parser = parser;
+
+ }
+
+ GLTFMeshoptCompression.prototype.loadBufferView = function ( index ) {
+
+ var json = this.parser.json;
+ var bufferView = json.bufferViews[ index ];
+
+ if ( bufferView.extensions && bufferView.extensions[ this.name ] ) {
+
+ var extensionDef = bufferView.extensions[ this.name ];
+
+ var buffer = this.parser.getDependency( 'buffer', extensionDef.buffer );
+ var decoder = this.parser.options.meshoptDecoder;
+
+ if ( ! decoder || ! decoder.supported ) {
+
+ if ( json.extensionsRequired && json.extensionsRequired.indexOf( this.name ) >= 0 ) {
+
+ throw new Error( 'THREE.GLTFLoader: setMeshoptDecoder must be called before loading compressed files' );
+
+ } else {
+
+ // Assumes that the extension is optional and that fallback buffer data is present
+ return null;
+
+ }
+
+ }
+
+ return Promise.all( [ buffer, decoder.ready ] ).then( function ( res ) {
+
+ var byteOffset = extensionDef.byteOffset || 0;
+ var byteLength = extensionDef.byteLength || 0;
+
+ var count = extensionDef.count;
+ var stride = extensionDef.byteStride;
+
+ var result = new ArrayBuffer( count * stride );
+ var source = new Uint8Array( res[ 0 ], byteOffset, byteLength );
+
+ decoder.decodeGltfBuffer( new Uint8Array( result ), count, stride, source, extensionDef.mode, extensionDef.filter );
+ return result;
+
+ } );
+
+ } else {
+
+ return null;
+
+ }
+
+ };
+
+ /* BINARY EXTENSION */
+ 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.' );
+
+ }
+
+ var chunkContentsLength = this.header.length - BINARY_EXTENSION_HEADER_LENGTH;
+ var chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH );
+ var chunkIndex = 0;
+
+ while ( chunkIndex < chunkContentsLength ) {
+
+ 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/tree/master/extensions/2.0/Khronos/KHR_draco_mesh_compression
+ */
+ 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;
+ this.dracoLoader.preload();
+
+ }
+
+ 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 ) {
+
+ var threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
+
+ threeAttributeMap[ threeAttributeName ] = gltfAttributeMap[ attributeName ];
+
+ }
+
+ for ( attributeName in primitive.attributes ) {
+
+ var threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
+
+ if ( gltfAttributeMap[ attributeName ] !== undefined ) {
+
+ var accessorDef = json.accessors[ primitive.attributes[ attributeName ] ];
+ var componentType = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
+
+ attributeTypeMap[ threeAttributeName ] = componentType;
+ attributeNormalizedMap[ threeAttributeName ] = 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 );
+
+ } );
+
+ } );
+
+ };
+
+ /**
+ * Texture Transform Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_transform
+ */
+ function GLTFTextureTransformExtension() {
+
+ this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM;
+
+ }
+
+ GLTFTextureTransformExtension.prototype.extendTexture = function ( texture, transform ) {
+
+ texture = texture.clone();
+
+ if ( transform.offset !== undefined ) {
+
+ texture.offset.fromArray( transform.offset );
+
+ }
+
+ if ( transform.rotation !== undefined ) {
+
+ texture.rotation = transform.rotation;
+
+ }
+
+ if ( transform.scale !== undefined ) {
+
+ texture.repeat.fromArray( transform.scale );
+
+ }
+
+ if ( transform.texCoord !== undefined ) {
+
+ console.warn( 'THREE.GLTFLoader: Custom UV sets in "' + this.name + '" extension not yet supported.' );
+
+ }
+
+ texture.needsUpdate = true;
+
+ return texture;
+
+ };
+
+ /**
+ * Specular-Glossiness Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness
+ */
+
+ /**
+ * A sub class of THREE.StandardMaterial with some of the functionality
+ * changed via the `onBeforeCompile` callback
+ * @pailhead
+ */
+
+ function GLTFMeshStandardSGMaterial( params ) {
+
+ THREE.MeshStandardMaterial.call( this );
+
+ this.isGLTFSpecularGlossinessMaterial = true;
+
+ //various chunks that need replacing
+ 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 * ( 1. - max( specularFactor.r, max( specularFactor.g, specularFactor.b ) ) );',
+ 'vec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );',
+ 'float geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );',
+ 'material.specularRoughness = max( 1.0 - glossinessFactor, 0.0525 ); // 0.0525 corresponds to the base mip of a 256 cubemap.',
+ 'material.specularRoughness += geometryRoughness;',
+ 'material.specularRoughness = min( material.specularRoughness, 1.0 );',
+ 'material.specularColor = specularFactor;',
+ ].join( '\n' );
+
+ var uniforms = {
+ specular: { value: new THREE.Color().setHex( 0xffffff ) },
+ glossiness: { value: 1 },
+ specularMap: { value: null },
+ glossinessMap: { value: null }
+ };
+
+ this._extraUniforms = uniforms;
+
+ this.onBeforeCompile = function ( shader ) {
+
+ for ( var uniformName in uniforms ) {
+
+ shader.uniforms[ uniformName ] = uniforms[ uniformName ];
+
+ }
+
+ shader.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 );
+
+ };
+
+ Object.defineProperties( this, {
+
+ specular: {
+ get: function () {
+
+ return uniforms.specular.value;
+
+ },
+ set: function ( v ) {
+
+ uniforms.specular.value = v;
+
+ }
+ },
+
+ specularMap: {
+ get: function () {
+
+ return uniforms.specularMap.value;
+
+ },
+ set: function ( v ) {
+
+ uniforms.specularMap.value = v;
+
+ if ( v ) {
+
+ this.defines.USE_SPECULARMAP = ''; // USE_UV is set by the renderer for specular maps
+
+ } else {
+
+ delete this.defines.USE_SPECULARMAP;
+
+ }
+
+ }
+ },
+
+ glossiness: {
+ get: function () {
+
+ return uniforms.glossiness.value;
+
+ },
+ set: function ( v ) {
+
+ uniforms.glossiness.value = v;
+
+ }
+ },
+
+ glossinessMap: {
+ get: function () {
+
+ return uniforms.glossinessMap.value;
+
+ },
+ set: function ( v ) {
+
+ uniforms.glossinessMap.value = v;
+
+ if ( v ) {
+
+ this.defines.USE_GLOSSINESSMAP = '';
+ this.defines.USE_UV = '';
+
+ } else {
+
+ delete this.defines.USE_GLOSSINESSMAP;
+ delete this.defines.USE_UV;
+
+ }
+
+ }
+ }
+
+ } );
+
+ delete this.metalness;
+ delete this.roughness;
+ delete this.metalnessMap;
+ delete this.roughnessMap;
+
+ this.setValues( params );
+
+ }
+
+ GLTFMeshStandardSGMaterial.prototype = Object.create( THREE.MeshStandardMaterial.prototype );
+ GLTFMeshStandardSGMaterial.prototype.constructor = GLTFMeshStandardSGMaterial;
+
+ GLTFMeshStandardSGMaterial.prototype.copy = function ( source ) {
+
+ THREE.MeshStandardMaterial.prototype.copy.call( this, source );
+ this.specularMap = source.specularMap;
+ this.specular.copy( source.specular );
+ this.glossinessMap = source.glossinessMap;
+ this.glossiness = source.glossiness;
+ delete this.metalness;
+ delete this.roughness;
+ delete this.metalnessMap;
+ delete this.roughnessMap;
+ return this;
+
+ };
+
+ function GLTFMaterialsPbrSpecularGlossinessExtension() {
+
+ return {
+
+ name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,
+
+ specularGlossinessParams: [
+ 'color',
+ 'map',
+ 'lightMap',
+ 'lightMapIntensity',
+ 'aoMap',
+ 'aoMapIntensity',
+ 'emissive',
+ 'emissiveIntensity',
+ 'emissiveMap',
+ 'bumpMap',
+ 'bumpScale',
+ 'normalMap',
+ 'normalMapType',
+ 'displacementMap',
+ 'displacementScale',
+ 'displacementBias',
+ 'specularMap',
+ 'specular',
+ 'glossinessMap',
+ 'glossiness',
+ 'alphaMap',
+ 'envMap',
+ 'envMapIntensity',
+ 'refractionRatio',
+ ],
+
+ getMaterialType: function () {
+
+ return GLTFMeshStandardSGMaterial;
+
+ },
+
+ extendParams: function ( materialParams, materialDef, parser ) {
+
+ var pbrSpecularGlossiness = materialDef.extensions[ this.name ];
+
+ materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
+ materialParams.opacity = 1.0;
+
+ var pending = [];
+
+ if ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) {
+
+ var array = pbrSpecularGlossiness.diffuseFactor;
+
+ materialParams.color.fromArray( array );
+ materialParams.opacity = array[ 3 ];
+
+ }
+
+ if ( pbrSpecularGlossiness.diffuseTexture !== undefined ) {
+
+ pending.push( parser.assignTexture( materialParams, 'map', pbrSpecularGlossiness.diffuseTexture ) );
+
+ }
+
+ materialParams.emissive = new THREE.Color( 0.0, 0.0, 0.0 );
+ materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
+ materialParams.specular = new THREE.Color( 1.0, 1.0, 1.0 );
+
+ if ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) {
+
+ materialParams.specular.fromArray( pbrSpecularGlossiness.specularFactor );
+
+ }
+
+ if ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) {
+
+ var specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture;
+ pending.push( parser.assignTexture( materialParams, 'glossinessMap', specGlossMapDef ) );
+ pending.push( parser.assignTexture( materialParams, 'specularMap', specGlossMapDef ) );
+
+ }
+
+ return Promise.all( pending );
+
+ },
+
+ createMaterial: function ( materialParams ) {
+
+ var material = new GLTFMeshStandardSGMaterial( materialParams );
+ material.fog = true;
+
+ material.color = materialParams.color;
+
+ material.map = materialParams.map === undefined ? null : materialParams.map;
+
+ material.lightMap = null;
+ material.lightMapIntensity = 1.0;
+
+ material.aoMap = materialParams.aoMap === undefined ? null : materialParams.aoMap;
+ material.aoMapIntensity = 1.0;
+
+ material.emissive = materialParams.emissive;
+ material.emissiveIntensity = 1.0;
+ material.emissiveMap = materialParams.emissiveMap === undefined ? null : materialParams.emissiveMap;
+
+ material.bumpMap = materialParams.bumpMap === undefined ? null : materialParams.bumpMap;
+ material.bumpScale = 1;
+
+ material.normalMap = materialParams.normalMap === undefined ? null : materialParams.normalMap;
+ material.normalMapType = THREE.TangentSpaceNormalMap;
+
+ if ( materialParams.normalScale ) material.normalScale = materialParams.normalScale;
+
+ material.displacementMap = null;
+ material.displacementScale = 1;
+ material.displacementBias = 0;
+
+ material.specularMap = materialParams.specularMap === undefined ? null : materialParams.specularMap;
+ material.specular = materialParams.specular;
+
+ material.glossinessMap = materialParams.glossinessMap === undefined ? null : materialParams.glossinessMap;
+ material.glossiness = materialParams.glossiness;
+
+ material.alphaMap = null;
+
+ material.envMap = materialParams.envMap === undefined ? null : materialParams.envMap;
+ material.envMapIntensity = 1.0;
+
+ material.refractionRatio = 0.98;
+
+ return material;
+
+ },
+
+ };
+
+ }
+
+ /**
+ * Mesh Quantization Extension
+ *
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization
+ */
+ function GLTFMeshQuantizationExtension() {
+
+ this.name = EXTENSIONS.KHR_MESH_QUANTIZATION;
+
+ }
+
+ /*********************************/
+ /********** 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 s2 = - 2 * ppp + 3 * pp;
+ var s3 = ppp - pp;
+ var s0 = 1 - s2;
+ var s1 = s3 - pp + p;
+
+ // 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_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_TYPE_SIZES = {
+ 'SCALAR': 1,
+ 'VEC2': 2,
+ 'VEC3': 3,
+ 'VEC4': 4,
+ 'MAT2': 4,
+ 'MAT3': 9,
+ 'MAT4': 16
+ };
+
+ var ATTRIBUTES = {
+ POSITION: 'position',
+ NORMAL: 'normal',
+ TANGENT: 'tangent',
+ TEXCOORD_0: 'uv',
+ TEXCOORD_1: 'uv2',
+ COLOR_0: 'color',
+ WEIGHTS_0: 'skinWeight',
+ JOINTS_0: 'skinIndex',
+ };
+
+ var PATH_PROPERTIES = {
+ scale: 'scale',
+ translation: 'position',
+ rotation: 'quaternion',
+ weights: 'morphTargetInfluences'
+ };
+
+ var INTERPOLATION = {
+ CUBICSPLINE: undefined, // We use a custom interpolant (GLTFCubicSplineInterpolation) for CUBICSPLINE tracks. Each
+ // keyframe track will be initialized with a default interpolation type, then modified.
+ LINEAR: THREE.InterpolateLinear,
+ STEP: THREE.InterpolateDiscrete
+ };
+
+ var ALPHA_MODES = {
+ OPAQUE: 'OPAQUE',
+ MASK: 'MASK',
+ BLEND: 'BLEND'
+ };
+
+ /* UTILITY FUNCTIONS */
+
+ function resolveURL( url, path ) {
+
+ // Invalid URL
+ if ( typeof url !== 'string' || url === '' ) return '';
+
+ // Host Relative URL
+ if ( /^https?:\/\//i.test( path ) && /^\//.test( url ) ) {
+
+ path = path.replace( /(^https?:\/\/[^\/]+).*/i, '$1' );
+
+ }
+
+ // Absolute URL http://,https://,//
+ if ( /^(https?:)?\/\//i.test( url ) ) return url;
+
+ // Data URI
+ if ( /^data:.*,.*$/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( cache ) {
+
+ if ( cache[ 'DefaultMaterial' ] === undefined ) {
+
+ cache[ 'DefaultMaterial' ] = new THREE.MeshStandardMaterial( {
+ color: 0xFFFFFF,
+ emissive: 0x000000,
+ metalness: 1,
+ roughness: 1,
+ transparent: false,
+ depthTest: true,
+ side: THREE.FrontSide
+ } );
+
+ }
+
+ return cache[ 'DefaultMaterial' ];
+
+ }
+
+ 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} gltfDef
+ */
+ function assignExtrasToUserData( object, gltfDef ) {
+
+ if ( gltfDef.extras !== undefined ) {
+
+ if ( typeof gltfDef.extras === 'object' ) {
+
+ Object.assign( 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 {GLTFParser} parser
+ * @return {Promise<THREE.BufferGeometry>}
+ */
+ function addMorphTargets( geometry, targets, parser ) {
+
+ 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 Promise.resolve( geometry );
+
+ var pendingPositionAccessors = [];
+ var pendingNormalAccessors = [];
+
+ for ( var i = 0, il = targets.length; i < il; i ++ ) {
+
+ var target = targets[ i ];
+
+ if ( hasMorphPosition ) {
+
+ var pendingAccessor = target.POSITION !== undefined
+ ? parser.getDependency( 'accessor', target.POSITION )
+ : geometry.attributes.position;
+
+ pendingPositionAccessors.push( pendingAccessor );
+
+ }
+
+ if ( hasMorphNormal ) {
+
+ var pendingAccessor = target.NORMAL !== undefined
+ ? parser.getDependency( 'accessor', target.NORMAL )
+ : geometry.attributes.normal;
+
+ pendingNormalAccessors.push( pendingAccessor );
+
+ }
+
+ }
+
+ return Promise.all( [
+ Promise.all( pendingPositionAccessors ),
+ Promise.all( pendingNormalAccessors )
+ ] ).then( function ( accessors ) {
+
+ var morphPositions = accessors[ 0 ];
+ var morphNormals = accessors[ 1 ];
+
+ if ( hasMorphPosition ) geometry.morphAttributes.position = morphPositions;
+ if ( hasMorphNormal ) geometry.morphAttributes.normal = morphNormals;
+ geometry.morphTargetsRelative = true;
+
+ return geometry;
+
+ } );
+
+ }
+
+ /**
+ * @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 createPrimitiveKey( primitiveDef ) {
+
+ var dracoExtension = primitiveDef.extensions && primitiveDef.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ];
+ var geometryKey;
+
+ if ( dracoExtension ) {
+
+ geometryKey = 'draco:' + dracoExtension.bufferView
+ + ':' + dracoExtension.indices
+ + ':' + createAttributesKey( dracoExtension.attributes );
+
+ } else {
+
+ geometryKey = primitiveDef.indices + ':' + createAttributesKey( primitiveDef.attributes ) + ':' + primitiveDef.mode;
+
+ }
+
+ return geometryKey;
+
+ }
+
+ function createAttributesKey( attributes ) {
+
+ var attributesKey = '';
+
+ var keys = Object.keys( attributes ).sort();
+
+ for ( var i = 0, il = keys.length; i < il; i ++ ) {
+
+ attributesKey += keys[ i ] + ':' + attributes[ keys[ i ] ] + ';';
+
+ }
+
+ return attributesKey;
+
+ }
+
+ /* GLTF PARSER */
+
+ function GLTFParser( json, options ) {
+
+ this.json = json || {};
+ this.extensions = {};
+ this.plugins = {};
+ this.options = options || {};
+
+ // loader object cache
+ this.cache = new GLTFRegistry();
+
+ // associations between Three.js objects and glTF elements
+ this.associations = new Map();
+
+ // BufferGeometry caching
+ this.primitiveCache = {};
+
+ // Object3D instance caches
+ this.meshCache = { refs: {}, uses: {} };
+ this.cameraCache = { refs: {}, uses: {} };
+ this.lightCache = { refs: {}, uses: {} };
+
+ // Track node names, to ensure no duplicates
+ this.nodeNamesUsed = {};
+
+ // Use an ImageBitmapLoader if imageBitmaps are supported. Moves much of the
+ // expensive work of uploading a texture to the GPU off the main thread.
+ if ( typeof createImageBitmap !== 'undefined' && /Firefox/.test( navigator.userAgent ) === false ) {
+
+ this.textureLoader = new THREE.ImageBitmapLoader( this.options.manager );
+
+ } else {
+
+ this.textureLoader = new THREE.TextureLoader( this.options.manager );
+
+ }
+
+ this.textureLoader.setCrossOrigin( this.options.crossOrigin );
+ this.textureLoader.setRequestHeader( this.options.requestHeader );
+
+ this.fileLoader = new THREE.FileLoader( this.options.manager );
+ this.fileLoader.setResponseType( 'arraybuffer' );
+
+ if ( this.options.crossOrigin === 'use-credentials' ) {
+
+ this.fileLoader.setWithCredentials( true );
+
+ }
+
+ }
+
+ GLTFParser.prototype.setExtensions = function ( extensions ) {
+
+ this.extensions = extensions;
+
+ };
+
+ GLTFParser.prototype.setPlugins = function ( plugins ) {
+
+ this.plugins = plugins;
+
+ };
+
+ GLTFParser.prototype.parse = function ( onLoad, onError ) {
+
+ var parser = this;
+ var json = this.json;
+ var extensions = this.extensions;
+
+ // Clear the loader cache
+ this.cache.removeAll();
+
+ // Mark the special nodes/meshes in json for efficient parse
+ this._invokeAll( function ( ext ) {
+
+ return ext._markDefs && ext._markDefs();
+
+ } );
+
+ Promise.all( this._invokeAll( function ( ext ) {
+
+ return ext.beforeRoot && ext.beforeRoot();
+
+ } ) ).then( function () {
+
+ return Promise.all( [
+
+ parser.getDependencies( 'scene' ),
+ parser.getDependencies( 'animation' ),
+ parser.getDependencies( 'camera' ),
+
+ ] );
+
+ } ).then( function ( dependencies ) {
+
+ var result = {
+ scene: dependencies[ 0 ][ json.scene || 0 ],
+ scenes: dependencies[ 0 ],
+ animations: dependencies[ 1 ],
+ cameras: dependencies[ 2 ],
+ asset: json.asset,
+ parser: parser,
+ userData: {}
+ };
+
+ addUnknownExtensionsToUserData( extensions, result, json );
+
+ assignExtrasToUserData( result, json );
+
+ Promise.all( parser._invokeAll( function ( ext ) {
+
+ return ext.afterRoot && ext.afterRoot( result );
+
+ } ) ).then( function () {
+
+ onLoad( result );
+
+ } );
+
+ } ).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 || [];
+
+ // 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;
+
+ }
+
+ }
+
+ // Iterate over all nodes, marking references to shared resources,
+ // as well as skeleton joints.
+ for ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {
+
+ var nodeDef = nodeDefs[ nodeIndex ];
+
+ if ( nodeDef.mesh !== undefined ) {
+
+ this._addNodeRef( this.meshCache, 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;
+
+ }
+
+ }
+
+ if ( nodeDef.camera !== undefined ) {
+
+ this._addNodeRef( this.cameraCache, nodeDef.camera );
+
+ }
+
+ }
+
+ };
+
+ /**
+ * Counts references to shared node / Object3D resources. These resources
+ * can be reused, or "instantiated", at multiple nodes in the scene
+ * hierarchy. Mesh, Camera, and Light instances are instantiated and must
+ * be marked. Non-scenegraph resources (like Materials, Geometries, and
+ * Textures) can be reused directly and are not marked here.
+ *
+ * Example: CesiumMilkTruck sample model reuses "Wheel" meshes.
+ */
+ GLTFParser.prototype._addNodeRef = function ( cache, index ) {
+
+ if ( index === undefined ) return;
+
+ if ( cache.refs[ index ] === undefined ) {
+
+ cache.refs[ index ] = cache.uses[ index ] = 0;
+
+ }
+
+ cache.refs[ index ] ++;
+
+ };
+
+ /** Returns a reference to a shared resource, cloning it if necessary. */
+ GLTFParser.prototype._getNodeRef = function ( cache, index, object ) {
+
+ if ( cache.refs[ index ] <= 1 ) return object;
+
+ var ref = object.clone();
+
+ ref.name += '_instance_' + ( cache.uses[ index ] ++ );
+
+ return ref;
+
+ };
+
+ GLTFParser.prototype._invokeOne = function ( func ) {
+
+ var extensions = Object.values( this.plugins );
+ extensions.push( this );
+
+ for ( var i = 0; i < extensions.length; i ++ ) {
+
+ var result = func( extensions[ i ] );
+
+ if ( result ) return result;
+
+ }
+
+ };
+
+ GLTFParser.prototype._invokeAll = function ( func ) {
+
+ var extensions = Object.values( this.plugins );
+ extensions.unshift( this );
+
+ var pending = [];
+
+ for ( var i = 0; i < extensions.length; i ++ ) {
+
+ var result = func( extensions[ i ] );
+
+ if ( result ) pending.push( result );
+
+ }
+
+ return pending;
+
+ };
+
+ /**
+ * Requests the specified dependency asynchronously, with caching.
+ * @param {string} type
+ * @param {number} index
+ * @return {Promise<THREE.Object3D|THREE.Material|THREE.Texture|THREE.AnimationClip|ArrayBuffer|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._invokeOne( function ( ext ) {
+
+ return ext.loadMesh && ext.loadMesh( index );
+
+ } );
+ break;
+
+ case 'accessor':
+ dependency = this.loadAccessor( index );
+ break;
+
+ case 'bufferView':
+ dependency = this._invokeOne( function ( ext ) {
+
+ return ext.loadBufferView && ext.loadBufferView( index );
+
+ } );
+ break;
+
+ case 'buffer':
+ dependency = this.loadBuffer( index );
+ break;
+
+ case 'material':
+ dependency = this._invokeOne( function ( ext ) {
+
+ return ext.loadMaterial && ext.loadMaterial( index );
+
+ } );
+ break;
+
+ case 'texture':
+ dependency = this._invokeOne( function ( ext ) {
+
+ return ext.loadTexture && ext.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;
+
+ };
+
+ /**
+ * 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 Promise.resolve( 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 ) {
+
+ // Each "slice" of the buffer, as defined by 'count' elements of 'byteStride' bytes, gets its own InterleavedBuffer
+ // This makes sure that IBA.count reflects accessor.count properly
+ var ibSlice = Math.floor( byteOffset / byteStride );
+ var ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType + ':' + ibSlice + ':' + accessorDef.count;
+ var ib = parser.cache.get( ibCacheKey );
+
+ if ( ! ib ) {
+
+ array = new TypedArray( bufferView, ibSlice * byteStride, accessorDef.count * byteStride / elementBytes );
+
+ // 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 % byteStride ) / 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 = new THREE.BufferAttribute( bufferAttribute.array.slice(), bufferAttribute.itemSize, bufferAttribute.normalized );
+
+ }
+
+ 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 json = this.json;
+ var options = this.options;
+ var textureDef = json.textures[ textureIndex ];
+ var source = json.images[ textureDef.source ];
+
+ var loader = this.textureLoader;
+
+ if ( source.uri ) {
+
+ var handler = options.manager.getHandler( source.uri );
+ if ( handler !== null ) loader = handler;
+
+ }
+
+ return this.loadTextureImage( textureIndex, source, loader );
+
+ };
+
+ GLTFParser.prototype.loadTextureImage = function ( textureIndex, source, loader ) {
+
+ var parser = this;
+ var json = this.json;
+ var options = this.options;
+
+ var textureDef = json.textures[ textureIndex ];
+
+ var URL = self.URL || self.webkitURL;
+
+ var sourceURI = source.uri;
+ var isObjectURL = false;
+ var hasAlpha = true;
+
+ if ( source.mimeType === 'image/jpeg' ) hasAlpha = false;
+
+ if ( source.bufferView !== undefined ) {
+
+ // Load binary image data from bufferView, if provided.
+
+ sourceURI = parser.getDependency( 'bufferView', source.bufferView ).then( function ( bufferView ) {
+
+ if ( source.mimeType === 'image/png' ) {
+
+ // Inspect the PNG 'IHDR' chunk to determine whether the image could have an
+ // alpha channel. This check is conservative — the image could have an alpha
+ // channel with all values == 1, and the indexed type (colorType == 3) only
+ // sometimes contains alpha.
+ //
+ // https://en.wikipedia.org/wiki/Portable_Network_Graphics#File_header
+ var colorType = new DataView( bufferView, 25, 1 ).getUint8( 0, false );
+ hasAlpha = colorType === 6 || colorType === 4 || colorType === 3;
+
+ }
+
+ isObjectURL = true;
+ var blob = new Blob( [ bufferView ], { type: source.mimeType } );
+ sourceURI = URL.createObjectURL( blob );
+ return sourceURI;
+
+ } );
+
+ } else if ( source.uri === undefined ) {
+
+ throw new Error( 'THREE.GLTFLoader: Image ' + textureIndex + ' is missing URI and bufferView' );
+
+ }
+
+ return Promise.resolve( sourceURI ).then( function ( sourceURI ) {
+
+ return new Promise( function ( resolve, reject ) {
+
+ var onLoad = resolve;
+
+ if ( loader.isImageBitmapLoader === true ) {
+
+ onLoad = function ( imageBitmap ) {
+
+ resolve( new THREE.CanvasTexture( imageBitmap ) );
+
+ };
+
+ }
+
+ loader.load( resolveURL( sourceURI, options.path ), onLoad, undefined, reject );
+
+ } );
+
+ } ).then( function ( texture ) {
+
+ // Clean up resources and configure Texture.
+
+ if ( isObjectURL === true ) {
+
+ URL.revokeObjectURL( sourceURI );
+
+ }
+
+ texture.flipY = false;
+
+ if ( textureDef.name ) texture.name = textureDef.name;
+
+ // When there is definitely no alpha channel in the texture, set RGBFormat to save space.
+ if ( ! hasAlpha ) texture.format = THREE.RGBFormat;
+
+ 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;
+
+ parser.associations.set( texture, {
+ type: 'textures',
+ index: textureIndex
+ } );
+
+ return texture;
+
+ } );
+
+ };
+
+ /**
+ * Asynchronously assigns a texture to the given material parameters.
+ * @param {Object} materialParams
+ * @param {string} mapName
+ * @param {Object} mapDef
+ * @return {Promise}
+ */
+ GLTFParser.prototype.assignTexture = function ( materialParams, mapName, mapDef ) {
+
+ var parser = this;
+
+ return this.getDependency( 'texture', mapDef.index ).then( function ( texture ) {
+
+ // Materials sample aoMap from UV set 1 and other maps from UV set 0 - this can't be configured
+ // However, we will copy UV set 0 to UV set 1 on demand for aoMap
+ if ( mapDef.texCoord !== undefined && mapDef.texCoord != 0 && ! ( mapName === 'aoMap' && mapDef.texCoord == 1 ) ) {
+
+ console.warn( 'THREE.GLTFLoader: Custom UV set ' + mapDef.texCoord + ' for texture ' + mapName + ' not yet supported.' );
+
+ }
+
+ if ( parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] ) {
+
+ var transform = mapDef.extensions !== undefined ? mapDef.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] : undefined;
+
+ if ( transform ) {
+
+ var gltfReference = parser.associations.get( texture );
+ texture = parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ].extendTexture( texture, transform );
+ parser.associations.set( texture, gltfReference );
+
+ }
+
+ }
+
+ materialParams[ mapName ] = texture;
+
+ } );
+
+ };
+
+ /**
+ * Assigns final material to a Mesh, Line, or Points instance. The instance
+ * already has a material (generated from the glTF material options alone)
+ * but reuse of the same glTF material may require multiple threejs materials
+ * to accommodate different primitive types, defines, etc. New materials will
+ * be created if necessary, and reused from a cache.
+ * @param {THREE.Object3D} mesh Mesh, Line, or Points instance.
+ */
+ GLTFParser.prototype.assignFinalMaterial = function ( mesh ) {
+
+ var geometry = mesh.geometry;
+ var material = mesh.material;
+
+ var useVertexTangents = geometry.attributes.tangent !== undefined;
+ 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;
+
+ if ( mesh.isPoints ) {
+
+ var cacheKey = 'PointsMaterial:' + material.uuid;
+
+ var pointsMaterial = this.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.sizeAttenuation = false; // glTF spec says points should be 1px
+
+ this.cache.add( cacheKey, pointsMaterial );
+
+ }
+
+ material = pointsMaterial;
+
+ } else if ( mesh.isLine ) {
+
+ var cacheKey = 'LineBasicMaterial:' + material.uuid;
+
+ var lineMaterial = this.cache.get( cacheKey );
+
+ if ( ! lineMaterial ) {
+
+ lineMaterial = new THREE.LineBasicMaterial();
+ THREE.Material.prototype.copy.call( lineMaterial, material );
+ lineMaterial.color.copy( material.color );
+
+ this.cache.add( cacheKey, lineMaterial );
+
+ }
+
+ material = lineMaterial;
+
+ }
+
+ // Clone the material if it will be modified
+ if ( useVertexTangents || useVertexColors || useFlatShading || useSkinning || useMorphTargets ) {
+
+ var cacheKey = 'ClonedMaterial:' + material.uuid + ':';
+
+ if ( material.isGLTFSpecularGlossinessMaterial ) cacheKey += 'specular-glossiness:';
+ if ( useSkinning ) cacheKey += 'skinning:';
+ if ( useVertexTangents ) cacheKey += 'vertex-tangents:';
+ if ( useVertexColors ) cacheKey += 'vertex-colors:';
+ if ( useFlatShading ) cacheKey += 'flat-shading:';
+ if ( useMorphTargets ) cacheKey += 'morph-targets:';
+ if ( useMorphNormals ) cacheKey += 'morph-normals:';
+
+ var cachedMaterial = this.cache.get( cacheKey );
+
+ if ( ! cachedMaterial ) {
+
+ cachedMaterial = material.clone();
+
+ if ( useSkinning ) cachedMaterial.skinning = true;
+ if ( useVertexColors ) cachedMaterial.vertexColors = true;
+ if ( useFlatShading ) cachedMaterial.flatShading = true;
+ if ( useMorphTargets ) cachedMaterial.morphTargets = true;
+ if ( useMorphNormals ) cachedMaterial.morphNormals = true;
+
+ if ( useVertexTangents ) {
+
+ cachedMaterial.vertexTangents = true;
+
+ // https://github.com/mrdoob/three.js/issues/11438#issuecomment-507003995
+ if ( cachedMaterial.normalScale ) cachedMaterial.normalScale.y *= - 1;
+ if ( cachedMaterial.clearcoatNormalScale ) cachedMaterial.clearcoatNormalScale.y *= - 1;
+
+ }
+
+ this.cache.add( cacheKey, cachedMaterial );
+
+ this.associations.set( cachedMaterial, this.associations.get( material ) );
+
+ }
+
+ material = cachedMaterial;
+
+ }
+
+ // workarounds for mesh and geometry
+
+ if ( material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined ) {
+
+ geometry.setAttribute( 'uv2', geometry.attributes.uv );
+
+ }
+
+ mesh.material = material;
+
+ };
+
+ GLTFParser.prototype.getMaterialType = function ( /* materialIndex */ ) {
+
+ return THREE.MeshStandardMaterial;
+
+ };
+
+ /**
+ * 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();
+ pending.push( sgExtension.extendParams( materialParams, materialDef, parser ) );
+
+ } else if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ] ) {
+
+ var kmuExtension = extensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ];
+ materialType = kmuExtension.getMaterialType();
+ pending.push( kmuExtension.extendParams( materialParams, materialDef, parser ) );
+
+ } else {
+
+ // Specification:
+ // https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material
+
+ 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 ) );
+
+ }
+
+ materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;
+ materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;
+
+ if ( metallicRoughness.metallicRoughnessTexture !== undefined ) {
+
+ pending.push( parser.assignTexture( materialParams, 'metalnessMap', metallicRoughness.metallicRoughnessTexture ) );
+ pending.push( parser.assignTexture( materialParams, 'roughnessMap', metallicRoughness.metallicRoughnessTexture ) );
+
+ }
+
+ materialType = this._invokeOne( function ( ext ) {
+
+ return ext.getMaterialType && ext.getMaterialType( materialIndex );
+
+ } );
+
+ pending.push( Promise.all( this._invokeAll( function ( ext ) {
+
+ return ext.extendMaterialParams && ext.extendMaterialParams( materialIndex, materialParams );
+
+ } ) ) );
+
+ }
+
+ if ( materialDef.doubleSided === true ) {
+
+ materialParams.side = THREE.DoubleSide;
+
+ }
+
+ var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;
+
+ if ( alphaMode === ALPHA_MODES.BLEND ) {
+
+ materialParams.transparent = true;
+
+ // See: https://github.com/mrdoob/three.js/issues/17706
+ materialParams.depthWrite = false;
+
+ } 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 ) );
+
+ // https://github.com/mrdoob/three.js/issues/11438#issuecomment-507003995
+ 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 ) );
+
+ 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 ) );
+
+ }
+
+ return Promise.all( pending ).then( function () {
+
+ var material;
+
+ if ( materialType === GLTFMeshStandardSGMaterial ) {
+
+ material = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams );
+
+ } else {
+
+ material = new materialType( materialParams );
+
+ }
+
+ if ( materialDef.name ) material.name = materialDef.name;
+
+ // baseColorTexture, emissiveTexture, and specularGlossinessTexture use sRGB encoding.
+ if ( material.map ) material.map.encoding = THREE.sRGBEncoding;
+ if ( material.emissiveMap ) material.emissiveMap.encoding = THREE.sRGBEncoding;
+
+ assignExtrasToUserData( material, materialDef );
+
+ parser.associations.set( material, { type: 'materials', index: materialIndex } );
+
+ if ( materialDef.extensions ) addUnknownExtensionsToUserData( extensions, material, materialDef );
+
+ return material;
+
+ } );
+
+ };
+
+ /** When Object3D instances are targeted by animation, they need unique names. */
+ GLTFParser.prototype.createUniqueName = function ( originalName ) {
+
+ var sanitizedName = THREE.PropertyBinding.sanitizeNodeName( originalName || '' );
+
+ var name = sanitizedName;
+
+ for ( var i = 1; this.nodeNamesUsed[ name ]; ++ i ) {
+
+ name = sanitizedName + '_' + i;
+
+ }
+
+ this.nodeNamesUsed[ name ] = true;
+
+ return name;
+
+ };
+
+ /**
+ * @param {THREE.BufferGeometry} geometry
+ * @param {GLTF.Primitive} primitiveDef
+ * @param {GLTFParser} parser
+ */
+ function computeBounds( geometry, primitiveDef, parser ) {
+
+ var attributes = primitiveDef.attributes;
+
+ var box = new THREE.Box3();
+
+ if ( attributes.POSITION !== undefined ) {
+
+ var accessor = parser.json.accessors[ attributes.POSITION ];
+
+ var min = accessor.min;
+ var max = accessor.max;
+
+ // glTF requires 'min' and 'max', but VRM (which extends glTF) currently ignores that requirement.
+
+ if ( min !== undefined && max !== undefined ) {
+
+ box.set(
+ new THREE.Vector3( min[ 0 ], min[ 1 ], min[ 2 ] ),
+ new THREE.Vector3( max[ 0 ], max[ 1 ], max[ 2 ] ) );
+
+ } else {
+
+ console.warn( 'THREE.GLTFLoader: Missing min/max properties for accessor POSITION.' );
+
+ return;
+
+ }
+
+ } else {
+
+ return;
+
+ }
+
+ var targets = primitiveDef.targets;
+
+ if ( targets !== undefined ) {
+
+ var maxDisplacement = new THREE.Vector3();
+ var vector = new THREE.Vector3();
+
+ for ( var i = 0, il = targets.length; i < il; i ++ ) {
+
+ var target = targets[ i ];
+
+ if ( target.POSITION !== undefined ) {
+
+ var accessor = parser.json.accessors[ target.POSITION ];
+ var min = accessor.min;
+ var max = accessor.max;
+
+ // glTF requires 'min' and 'max', but VRM (which extends glTF) currently ignores that requirement.
+
+ if ( min !== undefined && max !== undefined ) {
+
+ // we need to get max of absolute components because target weight is [-1,1]
+ vector.setX( Math.max( Math.abs( min[ 0 ] ), Math.abs( max[ 0 ] ) ) );
+ vector.setY( Math.max( Math.abs( min[ 1 ] ), Math.abs( max[ 1 ] ) ) );
+ vector.setZ( Math.max( Math.abs( min[ 2 ] ), Math.abs( max[ 2 ] ) ) );
+
+ // Note: this assumes that the sum of all weights is at most 1. This isn't quite correct - it's more conservative
+ // to assume that each target can have a max weight of 1. However, for some use cases - notably, when morph targets
+ // are used to implement key-frame animations and as such only two are active at a time - this results in very large
+ // boxes. So for now we make a box that's sometimes a touch too small but is hopefully mostly of reasonable size.
+ maxDisplacement.max( vector );
+
+ } else {
+
+ console.warn( 'THREE.GLTFLoader: Missing min/max properties for accessor POSITION.' );
+
+ }
+
+ }
+
+ }
+
+ // As per comment above this box isn't conservative, but has a reasonable size for a very large number of morph targets.
+ box.expandByVector( maxDisplacement );
+
+ }
+
+ geometry.boundingBox = box;
+
+ var sphere = new THREE.Sphere();
+
+ box.getCenter( sphere.center );
+ sphere.radius = box.min.distanceTo( box.max ) / 2;
+
+ geometry.boundingSphere = sphere;
+
+ }
+
+ /**
+ * @param {THREE.BufferGeometry} geometry
+ * @param {GLTF.Primitive} primitiveDef
+ * @param {GLTFParser} parser
+ * @return {Promise<THREE.BufferGeometry>}
+ */
+ function addPrimitiveAttributes( geometry, primitiveDef, parser ) {
+
+ var attributes = primitiveDef.attributes;
+
+ var pending = [];
+
+ function assignAttributeAccessor( accessorIndex, attributeName ) {
+
+ return parser.getDependency( 'accessor', accessorIndex )
+ .then( function ( accessor ) {
+
+ geometry.setAttribute( attributeName, accessor );
+
+ } );
+
+ }
+
+ for ( var gltfAttributeName in attributes ) {
+
+ var threeAttributeName = ATTRIBUTES[ gltfAttributeName ] || gltfAttributeName.toLowerCase();
+
+ // Skip attributes already provided by e.g. Draco extension.
+ if ( threeAttributeName in geometry.attributes ) continue;
+
+ pending.push( assignAttributeAccessor( attributes[ gltfAttributeName ], threeAttributeName ) );
+
+ }
+
+ if ( primitiveDef.indices !== undefined && ! geometry.index ) {
+
+ var accessor = parser.getDependency( 'accessor', primitiveDef.indices ).then( function ( accessor ) {
+
+ geometry.setIndex( accessor );
+
+ } );
+
+ pending.push( accessor );
+
+ }
+
+ assignExtrasToUserData( geometry, primitiveDef );
+
+ computeBounds( geometry, primitiveDef, parser );
+
+ return Promise.all( pending ).then( function () {
+
+ return primitiveDef.targets !== undefined
+ ? addMorphTargets( geometry, primitiveDef.targets, parser )
+ : geometry;
+
+ } );
+
+ }
+
+ /**
+ * @param {THREE.BufferGeometry} geometry
+ * @param {Number} drawMode
+ * @return {THREE.BufferGeometry}
+ */
+ function toTrianglesDrawMode( geometry, drawMode ) {
+
+ var index = geometry.getIndex();
+
+ // generate index if not present
+
+ if ( index === null ) {
+
+ var indices = [];
+
+ var position = geometry.getAttribute( 'position' );
+
+ if ( position !== undefined ) {
+
+ for ( var i = 0; i < position.count; i ++ ) {
+
+ indices.push( i );
+
+ }
+
+ geometry.setIndex( indices );
+ index = geometry.getIndex();
+
+ } else {
+
+ console.error( 'THREE.GLTFLoader.toTrianglesDrawMode(): Undefined position attribute. Processing not possible.' );
+ return geometry;
+
+ }
+
+ }
+
+ //
+
+ var numberOfTriangles = index.count - 2;
+ var newIndices = [];
+
+ if ( drawMode === THREE.TriangleFanDrawMode ) {
+
+ // gl.TRIANGLE_FAN
+
+ for ( var i = 1; i <= numberOfTriangles; i ++ ) {
+
+ newIndices.push( index.getX( 0 ) );
+ newIndices.push( index.getX( i ) );
+ newIndices.push( index.getX( i + 1 ) );
+
+ }
+
+ } else {
+
+ // gl.TRIANGLE_STRIP
+
+ for ( var i = 0; i < numberOfTriangles; i ++ ) {
+
+ if ( i % 2 === 0 ) {
+
+ newIndices.push( index.getX( i ) );
+ newIndices.push( index.getX( i + 1 ) );
+ newIndices.push( index.getX( i + 2 ) );
+
+
+ } else {
+
+ newIndices.push( index.getX( i + 2 ) );
+ newIndices.push( index.getX( i + 1 ) );
+ newIndices.push( index.getX( i ) );
+
+ }
+
+ }
+
+ }
+
+ if ( ( newIndices.length / 3 ) !== numberOfTriangles ) {
+
+ console.error( 'THREE.GLTFLoader.toTrianglesDrawMode(): Unable to generate correct amount of triangles.' );
+
+ }
+
+ // build final geometry
+
+ var newGeometry = geometry.clone();
+ newGeometry.setIndex( newIndices );
+
+ return newGeometry;
+
+ }
+
+ /**
+ * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry
+ *
+ * Creates BufferGeometries from primitives.
+ *
+ * @param {Array<GLTF.Primitive>} primitives
+ * @return {Promise<Array<THREE.BufferGeometry>>}
+ */
+ GLTFParser.prototype.loadGeometries = function ( primitives ) {
+
+ var parser = this;
+ var extensions = this.extensions;
+ var cache = this.primitiveCache;
+
+ function createDracoPrimitive( primitive ) {
+
+ return extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ]
+ .decodePrimitive( primitive, parser )
+ .then( function ( geometry ) {
+
+ return addPrimitiveAttributes( geometry, primitive, parser );
+
+ } );
+
+ }
+
+ var pending = [];
+
+ for ( var i = 0, il = primitives.length; i < il; i ++ ) {
+
+ var primitive = primitives[ i ];
+ var cacheKey = createPrimitiveKey( primitive );
+
+ // See if we've already created this geometry
+ var cached = cache[ cacheKey ];
+
+ if ( cached ) {
+
+ // Use the cached geometry if it exists
+ pending.push( cached.promise );
+
+ } else {
+
+ var geometryPromise;
+
+ if ( primitive.extensions && primitive.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ] ) {
+
+ // Use DRACO geometry if available
+ geometryPromise = createDracoPrimitive( primitive );
+
+ } else {
+
+ // Otherwise create a new geometry
+ geometryPromise = addPrimitiveAttributes( new THREE.BufferGeometry(), primitive, parser );
+
+ }
+
+ // Cache this geometry
+ cache[ cacheKey ] = { primitive: primitive, promise: geometryPromise };
+
+ pending.push( geometryPromise );
+
+ }
+
+ }
+
+ return Promise.all( pending );
+
+ };
+
+ /**
+ * 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 parser = this;
+ var json = this.json;
+ var extensions = this.extensions;
+
+ var meshDef = json.meshes[ meshIndex ];
+ var primitives = meshDef.primitives;
+
+ var pending = [];
+
+ for ( var i = 0, il = primitives.length; i < il; i ++ ) {
+
+ var material = primitives[ i ].material === undefined
+ ? createDefaultMaterial( this.cache )
+ : this.getDependency( 'material', primitives[ i ].material );
+
+ pending.push( material );
+
+ }
+
+ pending.push( parser.loadGeometries( primitives ) );
+
+ return Promise.all( pending ).then( function ( results ) {
+
+ var materials = results.slice( 0, results.length - 1 );
+ var geometries = results[ results.length - 1 ];
+
+ 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 = materials[ 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 ( mesh.isSkinnedMesh === true && ! mesh.geometry.attributes.skinWeight.normalized ) {
+
+ // we normalize floating point skin weight array to fix malformed assets (see #15319)
+ // it's important to skip this for non-float32 data since normalizeSkinWeights assumes non-normalized inputs
+ mesh.normalizeSkinWeights();
+
+ }
+
+ if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ) {
+
+ mesh.geometry = toTrianglesDrawMode( mesh.geometry, THREE.TriangleStripDrawMode );
+
+ } else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) {
+
+ mesh.geometry = toTrianglesDrawMode( mesh.geometry, 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 = parser.createUniqueName( meshDef.name || ( 'mesh_' + meshIndex ) );
+
+ assignExtrasToUserData( mesh, meshDef );
+
+ if ( primitive.extensions ) addUnknownExtensionsToUserData( extensions, mesh, primitive );
+
+ parser.assignFinalMaterial( mesh );
+
+ meshes.push( mesh );
+
+ }
+
+ 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.MathUtils.radToDeg( params.yfov ), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6 );
+
+ } else if ( cameraDef.type === 'orthographic' ) {
+
+ camera = new THREE.OrthographicCamera( - params.xmag, params.xmag, params.ymag, - params.ymag, params.znear, params.zfar );
+
+ }
+
+ if ( cameraDef.name ) camera.name = this.createUniqueName( 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 ];
+
+ var pendingNodes = [];
+ var pendingInputAccessors = [];
+ var pendingOutputAccessors = [];
+ var pendingSamplers = [];
+ var pendingTargets = [];
+
+ for ( var i = 0, il = animationDef.channels.length; i < il; i ++ ) {
+
+ var channel = animationDef.channels[ i ];
+ var sampler = animationDef.samplers[ channel.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;
+
+ pendingNodes.push( this.getDependency( 'node', name ) );
+ pendingInputAccessors.push( this.getDependency( 'accessor', input ) );
+ pendingOutputAccessors.push( this.getDependency( 'accessor', output ) );
+ pendingSamplers.push( sampler );
+ pendingTargets.push( target );
+
+ }
+
+ return Promise.all( [
+
+ Promise.all( pendingNodes ),
+ Promise.all( pendingInputAccessors ),
+ Promise.all( pendingOutputAccessors ),
+ Promise.all( pendingSamplers ),
+ Promise.all( pendingTargets )
+
+ ] ).then( function ( dependencies ) {
+
+ var nodes = dependencies[ 0 ];
+ var inputAccessors = dependencies[ 1 ];
+ var outputAccessors = dependencies[ 2 ];
+ var samplers = dependencies[ 3 ];
+ var targets = dependencies[ 4 ];
+
+ var tracks = [];
+
+ for ( var i = 0, il = nodes.length; i < il; i ++ ) {
+
+ var node = nodes[ i ];
+ var inputAccessor = inputAccessors[ i ];
+ var outputAccessor = outputAccessors[ i ];
+ var sampler = samplers[ i ];
+ var target = targets[ i ];
+
+ if ( node === undefined ) continue;
+
+ 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 may be a THREE.Group (glTF mesh with several primitives) or a THREE.Mesh.
+ node.traverse( function ( object ) {
+
+ if ( object.isMesh === true && object.morphTargetInfluences ) {
+
+ targetNames.push( object.name ? object.name : object.uuid );
+
+ }
+
+ } );
+
+ } else {
+
+ targetNames.push( targetName );
+
+ }
+
+ var outputArray = outputAccessor.array;
+
+ if ( outputAccessor.normalized ) {
+
+ var scale;
+
+ if ( outputArray.constructor === Int8Array ) {
+
+ scale = 1 / 127;
+
+ } else if ( outputArray.constructor === Uint8Array ) {
+
+ scale = 1 / 255;
+
+ } else if ( outputArray.constructor == Int16Array ) {
+
+ scale = 1 / 32767;
+
+ } else if ( outputArray.constructor === Uint16Array ) {
+
+ scale = 1 / 65535;
+
+ } else {
+
+ throw new Error( 'THREE.GLTFLoader: Unsupported output accessor component type.' );
+
+ }
+
+ var scaled = new Float32Array( outputArray.length );
+
+ for ( var j = 0, jl = outputArray.length; j < jl; j ++ ) {
+
+ scaled[ j ] = outputArray[ j ] * scale;
+
+ }
+
+ outputArray = scaled;
+
+ }
+
+ for ( var j = 0, jl = targetNames.length; j < jl; j ++ ) {
+
+ var track = new TypedKeyframeTrack(
+ targetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ],
+ inputAccessor.array,
+ outputArray,
+ interpolation
+ );
+
+ // Override interpolation with custom factory method.
+ 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 );
+
+ };
+
+ // Mark as CUBICSPLINE. `track.getInterpolation()` doesn't support custom interpolants.
+ track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true;
+
+ }
+
+ tracks.push( track );
+
+ }
+
+ }
+
+ var name = animationDef.name ? 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 parser = this;
+
+ var nodeDef = json.nodes[ nodeIndex ];
+
+ // reserve node's name before its dependencies, so the root has the intended name.
+ var nodeName = nodeDef.name ? parser.createUniqueName( nodeDef.name ) : '';
+
+ return ( function () {
+
+ var pending = [];
+
+ if ( nodeDef.mesh !== undefined ) {
+
+ pending.push( parser.getDependency( 'mesh', nodeDef.mesh ).then( function ( mesh ) {
+
+ var node = parser._getNodeRef( parser.meshCache, nodeDef.mesh, mesh );
+
+ // if weights are provided on the node, override weights on the mesh.
+ if ( nodeDef.weights !== undefined ) {
+
+ node.traverse( function ( o ) {
+
+ if ( ! o.isMesh ) return;
+
+ for ( var i = 0, il = nodeDef.weights.length; i < il; i ++ ) {
+
+ o.morphTargetInfluences[ i ] = nodeDef.weights[ i ];
+
+ }
+
+ } );
+
+ }
+
+ return node;
+
+ } ) );
+
+ }
+
+ if ( nodeDef.camera !== undefined ) {
+
+ pending.push( parser.getDependency( 'camera', nodeDef.camera ).then( function ( camera ) {
+
+ return parser._getNodeRef( parser.cameraCache, nodeDef.camera, camera );
+
+ } ) );
+
+ }
+
+ parser._invokeAll( function ( ext ) {
+
+ return ext.createNodeAttachment && ext.createNodeAttachment( nodeIndex );
+
+ } ).forEach( function ( promise ) {
+
+ pending.push( promise );
+
+ } );
+
+ return Promise.all( pending );
+
+ }() ).then( function ( objects ) {
+
+ var node;
+
+ // .isBone isn't in glTF spec. See ._markDefs
+ if ( nodeDef.isBone === true ) {
+
+ node = new THREE.Bone();
+
+ } else if ( objects.length > 1 ) {
+
+ node = new THREE.Group();
+
+ } else if ( objects.length === 1 ) {
+
+ node = objects[ 0 ];
+
+ } else {
+
+ node = new THREE.Object3D();
+
+ }
+
+ if ( node !== objects[ 0 ] ) {
+
+ for ( var i = 0, il = objects.length; i < il; i ++ ) {
+
+ node.add( objects[ i ] );
+
+ }
+
+ }
+
+ if ( nodeDef.name ) {
+
+ node.userData.name = nodeDef.name;
+ node.name = nodeName;
+
+ }
+
+ assignExtrasToUserData( node, nodeDef );
+
+ if ( nodeDef.extensions ) addUnknownExtensionsToUserData( extensions, node, nodeDef );
+
+ if ( nodeDef.matrix !== undefined ) {
+
+ var matrix = new THREE.Matrix4();
+ matrix.fromArray( nodeDef.matrix );
+ node.applyMatrix4( 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 );
+
+ }
+
+ }
+
+ parser.associations.set( node, { type: 'nodes', index: nodeIndex } );
+
+ return node;
+
+ } );
+
+ };
+
+ /**
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
+ * @param {number} sceneIndex
+ * @return {Promise<THREE.Group>}
+ */
+ GLTFParser.prototype.loadScene = function () {
+
+ // scene node hierachy builder
+
+ function buildNodeHierachy( nodeId, parentObject, json, parser ) {
+
+ var nodeDef = json.nodes[ nodeId ];
+
+ return parser.getDependency( 'node', nodeId ).then( function ( node ) {
+
+ if ( nodeDef.skin === undefined ) return node;
+
+ // build skeleton here as well
+
+ var skinEntry;
+
+ return parser.getDependency( 'skin', nodeDef.skin ).then( function ( skin ) {
+
+ skinEntry = skin;
+
+ var pendingJoints = [];
+
+ for ( var i = 0, il = skinEntry.joints.length; i < il; i ++ ) {
+
+ pendingJoints.push( parser.getDependency( 'node', skinEntry.joints[ i ] ) );
+
+ }
+
+ return Promise.all( pendingJoints );
+
+ } ).then( function ( jointNodes ) {
+
+ node.traverse( function ( mesh ) {
+
+ if ( ! mesh.isMesh ) return;
+
+ var bones = [];
+ var boneInverses = [];
+
+ for ( var j = 0, jl = jointNodes.length; j < jl; j ++ ) {
+
+ var jointNode = jointNodes[ j ];
+
+ 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.', skinEntry.joints[ j ] );
+
+ }
+
+ }
+
+ mesh.bind( new THREE.Skeleton( bones, boneInverses ), mesh.matrixWorld );
+
+ } );
+
+ return node;
+
+ } );
+
+ } ).then( function ( node ) {
+
+ // build node hierachy
+
+ parentObject.add( node );
+
+ var pending = [];
+
+ if ( nodeDef.children ) {
+
+ var children = nodeDef.children;
+
+ for ( var i = 0, il = children.length; i < il; i ++ ) {
+
+ var child = children[ i ];
+ pending.push( buildNodeHierachy( child, node, json, parser ) );
+
+ }
+
+ }
+
+ return Promise.all( pending );
+
+ } );
+
+ }
+
+ return function loadScene( sceneIndex ) {
+
+ var json = this.json;
+ var extensions = this.extensions;
+ var sceneDef = this.json.scenes[ sceneIndex ];
+ var parser = this;
+
+ // Loader returns Group, not Scene.
+ // See: https://github.com/mrdoob/three.js/issues/18342#issuecomment-578981172
+ var scene = new THREE.Group();
+ if ( sceneDef.name ) scene.name = parser.createUniqueName( sceneDef.name );
+
+ assignExtrasToUserData( scene, sceneDef );
+
+ if ( sceneDef.extensions ) addUnknownExtensionsToUserData( extensions, scene, sceneDef );
+
+ var nodeIds = sceneDef.nodes || [];
+
+ var pending = [];
+
+ for ( var i = 0, il = nodeIds.length; i < il; i ++ ) {
+
+ pending.push( buildNodeHierachy( nodeIds[ i ], scene, json, parser ) );
+
+ }
+
+ return Promise.all( pending ).then( function () {
+
+ return scene;
+
+ } );
+
+ };
+
+ }();
+
+ return GLTFLoader;
+
+} )();
\ No newline at end of file
--
Gitblit v1.7.1