import { AnimationClip, Bone, Box3, BufferAttribute, BufferGeometry, CanvasTexture, ClampToEdgeWrapping, Color, DirectionalLight, DoubleSide, FileLoader, FrontSide, Group, ImageBitmapLoader, InterleavedBuffer, InterleavedBufferAttribute, Interpolant, InterpolateDiscrete, InterpolateLinear, Line, LineBasicMaterial, LineLoop, LineSegments, LinearFilter, LinearMipmapLinearFilter, LinearMipmapNearestFilter, Loader, LoaderUtils, Material, MathUtils, Matrix4, Mesh, MeshBasicMaterial, MeshPhysicalMaterial, MeshStandardMaterial, MirroredRepeatWrapping, NearestFilter, NearestMipmapLinearFilter, NearestMipmapNearestFilter, NumberKeyframeTrack, Object3D, OrthographicCamera, PerspectiveCamera, PointLight, Points, PointsMaterial, PropertyBinding, QuaternionKeyframeTrack, RGBFormat, RepeatWrapping, Skeleton, SkinnedMesh, Sphere, SpotLight, TangentSpaceNormalMap, TextureLoader, TriangleFanDrawMode, TriangleStripDrawMode, Vector2, Vector3, VectorKeyframeTrack, sRGBEncoding } from "./js/three/build/three.module.js"; var GLTFLoader = ( function () { function GLTFLoader( manager ) { Loader.call( this, manager ); this.dracoLoader = null; this.ddsLoader = null; this.ktx2Loader = 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 GLTFMaterialsTransmissionExtension( parser ); } ); this.register( function ( parser ) { return new GLTFLightsExtension( parser ); } ); } GLTFLoader.prototype = Object.assign( Object.create( 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 = 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 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 ( ddsLoader ) { this.ddsLoader = ddsLoader; return this; }, setKTX2Loader: function ( ktx2Loader ) { this.ktx2Loader = ktx2Loader; 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 = 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 = 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, manager: this.manager, ktx2Loader: this.ktx2Loader } ); 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.MSFT_TEXTURE_DDS: extensions[ extensionName ] = new GLTFTextureDDSExtension( this.ddsLoader ); 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', MSFT_TEXTURE_DDS: 'MSFT_texture_dds' }; /** * DDS Texture Extension * * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/MSFT_texture_dds * */ function GLTFTextureDDSExtension( ddsLoader ) { if ( ! ddsLoader ) { throw new Error( 'THREE.GLTFLoader: Attempting to load .dds texture without importing DDSLoader' ); } this.name = EXTENSIONS.MSFT_TEXTURE_DDS; this.ddsLoader = ddsLoader; } /** * 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 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 DirectionalLight( color ); lightNode.target.position.set( 0, 0, - 1 ); lightNode.add( lightNode.target ); break; case 'point': lightNode = new PointLight( color ); lightNode.distance = range; break; case 'spot': lightNode = new 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 MeshBasicMaterial; }; GLTFMaterialsUnlitExtension.prototype.extendParams = function ( materialParams, materialDef, parser ) { var pending = []; materialParams.color = new 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 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; materialParams.clearcoatNormalScale = new 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 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 * (draft PR https://github.com/KhronosGroup/glTF/pull/1751) */ 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 ) { throw new Error( 'THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures' ); } return parser.loadTextureImage( textureIndex, source, loader ); }; /* 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: 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 chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH ); var chunkIndex = 0; while ( chunkIndex < chunkView.byteLength ) { 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 = 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 StandardMaterial with some of the functionality * changed via the `onBeforeCompile` callback * @pailhead */ function GLTFMeshStandardSGMaterial( params ) { 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 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 ', specularMapParsFragmentChunk ) .replace( '#include ', glossinessMapParsFragmentChunk ) .replace( '#include ', specularMapFragmentChunk ) .replace( '#include ', glossinessMapFragmentChunk ) .replace( '#include ', 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( MeshStandardMaterial.prototype ); GLTFMeshStandardSGMaterial.prototype.constructor = GLTFMeshStandardSGMaterial; GLTFMeshStandardSGMaterial.prototype.copy = function ( source ) { 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 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 Color( 0.0, 0.0, 0.0 ); materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0; materialParams.specular = new 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 = 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 ) { Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer ); } GLTFCubicSplineInterpolant.prototype = Object.create( 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: NearestFilter, 9729: LinearFilter, 9984: NearestMipmapNearestFilter, 9985: LinearMipmapNearestFilter, 9986: NearestMipmapLinearFilter, 9987: LinearMipmapLinearFilter }; var WEBGL_WRAPPINGS = { 33071: ClampToEdgeWrapping, 33648: MirroredRepeatWrapping, 10497: 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: InterpolateLinear, STEP: 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 MeshStandardMaterial( { color: 0xFFFFFF, emissive: 0x000000, metalness: 1, roughness: 1, transparent: false, depthTest: true, side: 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 {Object3D|Material|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 {BufferGeometry} geometry * @param {Array} targets * @param {GLTFParser} parser * @return {Promise} */ 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 {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 ImageBitmapLoader( this.options.manager ); } else { this.textureLoader = new TextureLoader( this.options.manager ); } this.textureLoader.setCrossOrigin( this.options.crossOrigin ); this.fileLoader = new 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.getDependencies( 'scene' ), this.getDependencies( 'animation' ), this.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 ); 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} */ 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>} */ 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} */ 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} */ 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} */ 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 InterleavedBuffer( array, byteStride / elementBytes ); parser.cache.add( ibCacheKey, ib ); } bufferAttribute = new 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 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 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} */ GLTFParser.prototype.loadTexture = function ( textureIndex ) { var parser = this; var json = this.json; var options = this.options; var textureDef = json.textures[ textureIndex ]; var textureExtensions = textureDef.extensions || {}; var source; if ( textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] ) { source = json.images[ textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].source ]; } else { source = json.images[ textureDef.source ]; } var loader; if ( source.uri ) { loader = options.manager.getHandler( source.uri ); } if ( ! loader ) { loader = textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] ? parser.extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].ddsLoader : this.textureLoader; } 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; } ); } 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 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 = RGBFormat; var samplers = json.samplers || {}; var sampler = samplers[ textureDef.sampler ] || {}; texture.magFilter = WEBGL_FILTERS[ sampler.magFilter ] || LinearFilter; texture.minFilter = WEBGL_FILTERS[ sampler.minFilter ] || LinearMipmapLinearFilter; texture.wrapS = WEBGL_WRAPPINGS[ sampler.wrapS ] || RepeatWrapping; texture.wrapT = WEBGL_WRAPPINGS[ sampler.wrapT ] || 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 accomodate different primitive types, defines, etc. New materials will * be created if necessary, and reused from a cache. * @param {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 PointsMaterial(); 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 LineBasicMaterial(); 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 ( useVertexTangents ) cachedMaterial.vertexTangents = true; if ( useVertexColors ) cachedMaterial.vertexColors = true; if ( useFlatShading ) cachedMaterial.flatShading = true; if ( useMorphTargets ) cachedMaterial.morphTargets = true; if ( useMorphNormals ) cachedMaterial.morphNormals = true; 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 ); } // https://github.com/mrdoob/three.js/issues/11438#issuecomment-507003995 if ( material.normalScale && ! useVertexTangents ) { material.normalScale.y = - material.normalScale.y; } if ( material.clearcoatNormalScale && ! useVertexTangents ) { material.clearcoatNormalScale.y = - material.clearcoatNormalScale.y; } mesh.material = material; }; GLTFParser.prototype.getMaterialType = function ( /* materialIndex */ ) { return MeshStandardMaterial; }; /** * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials * @param {number} materialIndex * @return {Promise} */ 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 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 = 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 !== MeshBasicMaterial ) { pending.push( parser.assignTexture( materialParams, 'normalMap', materialDef.normalTexture ) ); materialParams.normalScale = new Vector2( 1, 1 ); if ( materialDef.normalTexture.scale !== undefined ) { materialParams.normalScale.set( materialDef.normalTexture.scale, materialDef.normalTexture.scale ); } } if ( materialDef.occlusionTexture !== undefined && materialType !== MeshBasicMaterial ) { pending.push( parser.assignTexture( materialParams, 'aoMap', materialDef.occlusionTexture ) ); if ( materialDef.occlusionTexture.strength !== undefined ) { materialParams.aoMapIntensity = materialDef.occlusionTexture.strength; } } if ( materialDef.emissiveFactor !== undefined && materialType !== MeshBasicMaterial ) { materialParams.emissive = new Color().fromArray( materialDef.emissiveFactor ); } if ( materialDef.emissiveTexture !== undefined && materialType !== 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 = sRGBEncoding; if ( material.emissiveMap ) material.emissiveMap.encoding = 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 name = PropertyBinding.sanitizeNodeName( originalName || '' ); for ( var i = 1; this.nodeNamesUsed[ name ]; ++ i ) { name = originalName + '_' + i; } this.nodeNamesUsed[ name ] = true; return name; }; /** * @param {BufferGeometry} geometry * @param {GLTF.Primitive} primitiveDef * @param {GLTFParser} parser */ function computeBounds( geometry, primitiveDef, parser ) { var attributes = primitiveDef.attributes; var box = new 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 Vector3( min[ 0 ], min[ 1 ], min[ 2 ] ), new 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 Vector3(); var vector = new 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 Sphere(); box.getCenter( sphere.center ); sphere.radius = box.min.distanceTo( box.max ) / 2; geometry.boundingSphere = sphere; } /** * @param {BufferGeometry} geometry * @param {GLTF.Primitive} primitiveDef * @param {GLTFParser} parser * @return {Promise} */ 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 {BufferGeometry} geometry * @param {Number} drawMode * @return {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 === 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} primitives * @return {Promise>} */ 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 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} */ GLTFParser.prototype.loadMesh = function ( meshIndex ) { var parser = this; var json = this.json; 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 SkinnedMesh( geometry, material ) : new 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, TriangleStripDrawMode ); } else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) { mesh.geometry = toTrianglesDrawMode( mesh.geometry, TriangleFanDrawMode ); } } else if ( primitive.mode === WEBGL_CONSTANTS.LINES ) { mesh = new LineSegments( geometry, material ); } else if ( primitive.mode === WEBGL_CONSTANTS.LINE_STRIP ) { mesh = new Line( geometry, material ); } else if ( primitive.mode === WEBGL_CONSTANTS.LINE_LOOP ) { mesh = new LineLoop( geometry, material ); } else if ( primitive.mode === WEBGL_CONSTANTS.POINTS ) { mesh = new 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 ) ); if ( geometries.length > 1 ) mesh.name += '_' + i; assignExtrasToUserData( mesh, meshDef ); parser.assignFinalMaterial( mesh ); meshes.push( mesh ); } if ( meshes.length === 1 ) { return meshes[ 0 ]; } var group = new 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} */ 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 PerspectiveCamera( MathUtils.radToDeg( params.yfov ), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6 ); } else if ( cameraDef.type === 'orthographic' ) { camera = new 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} */ 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} */ 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 = NumberKeyframeTrack; break; case PATH_PROPERTIES.rotation: TypedKeyframeTrack = QuaternionKeyframeTrack; break; case PATH_PROPERTIES.position: case PATH_PROPERTIES.scale: default: TypedKeyframeTrack = VectorKeyframeTrack; break; } var targetName = node.name ? node.name : node.uuid; var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : InterpolateLinear; var targetNames = []; if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) { // Node may be a Group (glTF mesh with several primitives) or a 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 AnimationClip( name, undefined, tracks ); } ); }; /** * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy * @param {number} nodeIndex * @return {Promise} */ 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 Bone(); } else if ( objects.length > 1 ) { node = new Group(); } else if ( objects.length === 1 ) { node = objects[ 0 ]; } else { node = new 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 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} */ 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 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 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 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; } )(); export { GLTFLoader };