| /** |
| * Copyright 2019 the three.js authors |
| * SPDX-License-Identifier: MIT |
| */ |
| |
| /** |
| * @author Rich Tibbett / https://github.com/richtr |
| * @author mrdoob / http://mrdoob.com/ |
| * @author Tony Parisi / http://www.tonyparisi.com/ |
| * @author Takahiro / https://github.com/takahirox |
| * @author Don McCurdy / https://www.donmccurdy.com |
| */ |
| |
| /** |
| * A modified version of THREE.GLTFLoader, with support for the (hypothetical) |
| * GOOGLE_texture_basis extension. This extension is defined for the sake of |
| * example only – the glTF format will officially reference Basis files within |
| * a KTX2 wrapper. |
| */ |
| THREE.GLTFLoader = ( function () { |
| |
| function GLTFLoader( manager ) { |
| |
| this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager; |
| this.dracoLoader = null; |
| |
| } |
| |
| GLTFLoader.prototype = { |
| |
| constructor: GLTFLoader, |
| |
| crossOrigin: 'anonymous', |
| |
| load: function ( url, onLoad, onProgress, onError ) { |
| |
| var scope = this; |
| |
| var resourcePath; |
| |
| if ( this.resourcePath !== undefined ) { |
| |
| resourcePath = this.resourcePath; |
| |
| } else if ( this.path !== undefined ) { |
| |
| 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. |
| scope.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( scope.manager ); |
| |
| loader.setPath( this.path ); |
| loader.setResponseType( 'arraybuffer' ); |
| |
| 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 ); |
| |
| }, |
| |
| setCrossOrigin: function ( value ) { |
| |
| this.crossOrigin = value; |
| return this; |
| |
| }, |
| |
| setPath: function ( value ) { |
| |
| this.path = value; |
| return this; |
| |
| }, |
| |
| setResourcePath: function ( value ) { |
| |
| this.resourcePath = value; |
| return this; |
| |
| }, |
| |
| setDRACOLoader: function ( dracoLoader ) { |
| |
| this.dracoLoader = dracoLoader; |
| return this; |
| |
| }, |
| |
| parse: function ( data, path, onLoad, onError ) { |
| |
| var content; |
| var extensions = {}; |
| |
| 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. Use LegacyGLTFLoader instead.' ) ); |
| return; |
| |
| } |
| |
| 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_LIGHTS_PUNCTUAL: |
| extensions[ extensionName ] = new GLTFLightsExtension( json ); |
| break; |
| |
| case EXTENSIONS.KHR_MATERIALS_UNLIT: |
| extensions[ extensionName ] = new GLTFMaterialsUnlitExtension( json ); |
| break; |
| |
| case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: |
| extensions[ extensionName ] = new GLTFMaterialsPbrSpecularGlossinessExtension( json ); |
| break; |
| |
| case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION: |
| extensions[ extensionName ] = new GLTFDracoMeshCompressionExtension( json, this.dracoLoader ); |
| break; |
| |
| case EXTENSIONS.MSFT_TEXTURE_DDS: |
| extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] = new GLTFTextureDDSExtension(); |
| break; |
| |
| case EXTENSIONS.GOOGLE_TEXTURE_BASIS: |
| extensions[ EXTENSIONS.GOOGLE_TEXTURE_BASIS ] = new GLTFTextureBasisExtension(); |
| break; |
| |
| case EXTENSIONS.KHR_TEXTURE_TRANSFORM: |
| extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] = new GLTFTextureTransformExtension( json ); |
| break; |
| |
| default: |
| |
| if ( extensionsRequired.indexOf( extensionName ) >= 0 ) { |
| |
| console.warn( 'THREE.GLTFLoader: Unknown extension "' + extensionName + '".' ); |
| |
| } |
| |
| } |
| |
| } |
| |
| } |
| |
| var parser = new GLTFParser( json, extensions, { |
| |
| path: path || this.resourcePath || '', |
| crossOrigin: this.crossOrigin, |
| manager: this.manager |
| |
| } ); |
| |
| 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_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness', |
| KHR_MATERIALS_UNLIT: 'KHR_materials_unlit', |
| KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform', |
| MSFT_TEXTURE_DDS: 'MSFT_texture_dds', |
| GOOGLE_TEXTURE_BASIS: 'GOOGLE_texture_basis' |
| }; |
| |
| /** |
| * DDS Texture Extension |
| * |
| * Specification: |
| * https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/MSFT_texture_dds |
| * |
| */ |
| function GLTFTextureDDSExtension() { |
| |
| if ( ! THREE.DDSLoader ) { |
| |
| throw new Error( 'THREE.GLTFLoader: Attempting to load .dds texture without importing THREE.DDSLoader' ); |
| |
| } |
| |
| this.name = EXTENSIONS.MSFT_TEXTURE_DDS; |
| this.ddsLoader = new THREE.DDSLoader(); |
| |
| } |
| |
| /** |
| * Basis Texture Extension |
| * |
| */ |
| function GLTFTextureBasisExtension() { |
| |
| this.name = EXTENSIONS.GOOGLE_TEXTURE_BASIS; |
| |
| } |
| |
| /** |
| * Lights Extension |
| * |
| * Specification: PENDING |
| */ |
| function GLTFLightsExtension( json ) { |
| |
| this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL; |
| |
| var extension = ( json.extensions && json.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ] ) || {}; |
| this.lightDefs = extension.lights || []; |
| |
| } |
| |
| GLTFLightsExtension.prototype.loadLight = function ( lightIndex ) { |
| |
| var lightDef = this.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 = lightDef.name || ( 'light_' + lightIndex ); |
| |
| return Promise.resolve( lightNode ); |
| |
| }; |
| |
| /** |
| * Unlit Materials Extension (pending) |
| * |
| * PR: https://github.com/KhronosGroup/glTF/pull/1163 |
| */ |
| 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 ); |
| |
| }; |
| |
| /* BINARY EXTENSION */ |
| |
| var BINARY_EXTENSION_BUFFER_NAME = 'binary_glTF'; |
| 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. Use LegacyGLTFLoader instead.' ); |
| |
| } |
| |
| 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 = 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/pull/874 |
| */ |
| 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; |
| |
| } |
| |
| 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: |
| */ |
| 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 |
| */ |
| function GLTFMaterialsPbrSpecularGlossinessExtension() { |
| |
| return { |
| |
| name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS, |
| |
| specularGlossinessParams: [ |
| 'color', |
| 'map', |
| 'lightMap', |
| 'lightMapIntensity', |
| 'aoMap', |
| 'aoMapIntensity', |
| 'emissive', |
| 'emissiveIntensity', |
| 'emissiveMap', |
| 'bumpMap', |
| 'bumpScale', |
| 'normalMap', |
| 'displacementMap', |
| 'displacementScale', |
| 'displacementBias', |
| 'specularMap', |
| 'specular', |
| 'glossinessMap', |
| 'glossiness', |
| 'alphaMap', |
| 'envMap', |
| 'envMapIntensity', |
| 'refractionRatio', |
| ], |
| |
| getMaterialType: function () { |
| |
| return THREE.ShaderMaterial; |
| |
| }, |
| |
| extendParams: function ( materialParams, materialDef, parser ) { |
| |
| var pbrSpecularGlossiness = materialDef.extensions[ this.name ]; |
| |
| var shader = THREE.ShaderLib[ 'standard' ]; |
| |
| var uniforms = THREE.UniformsUtils.clone( shader.uniforms ); |
| |
| 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;', |
| 'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );', |
| 'material.specularColor = specularFactor.rgb;', |
| ].join( '\n' ); |
| |
| var 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 ); |
| |
| delete uniforms.roughness; |
| delete uniforms.metalness; |
| delete uniforms.roughnessMap; |
| delete uniforms.metalnessMap; |
| |
| uniforms.specular = { value: new THREE.Color().setHex( 0x111111 ) }; |
| uniforms.glossiness = { value: 0.5 }; |
| uniforms.specularMap = { value: null }; |
| uniforms.glossinessMap = { value: null }; |
| |
| materialParams.vertexShader = shader.vertexShader; |
| materialParams.fragmentShader = fragmentShader; |
| materialParams.uniforms = uniforms; |
| materialParams.defines = { 'STANDARD': '' }; |
| |
| 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 ( params ) { |
| |
| // setup material properties based on MeshStandardMaterial for Specular-Glossiness |
| |
| var material = new THREE.ShaderMaterial( { |
| defines: params.defines, |
| vertexShader: params.vertexShader, |
| fragmentShader: params.fragmentShader, |
| uniforms: params.uniforms, |
| fog: true, |
| lights: true, |
| opacity: params.opacity, |
| transparent: params.transparent |
| } ); |
| |
| material.isGLTFSpecularGlossinessMaterial = true; |
| |
| material.color = params.color; |
| |
| material.map = params.map === undefined ? null : params.map; |
| |
| material.lightMap = null; |
| material.lightMapIntensity = 1.0; |
| |
| material.aoMap = params.aoMap === undefined ? null : params.aoMap; |
| material.aoMapIntensity = 1.0; |
| |
| material.emissive = params.emissive; |
| material.emissiveIntensity = 1.0; |
| material.emissiveMap = params.emissiveMap === undefined ? null : params.emissiveMap; |
| |
| material.bumpMap = params.bumpMap === undefined ? null : params.bumpMap; |
| material.bumpScale = 1; |
| |
| material.normalMap = params.normalMap === undefined ? null : params.normalMap; |
| |
| if ( params.normalScale ) material.normalScale = params.normalScale; |
| |
| material.displacementMap = null; |
| material.displacementScale = 1; |
| material.displacementBias = 0; |
| |
| material.specularMap = params.specularMap === undefined ? null : params.specularMap; |
| material.specular = params.specular; |
| |
| material.glossinessMap = params.glossinessMap === undefined ? null : params.glossinessMap; |
| material.glossiness = params.glossiness; |
| |
| material.alphaMap = null; |
| |
| material.envMap = params.envMap === undefined ? null : params.envMap; |
| material.envMapIntensity = 1.0; |
| |
| material.refractionRatio = 0.98; |
| |
| material.extensions.derivatives = true; |
| |
| return material; |
| |
| }, |
| |
| /** |
| * Clones a GLTFSpecularGlossinessMaterial instance. The ShaderMaterial.copy() method can |
| * copy only properties it knows about or inherits, and misses many properties that would |
| * normally be defined by MeshStandardMaterial. |
| * |
| * This method allows GLTFSpecularGlossinessMaterials to be cloned in the process of |
| * loading a glTF model, but cloning later (e.g. by the user) would require these changes |
| * AND also updating `.onBeforeRender` on the parent mesh. |
| * |
| * @param {THREE.ShaderMaterial} source |
| * @return {THREE.ShaderMaterial} |
| */ |
| cloneMaterial: function ( source ) { |
| |
| var target = source.clone(); |
| |
| target.isGLTFSpecularGlossinessMaterial = true; |
| |
| var params = this.specularGlossinessParams; |
| |
| for ( var i = 0, il = params.length; i < il; i ++ ) { |
| |
| target[ params[ i ] ] = source[ params[ i ] ]; |
| |
| } |
| |
| return target; |
| |
| }, |
| |
| // Here's based on refreshUniformsCommon() and refreshUniformsStandard() in WebGLRenderer. |
| refreshUniforms: function ( renderer, scene, camera, geometry, material, group ) { |
| |
| if ( material.isGLTFSpecularGlossinessMaterial !== true ) { |
| |
| return; |
| |
| } |
| |
| var uniforms = material.uniforms; |
| var defines = material.defines; |
| |
| uniforms.opacity.value = material.opacity; |
| |
| uniforms.diffuse.value.copy( material.color ); |
| uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity ); |
| |
| uniforms.map.value = material.map; |
| uniforms.specularMap.value = material.specularMap; |
| uniforms.alphaMap.value = material.alphaMap; |
| |
| uniforms.lightMap.value = material.lightMap; |
| uniforms.lightMapIntensity.value = material.lightMapIntensity; |
| |
| uniforms.aoMap.value = material.aoMap; |
| uniforms.aoMapIntensity.value = material.aoMapIntensity; |
| |
| // uv repeat and offset setting priorities |
| // 1. color map |
| // 2. specular map |
| // 3. normal map |
| // 4. bump map |
| // 5. alpha map |
| // 6. emissive map |
| |
| var uvScaleMap; |
| |
| if ( material.map ) { |
| |
| uvScaleMap = material.map; |
| |
| } else if ( material.specularMap ) { |
| |
| uvScaleMap = material.specularMap; |
| |
| } else if ( material.displacementMap ) { |
| |
| uvScaleMap = material.displacementMap; |
| |
| } else if ( material.normalMap ) { |
| |
| uvScaleMap = material.normalMap; |
| |
| } else if ( material.bumpMap ) { |
| |
| uvScaleMap = material.bumpMap; |
| |
| } else if ( material.glossinessMap ) { |
| |
| uvScaleMap = material.glossinessMap; |
| |
| } else if ( material.alphaMap ) { |
| |
| uvScaleMap = material.alphaMap; |
| |
| } else if ( material.emissiveMap ) { |
| |
| uvScaleMap = material.emissiveMap; |
| |
| } |
| |
| if ( uvScaleMap !== undefined ) { |
| |
| // backwards compatibility |
| if ( uvScaleMap.isWebGLRenderTarget ) { |
| |
| uvScaleMap = uvScaleMap.texture; |
| |
| } |
| |
| if ( uvScaleMap.matrixAutoUpdate === true ) { |
| |
| uvScaleMap.updateMatrix(); |
| |
| } |
| |
| uniforms.uvTransform.value.copy( uvScaleMap.matrix ); |
| |
| } |
| |
| if ( material.envMap ) { |
| |
| uniforms.envMap.value = material.envMap; |
| uniforms.envMapIntensity.value = material.envMapIntensity; |
| |
| // don't flip CubeTexture envMaps, flip everything else: |
| // WebGLRenderTargetCube will be flipped for backwards compatibility |
| // WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture |
| // this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future |
| uniforms.flipEnvMap.value = material.envMap.isCubeTexture ? - 1 : 1; |
| |
| uniforms.reflectivity.value = material.reflectivity; |
| uniforms.refractionRatio.value = material.refractionRatio; |
| |
| uniforms.maxMipLevel.value = renderer.properties.get( material.envMap ).__maxMipLevel; |
| |
| } |
| |
| uniforms.specular.value.copy( material.specular ); |
| uniforms.glossiness.value = material.glossiness; |
| |
| uniforms.glossinessMap.value = material.glossinessMap; |
| |
| uniforms.emissiveMap.value = material.emissiveMap; |
| uniforms.bumpMap.value = material.bumpMap; |
| uniforms.normalMap.value = material.normalMap; |
| |
| uniforms.displacementMap.value = material.displacementMap; |
| uniforms.displacementScale.value = material.displacementScale; |
| uniforms.displacementBias.value = material.displacementBias; |
| |
| if ( uniforms.glossinessMap.value !== null && defines.USE_GLOSSINESSMAP === undefined ) { |
| |
| defines.USE_GLOSSINESSMAP = ''; |
| // set USE_ROUGHNESSMAP to enable vUv |
| defines.USE_ROUGHNESSMAP = ''; |
| |
| } |
| |
| if ( uniforms.glossinessMap.value === null && defines.USE_GLOSSINESSMAP !== undefined ) { |
| |
| delete defines.USE_GLOSSINESSMAP; |
| delete defines.USE_ROUGHNESSMAP; |
| |
| } |
| |
| } |
| |
| }; |
| |
| } |
| |
| /*********************************/ |
| /********** 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_TYPE = { |
| 5126: Number, |
| //35674: THREE.Matrix2, |
| 35675: THREE.Matrix3, |
| 35676: THREE.Matrix4, |
| 35664: THREE.Vector2, |
| 35665: THREE.Vector3, |
| 35666: THREE.Vector4, |
| 35678: THREE.Texture |
| }; |
| |
| 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_SIDES = { |
| 1028: THREE.BackSide, // Culling front |
| 1029: THREE.FrontSide // Culling back |
| //1032: THREE.NoSide // Culling front and back, what to do? |
| }; |
| |
| var WEBGL_DEPTH_FUNCS = { |
| 512: THREE.NeverDepth, |
| 513: THREE.LessDepth, |
| 514: THREE.EqualDepth, |
| 515: THREE.LessEqualDepth, |
| 516: THREE.GreaterEqualDepth, |
| 517: THREE.NotEqualDepth, |
| 518: THREE.GreaterEqualDepth, |
| 519: THREE.AlwaysDepth |
| }; |
| |
| var WEBGL_BLEND_EQUATIONS = { |
| 32774: THREE.AddEquation, |
| 32778: THREE.SubtractEquation, |
| 32779: THREE.ReverseSubtractEquation |
| }; |
| |
| var WEBGL_BLEND_FUNCS = { |
| 0: THREE.ZeroFactor, |
| 1: THREE.OneFactor, |
| 768: THREE.SrcColorFactor, |
| 769: THREE.OneMinusSrcColorFactor, |
| 770: THREE.SrcAlphaFactor, |
| 771: THREE.OneMinusSrcAlphaFactor, |
| 772: THREE.DstAlphaFactor, |
| 773: THREE.OneMinusDstAlphaFactor, |
| 774: THREE.DstColorFactor, |
| 775: THREE.OneMinusDstColorFactor, |
| 776: THREE.SrcAlphaSaturateFactor |
| // The followings are not supported by Three.js yet |
| //32769: CONSTANT_COLOR, |
| //32770: ONE_MINUS_CONSTANT_COLOR, |
| //32771: CONSTANT_ALPHA, |
| //32772: ONE_MINUS_CONSTANT_COLOR |
| }; |
| |
| 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 STATES_ENABLES = { |
| 2884: 'CULL_FACE', |
| 2929: 'DEPTH_TEST', |
| 3042: 'BLEND', |
| 3089: 'SCISSOR_TEST', |
| 32823: 'POLYGON_OFFSET_FILL', |
| 32926: 'SAMPLE_ALPHA_TO_COVERAGE' |
| }; |
| |
| var ALPHA_MODES = { |
| OPAQUE: 'OPAQUE', |
| MASK: 'MASK', |
| BLEND: 'BLEND' |
| }; |
| |
| var MIME_TYPE_FORMATS = { |
| 'image/png': THREE.RGBAFormat, |
| 'image/jpeg': THREE.RGBFormat |
| }; |
| |
| /* UTILITY FUNCTIONS */ |
| |
| function resolveURL( url, path ) { |
| |
| // Invalid URL |
| if ( typeof url !== 'string' || url === '' ) return ''; |
| |
| // 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; |
| |
| } |
| |
| var defaultMaterial; |
| |
| /** |
| * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material |
| */ |
| function createDefaultMaterial() { |
| |
| defaultMaterial = defaultMaterial || new THREE.MeshStandardMaterial( { |
| color: 0xFFFFFF, |
| emissive: 0x000000, |
| metalness: 1, |
| roughness: 1, |
| transparent: false, |
| depthTest: true, |
| side: THREE.FrontSide |
| } ); |
| |
| return 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.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 ]; |
| |
| // Clone morph target accessors before modifying them. |
| |
| for ( var i = 0, il = morphPositions.length; i < il; i ++ ) { |
| |
| if ( geometry.attributes.position === morphPositions[ i ] ) continue; |
| |
| morphPositions[ i ] = cloneBufferAttribute( morphPositions[ i ] ); |
| |
| } |
| |
| for ( var i = 0, il = morphNormals.length; i < il; i ++ ) { |
| |
| if ( geometry.attributes.normal === morphNormals[ i ] ) continue; |
| |
| morphNormals[ i ] = cloneBufferAttribute( morphNormals[ i ] ); |
| |
| } |
| |
| for ( var i = 0, il = targets.length; i < il; i ++ ) { |
| |
| var target = targets[ i ]; |
| var attributeName = 'morphTarget' + i; |
| |
| if ( hasMorphPosition ) { |
| |
| // Three.js morph position is absolute value. The formula is |
| // basePosition |
| // + weight0 * ( morphPosition0 - basePosition ) |
| // + weight1 * ( morphPosition1 - basePosition ) |
| // ... |
| // while the glTF one is relative |
| // basePosition |
| // + weight0 * glTFmorphPosition0 |
| // + weight1 * glTFmorphPosition1 |
| // ... |
| // then we need to convert from relative to absolute here. |
| |
| if ( target.POSITION !== undefined ) { |
| |
| var positionAttribute = morphPositions[ i ]; |
| positionAttribute.name = attributeName; |
| |
| var position = geometry.attributes.position; |
| |
| for ( var j = 0, jl = positionAttribute.count; j < jl; j ++ ) { |
| |
| positionAttribute.setXYZ( |
| j, |
| positionAttribute.getX( j ) + position.getX( j ), |
| positionAttribute.getY( j ) + position.getY( j ), |
| positionAttribute.getZ( j ) + position.getZ( j ) |
| ); |
| |
| } |
| |
| } |
| |
| } |
| |
| if ( hasMorphNormal ) { |
| |
| // see target.POSITION's comment |
| |
| if ( target.NORMAL !== undefined ) { |
| |
| var normalAttribute = morphNormals[ i ]; |
| normalAttribute.name = attributeName; |
| |
| var normal = geometry.attributes.normal; |
| |
| for ( var j = 0, jl = normalAttribute.count; j < jl; j ++ ) { |
| |
| normalAttribute.setXYZ( |
| j, |
| normalAttribute.getX( j ) + normal.getX( j ), |
| normalAttribute.getY( j ) + normal.getY( j ), |
| normalAttribute.getZ( j ) + normal.getZ( j ) |
| ); |
| |
| } |
| |
| } |
| |
| } |
| |
| } |
| |
| if ( hasMorphPosition ) geometry.morphAttributes.position = morphPositions; |
| if ( hasMorphNormal ) geometry.morphAttributes.normal = morphNormals; |
| |
| 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 isObjectEqual( a, b ) { |
| |
| if ( Object.keys( a ).length !== Object.keys( b ).length ) return false; |
| |
| for ( var key in a ) { |
| |
| if ( a[ key ] !== b[ key ] ) return false; |
| |
| } |
| |
| return true; |
| |
| } |
| |
| 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; |
| |
| } |
| |
| function cloneBufferAttribute( attribute ) { |
| |
| if ( attribute.isInterleavedBufferAttribute ) { |
| |
| var count = attribute.count; |
| var itemSize = attribute.itemSize; |
| var array = attribute.array.slice( 0, count * itemSize ); |
| |
| for ( var i = 0, j = 0; i < count; ++ i ) { |
| |
| array[ j ++ ] = attribute.getX( i ); |
| if ( itemSize >= 2 ) array[ j ++ ] = attribute.getY( i ); |
| if ( itemSize >= 3 ) array[ j ++ ] = attribute.getZ( i ); |
| if ( itemSize >= 4 ) array[ j ++ ] = attribute.getW( i ); |
| |
| } |
| |
| return new THREE.BufferAttribute( array, itemSize, attribute.normalized ); |
| |
| } |
| |
| return attribute.clone(); |
| |
| } |
| |
| /* GLTF PARSER */ |
| |
| function GLTFParser( json, extensions, options ) { |
| |
| this.json = json || {}; |
| this.extensions = extensions || {}; |
| this.options = options || {}; |
| |
| // loader object cache |
| this.cache = new GLTFRegistry(); |
| |
| // BufferGeometry caching |
| this.primitiveCache = {}; |
| |
| this.textureLoader = new THREE.TextureLoader( this.options.manager ); |
| this.textureLoader.setCrossOrigin( this.options.crossOrigin ); |
| |
| this.fileLoader = new THREE.FileLoader( this.options.manager ); |
| this.fileLoader.setResponseType( 'arraybuffer' ); |
| |
| } |
| |
| 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.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 ); |
| |
| 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 || []; |
| |
| var meshReferences = {}; |
| var meshUses = {}; |
| |
| // 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; |
| |
| } |
| |
| } |
| |
| // Meshes can (and should) be reused by multiple nodes in a glTF asset. To |
| // avoid having more than one THREE.Mesh with the same name, count |
| // references and rename instances below. |
| // |
| // Example: CesiumMilkTruck sample model reuses "Wheel" meshes. |
| for ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) { |
| |
| var nodeDef = nodeDefs[ nodeIndex ]; |
| |
| if ( nodeDef.mesh !== undefined ) { |
| |
| if ( meshReferences[ nodeDef.mesh ] === undefined ) { |
| |
| meshReferences[ nodeDef.mesh ] = meshUses[ nodeDef.mesh ] = 0; |
| |
| } |
| |
| meshReferences[ 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; |
| |
| } |
| |
| } |
| |
| } |
| |
| this.json.meshReferences = meshReferences; |
| this.json.meshUses = meshUses; |
| |
| }; |
| |
| /** |
| * 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.loadMesh( index ); |
| break; |
| |
| case 'accessor': |
| dependency = this.loadAccessor( index ); |
| break; |
| |
| case 'bufferView': |
| dependency = this.loadBufferView( index ); |
| break; |
| |
| case 'buffer': |
| dependency = this.loadBuffer( index ); |
| break; |
| |
| case 'material': |
| dependency = this.loadMaterial( index ); |
| break; |
| |
| case 'texture': |
| dependency = this.loadTexture( index ); |
| break; |
| |
| case 'skin': |
| dependency = this.loadSkin( index ); |
| break; |
| |
| case 'animation': |
| dependency = this.loadAnimation( index ); |
| break; |
| |
| case 'camera': |
| dependency = this.loadCamera( index ); |
| break; |
| |
| case 'light': |
| dependency = this.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].loadLight( 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 ) { |
| |
| var ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType; |
| var ib = parser.cache.get( ibCacheKey ); |
| |
| if ( ! ib ) { |
| |
| // Use the full buffer if it's interleaved. |
| array = new TypedArray( bufferView ); |
| |
| // 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 / 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.setArray( bufferAttribute.array.slice() ); |
| |
| } |
| |
| 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 parser = this; |
| var json = this.json; |
| var options = this.options; |
| var textureLoader = this.textureLoader; |
| |
| var URL = window.URL || window.webkitURL; |
| |
| 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 if ( textureExtensions[ EXTENSIONS.GOOGLE_TEXTURE_BASIS ] ) { |
| |
| source = json.images[ textureExtensions[ EXTENSIONS.GOOGLE_TEXTURE_BASIS ].source ]; |
| |
| } else { |
| |
| source = json.images[ textureDef.source ]; |
| |
| } |
| |
| var sourceURI = source.uri; |
| var isObjectURL = false; |
| |
| if ( source.bufferView !== undefined ) { |
| |
| // Load binary image data from bufferView, if provided. |
| |
| sourceURI = parser.getDependency( 'bufferView', source.bufferView ).then( function ( bufferView ) { |
| |
| isObjectURL = true; |
| var blob = new Blob( [ bufferView ], { type: source.mimeType } ); |
| sourceURI = URL.createObjectURL( blob ); |
| return sourceURI; |
| |
| } ); |
| |
| } |
| |
| return Promise.resolve( sourceURI ).then( function ( sourceURI ) { |
| |
| // Load Texture resource. |
| |
| var loader = THREE.Loader.Handlers.get( sourceURI ); |
| |
| if ( ! loader ) { |
| |
| loader = textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] |
| ? parser.extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].ddsLoader |
| : textureLoader; |
| |
| } |
| |
| return new Promise( function ( resolve, reject ) { |
| |
| loader.load( resolveURL( sourceURI, options.path ), resolve, undefined, reject ); |
| |
| } ); |
| |
| } ).then( function ( texture ) { |
| |
| // Clean up resources and configure Texture. |
| |
| if ( isObjectURL === true ) { |
| |
| URL.revokeObjectURL( sourceURI ); |
| |
| } |
| |
| texture.flipY = false; |
| |
| if ( textureDef.name !== undefined ) texture.name = textureDef.name; |
| |
| // Ignore unknown mime types, like DDS files. |
| if ( source.mimeType in MIME_TYPE_FORMATS ) { |
| |
| texture.format = MIME_TYPE_FORMATS[ source.mimeType ]; |
| |
| } |
| |
| 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; |
| |
| 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 ) { |
| |
| if ( ! texture.isCompressedTexture ) { |
| |
| switch ( mapName ) { |
| |
| case 'aoMap': |
| case 'emissiveMap': |
| case 'metalnessMap': |
| case 'normalMap': |
| case 'roughnessMap': |
| texture.format = THREE.RGBFormat; |
| break; |
| |
| } |
| |
| } |
| |
| if ( parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] ) { |
| |
| var transform = mapDef.extensions !== undefined ? mapDef.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] : undefined; |
| |
| if ( transform ) { |
| |
| texture = parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ].extendTexture( texture, transform ); |
| |
| } |
| |
| } |
| |
| 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 {THREE.Object3D} mesh Mesh, Line, or Points instance. |
| */ |
| GLTFParser.prototype.assignFinalMaterial = function ( mesh ) { |
| |
| var geometry = mesh.geometry; |
| var material = mesh.material; |
| var extensions = this.extensions; |
| |
| 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.lights = false; // PointsMaterial doesn't support lights yet |
| |
| 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 ); |
| lineMaterial.lights = false; // LineBasicMaterial doesn't support lights yet |
| |
| 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.isGLTFSpecularGlossinessMaterial |
| ? extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].cloneMaterial( material ) |
| : material.clone(); |
| |
| if ( useSkinning ) cachedMaterial.skinning = true; |
| if ( useVertexTangents ) cachedMaterial.vertexTangents = true; |
| if ( useVertexColors ) cachedMaterial.vertexColors = THREE.VertexColors; |
| if ( useFlatShading ) cachedMaterial.flatShading = true; |
| if ( useMorphTargets ) cachedMaterial.morphTargets = true; |
| if ( useMorphNormals ) cachedMaterial.morphNormals = true; |
| |
| this.cache.add( cacheKey, cachedMaterial ); |
| |
| } |
| |
| material = cachedMaterial; |
| |
| } |
| |
| // workarounds for mesh and geometry |
| |
| if ( material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined ) { |
| |
| console.log( 'THREE.GLTFLoader: Duplicating UVs to support aoMap.' ); |
| geometry.addAttribute( 'uv2', new THREE.BufferAttribute( geometry.attributes.uv.array, 2 ) ); |
| |
| } |
| |
| if ( material.isGLTFSpecularGlossinessMaterial ) { |
| |
| // for GLTFSpecularGlossinessMaterial(ShaderMaterial) uniforms runtime update |
| mesh.onBeforeRender = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].refreshUniforms; |
| |
| } |
| |
| mesh.material = material; |
| |
| }; |
| |
| /** |
| * 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 |
| |
| materialType = THREE.MeshStandardMaterial; |
| |
| 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 ) ); |
| |
| } |
| |
| } |
| |
| if ( materialDef.doubleSided === true ) { |
| |
| materialParams.side = THREE.DoubleSide; |
| |
| } |
| |
| var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE; |
| |
| if ( alphaMode === ALPHA_MODES.BLEND ) { |
| |
| materialParams.transparent = true; |
| |
| } 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 ) ); |
| |
| 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 === THREE.ShaderMaterial ) { |
| |
| material = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams ); |
| |
| } else { |
| |
| material = new materialType( materialParams ); |
| |
| } |
| |
| if ( materialDef.name !== undefined ) 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; |
| if ( material.specularMap ) material.specularMap.encoding = THREE.sRGBEncoding; |
| |
| assignExtrasToUserData( material, materialDef ); |
| |
| if ( materialDef.extensions ) addUnknownExtensionsToUserData( extensions, material, materialDef ); |
| |
| return material; |
| |
| } ); |
| |
| }; |
| |
| /** |
| * @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.addAttribute( 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 ); |
| |
| return Promise.all( pending ).then( function () { |
| |
| return primitiveDef.targets !== undefined |
| ? addMorphTargets( geometry, primitiveDef.targets, parser ) |
| : geometry; |
| |
| } ); |
| |
| } |
| |
| /** |
| * 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.getDependency( 'material', primitives[ i ].material ); |
| |
| pending.push( material ); |
| |
| } |
| |
| return Promise.all( pending ).then( function ( originalMaterials ) { |
| |
| return parser.loadGeometries( primitives ).then( function ( geometries ) { |
| |
| 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 = originalMaterials[ 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.normalizeSkinWeights(); // #15319 |
| |
| if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ) { |
| |
| mesh.drawMode = THREE.TriangleStripDrawMode; |
| |
| } else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) { |
| |
| mesh.drawMode = 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 = 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 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.Math.radToDeg( params.yfov ), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6 ); |
| |
| } else if ( cameraDef.type === 'orthographic' ) { |
| |
| camera = new THREE.OrthographicCamera( params.xmag / - 2, params.xmag / 2, params.ymag / 2, params.ymag / - 2, params.znear, params.zfar ); |
| |
| } |
| |
| if ( cameraDef.name !== undefined ) camera.name = 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 ); |
| |
| } |
| |
| for ( var j = 0, jl = targetNames.length; j < jl; j ++ ) { |
| |
| var track = new TypedKeyframeTrack( |
| targetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ], |
| inputAccessor.array, |
| outputAccessor.array, |
| 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 !== undefined ? 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 meshReferences = json.meshReferences; |
| var meshUses = json.meshUses; |
| |
| var nodeDef = json.nodes[ nodeIndex ]; |
| |
| return ( function () { |
| |
| // .isBone isn't in glTF spec. See .markDefs |
| if ( nodeDef.isBone === true ) { |
| |
| return Promise.resolve( new THREE.Bone() ); |
| |
| } else if ( nodeDef.mesh !== undefined ) { |
| |
| return parser.getDependency( 'mesh', nodeDef.mesh ).then( function ( mesh ) { |
| |
| var node; |
| |
| if ( meshReferences[ nodeDef.mesh ] > 1 ) { |
| |
| var instanceNum = meshUses[ nodeDef.mesh ] ++; |
| |
| node = mesh.clone(); |
| node.name += '_instance_' + instanceNum; |
| |
| // onBeforeRender copy for Specular-Glossiness |
| node.onBeforeRender = mesh.onBeforeRender; |
| |
| for ( var i = 0, il = node.children.length; i < il; i ++ ) { |
| |
| node.children[ i ].name += '_instance_' + instanceNum; |
| node.children[ i ].onBeforeRender = mesh.children[ i ].onBeforeRender; |
| |
| } |
| |
| } else { |
| |
| node = 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; |
| |
| } ); |
| |
| } else if ( nodeDef.camera !== undefined ) { |
| |
| return parser.getDependency( 'camera', nodeDef.camera ); |
| |
| } else if ( nodeDef.extensions |
| && nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ] |
| && nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light !== undefined ) { |
| |
| return parser.getDependency( 'light', nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light ); |
| |
| } else { |
| |
| return Promise.resolve( new THREE.Object3D() ); |
| |
| } |
| |
| }() ).then( function ( node ) { |
| |
| if ( nodeDef.name !== undefined ) { |
| |
| node.name = THREE.PropertyBinding.sanitizeNodeName( nodeDef.name ); |
| |
| } |
| |
| assignExtrasToUserData( node, nodeDef ); |
| |
| if ( nodeDef.extensions ) addUnknownExtensionsToUserData( extensions, node, nodeDef ); |
| |
| if ( nodeDef.matrix !== undefined ) { |
| |
| var matrix = new THREE.Matrix4(); |
| matrix.fromArray( nodeDef.matrix ); |
| node.applyMatrix( 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 ); |
| |
| } |
| |
| } |
| |
| return node; |
| |
| } ); |
| |
| }; |
| |
| /** |
| * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes |
| * @param {number} sceneIndex |
| * @return {Promise<THREE.Scene>} |
| */ |
| 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 ) { |
| |
| var meshes = node.isGroup === true ? node.children : [ node ]; |
| |
| for ( var i = 0, il = meshes.length; i < il; i ++ ) { |
| |
| var mesh = meshes[ i ]; |
| |
| 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; |
| |
| var scene = new THREE.Scene(); |
| if ( sceneDef.name !== undefined ) scene.name = 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; |
| |
| } )(); |