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/* eslint-disable */
import * as THREE from 'three'
/**
* @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
*/
function GLTFLoader( manager ) {
this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
}
GLTFLoader.prototype = {
constructor: GLTFLoader,
crossOrigin: 'Anonymous',
load: function ( url, onLoad, onProgress, onError ) {
var scope = this;
var path = this.path && ( typeof this.path === 'string' ) ? this.path : THREE.Loader.prototype.extractUrlBase( url );
var loader = new THREE.FileLoader( scope.manager );
loader.setResponseType( 'arraybuffer' );
loader.load( url, function ( data ) {
try {
scope.parse( data, path, onLoad, onError );
} catch ( e ) {
// For SyntaxError or TypeError, return a generic failure message.
onError( e.constructor === Error ? e : new Error( 'THREE.GLTFLoader: Unable to parse model.' ) );
}
}, onProgress, onError );
},
setCrossOrigin: function ( value ) {
this.crossOrigin = value;
},
setPath: function ( value ) {
this.path = value;
},
parse: function ( data, path, onLoad, onError ) {
var content;
var extensions = {};
var magic = convertUint8ArrayToString( new Uint8Array( data, 0, 4 ) );
if ( magic === BINARY_EXTENSION_HEADER_MAGIC ) {
extensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data );
content = extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content;
} else {
content = convertUint8ArrayToString( new Uint8Array( data ) );
}
var json = JSON.parse( content );
if ( json.asset === undefined || json.asset.version[ 0 ] < 2 ) {
onError( new Error( 'THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported.' ) );
return;
}
if ( json.extensionsUsed ) {
if( json.extensionsUsed.indexOf( EXTENSIONS.KHR_LIGHTS ) >= 0 ) {
extensions[ EXTENSIONS.KHR_LIGHTS ] = new GLTFLightsExtension( json );
}
if( json.extensionsUsed.indexOf( EXTENSIONS.KHR_MATERIALS_COMMON ) >= 0 ) {
extensions[ EXTENSIONS.KHR_MATERIALS_COMMON ] = new GLTFMaterialsCommonExtension( json );
}
if( json.extensionsUsed.indexOf( EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ) >= 0 ) {
extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] = new GLTFMaterialsPbrSpecularGlossinessExtension();
}
}
console.time( 'GLTFLoader' );
var parser = new GLTFParser( json, extensions, {
path: path || this.path,
crossOrigin: this.crossOrigin
} );
parser.parse( function ( scene, scenes, cameras, animations ) {
console.timeEnd( 'GLTFLoader' );
var glTF = {
scene: scene,
scenes: scenes,
cameras: cameras,
animations: animations
};
onLoad( glTF );
}, 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 = {};
},
update: function ( scene, camera ) {
for ( var name in objects ) {
var object = objects[ name ];
if ( object.update ) {
object.update( scene, camera );
}
}
}
};
}
/*********************************/
/********** EXTENSIONS ***********/
/*********************************/
var EXTENSIONS = {
KHR_BINARY_GLTF: 'KHR_binary_glTF',
KHR_LIGHTS: 'KHR_lights',
KHR_MATERIALS_COMMON: 'KHR_materials_common',
KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness'
};
/**
* Lights Extension
*
* Specification: PENDING
*/
function GLTFLightsExtension( json ) {
this.name = EXTENSIONS.KHR_LIGHTS;
this.lights = {};
var extension = ( json.extensions && json.extensions[ EXTENSIONS.KHR_LIGHTS ] ) || {};
var lights = extension.lights || {};
for ( var lightId in lights ) {
var light = lights[ lightId ];
var lightNode;
var color = new THREE.Color().fromArray( light.color );
switch ( light.type ) {
case 'directional':
lightNode = new THREE.DirectionalLight( color );
lightNode.position.set( 0, 0, 1 );
break;
case 'point':
lightNode = new THREE.PointLight( color );
break;
case 'spot':
lightNode = new THREE.SpotLight( color );
lightNode.position.set( 0, 0, 1 );
break;
case 'ambient':
lightNode = new THREE.AmbientLight( color );
break;
}
if ( lightNode ) {
if ( light.constantAttenuation !== undefined ) {
lightNode.intensity = light.constantAttenuation;
}
if ( light.linearAttenuation !== undefined ) {
lightNode.distance = 1 / light.linearAttenuation;
}
if ( light.quadraticAttenuation !== undefined ) {
lightNode.decay = light.quadraticAttenuation;
}
if ( light.fallOffAngle !== undefined ) {
lightNode.angle = light.fallOffAngle;
}
if ( light.fallOffExponent !== undefined ) {
console.warn( 'THREE.GLTFLoader:: light.fallOffExponent not currently supported.' );
}
lightNode.name = light.name || ( 'light_' + lightId );
this.lights[ lightId ] = lightNode;
}
}
}
/**
* Common Materials Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/Khronos/KHR_materials_common
*/
function GLTFMaterialsCommonExtension( json ) {
this.name = EXTENSIONS.KHR_MATERIALS_COMMON;
}
GLTFMaterialsCommonExtension.prototype.getMaterialType = function ( material ) {
var khrMaterial = material.extensions[ this.name ];
switch ( khrMaterial.type ) {
case 'commonBlinn' :
case 'commonPhong' :
return THREE.MeshPhongMaterial;
case 'commonLambert' :
return THREE.MeshLambertMaterial;
case 'commonConstant' :
default :
return THREE.MeshBasicMaterial;
}
};
GLTFMaterialsCommonExtension.prototype.extendParams = function ( materialParams, material, parser ) {
var khrMaterial = material.extensions[ this.name ];
var pending = [];
var keys = [];
// TODO: Currently ignored: 'ambientFactor', 'ambientTexture'
switch ( khrMaterial.type ) {
case 'commonBlinn' :
case 'commonPhong' :
keys.push( 'diffuseFactor', 'diffuseTexture', 'specularFactor', 'specularTexture', 'shininessFactor' );
break;
case 'commonLambert' :
keys.push( 'diffuseFactor', 'diffuseTexture' );
break;
case 'commonConstant' :
default :
break;
}
var materialValues = {};
keys.forEach( function( v ) {
if ( khrMaterial[ v ] !== undefined ) materialValues[ v ] = khrMaterial[ v ];
} );
if ( materialValues.diffuseFactor !== undefined ) {
materialParams.color = new THREE.Color().fromArray( materialValues.diffuseFactor );
materialParams.opacity = materialValues.diffuseFactor[ 3 ];
}
if ( materialValues.diffuseTexture !== undefined ) {
pending.push( parser.assignTexture( materialParams, 'map', materialValues.diffuseTexture.index ) );
}
if ( materialValues.specularFactor !== undefined ) {
materialParams.specular = new THREE.Color().fromArray( materialValues.specularFactor );
}
if ( materialValues.specularTexture !== undefined ) {
pending.push( parser.assignTexture( materialParams, 'specularMap', materialValues.specularTexture.index ) );
}
if ( materialValues.shininessFactor !== undefined ) {
materialParams.shininess = materialValues.shininessFactor;
}
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: convertUint8ArrayToString( 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 GLTFLoader 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 = convertUint8ArrayToString( 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.' );
}
}
/**
* Specular-Glossiness Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/Khronos/KHR_materials_pbrSpecularGlossiness
*/
function GLTFMaterialsPbrSpecularGlossinessExtension() {
return {
name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,
getMaterialType: function () {
return THREE.ShaderMaterial;
},
extendParams: function ( params, material, parser ) {
var pbrSpecularGlossiness = material.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 );',
' // 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( '#include <specularmap_fragment>', '' )
.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 };
params.vertexShader = shader.vertexShader;
params.fragmentShader = fragmentShader;
params.uniforms = uniforms;
params.defines = { 'STANDARD': '' };
params.color = new THREE.Color( 1.0, 1.0, 1.0 );
params.opacity = 1.0;
var pending = [];
if ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) {
var array = pbrSpecularGlossiness.diffuseFactor;
params.color.fromArray( array );
params.opacity = array[ 3 ];
}
if ( pbrSpecularGlossiness.diffuseTexture !== undefined ) {
pending.push( parser.assignTexture( params, 'map', pbrSpecularGlossiness.diffuseTexture.index ) );
}
params.emissive = new THREE.Color( 0.0, 0.0, 0.0 );
params.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
params.specular = new THREE.Color( 1.0, 1.0, 1.0 );
if ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) {
params.specular.fromArray( pbrSpecularGlossiness.specularFactor );
}
if ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) {
var specGlossIndex = pbrSpecularGlossiness.specularGlossinessTexture.index;
pending.push( parser.assignTexture( params, 'glossinessMap', specGlossIndex ) );
pending.push( parser.assignTexture( params, 'specularMap', specGlossIndex ) );
}
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;
material.normalScale = new THREE.Vector2( 1, 1 );
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;
},
// Here's based on refreshUniformsCommon() and refreshUniformsStandard() in WebGLRenderer.
refreshUniforms: function ( renderer, scene, camera, geometry, material, group ) {
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;
}
var offset = uvScaleMap.offset;
var repeat = uvScaleMap.repeat;
uniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y );
}
uniforms.envMap.value = material.envMap;
uniforms.envMapIntensity.value = material.envMapIntensity;
uniforms.flipEnvMap.value = ( material.envMap && material.envMap.isCubeTexture ) ? -1 : 1;
uniforms.refractionRatio.value = material.refractionRatio;
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;
}
}
};
}
/*********************************/
/********** 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_TEXTURE_FORMATS = {
6406: THREE.AlphaFormat,
6407: THREE.RGBFormat,
6408: THREE.RGBAFormat,
6409: THREE.LuminanceFormat,
6410: THREE.LuminanceAlphaFormat
};
var WEBGL_TEXTURE_DATATYPES = {
5121: THREE.UnsignedByteType,
32819: THREE.UnsignedShort4444Type,
32820: THREE.UnsignedShort5551Type,
33635: THREE.UnsignedShort565Type
};
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 PATH_PROPERTIES = {
scale: 'scale',
translation: 'position',
rotation: 'quaternion',
weights: 'morphTargetInfluences'
};
var INTERPOLATION = {
CATMULLROMSPLINE: THREE.InterpolateSmooth,
CUBICSPLINE: THREE.InterpolateSmooth,
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'
};
/* UTILITY FUNCTIONS */
function _each( object, callback, thisObj ) {
if ( !object ) {
return Promise.resolve();
}
var results;
var fns = [];
if ( Object.prototype.toString.call( object ) === '[object Array]' ) {
results = [];
var length = object.length;
for ( var idx = 0; idx < length; idx ++ ) {
var value = callback.call( thisObj || this, object[ idx ], idx );
if ( value ) {
fns.push( value );
if ( value instanceof Promise ) {
value.then( function( key, value ) {
results[ key ] = value;
}.bind( this, idx ));
} else {
results[ idx ] = value;
}
}
}
} else {
results = {};
for ( var key in object ) {
if ( object.hasOwnProperty( key ) ) {
var value = callback.call( thisObj || this, object[ key ], key );
if ( value ) {
fns.push( value );
if ( value instanceof Promise ) {
value.then( function( key, value ) {
results[ key ] = value;
}.bind( this, key ));
} else {
results[ key ] = value;
}
}
}
}
}
return Promise.all( fns ).then( function() {
return results;
});
}
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;
}
function convertUint8ArrayToString( array ) {
if ( window.TextDecoder !== undefined ) {
return new TextDecoder().decode( array );
}
// Avoid the String.fromCharCode.apply(null, array) shortcut, which
// throws a "maximum call stack size exceeded" error for large arrays.
var s = '';
for ( var i = 0, il = array.length; i < il; i ++ ) {
s += String.fromCharCode( array[ i ] );
}
return s;
}
/**
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material
*/
function createDefaultMaterial() {
return new THREE.MeshStandardMaterial( {
color: 0xFFFFFF,
emissive: 0x000000,
metalness: 1,
roughness: 1,
transparent: false,
depthTest: true,
side: THREE.FrontSide
} );
}
/**
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#morph-targets
* @param {THREE.Mesh} mesh
* @param {GLTF.Mesh} meshDef
* @param {GLTF.Primitive} primitiveDef
* @param {Object} dependencies
*/
function addMorphTargets ( mesh, meshDef, primitiveDef, dependencies ) {
var geometry = mesh.geometry;
var material = mesh.material;
var targets = primitiveDef.targets;
var morphAttributes = geometry.morphAttributes;
morphAttributes.position = [];
morphAttributes.normal = [];
material.morphTargets = true;
for ( var i = 0, il = targets.length; i < il; i ++ ) {
var target = targets[ i ];
var attributeName = 'morphTarget' + i;
var positionAttribute, normalAttribute;
if ( target.POSITION !== undefined ) {
// Three.js morph formula is
// position
// + weight0 * ( morphTarget0 - position )
// + weight1 * ( morphTarget1 - position )
// ...
// while the glTF one is
// position
// + weight0 * morphTarget0
// + weight1 * morphTarget1
// ...
// then adding position to morphTarget.
// So morphTarget value will depend on mesh's position, then cloning attribute
// for the case if attribute is shared among two or more meshes.
positionAttribute = dependencies.accessors[ target.POSITION ].clone();
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 )
);
}
} else {
// Copying the original position not to affect the final position.
// See the formula above.
positionAttribute = geometry.attributes.position.clone();
}
if ( target.NORMAL !== undefined ) {
material.morphNormals = true;
// see target.POSITION's comment
normalAttribute = dependencies.accessors[ target.NORMAL ].clone();
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 )
);
}
} else {
normalAttribute = geometry.attributes.normal.clone();
}
if ( target.TANGENT !== undefined ) {
// TODO: implement
}
positionAttribute.name = attributeName;
normalAttribute.name = attributeName;
morphAttributes.position.push( positionAttribute );
morphAttributes.normal.push( normalAttribute );
}
mesh.updateMorphTargets();
if ( meshDef.weights !== undefined ) {
for ( var i = 0, il = meshDef.weights.length; i < il; i ++ ) {
mesh.morphTargetInfluences[ i ] = meshDef.weights[ i ];
}
}
}
/* GLTF PARSER */
function GLTFParser( json, extensions, options ) {
this.json = json || {};
this.extensions = extensions || {};
this.options = options || {};
// loader object cache
this.cache = new GLTFRegistry();
}
GLTFParser.prototype._withDependencies = function ( dependencies ) {
var _dependencies = {};
for ( var i = 0; i < dependencies.length; i ++ ) {
var dependency = dependencies[ i ];
var fnName = 'load' + dependency.charAt( 0 ).toUpperCase() + dependency.slice( 1 );
var cached = this.cache.get( dependency );
if ( cached !== undefined ) {
_dependencies[ dependency ] = cached;
} else if ( this[ fnName ] ) {
var fn = this[ fnName ]();
this.cache.add( dependency, fn );
_dependencies[ dependency ] = fn;
}
}
return _each( _dependencies, function ( dependency ) {
return dependency;
} );
};
GLTFParser.prototype.parse = function ( onLoad, onError ) {
var json = this.json;
// Clear the loader cache
this.cache.removeAll();
// Fire the callback on complete
this._withDependencies( [
'scenes',
'cameras',
'animations'
] ).then( function ( dependencies ) {
var scenes = [];
for ( var name in dependencies.scenes ) {
scenes.push( dependencies.scenes[ name ] );
}
var scene = json.scene !== undefined ? dependencies.scenes[ json.scene ] : scenes[ 0 ];
var cameras = [];
for ( var name in dependencies.cameras ) {
var camera = dependencies.cameras[ name ];
cameras.push( camera );
}
var animations = [];
for ( var name in dependencies.animations ) {
animations.push( dependencies.animations[ name ] );
}
onLoad( scene, scenes, cameras, animations );
} ).catch( onError );
};
/**
* Requests the specified dependency asynchronously, with caching.
* @param {string} type
* @param {number} index
* @return {Promise<Object>}
*/
GLTFParser.prototype.getDependency = function ( type, index ) {
var cacheKey = type + ':' + index;
var dependency = this.cache.get( cacheKey );
if ( !dependency ) {
var fnName = 'load' + type.charAt( 0 ).toUpperCase() + type.slice( 1 );
dependency = this[ fnName ]( index );
this.cache.add( cacheKey, dependency );
}
return dependency;
};
/**
* 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 ];
if ( bufferDef.type && bufferDef.type !== 'arraybuffer' ) {
throw new Error( 'THREE.GLTFLoader: %s buffer type is not supported.', bufferDef.type );
}
// 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 ) {
var loader = new THREE.FileLoader();
loader.setResponseType( 'arraybuffer' );
loader.load( resolveURL( bufferDef.uri, options.path ), resolve);
} );
};
/**
* 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 );
} );
};
GLTFParser.prototype.loadAccessors = function () {
var parser = this;
var json = this.json;
return _each( json.accessors, function ( accessor ) {
return parser.getDependency( 'bufferView', accessor.bufferView ).then( function ( bufferView ) {
var itemSize = WEBGL_TYPE_SIZES[ accessor.type ];
var TypedArray = WEBGL_COMPONENT_TYPES[ accessor.componentType ];
// For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.
var elementBytes = TypedArray.BYTES_PER_ELEMENT;
var itemBytes = elementBytes * itemSize;
var byteStride = json.bufferViews[ accessor.bufferView ].byteStride;
var array;
// The buffer is not interleaved if the stride is the item size in bytes.
if ( byteStride && byteStride !== itemBytes ) {
// Use the full buffer if it's interleaved.
array = new TypedArray( bufferView );
// Integer parameters to IB/IBA are in array elements, not bytes.
var ib = new THREE.InterleavedBuffer( array, byteStride / elementBytes );
return new THREE.InterleavedBufferAttribute( ib, itemSize, accessor.byteOffset / elementBytes );
} else {
array = new TypedArray( bufferView, accessor.byteOffset, accessor.count * itemSize );
return new THREE.BufferAttribute( array, itemSize );
}
} );
} );
};
/**
* 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 URL = window.URL || window.webkitURL;
var textureDef = json.textures[ textureIndex ];
var 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 textureLoader = THREE.Loader.Handlers.get( sourceURI ) || new THREE.TextureLoader();
textureLoader.setCrossOrigin( options.crossOrigin );
return new Promise( function ( resolve, reject ) {
textureLoader.load( resolveURL( sourceURI, options.path ), resolve, undefined, reject );
} );
} ).then( function ( texture ) {
// Clean up resources and configure Texture.
if ( isObjectURL !== undefined ) {
URL.revokeObjectURL( sourceURI );
}
texture.flipY = false;
if ( textureDef.name !== undefined ) texture.name = textureDef.name;
texture.format = textureDef.format !== undefined ? WEBGL_TEXTURE_FORMATS[ textureDef.format ] : THREE.RGBAFormat;
if ( textureDef.internalFormat !== undefined && texture.format !== WEBGL_TEXTURE_FORMATS[ textureDef.internalFormat ] ) {
console.warn( 'THREE.GLTFLoader: Three.js does not support texture internalFormat which is different from texture format. ' +
'internalFormat will be forced to be the same value as format.' );
}
texture.type = textureDef.type !== undefined ? WEBGL_TEXTURE_DATATYPES[ textureDef.type ] : THREE.UnsignedByteType;
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} textureName
* @param {number} textureIndex
* @return {Promise}
*/
GLTFParser.prototype.assignTexture = function ( materialParams, textureName, textureIndex ) {
return this.getDependency( 'texture', textureIndex ).then( function ( texture ) {
materialParams[ textureName ] = texture;
} );
};
/**
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
* @return {Promise<Array<THREE.Material>>}
*/
GLTFParser.prototype.loadMaterials = function () {
var parser = this;
var json = this.json;
var extensions = this.extensions;
return _each( json.materials, function ( material ) {
var materialType;
var materialParams = {};
var materialExtensions = material.extensions || {};
var pending = [];
if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_COMMON ] ) {
var khcExtension = extensions[ EXTENSIONS.KHR_MATERIALS_COMMON ];
materialType = khcExtension.getMaterialType( material );
pending.push( khcExtension.extendParams( materialParams, material, parser ) );
} else if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] ) {
var sgExtension = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ];
materialType = sgExtension.getMaterialType( material );
pending.push( sgExtension.extendParams( materialParams, material, parser ) );
} else if ( material.pbrMetallicRoughness !== undefined ) {
// Specification:
// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material
materialType = THREE.MeshStandardMaterial;
var metallicRoughness = material.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.index ) );
}
materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;
materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;
if ( metallicRoughness.metallicRoughnessTexture !== undefined ) {
var textureIndex = metallicRoughness.metallicRoughnessTexture.index;
pending.push( parser.assignTexture( materialParams, 'metalnessMap', textureIndex ) );
pending.push( parser.assignTexture( materialParams, 'roughnessMap', textureIndex ) );
}
} else {
materialType = THREE.MeshPhongMaterial;
}
if ( material.doubleSided === true ) {
materialParams.side = THREE.DoubleSide;
}
var alphaMode = material.alphaMode || ALPHA_MODES.OPAQUE;
if ( alphaMode !== ALPHA_MODES.OPAQUE ) {
materialParams.transparent = true;
} else {
materialParams.transparent = false;
}
if ( material.normalTexture !== undefined ) {
pending.push( parser.assignTexture( materialParams, 'normalMap', material.normalTexture.index ) );
}
if ( material.occlusionTexture !== undefined ) {
pending.push( parser.assignTexture( materialParams, 'aoMap', material.occlusionTexture.index ) );
}
if ( material.emissiveFactor !== undefined ) {
if ( materialType === THREE.MeshBasicMaterial ) {
materialParams.color = new THREE.Color().fromArray( material.emissiveFactor );
} else {
materialParams.emissive = new THREE.Color().fromArray( material.emissiveFactor );
}
}
if ( material.emissiveTexture !== undefined ) {
if ( materialType === THREE.MeshBasicMaterial ) {
pending.push( parser.assignTexture( materialParams, 'map', material.emissiveTexture.index ) );
} else {
pending.push( parser.assignTexture( materialParams, 'emissiveMap', material.emissiveTexture.index ) );
}
}
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 ( material.name !== undefined ) _material.name = material.name;
// Normal map textures use OpenGL conventions:
// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#materialnormaltexture
_material.normalScale.x = -1;
_material.userData = material.extras;
return _material;
} );
} );
};
GLTFParser.prototype.loadGeometries = function ( primitives ) {
return this._withDependencies( [
'accessors',
] ).then( function ( dependencies ) {
return _each( primitives, function ( primitive ) {
var geometry = new THREE.BufferGeometry();
var attributes = primitive.attributes;
for ( var attributeId in attributes ) {
var attributeEntry = attributes[ attributeId ];
if ( attributeEntry === undefined ) return;
var bufferAttribute = dependencies.accessors[ attributeEntry ];
switch ( attributeId ) {
case 'POSITION':
geometry.addAttribute( 'position', bufferAttribute );
break;
case 'NORMAL':
geometry.addAttribute( 'normal', bufferAttribute );
break;
case 'TEXCOORD_0':
case 'TEXCOORD0':
case 'TEXCOORD':
geometry.addAttribute( 'uv', bufferAttribute );
break;
case 'TEXCOORD_1':
geometry.addAttribute( 'uv2', bufferAttribute );
break;
case 'COLOR_0':
case 'COLOR0':
case 'COLOR':
geometry.addAttribute( 'color', bufferAttribute );
break;
case 'WEIGHTS_0':
case 'WEIGHT': // WEIGHT semantic deprecated.
geometry.addAttribute( 'skinWeight', bufferAttribute );
break;
case 'JOINTS_0':
case 'JOINT': // JOINT semantic deprecated.
geometry.addAttribute( 'skinIndex', bufferAttribute );
break;
}
}
if ( primitive.indices !== undefined ) {
geometry.setIndex( dependencies.accessors[ primitive.indices ] );
}
return geometry;
} );
} );
};
/**
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes
*/
GLTFParser.prototype.loadMeshes = function () {
var scope = this;
var json = this.json;
return this._withDependencies( [
'accessors',
'materials'
] ).then( function ( dependencies ) {
return _each( json.meshes, function ( meshDef ) {
var group = new THREE.Group();
if ( meshDef.name !== undefined ) group.name = meshDef.name;
if ( meshDef.extras ) group.userData = meshDef.extras;
var primitives = meshDef.primitives || [];
return scope.loadGeometries( primitives ).then( function ( geometries ) {
for ( var name in primitives ) {
var primitive = primitives[ name ];
var geometry = geometries[ name ];
var material = primitive.material === undefined
? createDefaultMaterial()
: dependencies.materials[ primitive.material ];
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 ( geometry.attributes.color !== undefined ) {
material.vertexColors = THREE.VertexColors;
material.needsUpdate = true;
}
if ( geometry.attributes.normal === undefined ) {
if ( material.flatShading !== undefined ) {
material.flatShading = true;
} else {
// TODO: Remove this backwards-compatibility fix after r87 release.
material.shading = THREE.FlatShading;
}
}
var mesh;
if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLES || primitive.mode === undefined ) {
mesh = new THREE.Mesh( geometry, material );
} else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ) {
mesh = new THREE.Mesh( geometry, material );
mesh.drawMode = THREE.TriangleStripDrawMode;
} else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) {
mesh = new THREE.Mesh( geometry, material );
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 );
}
mesh.name = group.name + '_' + name;
if ( primitive.targets !== undefined ) {
addMorphTargets( mesh, meshDef, primitive, dependencies );
}
if ( primitive.extras ) mesh.userData = primitive.extras;
group.add( mesh );
}
return group;
} );
} );
} );
};
/**
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras
*/
GLTFParser.prototype.loadCameras = function () {
var json = this.json;
return _each( json.cameras, function ( camera ) {
var _camera;
var params = camera[ camera.type ];
if ( !params ) {
console.warn( 'THREE.GLTFLoader: Missing camera parameters.' );
return;
}
if ( camera.type === 'perspective' ) {
var aspectRatio = params.aspectRatio || 1;
var xfov = params.yfov * aspectRatio;
_camera = new THREE.PerspectiveCamera( THREE.Math.radToDeg( xfov ), aspectRatio, params.znear || 1, params.zfar || 2e6 );
} else if ( camera.type === 'orthographic' ) {
_camera = new THREE.OrthographicCamera( params.xmag / -2, params.xmag / 2, params.ymag / 2, params.ymag / -2, params.znear, params.zfar );
}
if ( camera.name !== undefined ) _camera.name = camera.name;
if ( camera.extras ) _camera.userData = camera.extras;
return _camera;
} );
};
GLTFParser.prototype.loadSkins = function () {
var json = this.json;
return this._withDependencies( [
'accessors'
] ).then( function ( dependencies ) {
return _each( json.skins, function ( skin ) {
var _skin = {
joints: skin.joints,
inverseBindMatrices: dependencies.accessors[ skin.inverseBindMatrices ]
};
return _skin;
} );
} );
};
GLTFParser.prototype.loadAnimations = function () {
var json = this.json;
return this._withDependencies( [
'accessors',
'nodes'
] ).then( function ( dependencies ) {
return _each( json.animations, function ( animation, animationId ) {
var tracks = [];
for ( var channelId in animation.channels ) {
var channel = animation.channels[ channelId ];
var sampler = animation.samplers[ channel.sampler ];
if ( sampler ) {
var target = channel.target;
var name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.
var input = animation.parameters !== undefined ? animation.parameters[ sampler.input ] : sampler.input;
var output = animation.parameters !== undefined ? animation.parameters[ sampler.output ] : sampler.output;
var inputAccessor = dependencies.accessors[ input ];
var outputAccessor = dependencies.accessors[ output ];
var node = dependencies.nodes[ name ];
if ( node ) {
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;
if ( sampler.interpolation === 'CATMULLROMSPLINE' ) {
console.warn( 'THREE.GLTFLoader: CATMULLROMSPLINE interpolation is not supported. Using CUBICSPLINE instead.' );
}
var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : THREE.InterpolateLinear;
var targetNames = [];
if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) {
// node should be THREE.Group here but
// PATH_PROPERTIES.weights(morphTargetInfluences) should be
// the property of a mesh object under node.
// So finding targets here.
node.traverse( function ( object ) {
if ( object.isMesh === true && object.material.morphTargets === true ) {
targetNames.push( object.name ? object.name : object.uuid );
}
} );
} else {
targetNames.push( targetName );
}
// KeyframeTrack.optimize() will modify given 'times' and 'values'
// buffers before creating a truncated copy to keep. Because buffers may
// be reused by other tracks, make copies here.
for ( var i = 0, il = targetNames.length; i < il; i ++ ) {
tracks.push( new TypedKeyframeTrack(
targetNames[ i ] + '.' + PATH_PROPERTIES[ target.path ],
THREE.AnimationUtils.arraySlice( inputAccessor.array, 0 ),
THREE.AnimationUtils.arraySlice( outputAccessor.array, 0 ),
interpolation
) );
}
}
}
}
var name = animation.name !== undefined ? animation.name : 'animation_' + animationId;
return new THREE.AnimationClip( name, undefined, tracks );
} );
} );
};
GLTFParser.prototype.loadNodes = function () {
var json = this.json;
var extensions = this.extensions;
var scope = this;
var nodes = json.nodes || [];
var skins = json.skins || [];
// Nothing in the node definition indicates whether it is a Bone or an
// Object3D. Use the skins' joint references to mark bones.
skins.forEach( function ( skin ) {
skin.joints.forEach( function ( id ) {
nodes[ id ].isBone = true;
} );
} );
return _each( json.nodes, function ( node ) {
var matrix = new THREE.Matrix4();
var _node = node.isBone === true ? new THREE.Bone() : new THREE.Object3D();
if ( node.name !== undefined ) {
_node.name = THREE.PropertyBinding.sanitizeNodeName( node.name );
}
if ( node.extras ) _node.userData = node.extras;
if ( node.matrix !== undefined ) {
matrix.fromArray( node.matrix );
_node.applyMatrix( matrix );
} else {
if ( node.translation !== undefined ) {
_node.position.fromArray( node.translation );
}
if ( node.rotation !== undefined ) {
_node.quaternion.fromArray( node.rotation );
}
if ( node.scale !== undefined ) {
_node.scale.fromArray( node.scale );
}
}
return _node;
} ).then( function ( __nodes ) {
return scope._withDependencies( [
'meshes',
'skins',
'cameras'
] ).then( function ( dependencies ) {
return _each( __nodes, function ( _node, nodeId ) {
var node = json.nodes[ nodeId ];
var meshes;
if ( node.mesh !== undefined) {
meshes = [ node.mesh ];
} else if ( node.meshes !== undefined ) {
console.warn( 'THREE.GLTFLoader: Legacy glTF file detected. Nodes may have no more than one mesh.' );
meshes = node.meshes;
}
if ( meshes !== undefined ) {
for ( var meshId in meshes ) {
var mesh = meshes[ meshId ];
var group = dependencies.meshes[ mesh ];
if ( group === undefined ) {
console.warn( 'THREE.GLTFLoader: Could not find node "' + mesh + '".' );
continue;
}
// do not clone children as they will be replaced anyway
var clonedgroup = group.clone( false );
for ( var childrenId in group.children ) {
var child = group.children[ childrenId ];
var originalChild = child;
// clone Mesh to add to _node
var originalMaterial = child.material;
var originalGeometry = child.geometry;
var originalInfluences = child.morphTargetInfluences;
var originalUserData = child.userData;
var originalName = child.name;
var material = originalMaterial;
switch ( child.type ) {
case 'LineSegments':
child = new THREE.LineSegments( originalGeometry, material );
break;
case 'LineLoop':
child = new THREE.LineLoop( originalGeometry, material );
break;
case 'Line':
child = new THREE.Line( originalGeometry, material );
break;
case 'Points':
child = new THREE.Points( originalGeometry, material );
break;
default:
child = new THREE.Mesh( originalGeometry, material );
child.drawMode = originalChild.drawMode;
}
child.castShadow = true;
child.morphTargetInfluences = originalInfluences;
child.userData = originalUserData;
child.name = originalName;
var skinEntry;
if ( node.skin !== undefined ) {
skinEntry = dependencies.skins[ node.skin ];
}
// Replace Mesh with SkinnedMesh in library
if ( skinEntry ) {
var geometry = originalGeometry;
material = originalMaterial;
material.skinning = true;
child = new THREE.SkinnedMesh( geometry, material );
child.castShadow = true;
child.userData = originalUserData;
child.name = originalName;
var bones = [];
var boneInverses = [];
for ( var i = 0, l = skinEntry.joints.length; i < l; i ++ ) {
var jointId = skinEntry.joints[ i ];
var jointNode = __nodes[ jointId ];
if ( jointNode ) {
bones.push( jointNode );
var m = skinEntry.inverseBindMatrices.array;
var mat = new THREE.Matrix4().fromArray( m, i * 16 );
boneInverses.push( mat );
} else {
console.warn( 'THREE.GLTFLoader: Joint "%s" could not be found.', jointId );
}
}
child.bind( new THREE.Skeleton( bones, boneInverses ), child.matrixWorld );
}
clonedgroup.add( child );
}
_node.add( clonedgroup );
}
}
if ( node.camera !== undefined ) {
var camera = dependencies.cameras[ node.camera ];
_node.add( camera );
}
if ( node.extensions
&& node.extensions[ EXTENSIONS.KHR_LIGHTS ]
&& node.extensions[ EXTENSIONS.KHR_LIGHTS ].light !== undefined ) {
var lights = extensions[ EXTENSIONS.KHR_LIGHTS ].lights;
_node.add( lights[ node.extensions[ EXTENSIONS.KHR_LIGHTS ].light ] );
}
return _node;
} );
} );
} );
};
GLTFParser.prototype.loadScenes = function () {
var json = this.json;
var extensions = this.extensions;
// scene node hierachy builder
function buildNodeHierachy( nodeId, parentObject, allNodes ) {
var _node = allNodes[ nodeId ];
parentObject.add( _node );
var node = json.nodes[ nodeId ];
if ( node.children ) {
var children = node.children;
for ( var i = 0, l = children.length; i < l; i ++ ) {
var child = children[ i ];
buildNodeHierachy( child, _node, allNodes );
}
}
}
return this._withDependencies( [
'nodes'
] ).then( function ( dependencies ) {
return _each( json.scenes, function ( scene ) {
var _scene = new THREE.Scene();
if ( scene.name !== undefined ) _scene.name = scene.name;
if ( scene.extras ) _scene.userData = scene.extras;
var nodes = scene.nodes || [];
for ( var i = 0, l = nodes.length; i < l; i ++ ) {
var nodeId = nodes[ i ];
buildNodeHierachy( nodeId, _scene, dependencies.nodes );
}
_scene.traverse( function ( child ) {
// for Specular-Glossiness.
if ( child.material && child.material.isGLTFSpecularGlossinessMaterial ) {
child.onBeforeRender = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].refreshUniforms;
}
} );
// Ambient lighting, if present, is always attached to the scene root.
if ( scene.extensions
&& scene.extensions[ EXTENSIONS.KHR_LIGHTS ]
&& scene.extensions[ EXTENSIONS.KHR_LIGHTS ].light !== undefined ) {
var lights = extensions[ EXTENSIONS.KHR_LIGHTS ].lights;
_scene.add( lights[ scene.extensions[ EXTENSIONS.KHR_LIGHTS ].light ] );
}
return _scene;
} );
} );
};
export default GLTFLoader