/**
* @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
*/
//const THREE = require('../three71.js');
const GLTFLoader = function (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) {
console.log(e);
if (onError !== undefined) {
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 || {};
// loaders 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 loaders 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;
});
});
};
module.exports = exports = GLTFLoader;