node-three-gltf
Version:
Use three.js GLTFLoader in a Node.js environment
1,277 lines (1,271 loc) • 188 kB
JavaScript
'use strict';
var jsdom = require('jsdom');
var node_util = require('node:util');
var node_buffer = require('node:buffer');
var node_url = require('node:url');
var node_path = require('node:path');
var three = require('three');
var promises = require('node:fs/promises');
var fetch = require('node-fetch');
var base64Js = require('base64-js');
var sharp = require('sharp');
var node_worker_threads = require('node:worker_threads');
var _documentCurrentScript = typeof document !== 'undefined' ? document.currentScript : null;
const dom = new jsdom.JSDOM().window;
if (!global.DOMParser) {
global.DOMParser = dom.DOMParser;
}
if (!global.Blob) {
global.Blob = node_buffer.Blob;
}
if (!global.URL) {
global.URL = node_url.URL;
}
if (!global.TextDecoder) {
global.TextDecoder = node_util.TextDecoder;
}
const loading = {};
class FileLoader extends three.Loader {
constructor(manager) {
super(manager);
}
load(url, onLoad, onProgress, onError) {
if (url === undefined)
url = '';
if (this.path !== undefined)
url = this.path + url;
url = this.manager.resolveURL(url);
if (loading[url] !== undefined) {
loading[url].push({
onLoad,
onProgress,
onError
});
return;
}
loading[url] = [];
loading[url].push({
onLoad,
onProgress,
onError,
});
const mimeType = this.mimeType;
const responseType = this.responseType;
let promise;
if (!/^https?:\/\//.test(url) && !/^data:/.test(url)) {
promise = promises.readFile(url)
.then(buffer => {
switch (responseType) {
case 'arraybuffer':
const ab = new ArrayBuffer(buffer.length);
const view = new Uint8Array(ab);
for (let i = 0; i < buffer.length; i++) {
view[i] = buffer[i];
}
return ab;
case 'document':
const text = buffer.toString();
const parser = new DOMParser();
return parser.parseFromString(text, mimeType);
case 'json':
return JSON.parse(buffer.toString());
default:
return buffer.toString();
}
});
}
else if (/^data:application\/octet-stream;base64,/.test(url)) {
const base64 = url.split(';base64,').pop();
const buffer = base64Js.toByteArray(base64);
promise = Promise.resolve(buffer.buffer);
}
else {
const req = new fetch.Request(url, {
headers: new fetch.Headers(this.requestHeader),
credentials: this.withCredentials ? 'include' : 'same-origin',
});
promise = fetch(req)
.then(response => {
if (response.status === 200 || response.status === 0) {
if (response.status === 0) {
console.warn('THREE.FileLoader: HTTP Status 0 received.');
}
return response;
}
else {
throw Error(`fetch for "${response.url}" responded with ${response.status}: ${response.statusText}`);
}
})
.then(response => {
switch (responseType) {
case 'arraybuffer':
return response.arrayBuffer();
case 'blob':
return response.blob();
case 'document':
return response.text()
.then(text => {
const parser = new DOMParser();
return parser.parseFromString(text, mimeType);
});
case 'json':
return response.json();
default:
if (mimeType === undefined) {
return response.text();
}
else {
const re = /charset="?([^;"\s]*)"?/i;
const exec = re.exec(mimeType);
const label = exec && exec[1] ? exec[1].toLowerCase() : undefined;
const decoder = new TextDecoder(label);
return response.arrayBuffer().then(ab => decoder.decode(ab));
}
}
});
}
promise
.then(data => {
const callbacks = loading[url];
delete loading[url];
for (let i = 0, il = callbacks.length; i < il; i++) {
const callback = callbacks[i];
if (callback.onLoad)
callback.onLoad(data);
}
})
.catch(err => {
const callbacks = loading[url];
if (callbacks === undefined) {
this.manager.itemError(url);
throw err;
}
delete loading[url];
for (let i = 0, il = callbacks.length; i < il; i++) {
const callback = callbacks[i];
if (callback.onError)
callback.onError(err);
}
this.manager.itemError(url);
})
.finally(() => {
this.manager.itemEnd(url);
});
this.manager.itemStart(url);
}
setResponseType(value) {
this.responseType = value;
return this;
}
setMimeType(value) {
this.mimeType = value;
return this;
}
}
class ImageLoader extends three.Loader {
constructor(manager) {
super(manager);
}
load(url, onLoad, onProgress, onError) {
if (this.path !== undefined)
url = this.path + url;
url = this.manager.resolveURL(url);
const scope = this;
const cached = three.Cache.get(url);
if (cached !== undefined) {
scope.manager.itemStart(url);
setTimeout(function () {
if (onLoad)
onLoad(cached);
scope.manager.itemEnd(url);
}, 0);
}
scope.manager.itemStart(url);
Promise.resolve()
.then(async () => {
if (/^blob:.*$/i.test(url)) {
const blob = node_buffer.resolveObjectURL(url);
const imageBuffer = node_buffer.Buffer.from(await blob.arrayBuffer());
return sharp(imageBuffer);
}
else if (/^data:/.test(url)) {
const base64 = url.split(';base64,').pop();
const imageBuffer = base64Js.toByteArray(base64);
return sharp(imageBuffer);
}
else if (/^https?:\/\//.test(url)) {
const req = new fetch.Request(url, {
headers: new fetch.Headers(this.requestHeader),
credentials: this.withCredentials ? 'include' : 'same-origin',
});
const response = await fetch(req);
const buffer = node_buffer.Buffer.from(await response.arrayBuffer());
return sharp(buffer);
}
else {
return sharp(url);
}
})
.then(image => image
.ensureAlpha()
.raw()
.toBuffer({ resolveWithObject: true }))
.then(({ data, info }) => ({
data,
width: info.width,
height: info.height,
channels: info.channels,
}))
.then(data => {
three.Cache.add(url, data);
if (onLoad)
onLoad(data);
scope.manager.itemEnd(url);
})
.catch(err => {
if (onError)
onError(err);
scope.manager.itemError(url);
scope.manager.itemEnd(url);
});
}
}
class TextureLoader extends three.Loader {
constructor(manager) {
super(manager);
}
load(url, onLoad, onProgress, onError) {
const texture = new three.Texture();
const loader = new ImageLoader(this.manager);
loader.setCrossOrigin(this.crossOrigin);
loader.setPath(this.path);
loader.load(url, function (image) {
texture.image = image;
texture.needsUpdate = true;
if (onLoad !== undefined) {
onLoad(texture);
}
}, onProgress, onError);
return texture;
}
}
class GLTFLoader extends three.Loader {
constructor(manager) {
super(manager);
this.dracoLoader = null;
this.ktx2Loader = null;
this.meshoptDecoder = null;
this.pluginCallbacks = [];
this.register((parser) => {
return new GLTFMaterialsClearcoatExtension$1(parser);
});
this.register((parser) => {
return new GLTFTextureBasisUExtension(parser);
});
this.register((parser) => {
return new GLTFTextureWebPExtension(parser);
});
this.register((parser) => {
return new GLTFMaterialsSheenExtension$1(parser);
});
this.register((parser) => {
return new GLTFMaterialsTransmissionExtension$1(parser);
});
this.register((parser) => {
return new GLTFMaterialsVolumeExtension$1(parser);
});
this.register((parser) => {
return new GLTFMaterialsIorExtension$1(parser);
});
this.register(function (parser) {
return new GLTFMaterialsEmissiveStrengthExtension$1(parser);
});
this.register((parser) => {
return new GLTFMaterialsSpecularExtension$1(parser);
});
this.register(function (parser) {
return new GLTFMaterialsAnisotropyExtension$1(parser);
});
this.register((parser) => {
return new GLTFLightsExtension(parser);
});
this.register((parser) => {
return new GLTFMeshoptCompression(parser);
});
}
load(url, onLoad, onProgress, onError) {
const scope = this;
let resourcePath;
if (this.resourcePath !== '') {
resourcePath = this.resourcePath;
}
else if (this.path !== '') {
resourcePath = this.path;
}
else {
if (!/^https?:\/\//.test(url) && !/^data:/.test(url)) {
resourcePath = node_path.dirname(url) + node_path.sep;
}
else {
resourcePath = three.LoaderUtils.extractUrlBase(url);
}
}
this.manager.itemStart(url);
const _onError = (e) => {
if (onError) {
onError(e);
}
else {
console.error(e);
}
scope.manager.itemError(url);
scope.manager.itemEnd(url);
};
const loader = new FileLoader(this.manager);
loader.setPath(this.path);
loader.setResponseType('arraybuffer');
loader.setRequestHeader(this.requestHeader);
loader.setWithCredentials(this.withCredentials);
loader.load(url, (data) => {
try {
scope.parse(data, resourcePath, (gltf) => {
onLoad(gltf);
scope.manager.itemEnd(url);
}, _onError);
}
catch (e) {
_onError(e);
}
}, onProgress, _onError);
}
setDRACOLoader(dracoLoader) {
this.dracoLoader = dracoLoader;
return this;
}
setDDSLoader() {
throw new Error('THREE.GLTFLoader: "MSFT_texture_dds" no longer supported. Please update to "KHR_texture_basisu".');
}
setKTX2Loader(ktx2Loader) {
this.ktx2Loader = ktx2Loader;
return this;
}
setMeshoptDecoder(meshoptDecoder) {
this.meshoptDecoder = meshoptDecoder;
return this;
}
register(callback) {
if (this.pluginCallbacks.indexOf(callback) === -1) {
this.pluginCallbacks.push(callback);
}
return this;
}
unregister(callback) {
if (this.pluginCallbacks.indexOf(callback) !== -1) {
this.pluginCallbacks.splice(this.pluginCallbacks.indexOf(callback), 1);
}
return this;
}
parse(data, path, onLoad, onError) {
let content;
const extensions = {};
const plugins = {};
const textDecoder = new TextDecoder();
if (typeof data === 'string') {
content = data;
}
else {
if (data instanceof node_buffer.Buffer) {
data = data.buffer;
}
const magic = textDecoder.decode(new Uint8Array(data.slice(0, 4)));
if (magic === BINARY_EXTENSION_HEADER_MAGIC) {
try {
extensions[EXTENSIONS.KHR_BINARY_GLTF] = new GLTFBinaryExtension(data);
}
catch (error) {
if (onError)
onError(error);
return;
}
content = extensions[EXTENSIONS.KHR_BINARY_GLTF].content;
}
else {
content = textDecoder.decode(new Uint8Array(data));
}
}
const json = JSON.parse(content);
if (json.asset === undefined || json.asset.version[0] < 2) {
if (onError) {
onError(new Error('THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported.'));
}
return;
}
const parser = new GLTFParser(json, {
path: path || this.resourcePath || '',
crossOrigin: this.crossOrigin,
requestHeader: this.requestHeader,
manager: this.manager,
ktx2Loader: this.ktx2Loader,
meshoptDecoder: this.meshoptDecoder
});
parser.fileLoader.setRequestHeader(this.requestHeader);
for (let i = 0; i < this.pluginCallbacks.length; i++) {
const plugin = this.pluginCallbacks[i](parser);
plugins[plugin.name] = plugin;
extensions[plugin.name] = true;
}
if (json.extensionsUsed) {
for (let i = 0; i < json.extensionsUsed.length; ++i) {
const extensionName = json.extensionsUsed[i];
const extensionsRequired = json.extensionsRequired || [];
switch (extensionName) {
case EXTENSIONS.KHR_MATERIALS_UNLIT:
extensions[extensionName] = new GLTFMaterialsUnlitExtension$1();
break;
case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
extensions[extensionName] = new GLTFDracoMeshCompressionExtension(json, this.dracoLoader);
break;
case EXTENSIONS.KHR_TEXTURE_TRANSFORM:
extensions[extensionName] = new GLTFTextureTransformExtension();
break;
case EXTENSIONS.KHR_MESH_QUANTIZATION:
extensions[extensionName] = new GLTFMeshQuantizationExtension();
break;
default:
if (extensionsRequired.indexOf(extensionName) >= 0 && plugins[extensionName] === undefined) {
console.warn('THREE.GLTFLoader: Unknown extension "' + extensionName + '".');
}
}
}
}
parser.setExtensions(extensions);
parser.setPlugins(plugins);
parser.parse(onLoad, onError);
}
parseAsync(data, path) {
const scope = this;
return new Promise(function (resolve, reject) {
scope.parse(data, path, resolve, reject);
});
}
}
GLTFLoader.LOG_TEXTURE_LOAD_ERROR = true;
function GLTFRegistry() {
let objects = {};
return {
get: (key) => {
return objects[key];
},
add: (key, object) => {
objects[key] = object;
},
remove: (key) => {
delete objects[key];
},
removeAll: () => {
objects = {};
}
};
}
const EXTENSIONS = {
KHR_BINARY_GLTF: 'KHR_binary_glTF',
KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',
KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',
KHR_MATERIALS_CLEARCOAT: 'KHR_materials_clearcoat',
KHR_MATERIALS_IOR: 'KHR_materials_ior',
KHR_MATERIALS_SHEEN: 'KHR_materials_sheen',
KHR_MATERIALS_SPECULAR: 'KHR_materials_specular',
KHR_MATERIALS_TRANSMISSION: 'KHR_materials_transmission',
KHR_MATERIALS_ANISOTROPY: 'KHR_materials_anisotropy',
KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
KHR_MATERIALS_VOLUME: 'KHR_materials_volume',
KHR_TEXTURE_BASISU: 'KHR_texture_basisu',
KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform',
KHR_MESH_QUANTIZATION: 'KHR_mesh_quantization',
KHR_MATERIALS_EMISSIVE_STRENGTH: 'KHR_materials_emissive_strength',
EXT_TEXTURE_WEBP: 'EXT_texture_webp',
EXT_MESHOPT_COMPRESSION: 'EXT_meshopt_compression'
};
class GLTFLightsExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;
this.cache = { refs: {}, uses: {} };
this.parser = parser;
}
_markDefs() {
const parser = this.parser;
const nodeDefs = this.parser.json.nodes || [];
for (let nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex++) {
const nodeDef = nodeDefs[nodeIndex];
if (nodeDef.extensions
&& nodeDef.extensions[this.name]
&& nodeDef.extensions[this.name].light !== undefined) {
parser._addNodeRef(this.cache, nodeDef.extensions[this.name].light);
}
}
}
_loadLight(lightIndex) {
const parser = this.parser;
const cacheKey = 'light:' + lightIndex;
let dependency = parser.cache.get(cacheKey);
if (dependency)
return dependency;
const json = parser.json;
const extensions = (json.extensions && json.extensions[this.name]) || {};
const lightDefs = extensions.lights || [];
const lightDef = lightDefs[lightIndex];
let lightNode;
const color = new three.Color(0xffffff);
if (lightDef.color !== undefined)
color.setRGB(lightDef.color[0], lightDef.color[1], lightDef.color[2], three.LinearSRGBColorSpace);
const range = lightDef.range !== undefined ? lightDef.range : 0;
switch (lightDef.type) {
case 'directional':
lightNode = new three.DirectionalLight(color);
lightNode.target.position.set(0, 0, -1);
lightNode.add(lightNode.target);
break;
case 'point':
lightNode = new three.PointLight(color);
lightNode.distance = range;
break;
case 'spot':
lightNode = new three.SpotLight(color);
lightNode.distance = range;
lightDef.spot = lightDef.spot || {};
lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle : 0;
lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0;
lightNode.angle = lightDef.spot.outerConeAngle;
lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
lightNode.target.position.set(0, 0, -1);
lightNode.add(lightNode.target);
break;
default:
throw new Error('THREE.GLTFLoader: Unexpected light type: ' + lightDef.type);
}
lightNode.position.set(0, 0, 0);
lightNode.decay = 2;
if (lightDef.intensity !== undefined)
lightNode.intensity = lightDef.intensity;
lightNode.name = parser.createUniqueName(lightDef.name || ('light_' + lightIndex));
dependency = Promise.resolve(lightNode);
parser.cache.add(cacheKey, dependency);
return dependency;
}
createNodeAttachment(nodeIndex) {
const self = this;
const parser = this.parser;
const json = parser.json;
const nodeDef = json.nodes[nodeIndex];
const lightDef = (nodeDef.extensions && nodeDef.extensions[this.name]) || {};
const lightIndex = lightDef.light;
if (lightIndex === undefined)
return null;
return this._loadLight(lightIndex).then(function (light) {
return parser._getNodeRef(self.cache, lightIndex, light);
});
}
}
let GLTFMaterialsUnlitExtension$1 = class GLTFMaterialsUnlitExtension {
constructor() {
this.name = EXTENSIONS.KHR_MATERIALS_UNLIT;
}
getMaterialType() {
return three.MeshBasicMaterial;
}
extendParams(materialParams, materialDef, parser) {
const pending = [];
materialParams.color = new three.Color(1.0, 1.0, 1.0);
materialParams.opacity = 1.0;
const metallicRoughness = materialDef.pbrMetallicRoughness;
if (metallicRoughness) {
if (Array.isArray(metallicRoughness.baseColorFactor)) {
const array = metallicRoughness.baseColorFactor;
materialParams.color.setRGB(array[0], array[1], array[2], three.LinearSRGBColorSpace);
materialParams.opacity = array[3];
}
if (metallicRoughness.baseColorTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'map', metallicRoughness.baseColorTexture, three.SRGBColorSpace));
}
}
return Promise.all(pending);
}
};
let GLTFMaterialsEmissiveStrengthExtension$1 = class GLTFMaterialsEmissiveStrengthExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_MATERIALS_EMISSIVE_STRENGTH;
this.parser = parser;
}
extendMaterialParams(materialIndex, materialParams) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
const emissiveStrength = materialDef.extensions[this.name].emissiveStrength;
if (emissiveStrength !== undefined) {
materialParams.emissiveIntensity = emissiveStrength;
}
return Promise.resolve();
}
};
let GLTFMaterialsClearcoatExtension$1 = class GLTFMaterialsClearcoatExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_MATERIALS_CLEARCOAT;
this.parser = parser;
}
getMaterialType(materialIndex) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name])
return null;
return three.MeshPhysicalMaterial;
}
extendMaterialParams(materialIndex, materialParams) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
const pending = [];
const extension = materialDef.extensions[this.name];
if (extension.clearcoatFactor !== undefined) {
materialParams.clearcoat = extension.clearcoatFactor;
}
if (extension.clearcoatTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'clearcoatMap', extension.clearcoatTexture));
}
if (extension.clearcoatRoughnessFactor !== undefined) {
materialParams.clearcoatRoughness = extension.clearcoatRoughnessFactor;
}
if (extension.clearcoatRoughnessTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'clearcoatRoughnessMap', extension.clearcoatRoughnessTexture));
}
if (extension.clearcoatNormalTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'clearcoatNormalMap', extension.clearcoatNormalTexture));
if (extension.clearcoatNormalTexture.scale !== undefined) {
const scale = extension.clearcoatNormalTexture.scale;
materialParams.clearcoatNormalScale = new three.Vector2(scale, scale);
}
}
return Promise.all(pending);
}
};
let GLTFMaterialsSheenExtension$1 = class GLTFMaterialsSheenExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_MATERIALS_SHEEN;
this.parser = parser;
}
getMaterialType(materialIndex) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name])
return null;
return three.MeshPhysicalMaterial;
}
extendMaterialParams(materialIndex, materialParams) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
const pending = [];
materialParams.sheenColor = new three.Color(0, 0, 0);
materialParams.sheenRoughness = 0;
materialParams.sheen = 1;
const extension = materialDef.extensions[this.name];
if (extension.sheenColorFactor !== undefined) {
const colorFactor = extension.sheenColorFactor;
materialParams.sheenColor.setRGB(colorFactor[0], colorFactor[1], colorFactor[2], three.LinearSRGBColorSpace);
}
if (extension.sheenRoughnessFactor !== undefined) {
materialParams.sheenRoughness = extension.sheenRoughnessFactor;
}
if (extension.sheenColorTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'sheenColorMap', extension.sheenColorTexture, three.SRGBColorSpace));
}
if (extension.sheenRoughnessTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'sheenRoughnessMap', extension.sheenRoughnessTexture));
}
return Promise.all(pending);
}
};
let GLTFMaterialsTransmissionExtension$1 = class GLTFMaterialsTransmissionExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_MATERIALS_TRANSMISSION;
this.parser = parser;
}
getMaterialType(materialIndex) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name])
return null;
return three.MeshPhysicalMaterial;
}
extendMaterialParams(materialIndex, materialParams) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
const pending = [];
const extension = materialDef.extensions[this.name];
if (extension.transmissionFactor !== undefined) {
materialParams.transmission = extension.transmissionFactor;
}
if (extension.transmissionTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'transmissionMap', extension.transmissionTexture));
}
return Promise.all(pending);
}
};
let GLTFMaterialsVolumeExtension$1 = class GLTFMaterialsVolumeExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_MATERIALS_VOLUME;
this.parser = parser;
}
getMaterialType(materialIndex) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name])
return null;
return three.MeshPhysicalMaterial;
}
extendMaterialParams(materialIndex, materialParams) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
const pending = [];
const extension = materialDef.extensions[this.name];
materialParams.thickness = extension.thicknessFactor !== undefined ? extension.thicknessFactor : 0;
if (extension.thicknessTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'thicknessMap', extension.thicknessTexture));
}
materialParams.attenuationDistance = extension.attenuationDistance || 0;
const colorArray = extension.attenuationColor || [1, 1, 1];
materialParams.attenuationColor = new three.Color().setRGB(colorArray[0], colorArray[1], colorArray[2], three.LinearSRGBColorSpace);
return Promise.all(pending);
}
};
let GLTFMaterialsIorExtension$1 = class GLTFMaterialsIorExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_MATERIALS_IOR;
this.parser = parser;
}
getMaterialType(materialIndex) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name])
return null;
return three.MeshPhysicalMaterial;
}
extendMaterialParams(materialIndex, materialParams) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
const extension = materialDef.extensions[this.name];
materialParams.ior = extension.ior !== undefined ? extension.ior : 1.5;
return Promise.resolve();
}
};
let GLTFMaterialsSpecularExtension$1 = class GLTFMaterialsSpecularExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_MATERIALS_SPECULAR;
this.parser = parser;
}
getMaterialType(materialIndex) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name])
return null;
return three.MeshPhysicalMaterial;
}
extendMaterialParams(materialIndex, materialParams) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
const pending = [];
const extension = materialDef.extensions[this.name];
materialParams.specularIntensity = extension.specularFactor !== undefined ? extension.specularFactor : 1.0;
if (extension.specularTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'specularIntensityMap', extension.specularTexture));
}
const colorArray = extension.specularColorFactor || [1, 1, 1];
materialParams.specularColor = new three.Color().setRGB(colorArray[0], colorArray[1], colorArray[2], three.LinearSRGBColorSpace);
if (extension.specularColorTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'specularColorMap', extension.specularColorTexture, three.SRGBColorSpace));
}
return Promise.all(pending);
}
};
let GLTFMaterialsAnisotropyExtension$1 = class GLTFMaterialsAnisotropyExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_MATERIALS_ANISOTROPY;
this.parser = parser;
}
getMaterialType(materialIndex) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name])
return null;
return three.MeshPhysicalMaterial;
}
extendMaterialParams(materialIndex, materialParams) {
const parser = this.parser;
const materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
const pending = [];
const extension = materialDef.extensions[this.name];
if (extension.anisotropyStrength !== undefined) {
materialParams.anisotropy = extension.anisotropyStrength;
}
if (extension.anisotropyRotation !== undefined) {
materialParams.anisotropyRotation = extension.anisotropyRotation;
}
if (extension.anisotropyTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'anisotropyMap', extension.anisotropyTexture));
}
return Promise.all(pending);
}
};
class GLTFTextureBasisUExtension {
constructor(parser) {
this.name = EXTENSIONS.KHR_TEXTURE_BASISU;
this.parser = parser;
}
loadTexture(textureIndex) {
const parser = this.parser;
const json = parser.json;
const textureDef = json.textures[textureIndex];
if (!textureDef.extensions || !textureDef.extensions[this.name]) {
return null;
}
const extension = textureDef.extensions[this.name];
const loader = parser.options.ktx2Loader;
if (!loader) {
if (json.extensionsRequired && json.extensionsRequired.indexOf(this.name) >= 0) {
throw new Error('THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures');
}
else {
return null;
}
}
return parser.loadTextureImage(textureIndex, extension.source, loader);
}
}
class GLTFTextureWebPExtension {
constructor(parser) {
this.name = EXTENSIONS.EXT_TEXTURE_WEBP;
this.isSupported = null;
this.parser = parser;
}
loadTexture(textureIndex) {
const name = this.name;
const parser = this.parser;
const json = parser.json;
const textureDef = json.textures[textureIndex];
if (!textureDef.extensions || !textureDef.extensions[name]) {
return null;
}
const extension = textureDef.extensions[name];
const source = json.images[extension.source];
let loader = parser.textureLoader;
if (source.uri) {
const handler = parser.options.manager.getHandler(source.uri);
if (handler !== null)
loader = handler;
}
return this.detectSupport().then(function (isSupported) {
if (isSupported)
return parser.loadTextureImage(textureIndex, extension.source, loader);
if (json.extensionsRequired && json.extensionsRequired.indexOf(name) >= 0) {
throw new Error('THREE.GLTFLoader: WebP required by asset but unsupported.');
}
return parser.loadTexture(textureIndex);
});
}
detectSupport() {
if (!this.isSupported) {
this.isSupported = Promise.resolve(true);
}
return this.isSupported;
}
}
class GLTFMeshoptCompression {
constructor(parser) {
this.name = EXTENSIONS.EXT_MESHOPT_COMPRESSION;
this.parser = parser;
}
loadBufferView(index) {
const json = this.parser.json;
const bufferView = json.bufferViews[index];
if (bufferView.extensions && bufferView.extensions[this.name]) {
const extensionDef = bufferView.extensions[this.name];
const buffer = this.parser.getDependency('buffer', extensionDef.buffer);
const decoder = this.parser.options.meshoptDecoder;
if (!decoder || !decoder.supported) {
if (json.extensionsRequired && json.extensionsRequired.indexOf(this.name) >= 0) {
throw new Error('THREE.GLTFLoader: setMeshoptDecoder must be called before loading compressed files');
}
else {
return null;
}
}
return Promise.all([buffer, decoder.ready]).then(function (res) {
const byteOffset = extensionDef.byteOffset || 0;
const byteLength = extensionDef.byteLength || 0;
const count = extensionDef.count;
const stride = extensionDef.byteStride;
const result = new ArrayBuffer(count * stride);
const source = new Uint8Array(res[0], byteOffset, byteLength);
decoder.decodeGltfBuffer(new Uint8Array(result), count, stride, source, extensionDef.mode, extensionDef.filter);
return result;
});
}
else {
return null;
}
}
}
const BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
const BINARY_EXTENSION_HEADER_LENGTH = 12;
const BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 };
class GLTFBinaryExtension {
constructor(data) {
this.name = EXTENSIONS.KHR_BINARY_GLTF;
this.content = null;
this.body = null;
const headerView = new DataView(data, 0, BINARY_EXTENSION_HEADER_LENGTH);
const textDecoder = new TextDecoder();
this.header = {
magic: textDecoder.decode(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.');
}
const chunkContentsLength = this.header.length - BINARY_EXTENSION_HEADER_LENGTH;
const chunkView = new DataView(data, BINARY_EXTENSION_HEADER_LENGTH);
let chunkIndex = 0;
while (chunkIndex < chunkContentsLength) {
const chunkLength = chunkView.getUint32(chunkIndex, true);
chunkIndex += 4;
const chunkType = chunkView.getUint32(chunkIndex, true);
chunkIndex += 4;
if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON) {
const contentArray = new Uint8Array(data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength);
this.content = textDecoder.decode(contentArray);
}
else if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN) {
const byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
this.body = data.slice(byteOffset, byteOffset + chunkLength);
}
chunkIndex += chunkLength;
}
if (this.content === null) {
throw new Error('THREE.GLTFLoader: JSON content not found.');
}
}
}
class GLTFDracoMeshCompressionExtension {
constructor(json, dracoLoader) {
this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
if (!dracoLoader) {
throw new Error('THREE.GLTFLoader: No DRACOLoader instance provided.');
}
this.json = json;
this.dracoLoader = dracoLoader;
this.dracoLoader.preload();
}
decodePrimitive(primitive, parser) {
const json = this.json;
const dracoLoader = this.dracoLoader;
const bufferViewIndex = primitive.extensions[this.name].bufferView;
const gltfAttributeMap = primitive.extensions[this.name].attributes;
const threeAttributeMap = {};
const attributeNormalizedMap = {};
const attributeTypeMap = {};
for (const attributeName in gltfAttributeMap) {
const threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
threeAttributeMap[threeAttributeName] = gltfAttributeMap[attributeName];
}
for (const attributeName in primitive.attributes) {
const threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
if (gltfAttributeMap[attributeName] !== undefined) {
const accessorDef = json.accessors[primitive.attributes[attributeName]];
const componentType = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
attributeTypeMap[threeAttributeName] = componentType.name;
attributeNormalizedMap[threeAttributeName] = accessorDef.normalized === true;
}
}
return parser.getDependency('bufferView', bufferViewIndex).then(function (bufferView) {
return new Promise(function (resolve) {
dracoLoader.decodeDracoFile(bufferView, function (geometry) {
for (const attributeName in geometry.attributes) {
const attribute = geometry.attributes[attributeName];
const normalized = attributeNormalizedMap[attributeName];
if (normalized !== undefined)
attribute.normalized = normalized;
}
resolve(geometry);
}, threeAttributeMap, attributeTypeMap);
});
});
}
}
class GLTFTextureTransformExtension {
constructor() {
this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM;
}
extendTexture(texture, transform) {
if (transform.texCoord !== undefined) {
console.warn('THREE.GLTFLoader: Custom UV sets in "' + this.name + '" extension not yet supported.');
}
if (transform.offset === undefined && transform.rotation === undefined && transform.scale === undefined) {
return texture;
}
texture = texture.clone();
if (transform.offset !== undefined) {
texture.offset.fromArray(transform.offset);
}
if (transform.rotation !== undefined) {
texture.rotation = transform.rotation;
}
if (transform.scale !== undefined) {
texture.repeat.fromArray(transform.scale);
}
texture.needsUpdate = true;
return texture;
}
}
class GLTFMeshQuantizationExtension {
constructor() {
this.name = EXTENSIONS.KHR_MESH_QUANTIZATION;
}
}
class GLTFCubicSplineInterpolant extends three.Interpolant {
constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
super(parameterPositions, sampleValues, sampleSize, resultBuffer);
this.beforeStart_ = this.copySampleValue_;
this.afterEnd_ = this.copySampleValue_;
}
copySampleValue_(index) {
const result = this.resultBuffer, values = this.sampleValues, valueSize = this.valueSize, offset = index * valueSize * 3 + valueSize;
for (let i = 0; i !== valueSize; i++) {
result[i] = values[offset + i];
}
return result;
}
interpolate_(i1, t0, t, t1) {
const result = this.resultBuffer;
const values = this.sampleValues;
const stride = this.valueSize;
const stride2 = stride * 2;
const stride3 = stride * 3;
const td = t1 - t0;
const p = (t - t0) / td;
const pp = p * p;
const ppp = pp * p;
const offset1 = i1 * stride3;
const offset0 = offset1 - stride3;
const s2 = -2 * ppp + 3 * pp;
const s3 = ppp - pp;
const s0 = 1 - s2;
const s1 = s3 - pp + p;
for (let i = 0; i !== stride; i++) {
const p0 = values[offset0 + i + stride];
const m0 = values[offset0 + i + stride2] * td;
const p1 = values[offset1 + i + stride];
const m1 = values[offset1 + i] * td;
result[i] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1;
}
return result;
}
;
}
const _q = new three.Quaternion();
class GLTFCubicSplineQuaternionInterpolant extends GLTFCubicSplineInterpolant {
interpolate_(i1, t0, t, t1) {
const result = super.interpolate_(i1, t0, t, t1);
_q.fromArray(result).normalize().toArray(result);
return result;
}
}
const WEBGL_CONSTANTS$1 = {
FLOAT: 5126,
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
};
const WEBGL_COMPONENT_TYPES = {
5120: Int8Array,
5121: Uint8Array,
5122: Int16Array,
5123: Uint16Array,
5125: Uint32Array,
5126: Float32Array
};
const WEBGL_FILTERS = {
9728: three.NearestFilter,
9729: three.LinearFilter,
9984: three.NearestMipmapNearestFilter,
9985: three.LinearMipmapNearestFilter,
9986: three.NearestMipmapLinearFilter,
9987: three.LinearMipmapLinearFilter
};
const WEBGL_WRAPPINGS = {
33071: three.ClampToEdgeWrapping,
33648: three.MirroredRepeatWrapping,
10497: three.RepeatWrapping
};
const WEBGL_TYPE_SIZES = {
'SCALAR': 1,
'VEC2': 2,
'VEC3': 3,
'VEC4': 4,
'MAT2': 4,
'MAT3': 9,
'MAT4': 16
};
const ATTRIBUTES = {
POSITION: 'position',
NORMAL: 'normal',
TANGENT: 'tangent',
TEXCOORD_0: 'uv',
TEXCOORD_1: 'uv2',
COLOR_0: 'color',
WEIGHTS_0: 'skinWeight',
JOINTS_0: 'skinIndex',
};
const PATH_PROPERTIES$1 = {
scale: 'scale',
translation: 'position',
rotation: 'quaternion',
weights: 'morphTargetInfluences'
};
const INTERPOLATION = {
CUBICSPLINE: undefined,
LINEAR: three.InterpolateLinear,
STEP: three.InterpolateDiscrete
};
const ALPHA_MODES = {
OPAQUE: 'OPAQUE',
MASK: 'MASK',
BLEND: 'BLEND'
};
function createDefaultMaterial(cache) {
if (cache['DefaultMaterial'] === undefined) {
cache['DefaultMaterial'] = new three.MeshStandardMaterial({
color: 0xFFFFFF,
emissive: 0x000000,
metalness: 1,
roughness: 1,
transparent: false,
depthTest: true,
side: three.FrontSide
});
}
return cache['DefaultMaterial'];
}
function addUnknownExtensionsToUserData(knownExtensions, object, objectDef) {
for (const name in objectDef.extensions) {
if (knownExtensions[name] === undefined) {
object.userData.gltfExtensions = object.userData.gltfExtensions || {};
object.userData.gltfExtensions[name] = objectDef.extensions[name];
}
}
}
function assignExtrasToUserData(object, gltfDef) {
if (gltfDef.extras !== undefined) {
if (typeof gltfDef.extras === 'object') {
Object.assign(object.userData, gltfDef.extras);
}
else {
console.warn('THREE.GLTFLoader: Ignoring primitive type .extras, ' + gltfDef.extras);
}
}
}
function addMorphTargets(geometry, targets, parser) {
let hasMorphPosition = false;
let hasMorphNormal = false;
for (let i = 0, il = targets.length; i < il; i++) {
const target = targets[i];
if (target.POSITION !== undefined)
hasMorphPosition = true;
if (target.NORMAL !== undefined)
hasMorphNormal = true;
if (hasMorphPosition && hasMorphNormal)
break;
}
if (!hasMorphPosition && !hasMorphNormal)
return Promise.resolve(geometry);
const pendingPositionAccessors = [];
const pendingNormalAccessors = [];
for (let i = 0, il = targets.length; i < il; i++) {
const target = targets[i];
if (hasMorphPosition) {
const pendingAccessor = target.POSITION !== undefined
? parser.getDependency('accessor', target.POSITION)
: geometry.attributes.position;
pendingPositionAccessors.push(pendingAccessor);
}
if (hasMorphNormal) {
const pendingAccessor = target.NORMAL !== undefined
? parser.getDependency('accessor', target.NORMAL)
: geometry.attributes.normal;
pendingNormalAccessors.push(pendingAccessor);
}
}
return Promise.all([
Promise.all(pendingPositionAccessors),
Promise.all(pendingNormalAccessors)
]).then(accessors => {
const morphPositions = accessors[0];
const morphNormals = accessors[1];
if (hasMorphPosition)
geometry.morphAttributes.position = morphPositions;
if (hasMorphNormal)
geometry.morphAttributes.normal = morphNormals;
geometry.morphTargetsRelative = true;
return geometry;
});
}
function updateMorphTargets(mesh, meshDef) {
mesh.updateMorphTargets();
if (meshDef.weights !== undefined) {
for (let i = 0, il = meshDef.weights.length; i < il; i++) {
mesh.morphTargetInfluences[i] = meshDef.weights[i];
}
}
if (meshDef.extras && Array.isArray(meshDef.extras.targetNames)) {
const targetNames = meshDef.extras.targetNames;
if (mesh.morphTargetInfluences.length === targetNames.length) {
mesh.morphTargetDictionary = {};
for (let i = 0, il = targetNames.length; i < il; i++) {
mesh.morphTargetDictionary[targetNames[i]