itowns
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A JS/WebGL framework for 3D geospatial data visualization
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JavaScript
"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.GLTFLoader = void 0;
var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));
var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
var _get2 = _interopRequireDefault(require("@babel/runtime/helpers/get"));
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));
var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));
var _three = require("three");
function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }
function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
var GLTFLoader = /*#__PURE__*/function (_Loader) {
(0, _inherits2["default"])(GLTFLoader, _Loader);
var _super = _createSuper(GLTFLoader);
function GLTFLoader(manager) {
var _this;
(0, _classCallCheck2["default"])(this, GLTFLoader);
_this = _super.call(this, manager);
_this.dracoLoader = null;
_this.ktx2Loader = null;
_this.meshoptDecoder = null;
_this.pluginCallbacks = [];
_this.register(function (parser) {
return new GLTFMaterialsClearcoatExtension(parser);
});
_this.register(function (parser) {
return new GLTFTextureBasisUExtension(parser);
});
_this.register(function (parser) {
return new GLTFTextureWebPExtension(parser);
});
_this.register(function (parser) {
return new GLTFMaterialsTransmissionExtension(parser);
});
_this.register(function (parser) {
return new GLTFMaterialsVolumeExtension(parser);
});
_this.register(function (parser) {
return new GLTFMaterialsIorExtension(parser);
});
_this.register(function (parser) {
return new GLTFMaterialsSpecularExtension(parser);
});
_this.register(function (parser) {
return new GLTFLightsExtension(parser);
});
_this.register(function (parser) {
return new GLTFMeshoptCompression(parser);
});
return _this;
}
(0, _createClass2["default"])(GLTFLoader, [{
key: "load",
value: function load(url, onLoad, onProgress, onError) {
var scope = this;
var resourcePath;
if (this.resourcePath !== '') {
resourcePath = this.resourcePath;
} else if (this.path !== '') {
resourcePath = this.path;
} else {
resourcePath = _three.LoaderUtils.extractUrlBase(url);
} // Tells the LoadingManager to track an extra item, which resolves after
// the model is fully loaded. This means the count of items loaded will
// be incorrect, but ensures manager.onLoad() does not fire early.
this.manager.itemStart(url);
var _onError = function (e) {
if (onError) {
onError(e);
} else {
console.error(e);
}
scope.manager.itemError(url);
scope.manager.itemEnd(url);
};
var loader = new _three.FileLoader(this.manager);
loader.setPath(this.path);
loader.setResponseType('arraybuffer');
loader.setRequestHeader(this.requestHeader);
loader.setWithCredentials(this.withCredentials);
loader.load(url, function (data) {
try {
scope.parse(data, resourcePath, function (gltf) {
onLoad(gltf);
scope.manager.itemEnd(url);
}, _onError);
} catch (e) {
_onError(e);
}
}, onProgress, _onError);
}
}, {
key: "setDRACOLoader",
value: function setDRACOLoader(dracoLoader) {
this.dracoLoader = dracoLoader;
return this;
}
}, {
key: "setDDSLoader",
value: function setDDSLoader() {
throw new Error('THREE.GLTFLoader: "MSFT_texture_dds" no longer supported. Please update to "KHR_texture_basisu".');
}
}, {
key: "setKTX2Loader",
value: function setKTX2Loader(ktx2Loader) {
this.ktx2Loader = ktx2Loader;
return this;
}
}, {
key: "setMeshoptDecoder",
value: function setMeshoptDecoder(meshoptDecoder) {
this.meshoptDecoder = meshoptDecoder;
return this;
}
}, {
key: "register",
value: function register(callback) {
if (this.pluginCallbacks.indexOf(callback) === -1) {
this.pluginCallbacks.push(callback);
}
return this;
}
}, {
key: "unregister",
value: function unregister(callback) {
if (this.pluginCallbacks.indexOf(callback) !== -1) {
this.pluginCallbacks.splice(this.pluginCallbacks.indexOf(callback), 1);
}
return this;
}
}, {
key: "parse",
value: function parse(data, path, onLoad, onError) {
var content;
var extensions = {};
var plugins = {};
if (typeof data === 'string') {
content = data;
} else {
var magic = _three.LoaderUtils.decodeText(new Uint8Array(data, 0, 4));
if (magic === BINARY_EXTENSION_HEADER_MAGIC) {
try {
extensions[EXTENSIONS.KHR_BINARY_GLTF] = new GLTFBinaryExtension(data);
} catch (error) {
if (onError) onError(error);
return;
}
content = extensions[EXTENSIONS.KHR_BINARY_GLTF].content;
} else {
content = _three.LoaderUtils.decodeText(new Uint8Array(data));
}
}
var json = JSON.parse(content);
if (json.asset === undefined || json.asset.version[0] < 2) {
if (onError) onError(new Error('THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported.'));
return;
}
var 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 (var i = 0; i < this.pluginCallbacks.length; i++) {
var plugin = this.pluginCallbacks[i](parser);
plugins[plugin.name] = plugin; // Workaround to avoid determining as unknown extension
// in addUnknownExtensionsToUserData().
// Remove this workaround if we move all the existing
// extension handlers to plugin system
extensions[plugin.name] = true;
}
if (json.extensionsUsed) {
for (var _i = 0; _i < json.extensionsUsed.length; ++_i) {
var extensionName = json.extensionsUsed[_i];
var extensionsRequired = json.extensionsRequired || [];
switch (extensionName) {
case EXTENSIONS.KHR_MATERIALS_UNLIT:
extensions[extensionName] = new GLTFMaterialsUnlitExtension();
break;
case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:
extensions[extensionName] = new GLTFMaterialsPbrSpecularGlossinessExtension();
break;
case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
extensions[extensionName] = new GLTFDracoMeshCompressionExtension(json, this.dracoLoader);
break;
case EXTENSIONS.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);
}
}]);
return GLTFLoader;
}(_three.Loader);
/* GLTFREGISTRY */
exports.GLTFLoader = GLTFLoader;
function GLTFRegistry() {
var objects = {};
return {
get: function get(key) {
return objects[key];
},
add: function add(key, object) {
objects[key] = object;
},
remove: function remove(key) {
delete objects[key];
},
removeAll: function removeAll() {
objects = {};
}
};
}
/*********************************/
/********** EXTENSIONS ***********/
/*********************************/
var EXTENSIONS = {
KHR_BINARY_GLTF: 'KHR_binary_glTF',
KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',
KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',
KHR_MATERIALS_CLEARCOAT: 'KHR_materials_clearcoat',
KHR_MATERIALS_IOR: 'KHR_materials_ior',
KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
KHR_MATERIALS_SPECULAR: 'KHR_materials_specular',
KHR_MATERIALS_TRANSMISSION: 'KHR_materials_transmission',
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',
EXT_TEXTURE_WEBP: 'EXT_texture_webp',
EXT_MESHOPT_COMPRESSION: 'EXT_meshopt_compression'
};
/**
* Punctual Lights Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual
*/
var GLTFLightsExtension = /*#__PURE__*/function () {
function GLTFLightsExtension(parser) {
(0, _classCallCheck2["default"])(this, GLTFLightsExtension);
this.parser = parser;
this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL; // Object3D instance caches
this.cache = {
refs: {},
uses: {}
};
}
(0, _createClass2["default"])(GLTFLightsExtension, [{
key: "_markDefs",
value: function _markDefs() {
var parser = this.parser;
var nodeDefs = this.parser.json.nodes || [];
for (var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex++) {
var nodeDef = nodeDefs[nodeIndex];
if (nodeDef.extensions && nodeDef.extensions[this.name] && nodeDef.extensions[this.name].light !== undefined) {
parser._addNodeRef(this.cache, nodeDef.extensions[this.name].light);
}
}
}
}, {
key: "_loadLight",
value: function _loadLight(lightIndex) {
var parser = this.parser;
var cacheKey = 'light:' + lightIndex;
var dependency = parser.cache.get(cacheKey);
if (dependency) return dependency;
var json = parser.json;
var extensions = json.extensions && json.extensions[this.name] || {};
var lightDefs = extensions.lights || [];
var lightDef = lightDefs[lightIndex];
var lightNode;
var color = new _three.Color(0xffffff);
if (lightDef.color !== undefined) color.fromArray(lightDef.color);
var range = lightDef.range !== undefined ? lightDef.range : 0;
switch (lightDef.type) {
case 'directional':
lightNode = new _three.DirectionalLight(color);
lightNode.target.position.set(0, 0, -1);
lightNode.add(lightNode.target);
break;
case 'point':
lightNode = new _three.PointLight(color);
lightNode.distance = range;
break;
case 'spot':
lightNode = new _three.SpotLight(color);
lightNode.distance = range; // Handle spotlight properties.
lightDef.spot = lightDef.spot || {};
lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle : 0;
lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0;
lightNode.angle = lightDef.spot.outerConeAngle;
lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
lightNode.target.position.set(0, 0, -1);
lightNode.add(lightNode.target);
break;
default:
throw new Error('THREE.GLTFLoader: Unexpected light type: ' + lightDef.type);
} // Some lights (e.g. spot) default to a position other than the origin. Reset the position
// here, because node-level parsing will only override position if explicitly specified.
lightNode.position.set(0, 0, 0);
lightNode.decay = 2;
if (lightDef.intensity !== undefined) lightNode.intensity = lightDef.intensity;
lightNode.name = parser.createUniqueName(lightDef.name || 'light_' + lightIndex);
dependency = Promise.resolve(lightNode);
parser.cache.add(cacheKey, dependency);
return dependency;
}
}, {
key: "createNodeAttachment",
value: function createNodeAttachment(nodeIndex) {
var self = this;
var parser = this.parser;
var json = parser.json;
var nodeDef = json.nodes[nodeIndex];
var lightDef = nodeDef.extensions && nodeDef.extensions[this.name] || {};
var lightIndex = lightDef.light;
if (lightIndex === undefined) return null;
return this._loadLight(lightIndex).then(function (light) {
return parser._getNodeRef(self.cache, lightIndex, light);
});
}
}]);
return GLTFLightsExtension;
}();
/**
* Unlit Materials Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_unlit
*/
var GLTFMaterialsUnlitExtension = /*#__PURE__*/function () {
function GLTFMaterialsUnlitExtension() {
(0, _classCallCheck2["default"])(this, GLTFMaterialsUnlitExtension);
this.name = EXTENSIONS.KHR_MATERIALS_UNLIT;
}
(0, _createClass2["default"])(GLTFMaterialsUnlitExtension, [{
key: "getMaterialType",
value: function getMaterialType() {
return _three.MeshBasicMaterial;
}
}, {
key: "extendParams",
value: function extendParams(materialParams, materialDef, parser) {
var pending = [];
materialParams.color = new _three.Color(1.0, 1.0, 1.0);
materialParams.opacity = 1.0;
var metallicRoughness = materialDef.pbrMetallicRoughness;
if (metallicRoughness) {
if (Array.isArray(metallicRoughness.baseColorFactor)) {
var array = metallicRoughness.baseColorFactor;
materialParams.color.fromArray(array);
materialParams.opacity = array[3];
}
if (metallicRoughness.baseColorTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'map', metallicRoughness.baseColorTexture));
}
}
return Promise.all(pending);
}
}]);
return GLTFMaterialsUnlitExtension;
}();
/**
* Clearcoat Materials Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_clearcoat
*/
var GLTFMaterialsClearcoatExtension = /*#__PURE__*/function () {
function GLTFMaterialsClearcoatExtension(parser) {
(0, _classCallCheck2["default"])(this, GLTFMaterialsClearcoatExtension);
this.parser = parser;
this.name = EXTENSIONS.KHR_MATERIALS_CLEARCOAT;
}
(0, _createClass2["default"])(GLTFMaterialsClearcoatExtension, [{
key: "getMaterialType",
value: function getMaterialType(materialIndex) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
return _three.MeshPhysicalMaterial;
}
}, {
key: "extendMaterialParams",
value: function extendMaterialParams(materialIndex, materialParams) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
var pending = [];
var extension = materialDef.extensions[this.name];
if (extension.clearcoatFactor !== undefined) {
materialParams.clearcoat = extension.clearcoatFactor;
}
if (extension.clearcoatTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'clearcoatMap', extension.clearcoatTexture));
}
if (extension.clearcoatRoughnessFactor !== undefined) {
materialParams.clearcoatRoughness = extension.clearcoatRoughnessFactor;
}
if (extension.clearcoatRoughnessTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'clearcoatRoughnessMap', extension.clearcoatRoughnessTexture));
}
if (extension.clearcoatNormalTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'clearcoatNormalMap', extension.clearcoatNormalTexture));
if (extension.clearcoatNormalTexture.scale !== undefined) {
var scale = extension.clearcoatNormalTexture.scale; // https://github.com/mrdoob/three.js/issues/11438#issuecomment-507003995
materialParams.clearcoatNormalScale = new _three.Vector2(scale, -scale);
}
}
return Promise.all(pending);
}
}]);
return GLTFMaterialsClearcoatExtension;
}();
/**
* Transmission Materials Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_transmission
* Draft: https://github.com/KhronosGroup/glTF/pull/1698
*/
var GLTFMaterialsTransmissionExtension = /*#__PURE__*/function () {
function GLTFMaterialsTransmissionExtension(parser) {
(0, _classCallCheck2["default"])(this, GLTFMaterialsTransmissionExtension);
this.parser = parser;
this.name = EXTENSIONS.KHR_MATERIALS_TRANSMISSION;
}
(0, _createClass2["default"])(GLTFMaterialsTransmissionExtension, [{
key: "getMaterialType",
value: function getMaterialType(materialIndex) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
return _three.MeshPhysicalMaterial;
}
}, {
key: "extendMaterialParams",
value: function extendMaterialParams(materialIndex, materialParams) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
var pending = [];
var extension = materialDef.extensions[this.name];
if (extension.transmissionFactor !== undefined) {
materialParams.transmission = extension.transmissionFactor;
}
if (extension.transmissionTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'transmissionMap', extension.transmissionTexture));
}
return Promise.all(pending);
}
}]);
return GLTFMaterialsTransmissionExtension;
}();
/**
* Materials Volume Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_volume
*/
var GLTFMaterialsVolumeExtension = /*#__PURE__*/function () {
function GLTFMaterialsVolumeExtension(parser) {
(0, _classCallCheck2["default"])(this, GLTFMaterialsVolumeExtension);
this.parser = parser;
this.name = EXTENSIONS.KHR_MATERIALS_VOLUME;
}
(0, _createClass2["default"])(GLTFMaterialsVolumeExtension, [{
key: "getMaterialType",
value: function getMaterialType(materialIndex) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
return _three.MeshPhysicalMaterial;
}
}, {
key: "extendMaterialParams",
value: function extendMaterialParams(materialIndex, materialParams) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
var pending = [];
var extension = materialDef.extensions[this.name];
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;
var colorArray = extension.attenuationColor || [1, 1, 1];
materialParams.attenuationTint = new _three.Color(colorArray[0], colorArray[1], colorArray[2]);
return Promise.all(pending);
}
}]);
return GLTFMaterialsVolumeExtension;
}();
/**
* Materials ior Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_ior
*/
var GLTFMaterialsIorExtension = /*#__PURE__*/function () {
function GLTFMaterialsIorExtension(parser) {
(0, _classCallCheck2["default"])(this, GLTFMaterialsIorExtension);
this.parser = parser;
this.name = EXTENSIONS.KHR_MATERIALS_IOR;
}
(0, _createClass2["default"])(GLTFMaterialsIorExtension, [{
key: "getMaterialType",
value: function getMaterialType(materialIndex) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
return _three.MeshPhysicalMaterial;
}
}, {
key: "extendMaterialParams",
value: function extendMaterialParams(materialIndex, materialParams) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
var extension = materialDef.extensions[this.name];
materialParams.ior = extension.ior !== undefined ? extension.ior : 1.5;
return Promise.resolve();
}
}]);
return GLTFMaterialsIorExtension;
}();
/**
* Materials specular Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_specular
*/
var GLTFMaterialsSpecularExtension = /*#__PURE__*/function () {
function GLTFMaterialsSpecularExtension(parser) {
(0, _classCallCheck2["default"])(this, GLTFMaterialsSpecularExtension);
this.parser = parser;
this.name = EXTENSIONS.KHR_MATERIALS_SPECULAR;
}
(0, _createClass2["default"])(GLTFMaterialsSpecularExtension, [{
key: "getMaterialType",
value: function getMaterialType(materialIndex) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
return _three.MeshPhysicalMaterial;
}
}, {
key: "extendMaterialParams",
value: function extendMaterialParams(materialIndex, materialParams) {
var parser = this.parser;
var materialDef = parser.json.materials[materialIndex];
if (!materialDef.extensions || !materialDef.extensions[this.name]) {
return Promise.resolve();
}
var pending = [];
var extension = materialDef.extensions[this.name];
materialParams.specularIntensity = extension.specularFactor !== undefined ? extension.specularFactor : 1.0;
if (extension.specularTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'specularIntensityMap', extension.specularTexture));
}
var colorArray = extension.specularColorFactor || [1, 1, 1];
materialParams.specularTint = new _three.Color(colorArray[0], colorArray[1], colorArray[2]);
if (extension.specularColorTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'specularTintMap', extension.specularColorTexture).then(function (texture) {
texture.encoding = _three.sRGBEncoding;
}));
}
return Promise.all(pending);
}
}]);
return GLTFMaterialsSpecularExtension;
}();
/**
* BasisU Texture Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_basisu
*/
var GLTFTextureBasisUExtension = /*#__PURE__*/function () {
function GLTFTextureBasisUExtension(parser) {
(0, _classCallCheck2["default"])(this, GLTFTextureBasisUExtension);
this.parser = parser;
this.name = EXTENSIONS.KHR_TEXTURE_BASISU;
}
(0, _createClass2["default"])(GLTFTextureBasisUExtension, [{
key: "loadTexture",
value: function loadTexture(textureIndex) {
var parser = this.parser;
var json = parser.json;
var textureDef = json.textures[textureIndex];
if (!textureDef.extensions || !textureDef.extensions[this.name]) {
return null;
}
var extension = textureDef.extensions[this.name];
var source = json.images[extension.source];
var loader = parser.options.ktx2Loader;
if (!loader) {
if (json.extensionsRequired && json.extensionsRequired.indexOf(this.name) >= 0) {
throw new Error('THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures');
} else {
// Assumes that the extension is optional and that a fallback texture is present
return null;
}
}
return parser.loadTextureImage(textureIndex, source, loader);
}
}]);
return GLTFTextureBasisUExtension;
}();
/**
* WebP Texture Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_texture_webp
*/
var GLTFTextureWebPExtension = /*#__PURE__*/function () {
function GLTFTextureWebPExtension(parser) {
(0, _classCallCheck2["default"])(this, GLTFTextureWebPExtension);
this.parser = parser;
this.name = EXTENSIONS.EXT_TEXTURE_WEBP;
this.isSupported = null;
}
(0, _createClass2["default"])(GLTFTextureWebPExtension, [{
key: "loadTexture",
value: function loadTexture(textureIndex) {
var name = this.name;
var parser = this.parser;
var json = parser.json;
var textureDef = json.textures[textureIndex];
if (!textureDef.extensions || !textureDef.extensions[name]) {
return null;
}
var extension = textureDef.extensions[name];
var source = json.images[extension.source];
var loader = parser.textureLoader;
if (source.uri) {
var handler = parser.options.manager.getHandler(source.uri);
if (handler !== null) loader = handler;
}
return this.detectSupport().then(function (isSupported) {
if (isSupported) return parser.loadTextureImage(textureIndex, source, loader);
if (json.extensionsRequired && json.extensionsRequired.indexOf(name) >= 0) {
throw new Error('THREE.GLTFLoader: WebP required by asset but unsupported.');
} // Fall back to PNG or JPEG.
return parser.loadTexture(textureIndex);
});
}
}, {
key: "detectSupport",
value: function detectSupport() {
if (!this.isSupported) {
this.isSupported = new Promise(function (resolve) {
var image = new Image(); // Lossy test image. Support for lossy images doesn't guarantee support for all
// WebP images, unfortunately.
image.src = 'data:image/webp;base64,UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA';
image.onload = image.onerror = function () {
resolve(image.height === 1);
};
});
}
return this.isSupported;
}
}]);
return GLTFTextureWebPExtension;
}();
/**
* meshopt BufferView Compression Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_meshopt_compression
*/
var GLTFMeshoptCompression = /*#__PURE__*/function () {
function GLTFMeshoptCompression(parser) {
(0, _classCallCheck2["default"])(this, GLTFMeshoptCompression);
this.name = EXTENSIONS.EXT_MESHOPT_COMPRESSION;
this.parser = parser;
}
(0, _createClass2["default"])(GLTFMeshoptCompression, [{
key: "loadBufferView",
value: function loadBufferView(index) {
var json = this.parser.json;
var bufferView = json.bufferViews[index];
if (bufferView.extensions && bufferView.extensions[this.name]) {
var extensionDef = bufferView.extensions[this.name];
var buffer = this.parser.getDependency('buffer', extensionDef.buffer);
var 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 {
// Assumes that the extension is optional and that fallback buffer data is present
return null;
}
}
return Promise.all([buffer, decoder.ready]).then(function (res) {
var byteOffset = extensionDef.byteOffset || 0;
var byteLength = extensionDef.byteLength || 0;
var count = extensionDef.count;
var stride = extensionDef.byteStride;
var result = new ArrayBuffer(count * stride);
var source = new Uint8Array(res[0], byteOffset, byteLength);
decoder.decodeGltfBuffer(new Uint8Array(result), count, stride, source, extensionDef.mode, extensionDef.filter);
return result;
});
} else {
return null;
}
}
}]);
return GLTFMeshoptCompression;
}();
/* BINARY EXTENSION */
var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
var BINARY_EXTENSION_HEADER_LENGTH = 12;
var BINARY_EXTENSION_CHUNK_TYPES = {
JSON: 0x4E4F534A,
BIN: 0x004E4942
};
var GLTFBinaryExtension = function GLTFBinaryExtension(data) {
(0, _classCallCheck2["default"])(this, GLTFBinaryExtension);
this.name = EXTENSIONS.KHR_BINARY_GLTF;
this.content = null;
this.body = null;
var headerView = new DataView(data, 0, BINARY_EXTENSION_HEADER_LENGTH);
this.header = {
magic: _three.LoaderUtils.decodeText(new Uint8Array(data.slice(0, 4))),
version: headerView.getUint32(4, true),
length: headerView.getUint32(8, true)
};
if (this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC) {
throw new Error('THREE.GLTFLoader: Unsupported glTF-Binary header.');
} else if (this.header.version < 2.0) {
throw new Error('THREE.GLTFLoader: Legacy binary file detected.');
}
var chunkContentsLength = this.header.length - BINARY_EXTENSION_HEADER_LENGTH;
var chunkView = new DataView(data, BINARY_EXTENSION_HEADER_LENGTH);
var chunkIndex = 0;
while (chunkIndex < chunkContentsLength) {
var chunkLength = chunkView.getUint32(chunkIndex, true);
chunkIndex += 4;
var chunkType = chunkView.getUint32(chunkIndex, true);
chunkIndex += 4;
if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON) {
var contentArray = new Uint8Array(data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength);
this.content = _three.LoaderUtils.decodeText(contentArray);
} else if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN) {
var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
this.body = data.slice(byteOffset, byteOffset + chunkLength);
} // Clients must ignore chunks with unknown types.
chunkIndex += chunkLength;
}
if (this.content === null) {
throw new Error('THREE.GLTFLoader: JSON content not found.');
}
};
/**
* DRACO Mesh Compression Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_draco_mesh_compression
*/
var GLTFDracoMeshCompressionExtension = /*#__PURE__*/function () {
function GLTFDracoMeshCompressionExtension(json, dracoLoader) {
(0, _classCallCheck2["default"])(this, GLTFDracoMeshCompressionExtension);
if (!dracoLoader) {
throw new Error('THREE.GLTFLoader: No DRACOLoader instance provided.');
}
this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
this.json = json;
this.dracoLoader = dracoLoader;
this.dracoLoader.preload();
}
(0, _createClass2["default"])(GLTFDracoMeshCompressionExtension, [{
key: "decodePrimitive",
value: function decodePrimitive(primitive, parser) {
var json = this.json;
var dracoLoader = this.dracoLoader;
var bufferViewIndex = primitive.extensions[this.name].bufferView;
var gltfAttributeMap = primitive.extensions[this.name].attributes;
var threeAttributeMap = {};
var attributeNormalizedMap = {};
var attributeTypeMap = {};
for (var attributeName in gltfAttributeMap) {
var threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
threeAttributeMap[threeAttributeName] = gltfAttributeMap[attributeName];
}
for (var _attributeName in primitive.attributes) {
var _threeAttributeName = ATTRIBUTES[_attributeName] || _attributeName.toLowerCase();
if (gltfAttributeMap[_attributeName] !== undefined) {
var accessorDef = json.accessors[primitive.attributes[_attributeName]];
var componentType = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
attributeTypeMap[_threeAttributeName] = componentType;
attributeNormalizedMap[_threeAttributeName] = accessorDef.normalized === true;
}
}
return parser.getDependency('bufferView', bufferViewIndex).then(function (bufferView) {
return new Promise(function (resolve) {
dracoLoader.decodeDracoFile(bufferView, function (geometry) {
for (var _attributeName2 in geometry.attributes) {
var attribute = geometry.attributes[_attributeName2];
var normalized = attributeNormalizedMap[_attributeName2];
if (normalized !== undefined) attribute.normalized = normalized;
}
resolve(geometry);
}, threeAttributeMap, attributeTypeMap);
});
});
}
}]);
return GLTFDracoMeshCompressionExtension;
}();
/**
* Texture Transform Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_transform
*/
var GLTFTextureTransformExtension = /*#__PURE__*/function () {
function GLTFTextureTransformExtension() {
(0, _classCallCheck2["default"])(this, GLTFTextureTransformExtension);
this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM;
}
(0, _createClass2["default"])(GLTFTextureTransformExtension, [{
key: "extendTexture",
value: function 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) {
// See https://github.com/mrdoob/three.js/issues/21819.
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;
}
}]);
return GLTFTextureTransformExtension;
}();
/**
* Specular-Glossiness Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness
*/
/**
* A sub class of StandardMaterial with some of the functionality
* changed via the `onBeforeCompile` callback
* @pailhead
*/
var GLTFMeshStandardSGMaterial = /*#__PURE__*/function (_MeshStandardMaterial) {
(0, _inherits2["default"])(GLTFMeshStandardSGMaterial, _MeshStandardMaterial);
var _super2 = _createSuper(GLTFMeshStandardSGMaterial);
function GLTFMeshStandardSGMaterial(params) {
var _this2;
(0, _classCallCheck2["default"])(this, GLTFMeshStandardSGMaterial);
_this2 = _super2.call(this);
_this2.isGLTFSpecularGlossinessMaterial = true; //various chunks that need replacing
var specularMapParsFragmentChunk = ['#ifdef USE_SPECULARMAP', ' uniform sampler2D specularMap;', '#endif'].join('\n');
var glossinessMapParsFragmentChunk = ['#ifdef USE_GLOSSINESSMAP', ' uniform sampler2D glossinessMap;', '#endif'].join('\n');
var specularMapFragmentChunk = ['vec3 specularFactor = specular;', '#ifdef USE_SPECULARMAP', ' vec4 texelSpecular = texture2D( specularMap, vUv );', ' texelSpecular = sRGBToLinear( texelSpecular );', ' // reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture', ' specularFactor *= texelSpecular.rgb;', '#endif'].join('\n');
var glossinessMapFragmentChunk = ['float glossinessFactor = glossiness;', '#ifdef USE_GLOSSINESSMAP', ' vec4 texelGlossiness = texture2D( glossinessMap, vUv );', ' // reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture', ' glossinessFactor *= texelGlossiness.a;', '#endif'].join('\n');
var lightPhysicalFragmentChunk = ['PhysicalMaterial material;', 'material.diffuseColor = diffuseColor.rgb * ( 1. - max( specularFactor.r, max( specularFactor.g, specularFactor.b ) ) );', 'vec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );', 'float geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );', 'material.specularRoughness = max( 1.0 - glossinessFactor, 0.0525 ); // 0.0525 corresponds to the base mip of a 256 cubemap.', 'material.specularRoughness += geometryRoughness;', 'material.specularRoughness = min( material.specularRoughness, 1.0 );', 'material.specularColor = specularFactor;'].join('\n');
var uniforms = {
specular: {
value: new _three.Color().setHex(0xffffff)
},
glossiness: {
value: 1
},
specularMap: {
value: null
},
glossinessMap: {
value: null
}
};
_this2._extraUniforms = uniforms;
_this2.onBeforeCompile = function (shader) {
for (var uniformName in uniforms) {
shader.uniforms[uniformName] = uniforms[uniformName];
}
shader.fragmentShader = shader.fragmentShader.replace('uniform float roughness;', 'uniform vec3 specular;').replace('uniform float metalness;', 'uniform float glossiness;').replace('#include <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);
};
Object.defineProperties((0, _assertThisInitialized2["default"])(_this2), {
specular: {
get: function get() {
return uniforms.specular.value;
},
set: function set(v) {
uniforms.specular.value = v;
}
},
specularMap: {
get: function get() {
return uniforms.specularMap.value;
},
set: function set(v) {
uniforms.specularMap.value = v;
if (v) {
this.defines.USE_SPECULARMAP = ''; // USE_UV is set by the renderer for specular maps
} else {
delete this.defines.USE_SPECULARMAP;
}
}
},
glossiness: {
get: function get() {
return uniforms.glossiness.value;
},
set: function set(v) {
uniforms.glossiness.value = v;
}
},
glossinessMap: {
get: function get() {
return uniforms.glossinessMap.value;
},
set: function set(v) {
uniforms.glossinessMap.value = v;
if (v) {
this.defines.USE_GLOSSINESSMAP = '';
this.defines.USE_UV = '';
} else {
delete this.defines.USE_GLOSSINESSMAP;
delete this.defines.USE_UV;
}
}
}
});
delete _this2.metalness;
delete _this2.roughness;
delete _this2.metalnessMap;
delete _this2.roughnessMap;
_this2.setValues(params);
return _this2;
}
(0, _createClass2["default"])(GLTFMeshStandardSGMaterial, [{
key: "copy",
value: function copy(source) {
(0, _get2["default"])((0, _getPrototypeOf2["default"])(GLTFMeshStandardSGMaterial.prototype), "copy", this).call(this, source);
this.specularMap = source.specularMap;
this.specular.copy(source.specular);
this.glossinessMap = source.glossinessMap;
this.glossiness = source.glossiness;
delete this.metalness;
delete this.roughness;
delete this.metalnessMap;
delete this.roughnessMap;
return this;
}
}]);
return GLTFMeshStandardSGMaterial;
}(_three.MeshStandardMaterial);
var GLTFMaterialsPbrSpecularGlossinessExtension = /*#__PURE__*/function () {
function GLTFMaterialsPbrSpecularGlossinessExtension() {
(0, _classCallCheck2["default"])(this, GLTFMaterialsPbrSpecularGlossinessExtension);
this.name = EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS;
this.specularGlossinessParams = ['color', 'map', 'lightMap', 'lightMapIntensity', 'aoMap', 'aoMapIntensity', 'emissive', 'emissiveIntensity', 'emissiveMap', 'bumpMap', 'bumpScale', 'normalMap', 'normalMapType', 'displacementMap', 'displacementScale', 'displacementBias', 'specularMap', 'specular', 'glossinessMap', 'glossiness', 'alphaMap', 'envMap', 'envMapIntensity', 'refractionRatio'];
}
(0, _createClass2["default"])(GLTFMaterialsPbrSpecularGlossinessExtension, [{
key: "getMaterialType",
value: function getMaterialType() {
return GLTFMeshStandardSGMaterial;
}
}, {
key: "extendParams",
value: function extendParams(materialParams, materialDef, parser) {
var pbrSpecularGlossiness = materialDef.extensions[this.name];
materialParams.color = new _three.Color(1.0, 1.0, 1.0);
materialParams.opacity = 1.0;
var pending = [];
if (Array.isArray(pbrSpecularGlossiness.diffuseFactor)) {
var array = pbrSpecularGlossiness.diffuseFactor;
materialParams.color.fromArray(array);
materialParams.opacity = array[3];
}
if (pbrSpecularGlossiness.diffuseTexture !== undefined) {
pending.push(parser.assignTexture(materialParams, 'map', pbrSpecularGlossiness.diffuseTexture));
}
materialParams.emissive = new _three.Color(0.0, 0.0, 0.0);
materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
materialParams.specular = new _three.Color(1.0, 1.0, 1.0);
if (Array.isArray(pbrSpecularGlossiness.specularFactor)) {
materialParams.specular.fromArray(pbrSpecularGlossiness.specularFactor);
}
if (pbrSpecularGlossiness.specularGlossinessTexture !== undefined) {
var specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture;
pending.push(parser.assignTexture(materialParams, 'glossinessMap', specGlossMapDef));
pending.push(parser.assignTexture(materialParams, 'specularMap', specGlossMapDef));
}
return Promise.all(pending);
}
}, {
key: "createMaterial",
value: function createMaterial(materialParams) {
var material = new GLTFMeshStandardSGMaterial(materialParams);
material.fog = true;
material.color = materialParams.color;
material.map = materialParams.map === undefined ? null : materialParams.map;
material.lightMap = null;
material.lightMapIntensity = 1.0;
material.aoMap = materialParams.aoMap === undefined ? null : materialParams.aoMap;
material.aoMapIntensity = 1.0;
material.emissive = materialParams.emissive;
material.emissiveIntensity = 1.0;
material.emissiveMap = materialParams.emissiveMap === undefined ? null : materialParams.emissiveMap;
material.bumpMap = materialParams.bumpMap === undefined ? null : materialParams.bumpMap;
material.bumpScale = 1;
material.normalMap = materialParams.normalMap === undefined ? null : materialParams.normalMap;
material.normalMapType = _three.TangentSpaceNormalMap;
if (materialParams.normalScale) material.normalScale = materialParams.normalScale;
material.displacementMap = null;
material.displacementScale = 1;
material.displacementBias = 0;
material.specularMap = materialParams.specularMap === undefined ? null : materialParams.specularMap;
material.specular = materialParams.specular;
material.glossinessMap = materialParams.glossinessMap === undefined ? null : materialParams.glossinessMap;
material.glossiness = materialParams.glossiness;
material.alphaMap = null;
material.envMap = materialParams.envMap === undefined ? null : materialParams.envMap;
material.envMapIntensity = 1.0;
material.refractionRatio = 0.98;
return material;
}
}]);
return GLTFMaterialsPbrSpecularGlossinessExtension;
}();
/**
* Mesh Quantization Extension
*
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization
*/
var GLTFMeshQuantizationExtension = function GLTFMeshQuantizationExtension() {
(0, _classCallCheck2["default"])(this, GLTFMeshQuantizationExtension);
this.name = EXTENSIONS.KHR_MESH_QUANTIZATION;
};
/*********************************/
/********** INTERPOLATION ********/
/*********************************/
// Spline Interpolation
// Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation
var GLTFCubicSplineInterpolant = /*#__PURE__*/function (_Interpolant) {
(0, _inherits2["default"])(GLTFCubicSplineInterpolant, _Interpolant);
var _super3 = _createSuper(GLTFCubicSplineInterpolant);
function GLTFCubicSplineInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
(0, _classCallCheck2["default"])(this, GLTFCubicSplineInterpolant);
return _super3.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
}
(0, _createClass2["default"])(GLTFCubicSplineInterpolant, [{
key: "copySampleValue_",
value: function copySampleValue_(index) {
// Copies a sample value to the result buffer. See description of glTF
// CUBICSPLINE values layout in interpolate_() function below.
var result = this.resultBuffer,
values = this.sampleValues,
valueSize = this.valueSize;
for (var i = 0; i !== valueSize; i++) {
result[i] = values[index * valueSize * 3 + valueSize + i];
}
return result;
}
}]);
return GLTFCubicSplineInterpolant;
}(_three.Interpolant);
GLTFCubicSplineInterpolant.prototype.beforeStart_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
GLTFCubicSplineInterpolant.prototype.afterEnd_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
GLTFCubicSplineInterpolant.prototype.interpolate_ = function (i1, t0, t, t1) {
var result = this.resultBuffer;
var values = this.sampleValues;
var stride = this.valueSize;
var stride3 = stride * 3;
var td = t1 - t0;
var p = (t - t0) / td;
var pp = p * p;
var ppp = pp * p;
var offset1 = i1 * stride3;
var offset0 = offset1 - stride3;
var s2 = -2 * ppp + 3 * pp;
var s3 = ppp - pp;
// Layout of keyframe output values for CUBICSPLINE animations:
// [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]
for (var i = 0; i !== stride; i++) {
var p0 = values[offset0 + i + stride]; // splineVertex_k
var m0 = values[offset0 + i + stride * 2] * td; // outTangent_k * (t_k+1 - t_k)
var p1 = values[offset1 + i + stride]; // splineVertex_k+1
var m1 = values[offset1 + i] * td; // inTangent_k+1 * (t_k+1 - t_k)
result[i] = (1 - s2) * p0 + (s3 - pp + p) * m0 + s2 * p1 + s3 * m1;
}
return result;
};
/*********************************/
/********** INTERNALS ************/
/*********************************/
/* CONSTANTS */
var WEBGL_CONSTANTS = {
FLOAT: 5126,
//FLOAT_MAT2: 35674,
FLOAT_MAT3: 35675,
FLOAT_MAT4: 35676,
FLOAT_VEC2: 35664,
FLOAT_VEC3: 35665,
FLOAT_VEC4: 35666,
LINEAR: 9729,
REPEAT: 10497,
SAMPLER_2D: 35678,
POINTS: 0,
LINES: 1,
LINE_LOOP: 2,
LINE_STRIP: 3,
TRIANGLES: 4,
TRIANGLE_STRIP: 5,
TRIANGLE_FAN: 6,
UNSIGNED_BYTE: 5121,
UNSIGNED_SHORT: 5123
};
var WEBGL_COMPONENT_TYPES = {
5120: Int8Array,
5121: Uint8Array,
5122: Int16Array,
5123: Uint16Array,
5125: Uint32Array,
5126: Float32Array
};
var WEBGL_FILTERS = {
9728: _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.RepeatWrapp