Babylon.js/dist/preview release/loaders/babylon.glTF2FileLoader.js

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/***/ "../../node_modules/tslib/tslib.es6.js":
/*!***********************************************************!*\
  !*** C:/Repos/Babylon.js/node_modules/tslib/tslib.es6.js ***!
  \***********************************************************/
/*! exports provided: __extends, __assign, __rest, __decorate, __param, __metadata, __awaiter, __generator, __createBinding, __exportStar, __values, __read, __spread, __spreadArrays, __await, __asyncGenerator, __asyncDelegator, __asyncValues, __makeTemplateObject, __importStar, __importDefault, __classPrivateFieldGet, __classPrivateFieldSet */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

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/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "__importDefault", function() { return __importDefault; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "__classPrivateFieldGet", function() { return __classPrivateFieldGet; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "__classPrivateFieldSet", function() { return __classPrivateFieldSet; });
/*! *****************************************************************************
Copyright (c) Microsoft Corporation.

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
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/***/ }),

/***/ "../../node_modules/webpack/buildin/global.js":
/*!***********************************!*\
  !*** (webpack)/buildin/global.js ***!
  \***********************************/
/*! no static exports found */
/***/ (function(module, exports) {

var g;

// This works in non-strict mode
g = (function() {
	return this;
})();

try {
	// This works if eval is allowed (see CSP)
	g = g || new Function("return this")();
} catch (e) {
	// This works if the window reference is available
	if (typeof window === "object") g = window;
}

// g can still be undefined, but nothing to do about it...
// We return undefined, instead of nothing here, so it's
// easier to handle this case. if(!global) { ...}

module.exports = g;


/***/ }),

/***/ "./glTF/2.0/Extensions/EXT_lights_image_based.ts":
/*!*******************************************************!*\
  !*** ./glTF/2.0/Extensions/EXT_lights_image_based.ts ***!
  \*******************************************************/
/*! exports provided: EXT_lights_image_based */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "EXT_lights_image_based", function() { return EXT_lights_image_based; });
/* harmony import */ var babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Maths/math.scalar */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");





var NAME = "EXT_lights_image_based";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Vendor/EXT_lights_image_based/README.md)
 */
var EXT_lights_image_based = /** @class */ (function () {
    /** @hidden */
    function EXT_lights_image_based(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    EXT_lights_image_based.prototype.dispose = function () {
        this._loader = null;
        delete this._lights;
    };
    /** @hidden */
    EXT_lights_image_based.prototype.onLoading = function () {
        var extensions = this._loader.gltf.extensions;
        if (extensions && extensions[this.name]) {
            var extension = extensions[this.name];
            this._lights = extension.lights;
        }
    };
    /** @hidden */
    EXT_lights_image_based.prototype.loadSceneAsync = function (context, scene) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, scene, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader.loadSceneAsync(context, scene));
            _this._loader.logOpen("" + extensionContext);
            var light = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(extensionContext + "/light", _this._lights, extension.light);
            promises.push(_this._loadLightAsync("/extensions/" + _this.name + "/lights/" + extension.light, light).then(function (texture) {
                _this._loader.babylonScene.environmentTexture = texture;
            }));
            _this._loader.logClose();
            return Promise.all(promises).then(function () { });
        });
    };
    EXT_lights_image_based.prototype._loadLightAsync = function (context, light) {
        var _this = this;
        if (!light._loaded) {
            var promises = new Array();
            this._loader.logOpen("" + context);
            var imageData_1 = new Array(light.specularImages.length);
            var _loop_1 = function (mipmap) {
                var faces = light.specularImages[mipmap];
                imageData_1[mipmap] = new Array(faces.length);
                var _loop_2 = function (face) {
                    var specularImageContext = context + "/specularImages/" + mipmap + "/" + face;
                    this_1._loader.logOpen("" + specularImageContext);
                    var index = faces[face];
                    var image = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(specularImageContext, this_1._loader.gltf.images, index);
                    promises.push(this_1._loader.loadImageAsync("/images/" + index, image).then(function (data) {
                        imageData_1[mipmap][face] = data;
                    }));
                    this_1._loader.logClose();
                };
                for (var face = 0; face < faces.length; face++) {
                    _loop_2(face);
                }
            };
            var this_1 = this;
            for (var mipmap = 0; mipmap < light.specularImages.length; mipmap++) {
                _loop_1(mipmap);
            }
            this._loader.logClose();
            light._loaded = Promise.all(promises).then(function () {
                var babylonTexture = new babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0__["RawCubeTexture"](_this._loader.babylonScene, null, light.specularImageSize);
                babylonTexture.name = light.name || "environment";
                light._babylonTexture = babylonTexture;
                if (light.intensity != undefined) {
                    babylonTexture.level = light.intensity;
                }
                if (light.rotation) {
                    var rotation = babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].FromArray(light.rotation);
                    // Invert the rotation so that positive rotation is counter-clockwise.
                    if (!_this._loader.babylonScene.useRightHandedSystem) {
                        rotation = babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].Inverse(rotation);
                    }
                    babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0__["Matrix"].FromQuaternionToRef(rotation, babylonTexture.getReflectionTextureMatrix());
                }
                var sphericalHarmonics = babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0__["SphericalHarmonics"].FromArray(light.irradianceCoefficients);
                sphericalHarmonics.scaleInPlace(light.intensity);
                sphericalHarmonics.convertIrradianceToLambertianRadiance();
                var sphericalPolynomial = babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0__["SphericalPolynomial"].FromHarmonics(sphericalHarmonics);
                // Compute the lod generation scale to fit exactly to the number of levels available.
                var lodGenerationScale = (imageData_1.length - 1) / babylonjs_Maths_math_scalar__WEBPACK_IMPORTED_MODULE_0__["Scalar"].Log2(light.specularImageSize);
                return babylonTexture.updateRGBDAsync(imageData_1, sphericalPolynomial, lodGenerationScale);
            });
        }
        return light._loaded.then(function () {
            return light._babylonTexture;
        });
    };
    return EXT_lights_image_based;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new EXT_lights_image_based(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/EXT_mesh_gpu_instancing.ts":
/*!********************************************************!*\
  !*** ./glTF/2.0/Extensions/EXT_mesh_gpu_instancing.ts ***!
  \********************************************************/
/*! exports provided: EXT_mesh_gpu_instancing */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "EXT_mesh_gpu_instancing", function() { return EXT_mesh_gpu_instancing; });
/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Maths/math.vector */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");



var NAME = "EXT_mesh_gpu_instancing";
/**
 * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
 * [Playground Sample](https://playground.babylonjs.com/#QFIGLW#9)
 * !!! Experimental Extension Subject to Changes !!!
 */
var EXT_mesh_gpu_instancing = /** @class */ (function () {
    /** @hidden */
    function EXT_mesh_gpu_instancing(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    EXT_mesh_gpu_instancing.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    EXT_mesh_gpu_instancing.prototype.loadNodeAsync = function (context, node, assign) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, node, this.name, function (extensionContext, extension) {
            _this._loader._disableInstancedMesh++;
            var promise = _this._loader.loadNodeAsync("/nodes/" + node.index, node, assign);
            _this._loader._disableInstancedMesh--;
            if (!node._primitiveBabylonMeshes) {
                return promise;
            }
            var promises = new Array();
            var instanceCount = 0;
            var loadAttribute = function (attribute) {
                if (extension.attributes[attribute] == undefined) {
                    promises.push(Promise.resolve(null));
                    return;
                }
                var accessor = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(extensionContext + "/attributes/" + attribute, _this._loader.gltf.accessors, extension.attributes[attribute]);
                promises.push(_this._loader._loadFloatAccessorAsync("/accessors/" + accessor.bufferView, accessor));
                if (instanceCount === 0) {
                    instanceCount = accessor.count;
                }
                else if (instanceCount !== accessor.count) {
                    throw new Error(extensionContext + "/attributes: Instance buffer accessors do not have the same count.");
                }
            };
            loadAttribute("TRANSLATION");
            loadAttribute("ROTATION");
            loadAttribute("SCALE");
            return promise.then(function (babylonTransformNode) {
                return Promise.all(promises).then(function (_a) {
                    var translationBuffer = _a[0], rotationBuffer = _a[1], scaleBuffer = _a[2];
                    var matrices = new Float32Array(instanceCount * 16);
                    babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Vector3[0].copyFromFloats(0, 0, 0); // translation
                    babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Quaternion[0].copyFromFloats(0, 0, 0, 1); // rotation
                    babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Vector3[1].copyFromFloats(1, 1, 1); // scale
                    for (var i = 0; i < instanceCount; ++i) {
                        translationBuffer && babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArrayToRef(translationBuffer, i * 3, babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Vector3[0]);
                        rotationBuffer && babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].FromArrayToRef(rotationBuffer, i * 4, babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Quaternion[0]);
                        scaleBuffer && babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArrayToRef(scaleBuffer, i * 3, babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Vector3[1]);
                        babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Matrix"].ComposeToRef(babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Vector3[1], babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Quaternion[0], babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Vector3[0], babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Matrix[0]);
                        babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Matrix[0].copyToArray(matrices, i * 16);
                    }
                    for (var _i = 0, _b = node._primitiveBabylonMeshes; _i < _b.length; _i++) {
                        var babylonMesh = _b[_i];
                        babylonMesh.thinInstanceSetBuffer("matrix", matrices, 16, true);
                    }
                    return babylonTransformNode;
                });
            });
        });
    };
    return EXT_mesh_gpu_instancing;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new EXT_mesh_gpu_instancing(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/EXT_meshopt_compression.ts":
/*!********************************************************!*\
  !*** ./glTF/2.0/Extensions/EXT_meshopt_compression.ts ***!
  \********************************************************/
/*! exports provided: EXT_meshopt_compression */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "EXT_meshopt_compression", function() { return EXT_meshopt_compression; });
/* harmony import */ var babylonjs_Misc_tools__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Misc/tools */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Misc_tools__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Misc_tools__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");


var NAME = "EXT_meshopt_compression";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_meshopt_compression)
 *
 * This extension uses a WebAssembly decoder module from https://github.com/zeux/meshoptimizer/tree/master/js
 */
var EXT_meshopt_compression = /** @class */ (function () {
    /** @hidden */
    function EXT_meshopt_compression(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this.enabled = loader.isExtensionUsed(NAME);
        this._loader = loader;
        if (this.enabled) {
            this._decoderPromise = babylonjs_Misc_tools__WEBPACK_IMPORTED_MODULE_0__["Tools"].LoadScriptAsync(EXT_meshopt_compression.DecoderPath).then(function () {
                // Wait for WebAssembly compilation before resolving promise
                return MeshoptDecoder.ready;
            });
        }
    }
    /** @hidden */
    EXT_meshopt_compression.prototype.dispose = function () {
        this._loader = null;
        delete this._decoderPromise;
    };
    /** @hidden */
    EXT_meshopt_compression.prototype.loadBufferViewAsync = function (context, bufferView) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, bufferView, this.name, function (extensionContext, extension) {
            var bufferViewMeshopt = bufferView;
            if (bufferViewMeshopt._meshOptData) {
                return bufferViewMeshopt._meshOptData;
            }
            var buffer = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(context + "/buffer", _this._loader.gltf.buffers, extension.buffer);
            var bufferPromise = _this._loader.loadBufferAsync("/buffers/" + buffer.index, buffer, (extension.byteOffset || 0), extension.byteLength);
            bufferViewMeshopt._meshOptData = Promise.all([bufferPromise, _this._decoderPromise]).then(function (res) {
                var source = res[0];
                var count = extension.count;
                var stride = extension.byteStride;
                var result = new Uint8Array(new ArrayBuffer(count * stride));
                MeshoptDecoder.decodeGltfBuffer(result, count, stride, source, extension.mode, extension.filter);
                return Promise.resolve(result);
            });
            return bufferViewMeshopt._meshOptData;
        });
    };
    /**
     * Path to decoder module; defaults to https://preview.babylonjs.com/meshopt_decoder.js
     */
    EXT_meshopt_compression.DecoderPath = "https://preview.babylonjs.com/meshopt_decoder.js";
    return EXT_meshopt_compression;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new EXT_meshopt_compression(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/EXT_texture_webp.ts":
/*!*************************************************!*\
  !*** ./glTF/2.0/Extensions/EXT_texture_webp.ts ***!
  \*************************************************/
/*! exports provided: EXT_texture_webp */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "EXT_texture_webp", function() { return EXT_texture_webp; });
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");

var NAME = "EXT_texture_webp";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Vendor/EXT_texture_webp/)
 */
var EXT_texture_webp = /** @class */ (function () {
    /** @hidden */
    function EXT_texture_webp(loader) {
        /** The name of this extension. */
        this.name = NAME;
        this._loader = loader;
        this.enabled = loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    EXT_texture_webp.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    EXT_texture_webp.prototype._loadTextureAsync = function (context, texture, assign) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].LoadExtensionAsync(context, texture, this.name, function (extensionContext, extension) {
            var sampler = (texture.sampler == undefined ? _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].DefaultSampler : _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["ArrayItem"].Get(context + "/sampler", _this._loader.gltf.samplers, texture.sampler));
            var image = _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["ArrayItem"].Get(extensionContext + "/source", _this._loader.gltf.images, extension.source);
            return _this._loader._createTextureAsync(context, sampler, image, function (babylonTexture) {
                assign(babylonTexture);
            });
        });
    };
    return EXT_texture_webp;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new EXT_texture_webp(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/ExtrasAsMetadata.ts":
/*!*************************************************!*\
  !*** ./glTF/2.0/Extensions/ExtrasAsMetadata.ts ***!
  \*************************************************/
/*! exports provided: ExtrasAsMetadata */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ExtrasAsMetadata", function() { return ExtrasAsMetadata; });
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");

var NAME = "ExtrasAsMetadata";
/**
 * Store glTF extras (if present) in BJS objects' metadata
 */
var ExtrasAsMetadata = /** @class */ (function () {
    /** @hidden */
    function ExtrasAsMetadata(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines whether this extension is enabled.
         */
        this.enabled = true;
        this._loader = loader;
    }
    ExtrasAsMetadata.prototype._assignExtras = function (babylonObject, gltfProp) {
        if (gltfProp.extras && Object.keys(gltfProp.extras).length > 0) {
            var metadata = (babylonObject.metadata = babylonObject.metadata || {});
            var gltf = (metadata.gltf = metadata.gltf || {});
            gltf.extras = gltfProp.extras;
        }
    };
    /** @hidden */
    ExtrasAsMetadata.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    ExtrasAsMetadata.prototype.loadNodeAsync = function (context, node, assign) {
        var _this = this;
        return this._loader.loadNodeAsync(context, node, function (babylonTransformNode) {
            _this._assignExtras(babylonTransformNode, node);
            assign(babylonTransformNode);
        });
    };
    /** @hidden */
    ExtrasAsMetadata.prototype.loadCameraAsync = function (context, camera, assign) {
        var _this = this;
        return this._loader.loadCameraAsync(context, camera, function (babylonCamera) {
            _this._assignExtras(babylonCamera, camera);
            assign(babylonCamera);
        });
    };
    /** @hidden */
    ExtrasAsMetadata.prototype.createMaterial = function (context, material, babylonDrawMode) {
        var babylonMaterial = this._loader.createMaterial(context, material, babylonDrawMode);
        this._assignExtras(babylonMaterial, material);
        return babylonMaterial;
    };
    return ExtrasAsMetadata;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new ExtrasAsMetadata(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_draco_mesh_compression.ts":
/*!***********************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_draco_mesh_compression.ts ***!
  \***********************************************************/
/*! exports provided: KHR_draco_mesh_compression */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_draco_mesh_compression", function() { return KHR_draco_mesh_compression; });
/* harmony import */ var babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Meshes/Compression/dracoCompression */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");




var NAME = "KHR_draco_mesh_compression";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_draco_mesh_compression)
 */
var KHR_draco_mesh_compression = /** @class */ (function () {
    /** @hidden */
    function KHR_draco_mesh_compression(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this._loader = loader;
        this.enabled = babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["DracoCompression"].DecoderAvailable && this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_draco_mesh_compression.prototype.dispose = function () {
        delete this.dracoCompression;
        this._loader = null;
    };
    /** @hidden */
    KHR_draco_mesh_compression.prototype._loadVertexDataAsync = function (context, primitive, babylonMesh) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, primitive, this.name, function (extensionContext, extension) {
            if (primitive.mode != undefined) {
                if (primitive.mode !== 5 /* TRIANGLE_STRIP */ &&
                    primitive.mode !== 4 /* TRIANGLES */) {
                    throw new Error(context + ": Unsupported mode " + primitive.mode);
                }
                // TODO: handle triangle strips
                if (primitive.mode === 5 /* TRIANGLE_STRIP */) {
                    throw new Error(context + ": Mode " + primitive.mode + " is not currently supported");
                }
            }
            var attributes = {};
            var loadAttribute = function (name, kind) {
                var uniqueId = extension.attributes[name];
                if (uniqueId == undefined) {
                    return;
                }
                babylonMesh._delayInfo = babylonMesh._delayInfo || [];
                if (babylonMesh._delayInfo.indexOf(kind) === -1) {
                    babylonMesh._delayInfo.push(kind);
                }
                attributes[kind] = uniqueId;
            };
            loadAttribute("POSITION", babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].PositionKind);
            loadAttribute("NORMAL", babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].NormalKind);
            loadAttribute("TANGENT", babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].TangentKind);
            loadAttribute("TEXCOORD_0", babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].UVKind);
            loadAttribute("TEXCOORD_1", babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].UV2Kind);
            loadAttribute("JOINTS_0", babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].MatricesIndicesKind);
            loadAttribute("WEIGHTS_0", babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].MatricesWeightsKind);
            loadAttribute("COLOR_0", babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].ColorKind);
            var bufferView = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(extensionContext, _this._loader.gltf.bufferViews, extension.bufferView);
            if (!bufferView._dracoBabylonGeometry) {
                bufferView._dracoBabylonGeometry = _this._loader.loadBufferViewAsync("/bufferViews/" + bufferView.index, bufferView).then(function (data) {
                    var dracoCompression = _this.dracoCompression || babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["DracoCompression"].Default;
                    return dracoCompression.decodeMeshAsync(data, attributes).then(function (babylonVertexData) {
                        var babylonGeometry = new babylonjs_Meshes_Compression_dracoCompression__WEBPACK_IMPORTED_MODULE_0__["Geometry"](babylonMesh.name, _this._loader.babylonScene);
                        babylonVertexData.applyToGeometry(babylonGeometry);
                        return babylonGeometry;
                    }).catch(function (error) {
                        throw new Error(context + ": " + error.message);
                    });
                });
            }
            return bufferView._dracoBabylonGeometry;
        });
    };
    return KHR_draco_mesh_compression;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_draco_mesh_compression(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_lights_punctual.ts":
/*!****************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_lights_punctual.ts ***!
  \****************************************************/
/*! exports provided: KHR_lights */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_lights", function() { return KHR_lights; });
/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Maths/math.vector */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");







var NAME = "KHR_lights_punctual";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Khronos/KHR_lights_punctual)
 */
var KHR_lights = /** @class */ (function () {
    /** @hidden */
    function KHR_lights(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_lights.prototype.dispose = function () {
        this._loader = null;
        delete this._lights;
    };
    /** @hidden */
    KHR_lights.prototype.onLoading = function () {
        var extensions = this._loader.gltf.extensions;
        if (extensions && extensions[this.name]) {
            var extension = extensions[this.name];
            this._lights = extension.lights;
        }
    };
    /** @hidden */
    KHR_lights.prototype.loadNodeAsync = function (context, node, assign) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, node, this.name, function (extensionContext, extension) {
            return _this._loader.loadNodeAsync(context, node, function (babylonMesh) {
                var babylonLight;
                var light = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(extensionContext, _this._lights, extension.light);
                var name = light.name || babylonMesh.name;
                _this._loader.babylonScene._blockEntityCollection = _this._loader._forAssetContainer;
                switch (light.type) {
                    case "directional" /* DIRECTIONAL */: {
                        babylonLight = new babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["DirectionalLight"](name, babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].Backward(), _this._loader.babylonScene);
                        break;
                    }
                    case "point" /* POINT */: {
                        babylonLight = new babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["PointLight"](name, babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].Zero(), _this._loader.babylonScene);
                        break;
                    }
                    case "spot" /* SPOT */: {
                        var babylonSpotLight = new babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["SpotLight"](name, babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].Zero(), babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].Backward(), 0, 1, _this._loader.babylonScene);
                        babylonSpotLight.angle = ((light.spot && light.spot.outerConeAngle) || Math.PI / 4) * 2;
                        babylonSpotLight.innerAngle = ((light.spot && light.spot.innerConeAngle) || 0) * 2;
                        babylonLight = babylonSpotLight;
                        break;
                    }
                    default: {
                        _this._loader.babylonScene._blockEntityCollection = false;
                        throw new Error(extensionContext + ": Invalid light type (" + light.type + ")");
                    }
                }
                _this._loader.babylonScene._blockEntityCollection = false;
                babylonLight.falloffType = babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Light"].FALLOFF_GLTF;
                babylonLight.diffuse = light.color ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Color3"].FromArray(light.color) : babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Color3"].White();
                babylonLight.intensity = light.intensity == undefined ? 1 : light.intensity;
                babylonLight.range = light.range == undefined ? Number.MAX_VALUE : light.range;
                babylonLight.parent = babylonMesh;
                _this._loader._babylonLights.push(babylonLight);
                _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].AddPointerMetadata(babylonLight, extensionContext);
                assign(babylonMesh);
            });
        });
    };
    return KHR_lights;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_lights(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_materials_clearcoat.ts":
/*!********************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_materials_clearcoat.ts ***!
  \********************************************************/
/*! exports provided: KHR_materials_clearcoat */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_clearcoat", function() { return KHR_materials_clearcoat; });
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Materials/PBR/pbrMaterial */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");


var NAME = "KHR_materials_clearcoat";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Khronos/KHR_materials_clearcoat/README.md)
 * [Playground Sample](https://www.babylonjs-playground.com/frame.html#7F7PN6#8)
 */
var KHR_materials_clearcoat = /** @class */ (function () {
    /** @hidden */
    function KHR_materials_clearcoat(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 190;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_materials_clearcoat.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_materials_clearcoat.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, material, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));
            promises.push(_this._loadClearCoatPropertiesAsync(extensionContext, extension, babylonMaterial));
            return Promise.all(promises).then(function () { });
        });
    };
    KHR_materials_clearcoat.prototype._loadClearCoatPropertiesAsync = function (context, properties, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var promises = new Array();
        babylonMaterial.clearCoat.isEnabled = true;
        babylonMaterial.clearCoat.useRoughnessFromMainTexture = false;
        babylonMaterial.clearCoat.remapF0OnInterfaceChange = false;
        if (properties.clearcoatFactor != undefined) {
            babylonMaterial.clearCoat.intensity = properties.clearcoatFactor;
        }
        else {
            babylonMaterial.clearCoat.intensity = 0;
        }
        if (properties.clearcoatTexture) {
            promises.push(this._loader.loadTextureInfoAsync(context + "/clearcoatTexture", properties.clearcoatTexture, function (texture) {
                texture.name = babylonMaterial.name + " (ClearCoat Intensity)";
                babylonMaterial.clearCoat.texture = texture;
            }));
        }
        if (properties.clearcoatRoughnessFactor != undefined) {
            babylonMaterial.clearCoat.roughness = properties.clearcoatRoughnessFactor;
        }
        else {
            babylonMaterial.clearCoat.roughness = 0;
        }
        if (properties.clearcoatRoughnessTexture) {
            properties.clearcoatRoughnessTexture.nonColorData = true;
            promises.push(this._loader.loadTextureInfoAsync(context + "/clearcoatRoughnessTexture", properties.clearcoatRoughnessTexture, function (texture) {
                texture.name = babylonMaterial.name + " (ClearCoat Roughness)";
                babylonMaterial.clearCoat.textureRoughness = texture;
            }));
        }
        if (properties.clearcoatNormalTexture) {
            properties.clearcoatNormalTexture.nonColorData = true;
            promises.push(this._loader.loadTextureInfoAsync(context + "/clearcoatNormalTexture", properties.clearcoatNormalTexture, function (texture) {
                texture.name = babylonMaterial.name + " (ClearCoat Normal)";
                babylonMaterial.clearCoat.bumpTexture = texture;
            }));
            babylonMaterial.invertNormalMapX = !babylonMaterial.getScene().useRightHandedSystem;
            babylonMaterial.invertNormalMapY = babylonMaterial.getScene().useRightHandedSystem;
            if (properties.clearcoatNormalTexture.scale != undefined) {
                babylonMaterial.clearCoat.bumpTexture.level = properties.clearcoatNormalTexture.scale;
            }
        }
        return Promise.all(promises).then(function () { });
    };
    return KHR_materials_clearcoat;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_materials_clearcoat(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_materials_ior.ts":
/*!**************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_materials_ior.ts ***!
  \**************************************************/
/*! exports provided: KHR_materials_ior */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_ior", function() { return KHR_materials_ior; });
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Materials/PBR/pbrMaterial */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");


var NAME = "KHR_materials_ior";
/**
 * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1718)
 * !!! Experimental Extension Subject to Changes !!!
 */
var KHR_materials_ior = /** @class */ (function () {
    /** @hidden */
    function KHR_materials_ior(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 180;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_materials_ior.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_materials_ior.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, material, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));
            promises.push(_this._loadIorPropertiesAsync(extensionContext, extension, babylonMaterial));
            return Promise.all(promises).then(function () { });
        });
    };
    KHR_materials_ior.prototype._loadIorPropertiesAsync = function (context, properties, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        if (properties.ior !== undefined) {
            babylonMaterial.indexOfRefraction = properties.ior;
        }
        else {
            babylonMaterial.indexOfRefraction = KHR_materials_ior._DEFAULT_IOR;
        }
        return Promise.resolve();
    };
    /**
     * Default ior Value from the spec.
     */
    KHR_materials_ior._DEFAULT_IOR = 1.5;
    return KHR_materials_ior;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_materials_ior(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_materials_pbrSpecularGlossiness.ts":
/*!********************************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_materials_pbrSpecularGlossiness.ts ***!
  \********************************************************************/
/*! exports provided: KHR_materials_pbrSpecularGlossiness */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_pbrSpecularGlossiness", function() { return KHR_materials_pbrSpecularGlossiness; });
/* harmony import */ var babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Maths/math.color */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");



var NAME = "KHR_materials_pbrSpecularGlossiness";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness)
 */
var KHR_materials_pbrSpecularGlossiness = /** @class */ (function () {
    /** @hidden */
    function KHR_materials_pbrSpecularGlossiness(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 200;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_materials_pbrSpecularGlossiness.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_materials_pbrSpecularGlossiness.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, material, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader.loadMaterialBasePropertiesAsync(context, material, babylonMaterial));
            promises.push(_this._loadSpecularGlossinessPropertiesAsync(extensionContext, material, extension, babylonMaterial));
            _this._loader.loadMaterialAlphaProperties(context, material, babylonMaterial);
            return Promise.all(promises).then(function () { });
        });
    };
    KHR_materials_pbrSpecularGlossiness.prototype._loadSpecularGlossinessPropertiesAsync = function (context, material, properties, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var promises = new Array();
        babylonMaterial.metallic = null;
        babylonMaterial.roughness = null;
        if (properties.diffuseFactor) {
            babylonMaterial.albedoColor = babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__["Color3"].FromArray(properties.diffuseFactor);
            babylonMaterial.alpha = properties.diffuseFactor[3];
        }
        else {
            babylonMaterial.albedoColor = babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__["Color3"].White();
        }
        babylonMaterial.reflectivityColor = properties.specularFactor ? babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__["Color3"].FromArray(properties.specularFactor) : babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__["Color3"].White();
        babylonMaterial.microSurface = properties.glossinessFactor == undefined ? 1 : properties.glossinessFactor;
        if (properties.diffuseTexture) {
            promises.push(this._loader.loadTextureInfoAsync(context + "/diffuseTexture", properties.diffuseTexture, function (texture) {
                texture.name = babylonMaterial.name + " (Diffuse)";
                babylonMaterial.albedoTexture = texture;
            }));
        }
        if (properties.specularGlossinessTexture) {
            properties.specularGlossinessTexture.nonColorData = true;
            promises.push(this._loader.loadTextureInfoAsync(context + "/specularGlossinessTexture", properties.specularGlossinessTexture, function (texture) {
                texture.name = babylonMaterial.name + " (Specular Glossiness)";
                babylonMaterial.reflectivityTexture = texture;
            }));
            babylonMaterial.reflectivityTexture.hasAlpha = true;
            babylonMaterial.useMicroSurfaceFromReflectivityMapAlpha = true;
        }
        return Promise.all(promises).then(function () { });
    };
    return KHR_materials_pbrSpecularGlossiness;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_materials_pbrSpecularGlossiness(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_materials_sheen.ts":
/*!****************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_materials_sheen.ts ***!
  \****************************************************/
/*! exports provided: KHR_materials_sheen */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_sheen", function() { return KHR_materials_sheen; });
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Materials/PBR/pbrMaterial */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");



var NAME = "KHR_materials_sheen";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Khronos/KHR_materials_sheen/README.md)
 * [Playground Sample](https://www.babylonjs-playground.com/frame.html#BNIZX6#4)
 * !!! Experimental Extension Subject to Changes !!!
 */
var KHR_materials_sheen = /** @class */ (function () {
    /** @hidden */
    function KHR_materials_sheen(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 190;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_materials_sheen.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_materials_sheen.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, material, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));
            promises.push(_this._loadSheenPropertiesAsync(extensionContext, extension, babylonMaterial));
            return Promise.all(promises).then(function () { });
        });
    };
    KHR_materials_sheen.prototype._loadSheenPropertiesAsync = function (context, properties, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var promises = new Array();
        babylonMaterial.sheen.isEnabled = true;
        babylonMaterial.sheen.intensity = 1;
        if (properties.sheenColorFactor != undefined) {
            babylonMaterial.sheen.color = babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["Color3"].FromArray(properties.sheenColorFactor);
        }
        else {
            babylonMaterial.sheen.color = babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["Color3"].Black();
        }
        if (properties.sheenColorTexture) {
            promises.push(this._loader.loadTextureInfoAsync(context + "/sheenColorTexture", properties.sheenColorTexture, function (texture) {
                texture.name = babylonMaterial.name + " (Sheen Color)";
                babylonMaterial.sheen.texture = texture;
            }));
        }
        if (properties.sheenRoughnessFactor !== undefined) {
            babylonMaterial.sheen.roughness = properties.sheenRoughnessFactor;
        }
        else {
            babylonMaterial.sheen.roughness = 0;
        }
        if (properties.sheenRoughnessTexture) {
            properties.sheenRoughnessTexture.nonColorData = true;
            promises.push(this._loader.loadTextureInfoAsync(context + "/sheenRoughnessTexture", properties.sheenRoughnessTexture, function (texture) {
                texture.name = babylonMaterial.name + " (Sheen Roughness)";
                babylonMaterial.sheen.textureRoughness = texture;
            }));
        }
        babylonMaterial.sheen.albedoScaling = true;
        babylonMaterial.sheen.useRoughnessFromMainTexture = false;
        return Promise.all(promises).then(function () { });
    };
    return KHR_materials_sheen;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_materials_sheen(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_materials_specular.ts":
/*!*******************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_materials_specular.ts ***!
  \*******************************************************/
/*! exports provided: KHR_materials_specular */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_specular", function() { return KHR_materials_specular; });
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Materials/PBR/pbrMaterial */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");



var NAME = "KHR_materials_specular";
/**
 * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1719)
 * !!! Experimental Extension Subject to Changes !!!
 */
var KHR_materials_specular = /** @class */ (function () {
    /** @hidden */
    function KHR_materials_specular(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 190;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_materials_specular.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_materials_specular.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, material, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));
            promises.push(_this._loadSpecularPropertiesAsync(extensionContext, extension, babylonMaterial));
            return Promise.all(promises).then(function () { });
        });
    };
    KHR_materials_specular.prototype._loadSpecularPropertiesAsync = function (context, properties, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var promises = new Array();
        if (properties.specularFactor !== undefined) {
            babylonMaterial.metallicF0Factor = properties.specularFactor;
        }
        if (properties.specularColorFactor !== undefined) {
            babylonMaterial.metallicReflectanceColor = babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["Color3"].FromArray(properties.specularColorFactor);
        }
        if (properties.specularTexture) {
            properties.specularTexture.nonColorData = true;
            promises.push(this._loader.loadTextureInfoAsync(context + "/specularTexture", properties.specularTexture, function (texture) {
                texture.name = babylonMaterial.name + " (Specular F0 Color)";
                babylonMaterial.metallicReflectanceTexture = texture;
            }));
        }
        return Promise.all(promises).then(function () { });
    };
    return KHR_materials_specular;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_materials_specular(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_materials_translucency.ts":
/*!***********************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_materials_translucency.ts ***!
  \***********************************************************/
/*! exports provided: KHR_materials_translucency */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_translucency", function() { return KHR_materials_translucency; });
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Materials/PBR/pbrMaterial */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");


var NAME = "KHR_materials_translucency";
/**
 * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1825)
 * !!! Experimental Extension Subject to Changes !!!
 */
var KHR_materials_translucency = /** @class */ (function () {
    /** @hidden */
    function KHR_materials_translucency(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 175;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
        if (this.enabled) {
            loader.parent.transparencyAsCoverage = true;
        }
    }
    /** @hidden */
    KHR_materials_translucency.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_materials_translucency.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, material, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader.loadMaterialBasePropertiesAsync(context, material, babylonMaterial));
            promises.push(_this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));
            promises.push(_this._loadTranslucentPropertiesAsync(extensionContext, material, babylonMaterial, extension));
            return Promise.all(promises).then(function () { });
        });
    };
    KHR_materials_translucency.prototype._loadTranslucentPropertiesAsync = function (context, material, babylonMaterial, extension) {
        if (!(babylonMaterial instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var pbrMaterial = babylonMaterial;
        // Enables "translucency" texture which represents diffusely-transmitted light.
        pbrMaterial.subSurface.isTranslucencyEnabled = true;
        // Since this extension models thin-surface transmission only, we must make the
        // internal IOR == 1.0 and set the thickness to 0.
        pbrMaterial.subSurface.volumeIndexOfRefraction = 1.0;
        pbrMaterial.subSurface.minimumThickness = 0.0;
        pbrMaterial.subSurface.maximumThickness = 0.0;
        // Albedo colour will tint transmission.
        pbrMaterial.subSurface.useAlbedoToTintRefraction = true;
        if (extension.translucencyFactor !== undefined) {
            pbrMaterial.subSurface.translucencyIntensity = extension.translucencyFactor;
        }
        else {
            pbrMaterial.subSurface.translucencyIntensity = 0.0;
            pbrMaterial.subSurface.isTranslucencyEnabled = false;
            return Promise.resolve();
        }
        if (extension.translucencyTexture) {
            return this._loader.loadTextureInfoAsync(context + "/translucencyTexture", extension.translucencyTexture)
                .then(function (texture) {
                pbrMaterial.subSurface.thicknessTexture = texture;
                pbrMaterial.subSurface.useMaskFromThicknessTextureGltf = true;
            });
        }
        else {
            return Promise.resolve();
        }
    };
    return KHR_materials_translucency;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_materials_translucency(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_materials_transmission.ts":
/*!***********************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_materials_transmission.ts ***!
  \***********************************************************/
/*! exports provided: KHR_materials_transmission */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_transmission", function() { return KHR_materials_transmission; });
/* harmony import */ var tslib__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! tslib */ "../../node_modules/tslib/tslib.es6.js");
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! babylonjs/Materials/PBR/pbrMaterial */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");






/**
 * A class to handle setting up the rendering of opaque objects to be shown through transmissive objects.
 */
var TransmissionHelper = /** @class */ (function () {
    /**
     * constructor
     * @param options Defines the options we want to customize the helper
     * @param scene The scene to add the material to
     */
    function TransmissionHelper(options, scene) {
        var _this = this;
        this._opaqueRenderTarget = null;
        this._opaqueMeshesCache = [];
        this._transparentMeshesCache = [];
        this._options = Object(tslib__WEBPACK_IMPORTED_MODULE_0__["__assign"])(Object(tslib__WEBPACK_IMPORTED_MODULE_0__["__assign"])({}, TransmissionHelper._getDefaultOptions()), options);
        this._scene = scene;
        this._scene._transmissionHelper = this;
        this.onErrorObservable = new babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__["Observable"]();
        this._scene.onDisposeObservable.addOnce(function (scene) {
            _this.dispose();
        });
        this._parseScene();
        this._setupRenderTargets();
    }
    /**
     * Creates the default options for the helper.
     */
    TransmissionHelper._getDefaultOptions = function () {
        return {
            renderSize: 1024
        };
    };
    /**
     * Updates the background according to the new options
     * @param options
     */
    TransmissionHelper.prototype.updateOptions = function (options) {
        var _this = this;
        // First check if any options are actually being changed. If not, exit.
        var newValues = Object.keys(options).filter(function (key) { return _this._options[key] !== options[key]; });
        if (!newValues.length) {
            return;
        }
        var newOptions = Object(tslib__WEBPACK_IMPORTED_MODULE_0__["__assign"])(Object(tslib__WEBPACK_IMPORTED_MODULE_0__["__assign"])({}, this._options), options);
        var oldOptions = this._options;
        this._options = newOptions;
        // If size changes, recreate everything
        if (newOptions.renderSize !== oldOptions.renderSize) {
            this._setupRenderTargets();
        }
    };
    TransmissionHelper.prototype.getOpaqueTarget = function () {
        return this._opaqueRenderTarget;
    };
    TransmissionHelper.prototype.shouldRenderAsTransmission = function (material) {
        if (!material) {
            return false;
        }
        if (material instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__["PBRMaterial"] && (material.subSurface.isRefractionEnabled)) {
            return true;
        }
        return false;
    };
    TransmissionHelper.prototype._addMesh = function (mesh) {
        if (mesh instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__["Mesh"]) {
            mesh.onMaterialChangedObservable.add(this.onMeshMaterialChanged.bind(this));
            if (this.shouldRenderAsTransmission(mesh.material)) {
                this._transparentMeshesCache.push(mesh);
            }
            else {
                this._opaqueMeshesCache.push(mesh);
            }
        }
    };
    TransmissionHelper.prototype._removeMesh = function (mesh) {
        if (mesh instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__["Mesh"]) {
            mesh.onMaterialChangedObservable.remove(this.onMeshMaterialChanged.bind(this));
            var idx = this._transparentMeshesCache.indexOf(mesh);
            if (idx !== -1) {
                this._transparentMeshesCache.splice(idx, 1);
            }
            idx = this._opaqueMeshesCache.indexOf(mesh);
            if (idx !== -1) {
                this._opaqueMeshesCache.splice(idx, 1);
            }
        }
    };
    TransmissionHelper.prototype._parseScene = function () {
        this._scene.meshes.forEach(this._addMesh.bind(this));
        // Listen for when a mesh is added to the scene and add it to our cache lists.
        this._scene.onNewMeshAddedObservable.add(this._addMesh.bind(this));
        // Listen for when a mesh is removed from to the scene and remove it from our cache lists.
        this._scene.onMeshRemovedObservable.add(this._removeMesh.bind(this));
    };
    // When one of the meshes in the scene has its material changed, make sure that it's in the correct cache list.
    TransmissionHelper.prototype.onMeshMaterialChanged = function (mesh) {
        if (mesh instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__["Mesh"]) {
            var transparentIdx = this._transparentMeshesCache.indexOf(mesh);
            var opaqueIdx = this._opaqueMeshesCache.indexOf(mesh);
            // If the material is transparent, make sure that it's added to the transparent list and removed from the opaque list
            var useTransmission = this.shouldRenderAsTransmission(mesh.material);
            if (useTransmission) {
                if (mesh.material instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__["PBRMaterial"]) {
                    mesh.material.subSurface.refractionTexture = this._opaqueRenderTarget;
                }
                if (opaqueIdx !== -1) {
                    this._opaqueMeshesCache.splice(opaqueIdx, 1);
                    this._transparentMeshesCache.push(mesh);
                }
                else if (transparentIdx === -1) {
                    this._transparentMeshesCache.push(mesh);
                }
                // If the material is opaque, make sure that it's added to the opaque list and removed from the transparent list
            }
            else {
                if (transparentIdx !== -1) {
                    this._transparentMeshesCache.splice(transparentIdx, 1);
                    this._opaqueMeshesCache.push(mesh);
                }
                else if (opaqueIdx === -1) {
                    this._opaqueMeshesCache.push(mesh);
                }
            }
        }
    };
    /**
     * Setup the render targets according to the specified options.
     */
    TransmissionHelper.prototype._setupRenderTargets = function () {
        var _this = this;
        var opaqueRTIndex = -1;
        // Remove any layers rendering to the opaque scene.
        if (this._scene.layers && this._opaqueRenderTarget) {
            for (var _i = 0, _a = this._scene.layers; _i < _a.length; _i++) {
                var layer = _a[_i];
                var idx = layer.renderTargetTextures.indexOf(this._opaqueRenderTarget);
                if (idx >= 0) {
                    layer.renderTargetTextures.splice(idx, 1);
                }
            }
        }
        // Remove opaque render target
        if (this._opaqueRenderTarget) {
            opaqueRTIndex = this._scene.customRenderTargets.indexOf(this._opaqueRenderTarget);
            this._opaqueRenderTarget.dispose();
        }
        this._opaqueRenderTarget = new babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__["RenderTargetTexture"]("opaqueSceneTexture", this._options.renderSize, this._scene, true);
        this._opaqueRenderTarget.renderList = this._opaqueMeshesCache;
        // this._opaqueRenderTarget.clearColor = new Color4(0.0, 0.0, 0.0, 0.0);
        this._opaqueRenderTarget.gammaSpace = true;
        this._opaqueRenderTarget.lodGenerationScale = 1;
        this._opaqueRenderTarget.lodGenerationOffset = -4;
        this._opaqueRenderTarget.samples = 4;
        if (opaqueRTIndex >= 0) {
            this._scene.customRenderTargets.splice(opaqueRTIndex, 0, this._opaqueRenderTarget);
        }
        else {
            opaqueRTIndex = this._scene.customRenderTargets.length;
            this._scene.customRenderTargets.push(this._opaqueRenderTarget);
        }
        // If there are other layers, they should be included in the render of the opaque background.
        if (this._scene.layers && this._opaqueRenderTarget) {
            for (var _b = 0, _c = this._scene.layers; _b < _c.length; _b++) {
                var layer = _c[_b];
                layer.renderTargetTextures.push(this._opaqueRenderTarget);
            }
        }
        this._transparentMeshesCache.forEach(function (mesh) {
            if (_this.shouldRenderAsTransmission(mesh.material) && mesh.material instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__["PBRMaterial"]) {
                mesh.material.refractionTexture = _this._opaqueRenderTarget;
            }
        });
    };
    /**
     * Dispose all the elements created by the Helper.
     */
    TransmissionHelper.prototype.dispose = function () {
        this._scene._transmissionHelper = undefined;
        if (this._opaqueRenderTarget) {
            this._opaqueRenderTarget.dispose();
            this._opaqueRenderTarget = null;
        }
        this._transparentMeshesCache = [];
        this._opaqueMeshesCache = [];
    };
    return TransmissionHelper;
}());
var NAME = "KHR_materials_transmission";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Khronos/KHR_materials_transmission/README.md)
 */
var KHR_materials_transmission = /** @class */ (function () {
    /** @hidden */
    function KHR_materials_transmission(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 175;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
        if (this.enabled) {
            loader.parent.transparencyAsCoverage = true;
        }
    }
    /** @hidden */
    KHR_materials_transmission.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_materials_transmission.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_2__["GLTFLoader"].LoadExtensionAsync(context, material, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader.loadMaterialBasePropertiesAsync(context, material, babylonMaterial));
            promises.push(_this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));
            promises.push(_this._loadTransparentPropertiesAsync(extensionContext, material, babylonMaterial, extension));
            return Promise.all(promises).then(function () { });
        });
    };
    KHR_materials_transmission.prototype._loadTransparentPropertiesAsync = function (context, material, babylonMaterial, extension) {
        if (!(babylonMaterial instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_1__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var pbrMaterial = babylonMaterial;
        // Enables "refraction" texture which represents transmitted light.
        pbrMaterial.subSurface.isRefractionEnabled = true;
        // Since this extension models thin-surface transmission only, we must make IOR = 1.0
        pbrMaterial.subSurface.volumeIndexOfRefraction = 1.0;
        // Albedo colour will tint transmission.
        pbrMaterial.subSurface.useAlbedoToTintRefraction = true;
        if (extension.transmissionFactor !== undefined) {
            pbrMaterial.subSurface.refractionIntensity = extension.transmissionFactor;
            var scene = pbrMaterial.getScene();
            if (pbrMaterial.subSurface.refractionIntensity && !scene._transmissionHelper) {
                new TransmissionHelper({}, pbrMaterial.getScene());
            }
        }
        else {
            pbrMaterial.subSurface.refractionIntensity = 0.0;
            pbrMaterial.subSurface.isRefractionEnabled = false;
            return Promise.resolve();
        }
        if (extension.transmissionTexture) {
            extension.transmissionTexture.nonColorData = true;
            return this._loader.loadTextureInfoAsync(context + "/transmissionTexture", extension.transmissionTexture, undefined)
                .then(function (texture) {
                pbrMaterial.subSurface.thicknessTexture = texture;
                pbrMaterial.subSurface.useMaskFromThicknessTextureGltf = true;
            });
        }
        else {
            return Promise.resolve();
        }
    };
    return KHR_materials_transmission;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_2__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_materials_transmission(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_materials_unlit.ts":
/*!****************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_materials_unlit.ts ***!
  \****************************************************/
/*! exports provided: KHR_materials_unlit */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_unlit", function() { return KHR_materials_unlit; });
/* harmony import */ var babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Maths/math.color */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");



var NAME = "KHR_materials_unlit";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_unlit)
 */
var KHR_materials_unlit = /** @class */ (function () {
    /** @hidden */
    function KHR_materials_unlit(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 210;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_materials_unlit.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_materials_unlit.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, material, this.name, function () {
            return _this._loadUnlitPropertiesAsync(context, material, babylonMaterial);
        });
    };
    KHR_materials_unlit.prototype._loadUnlitPropertiesAsync = function (context, material, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var promises = new Array();
        babylonMaterial.unlit = true;
        var properties = material.pbrMetallicRoughness;
        if (properties) {
            if (properties.baseColorFactor) {
                babylonMaterial.albedoColor = babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__["Color3"].FromArray(properties.baseColorFactor);
                babylonMaterial.alpha = properties.baseColorFactor[3];
            }
            else {
                babylonMaterial.albedoColor = babylonjs_Maths_math_color__WEBPACK_IMPORTED_MODULE_0__["Color3"].White();
            }
            if (properties.baseColorTexture) {
                promises.push(this._loader.loadTextureInfoAsync(context + "/baseColorTexture", properties.baseColorTexture, function (texture) {
                    texture.name = babylonMaterial.name + " (Base Color)";
                    babylonMaterial.albedoTexture = texture;
                }));
            }
        }
        if (material.doubleSided) {
            babylonMaterial.backFaceCulling = false;
            babylonMaterial.twoSidedLighting = true;
        }
        this._loader.loadMaterialAlphaProperties(context, material, babylonMaterial);
        return Promise.all(promises).then(function () { });
    };
    return KHR_materials_unlit;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_materials_unlit(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_materials_variants.ts":
/*!*******************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_materials_variants.ts ***!
  \*******************************************************/
/*! exports provided: KHR_materials_variants */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_variants", function() { return KHR_materials_variants; });
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");
/* harmony import */ var babylonjs_Meshes_mesh__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! babylonjs/Meshes/mesh */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Meshes_mesh__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Meshes_mesh__WEBPACK_IMPORTED_MODULE_1__);


var NAME = "KHR_materials_variants";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Khronos/KHR_materials_variants/README.md)
 */
var KHR_materials_variants = /** @class */ (function () {
    /** @hidden */
    function KHR_materials_variants(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_materials_variants.prototype.dispose = function () {
        this._loader = null;
    };
    /**
     * Gets the list of available variant names for this asset.
     * @param rootMesh The glTF root mesh
     * @returns the list of all the variant names for this model
     */
    KHR_materials_variants.GetAvailableVariants = function (rootMesh) {
        var extensionMetadata = this._GetExtensionMetadata(rootMesh);
        if (!extensionMetadata) {
            return [];
        }
        return Object.keys(extensionMetadata.variants);
    };
    /**
     * Gets the list of available variant names for this asset.
     * @param rootMesh The glTF root mesh
     * @returns the list of all the variant names for this model
     */
    KHR_materials_variants.prototype.getAvailableVariants = function (rootMesh) {
        return KHR_materials_variants.GetAvailableVariants(rootMesh);
    };
    /**
     * Select a variant given a variant name or a list of variant names.
     * @param rootMesh The glTF root mesh
     * @param variantName The variant name(s) to select.
     */
    KHR_materials_variants.SelectVariant = function (rootMesh, variantName) {
        var extensionMetadata = this._GetExtensionMetadata(rootMesh);
        if (!extensionMetadata) {
            throw new Error("Cannot select variant on a glTF mesh that does not have the " + NAME + " extension");
        }
        var select = function (variantName) {
            var entries = extensionMetadata.variants[variantName];
            if (entries) {
                for (var _i = 0, entries_1 = entries; _i < entries_1.length; _i++) {
                    var entry = entries_1[_i];
                    entry.mesh.material = entry.material;
                }
            }
        };
        if (variantName instanceof Array) {
            for (var _i = 0, variantName_1 = variantName; _i < variantName_1.length; _i++) {
                var name_1 = variantName_1[_i];
                select(name_1);
            }
        }
        else {
            select(variantName);
        }
        extensionMetadata.lastSelected = variantName;
    };
    /**
     * Select a variant given a variant name or a list of variant names.
     * @param rootMesh The glTF root mesh
     * @param variantName The variant name(s) to select.
     */
    KHR_materials_variants.prototype.selectVariant = function (rootMesh, variantName) {
        return KHR_materials_variants.SelectVariant(rootMesh, variantName);
    };
    /**
     * Reset back to the original before selecting a variant.
     * @param rootMesh The glTF root mesh
     */
    KHR_materials_variants.Reset = function (rootMesh) {
        var extensionMetadata = this._GetExtensionMetadata(rootMesh);
        if (!extensionMetadata) {
            throw new Error("Cannot reset on a glTF mesh that does not have the " + NAME + " extension");
        }
        for (var _i = 0, _a = extensionMetadata.original; _i < _a.length; _i++) {
            var entry = _a[_i];
            entry.mesh.material = entry.material;
        }
        extensionMetadata.lastSelected = null;
    };
    /**
     * Reset back to the original before selecting a variant.
     * @param rootMesh The glTF root mesh
     */
    KHR_materials_variants.prototype.reset = function (rootMesh) {
        return KHR_materials_variants.Reset(rootMesh);
    };
    /**
     * Gets the last selected variant name(s) or null if original.
     * @param rootMesh The glTF root mesh
     * @returns The selected variant name(s).
     */
    KHR_materials_variants.GetLastSelectedVariant = function (rootMesh) {
        var extensionMetadata = this._GetExtensionMetadata(rootMesh);
        if (!extensionMetadata) {
            throw new Error("Cannot get the last selected variant on a glTF mesh that does not have the " + NAME + " extension");
        }
        return extensionMetadata.lastSelected;
    };
    /**
     * Gets the last selected variant name(s) or null if original.
     * @param rootMesh The glTF root mesh
     * @returns The selected variant name(s).
     */
    KHR_materials_variants.prototype.getLastSelectedVariant = function (rootMesh) {
        return KHR_materials_variants.GetLastSelectedVariant(rootMesh);
    };
    KHR_materials_variants._GetExtensionMetadata = function (rootMesh) {
        var _a, _b;
        return ((_b = (_a = rootMesh === null || rootMesh === void 0 ? void 0 : rootMesh.metadata) === null || _a === void 0 ? void 0 : _a.gltf) === null || _b === void 0 ? void 0 : _b[NAME]) || null;
    };
    /** @hidden */
    KHR_materials_variants.prototype.onLoading = function () {
        var extensions = this._loader.gltf.extensions;
        if (extensions && extensions[this.name]) {
            var extension = extensions[this.name];
            this._variants = extension.variants;
        }
    };
    /** @hidden */
    KHR_materials_variants.prototype._loadMeshPrimitiveAsync = function (context, name, node, mesh, primitive, assign) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].LoadExtensionAsync(context, primitive, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader._loadMeshPrimitiveAsync(context, name, node, mesh, primitive, function (babylonMesh) {
                assign(babylonMesh);
                if (babylonMesh instanceof babylonjs_Meshes_mesh__WEBPACK_IMPORTED_MODULE_1__["Mesh"]) {
                    var babylonDrawMode = _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"]._GetDrawMode(context, primitive.mode);
                    var root = _this._loader.rootBabylonMesh;
                    var metadata = (root.metadata = root.metadata || {});
                    var gltf = (metadata.gltf = metadata.gltf || {});
                    var extensionMetadata_1 = (gltf[NAME] = gltf[NAME] || { lastSelected: null, original: [], variants: {} });
                    // Store the original material.
                    extensionMetadata_1.original.push({ mesh: babylonMesh, material: babylonMesh.material });
                    var _loop_1 = function (mappingIndex) {
                        var mapping = extension.mappings[mappingIndex];
                        var material = _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["ArrayItem"].Get(extensionContext + "/mappings/" + mappingIndex + "/material", _this._loader.gltf.materials, mapping.material);
                        promises.push(_this._loader._loadMaterialAsync("#/materials/" + mapping.material, material, babylonMesh, babylonDrawMode, function (babylonMaterial) {
                            for (var mappingVariantIndex = 0; mappingVariantIndex < mapping.variants.length; ++mappingVariantIndex) {
                                var variantIndex = mapping.variants[mappingVariantIndex];
                                var variant = _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["ArrayItem"].Get("/extensions/" + NAME + "/variants/" + variantIndex, _this._variants, variantIndex);
                                extensionMetadata_1.variants[variant.name] = extensionMetadata_1.variants[variant.name] || [];
                                extensionMetadata_1.variants[variant.name].push({
                                    mesh: babylonMesh,
                                    material: babylonMaterial
                                });
                            }
                        }));
                    };
                    // For each mapping, look at the variants and make a new entry for them.
                    for (var mappingIndex = 0; mappingIndex < extension.mappings.length; ++mappingIndex) {
                        _loop_1(mappingIndex);
                    }
                }
            }));
            return Promise.all(promises).then(function (_a) {
                var babylonMesh = _a[0];
                return babylonMesh;
            });
        });
    };
    return KHR_materials_variants;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_materials_variants(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts":
/*!******************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_mesh_quantization.ts ***!
  \******************************************************/
/*! exports provided: KHR_mesh_quantization */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return KHR_mesh_quantization; });
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");

var NAME = "KHR_mesh_quantization";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization)
 */
var KHR_mesh_quantization = /** @class */ (function () {
    /** @hidden */
    function KHR_mesh_quantization(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this.enabled = loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_mesh_quantization.prototype.dispose = function () {
    };
    return KHR_mesh_quantization;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_mesh_quantization(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_texture_basisu.ts":
/*!***************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_texture_basisu.ts ***!
  \***************************************************/
/*! exports provided: KHR_texture_basisu */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return KHR_texture_basisu; });
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");

var NAME = "KHR_texture_basisu";
/**
 * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1751)
 * !!! Experimental Extension Subject to Changes !!!
 */
var KHR_texture_basisu = /** @class */ (function () {
    /** @hidden */
    function KHR_texture_basisu(loader) {
        /** The name of this extension. */
        this.name = NAME;
        this._loader = loader;
        this.enabled = loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_texture_basisu.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_texture_basisu.prototype._loadTextureAsync = function (context, texture, assign) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].LoadExtensionAsync(context, texture, this.name, function (extensionContext, extension) {
            var sampler = (texture.sampler == undefined ? _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].DefaultSampler : _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["ArrayItem"].Get(context + "/sampler", _this._loader.gltf.samplers, texture.sampler));
            var image = _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["ArrayItem"].Get(extensionContext + "/source", _this._loader.gltf.images, extension.source);
            return _this._loader._createTextureAsync(context, sampler, image, function (babylonTexture) {
                assign(babylonTexture);
            }, texture._textureInfo.nonColorData ? { useRGBAIfASTCBC7NotAvailableWhenUASTC: true } : undefined);
        });
    };
    return KHR_texture_basisu;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_texture_basisu(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_texture_transform.ts":
/*!******************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_texture_transform.ts ***!
  \******************************************************/
/*! exports provided: KHR_texture_transform */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_transform", function() { return KHR_texture_transform; });
/* harmony import */ var babylonjs_Materials_Textures_texture__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Materials/Textures/texture */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Materials_Textures_texture__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Materials_Textures_texture__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");


var NAME = "KHR_texture_transform";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Khronos/KHR_texture_transform)
 */
var KHR_texture_transform = /** @class */ (function () {
    /** @hidden */
    function KHR_texture_transform(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_texture_transform.prototype.dispose = function () {
        this._loader = null;
    };
    /** @hidden */
    KHR_texture_transform.prototype.loadTextureInfoAsync = function (context, textureInfo, assign) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, textureInfo, this.name, function (extensionContext, extension) {
            return _this._loader.loadTextureInfoAsync(context, textureInfo, function (babylonTexture) {
                if (!(babylonTexture instanceof babylonjs_Materials_Textures_texture__WEBPACK_IMPORTED_MODULE_0__["Texture"])) {
                    throw new Error(extensionContext + ": Texture type not supported");
                }
                if (extension.offset) {
                    babylonTexture.uOffset = extension.offset[0];
                    babylonTexture.vOffset = extension.offset[1];
                }
                // Always rotate around the origin.
                babylonTexture.uRotationCenter = 0;
                babylonTexture.vRotationCenter = 0;
                if (extension.rotation) {
                    babylonTexture.wAng = -extension.rotation;
                }
                if (extension.scale) {
                    babylonTexture.uScale = extension.scale[0];
                    babylonTexture.vScale = extension.scale[1];
                }
                if (extension.texCoord != undefined) {
                    babylonTexture.coordinatesIndex = extension.texCoord;
                }
                assign(babylonTexture);
            });
        });
    };
    return KHR_texture_transform;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_texture_transform(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/KHR_xmp_json_ld.ts":
/*!************************************************!*\
  !*** ./glTF/2.0/Extensions/KHR_xmp_json_ld.ts ***!
  \************************************************/
/*! exports provided: KHR_xmp_json_ld */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_xmp_json_ld", function() { return KHR_xmp_json_ld; });
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");

var NAME = "KHR_xmp_json_ld";
/**
 * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1893)
 * !!! Experimental Extension Subject to Changes !!!
 */
var KHR_xmp_json_ld = /** @class */ (function () {
    /** @hidden */
    function KHR_xmp_json_ld(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 100;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    KHR_xmp_json_ld.prototype.dispose = function () {
        this._loader = null;
    };
    /**
     * Called after the loader state changes to LOADING.
     */
    KHR_xmp_json_ld.prototype.onLoading = function () {
        var _a, _b, _c;
        var xmp_gltf = (_a = this._loader.gltf.extensions) === null || _a === void 0 ? void 0 : _a.KHR_xmp_json_ld;
        var xmp_node = (_c = (_b = this._loader.gltf.asset) === null || _b === void 0 ? void 0 : _b.extensions) === null || _c === void 0 ? void 0 : _c.KHR_xmp_json_ld;
        if (xmp_gltf && xmp_node) {
            var packet = +xmp_node.packet;
            if (xmp_gltf.packets && packet < xmp_gltf.packets.length) {
                this._loader.rootBabylonMesh.metadata = this._loader.rootBabylonMesh.metadata || {};
                this._loader.rootBabylonMesh.metadata.xmp = xmp_gltf.packets[packet];
            }
        }
    };
    return KHR_xmp_json_ld;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_xmp_json_ld(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/MSFT_audio_emitter.ts":
/*!***************************************************!*\
  !*** ./glTF/2.0/Extensions/MSFT_audio_emitter.ts ***!
  \***************************************************/
/*! exports provided: MSFT_audio_emitter */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "MSFT_audio_emitter", function() { return MSFT_audio_emitter; });
/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Maths/math.vector */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");






var NAME = "MSFT_audio_emitter";
/**
 * [Specification](https://github.com/najadojo/glTF/tree/MSFT_audio_emitter/extensions/2.0/Vendor/MSFT_audio_emitter)
 */
var MSFT_audio_emitter = /** @class */ (function () {
    /** @hidden */
    function MSFT_audio_emitter(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    MSFT_audio_emitter.prototype.dispose = function () {
        this._loader = null;
        this._clips = null;
        this._emitters = null;
    };
    /** @hidden */
    MSFT_audio_emitter.prototype.onLoading = function () {
        var extensions = this._loader.gltf.extensions;
        if (extensions && extensions[this.name]) {
            var extension = extensions[this.name];
            this._clips = extension.clips;
            this._emitters = extension.emitters;
            _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Assign(this._clips);
            _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Assign(this._emitters);
        }
    };
    /** @hidden */
    MSFT_audio_emitter.prototype.loadSceneAsync = function (context, scene) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, scene, this.name, function (extensionContext, extension) {
            var promises = new Array();
            promises.push(_this._loader.loadSceneAsync(context, scene));
            for (var _i = 0, _a = extension.emitters; _i < _a.length; _i++) {
                var emitterIndex = _a[_i];
                var emitter = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(extensionContext + "/emitters", _this._emitters, emitterIndex);
                if (emitter.refDistance != undefined || emitter.maxDistance != undefined || emitter.rolloffFactor != undefined ||
                    emitter.distanceModel != undefined || emitter.innerAngle != undefined || emitter.outerAngle != undefined) {
                    throw new Error(extensionContext + ": Direction or Distance properties are not allowed on emitters attached to a scene");
                }
                promises.push(_this._loadEmitterAsync(extensionContext + "/emitters/" + emitter.index, emitter));
            }
            return Promise.all(promises).then(function () { });
        });
    };
    /** @hidden */
    MSFT_audio_emitter.prototype.loadNodeAsync = function (context, node, assign) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, node, this.name, function (extensionContext, extension) {
            var promises = new Array();
            return _this._loader.loadNodeAsync(extensionContext, node, function (babylonMesh) {
                var _loop_1 = function (emitterIndex) {
                    var emitter = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(extensionContext + "/emitters", _this._emitters, emitterIndex);
                    promises.push(_this._loadEmitterAsync(extensionContext + "/emitters/" + emitter.index, emitter).then(function () {
                        for (var _i = 0, _a = emitter._babylonSounds; _i < _a.length; _i++) {
                            var sound = _a[_i];
                            sound.attachToMesh(babylonMesh);
                            if (emitter.innerAngle != undefined || emitter.outerAngle != undefined) {
                                sound.setLocalDirectionToMesh(babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].Forward());
                                sound.setDirectionalCone(2 * babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Tools"].ToDegrees(emitter.innerAngle == undefined ? Math.PI : emitter.innerAngle), 2 * babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Tools"].ToDegrees(emitter.outerAngle == undefined ? Math.PI : emitter.outerAngle), 0);
                            }
                        }
                    }));
                };
                for (var _i = 0, _a = extension.emitters; _i < _a.length; _i++) {
                    var emitterIndex = _a[_i];
                    _loop_1(emitterIndex);
                }
                assign(babylonMesh);
            }).then(function (babylonMesh) {
                return Promise.all(promises).then(function () {
                    return babylonMesh;
                });
            });
        });
    };
    /** @hidden */
    MSFT_audio_emitter.prototype.loadAnimationAsync = function (context, animation) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, animation, this.name, function (extensionContext, extension) {
            return _this._loader.loadAnimationAsync(context, animation).then(function (babylonAnimationGroup) {
                var promises = new Array();
                _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Assign(extension.events);
                for (var _i = 0, _a = extension.events; _i < _a.length; _i++) {
                    var event_1 = _a[_i];
                    promises.push(_this._loadAnimationEventAsync(extensionContext + "/events/" + event_1.index, context, animation, event_1, babylonAnimationGroup));
                }
                return Promise.all(promises).then(function () {
                    return babylonAnimationGroup;
                });
            });
        });
    };
    MSFT_audio_emitter.prototype._loadClipAsync = function (context, clip) {
        if (clip._objectURL) {
            return clip._objectURL;
        }
        var promise;
        if (clip.uri) {
            promise = this._loader.loadUriAsync(context, clip, clip.uri);
        }
        else {
            var bufferView = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(context + "/bufferView", this._loader.gltf.bufferViews, clip.bufferView);
            promise = this._loader.loadBufferViewAsync("/bufferViews/" + bufferView.index, bufferView);
        }
        clip._objectURL = promise.then(function (data) {
            return URL.createObjectURL(new Blob([data], { type: clip.mimeType }));
        });
        return clip._objectURL;
    };
    MSFT_audio_emitter.prototype._loadEmitterAsync = function (context, emitter) {
        var _this = this;
        emitter._babylonSounds = emitter._babylonSounds || [];
        if (!emitter._babylonData) {
            var clipPromises = new Array();
            var name_1 = emitter.name || "emitter" + emitter.index;
            var options_1 = {
                loop: false,
                autoplay: false,
                volume: emitter.volume == undefined ? 1 : emitter.volume,
            };
            var _loop_2 = function (i) {
                var clipContext = "/extensions/" + this_1.name + "/clips";
                var clip = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(clipContext, this_1._clips, emitter.clips[i].clip);
                clipPromises.push(this_1._loadClipAsync(clipContext + "/" + emitter.clips[i].clip, clip).then(function (objectURL) {
                    var sound = emitter._babylonSounds[i] = new babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Sound"](name_1, objectURL, _this._loader.babylonScene, null, options_1);
                    sound.refDistance = emitter.refDistance || 1;
                    sound.maxDistance = emitter.maxDistance || 256;
                    sound.rolloffFactor = emitter.rolloffFactor || 1;
                    sound.distanceModel = emitter.distanceModel || 'exponential';
                    sound._positionInEmitterSpace = true;
                }));
            };
            var this_1 = this;
            for (var i = 0; i < emitter.clips.length; i++) {
                _loop_2(i);
            }
            var promise = Promise.all(clipPromises).then(function () {
                var weights = emitter.clips.map(function (clip) { return clip.weight || 1; });
                var weightedSound = new babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["WeightedSound"](emitter.loop || false, emitter._babylonSounds, weights);
                if (emitter.innerAngle) {
                    weightedSound.directionalConeInnerAngle = 2 * babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Tools"].ToDegrees(emitter.innerAngle);
                }
                if (emitter.outerAngle) {
                    weightedSound.directionalConeOuterAngle = 2 * babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Tools"].ToDegrees(emitter.outerAngle);
                }
                if (emitter.volume) {
                    weightedSound.volume = emitter.volume;
                }
                emitter._babylonData.sound = weightedSound;
            });
            emitter._babylonData = {
                loaded: promise
            };
        }
        return emitter._babylonData.loaded;
    };
    MSFT_audio_emitter.prototype._getEventAction = function (context, sound, action, time, startOffset) {
        switch (action) {
            case "play" /* play */: {
                return function (currentFrame) {
                    var frameOffset = (startOffset || 0) + (currentFrame - time);
                    sound.play(frameOffset);
                };
            }
            case "stop" /* stop */: {
                return function (currentFrame) {
                    sound.stop();
                };
            }
            case "pause" /* pause */: {
                return function (currentFrame) {
                    sound.pause();
                };
            }
            default: {
                throw new Error(context + ": Unsupported action " + action);
            }
        }
    };
    MSFT_audio_emitter.prototype._loadAnimationEventAsync = function (context, animationContext, animation, event, babylonAnimationGroup) {
        var _this = this;
        if (babylonAnimationGroup.targetedAnimations.length == 0) {
            return Promise.resolve();
        }
        var babylonAnimation = babylonAnimationGroup.targetedAnimations[0];
        var emitterIndex = event.emitter;
        var emitter = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get("/extensions/" + this.name + "/emitters", this._emitters, emitterIndex);
        return this._loadEmitterAsync(context, emitter).then(function () {
            var sound = emitter._babylonData.sound;
            if (sound) {
                var babylonAnimationEvent = new babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["AnimationEvent"](event.time, _this._getEventAction(context, sound, event.action, event.time, event.startOffset));
                babylonAnimation.animation.addEvent(babylonAnimationEvent);
                // Make sure all started audio stops when this animation is terminated.
                babylonAnimationGroup.onAnimationGroupEndObservable.add(function () {
                    sound.stop();
                });
                babylonAnimationGroup.onAnimationGroupPauseObservable.add(function () {
                    sound.pause();
                });
            }
        });
    };
    return MSFT_audio_emitter;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new MSFT_audio_emitter(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/MSFT_lod.ts":
/*!*****************************************!*\
  !*** ./glTF/2.0/Extensions/MSFT_lod.ts ***!
  \*****************************************/
/*! exports provided: MSFT_lod */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "MSFT_lod", function() { return MSFT_lod; });
/* harmony import */ var babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Misc/observable */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");



var NAME = "MSFT_lod";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/MSFT_lod)
 */
var MSFT_lod = /** @class */ (function () {
    /** @hidden */
    function MSFT_lod(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 100;
        /**
         * Maximum number of LODs to load, starting from the lowest LOD.
         */
        this.maxLODsToLoad = 10;
        /**
         * Observable raised when all node LODs of one level are loaded.
         * The event data is the index of the loaded LOD starting from zero.
         * Dispose the loader to cancel the loading of the next level of LODs.
         */
        this.onNodeLODsLoadedObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        /**
         * Observable raised when all material LODs of one level are loaded.
         * The event data is the index of the loaded LOD starting from zero.
         * Dispose the loader to cancel the loading of the next level of LODs.
         */
        this.onMaterialLODsLoadedObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        this._bufferLODs = new Array();
        this._nodeIndexLOD = null;
        this._nodeSignalLODs = new Array();
        this._nodePromiseLODs = new Array();
        this._nodeBufferLODs = new Array();
        this._materialIndexLOD = null;
        this._materialSignalLODs = new Array();
        this._materialPromiseLODs = new Array();
        this._materialBufferLODs = new Array();
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @hidden */
    MSFT_lod.prototype.dispose = function () {
        this._loader = null;
        this._nodeIndexLOD = null;
        this._nodeSignalLODs.length = 0;
        this._nodePromiseLODs.length = 0;
        this._nodeBufferLODs.length = 0;
        this._materialIndexLOD = null;
        this._materialSignalLODs.length = 0;
        this._materialPromiseLODs.length = 0;
        this._materialBufferLODs.length = 0;
        this.onMaterialLODsLoadedObservable.clear();
        this.onNodeLODsLoadedObservable.clear();
    };
    /** @hidden */
    MSFT_lod.prototype.onReady = function () {
        var _this = this;
        var _loop_1 = function (indexLOD) {
            var promise = Promise.all(this_1._nodePromiseLODs[indexLOD]).then(function () {
                if (indexLOD !== 0) {
                    _this._loader.endPerformanceCounter("Node LOD " + indexLOD);
                    _this._loader.log("Loaded node LOD " + indexLOD);
                }
                _this.onNodeLODsLoadedObservable.notifyObservers(indexLOD);
                if (indexLOD !== _this._nodePromiseLODs.length - 1) {
                    _this._loader.startPerformanceCounter("Node LOD " + (indexLOD + 1));
                    _this._loadBufferLOD(_this._nodeBufferLODs, indexLOD + 1);
                    if (_this._nodeSignalLODs[indexLOD]) {
                        _this._nodeSignalLODs[indexLOD].resolve();
                    }
                }
            });
            this_1._loader._completePromises.push(promise);
        };
        var this_1 = this;
        for (var indexLOD = 0; indexLOD < this._nodePromiseLODs.length; indexLOD++) {
            _loop_1(indexLOD);
        }
        var _loop_2 = function (indexLOD) {
            var promise = Promise.all(this_2._materialPromiseLODs[indexLOD]).then(function () {
                if (indexLOD !== 0) {
                    _this._loader.endPerformanceCounter("Material LOD " + indexLOD);
                    _this._loader.log("Loaded material LOD " + indexLOD);
                }
                _this.onMaterialLODsLoadedObservable.notifyObservers(indexLOD);
                if (indexLOD !== _this._materialPromiseLODs.length - 1) {
                    _this._loader.startPerformanceCounter("Material LOD " + (indexLOD + 1));
                    _this._loadBufferLOD(_this._materialBufferLODs, indexLOD + 1);
                    if (_this._materialSignalLODs[indexLOD]) {
                        _this._materialSignalLODs[indexLOD].resolve();
                    }
                }
            });
            this_2._loader._completePromises.push(promise);
        };
        var this_2 = this;
        for (var indexLOD = 0; indexLOD < this._materialPromiseLODs.length; indexLOD++) {
            _loop_2(indexLOD);
        }
    };
    /** @hidden */
    MSFT_lod.prototype.loadSceneAsync = function (context, scene) {
        var promise = this._loader.loadSceneAsync(context, scene);
        this._loadBufferLOD(this._bufferLODs, 0);
        return promise;
    };
    /** @hidden */
    MSFT_lod.prototype.loadNodeAsync = function (context, node, assign) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, node, this.name, function (extensionContext, extension) {
            var firstPromise;
            var nodeLODs = _this._getLODs(extensionContext, node, _this._loader.gltf.nodes, extension.ids);
            _this._loader.logOpen("" + extensionContext);
            var _loop_3 = function (indexLOD) {
                var nodeLOD = nodeLODs[indexLOD];
                if (indexLOD !== 0) {
                    _this._nodeIndexLOD = indexLOD;
                    _this._nodeSignalLODs[indexLOD] = _this._nodeSignalLODs[indexLOD] || new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Deferred"]();
                }
                var assign_1 = function (babylonTransformNode) { babylonTransformNode.setEnabled(false); };
                var promise = _this._loader.loadNodeAsync("/nodes/" + nodeLOD.index, nodeLOD, assign_1).then(function (babylonMesh) {
                    if (indexLOD !== 0) {
                        // TODO: should not rely on _babylonTransformNode
                        var previousNodeLOD = nodeLODs[indexLOD - 1];
                        if (previousNodeLOD._babylonTransformNode) {
                            _this._disposeTransformNode(previousNodeLOD._babylonTransformNode);
                            delete previousNodeLOD._babylonTransformNode;
                        }
                    }
                    babylonMesh.setEnabled(true);
                    return babylonMesh;
                });
                _this._nodePromiseLODs[indexLOD] = _this._nodePromiseLODs[indexLOD] || [];
                if (indexLOD === 0) {
                    firstPromise = promise;
                }
                else {
                    _this._nodeIndexLOD = null;
                    _this._nodePromiseLODs[indexLOD].push(promise);
                }
            };
            for (var indexLOD = 0; indexLOD < nodeLODs.length; indexLOD++) {
                _loop_3(indexLOD);
            }
            _this._loader.logClose();
            return firstPromise;
        });
    };
    /** @hidden */
    MSFT_lod.prototype._loadMaterialAsync = function (context, material, babylonMesh, babylonDrawMode, assign) {
        var _this = this;
        // Don't load material LODs if already loading a node LOD.
        if (this._nodeIndexLOD) {
            return null;
        }
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, material, this.name, function (extensionContext, extension) {
            var firstPromise;
            var materialLODs = _this._getLODs(extensionContext, material, _this._loader.gltf.materials, extension.ids);
            _this._loader.logOpen("" + extensionContext);
            var _loop_4 = function (indexLOD) {
                var materialLOD = materialLODs[indexLOD];
                if (indexLOD !== 0) {
                    _this._materialIndexLOD = indexLOD;
                }
                var promise = _this._loader._loadMaterialAsync("/materials/" + materialLOD.index, materialLOD, babylonMesh, babylonDrawMode, function (babylonMaterial) {
                    if (indexLOD === 0) {
                        assign(babylonMaterial);
                    }
                }).then(function (babylonMaterial) {
                    if (indexLOD !== 0) {
                        assign(babylonMaterial);
                        // TODO: should not rely on _data
                        var previousDataLOD = materialLODs[indexLOD - 1]._data;
                        if (previousDataLOD[babylonDrawMode]) {
                            _this._disposeMaterials([previousDataLOD[babylonDrawMode].babylonMaterial]);
                            delete previousDataLOD[babylonDrawMode];
                        }
                    }
                    return babylonMaterial;
                });
                _this._materialPromiseLODs[indexLOD] = _this._materialPromiseLODs[indexLOD] || [];
                if (indexLOD === 0) {
                    firstPromise = promise;
                }
                else {
                    _this._materialIndexLOD = null;
                    _this._materialPromiseLODs[indexLOD].push(promise);
                }
            };
            for (var indexLOD = 0; indexLOD < materialLODs.length; indexLOD++) {
                _loop_4(indexLOD);
            }
            _this._loader.logClose();
            return firstPromise;
        });
    };
    /** @hidden */
    MSFT_lod.prototype._loadUriAsync = function (context, property, uri) {
        var _this = this;
        // Defer the loading of uris if loading a node or material LOD.
        if (this._nodeIndexLOD !== null) {
            this._loader.log("deferred");
            var previousIndexLOD = this._nodeIndexLOD - 1;
            this._nodeSignalLODs[previousIndexLOD] = this._nodeSignalLODs[previousIndexLOD] || new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Deferred"]();
            return this._nodeSignalLODs[this._nodeIndexLOD - 1].promise.then(function () {
                return _this._loader.loadUriAsync(context, property, uri);
            });
        }
        else if (this._materialIndexLOD !== null) {
            this._loader.log("deferred");
            var previousIndexLOD = this._materialIndexLOD - 1;
            this._materialSignalLODs[previousIndexLOD] = this._materialSignalLODs[previousIndexLOD] || new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Deferred"]();
            return this._materialSignalLODs[previousIndexLOD].promise.then(function () {
                return _this._loader.loadUriAsync(context, property, uri);
            });
        }
        return null;
    };
    /** @hidden */
    MSFT_lod.prototype.loadBufferAsync = function (context, buffer, byteOffset, byteLength) {
        if (this._loader.parent.useRangeRequests && !buffer.uri) {
            if (!this._loader.bin) {
                throw new Error(context + ": Uri is missing or the binary glTF is missing its binary chunk");
            }
            var loadAsync = function (bufferLODs, indexLOD) {
                var start = byteOffset;
                var end = start + byteLength - 1;
                var bufferLOD = bufferLODs[indexLOD];
                if (bufferLOD) {
                    bufferLOD.start = Math.min(bufferLOD.start, start);
                    bufferLOD.end = Math.max(bufferLOD.end, end);
                }
                else {
                    bufferLOD = { start: start, end: end, loaded: new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Deferred"]() };
                    bufferLODs[indexLOD] = bufferLOD;
                }
                return bufferLOD.loaded.promise.then(function (data) {
                    return new Uint8Array(data.buffer, data.byteOffset + byteOffset - bufferLOD.start, byteLength);
                });
            };
            this._loader.log("deferred");
            if (this._nodeIndexLOD !== null) {
                return loadAsync(this._nodeBufferLODs, this._nodeIndexLOD);
            }
            else if (this._materialIndexLOD !== null) {
                return loadAsync(this._materialBufferLODs, this._materialIndexLOD);
            }
            else {
                return loadAsync(this._bufferLODs, 0);
            }
        }
        return null;
    };
    MSFT_lod.prototype._loadBufferLOD = function (bufferLODs, indexLOD) {
        var bufferLOD = bufferLODs[indexLOD];
        if (bufferLOD) {
            this._loader.log("Loading buffer range [" + bufferLOD.start + "-" + bufferLOD.end + "]");
            this._loader.bin.readAsync(bufferLOD.start, bufferLOD.end - bufferLOD.start + 1).then(function (data) {
                bufferLOD.loaded.resolve(data);
            }, function (error) {
                bufferLOD.loaded.reject(error);
            });
        }
    };
    /**
     * Gets an array of LOD properties from lowest to highest.
     */
    MSFT_lod.prototype._getLODs = function (context, property, array, ids) {
        if (this.maxLODsToLoad <= 0) {
            throw new Error("maxLODsToLoad must be greater than zero");
        }
        var properties = new Array();
        for (var i = ids.length - 1; i >= 0; i--) {
            properties.push(_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(context + "/ids/" + ids[i], array, ids[i]));
            if (properties.length === this.maxLODsToLoad) {
                return properties;
            }
        }
        properties.push(property);
        return properties;
    };
    MSFT_lod.prototype._disposeTransformNode = function (babylonTransformNode) {
        var _this = this;
        var babylonMaterials = new Array();
        var babylonMaterial = babylonTransformNode.material;
        if (babylonMaterial) {
            babylonMaterials.push(babylonMaterial);
        }
        for (var _i = 0, _a = babylonTransformNode.getChildMeshes(); _i < _a.length; _i++) {
            var babylonMesh = _a[_i];
            if (babylonMesh.material) {
                babylonMaterials.push(babylonMesh.material);
            }
        }
        babylonTransformNode.dispose();
        var babylonMaterialsToDispose = babylonMaterials.filter(function (babylonMaterial) { return _this._loader.babylonScene.meshes.every(function (mesh) { return mesh.material != babylonMaterial; }); });
        this._disposeMaterials(babylonMaterialsToDispose);
    };
    MSFT_lod.prototype._disposeMaterials = function (babylonMaterials) {
        var babylonTextures = {};
        for (var _i = 0, babylonMaterials_1 = babylonMaterials; _i < babylonMaterials_1.length; _i++) {
            var babylonMaterial = babylonMaterials_1[_i];
            for (var _a = 0, _b = babylonMaterial.getActiveTextures(); _a < _b.length; _a++) {
                var babylonTexture = _b[_a];
                babylonTextures[babylonTexture.uniqueId] = babylonTexture;
            }
            babylonMaterial.dispose();
        }
        for (var uniqueId in babylonTextures) {
            for (var _c = 0, _d = this._loader.babylonScene.materials; _c < _d.length; _c++) {
                var babylonMaterial = _d[_c];
                if (babylonMaterial.hasTexture(babylonTextures[uniqueId])) {
                    delete babylonTextures[uniqueId];
                }
            }
        }
        for (var uniqueId in babylonTextures) {
            babylonTextures[uniqueId].dispose();
        }
    };
    return MSFT_lod;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new MSFT_lod(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/MSFT_minecraftMesh.ts":
/*!***************************************************!*\
  !*** ./glTF/2.0/Extensions/MSFT_minecraftMesh.ts ***!
  \***************************************************/
/*! exports provided: MSFT_minecraftMesh */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "MSFT_minecraftMesh", function() { return MSFT_minecraftMesh; });
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Materials/PBR/pbrMaterial */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");


var NAME = "MSFT_minecraftMesh";
/** @hidden */
var MSFT_minecraftMesh = /** @class */ (function () {
    function MSFT_minecraftMesh(loader) {
        this.name = NAME;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    MSFT_minecraftMesh.prototype.dispose = function () {
        this._loader = null;
    };
    MSFT_minecraftMesh.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtraAsync(context, material, this.name, function (extraContext, extra) {
            if (extra) {
                if (!(babylonMaterial instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
                    throw new Error(extraContext + ": Material type not supported");
                }
                var promise = _this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial);
                if (babylonMaterial.needAlphaBlending()) {
                    babylonMaterial.forceDepthWrite = true;
                    babylonMaterial.separateCullingPass = true;
                }
                babylonMaterial.backFaceCulling = babylonMaterial.forceDepthWrite;
                babylonMaterial.twoSidedLighting = true;
                return promise;
            }
            return null;
        });
    };
    return MSFT_minecraftMesh;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new MSFT_minecraftMesh(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/MSFT_sRGBFactors.ts":
/*!*************************************************!*\
  !*** ./glTF/2.0/Extensions/MSFT_sRGBFactors.ts ***!
  \*************************************************/
/*! exports provided: MSFT_sRGBFactors */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "MSFT_sRGBFactors", function() { return MSFT_sRGBFactors; });
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Materials/PBR/pbrMaterial */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");


var NAME = "MSFT_sRGBFactors";
/** @hidden */
var MSFT_sRGBFactors = /** @class */ (function () {
    function MSFT_sRGBFactors(loader) {
        this.name = NAME;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    MSFT_sRGBFactors.prototype.dispose = function () {
        this._loader = null;
    };
    MSFT_sRGBFactors.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtraAsync(context, material, this.name, function (extraContext, extra) {
            if (extra) {
                if (!(babylonMaterial instanceof babylonjs_Materials_PBR_pbrMaterial__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
                    throw new Error(extraContext + ": Material type not supported");
                }
                var promise = _this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial);
                if (!babylonMaterial.albedoTexture) {
                    babylonMaterial.albedoColor.toLinearSpaceToRef(babylonMaterial.albedoColor);
                }
                if (!babylonMaterial.reflectivityTexture) {
                    babylonMaterial.reflectivityColor.toLinearSpaceToRef(babylonMaterial.reflectivityColor);
                }
                return promise;
            }
            return null;
        });
    };
    return MSFT_sRGBFactors;
}());

_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new MSFT_sRGBFactors(loader); });


/***/ }),

/***/ "./glTF/2.0/Extensions/index.ts":
/*!**************************************!*\
  !*** ./glTF/2.0/Extensions/index.ts ***!
  \**************************************/
/*! exports provided: EXT_lights_image_based, EXT_mesh_gpu_instancing, EXT_meshopt_compression, EXT_texture_webp, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_materials_ior, KHR_materials_variants, KHR_materials_transmission, KHR_materials_translucency, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, KHR_xmp_json_ld, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _EXT_lights_image_based__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./EXT_lights_image_based */ "./glTF/2.0/Extensions/EXT_lights_image_based.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "EXT_lights_image_based", function() { return _EXT_lights_image_based__WEBPACK_IMPORTED_MODULE_0__["EXT_lights_image_based"]; });

/* harmony import */ var _EXT_mesh_gpu_instancing__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./EXT_mesh_gpu_instancing */ "./glTF/2.0/Extensions/EXT_mesh_gpu_instancing.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "EXT_mesh_gpu_instancing", function() { return _EXT_mesh_gpu_instancing__WEBPACK_IMPORTED_MODULE_1__["EXT_mesh_gpu_instancing"]; });

/* harmony import */ var _EXT_meshopt_compression__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./EXT_meshopt_compression */ "./glTF/2.0/Extensions/EXT_meshopt_compression.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "EXT_meshopt_compression", function() { return _EXT_meshopt_compression__WEBPACK_IMPORTED_MODULE_2__["EXT_meshopt_compression"]; });

/* harmony import */ var _EXT_texture_webp__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./EXT_texture_webp */ "./glTF/2.0/Extensions/EXT_texture_webp.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "EXT_texture_webp", function() { return _EXT_texture_webp__WEBPACK_IMPORTED_MODULE_3__["EXT_texture_webp"]; });

/* harmony import */ var _KHR_draco_mesh_compression__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./KHR_draco_mesh_compression */ "./glTF/2.0/Extensions/KHR_draco_mesh_compression.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_draco_mesh_compression", function() { return _KHR_draco_mesh_compression__WEBPACK_IMPORTED_MODULE_4__["KHR_draco_mesh_compression"]; });

/* harmony import */ var _KHR_lights_punctual__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./KHR_lights_punctual */ "./glTF/2.0/Extensions/KHR_lights_punctual.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_lights", function() { return _KHR_lights_punctual__WEBPACK_IMPORTED_MODULE_5__["KHR_lights"]; });

/* harmony import */ var _KHR_materials_pbrSpecularGlossiness__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./KHR_materials_pbrSpecularGlossiness */ "./glTF/2.0/Extensions/KHR_materials_pbrSpecularGlossiness.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_pbrSpecularGlossiness", function() { return _KHR_materials_pbrSpecularGlossiness__WEBPACK_IMPORTED_MODULE_6__["KHR_materials_pbrSpecularGlossiness"]; });

/* harmony import */ var _KHR_materials_unlit__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./KHR_materials_unlit */ "./glTF/2.0/Extensions/KHR_materials_unlit.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_unlit", function() { return _KHR_materials_unlit__WEBPACK_IMPORTED_MODULE_7__["KHR_materials_unlit"]; });

/* harmony import */ var _KHR_materials_clearcoat__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./KHR_materials_clearcoat */ "./glTF/2.0/Extensions/KHR_materials_clearcoat.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_clearcoat", function() { return _KHR_materials_clearcoat__WEBPACK_IMPORTED_MODULE_8__["KHR_materials_clearcoat"]; });

/* harmony import */ var _KHR_materials_sheen__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./KHR_materials_sheen */ "./glTF/2.0/Extensions/KHR_materials_sheen.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_sheen", function() { return _KHR_materials_sheen__WEBPACK_IMPORTED_MODULE_9__["KHR_materials_sheen"]; });

/* harmony import */ var _KHR_materials_specular__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./KHR_materials_specular */ "./glTF/2.0/Extensions/KHR_materials_specular.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_specular", function() { return _KHR_materials_specular__WEBPACK_IMPORTED_MODULE_10__["KHR_materials_specular"]; });

/* harmony import */ var _KHR_materials_ior__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./KHR_materials_ior */ "./glTF/2.0/Extensions/KHR_materials_ior.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_ior", function() { return _KHR_materials_ior__WEBPACK_IMPORTED_MODULE_11__["KHR_materials_ior"]; });

/* harmony import */ var _KHR_materials_variants__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./KHR_materials_variants */ "./glTF/2.0/Extensions/KHR_materials_variants.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_variants", function() { return _KHR_materials_variants__WEBPACK_IMPORTED_MODULE_12__["KHR_materials_variants"]; });

/* harmony import */ var _KHR_materials_transmission__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./KHR_materials_transmission */ "./glTF/2.0/Extensions/KHR_materials_transmission.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_transmission", function() { return _KHR_materials_transmission__WEBPACK_IMPORTED_MODULE_13__["KHR_materials_transmission"]; });

/* harmony import */ var _KHR_materials_translucency__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./KHR_materials_translucency */ "./glTF/2.0/Extensions/KHR_materials_translucency.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_translucency", function() { return _KHR_materials_translucency__WEBPACK_IMPORTED_MODULE_14__["KHR_materials_translucency"]; });

/* harmony import */ var _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./KHR_mesh_quantization */ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_15__["KHR_mesh_quantization"]; });

/* harmony import */ var _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_16__ = __webpack_require__(/*! ./KHR_texture_basisu */ "./glTF/2.0/Extensions/KHR_texture_basisu.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_16__["KHR_texture_basisu"]; });

/* harmony import */ var _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_17__ = __webpack_require__(/*! ./KHR_texture_transform */ "./glTF/2.0/Extensions/KHR_texture_transform.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_transform", function() { return _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_17__["KHR_texture_transform"]; });

/* harmony import */ var _KHR_xmp_json_ld__WEBPACK_IMPORTED_MODULE_18__ = __webpack_require__(/*! ./KHR_xmp_json_ld */ "./glTF/2.0/Extensions/KHR_xmp_json_ld.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_xmp_json_ld", function() { return _KHR_xmp_json_ld__WEBPACK_IMPORTED_MODULE_18__["KHR_xmp_json_ld"]; });

/* harmony import */ var _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_19__ = __webpack_require__(/*! ./MSFT_audio_emitter */ "./glTF/2.0/Extensions/MSFT_audio_emitter.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_audio_emitter", function() { return _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_19__["MSFT_audio_emitter"]; });

/* harmony import */ var _MSFT_lod__WEBPACK_IMPORTED_MODULE_20__ = __webpack_require__(/*! ./MSFT_lod */ "./glTF/2.0/Extensions/MSFT_lod.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_lod", function() { return _MSFT_lod__WEBPACK_IMPORTED_MODULE_20__["MSFT_lod"]; });

/* harmony import */ var _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_21__ = __webpack_require__(/*! ./MSFT_minecraftMesh */ "./glTF/2.0/Extensions/MSFT_minecraftMesh.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_minecraftMesh", function() { return _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_21__["MSFT_minecraftMesh"]; });

/* harmony import */ var _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_22__ = __webpack_require__(/*! ./MSFT_sRGBFactors */ "./glTF/2.0/Extensions/MSFT_sRGBFactors.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_sRGBFactors", function() { return _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_22__["MSFT_sRGBFactors"]; });

/* harmony import */ var _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_23__ = __webpack_require__(/*! ./ExtrasAsMetadata */ "./glTF/2.0/Extensions/ExtrasAsMetadata.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "ExtrasAsMetadata", function() { return _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_23__["ExtrasAsMetadata"]; });



























/***/ }),

/***/ "./glTF/2.0/glTFLoader.ts":
/*!********************************!*\
  !*** ./glTF/2.0/glTFLoader.ts ***!
  \********************************/
/*! exports provided: ArrayItem, GLTFLoader */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ArrayItem", function() { return ArrayItem; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "GLTFLoader", function() { return GLTFLoader; });
/* harmony import */ var babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Misc/deferred */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFFileLoader */ "./glTF/glTFFileLoader.ts");


























/**
 * Helper class for working with arrays when loading the glTF asset
 */
var ArrayItem = /** @class */ (function () {
    function ArrayItem() {
    }
    /**
     * Gets an item from the given array.
     * @param context The context when loading the asset
     * @param array The array to get the item from
     * @param index The index to the array
     * @returns The array item
     */
    ArrayItem.Get = function (context, array, index) {
        if (!array || index == undefined || !array[index]) {
            throw new Error(context + ": Failed to find index (" + index + ")");
        }
        return array[index];
    };
    /**
     * Assign an `index` field to each item of the given array.
     * @param array The array of items
     */
    ArrayItem.Assign = function (array) {
        if (array) {
            for (var index = 0; index < array.length; index++) {
                array[index].index = index;
            }
        }
    };
    return ArrayItem;
}());

/**
 * The glTF 2.0 loader
 */
var GLTFLoader = /** @class */ (function () {
    /** @hidden */
    function GLTFLoader(parent) {
        /** @hidden */
        this._completePromises = new Array();
        /** @hidden */
        this._forAssetContainer = false;
        /** Storage */
        this._babylonLights = [];
        /** @hidden */
        this._disableInstancedMesh = 0;
        this._disposed = false;
        this._state = null;
        this._extensions = new Array();
        this._defaultBabylonMaterialData = {};
        this._parent = parent;
    }
    /**
     * Registers a loader extension.
     * @param name The name of the loader extension.
     * @param factory The factory function that creates the loader extension.
     */
    GLTFLoader.RegisterExtension = function (name, factory) {
        if (GLTFLoader.UnregisterExtension(name)) {
            babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn("Extension with the name '" + name + "' already exists");
        }
        GLTFLoader._RegisteredExtensions[name] = {
            factory: factory
        };
    };
    /**
     * Unregisters a loader extension.
     * @param name The name of the loader extension.
     * @returns A boolean indicating whether the extension has been unregistered
     */
    GLTFLoader.UnregisterExtension = function (name) {
        if (!GLTFLoader._RegisteredExtensions[name]) {
            return false;
        }
        delete GLTFLoader._RegisteredExtensions[name];
        return true;
    };
    Object.defineProperty(GLTFLoader.prototype, "state", {
        /**
         * The loader state.
         */
        get: function () {
            return this._state;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFLoader.prototype, "gltf", {
        /**
         * The object that represents the glTF JSON.
         */
        get: function () {
            return this._gltf;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFLoader.prototype, "bin", {
        /**
         * The BIN chunk of a binary glTF.
         */
        get: function () {
            return this._bin;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFLoader.prototype, "parent", {
        /**
         * The parent file loader.
         */
        get: function () {
            return this._parent;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFLoader.prototype, "babylonScene", {
        /**
         * The Babylon scene when loading the asset.
         */
        get: function () {
            return this._babylonScene;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFLoader.prototype, "rootBabylonMesh", {
        /**
         * The root Babylon mesh when loading the asset.
         */
        get: function () {
            return this._rootBabylonMesh;
        },
        enumerable: false,
        configurable: true
    });
    /** @hidden */
    GLTFLoader.prototype.dispose = function () {
        if (this._disposed) {
            return;
        }
        this._disposed = true;
        this._completePromises.length = 0;
        for (var name_1 in this._extensions) {
            var extension = this._extensions[name_1];
            extension.dispose && extension.dispose();
            delete this._extensions[name_1];
        }
        this._gltf = null;
        this._babylonScene = null;
        this._rootBabylonMesh = null;
        this._parent.dispose();
    };
    /** @hidden */
    GLTFLoader.prototype.importMeshAsync = function (meshesNames, scene, forAssetContainer, data, rootUrl, onProgress, fileName) {
        var _this = this;
        if (fileName === void 0) { fileName = ""; }
        return Promise.resolve().then(function () {
            _this._babylonScene = scene;
            _this._forAssetContainer = forAssetContainer;
            _this._loadData(data);
            var nodes = null;
            if (meshesNames) {
                var nodeMap_1 = {};
                if (_this._gltf.nodes) {
                    for (var _i = 0, _a = _this._gltf.nodes; _i < _a.length; _i++) {
                        var node = _a[_i];
                        if (node.name) {
                            nodeMap_1[node.name] = node.index;
                        }
                    }
                }
                var names = (meshesNames instanceof Array) ? meshesNames : [meshesNames];
                nodes = names.map(function (name) {
                    var node = nodeMap_1[name];
                    if (node === undefined) {
                        throw new Error("Failed to find node '" + name + "'");
                    }
                    return node;
                });
            }
            return _this._loadAsync(rootUrl, fileName, nodes, function () {
                return {
                    meshes: _this._getMeshes(),
                    particleSystems: [],
                    skeletons: _this._getSkeletons(),
                    animationGroups: _this._getAnimationGroups(),
                    lights: _this._babylonLights,
                    transformNodes: _this._getTransformNodes(),
                    geometries: _this._getGeometries()
                };
            });
        });
    };
    /** @hidden */
    GLTFLoader.prototype.loadAsync = function (scene, data, rootUrl, onProgress, fileName) {
        var _this = this;
        if (fileName === void 0) { fileName = ""; }
        return Promise.resolve().then(function () {
            _this._babylonScene = scene;
            _this._loadData(data);
            return _this._loadAsync(rootUrl, fileName, null, function () { return undefined; });
        });
    };
    GLTFLoader.prototype._loadAsync = function (rootUrl, fileName, nodes, resultFunc) {
        var _this = this;
        return Promise.resolve().then(function () {
            _this._rootUrl = rootUrl;
            _this._uniqueRootUrl = (!babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["StringTools"].StartsWith(rootUrl, "file:") && fileName) ? rootUrl : "" + rootUrl + Date.now() + "/";
            _this._fileName = fileName;
            _this._loadExtensions();
            _this._checkExtensions();
            var loadingToReadyCounterName = _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"][_glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"].LOADING] + " => " + _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"][_glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"].READY];
            var loadingToCompleteCounterName = _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"][_glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"].LOADING] + " => " + _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"][_glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"].COMPLETE];
            _this._parent._startPerformanceCounter(loadingToReadyCounterName);
            _this._parent._startPerformanceCounter(loadingToCompleteCounterName);
            _this._setState(_glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"].LOADING);
            _this._extensionsOnLoading();
            var promises = new Array();
            // Block the marking of materials dirty until the scene is loaded.
            var oldBlockMaterialDirtyMechanism = _this._babylonScene.blockMaterialDirtyMechanism;
            _this._babylonScene.blockMaterialDirtyMechanism = true;
            if (nodes) {
                promises.push(_this.loadSceneAsync("/nodes", { nodes: nodes, index: -1 }));
            }
            else if (_this._gltf.scene != undefined || (_this._gltf.scenes && _this._gltf.scenes[0])) {
                var scene = ArrayItem.Get("/scene", _this._gltf.scenes, _this._gltf.scene || 0);
                promises.push(_this.loadSceneAsync("/scenes/" + scene.index, scene));
            }
            if (_this.parent.loadAllMaterials && _this._gltf.materials) {
                for (var m = 0; m < _this._gltf.materials.length; ++m) {
                    var material = _this._gltf.materials[m];
                    var context_1 = "/materials/" + m;
                    var babylonDrawMode = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].TriangleFillMode;
                    promises.push(_this._loadMaterialAsync(context_1, material, null, babylonDrawMode, function (material) { }));
                }
            }
            // Restore the blocking of material dirty.
            _this._babylonScene.blockMaterialDirtyMechanism = oldBlockMaterialDirtyMechanism;
            if (_this._parent.compileMaterials) {
                promises.push(_this._compileMaterialsAsync());
            }
            if (_this._parent.compileShadowGenerators) {
                promises.push(_this._compileShadowGeneratorsAsync());
            }
            var resultPromise = Promise.all(promises).then(function () {
                if (_this._rootBabylonMesh) {
                    _this._rootBabylonMesh.setEnabled(true);
                }
                _this._extensionsOnReady();
                _this._setState(_glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"].READY);
                _this._startAnimations();
                return resultFunc();
            });
            return resultPromise.then(function (result) {
                _this._parent._endPerformanceCounter(loadingToReadyCounterName);
                babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Tools"].SetImmediate(function () {
                    if (!_this._disposed) {
                        Promise.all(_this._completePromises).then(function () {
                            _this._parent._endPerformanceCounter(loadingToCompleteCounterName);
                            _this._setState(_glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"].COMPLETE);
                            _this._parent.onCompleteObservable.notifyObservers(undefined);
                            _this._parent.onCompleteObservable.clear();
                            _this.dispose();
                        }, function (error) {
                            _this._parent.onErrorObservable.notifyObservers(error);
                            _this._parent.onErrorObservable.clear();
                            _this.dispose();
                        });
                    }
                });
                return result;
            });
        }).catch(function (error) {
            if (!_this._disposed) {
                _this._parent.onErrorObservable.notifyObservers(error);
                _this._parent.onErrorObservable.clear();
                _this.dispose();
            }
            throw error;
        });
    };
    GLTFLoader.prototype._loadData = function (data) {
        this._gltf = data.json;
        this._setupData();
        if (data.bin) {
            var buffers = this._gltf.buffers;
            if (buffers && buffers[0] && !buffers[0].uri) {
                var binaryBuffer = buffers[0];
                if (binaryBuffer.byteLength < data.bin.byteLength - 3 || binaryBuffer.byteLength > data.bin.byteLength) {
                    babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn("Binary buffer length (" + binaryBuffer.byteLength + ") from JSON does not match chunk length (" + data.bin.byteLength + ")");
                }
                this._bin = data.bin;
            }
            else {
                babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn("Unexpected BIN chunk");
            }
        }
    };
    GLTFLoader.prototype._setupData = function () {
        ArrayItem.Assign(this._gltf.accessors);
        ArrayItem.Assign(this._gltf.animations);
        ArrayItem.Assign(this._gltf.buffers);
        ArrayItem.Assign(this._gltf.bufferViews);
        ArrayItem.Assign(this._gltf.cameras);
        ArrayItem.Assign(this._gltf.images);
        ArrayItem.Assign(this._gltf.materials);
        ArrayItem.Assign(this._gltf.meshes);
        ArrayItem.Assign(this._gltf.nodes);
        ArrayItem.Assign(this._gltf.samplers);
        ArrayItem.Assign(this._gltf.scenes);
        ArrayItem.Assign(this._gltf.skins);
        ArrayItem.Assign(this._gltf.textures);
        if (this._gltf.nodes) {
            var nodeParents = {};
            for (var _i = 0, _a = this._gltf.nodes; _i < _a.length; _i++) {
                var node = _a[_i];
                if (node.children) {
                    for (var _b = 0, _c = node.children; _b < _c.length; _b++) {
                        var index = _c[_b];
                        nodeParents[index] = node.index;
                    }
                }
            }
            var rootNode = this._createRootNode();
            for (var _d = 0, _e = this._gltf.nodes; _d < _e.length; _d++) {
                var node = _e[_d];
                var parentIndex = nodeParents[node.index];
                node.parent = parentIndex === undefined ? rootNode : this._gltf.nodes[parentIndex];
            }
        }
    };
    GLTFLoader.prototype._loadExtensions = function () {
        for (var name_2 in GLTFLoader._RegisteredExtensions) {
            var extension = GLTFLoader._RegisteredExtensions[name_2].factory(this);
            if (extension.name !== name_2) {
                babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn("The name of the glTF loader extension instance does not match the registered name: " + extension.name + " !== " + name_2);
            }
            this._extensions.push(extension);
            this._parent.onExtensionLoadedObservable.notifyObservers(extension);
        }
        this._extensions.sort(function (a, b) { return (a.order || Number.MAX_VALUE) - (b.order || Number.MAX_VALUE); });
        this._parent.onExtensionLoadedObservable.clear();
    };
    GLTFLoader.prototype._checkExtensions = function () {
        if (this._gltf.extensionsRequired) {
            var _loop_1 = function (name_3) {
                var available = this_1._extensions.some(function (extension) { return extension.name === name_3 && extension.enabled; });
                if (!available) {
                    throw new Error("Require extension " + name_3 + " is not available");
                }
            };
            var this_1 = this;
            for (var _i = 0, _a = this._gltf.extensionsRequired; _i < _a.length; _i++) {
                var name_3 = _a[_i];
                _loop_1(name_3);
            }
        }
    };
    GLTFLoader.prototype._setState = function (state) {
        this._state = state;
        this.log(_glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderState"][this._state]);
    };
    GLTFLoader.prototype._createRootNode = function () {
        this._babylonScene._blockEntityCollection = this._forAssetContainer;
        this._rootBabylonMesh = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Mesh"]("__root__", this._babylonScene);
        this._babylonScene._blockEntityCollection = false;
        this._rootBabylonMesh.setEnabled(false);
        var rootNode = {
            _babylonTransformNode: this._rootBabylonMesh,
            index: -1
        };
        switch (this._parent.coordinateSystemMode) {
            case _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderCoordinateSystemMode"].AUTO: {
                if (!this._babylonScene.useRightHandedSystem) {
                    rootNode.rotation = [0, 1, 0, 0];
                    rootNode.scale = [1, 1, -1];
                    GLTFLoader._LoadTransform(rootNode, this._rootBabylonMesh);
                }
                break;
            }
            case _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderCoordinateSystemMode"].FORCE_RIGHT_HANDED: {
                this._babylonScene.useRightHandedSystem = true;
                break;
            }
            default: {
                throw new Error("Invalid coordinate system mode (" + this._parent.coordinateSystemMode + ")");
            }
        }
        this._parent.onMeshLoadedObservable.notifyObservers(this._rootBabylonMesh);
        return rootNode;
    };
    /**
     * Loads a glTF scene.
     * @param context The context when loading the asset
     * @param scene The glTF scene property
     * @returns A promise that resolves when the load is complete
     */
    GLTFLoader.prototype.loadSceneAsync = function (context, scene) {
        var _this = this;
        var extensionPromise = this._extensionsLoadSceneAsync(context, scene);
        if (extensionPromise) {
            return extensionPromise;
        }
        var promises = new Array();
        this.logOpen(context + " " + (scene.name || ""));
        if (scene.nodes) {
            for (var _i = 0, _a = scene.nodes; _i < _a.length; _i++) {
                var index = _a[_i];
                var node = ArrayItem.Get(context + "/nodes/" + index, this._gltf.nodes, index);
                promises.push(this.loadNodeAsync("/nodes/" + node.index, node, function (babylonMesh) {
                    babylonMesh.parent = _this._rootBabylonMesh;
                }));
            }
        }
        // Link all Babylon bones for each glTF node with the corresponding Babylon transform node.
        // A glTF joint is a pointer to a glTF node in the glTF node hierarchy similar to Unity3D.
        if (this._gltf.nodes) {
            for (var _b = 0, _c = this._gltf.nodes; _b < _c.length; _b++) {
                var node = _c[_b];
                if (node._babylonTransformNode && node._babylonBones) {
                    for (var _d = 0, _e = node._babylonBones; _d < _e.length; _d++) {
                        var babylonBone = _e[_d];
                        babylonBone.linkTransformNode(node._babylonTransformNode);
                    }
                }
            }
        }
        promises.push(this._loadAnimationsAsync());
        this.logClose();
        return Promise.all(promises).then(function () { });
    };
    GLTFLoader.prototype._forEachPrimitive = function (node, callback) {
        if (node._primitiveBabylonMeshes) {
            for (var _i = 0, _a = node._primitiveBabylonMeshes; _i < _a.length; _i++) {
                var babylonMesh = _a[_i];
                callback(babylonMesh);
            }
        }
    };
    GLTFLoader.prototype._getGeometries = function () {
        var geometries = new Array();
        var nodes = this._gltf.nodes;
        if (nodes) {
            for (var _i = 0, nodes_1 = nodes; _i < nodes_1.length; _i++) {
                var node = nodes_1[_i];
                this._forEachPrimitive(node, function (babylonMesh) {
                    var geometry = babylonMesh.geometry;
                    if (geometry && geometries.indexOf(geometry) === -1) {
                        geometries.push(geometry);
                    }
                });
            }
        }
        return geometries;
    };
    GLTFLoader.prototype._getMeshes = function () {
        var meshes = new Array();
        // Root mesh is always first.
        meshes.push(this._rootBabylonMesh);
        var nodes = this._gltf.nodes;
        if (nodes) {
            for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
                var node = nodes_2[_i];
                this._forEachPrimitive(node, function (babylonMesh) {
                    meshes.push(babylonMesh);
                });
            }
        }
        return meshes;
    };
    GLTFLoader.prototype._getTransformNodes = function () {
        var transformNodes = new Array();
        var nodes = this._gltf.nodes;
        if (nodes) {
            for (var _i = 0, nodes_3 = nodes; _i < nodes_3.length; _i++) {
                var node = nodes_3[_i];
                if (node._babylonTransformNode && node._babylonTransformNode.getClassName() === "TransformNode") {
                    transformNodes.push(node._babylonTransformNode);
                }
            }
        }
        return transformNodes;
    };
    GLTFLoader.prototype._getSkeletons = function () {
        var skeletons = new Array();
        var skins = this._gltf.skins;
        if (skins) {
            for (var _i = 0, skins_1 = skins; _i < skins_1.length; _i++) {
                var skin = skins_1[_i];
                if (skin._data) {
                    skeletons.push(skin._data.babylonSkeleton);
                }
            }
        }
        return skeletons;
    };
    GLTFLoader.prototype._getAnimationGroups = function () {
        var animationGroups = new Array();
        var animations = this._gltf.animations;
        if (animations) {
            for (var _i = 0, animations_1 = animations; _i < animations_1.length; _i++) {
                var animation = animations_1[_i];
                if (animation._babylonAnimationGroup) {
                    animationGroups.push(animation._babylonAnimationGroup);
                }
            }
        }
        return animationGroups;
    };
    GLTFLoader.prototype._startAnimations = function () {
        switch (this._parent.animationStartMode) {
            case _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderAnimationStartMode"].NONE: {
                // do nothing
                break;
            }
            case _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderAnimationStartMode"].FIRST: {
                var babylonAnimationGroups = this._getAnimationGroups();
                if (babylonAnimationGroups.length !== 0) {
                    babylonAnimationGroups[0].start(true);
                }
                break;
            }
            case _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoaderAnimationStartMode"].ALL: {
                var babylonAnimationGroups = this._getAnimationGroups();
                for (var _i = 0, babylonAnimationGroups_1 = babylonAnimationGroups; _i < babylonAnimationGroups_1.length; _i++) {
                    var babylonAnimationGroup = babylonAnimationGroups_1[_i];
                    babylonAnimationGroup.start(true);
                }
                break;
            }
            default: {
                babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Error("Invalid animation start mode (" + this._parent.animationStartMode + ")");
                return;
            }
        }
    };
    /**
     * Loads a glTF node.
     * @param context The context when loading the asset
     * @param node The glTF node property
     * @param assign A function called synchronously after parsing the glTF properties
     * @returns A promise that resolves with the loaded Babylon mesh when the load is complete
     */
    GLTFLoader.prototype.loadNodeAsync = function (context, node, assign) {
        var _this = this;
        if (assign === void 0) { assign = function () { }; }
        var extensionPromise = this._extensionsLoadNodeAsync(context, node, assign);
        if (extensionPromise) {
            return extensionPromise;
        }
        if (node._babylonTransformNode) {
            throw new Error(context + ": Invalid recursive node hierarchy");
        }
        var promises = new Array();
        this.logOpen(context + " " + (node.name || ""));
        var loadNode = function (babylonTransformNode) {
            GLTFLoader.AddPointerMetadata(babylonTransformNode, context);
            GLTFLoader._LoadTransform(node, babylonTransformNode);
            if (node.camera != undefined) {
                var camera = ArrayItem.Get(context + "/camera", _this._gltf.cameras, node.camera);
                promises.push(_this.loadCameraAsync("/cameras/" + camera.index, camera, function (babylonCamera) {
                    babylonCamera.parent = babylonTransformNode;
                }));
            }
            if (node.children) {
                for (var _i = 0, _a = node.children; _i < _a.length; _i++) {
                    var index = _a[_i];
                    var childNode = ArrayItem.Get(context + "/children/" + index, _this._gltf.nodes, index);
                    promises.push(_this.loadNodeAsync("/nodes/" + childNode.index, childNode, function (childBabylonMesh) {
                        childBabylonMesh.parent = babylonTransformNode;
                    }));
                }
            }
            assign(babylonTransformNode);
        };
        if (node.mesh == undefined) {
            var nodeName = node.name || "node" + node.index;
            this._babylonScene._blockEntityCollection = this._forAssetContainer;
            node._babylonTransformNode = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["TransformNode"](nodeName, this._babylonScene);
            this._babylonScene._blockEntityCollection = false;
            loadNode(node._babylonTransformNode);
        }
        else {
            var mesh = ArrayItem.Get(context + "/mesh", this._gltf.meshes, node.mesh);
            promises.push(this._loadMeshAsync("/meshes/" + mesh.index, node, mesh, loadNode));
        }
        this.logClose();
        return Promise.all(promises).then(function () {
            _this._forEachPrimitive(node, function (babylonMesh) {
                if (babylonMesh.geometry && babylonMesh.geometry.useBoundingInfoFromGeometry) {
                    // simply apply the world matrices to the bounding info - the extends are already ok
                    babylonMesh._updateBoundingInfo();
                }
                else {
                    babylonMesh.refreshBoundingInfo(true);
                }
            });
            return node._babylonTransformNode;
        });
    };
    GLTFLoader.prototype._loadMeshAsync = function (context, node, mesh, assign) {
        var primitives = mesh.primitives;
        if (!primitives || !primitives.length) {
            throw new Error(context + ": Primitives are missing");
        }
        if (primitives[0].index == undefined) {
            ArrayItem.Assign(primitives);
        }
        var promises = new Array();
        this.logOpen(context + " " + (mesh.name || ""));
        var name = node.name || "node" + node.index;
        if (primitives.length === 1) {
            var primitive = mesh.primitives[0];
            promises.push(this._loadMeshPrimitiveAsync(context + "/primitives/" + primitive.index, name, node, mesh, primitive, function (babylonMesh) {
                node._babylonTransformNode = babylonMesh;
                node._primitiveBabylonMeshes = [babylonMesh];
            }));
        }
        else {
            this._babylonScene._blockEntityCollection = this._forAssetContainer;
            node._babylonTransformNode = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["TransformNode"](name, this._babylonScene);
            this._babylonScene._blockEntityCollection = false;
            node._primitiveBabylonMeshes = [];
            for (var _i = 0, primitives_1 = primitives; _i < primitives_1.length; _i++) {
                var primitive = primitives_1[_i];
                promises.push(this._loadMeshPrimitiveAsync(context + "/primitives/" + primitive.index, name + "_primitive" + primitive.index, node, mesh, primitive, function (babylonMesh) {
                    babylonMesh.parent = node._babylonTransformNode;
                    node._primitiveBabylonMeshes.push(babylonMesh);
                }));
            }
        }
        if (node.skin != undefined) {
            var skin = ArrayItem.Get(context + "/skin", this._gltf.skins, node.skin);
            promises.push(this._loadSkinAsync("/skins/" + skin.index, node, skin));
        }
        assign(node._babylonTransformNode);
        this.logClose();
        return Promise.all(promises).then(function () {
            return node._babylonTransformNode;
        });
    };
    /**
     * @hidden Define this method to modify the default behavior when loading data for mesh primitives.
     * @param context The context when loading the asset
     * @param name The mesh name when loading the asset
     * @param node The glTF node when loading the asset
     * @param mesh The glTF mesh when loading the asset
     * @param primitive The glTF mesh primitive property
     * @param assign A function called synchronously after parsing the glTF properties
     * @returns A promise that resolves with the loaded mesh when the load is complete or null if not handled
     */
    GLTFLoader.prototype._loadMeshPrimitiveAsync = function (context, name, node, mesh, primitive, assign) {
        var _this = this;
        var extensionPromise = this._extensionsLoadMeshPrimitiveAsync(context, name, node, mesh, primitive, assign);
        if (extensionPromise) {
            return extensionPromise;
        }
        this.logOpen("" + context);
        var shouldInstance = (this._disableInstancedMesh === 0) && this._parent.createInstances && (node.skin == undefined && !mesh.primitives[0].targets);
        var babylonAbstractMesh;
        var promise;
        if (shouldInstance && primitive._instanceData) {
            this._babylonScene._blockEntityCollection = this._forAssetContainer;
            babylonAbstractMesh = primitive._instanceData.babylonSourceMesh.createInstance(name);
            this._babylonScene._blockEntityCollection = false;
            promise = primitive._instanceData.promise;
        }
        else {
            var promises = new Array();
            this._babylonScene._blockEntityCollection = this._forAssetContainer;
            var babylonMesh_1 = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Mesh"](name, this._babylonScene);
            this._babylonScene._blockEntityCollection = false;
            babylonMesh_1.overrideMaterialSideOrientation = this._babylonScene.useRightHandedSystem ? babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].CounterClockWiseSideOrientation : babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].ClockWiseSideOrientation;
            this._createMorphTargets(context, node, mesh, primitive, babylonMesh_1);
            promises.push(this._loadVertexDataAsync(context, primitive, babylonMesh_1).then(function (babylonGeometry) {
                return _this._loadMorphTargetsAsync(context, primitive, babylonMesh_1, babylonGeometry).then(function () {
                    _this._babylonScene._blockEntityCollection = _this._forAssetContainer;
                    babylonGeometry.applyToMesh(babylonMesh_1);
                    _this._babylonScene._blockEntityCollection = false;
                });
            }));
            var babylonDrawMode = GLTFLoader._GetDrawMode(context, primitive.mode);
            if (primitive.material == undefined) {
                var babylonMaterial = this._defaultBabylonMaterialData[babylonDrawMode];
                if (!babylonMaterial) {
                    babylonMaterial = this._createDefaultMaterial("__GLTFLoader._default", babylonDrawMode);
                    this._parent.onMaterialLoadedObservable.notifyObservers(babylonMaterial);
                    this._defaultBabylonMaterialData[babylonDrawMode] = babylonMaterial;
                }
                babylonMesh_1.material = babylonMaterial;
            }
            else {
                var material = ArrayItem.Get(context + "/material", this._gltf.materials, primitive.material);
                promises.push(this._loadMaterialAsync("/materials/" + material.index, material, babylonMesh_1, babylonDrawMode, function (babylonMaterial) {
                    babylonMesh_1.material = babylonMaterial;
                }));
            }
            promise = Promise.all(promises);
            if (shouldInstance) {
                primitive._instanceData = {
                    babylonSourceMesh: babylonMesh_1,
                    promise: promise
                };
            }
            babylonAbstractMesh = babylonMesh_1;
        }
        GLTFLoader.AddPointerMetadata(babylonAbstractMesh, context);
        this._parent.onMeshLoadedObservable.notifyObservers(babylonAbstractMesh);
        assign(babylonAbstractMesh);
        this.logClose();
        return promise.then(function () {
            return babylonAbstractMesh;
        });
    };
    GLTFLoader.prototype._loadVertexDataAsync = function (context, primitive, babylonMesh) {
        var _this = this;
        var extensionPromise = this._extensionsLoadVertexDataAsync(context, primitive, babylonMesh);
        if (extensionPromise) {
            return extensionPromise;
        }
        var attributes = primitive.attributes;
        if (!attributes) {
            throw new Error(context + ": Attributes are missing");
        }
        var promises = new Array();
        var babylonGeometry = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Geometry"](babylonMesh.name, this._babylonScene);
        if (primitive.indices == undefined) {
            babylonMesh.isUnIndexed = true;
        }
        else {
            var accessor = ArrayItem.Get(context + "/indices", this._gltf.accessors, primitive.indices);
            promises.push(this._loadIndicesAccessorAsync("/accessors/" + accessor.index, accessor).then(function (data) {
                babylonGeometry.setIndices(data);
            }));
        }
        var loadAttribute = function (attribute, kind, callback) {
            if (attributes[attribute] == undefined) {
                return;
            }
            babylonMesh._delayInfo = babylonMesh._delayInfo || [];
            if (babylonMesh._delayInfo.indexOf(kind) === -1) {
                babylonMesh._delayInfo.push(kind);
            }
            var accessor = ArrayItem.Get(context + "/attributes/" + attribute, _this._gltf.accessors, attributes[attribute]);
            promises.push(_this._loadVertexAccessorAsync("/accessors/" + accessor.index, accessor, kind).then(function (babylonVertexBuffer) {
                if (babylonVertexBuffer.getKind() === babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].PositionKind && !_this.parent.alwaysComputeBoundingBox && !babylonMesh.skeleton) {
                    var mmin = accessor.min, mmax = accessor.max;
                    if (mmin !== undefined && mmax !== undefined) {
                        var min = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Vector3[0], max = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["TmpVectors"].Vector3[1];
                        min.copyFromFloats.apply(min, mmin);
                        max.copyFromFloats.apply(max, mmax);
                        babylonGeometry._boundingInfo = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["BoundingInfo"](min, max);
                        babylonGeometry.useBoundingInfoFromGeometry = true;
                    }
                }
                babylonGeometry.setVerticesBuffer(babylonVertexBuffer, accessor.count);
            }));
            if (kind == babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].MatricesIndicesExtraKind) {
                babylonMesh.numBoneInfluencers = 8;
            }
            if (callback) {
                callback(accessor);
            }
        };
        loadAttribute("POSITION", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].PositionKind);
        loadAttribute("NORMAL", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].NormalKind);
        loadAttribute("TANGENT", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].TangentKind);
        loadAttribute("TEXCOORD_0", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].UVKind);
        loadAttribute("TEXCOORD_1", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].UV2Kind);
        loadAttribute("JOINTS_0", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].MatricesIndicesKind);
        loadAttribute("WEIGHTS_0", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].MatricesWeightsKind);
        loadAttribute("JOINTS_1", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].MatricesIndicesExtraKind);
        loadAttribute("WEIGHTS_1", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].MatricesWeightsExtraKind);
        loadAttribute("COLOR_0", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].ColorKind, function (accessor) {
            if (accessor.type === "VEC4" /* VEC4 */) {
                babylonMesh.hasVertexAlpha = true;
            }
        });
        return Promise.all(promises).then(function () {
            return babylonGeometry;
        });
    };
    GLTFLoader.prototype._createMorphTargets = function (context, node, mesh, primitive, babylonMesh) {
        if (!primitive.targets) {
            return;
        }
        if (node._numMorphTargets == undefined) {
            node._numMorphTargets = primitive.targets.length;
        }
        else if (primitive.targets.length !== node._numMorphTargets) {
            throw new Error(context + ": Primitives do not have the same number of targets");
        }
        var targetNames = mesh.extras ? mesh.extras.targetNames : null;
        babylonMesh.morphTargetManager = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["MorphTargetManager"](babylonMesh.getScene());
        for (var index = 0; index < primitive.targets.length; index++) {
            var weight = node.weights ? node.weights[index] : mesh.weights ? mesh.weights[index] : 0;
            var name_4 = targetNames ? targetNames[index] : "morphTarget" + index;
            babylonMesh.morphTargetManager.addTarget(new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["MorphTarget"](name_4, weight, babylonMesh.getScene()));
            // TODO: tell the target whether it has positions, normals, tangents
        }
    };
    GLTFLoader.prototype._loadMorphTargetsAsync = function (context, primitive, babylonMesh, babylonGeometry) {
        if (!primitive.targets) {
            return Promise.resolve();
        }
        var promises = new Array();
        var morphTargetManager = babylonMesh.morphTargetManager;
        for (var index = 0; index < morphTargetManager.numTargets; index++) {
            var babylonMorphTarget = morphTargetManager.getTarget(index);
            promises.push(this._loadMorphTargetVertexDataAsync(context + "/targets/" + index, babylonGeometry, primitive.targets[index], babylonMorphTarget));
        }
        return Promise.all(promises).then(function () { });
    };
    GLTFLoader.prototype._loadMorphTargetVertexDataAsync = function (context, babylonGeometry, attributes, babylonMorphTarget) {
        var _this = this;
        var promises = new Array();
        var loadAttribute = function (attribute, kind, setData) {
            if (attributes[attribute] == undefined) {
                return;
            }
            var babylonVertexBuffer = babylonGeometry.getVertexBuffer(kind);
            if (!babylonVertexBuffer) {
                return;
            }
            var accessor = ArrayItem.Get(context + "/" + attribute, _this._gltf.accessors, attributes[attribute]);
            promises.push(_this._loadFloatAccessorAsync("/accessors/" + accessor.index, accessor).then(function (data) {
                setData(babylonVertexBuffer, data);
            }));
        };
        loadAttribute("POSITION", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].PositionKind, function (babylonVertexBuffer, data) {
            var positions = new Float32Array(data.length);
            babylonVertexBuffer.forEach(data.length, function (value, index) {
                positions[index] = data[index] + value;
            });
            babylonMorphTarget.setPositions(positions);
        });
        loadAttribute("NORMAL", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].NormalKind, function (babylonVertexBuffer, data) {
            var normals = new Float32Array(data.length);
            babylonVertexBuffer.forEach(normals.length, function (value, index) {
                normals[index] = data[index] + value;
            });
            babylonMorphTarget.setNormals(normals);
        });
        loadAttribute("TANGENT", babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].TangentKind, function (babylonVertexBuffer, data) {
            var tangents = new Float32Array(data.length / 3 * 4);
            var dataIndex = 0;
            babylonVertexBuffer.forEach(data.length / 3 * 4, function (value, index) {
                // Tangent data for morph targets is stored as xyz delta.
                // The vertexData.tangent is stored as xyzw.
                // So we need to skip every fourth vertexData.tangent.
                if (((index + 1) % 4) !== 0) {
                    tangents[dataIndex] = data[dataIndex] + value;
                    dataIndex++;
                }
            });
            babylonMorphTarget.setTangents(tangents);
        });
        return Promise.all(promises).then(function () { });
    };
    GLTFLoader._LoadTransform = function (node, babylonNode) {
        // Ignore the TRS of skinned nodes.
        // See https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins (second implementation note)
        if (node.skin != undefined) {
            return;
        }
        var position = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].Zero();
        var rotation = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].Identity();
        var scaling = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].One();
        if (node.matrix) {
            var matrix = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Matrix"].FromArray(node.matrix);
            matrix.decompose(scaling, rotation, position);
        }
        else {
            if (node.translation) {
                position = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArray(node.translation);
            }
            if (node.rotation) {
                rotation = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].FromArray(node.rotation);
            }
            if (node.scale) {
                scaling = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArray(node.scale);
            }
        }
        babylonNode.position = position;
        babylonNode.rotationQuaternion = rotation;
        babylonNode.scaling = scaling;
    };
    GLTFLoader.prototype._loadSkinAsync = function (context, node, skin) {
        var _this = this;
        var extensionPromise = this._extensionsLoadSkinAsync(context, node, skin);
        if (extensionPromise) {
            return extensionPromise;
        }
        var assignSkeleton = function (skeleton) {
            _this._forEachPrimitive(node, function (babylonMesh) {
                babylonMesh.skeleton = skeleton;
            });
        };
        if (skin._data) {
            assignSkeleton(skin._data.babylonSkeleton);
            return skin._data.promise;
        }
        var skeletonId = "skeleton" + skin.index;
        this._babylonScene._blockEntityCollection = this._forAssetContainer;
        var babylonSkeleton = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Skeleton"](skin.name || skeletonId, skeletonId, this._babylonScene);
        this._babylonScene._blockEntityCollection = false;
        // See https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins (second implementation note)
        babylonSkeleton.overrideMesh = this._rootBabylonMesh;
        this._loadBones(context, skin, babylonSkeleton);
        assignSkeleton(babylonSkeleton);
        var promise = this._loadSkinInverseBindMatricesDataAsync(context, skin).then(function (inverseBindMatricesData) {
            _this._updateBoneMatrices(babylonSkeleton, inverseBindMatricesData);
        });
        skin._data = {
            babylonSkeleton: babylonSkeleton,
            promise: promise
        };
        return promise;
    };
    GLTFLoader.prototype._loadBones = function (context, skin, babylonSkeleton) {
        var babylonBones = {};
        for (var _i = 0, _a = skin.joints; _i < _a.length; _i++) {
            var index = _a[_i];
            var node = ArrayItem.Get(context + "/joints/" + index, this._gltf.nodes, index);
            this._loadBone(node, skin, babylonSkeleton, babylonBones);
        }
    };
    GLTFLoader.prototype._loadBone = function (node, skin, babylonSkeleton, babylonBones) {
        var babylonBone = babylonBones[node.index];
        if (babylonBone) {
            return babylonBone;
        }
        var babylonParentBone = null;
        if (node.parent && node.parent._babylonTransformNode !== this._rootBabylonMesh) {
            babylonParentBone = this._loadBone(node.parent, skin, babylonSkeleton, babylonBones);
        }
        var boneIndex = skin.joints.indexOf(node.index);
        babylonBone = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Bone"](node.name || "joint" + node.index, babylonSkeleton, babylonParentBone, this._getNodeMatrix(node), null, null, boneIndex);
        babylonBones[node.index] = babylonBone;
        node._babylonBones = node._babylonBones || [];
        node._babylonBones.push(babylonBone);
        return babylonBone;
    };
    GLTFLoader.prototype._loadSkinInverseBindMatricesDataAsync = function (context, skin) {
        if (skin.inverseBindMatrices == undefined) {
            return Promise.resolve(null);
        }
        var accessor = ArrayItem.Get(context + "/inverseBindMatrices", this._gltf.accessors, skin.inverseBindMatrices);
        return this._loadFloatAccessorAsync("/accessors/" + accessor.index, accessor);
    };
    GLTFLoader.prototype._updateBoneMatrices = function (babylonSkeleton, inverseBindMatricesData) {
        for (var _i = 0, _a = babylonSkeleton.bones; _i < _a.length; _i++) {
            var babylonBone = _a[_i];
            var baseMatrix = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Matrix"].Identity();
            var boneIndex = babylonBone._index;
            if (inverseBindMatricesData && boneIndex !== -1) {
                babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Matrix"].FromArrayToRef(inverseBindMatricesData, boneIndex * 16, baseMatrix);
                baseMatrix.invertToRef(baseMatrix);
            }
            var babylonParentBone = babylonBone.getParent();
            if (babylonParentBone) {
                baseMatrix.multiplyToRef(babylonParentBone.getInvertedAbsoluteTransform(), baseMatrix);
            }
            babylonBone.setBindPose(baseMatrix);
            babylonBone.updateMatrix(baseMatrix, false, false);
            babylonBone._updateDifferenceMatrix(undefined, false);
        }
    };
    GLTFLoader.prototype._getNodeMatrix = function (node) {
        return node.matrix ?
            babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Matrix"].FromArray(node.matrix) :
            babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Matrix"].Compose(node.scale ? babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArray(node.scale) : babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].One(), node.rotation ? babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].FromArray(node.rotation) : babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].Identity(), node.translation ? babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArray(node.translation) : babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].Zero());
    };
    /**
     * Loads a glTF camera.
     * @param context The context when loading the asset
     * @param camera The glTF camera property
     * @param assign A function called synchronously after parsing the glTF properties
     * @returns A promise that resolves with the loaded Babylon camera when the load is complete
     */
    GLTFLoader.prototype.loadCameraAsync = function (context, camera, assign) {
        if (assign === void 0) { assign = function () { }; }
        var extensionPromise = this._extensionsLoadCameraAsync(context, camera, assign);
        if (extensionPromise) {
            return extensionPromise;
        }
        var promises = new Array();
        this.logOpen(context + " " + (camera.name || ""));
        this._babylonScene._blockEntityCollection = this._forAssetContainer;
        var babylonCamera = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["FreeCamera"](camera.name || "camera" + camera.index, babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].Zero(), this._babylonScene, false);
        this._babylonScene._blockEntityCollection = false;
        babylonCamera.ignoreParentScaling = true;
        babylonCamera.rotation = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"](0, Math.PI, 0);
        switch (camera.type) {
            case "perspective" /* PERSPECTIVE */: {
                var perspective = camera.perspective;
                if (!perspective) {
                    throw new Error(context + ": Camera perspective properties are missing");
                }
                babylonCamera.fov = perspective.yfov;
                babylonCamera.minZ = perspective.znear;
                babylonCamera.maxZ = perspective.zfar || 0;
                break;
            }
            case "orthographic" /* ORTHOGRAPHIC */: {
                if (!camera.orthographic) {
                    throw new Error(context + ": Camera orthographic properties are missing");
                }
                babylonCamera.mode = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Camera"].ORTHOGRAPHIC_CAMERA;
                babylonCamera.orthoLeft = -camera.orthographic.xmag;
                babylonCamera.orthoRight = camera.orthographic.xmag;
                babylonCamera.orthoBottom = -camera.orthographic.ymag;
                babylonCamera.orthoTop = camera.orthographic.ymag;
                babylonCamera.minZ = camera.orthographic.znear;
                babylonCamera.maxZ = camera.orthographic.zfar;
                break;
            }
            default: {
                throw new Error(context + ": Invalid camera type (" + camera.type + ")");
            }
        }
        GLTFLoader.AddPointerMetadata(babylonCamera, context);
        this._parent.onCameraLoadedObservable.notifyObservers(babylonCamera);
        assign(babylonCamera);
        this.logClose();
        return Promise.all(promises).then(function () {
            return babylonCamera;
        });
    };
    GLTFLoader.prototype._loadAnimationsAsync = function () {
        var animations = this._gltf.animations;
        if (!animations) {
            return Promise.resolve();
        }
        var promises = new Array();
        for (var index = 0; index < animations.length; index++) {
            var animation = animations[index];
            promises.push(this.loadAnimationAsync("/animations/" + animation.index, animation).then(function (animationGroup) {
                // Delete the animation group if it ended up not having any animations in it.
                if (animationGroup.targetedAnimations.length === 0) {
                    animationGroup.dispose();
                }
            }));
        }
        return Promise.all(promises).then(function () { });
    };
    /**
     * Loads a glTF animation.
     * @param context The context when loading the asset
     * @param animation The glTF animation property
     * @returns A promise that resolves with the loaded Babylon animation group when the load is complete
     */
    GLTFLoader.prototype.loadAnimationAsync = function (context, animation) {
        var promise = this._extensionsLoadAnimationAsync(context, animation);
        if (promise) {
            return promise;
        }
        this._babylonScene._blockEntityCollection = this._forAssetContainer;
        var babylonAnimationGroup = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["AnimationGroup"](animation.name || "animation" + animation.index, this._babylonScene);
        this._babylonScene._blockEntityCollection = false;
        animation._babylonAnimationGroup = babylonAnimationGroup;
        var promises = new Array();
        ArrayItem.Assign(animation.channels);
        ArrayItem.Assign(animation.samplers);
        for (var _i = 0, _a = animation.channels; _i < _a.length; _i++) {
            var channel = _a[_i];
            promises.push(this._loadAnimationChannelAsync(context + "/channels/" + channel.index, context, animation, channel, babylonAnimationGroup));
        }
        return Promise.all(promises).then(function () {
            babylonAnimationGroup.normalize(0);
            return babylonAnimationGroup;
        });
    };
    /**
     * @hidden Loads a glTF animation channel.
     * @param context The context when loading the asset
     * @param animationContext The context of the animation when loading the asset
     * @param animation The glTF animation property
     * @param channel The glTF animation channel property
     * @param babylonAnimationGroup The babylon animation group property
     * @param animationTargetOverride The babylon animation channel target override property. My be null.
     * @returns A void promise when the channel load is complete
     */
    GLTFLoader.prototype._loadAnimationChannelAsync = function (context, animationContext, animation, channel, babylonAnimationGroup, animationTargetOverride) {
        var _this = this;
        if (animationTargetOverride === void 0) { animationTargetOverride = null; }
        if (channel.target.node == undefined) {
            return Promise.resolve();
        }
        var targetNode = ArrayItem.Get(context + "/target/node", this._gltf.nodes, channel.target.node);
        // Ignore animations that have no animation targets.
        if ((channel.target.path === "weights" /* WEIGHTS */ && !targetNode._numMorphTargets) ||
            (channel.target.path !== "weights" /* WEIGHTS */ && !targetNode._babylonTransformNode)) {
            return Promise.resolve();
        }
        var sampler = ArrayItem.Get(context + "/sampler", animation.samplers, channel.sampler);
        return this._loadAnimationSamplerAsync(animationContext + "/samplers/" + channel.sampler, sampler).then(function (data) {
            var targetPath;
            var animationType;
            switch (channel.target.path) {
                case "translation" /* TRANSLATION */: {
                    targetPath = "position";
                    animationType = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Animation"].ANIMATIONTYPE_VECTOR3;
                    break;
                }
                case "rotation" /* ROTATION */: {
                    targetPath = "rotationQuaternion";
                    animationType = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Animation"].ANIMATIONTYPE_QUATERNION;
                    break;
                }
                case "scale" /* SCALE */: {
                    targetPath = "scaling";
                    animationType = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Animation"].ANIMATIONTYPE_VECTOR3;
                    break;
                }
                case "weights" /* WEIGHTS */: {
                    targetPath = "influence";
                    animationType = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Animation"].ANIMATIONTYPE_FLOAT;
                    break;
                }
                default: {
                    throw new Error(context + "/target/path: Invalid value (" + channel.target.path + ")");
                }
            }
            var outputBufferOffset = 0;
            var getNextOutputValue;
            switch (targetPath) {
                case "position": {
                    getNextOutputValue = function () {
                        var value = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArray(data.output, outputBufferOffset);
                        outputBufferOffset += 3;
                        return value;
                    };
                    break;
                }
                case "rotationQuaternion": {
                    getNextOutputValue = function () {
                        var value = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].FromArray(data.output, outputBufferOffset);
                        outputBufferOffset += 4;
                        return value;
                    };
                    break;
                }
                case "scaling": {
                    getNextOutputValue = function () {
                        var value = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArray(data.output, outputBufferOffset);
                        outputBufferOffset += 3;
                        return value;
                    };
                    break;
                }
                case "influence": {
                    getNextOutputValue = function () {
                        var value = new Array(targetNode._numMorphTargets);
                        for (var i = 0; i < targetNode._numMorphTargets; i++) {
                            value[i] = data.output[outputBufferOffset++];
                        }
                        return value;
                    };
                    break;
                }
            }
            var getNextKey;
            switch (data.interpolation) {
                case "STEP" /* STEP */: {
                    getNextKey = function (frameIndex) { return ({
                        frame: data.input[frameIndex],
                        value: getNextOutputValue(),
                        interpolation: babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["AnimationKeyInterpolation"].STEP
                    }); };
                    break;
                }
                case "LINEAR" /* LINEAR */: {
                    getNextKey = function (frameIndex) { return ({
                        frame: data.input[frameIndex],
                        value: getNextOutputValue()
                    }); };
                    break;
                }
                case "CUBICSPLINE" /* CUBICSPLINE */: {
                    getNextKey = function (frameIndex) { return ({
                        frame: data.input[frameIndex],
                        inTangent: getNextOutputValue(),
                        value: getNextOutputValue(),
                        outTangent: getNextOutputValue()
                    }); };
                    break;
                }
            }
            var keys = new Array(data.input.length);
            for (var frameIndex = 0; frameIndex < data.input.length; frameIndex++) {
                keys[frameIndex] = getNextKey(frameIndex);
            }
            if (targetPath === "influence") {
                var _loop_2 = function (targetIndex) {
                    var animationName = babylonAnimationGroup.name + "_channel" + babylonAnimationGroup.targetedAnimations.length;
                    var babylonAnimation = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Animation"](animationName, targetPath, 1, animationType);
                    babylonAnimation.setKeys(keys.map(function (key) { return ({
                        frame: key.frame,
                        inTangent: key.inTangent ? key.inTangent[targetIndex] : undefined,
                        value: key.value[targetIndex],
                        outTangent: key.outTangent ? key.outTangent[targetIndex] : undefined
                    }); }));
                    _this._forEachPrimitive(targetNode, function (babylonAbstractMesh) {
                        var babylonMesh = babylonAbstractMesh;
                        var morphTarget = babylonMesh.morphTargetManager.getTarget(targetIndex);
                        var babylonAnimationClone = babylonAnimation.clone();
                        morphTarget.animations.push(babylonAnimationClone);
                        babylonAnimationGroup.addTargetedAnimation(babylonAnimationClone, morphTarget);
                    });
                };
                for (var targetIndex = 0; targetIndex < targetNode._numMorphTargets; targetIndex++) {
                    _loop_2(targetIndex);
                }
            }
            else {
                var animationName = babylonAnimationGroup.name + "_channel" + babylonAnimationGroup.targetedAnimations.length;
                var babylonAnimation = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Animation"](animationName, targetPath, 1, animationType);
                babylonAnimation.setKeys(keys);
                if (animationTargetOverride != null && animationTargetOverride.animations != null) {
                    animationTargetOverride.animations.push(babylonAnimation);
                    babylonAnimationGroup.addTargetedAnimation(babylonAnimation, animationTargetOverride);
                }
                else {
                    targetNode._babylonTransformNode.animations.push(babylonAnimation);
                    babylonAnimationGroup.addTargetedAnimation(babylonAnimation, targetNode._babylonTransformNode);
                }
            }
        });
    };
    GLTFLoader.prototype._loadAnimationSamplerAsync = function (context, sampler) {
        if (sampler._data) {
            return sampler._data;
        }
        var interpolation = sampler.interpolation || "LINEAR" /* LINEAR */;
        switch (interpolation) {
            case "STEP" /* STEP */:
            case "LINEAR" /* LINEAR */:
            case "CUBICSPLINE" /* CUBICSPLINE */: {
                break;
            }
            default: {
                throw new Error(context + "/interpolation: Invalid value (" + sampler.interpolation + ")");
            }
        }
        var inputAccessor = ArrayItem.Get(context + "/input", this._gltf.accessors, sampler.input);
        var outputAccessor = ArrayItem.Get(context + "/output", this._gltf.accessors, sampler.output);
        sampler._data = Promise.all([
            this._loadFloatAccessorAsync("/accessors/" + inputAccessor.index, inputAccessor),
            this._loadFloatAccessorAsync("/accessors/" + outputAccessor.index, outputAccessor)
        ]).then(function (_a) {
            var inputData = _a[0], outputData = _a[1];
            return {
                input: inputData,
                interpolation: interpolation,
                output: outputData,
            };
        });
        return sampler._data;
    };
    /**
     * Loads a glTF buffer.
     * @param context The context when loading the asset
     * @param buffer The glTF buffer property
     * @param byteOffset The byte offset to use
     * @param byteLength The byte length to use
     * @returns A promise that resolves with the loaded data when the load is complete
     */
    GLTFLoader.prototype.loadBufferAsync = function (context, buffer, byteOffset, byteLength) {
        var extensionPromise = this._extensionsLoadBufferAsync(context, buffer, byteOffset, byteLength);
        if (extensionPromise) {
            return extensionPromise;
        }
        if (!buffer._data) {
            if (buffer.uri) {
                buffer._data = this.loadUriAsync(context + "/uri", buffer, buffer.uri);
            }
            else {
                if (!this._bin) {
                    throw new Error(context + ": Uri is missing or the binary glTF is missing its binary chunk");
                }
                buffer._data = this._bin.readAsync(0, buffer.byteLength);
            }
        }
        return buffer._data.then(function (data) {
            try {
                return new Uint8Array(data.buffer, data.byteOffset + byteOffset, byteLength);
            }
            catch (e) {
                throw new Error(context + ": " + e.message);
            }
        });
    };
    /**
     * Loads a glTF buffer view.
     * @param context The context when loading the asset
     * @param bufferView The glTF buffer view property
     * @returns A promise that resolves with the loaded data when the load is complete
     */
    GLTFLoader.prototype.loadBufferViewAsync = function (context, bufferView) {
        var extensionPromise = this._extensionsLoadBufferViewAsync(context, bufferView);
        if (extensionPromise) {
            return extensionPromise;
        }
        if (bufferView._data) {
            return bufferView._data;
        }
        var buffer = ArrayItem.Get(context + "/buffer", this._gltf.buffers, bufferView.buffer);
        bufferView._data = this.loadBufferAsync("/buffers/" + buffer.index, buffer, (bufferView.byteOffset || 0), bufferView.byteLength);
        return bufferView._data;
    };
    GLTFLoader.prototype._loadAccessorAsync = function (context, accessor, constructor) {
        var _this = this;
        if (accessor._data) {
            return accessor._data;
        }
        var numComponents = GLTFLoader._GetNumComponents(context, accessor.type);
        var byteStride = numComponents * babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].GetTypeByteLength(accessor.componentType);
        var length = numComponents * accessor.count;
        if (accessor.bufferView == undefined) {
            accessor._data = Promise.resolve(new constructor(length));
        }
        else {
            var bufferView_1 = ArrayItem.Get(context + "/bufferView", this._gltf.bufferViews, accessor.bufferView);
            accessor._data = this.loadBufferViewAsync("/bufferViews/" + bufferView_1.index, bufferView_1).then(function (data) {
                if (accessor.componentType === 5126 /* FLOAT */ && !accessor.normalized && (!bufferView_1.byteStride || bufferView_1.byteStride === byteStride)) {
                    return GLTFLoader._GetTypedArray(context, accessor.componentType, data, accessor.byteOffset, length);
                }
                else {
                    var typedArray_1 = new constructor(length);
                    babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].ForEach(data, accessor.byteOffset || 0, bufferView_1.byteStride || byteStride, numComponents, accessor.componentType, typedArray_1.length, accessor.normalized || false, function (value, index) {
                        typedArray_1[index] = value;
                    });
                    return typedArray_1;
                }
            });
        }
        if (accessor.sparse) {
            var sparse_1 = accessor.sparse;
            accessor._data = accessor._data.then(function (data) {
                var typedArray = data;
                var indicesBufferView = ArrayItem.Get(context + "/sparse/indices/bufferView", _this._gltf.bufferViews, sparse_1.indices.bufferView);
                var valuesBufferView = ArrayItem.Get(context + "/sparse/values/bufferView", _this._gltf.bufferViews, sparse_1.values.bufferView);
                return Promise.all([
                    _this.loadBufferViewAsync("/bufferViews/" + indicesBufferView.index, indicesBufferView),
                    _this.loadBufferViewAsync("/bufferViews/" + valuesBufferView.index, valuesBufferView)
                ]).then(function (_a) {
                    var indicesData = _a[0], valuesData = _a[1];
                    var indices = GLTFLoader._GetTypedArray(context + "/sparse/indices", sparse_1.indices.componentType, indicesData, sparse_1.indices.byteOffset, sparse_1.count);
                    var sparseLength = numComponents * sparse_1.count;
                    var values;
                    if (accessor.componentType === 5126 /* FLOAT */ && !accessor.normalized) {
                        values = GLTFLoader._GetTypedArray(context + "/sparse/values", accessor.componentType, valuesData, sparse_1.values.byteOffset, sparseLength);
                    }
                    else {
                        var sparseData = GLTFLoader._GetTypedArray(context + "/sparse/values", accessor.componentType, valuesData, sparse_1.values.byteOffset, sparseLength);
                        values = new constructor(sparseLength);
                        babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].ForEach(sparseData, 0, byteStride, numComponents, accessor.componentType, values.length, accessor.normalized || false, function (value, index) {
                            values[index] = value;
                        });
                    }
                    var valuesIndex = 0;
                    for (var indicesIndex = 0; indicesIndex < indices.length; indicesIndex++) {
                        var dataIndex = indices[indicesIndex] * numComponents;
                        for (var componentIndex = 0; componentIndex < numComponents; componentIndex++) {
                            typedArray[dataIndex++] = values[valuesIndex++];
                        }
                    }
                    return typedArray;
                });
            });
        }
        return accessor._data;
    };
    /** @hidden */
    GLTFLoader.prototype._loadFloatAccessorAsync = function (context, accessor) {
        return this._loadAccessorAsync(context, accessor, Float32Array);
    };
    GLTFLoader.prototype._loadIndicesAccessorAsync = function (context, accessor) {
        if (accessor.type !== "SCALAR" /* SCALAR */) {
            throw new Error(context + "/type: Invalid value " + accessor.type);
        }
        if (accessor.componentType !== 5121 /* UNSIGNED_BYTE */ &&
            accessor.componentType !== 5123 /* UNSIGNED_SHORT */ &&
            accessor.componentType !== 5125 /* UNSIGNED_INT */) {
            throw new Error(context + "/componentType: Invalid value " + accessor.componentType);
        }
        if (accessor._data) {
            return accessor._data;
        }
        if (accessor.sparse) {
            var constructor = GLTFLoader._GetTypedArrayConstructor(context + "/componentType", accessor.componentType);
            accessor._data = this._loadAccessorAsync(context, accessor, constructor);
        }
        else {
            var bufferView = ArrayItem.Get(context + "/bufferView", this._gltf.bufferViews, accessor.bufferView);
            accessor._data = this.loadBufferViewAsync("/bufferViews/" + bufferView.index, bufferView).then(function (data) {
                return GLTFLoader._GetTypedArray(context, accessor.componentType, data, accessor.byteOffset, accessor.count);
            });
        }
        return accessor._data;
    };
    GLTFLoader.prototype._loadVertexBufferViewAsync = function (bufferView, kind) {
        var _this = this;
        if (bufferView._babylonBuffer) {
            return bufferView._babylonBuffer;
        }
        bufferView._babylonBuffer = this.loadBufferViewAsync("/bufferViews/" + bufferView.index, bufferView).then(function (data) {
            return new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Buffer"](_this._babylonScene.getEngine(), data, false);
        });
        return bufferView._babylonBuffer;
    };
    GLTFLoader.prototype._loadVertexAccessorAsync = function (context, accessor, kind) {
        var _this = this;
        if (accessor._babylonVertexBuffer) {
            return accessor._babylonVertexBuffer;
        }
        if (accessor.sparse) {
            accessor._babylonVertexBuffer = this._loadFloatAccessorAsync("/accessors/" + accessor.index, accessor).then(function (data) {
                return new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"](_this._babylonScene.getEngine(), data, kind, false);
            });
        }
        // HACK: If byte offset is not a multiple of component type byte length then load as a float array instead of using Babylon buffers.
        else if (accessor.byteOffset && accessor.byteOffset % babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].GetTypeByteLength(accessor.componentType) !== 0) {
            babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn("Accessor byte offset is not a multiple of component type byte length");
            accessor._babylonVertexBuffer = this._loadFloatAccessorAsync("/accessors/" + accessor.index, accessor).then(function (data) {
                return new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"](_this._babylonScene.getEngine(), data, kind, false);
            });
        }
        // Load joint indices as a float array since the shaders expect float data but glTF uses unsigned byte/short.
        // This prevents certain platforms (e.g. D3D) from having to convert the data to float on the fly.
        else if (kind === babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].MatricesIndicesKind || kind === babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"].MatricesIndicesExtraKind) {
            accessor._babylonVertexBuffer = this._loadFloatAccessorAsync("/accessors/" + accessor.index, accessor).then(function (data) {
                return new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"](_this._babylonScene.getEngine(), data, kind, false);
            });
        }
        else {
            var bufferView_2 = ArrayItem.Get(context + "/bufferView", this._gltf.bufferViews, accessor.bufferView);
            accessor._babylonVertexBuffer = this._loadVertexBufferViewAsync(bufferView_2, kind).then(function (babylonBuffer) {
                var size = GLTFLoader._GetNumComponents(context, accessor.type);
                return new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["VertexBuffer"](_this._babylonScene.getEngine(), babylonBuffer, kind, false, false, bufferView_2.byteStride, false, accessor.byteOffset, size, accessor.componentType, accessor.normalized, true, 1, true);
            });
        }
        return accessor._babylonVertexBuffer;
    };
    GLTFLoader.prototype._loadMaterialMetallicRoughnessPropertiesAsync = function (context, properties, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var promises = new Array();
        if (properties) {
            if (properties.baseColorFactor) {
                babylonMaterial.albedoColor = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Color3"].FromArray(properties.baseColorFactor);
                babylonMaterial.alpha = properties.baseColorFactor[3];
            }
            else {
                babylonMaterial.albedoColor = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Color3"].White();
            }
            babylonMaterial.metallic = properties.metallicFactor == undefined ? 1 : properties.metallicFactor;
            babylonMaterial.roughness = properties.roughnessFactor == undefined ? 1 : properties.roughnessFactor;
            if (properties.baseColorTexture) {
                promises.push(this.loadTextureInfoAsync(context + "/baseColorTexture", properties.baseColorTexture, function (texture) {
                    texture.name = babylonMaterial.name + " (Base Color)";
                    babylonMaterial.albedoTexture = texture;
                }));
            }
            if (properties.metallicRoughnessTexture) {
                properties.metallicRoughnessTexture.nonColorData = true;
                promises.push(this.loadTextureInfoAsync(context + "/metallicRoughnessTexture", properties.metallicRoughnessTexture, function (texture) {
                    texture.name = babylonMaterial.name + " (Metallic Roughness)";
                    babylonMaterial.metallicTexture = texture;
                }));
                babylonMaterial.useMetallnessFromMetallicTextureBlue = true;
                babylonMaterial.useRoughnessFromMetallicTextureGreen = true;
                babylonMaterial.useRoughnessFromMetallicTextureAlpha = false;
            }
        }
        return Promise.all(promises).then(function () { });
    };
    /** @hidden */
    GLTFLoader.prototype._loadMaterialAsync = function (context, material, babylonMesh, babylonDrawMode, assign) {
        if (assign === void 0) { assign = function () { }; }
        var extensionPromise = this._extensionsLoadMaterialAsync(context, material, babylonMesh, babylonDrawMode, assign);
        if (extensionPromise) {
            return extensionPromise;
        }
        material._data = material._data || {};
        var babylonData = material._data[babylonDrawMode];
        if (!babylonData) {
            this.logOpen(context + " " + (material.name || ""));
            var babylonMaterial = this.createMaterial(context, material, babylonDrawMode);
            babylonData = {
                babylonMaterial: babylonMaterial,
                babylonMeshes: [],
                promise: this.loadMaterialPropertiesAsync(context, material, babylonMaterial)
            };
            material._data[babylonDrawMode] = babylonData;
            GLTFLoader.AddPointerMetadata(babylonMaterial, context);
            this._parent.onMaterialLoadedObservable.notifyObservers(babylonMaterial);
            this.logClose();
        }
        if (babylonMesh) {
            babylonData.babylonMeshes.push(babylonMesh);
            babylonMesh.onDisposeObservable.addOnce(function () {
                var index = babylonData.babylonMeshes.indexOf(babylonMesh);
                if (index !== -1) {
                    babylonData.babylonMeshes.splice(index, 1);
                }
            });
        }
        assign(babylonData.babylonMaterial);
        return babylonData.promise.then(function () {
            return babylonData.babylonMaterial;
        });
    };
    GLTFLoader.prototype._createDefaultMaterial = function (name, babylonDrawMode) {
        this._babylonScene._blockEntityCollection = this._forAssetContainer;
        var babylonMaterial = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"](name, this._babylonScene);
        this._babylonScene._blockEntityCollection = false;
        // Moved to mesh so user can change materials on gltf meshes: babylonMaterial.sideOrientation = this._babylonScene.useRightHandedSystem ? Material.CounterClockWiseSideOrientation : Material.ClockWiseSideOrientation;
        babylonMaterial.fillMode = babylonDrawMode;
        babylonMaterial.enableSpecularAntiAliasing = true;
        babylonMaterial.useRadianceOverAlpha = !this._parent.transparencyAsCoverage;
        babylonMaterial.useSpecularOverAlpha = !this._parent.transparencyAsCoverage;
        babylonMaterial.transparencyMode = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"].PBRMATERIAL_OPAQUE;
        babylonMaterial.metallic = 1;
        babylonMaterial.roughness = 1;
        return babylonMaterial;
    };
    /**
     * Creates a Babylon material from a glTF material.
     * @param context The context when loading the asset
     * @param material The glTF material property
     * @param babylonDrawMode The draw mode for the Babylon material
     * @returns The Babylon material
     */
    GLTFLoader.prototype.createMaterial = function (context, material, babylonDrawMode) {
        var extensionPromise = this._extensionsCreateMaterial(context, material, babylonDrawMode);
        if (extensionPromise) {
            return extensionPromise;
        }
        var name = material.name || "material" + material.index;
        var babylonMaterial = this._createDefaultMaterial(name, babylonDrawMode);
        return babylonMaterial;
    };
    /**
     * Loads properties from a glTF material into a Babylon material.
     * @param context The context when loading the asset
     * @param material The glTF material property
     * @param babylonMaterial The Babylon material
     * @returns A promise that resolves when the load is complete
     */
    GLTFLoader.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var extensionPromise = this._extensionsLoadMaterialPropertiesAsync(context, material, babylonMaterial);
        if (extensionPromise) {
            return extensionPromise;
        }
        var promises = new Array();
        promises.push(this.loadMaterialBasePropertiesAsync(context, material, babylonMaterial));
        if (material.pbrMetallicRoughness) {
            promises.push(this._loadMaterialMetallicRoughnessPropertiesAsync(context + "/pbrMetallicRoughness", material.pbrMetallicRoughness, babylonMaterial));
        }
        this.loadMaterialAlphaProperties(context, material, babylonMaterial);
        return Promise.all(promises).then(function () { });
    };
    /**
     * Loads the normal, occlusion, and emissive properties from a glTF material into a Babylon material.
     * @param context The context when loading the asset
     * @param material The glTF material property
     * @param babylonMaterial The Babylon material
     * @returns A promise that resolves when the load is complete
     */
    GLTFLoader.prototype.loadMaterialBasePropertiesAsync = function (context, material, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var promises = new Array();
        babylonMaterial.emissiveColor = material.emissiveFactor ? babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Color3"].FromArray(material.emissiveFactor) : new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Color3"](0, 0, 0);
        if (material.doubleSided) {
            babylonMaterial.backFaceCulling = false;
            babylonMaterial.twoSidedLighting = true;
        }
        if (material.normalTexture) {
            material.normalTexture.nonColorData = true;
            promises.push(this.loadTextureInfoAsync(context + "/normalTexture", material.normalTexture, function (texture) {
                texture.name = babylonMaterial.name + " (Normal)";
                babylonMaterial.bumpTexture = texture;
            }));
            babylonMaterial.invertNormalMapX = !this._babylonScene.useRightHandedSystem;
            babylonMaterial.invertNormalMapY = this._babylonScene.useRightHandedSystem;
            if (material.normalTexture.scale != undefined) {
                babylonMaterial.bumpTexture.level = material.normalTexture.scale;
            }
            babylonMaterial.forceIrradianceInFragment = true;
        }
        if (material.occlusionTexture) {
            material.occlusionTexture.nonColorData = true;
            promises.push(this.loadTextureInfoAsync(context + "/occlusionTexture", material.occlusionTexture, function (texture) {
                texture.name = babylonMaterial.name + " (Occlusion)";
                babylonMaterial.ambientTexture = texture;
            }));
            babylonMaterial.useAmbientInGrayScale = true;
            if (material.occlusionTexture.strength != undefined) {
                babylonMaterial.ambientTextureStrength = material.occlusionTexture.strength;
            }
        }
        if (material.emissiveTexture) {
            promises.push(this.loadTextureInfoAsync(context + "/emissiveTexture", material.emissiveTexture, function (texture) {
                texture.name = babylonMaterial.name + " (Emissive)";
                babylonMaterial.emissiveTexture = texture;
            }));
        }
        return Promise.all(promises).then(function () { });
    };
    /**
     * Loads the alpha properties from a glTF material into a Babylon material.
     * Must be called after the setting the albedo texture of the Babylon material when the material has an albedo texture.
     * @param context The context when loading the asset
     * @param material The glTF material property
     * @param babylonMaterial The Babylon material
     */
    GLTFLoader.prototype.loadMaterialAlphaProperties = function (context, material, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"])) {
            throw new Error(context + ": Material type not supported");
        }
        var alphaMode = material.alphaMode || "OPAQUE" /* OPAQUE */;
        switch (alphaMode) {
            case "OPAQUE" /* OPAQUE */: {
                babylonMaterial.transparencyMode = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"].PBRMATERIAL_OPAQUE;
                break;
            }
            case "MASK" /* MASK */: {
                babylonMaterial.transparencyMode = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"].PBRMATERIAL_ALPHATEST;
                babylonMaterial.alphaCutOff = (material.alphaCutoff == undefined ? 0.5 : material.alphaCutoff);
                if (babylonMaterial.albedoTexture) {
                    babylonMaterial.albedoTexture.hasAlpha = true;
                }
                break;
            }
            case "BLEND" /* BLEND */: {
                babylonMaterial.transparencyMode = babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["PBRMaterial"].PBRMATERIAL_ALPHABLEND;
                if (babylonMaterial.albedoTexture) {
                    babylonMaterial.albedoTexture.hasAlpha = true;
                    babylonMaterial.useAlphaFromAlbedoTexture = true;
                }
                break;
            }
            default: {
                throw new Error(context + "/alphaMode: Invalid value (" + material.alphaMode + ")");
            }
        }
    };
    /**
     * Loads a glTF texture info.
     * @param context The context when loading the asset
     * @param textureInfo The glTF texture info property
     * @param assign A function called synchronously after parsing the glTF properties
     * @returns A promise that resolves with the loaded Babylon texture when the load is complete
     */
    GLTFLoader.prototype.loadTextureInfoAsync = function (context, textureInfo, assign) {
        var _this = this;
        if (assign === void 0) { assign = function () { }; }
        var extensionPromise = this._extensionsLoadTextureInfoAsync(context, textureInfo, assign);
        if (extensionPromise) {
            return extensionPromise;
        }
        this.logOpen("" + context);
        if (textureInfo.texCoord >= 2) {
            throw new Error(context + "/texCoord: Invalid value (" + textureInfo.texCoord + ")");
        }
        var texture = ArrayItem.Get(context + "/index", this._gltf.textures, textureInfo.index);
        texture._textureInfo = textureInfo;
        var promise = this._loadTextureAsync("/textures/" + textureInfo.index, texture, function (babylonTexture) {
            babylonTexture.coordinatesIndex = textureInfo.texCoord || 0;
            GLTFLoader.AddPointerMetadata(babylonTexture, context);
            _this._parent.onTextureLoadedObservable.notifyObservers(babylonTexture);
            assign(babylonTexture);
        });
        this.logClose();
        return promise;
    };
    /** @hidden */
    GLTFLoader.prototype._loadTextureAsync = function (context, texture, assign) {
        if (assign === void 0) { assign = function () { }; }
        var extensionPromise = this._extensionsLoadTextureAsync(context, texture, assign);
        if (extensionPromise) {
            return extensionPromise;
        }
        this.logOpen(context + " " + (texture.name || ""));
        var sampler = (texture.sampler == undefined ? GLTFLoader.DefaultSampler : ArrayItem.Get(context + "/sampler", this._gltf.samplers, texture.sampler));
        var image = ArrayItem.Get(context + "/source", this._gltf.images, texture.source);
        var promise = this._createTextureAsync(context, sampler, image, assign);
        this.logClose();
        return promise;
    };
    /** @hidden */
    GLTFLoader.prototype._createTextureAsync = function (context, sampler, image, assign, textureLoaderOptions) {
        var _this = this;
        if (assign === void 0) { assign = function () { }; }
        var samplerData = this._loadSampler("/samplers/" + sampler.index, sampler);
        var promises = new Array();
        var deferred = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Deferred"]();
        this._babylonScene._blockEntityCollection = this._forAssetContainer;
        var babylonTexture = new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"](null, this._babylonScene, samplerData.noMipMaps, false, samplerData.samplingMode, function () {
            if (!_this._disposed) {
                deferred.resolve();
            }
        }, function (message, exception) {
            if (!_this._disposed) {
                deferred.reject(new Error(context + ": " + ((exception && exception.message) ? exception.message : message || "Failed to load texture")));
            }
        }, undefined, undefined, undefined, image.mimeType, textureLoaderOptions);
        this._babylonScene._blockEntityCollection = false;
        promises.push(deferred.promise);
        promises.push(this.loadImageAsync("/images/" + image.index, image).then(function (data) {
            var name = image.uri || _this._fileName + "#image" + image.index;
            var dataUrl = "data:" + _this._uniqueRootUrl + name;
            babylonTexture.updateURL(dataUrl, data);
        }));
        babylonTexture.wrapU = samplerData.wrapU;
        babylonTexture.wrapV = samplerData.wrapV;
        assign(babylonTexture);
        return Promise.all(promises).then(function () {
            return babylonTexture;
        });
    };
    GLTFLoader.prototype._loadSampler = function (context, sampler) {
        if (!sampler._data) {
            sampler._data = {
                noMipMaps: (sampler.minFilter === 9728 /* NEAREST */ || sampler.minFilter === 9729 /* LINEAR */),
                samplingMode: GLTFLoader._GetTextureSamplingMode(context, sampler),
                wrapU: GLTFLoader._GetTextureWrapMode(context + "/wrapS", sampler.wrapS),
                wrapV: GLTFLoader._GetTextureWrapMode(context + "/wrapT", sampler.wrapT)
            };
        }
        return sampler._data;
    };
    /**
     * Loads a glTF image.
     * @param context The context when loading the asset
     * @param image The glTF image property
     * @returns A promise that resolves with the loaded data when the load is complete
     */
    GLTFLoader.prototype.loadImageAsync = function (context, image) {
        if (!image._data) {
            this.logOpen(context + " " + (image.name || ""));
            if (image.uri) {
                image._data = this.loadUriAsync(context + "/uri", image, image.uri);
            }
            else {
                var bufferView = ArrayItem.Get(context + "/bufferView", this._gltf.bufferViews, image.bufferView);
                image._data = this.loadBufferViewAsync("/bufferViews/" + bufferView.index, bufferView);
            }
            this.logClose();
        }
        return image._data;
    };
    /**
     * Loads a glTF uri.
     * @param context The context when loading the asset
     * @param property The glTF property associated with the uri
     * @param uri The base64 or relative uri
     * @returns A promise that resolves with the loaded data when the load is complete
     */
    GLTFLoader.prototype.loadUriAsync = function (context, property, uri) {
        var _this = this;
        var extensionPromise = this._extensionsLoadUriAsync(context, property, uri);
        if (extensionPromise) {
            return extensionPromise;
        }
        if (!GLTFLoader._ValidateUri(uri)) {
            throw new Error(context + ": '" + uri + "' is invalid");
        }
        if (babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Tools"].IsBase64(uri)) {
            var data = new Uint8Array(babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Tools"].DecodeBase64(uri));
            this.log(context + ": Decoded " + uri.substr(0, 64) + "... (" + data.length + " bytes)");
            return Promise.resolve(data);
        }
        this.log(context + ": Loading " + uri);
        return this._parent.preprocessUrlAsync(this._rootUrl + uri).then(function (url) {
            return new Promise(function (resolve, reject) {
                _this._parent._loadFile(url, _this._babylonScene, function (data) {
                    if (!_this._disposed) {
                        _this.log(context + ": Loaded " + uri + " (" + data.byteLength + " bytes)");
                        resolve(new Uint8Array(data));
                    }
                }, true, function (request) {
                    reject(new babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["LoadFileError"](context + ": Failed to load '" + uri + "'" + (request ? ": " + request.status + " " + request.statusText : ""), request));
                });
            });
        });
    };
    /**
     * Adds a JSON pointer to the metadata of the Babylon object at `<object>.metadata.gltf.pointers`.
     * @param babylonObject the Babylon object with metadata
     * @param pointer the JSON pointer
     */
    GLTFLoader.AddPointerMetadata = function (babylonObject, pointer) {
        var metadata = (babylonObject.metadata = babylonObject.metadata || {});
        var gltf = (metadata.gltf = metadata.gltf || {});
        var pointers = (gltf.pointers = gltf.pointers || []);
        pointers.push(pointer);
    };
    GLTFLoader._GetTextureWrapMode = function (context, mode) {
        // Set defaults if undefined
        mode = mode == undefined ? 10497 /* REPEAT */ : mode;
        switch (mode) {
            case 33071 /* CLAMP_TO_EDGE */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].CLAMP_ADDRESSMODE;
            case 33648 /* MIRRORED_REPEAT */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].MIRROR_ADDRESSMODE;
            case 10497 /* REPEAT */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].WRAP_ADDRESSMODE;
            default:
                babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn(context + ": Invalid value (" + mode + ")");
                return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].WRAP_ADDRESSMODE;
        }
    };
    GLTFLoader._GetTextureSamplingMode = function (context, sampler) {
        // Set defaults if undefined
        var magFilter = sampler.magFilter == undefined ? 9729 /* LINEAR */ : sampler.magFilter;
        var minFilter = sampler.minFilter == undefined ? 9987 /* LINEAR_MIPMAP_LINEAR */ : sampler.minFilter;
        if (magFilter === 9729 /* LINEAR */) {
            switch (minFilter) {
                case 9728 /* NEAREST */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].LINEAR_NEAREST;
                case 9729 /* LINEAR */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].LINEAR_LINEAR;
                case 9984 /* NEAREST_MIPMAP_NEAREST */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].LINEAR_NEAREST_MIPNEAREST;
                case 9985 /* LINEAR_MIPMAP_NEAREST */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].LINEAR_LINEAR_MIPNEAREST;
                case 9986 /* NEAREST_MIPMAP_LINEAR */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].LINEAR_NEAREST_MIPLINEAR;
                case 9987 /* LINEAR_MIPMAP_LINEAR */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].LINEAR_LINEAR_MIPLINEAR;
                default:
                    babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn(context + "/minFilter: Invalid value (" + minFilter + ")");
                    return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].LINEAR_LINEAR_MIPLINEAR;
            }
        }
        else {
            if (magFilter !== 9728 /* NEAREST */) {
                babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn(context + "/magFilter: Invalid value (" + magFilter + ")");
            }
            switch (minFilter) {
                case 9728 /* NEAREST */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].NEAREST_NEAREST;
                case 9729 /* LINEAR */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].NEAREST_LINEAR;
                case 9984 /* NEAREST_MIPMAP_NEAREST */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].NEAREST_NEAREST_MIPNEAREST;
                case 9985 /* LINEAR_MIPMAP_NEAREST */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].NEAREST_LINEAR_MIPNEAREST;
                case 9986 /* NEAREST_MIPMAP_LINEAR */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].NEAREST_NEAREST_MIPLINEAR;
                case 9987 /* LINEAR_MIPMAP_LINEAR */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].NEAREST_LINEAR_MIPLINEAR;
                default:
                    babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn(context + "/minFilter: Invalid value (" + minFilter + ")");
                    return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Texture"].NEAREST_NEAREST_MIPNEAREST;
            }
        }
    };
    GLTFLoader._GetTypedArrayConstructor = function (context, componentType) {
        switch (componentType) {
            case 5120 /* BYTE */: return Int8Array;
            case 5121 /* UNSIGNED_BYTE */: return Uint8Array;
            case 5122 /* SHORT */: return Int16Array;
            case 5123 /* UNSIGNED_SHORT */: return Uint16Array;
            case 5125 /* UNSIGNED_INT */: return Uint32Array;
            case 5126 /* FLOAT */: return Float32Array;
            default: throw new Error(context + ": Invalid component type " + componentType);
        }
    };
    GLTFLoader._GetTypedArray = function (context, componentType, bufferView, byteOffset, length) {
        var buffer = bufferView.buffer;
        byteOffset = bufferView.byteOffset + (byteOffset || 0);
        var constructor = GLTFLoader._GetTypedArrayConstructor(context + "/componentType", componentType);
        try {
            return new constructor(buffer, byteOffset, length);
        }
        catch (e) {
            throw new Error(context + ": " + e);
        }
    };
    GLTFLoader._GetNumComponents = function (context, type) {
        switch (type) {
            case "SCALAR": return 1;
            case "VEC2": return 2;
            case "VEC3": return 3;
            case "VEC4": return 4;
            case "MAT2": return 4;
            case "MAT3": return 9;
            case "MAT4": return 16;
        }
        throw new Error(context + ": Invalid type (" + type + ")");
    };
    GLTFLoader._ValidateUri = function (uri) {
        return (babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Tools"].IsBase64(uri) || uri.indexOf("..") === -1);
    };
    /** @hidden */
    GLTFLoader._GetDrawMode = function (context, mode) {
        if (mode == undefined) {
            mode = 4 /* TRIANGLES */;
        }
        switch (mode) {
            case 0 /* POINTS */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].PointListDrawMode;
            case 1 /* LINES */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].LineListDrawMode;
            case 2 /* LINE_LOOP */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].LineLoopDrawMode;
            case 3 /* LINE_STRIP */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].LineStripDrawMode;
            case 4 /* TRIANGLES */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].TriangleFillMode;
            case 5 /* TRIANGLE_STRIP */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].TriangleStripDrawMode;
            case 6 /* TRIANGLE_FAN */: return babylonjs_Misc_deferred__WEBPACK_IMPORTED_MODULE_0__["Material"].TriangleFanDrawMode;
        }
        throw new Error(context + ": Invalid mesh primitive mode (" + mode + ")");
    };
    GLTFLoader.prototype._compileMaterialsAsync = function () {
        var _this = this;
        this._parent._startPerformanceCounter("Compile materials");
        var promises = new Array();
        if (this._gltf.materials) {
            for (var _i = 0, _a = this._gltf.materials; _i < _a.length; _i++) {
                var material = _a[_i];
                if (material._data) {
                    for (var babylonDrawMode in material._data) {
                        var babylonData = material._data[babylonDrawMode];
                        for (var _b = 0, _c = babylonData.babylonMeshes; _b < _c.length; _b++) {
                            var babylonMesh = _c[_b];
                            // Ensure nonUniformScaling is set if necessary.
                            babylonMesh.computeWorldMatrix(true);
                            var babylonMaterial = babylonData.babylonMaterial;
                            promises.push(babylonMaterial.forceCompilationAsync(babylonMesh));
                            promises.push(babylonMaterial.forceCompilationAsync(babylonMesh, { useInstances: true }));
                            if (this._parent.useClipPlane) {
                                promises.push(babylonMaterial.forceCompilationAsync(babylonMesh, { clipPlane: true }));
                                promises.push(babylonMaterial.forceCompilationAsync(babylonMesh, { clipPlane: true, useInstances: true }));
                            }
                        }
                    }
                }
            }
        }
        return Promise.all(promises).then(function () {
            _this._parent._endPerformanceCounter("Compile materials");
        });
    };
    GLTFLoader.prototype._compileShadowGeneratorsAsync = function () {
        var _this = this;
        this._parent._startPerformanceCounter("Compile shadow generators");
        var promises = new Array();
        var lights = this._babylonScene.lights;
        for (var _i = 0, lights_1 = lights; _i < lights_1.length; _i++) {
            var light = lights_1[_i];
            var generator = light.getShadowGenerator();
            if (generator) {
                promises.push(generator.forceCompilationAsync());
            }
        }
        return Promise.all(promises).then(function () {
            _this._parent._endPerformanceCounter("Compile shadow generators");
        });
    };
    GLTFLoader.prototype._forEachExtensions = function (action) {
        for (var _i = 0, _a = this._extensions; _i < _a.length; _i++) {
            var extension = _a[_i];
            if (extension.enabled) {
                action(extension);
            }
        }
    };
    GLTFLoader.prototype._applyExtensions = function (property, functionName, actionAsync) {
        for (var _i = 0, _a = this._extensions; _i < _a.length; _i++) {
            var extension = _a[_i];
            if (extension.enabled) {
                var id = extension.name + "." + functionName;
                var loaderProperty = property;
                loaderProperty._activeLoaderExtensionFunctions = loaderProperty._activeLoaderExtensionFunctions || {};
                var activeLoaderExtensionFunctions = loaderProperty._activeLoaderExtensionFunctions;
                if (!activeLoaderExtensionFunctions[id]) {
                    activeLoaderExtensionFunctions[id] = true;
                    try {
                        var result = actionAsync(extension);
                        if (result) {
                            return result;
                        }
                    }
                    finally {
                        delete activeLoaderExtensionFunctions[id];
                    }
                }
            }
        }
        return null;
    };
    GLTFLoader.prototype._extensionsOnLoading = function () {
        this._forEachExtensions(function (extension) { return extension.onLoading && extension.onLoading(); });
    };
    GLTFLoader.prototype._extensionsOnReady = function () {
        this._forEachExtensions(function (extension) { return extension.onReady && extension.onReady(); });
    };
    GLTFLoader.prototype._extensionsLoadSceneAsync = function (context, scene) {
        return this._applyExtensions(scene, "loadScene", function (extension) { return extension.loadSceneAsync && extension.loadSceneAsync(context, scene); });
    };
    GLTFLoader.prototype._extensionsLoadNodeAsync = function (context, node, assign) {
        return this._applyExtensions(node, "loadNode", function (extension) { return extension.loadNodeAsync && extension.loadNodeAsync(context, node, assign); });
    };
    GLTFLoader.prototype._extensionsLoadCameraAsync = function (context, camera, assign) {
        return this._applyExtensions(camera, "loadCamera", function (extension) { return extension.loadCameraAsync && extension.loadCameraAsync(context, camera, assign); });
    };
    GLTFLoader.prototype._extensionsLoadVertexDataAsync = function (context, primitive, babylonMesh) {
        return this._applyExtensions(primitive, "loadVertexData", function (extension) { return extension._loadVertexDataAsync && extension._loadVertexDataAsync(context, primitive, babylonMesh); });
    };
    GLTFLoader.prototype._extensionsLoadMeshPrimitiveAsync = function (context, name, node, mesh, primitive, assign) {
        return this._applyExtensions(primitive, "loadMeshPrimitive", function (extension) { return extension._loadMeshPrimitiveAsync && extension._loadMeshPrimitiveAsync(context, name, node, mesh, primitive, assign); });
    };
    GLTFLoader.prototype._extensionsLoadMaterialAsync = function (context, material, babylonMesh, babylonDrawMode, assign) {
        return this._applyExtensions(material, "loadMaterial", function (extension) { return extension._loadMaterialAsync && extension._loadMaterialAsync(context, material, babylonMesh, babylonDrawMode, assign); });
    };
    GLTFLoader.prototype._extensionsCreateMaterial = function (context, material, babylonDrawMode) {
        return this._applyExtensions(material, "createMaterial", function (extension) { return extension.createMaterial && extension.createMaterial(context, material, babylonDrawMode); });
    };
    GLTFLoader.prototype._extensionsLoadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        return this._applyExtensions(material, "loadMaterialProperties", function (extension) { return extension.loadMaterialPropertiesAsync && extension.loadMaterialPropertiesAsync(context, material, babylonMaterial); });
    };
    GLTFLoader.prototype._extensionsLoadTextureInfoAsync = function (context, textureInfo, assign) {
        return this._applyExtensions(textureInfo, "loadTextureInfo", function (extension) { return extension.loadTextureInfoAsync && extension.loadTextureInfoAsync(context, textureInfo, assign); });
    };
    GLTFLoader.prototype._extensionsLoadTextureAsync = function (context, texture, assign) {
        return this._applyExtensions(texture, "loadTexture", function (extension) { return extension._loadTextureAsync && extension._loadTextureAsync(context, texture, assign); });
    };
    GLTFLoader.prototype._extensionsLoadAnimationAsync = function (context, animation) {
        return this._applyExtensions(animation, "loadAnimation", function (extension) { return extension.loadAnimationAsync && extension.loadAnimationAsync(context, animation); });
    };
    GLTFLoader.prototype._extensionsLoadSkinAsync = function (context, node, skin) {
        return this._applyExtensions(skin, "loadSkin", function (extension) { return extension._loadSkinAsync && extension._loadSkinAsync(context, node, skin); });
    };
    GLTFLoader.prototype._extensionsLoadUriAsync = function (context, property, uri) {
        return this._applyExtensions(property, "loadUri", function (extension) { return extension._loadUriAsync && extension._loadUriAsync(context, property, uri); });
    };
    GLTFLoader.prototype._extensionsLoadBufferViewAsync = function (context, bufferView) {
        return this._applyExtensions(bufferView, "loadBufferView", function (extension) { return extension.loadBufferViewAsync && extension.loadBufferViewAsync(context, bufferView); });
    };
    GLTFLoader.prototype._extensionsLoadBufferAsync = function (context, buffer, byteOffset, byteLength) {
        return this._applyExtensions(buffer, "loadBuffer", function (extension) { return extension.loadBufferAsync && extension.loadBufferAsync(context, buffer, byteOffset, byteLength); });
    };
    /**
     * Helper method called by a loader extension to load an glTF extension.
     * @param context The context when loading the asset
     * @param property The glTF property to load the extension from
     * @param extensionName The name of the extension to load
     * @param actionAsync The action to run
     * @returns The promise returned by actionAsync or null if the extension does not exist
     */
    GLTFLoader.LoadExtensionAsync = function (context, property, extensionName, actionAsync) {
        if (!property.extensions) {
            return null;
        }
        var extensions = property.extensions;
        var extension = extensions[extensionName];
        if (!extension) {
            return null;
        }
        return actionAsync(context + "/extensions/" + extensionName, extension);
    };
    /**
     * Helper method called by a loader extension to load a glTF extra.
     * @param context The context when loading the asset
     * @param property The glTF property to load the extra from
     * @param extensionName The name of the extension to load
     * @param actionAsync The action to run
     * @returns The promise returned by actionAsync or null if the extra does not exist
     */
    GLTFLoader.LoadExtraAsync = function (context, property, extensionName, actionAsync) {
        if (!property.extras) {
            return null;
        }
        var extras = property.extras;
        var extra = extras[extensionName];
        if (!extra) {
            return null;
        }
        return actionAsync(context + "/extras/" + extensionName, extra);
    };
    /**
     * Checks for presence of an extension.
     * @param name The name of the extension to check
     * @returns A boolean indicating the presence of the given extension name in `extensionsUsed`
     */
    GLTFLoader.prototype.isExtensionUsed = function (name) {
        return !!this._gltf.extensionsUsed && this._gltf.extensionsUsed.indexOf(name) !== -1;
    };
    /**
     * Increments the indentation level and logs a message.
     * @param message The message to log
     */
    GLTFLoader.prototype.logOpen = function (message) {
        this._parent._logOpen(message);
    };
    /**
     * Decrements the indentation level.
     */
    GLTFLoader.prototype.logClose = function () {
        this._parent._logClose();
    };
    /**
     * Logs a message
     * @param message The message to log
     */
    GLTFLoader.prototype.log = function (message) {
        this._parent._log(message);
    };
    /**
     * Starts a performance counter.
     * @param counterName The name of the performance counter
     */
    GLTFLoader.prototype.startPerformanceCounter = function (counterName) {
        this._parent._startPerformanceCounter(counterName);
    };
    /**
     * Ends a performance counter.
     * @param counterName The name of the performance counter
     */
    GLTFLoader.prototype.endPerformanceCounter = function (counterName) {
        this._parent._endPerformanceCounter(counterName);
    };
    GLTFLoader._RegisteredExtensions = {};
    /**
     * The default glTF sampler.
     */
    GLTFLoader.DefaultSampler = { index: -1 };
    return GLTFLoader;
}());

_glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFFileLoader"]._CreateGLTF2Loader = function (parent) { return new GLTFLoader(parent); };


/***/ }),

/***/ "./glTF/2.0/glTFLoaderExtension.ts":
/*!*****************************************!*\
  !*** ./glTF/2.0/glTFLoaderExtension.ts ***!
  \*****************************************/
/*! no exports provided */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);



/***/ }),

/***/ "./glTF/2.0/glTFLoaderInterfaces.ts":
/*!******************************************!*\
  !*** ./glTF/2.0/glTFLoaderInterfaces.ts ***!
  \******************************************/
/*! no exports provided */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);



/***/ }),

/***/ "./glTF/2.0/index.ts":
/*!***************************!*\
  !*** ./glTF/2.0/index.ts ***!
  \***************************/
/*! exports provided: ArrayItem, GLTFLoader, EXT_lights_image_based, EXT_mesh_gpu_instancing, EXT_meshopt_compression, EXT_texture_webp, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_materials_ior, KHR_materials_variants, KHR_materials_transmission, KHR_materials_translucency, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, KHR_xmp_json_ld, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./glTFLoader */ "./glTF/2.0/glTFLoader.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "ArrayItem", function() { return _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["ArrayItem"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFLoader", function() { return _glTFLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoader"]; });

/* harmony import */ var _glTFLoaderExtension__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./glTFLoaderExtension */ "./glTF/2.0/glTFLoaderExtension.ts");
/* empty/unused harmony star reexport *//* harmony import */ var _glTFLoaderInterfaces__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./glTFLoaderInterfaces */ "./glTF/2.0/glTFLoaderInterfaces.ts");
/* empty/unused harmony star reexport *//* harmony import */ var _Extensions__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./Extensions */ "./glTF/2.0/Extensions/index.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "EXT_lights_image_based", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["EXT_lights_image_based"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "EXT_mesh_gpu_instancing", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["EXT_mesh_gpu_instancing"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "EXT_meshopt_compression", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["EXT_meshopt_compression"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "EXT_texture_webp", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["EXT_texture_webp"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_draco_mesh_compression", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_draco_mesh_compression"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_lights", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_lights"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_pbrSpecularGlossiness", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_materials_pbrSpecularGlossiness"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_unlit", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_materials_unlit"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_clearcoat", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_materials_clearcoat"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_sheen", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_materials_sheen"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_specular", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_materials_specular"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_ior", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_materials_ior"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_variants", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_materials_variants"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_transmission", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_materials_transmission"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_translucency", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_materials_translucency"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_mesh_quantization"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_texture_basisu"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_transform", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_texture_transform"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_xmp_json_ld", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["KHR_xmp_json_ld"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_audio_emitter", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["MSFT_audio_emitter"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_lod", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["MSFT_lod"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_minecraftMesh", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["MSFT_minecraftMesh"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_sRGBFactors", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["MSFT_sRGBFactors"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "ExtrasAsMetadata", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_3__["ExtrasAsMetadata"]; });







/***/ }),

/***/ "./glTF/glTFFileLoader.ts":
/*!********************************!*\
  !*** ./glTF/glTFFileLoader.ts ***!
  \********************************/
/*! exports provided: GLTFLoaderCoordinateSystemMode, GLTFLoaderAnimationStartMode, GLTFLoaderState, GLTFFileLoader */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "GLTFLoaderCoordinateSystemMode", function() { return GLTFLoaderCoordinateSystemMode; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "GLTFLoaderAnimationStartMode", function() { return GLTFLoaderAnimationStartMode; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "GLTFLoaderState", function() { return GLTFLoaderState; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "GLTFFileLoader", function() { return GLTFFileLoader; });
/* harmony import */ var babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Misc/observable */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _glTFValidation__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./glTFValidation */ "./glTF/glTFValidation.ts");








/**
 * Mode that determines the coordinate system to use.
 */
var GLTFLoaderCoordinateSystemMode;
(function (GLTFLoaderCoordinateSystemMode) {
    /**
     * Automatically convert the glTF right-handed data to the appropriate system based on the current coordinate system mode of the scene.
     */
    GLTFLoaderCoordinateSystemMode[GLTFLoaderCoordinateSystemMode["AUTO"] = 0] = "AUTO";
    /**
     * Sets the useRightHandedSystem flag on the scene.
     */
    GLTFLoaderCoordinateSystemMode[GLTFLoaderCoordinateSystemMode["FORCE_RIGHT_HANDED"] = 1] = "FORCE_RIGHT_HANDED";
})(GLTFLoaderCoordinateSystemMode || (GLTFLoaderCoordinateSystemMode = {}));
/**
 * Mode that determines what animations will start.
 */
var GLTFLoaderAnimationStartMode;
(function (GLTFLoaderAnimationStartMode) {
    /**
     * No animation will start.
     */
    GLTFLoaderAnimationStartMode[GLTFLoaderAnimationStartMode["NONE"] = 0] = "NONE";
    /**
     * The first animation will start.
     */
    GLTFLoaderAnimationStartMode[GLTFLoaderAnimationStartMode["FIRST"] = 1] = "FIRST";
    /**
     * All animations will start.
     */
    GLTFLoaderAnimationStartMode[GLTFLoaderAnimationStartMode["ALL"] = 2] = "ALL";
})(GLTFLoaderAnimationStartMode || (GLTFLoaderAnimationStartMode = {}));
/**
 * Loader state.
 */
var GLTFLoaderState;
(function (GLTFLoaderState) {
    /**
     * The asset is loading.
     */
    GLTFLoaderState[GLTFLoaderState["LOADING"] = 0] = "LOADING";
    /**
     * The asset is ready for rendering.
     */
    GLTFLoaderState[GLTFLoaderState["READY"] = 1] = "READY";
    /**
     * The asset is completely loaded.
     */
    GLTFLoaderState[GLTFLoaderState["COMPLETE"] = 2] = "COMPLETE";
})(GLTFLoaderState || (GLTFLoaderState = {}));
/**
 * File loader for loading glTF files into a scene.
 */
var GLTFFileLoader = /** @class */ (function () {
    function GLTFFileLoader() {
        // --------------
        // Common options
        // --------------
        /**
         * Raised when the asset has been parsed
         */
        this.onParsedObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        // ----------
        // V2 options
        // ----------
        /**
         * The coordinate system mode. Defaults to AUTO.
         */
        this.coordinateSystemMode = GLTFLoaderCoordinateSystemMode.AUTO;
        /**
        * The animation start mode. Defaults to FIRST.
        */
        this.animationStartMode = GLTFLoaderAnimationStartMode.FIRST;
        /**
         * Defines if the loader should compile materials before raising the success callback. Defaults to false.
         */
        this.compileMaterials = false;
        /**
         * Defines if the loader should also compile materials with clip planes. Defaults to false.
         */
        this.useClipPlane = false;
        /**
         * Defines if the loader should compile shadow generators before raising the success callback. Defaults to false.
         */
        this.compileShadowGenerators = false;
        /**
         * Defines if the Alpha blended materials are only applied as coverage.
         * If false, (default) The luminance of each pixel will reduce its opacity to simulate the behaviour of most physical materials.
         * If true, no extra effects are applied to transparent pixels.
         */
        this.transparencyAsCoverage = false;
        /**
         * Defines if the loader should use range requests when load binary glTF files from HTTP.
         * Enabling will disable offline support and glTF validator.
         * Defaults to false.
         */
        this.useRangeRequests = false;
        /**
         * Defines if the loader should create instances when multiple glTF nodes point to the same glTF mesh. Defaults to true.
         */
        this.createInstances = true;
        /**
         * Defines if the loader should always compute the bounding boxes of meshes and not use the min/max values from the position accessor. Defaults to false.
         */
        this.alwaysComputeBoundingBox = false;
        /**
         * If true, load all materials defined in the file, even if not used by any mesh. Defaults to false.
         */
        this.loadAllMaterials = false;
        /**
         * Function called before loading a url referenced by the asset.
         */
        this.preprocessUrlAsync = function (url) { return Promise.resolve(url); };
        /**
         * Observable raised when the loader creates a mesh after parsing the glTF properties of the mesh.
         * Note that the observable is raised as soon as the mesh object is created, meaning some data may not have been setup yet for this mesh (vertex data, morph targets, material, ...)
         */
        this.onMeshLoadedObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        /**
         * Observable raised when the loader creates a texture after parsing the glTF properties of the texture.
         */
        this.onTextureLoadedObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        /**
         * Observable raised when the loader creates a material after parsing the glTF properties of the material.
         */
        this.onMaterialLoadedObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        /**
         * Observable raised when the loader creates a camera after parsing the glTF properties of the camera.
         */
        this.onCameraLoadedObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        /**
         * Observable raised when the asset is completely loaded, immediately before the loader is disposed.
         * For assets with LODs, raised when all of the LODs are complete.
         * For assets without LODs, raised when the model is complete, immediately after the loader resolves the returned promise.
         */
        this.onCompleteObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        /**
         * Observable raised when an error occurs.
         */
        this.onErrorObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        /**
         * Observable raised after the loader is disposed.
         */
        this.onDisposeObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        /**
         * Observable raised after a loader extension is created.
         * Set additional options for a loader extension in this event.
         */
        this.onExtensionLoadedObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        /**
         * Defines if the loader should validate the asset.
         */
        this.validate = false;
        /**
         * Observable raised after validation when validate is set to true. The event data is the result of the validation.
         */
        this.onValidatedObservable = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]();
        this._loader = null;
        this._requests = new Array();
        /**
         * Name of the loader ("gltf")
         */
        this.name = "gltf";
        /** @hidden */
        this.extensions = {
            ".gltf": { isBinary: false },
            ".glb": { isBinary: true }
        };
        this._logIndentLevel = 0;
        this._loggingEnabled = false;
        /** @hidden */
        this._log = this._logDisabled;
        this._capturePerformanceCounters = false;
        /** @hidden */
        this._startPerformanceCounter = this._startPerformanceCounterDisabled;
        /** @hidden */
        this._endPerformanceCounter = this._endPerformanceCounterDisabled;
    }
    Object.defineProperty(GLTFFileLoader.prototype, "onParsed", {
        /**
         * Raised when the asset has been parsed
         */
        set: function (callback) {
            if (this._onParsedObserver) {
                this.onParsedObservable.remove(this._onParsedObserver);
            }
            this._onParsedObserver = this.onParsedObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onMeshLoaded", {
        /**
         * Callback raised when the loader creates a mesh after parsing the glTF properties of the mesh.
         * Note that the callback is called as soon as the mesh object is created, meaning some data may not have been setup yet for this mesh (vertex data, morph targets, material, ...)
         */
        set: function (callback) {
            if (this._onMeshLoadedObserver) {
                this.onMeshLoadedObservable.remove(this._onMeshLoadedObserver);
            }
            this._onMeshLoadedObserver = this.onMeshLoadedObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onTextureLoaded", {
        /**
         * Callback raised when the loader creates a texture after parsing the glTF properties of the texture.
         */
        set: function (callback) {
            if (this._onTextureLoadedObserver) {
                this.onTextureLoadedObservable.remove(this._onTextureLoadedObserver);
            }
            this._onTextureLoadedObserver = this.onTextureLoadedObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onMaterialLoaded", {
        /**
         * Callback raised when the loader creates a material after parsing the glTF properties of the material.
         */
        set: function (callback) {
            if (this._onMaterialLoadedObserver) {
                this.onMaterialLoadedObservable.remove(this._onMaterialLoadedObserver);
            }
            this._onMaterialLoadedObserver = this.onMaterialLoadedObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onCameraLoaded", {
        /**
         * Callback raised when the loader creates a camera after parsing the glTF properties of the camera.
         */
        set: function (callback) {
            if (this._onCameraLoadedObserver) {
                this.onCameraLoadedObservable.remove(this._onCameraLoadedObserver);
            }
            this._onCameraLoadedObserver = this.onCameraLoadedObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onComplete", {
        /**
         * Callback raised when the asset is completely loaded, immediately before the loader is disposed.
         * For assets with LODs, raised when all of the LODs are complete.
         * For assets without LODs, raised when the model is complete, immediately after the loader resolves the returned promise.
         */
        set: function (callback) {
            if (this._onCompleteObserver) {
                this.onCompleteObservable.remove(this._onCompleteObserver);
            }
            this._onCompleteObserver = this.onCompleteObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onError", {
        /**
         * Callback raised when an error occurs.
         */
        set: function (callback) {
            if (this._onErrorObserver) {
                this.onErrorObservable.remove(this._onErrorObserver);
            }
            this._onErrorObserver = this.onErrorObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onDispose", {
        /**
         * Callback raised after the loader is disposed.
         */
        set: function (callback) {
            if (this._onDisposeObserver) {
                this.onDisposeObservable.remove(this._onDisposeObserver);
            }
            this._onDisposeObserver = this.onDisposeObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onExtensionLoaded", {
        /**
         * Callback raised after a loader extension is created.
         */
        set: function (callback) {
            if (this._onExtensionLoadedObserver) {
                this.onExtensionLoadedObservable.remove(this._onExtensionLoadedObserver);
            }
            this._onExtensionLoadedObserver = this.onExtensionLoadedObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "loggingEnabled", {
        /**
         * Defines if the loader logging is enabled.
         */
        get: function () {
            return this._loggingEnabled;
        },
        set: function (value) {
            if (this._loggingEnabled === value) {
                return;
            }
            this._loggingEnabled = value;
            if (this._loggingEnabled) {
                this._log = this._logEnabled;
            }
            else {
                this._log = this._logDisabled;
            }
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "capturePerformanceCounters", {
        /**
         * Defines if the loader should capture performance counters.
         */
        get: function () {
            return this._capturePerformanceCounters;
        },
        set: function (value) {
            if (this._capturePerformanceCounters === value) {
                return;
            }
            this._capturePerformanceCounters = value;
            if (this._capturePerformanceCounters) {
                this._startPerformanceCounter = this._startPerformanceCounterEnabled;
                this._endPerformanceCounter = this._endPerformanceCounterEnabled;
            }
            else {
                this._startPerformanceCounter = this._startPerformanceCounterDisabled;
                this._endPerformanceCounter = this._endPerformanceCounterDisabled;
            }
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onValidated", {
        /**
         * Callback raised after a loader extension is created.
         */
        set: function (callback) {
            if (this._onValidatedObserver) {
                this.onValidatedObservable.remove(this._onValidatedObserver);
            }
            this._onValidatedObserver = this.onValidatedObservable.add(callback);
        },
        enumerable: false,
        configurable: true
    });
    /**
     * Disposes the loader, releases resources during load, and cancels any outstanding requests.
     */
    GLTFFileLoader.prototype.dispose = function () {
        if (this._loader) {
            this._loader.dispose();
            this._loader = null;
        }
        for (var _i = 0, _a = this._requests; _i < _a.length; _i++) {
            var request = _a[_i];
            request.abort();
        }
        this._requests.length = 0;
        delete this._progressCallback;
        this.preprocessUrlAsync = function (url) { return Promise.resolve(url); };
        this.onMeshLoadedObservable.clear();
        this.onTextureLoadedObservable.clear();
        this.onMaterialLoadedObservable.clear();
        this.onCameraLoadedObservable.clear();
        this.onCompleteObservable.clear();
        this.onExtensionLoadedObservable.clear();
        this.onDisposeObservable.notifyObservers(undefined);
        this.onDisposeObservable.clear();
    };
    /** @hidden */
    GLTFFileLoader.prototype.requestFile = function (scene, url, onSuccess, onProgress, useArrayBuffer, onError) {
        var _this = this;
        this._progressCallback = onProgress;
        if (useArrayBuffer) {
            if (this.useRangeRequests) {
                if (this.validate) {
                    babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Logger"].Warn("glTF validation is not supported when range requests are enabled");
                }
                var fileRequest_1 = {
                    abort: function () { },
                    onCompleteObservable: new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Observable"]()
                };
                var dataBuffer = {
                    readAsync: function (byteOffset, byteLength) {
                        return new Promise(function (resolve, reject) {
                            _this._requestFile(url, scene, function (data) {
                                resolve(new Uint8Array(data));
                            }, true, function (error) {
                                reject(error);
                            }, function (webRequest) {
                                webRequest.setRequestHeader("Range", "bytes=" + byteOffset + "-" + (byteOffset + byteLength - 1));
                            });
                        });
                    },
                    byteLength: 0
                };
                this._unpackBinaryAsync(new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["DataReader"](dataBuffer)).then(function (loaderData) {
                    fileRequest_1.onCompleteObservable.notifyObservers(fileRequest_1);
                    onSuccess(loaderData);
                }, onError);
                return fileRequest_1;
            }
            return this._requestFile(url, scene, function (data, request) {
                var arrayBuffer = data;
                _this._unpackBinaryAsync(new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["DataReader"]({
                    readAsync: function (byteOffset, byteLength) { return Promise.resolve(new Uint8Array(arrayBuffer, byteOffset, byteLength)); },
                    byteLength: arrayBuffer.byteLength
                })).then(function (loaderData) {
                    onSuccess(loaderData, request);
                }, onError);
            }, true, onError);
        }
        return this._requestFile(url, scene, function (data, request) {
            _this._validate(scene, data, babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Tools"].GetFolderPath(url), babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Tools"].GetFilename(url));
            onSuccess({ json: _this._parseJson(data) }, request);
        }, useArrayBuffer, onError);
    };
    /** @hidden */
    GLTFFileLoader.prototype.readFile = function (scene, file, onSuccess, onProgress, useArrayBuffer, onError) {
        var _this = this;
        return scene._readFile(file, function (data) {
            _this._validate(scene, data, "file:", file.name);
            if (useArrayBuffer) {
                var arrayBuffer_1 = data;
                _this._unpackBinaryAsync(new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["DataReader"]({
                    readAsync: function (byteOffset, byteLength) { return Promise.resolve(new Uint8Array(arrayBuffer_1, byteOffset, byteLength)); },
                    byteLength: arrayBuffer_1.byteLength
                })).then(onSuccess, onError);
            }
            else {
                onSuccess({ json: _this._parseJson(data) });
            }
        }, onProgress, useArrayBuffer, onError);
    };
    /** @hidden */
    GLTFFileLoader.prototype.importMeshAsync = function (meshesNames, scene, data, rootUrl, onProgress, fileName) {
        var _this = this;
        return Promise.resolve().then(function () {
            _this.onParsedObservable.notifyObservers(data);
            _this.onParsedObservable.clear();
            _this._log("Loading " + (fileName || ""));
            _this._loader = _this._getLoader(data);
            return _this._loader.importMeshAsync(meshesNames, scene, false, data, rootUrl, onProgress, fileName);
        });
    };
    /** @hidden */
    GLTFFileLoader.prototype.loadAsync = function (scene, data, rootUrl, onProgress, fileName) {
        var _this = this;
        return Promise.resolve().then(function () {
            _this.onParsedObservable.notifyObservers(data);
            _this.onParsedObservable.clear();
            _this._log("Loading " + (fileName || ""));
            _this._loader = _this._getLoader(data);
            return _this._loader.loadAsync(scene, data, rootUrl, onProgress, fileName);
        });
    };
    /** @hidden */
    GLTFFileLoader.prototype.loadAssetContainerAsync = function (scene, data, rootUrl, onProgress, fileName) {
        var _this = this;
        return Promise.resolve().then(function () {
            _this.onParsedObservable.notifyObservers(data);
            _this.onParsedObservable.clear();
            _this._log("Loading " + (fileName || ""));
            _this._loader = _this._getLoader(data);
            // Prepare the asset container.
            var container = new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["AssetContainer"](scene);
            // Get materials/textures when loading to add to container
            var materials = [];
            _this.onMaterialLoadedObservable.add(function (material) {
                materials.push(material);
                material.onDisposeObservable.addOnce(function () {
                    var index = container.materials.indexOf(material);
                    if (index > -1) {
                        container.materials.splice(index, 1);
                    }
                    index = materials.indexOf(material);
                    if (index > -1) {
                        materials.splice(index, 1);
                    }
                });
            });
            var textures = [];
            _this.onTextureLoadedObservable.add(function (texture) {
                textures.push(texture);
                texture.onDisposeObservable.addOnce(function () {
                    var index = container.textures.indexOf(texture);
                    if (index > -1) {
                        container.textures.splice(index, 1);
                    }
                    index = textures.indexOf(texture);
                    if (index > -1) {
                        textures.splice(index, 1);
                    }
                });
            });
            var cameras = [];
            _this.onCameraLoadedObservable.add(function (camera) {
                cameras.push(camera);
            });
            return _this._loader.importMeshAsync(null, scene, true, data, rootUrl, onProgress, fileName).then(function (result) {
                Array.prototype.push.apply(container.geometries, result.geometries);
                Array.prototype.push.apply(container.meshes, result.meshes);
                Array.prototype.push.apply(container.particleSystems, result.particleSystems);
                Array.prototype.push.apply(container.skeletons, result.skeletons);
                Array.prototype.push.apply(container.animationGroups, result.animationGroups);
                Array.prototype.push.apply(container.materials, materials);
                Array.prototype.push.apply(container.textures, textures);
                Array.prototype.push.apply(container.lights, result.lights);
                Array.prototype.push.apply(container.transformNodes, result.transformNodes);
                Array.prototype.push.apply(container.cameras, cameras);
                return container;
            });
        });
    };
    /** @hidden */
    GLTFFileLoader.prototype.canDirectLoad = function (data) {
        return (data.indexOf("asset") !== -1 && data.indexOf("version") !== -1)
            || babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["StringTools"].StartsWith(data, "data:base64," + GLTFFileLoader.magicBase64Encoded)
            || babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["StringTools"].StartsWith(data, "data:application/octet-stream;base64," + GLTFFileLoader.magicBase64Encoded)
            || babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["StringTools"].StartsWith(data, "data:model/gltf-binary;base64," + GLTFFileLoader.magicBase64Encoded);
    };
    /** @hidden */
    GLTFFileLoader.prototype.directLoad = function (scene, data) {
        if (babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["StringTools"].StartsWith(data, "base64," + GLTFFileLoader.magicBase64Encoded) ||
            babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["StringTools"].StartsWith(data, "application/octet-stream;base64," + GLTFFileLoader.magicBase64Encoded) ||
            babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["StringTools"].StartsWith(data, "model/gltf-binary;base64," + GLTFFileLoader.magicBase64Encoded)) {
            var arrayBuffer_2 = babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Tools"].DecodeBase64(data);
            this._validate(scene, arrayBuffer_2);
            return this._unpackBinaryAsync(new babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["DataReader"]({
                readAsync: function (byteOffset, byteLength) { return Promise.resolve(new Uint8Array(arrayBuffer_2, byteOffset, byteLength)); },
                byteLength: arrayBuffer_2.byteLength
            }));
        }
        this._validate(scene, data);
        return Promise.resolve({ json: this._parseJson(data) });
    };
    /** @hidden */
    GLTFFileLoader.prototype.createPlugin = function () {
        return new GLTFFileLoader();
    };
    Object.defineProperty(GLTFFileLoader.prototype, "loaderState", {
        /**
         * The loader state or null if the loader is not active.
         */
        get: function () {
            return this._loader ? this._loader.state : null;
        },
        enumerable: false,
        configurable: true
    });
    /**
     * Returns a promise that resolves when the asset is completely loaded.
     * @returns a promise that resolves when the asset is completely loaded.
     */
    GLTFFileLoader.prototype.whenCompleteAsync = function () {
        var _this = this;
        return new Promise(function (resolve, reject) {
            _this.onCompleteObservable.addOnce(function () {
                resolve();
            });
            _this.onErrorObservable.addOnce(function (reason) {
                reject(reason);
            });
        });
    };
    /** @hidden */
    GLTFFileLoader.prototype._loadFile = function (url, scene, onSuccess, useArrayBuffer, onError) {
        var _this = this;
        var request = scene._loadFile(url, onSuccess, function (event) {
            _this._onProgress(event, request);
        }, undefined, useArrayBuffer, onError);
        request.onCompleteObservable.add(function (request) {
            _this._requests.splice(_this._requests.indexOf(request), 1);
        });
        this._requests.push(request);
        return request;
    };
    /** @hidden */
    GLTFFileLoader.prototype._requestFile = function (url, scene, onSuccess, useArrayBuffer, onError, onOpened) {
        var _this = this;
        var request = scene._requestFile(url, onSuccess, function (event) {
            _this._onProgress(event, request);
        }, undefined, useArrayBuffer, onError, onOpened);
        request.onCompleteObservable.add(function (request) {
            _this._requests.splice(_this._requests.indexOf(request), 1);
        });
        this._requests.push(request);
        return request;
    };
    GLTFFileLoader.prototype._onProgress = function (event, request) {
        if (!this._progressCallback) {
            return;
        }
        request._lengthComputable = event.lengthComputable;
        request._loaded = event.loaded;
        request._total = event.total;
        var lengthComputable = true;
        var loaded = 0;
        var total = 0;
        for (var _i = 0, _a = this._requests; _i < _a.length; _i++) {
            var request_1 = _a[_i];
            if (request_1._lengthComputable === undefined || request_1._loaded === undefined || request_1._total === undefined) {
                return;
            }
            lengthComputable = lengthComputable && request_1._lengthComputable;
            loaded += request_1._loaded;
            total += request_1._total;
        }
        this._progressCallback({
            lengthComputable: lengthComputable,
            loaded: loaded,
            total: lengthComputable ? total : 0
        });
    };
    GLTFFileLoader.prototype._validate = function (scene, data, rootUrl, fileName) {
        var _this = this;
        if (rootUrl === void 0) { rootUrl = ""; }
        if (fileName === void 0) { fileName = ""; }
        if (!this.validate) {
            return;
        }
        this._startPerformanceCounter("Validate JSON");
        _glTFValidation__WEBPACK_IMPORTED_MODULE_1__["GLTFValidation"].ValidateAsync(data, rootUrl, fileName, function (uri) {
            return _this.preprocessUrlAsync(rootUrl + uri).then(function (url) { return scene._loadFileAsync(url, undefined, true, true); });
        }).then(function (result) {
            _this._endPerformanceCounter("Validate JSON");
            _this.onValidatedObservable.notifyObservers(result);
            _this.onValidatedObservable.clear();
        }, function (reason) {
            _this._endPerformanceCounter("Validate JSON");
            babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Tools"].Warn("Failed to validate: " + reason.message);
            _this.onValidatedObservable.clear();
        });
    };
    GLTFFileLoader.prototype._getLoader = function (loaderData) {
        var asset = loaderData.json.asset || {};
        this._log("Asset version: " + asset.version);
        asset.minVersion && this._log("Asset minimum version: " + asset.minVersion);
        asset.generator && this._log("Asset generator: " + asset.generator);
        var version = GLTFFileLoader._parseVersion(asset.version);
        if (!version) {
            throw new Error("Invalid version: " + asset.version);
        }
        if (asset.minVersion !== undefined) {
            var minVersion = GLTFFileLoader._parseVersion(asset.minVersion);
            if (!minVersion) {
                throw new Error("Invalid minimum version: " + asset.minVersion);
            }
            if (GLTFFileLoader._compareVersion(minVersion, { major: 2, minor: 0 }) > 0) {
                throw new Error("Incompatible minimum version: " + asset.minVersion);
            }
        }
        var createLoaders = {
            1: GLTFFileLoader._CreateGLTF1Loader,
            2: GLTFFileLoader._CreateGLTF2Loader
        };
        var createLoader = createLoaders[version.major];
        if (!createLoader) {
            throw new Error("Unsupported version: " + asset.version);
        }
        return createLoader(this);
    };
    GLTFFileLoader.prototype._parseJson = function (json) {
        this._startPerformanceCounter("Parse JSON");
        this._log("JSON length: " + json.length);
        var parsed = JSON.parse(json);
        this._endPerformanceCounter("Parse JSON");
        return parsed;
    };
    GLTFFileLoader.prototype._unpackBinaryAsync = function (dataReader) {
        var _this = this;
        this._startPerformanceCounter("Unpack Binary");
        // Read magic + version + length + json length + json format
        return dataReader.loadAsync(20).then(function () {
            var Binary = {
                Magic: 0x46546C67
            };
            var magic = dataReader.readUint32();
            if (magic !== Binary.Magic) {
                throw new Error("Unexpected magic: " + magic);
            }
            var version = dataReader.readUint32();
            if (_this.loggingEnabled) {
                _this._log("Binary version: " + version);
            }
            var length = dataReader.readUint32();
            if (dataReader.buffer.byteLength !== 0 && length !== dataReader.buffer.byteLength) {
                throw new Error("Length in header does not match actual data length: " + length + " != " + dataReader.buffer.byteLength);
            }
            var unpacked;
            switch (version) {
                case 1: {
                    unpacked = _this._unpackBinaryV1Async(dataReader, length);
                    break;
                }
                case 2: {
                    unpacked = _this._unpackBinaryV2Async(dataReader, length);
                    break;
                }
                default: {
                    throw new Error("Unsupported version: " + version);
                }
            }
            _this._endPerformanceCounter("Unpack Binary");
            return unpacked;
        });
    };
    GLTFFileLoader.prototype._unpackBinaryV1Async = function (dataReader, length) {
        var ContentFormat = {
            JSON: 0
        };
        var contentLength = dataReader.readUint32();
        var contentFormat = dataReader.readUint32();
        if (contentFormat !== ContentFormat.JSON) {
            throw new Error("Unexpected content format: " + contentFormat);
        }
        var bodyLength = length - dataReader.byteOffset;
        var data = { json: this._parseJson(dataReader.readString(contentLength)), bin: null };
        if (bodyLength !== 0) {
            var startByteOffset_1 = dataReader.byteOffset;
            data.bin = {
                readAsync: function (byteOffset, byteLength) { return dataReader.buffer.readAsync(startByteOffset_1 + byteOffset, byteLength); },
                byteLength: bodyLength
            };
        }
        return Promise.resolve(data);
    };
    GLTFFileLoader.prototype._unpackBinaryV2Async = function (dataReader, length) {
        var _this = this;
        var ChunkFormat = {
            JSON: 0x4E4F534A,
            BIN: 0x004E4942
        };
        // Read the JSON chunk header.
        var chunkLength = dataReader.readUint32();
        var chunkFormat = dataReader.readUint32();
        if (chunkFormat !== ChunkFormat.JSON) {
            throw new Error("First chunk format is not JSON");
        }
        // Bail if there are no other chunks.
        if (dataReader.byteOffset + chunkLength === length) {
            return dataReader.loadAsync(chunkLength).then(function () {
                return { json: _this._parseJson(dataReader.readString(chunkLength)), bin: null };
            });
        }
        // Read the JSON chunk and the length and type of the next chunk.
        return dataReader.loadAsync(chunkLength + 8).then(function () {
            var data = { json: _this._parseJson(dataReader.readString(chunkLength)), bin: null };
            var readAsync = function () {
                var chunkLength = dataReader.readUint32();
                var chunkFormat = dataReader.readUint32();
                switch (chunkFormat) {
                    case ChunkFormat.JSON: {
                        throw new Error("Unexpected JSON chunk");
                    }
                    case ChunkFormat.BIN: {
                        var startByteOffset_2 = dataReader.byteOffset;
                        data.bin = {
                            readAsync: function (byteOffset, byteLength) { return dataReader.buffer.readAsync(startByteOffset_2 + byteOffset, byteLength); },
                            byteLength: chunkLength
                        };
                        dataReader.skipBytes(chunkLength);
                        break;
                    }
                    default: {
                        // ignore unrecognized chunkFormat
                        dataReader.skipBytes(chunkLength);
                        break;
                    }
                }
                if (dataReader.byteOffset !== length) {
                    return dataReader.loadAsync(8).then(readAsync);
                }
                return Promise.resolve(data);
            };
            return readAsync();
        });
    };
    GLTFFileLoader._parseVersion = function (version) {
        if (version === "1.0" || version === "1.0.1") {
            return {
                major: 1,
                minor: 0
            };
        }
        var match = (version + "").match(/^(\d+)\.(\d+)/);
        if (!match) {
            return null;
        }
        return {
            major: parseInt(match[1]),
            minor: parseInt(match[2])
        };
    };
    GLTFFileLoader._compareVersion = function (a, b) {
        if (a.major > b.major) {
            return 1;
        }
        if (a.major < b.major) {
            return -1;
        }
        if (a.minor > b.minor) {
            return 1;
        }
        if (a.minor < b.minor) {
            return -1;
        }
        return 0;
    };
    /** @hidden */
    GLTFFileLoader.prototype._logOpen = function (message) {
        this._log(message);
        this._logIndentLevel++;
    };
    /** @hidden */
    GLTFFileLoader.prototype._logClose = function () {
        --this._logIndentLevel;
    };
    GLTFFileLoader.prototype._logEnabled = function (message) {
        var spaces = GLTFFileLoader._logSpaces.substr(0, this._logIndentLevel * 2);
        babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Logger"].Log("" + spaces + message);
    };
    GLTFFileLoader.prototype._logDisabled = function (message) {
    };
    GLTFFileLoader.prototype._startPerformanceCounterEnabled = function (counterName) {
        babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Tools"].StartPerformanceCounter(counterName);
    };
    GLTFFileLoader.prototype._startPerformanceCounterDisabled = function (counterName) {
    };
    GLTFFileLoader.prototype._endPerformanceCounterEnabled = function (counterName) {
        babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["Tools"].EndPerformanceCounter(counterName);
    };
    GLTFFileLoader.prototype._endPerformanceCounterDisabled = function (counterName) {
    };
    // ----------
    // V1 options
    // ----------
    /**
     * Set this property to false to disable incremental loading which delays the loader from calling the success callback until after loading the meshes and shaders.
     * Textures always loads asynchronously. For example, the success callback can compute the bounding information of the loaded meshes when incremental loading is disabled.
     * Defaults to true.
     * @hidden
     */
    GLTFFileLoader.IncrementalLoading = true;
    /**
     * Set this property to true in order to work with homogeneous coordinates, available with some converters and exporters.
     * Defaults to false. See https://en.wikipedia.org/wiki/Homogeneous_coordinates.
     * @hidden
     */
    GLTFFileLoader.HomogeneousCoordinates = false;
    GLTFFileLoader.magicBase64Encoded = "Z2xURg"; // "glTF" base64 encoded (without the quotes!)
    GLTFFileLoader._logSpaces = "                                ";
    return GLTFFileLoader;
}());

if (babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["SceneLoader"]) {
    babylonjs_Misc_observable__WEBPACK_IMPORTED_MODULE_0__["SceneLoader"].RegisterPlugin(new GLTFFileLoader());
}


/***/ }),

/***/ "./glTF/glTFValidation.ts":
/*!********************************!*\
  !*** ./glTF/glTFValidation.ts ***!
  \********************************/
/*! exports provided: GLTFValidation */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "GLTFValidation", function() { return GLTFValidation; });
/* harmony import */ var babylonjs_Misc_tools__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Misc/tools */ "babylonjs/Misc/observable");
/* harmony import */ var babylonjs_Misc_tools__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Misc_tools__WEBPACK_IMPORTED_MODULE_0__);

function validateAsync(data, rootUrl, fileName, getExternalResource) {
    var options = {
        externalResourceFunction: function (uri) { return getExternalResource(uri).then(function (value) { return new Uint8Array(value); }); }
    };
    if (fileName) {
        options.uri = (rootUrl === "file:" ? fileName : rootUrl + fileName);
    }
    return (data instanceof ArrayBuffer)
        ? GLTFValidator.validateBytes(new Uint8Array(data), options)
        : GLTFValidator.validateString(data, options);
}
/**
 * The worker function that gets converted to a blob url to pass into a worker.
 */
function workerFunc() {
    var pendingExternalResources = [];
    onmessage = function (message) {
        var data = message.data;
        switch (data.id) {
            case "init": {
                importScripts(data.url);
                break;
            }
            case "validate": {
                validateAsync(data.data, data.rootUrl, data.fileName, function (uri) { return new Promise(function (resolve, reject) {
                    var index = pendingExternalResources.length;
                    pendingExternalResources.push({ resolve: resolve, reject: reject });
                    postMessage({ id: "getExternalResource", index: index, uri: uri });
                }); }).then(function (value) {
                    postMessage({ id: "validate.resolve", value: value });
                }, function (reason) {
                    postMessage({ id: "validate.reject", reason: reason });
                });
                break;
            }
            case "getExternalResource.resolve": {
                pendingExternalResources[data.index].resolve(data.value);
                break;
            }
            case "getExternalResource.reject": {
                pendingExternalResources[data.index].reject(data.reason);
                break;
            }
        }
    };
}
/**
 * glTF validation
 */
var GLTFValidation = /** @class */ (function () {
    function GLTFValidation() {
    }
    /**
     * Validate a glTF asset using the glTF-Validator.
     * @param data The JSON of a glTF or the array buffer of a binary glTF
     * @param rootUrl The root url for the glTF
     * @param fileName The file name for the glTF
     * @param getExternalResource The callback to get external resources for the glTF validator
     * @returns A promise that resolves with the glTF validation results once complete
     */
    GLTFValidation.ValidateAsync = function (data, rootUrl, fileName, getExternalResource) {
        var _this = this;
        if (typeof Worker === "function") {
            return new Promise(function (resolve, reject) {
                var workerContent = validateAsync + "(" + workerFunc + ")()";
                var workerBlobUrl = URL.createObjectURL(new Blob([workerContent], { type: "application/javascript" }));
                var worker = new Worker(workerBlobUrl);
                var onError = function (error) {
                    worker.removeEventListener("error", onError);
                    worker.removeEventListener("message", onMessage);
                    reject(error);
                };
                var onMessage = function (message) {
                    var data = message.data;
                    switch (data.id) {
                        case "getExternalResource": {
                            getExternalResource(data.uri).then(function (value) {
                                worker.postMessage({ id: "getExternalResource.resolve", index: data.index, value: value }, [value]);
                            }, function (reason) {
                                worker.postMessage({ id: "getExternalResource.reject", index: data.index, reason: reason });
                            });
                            break;
                        }
                        case "validate.resolve": {
                            worker.removeEventListener("error", onError);
                            worker.removeEventListener("message", onMessage);
                            resolve(data.value);
                            break;
                        }
                        case "validate.reject": {
                            worker.removeEventListener("error", onError);
                            worker.removeEventListener("message", onMessage);
                            reject(data.reason);
                        }
                    }
                };
                worker.addEventListener("error", onError);
                worker.addEventListener("message", onMessage);
                worker.postMessage({ id: "init", url: _this.Configuration.url });
                worker.postMessage({ id: "validate", data: data, rootUrl: rootUrl, fileName: fileName });
            });
        }
        else {
            if (!this._LoadScriptPromise) {
                this._LoadScriptPromise = babylonjs_Misc_tools__WEBPACK_IMPORTED_MODULE_0__["Tools"].LoadScriptAsync(this.Configuration.url);
            }
            return this._LoadScriptPromise.then(function () {
                return validateAsync(data, rootUrl, fileName, getExternalResource);
            });
        }
    };
    /**
     * The configuration. Defaults to `{ url: "https://preview.babylonjs.com/gltf_validator.js" }`.
     */
    GLTFValidation.Configuration = {
        url: "https://preview.babylonjs.com/gltf_validator.js"
    };
    return GLTFValidation;
}());



/***/ }),

/***/ "./legacy/legacy-glTF.ts":
/*!*******************************!*\
  !*** ./legacy/legacy-glTF.ts ***!
  \*******************************/
/*! exports provided: GLTFLoaderCoordinateSystemMode, GLTFLoaderAnimationStartMode, GLTFLoaderState, GLTFFileLoader, GLTFValidation */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* WEBPACK VAR INJECTION */(function(global) {/* harmony import */ var _glTF_glTFFileLoader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../glTF/glTFFileLoader */ "./glTF/glTFFileLoader.ts");
/* harmony import */ var _glTF_glTFValidation__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTF/glTFValidation */ "./glTF/glTFValidation.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFLoaderCoordinateSystemMode", function() { return _glTF_glTFFileLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoaderCoordinateSystemMode"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFLoaderAnimationStartMode", function() { return _glTF_glTFFileLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoaderAnimationStartMode"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFLoaderState", function() { return _glTF_glTFFileLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFLoaderState"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFFileLoader", function() { return _glTF_glTFFileLoader__WEBPACK_IMPORTED_MODULE_0__["GLTFFileLoader"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFValidation", function() { return _glTF_glTFValidation__WEBPACK_IMPORTED_MODULE_1__["GLTFValidation"]; });



/**
 * This is the entry point for the UMD module.
 * The entry point for a future ESM package should be index.ts
 */
var globalObject = (typeof global !== 'undefined') ? global : ((typeof window !== 'undefined') ? window : undefined);
if (typeof globalObject !== "undefined") {
    globalObject.BABYLON = globalObject.BABYLON || {};
    for (var key in _glTF_glTFFileLoader__WEBPACK_IMPORTED_MODULE_0__) {
        globalObject.BABYLON[key] = _glTF_glTFFileLoader__WEBPACK_IMPORTED_MODULE_0__[key];
    }
    for (var key in _glTF_glTFValidation__WEBPACK_IMPORTED_MODULE_1__) {
        globalObject.BABYLON[key] = _glTF_glTFValidation__WEBPACK_IMPORTED_MODULE_1__[key];
    }
}



/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../../node_modules/webpack/buildin/global.js */ "../../node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./legacy/legacy-glTF2.ts":
/*!********************************!*\
  !*** ./legacy/legacy-glTF2.ts ***!
  \********************************/
/*! exports provided: GLTF2 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* WEBPACK VAR INJECTION */(function(global) {/* harmony import */ var _glTF_2_0_Extensions__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../glTF/2.0/Extensions */ "./glTF/2.0/Extensions/index.ts");
/* harmony import */ var _glTF_2_0_glTFLoaderInterfaces__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTF/2.0/glTFLoaderInterfaces */ "./glTF/2.0/glTFLoaderInterfaces.ts");
/* harmony import */ var _glTF_2_0__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../glTF/2.0 */ "./glTF/2.0/index.ts");
/* harmony reexport (module object) */ __webpack_require__.d(__webpack_exports__, "GLTF2", function() { return _glTF_2_0__WEBPACK_IMPORTED_MODULE_2__; });



/**
 * This is the entry point for the UMD module.
 * The entry point for a future ESM package should be index.ts
 */
var globalObject = (typeof global !== 'undefined') ? global : ((typeof window !== 'undefined') ? window : undefined);
if (typeof globalObject !== "undefined") {
    globalObject.BABYLON = globalObject.BABYLON || {};
    var BABYLON = globalObject.BABYLON;
    BABYLON.GLTF2 = BABYLON.GLTF2 || {};
    BABYLON.GLTF2.Loader = BABYLON.GLTF2.Loader || {};
    BABYLON.GLTF2.Loader.Extensions = BABYLON.GLTF2.Loader.Extensions || {};
    var keys = [];
    for (var key in _glTF_2_0_Extensions__WEBPACK_IMPORTED_MODULE_0__) {
        BABYLON.GLTF2.Loader.Extensions[key] = _glTF_2_0_Extensions__WEBPACK_IMPORTED_MODULE_0__[key];
        keys.push(key);
    }
    for (var key in _glTF_2_0_glTFLoaderInterfaces__WEBPACK_IMPORTED_MODULE_1__) {
        BABYLON.GLTF2.Loader[key] = _glTF_2_0_glTFLoaderInterfaces__WEBPACK_IMPORTED_MODULE_1__[key];
        keys.push(key);
    }
    for (var key in _glTF_2_0__WEBPACK_IMPORTED_MODULE_2__) {
        // Prevent Reassignment.
        if (keys.indexOf(key) > -1) {
            continue;
        }
        BABYLON.GLTF2[key] = _glTF_2_0__WEBPACK_IMPORTED_MODULE_2__[key];
    }
}


/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../../node_modules/webpack/buildin/global.js */ "../../node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./legacy/legacy-glTF2FileLoader.ts":
/*!******************************************!*\
  !*** ./legacy/legacy-glTF2FileLoader.ts ***!
  \******************************************/
/*! exports provided: GLTFLoaderCoordinateSystemMode, GLTFLoaderAnimationStartMode, GLTFLoaderState, GLTFFileLoader, GLTFValidation, GLTF2 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _legacy_glTF__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./legacy-glTF */ "./legacy/legacy-glTF.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFLoaderCoordinateSystemMode", function() { return _legacy_glTF__WEBPACK_IMPORTED_MODULE_0__["GLTFLoaderCoordinateSystemMode"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFLoaderAnimationStartMode", function() { return _legacy_glTF__WEBPACK_IMPORTED_MODULE_0__["GLTFLoaderAnimationStartMode"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFLoaderState", function() { return _legacy_glTF__WEBPACK_IMPORTED_MODULE_0__["GLTFLoaderState"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFFileLoader", function() { return _legacy_glTF__WEBPACK_IMPORTED_MODULE_0__["GLTFFileLoader"]; });

/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTFValidation", function() { return _legacy_glTF__WEBPACK_IMPORTED_MODULE_0__["GLTFValidation"]; });

/* harmony import */ var _legacy_glTF2__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./legacy-glTF2 */ "./legacy/legacy-glTF2.ts");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "GLTF2", function() { return _legacy_glTF2__WEBPACK_IMPORTED_MODULE_1__["GLTF2"]; });





/***/ }),

/***/ "babylonjs/Misc/observable":
/*!****************************************************************************************************!*\
  !*** external {"root":"BABYLON","commonjs":"babylonjs","commonjs2":"babylonjs","amd":"babylonjs"} ***!
  \****************************************************************************************************/
/*! no static exports found */
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE_babylonjs_Misc_observable__;

/***/ })

/******/ });
});
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