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

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/***/ "../node_modules/webpack/buildin/global.js":
/*!*************************************************!*\
  !*** ../node_modules/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 || Function("return this")() || (1, eval)("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;


/***/ }),

/***/ "./legacy/legacy-glTF.ts":
/*!*******************************!*\
  !*** ./legacy/legacy-glTF.ts ***!
  \*******************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {
function __export(m) {
    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
}
Object.defineProperty(exports, "__esModule", { value: true });
var FileLoader = __webpack_require__(/*! ../src/glTF/glTFFileLoader */ "./src/glTF/glTFFileLoader.ts");
/**
 * 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 FileLoader) {
        globalObject.BABYLON[key] = FileLoader[key];
    }
}
__export(__webpack_require__(/*! ../src/glTF/glTFFileLoader */ "./src/glTF/glTFFileLoader.ts"));

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

/***/ }),

/***/ "./legacy/legacy-glTF1.ts":
/*!********************************!*\
  !*** ./legacy/legacy-glTF1.ts ***!
  \********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {
Object.defineProperty(exports, "__esModule", { value: true });
var GLTF1 = __webpack_require__(/*! ../src/glTF/1.0 */ "./src/glTF/1.0/index.ts");
exports.GLTF1 = GLTF1;
/**
 * 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 || {};
    globalObject.BABYLON.GLTF1 = globalObject.BABYLON.GLTF1 || {};
    for (var key in GLTF1) {
        globalObject.BABYLON.GLTF1[key] = GLTF1[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 ***!
  \********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {
Object.defineProperty(exports, "__esModule", { value: true });
var Extensions = __webpack_require__(/*! ../src/glTF/2.0/Extensions */ "./src/glTF/2.0/Extensions/index.ts");
var Interfaces = __webpack_require__(/*! ../src/glTF/2.0/glTFLoaderInterfaces */ "./src/glTF/2.0/glTFLoaderInterfaces.ts");
var GLTF2 = __webpack_require__(/*! ../src/glTF/2.0 */ "./src/glTF/2.0/index.ts");
exports.GLTF2 = GLTF2;
/**
 * 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 Extensions) {
        BABYLON.GLTF2.Loader.Extensions[key] = Extensions[key];
        keys.push(key);
    }
    for (var key in Interfaces) {
        BABYLON.GLTF2.Loader[key] = Interfaces[key];
        keys.push(key);
    }
    for (var key in GLTF2) {
        // Prevent Reassignment.
        if (keys.indexOf(key) > -1) {
            continue;
        }
        BABYLON.GLTF2[key] = GLTF2[key];
    }
}

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

/***/ }),

/***/ "./legacy/legacy-glTFFileLoader.ts":
/*!*****************************************!*\
  !*** ./legacy/legacy-glTFFileLoader.ts ***!
  \*****************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

function __export(m) {
    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
}
Object.defineProperty(exports, "__esModule", { value: true });
__export(__webpack_require__(/*! ./legacy-glTF */ "./legacy/legacy-glTF.ts"));
__export(__webpack_require__(/*! ./legacy-glTF1 */ "./legacy/legacy-glTF1.ts"));
__export(__webpack_require__(/*! ./legacy-glTF2 */ "./legacy/legacy-glTF2.ts"));


/***/ }),

/***/ "./src/glTF/1.0/glTFBinaryExtension.ts":
/*!*********************************************!*\
  !*** ./src/glTF/1.0/glTFBinaryExtension.ts ***!
  \*********************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    }
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
var glTFLoaderExtension_1 = __webpack_require__(/*! ./glTFLoaderExtension */ "./src/glTF/1.0/glTFLoaderExtension.ts");
var glTFLoaderUtils_1 = __webpack_require__(/*! ./glTFLoaderUtils */ "./src/glTF/1.0/glTFLoaderUtils.ts");
var glTFLoaderInterfaces_1 = __webpack_require__(/*! ./glTFLoaderInterfaces */ "./src/glTF/1.0/glTFLoaderInterfaces.ts");
var glTFLoader_1 = __webpack_require__(/*! ./glTFLoader */ "./src/glTF/1.0/glTFLoader.ts");
var BinaryExtensionBufferName = "binary_glTF";
/** @hidden */
var GLTFBinaryExtension = /** @class */ (function (_super) {
    __extends(GLTFBinaryExtension, _super);
    function GLTFBinaryExtension() {
        return _super.call(this, "KHR_binary_glTF") || this;
    }
    GLTFBinaryExtension.prototype.loadRuntimeAsync = function (scene, data, rootUrl, onSuccess, onError) {
        var extensionsUsed = data.json.extensionsUsed;
        if (!extensionsUsed || extensionsUsed.indexOf(this.name) === -1 || !data.bin) {
            return false;
        }
        this._bin = data.bin;
        onSuccess(glTFLoader_1.GLTFLoaderBase.CreateRuntime(data.json, scene, rootUrl));
        return true;
    };
    GLTFBinaryExtension.prototype.loadBufferAsync = function (gltfRuntime, id, onSuccess, onError) {
        if (gltfRuntime.extensionsUsed.indexOf(this.name) === -1) {
            return false;
        }
        if (id !== BinaryExtensionBufferName) {
            return false;
        }
        onSuccess(this._bin);
        return true;
    };
    GLTFBinaryExtension.prototype.loadTextureBufferAsync = function (gltfRuntime, id, onSuccess, onError) {
        var texture = gltfRuntime.textures[id];
        var source = gltfRuntime.images[texture.source];
        if (!source.extensions || !(this.name in source.extensions)) {
            return false;
        }
        var sourceExt = source.extensions[this.name];
        var bufferView = gltfRuntime.bufferViews[sourceExt.bufferView];
        var buffer = glTFLoaderUtils_1.GLTFUtils.GetBufferFromBufferView(gltfRuntime, bufferView, 0, bufferView.byteLength, glTFLoaderInterfaces_1.EComponentType.UNSIGNED_BYTE);
        onSuccess(buffer);
        return true;
    };
    GLTFBinaryExtension.prototype.loadShaderStringAsync = function (gltfRuntime, id, onSuccess, onError) {
        var shader = gltfRuntime.shaders[id];
        if (!shader.extensions || !(this.name in shader.extensions)) {
            return false;
        }
        var binaryExtensionShader = shader.extensions[this.name];
        var bufferView = gltfRuntime.bufferViews[binaryExtensionShader.bufferView];
        var shaderBytes = glTFLoaderUtils_1.GLTFUtils.GetBufferFromBufferView(gltfRuntime, bufferView, 0, bufferView.byteLength, glTFLoaderInterfaces_1.EComponentType.UNSIGNED_BYTE);
        setTimeout(function () {
            var shaderString = glTFLoaderUtils_1.GLTFUtils.DecodeBufferToText(shaderBytes);
            onSuccess(shaderString);
        });
        return true;
    };
    return GLTFBinaryExtension;
}(glTFLoaderExtension_1.GLTFLoaderExtension));
exports.GLTFBinaryExtension = GLTFBinaryExtension;
glTFLoader_1.GLTFLoader.RegisterExtension(new GLTFBinaryExtension());


/***/ }),

/***/ "./src/glTF/1.0/glTFLoader.ts":
/*!************************************!*\
  !*** ./src/glTF/1.0/glTFLoader.ts ***!
  \************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var glTFLoaderInterfaces_1 = __webpack_require__(/*! ./glTFLoaderInterfaces */ "./src/glTF/1.0/glTFLoaderInterfaces.ts");
var glTFLoaderUtils_1 = __webpack_require__(/*! ./glTFLoaderUtils */ "./src/glTF/1.0/glTFLoaderUtils.ts");
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFFileLoader_1 = __webpack_require__(/*! ../glTFFileLoader */ "./src/glTF/glTFFileLoader.ts");
var glTFLoaderExtension_1 = __webpack_require__(/*! ./glTFLoaderExtension */ "./src/glTF/1.0/glTFLoaderExtension.ts");
/**
* Tokenizer. Used for shaders compatibility
* Automatically map world, view, projection, worldViewProjection, attributes and so on
*/
var ETokenType;
(function (ETokenType) {
    ETokenType[ETokenType["IDENTIFIER"] = 1] = "IDENTIFIER";
    ETokenType[ETokenType["UNKNOWN"] = 2] = "UNKNOWN";
    ETokenType[ETokenType["END_OF_INPUT"] = 3] = "END_OF_INPUT";
})(ETokenType || (ETokenType = {}));
var Tokenizer = /** @class */ (function () {
    function Tokenizer(toParse) {
        this._pos = 0;
        this.currentToken = ETokenType.UNKNOWN;
        this.currentIdentifier = "";
        this.currentString = "";
        this.isLetterOrDigitPattern = /^[a-zA-Z0-9]+$/;
        this._toParse = toParse;
        this._maxPos = toParse.length;
    }
    Tokenizer.prototype.getNextToken = function () {
        if (this.isEnd()) {
            return ETokenType.END_OF_INPUT;
        }
        this.currentString = this.read();
        this.currentToken = ETokenType.UNKNOWN;
        if (this.currentString === "_" || this.isLetterOrDigitPattern.test(this.currentString)) {
            this.currentToken = ETokenType.IDENTIFIER;
            this.currentIdentifier = this.currentString;
            while (!this.isEnd() && (this.isLetterOrDigitPattern.test(this.currentString = this.peek()) || this.currentString === "_")) {
                this.currentIdentifier += this.currentString;
                this.forward();
            }
        }
        return this.currentToken;
    };
    Tokenizer.prototype.peek = function () {
        return this._toParse[this._pos];
    };
    Tokenizer.prototype.read = function () {
        return this._toParse[this._pos++];
    };
    Tokenizer.prototype.forward = function () {
        this._pos++;
    };
    Tokenizer.prototype.isEnd = function () {
        return this._pos >= this._maxPos;
    };
    return Tokenizer;
}());
/**
* Values
*/
var glTFTransforms = ["MODEL", "VIEW", "PROJECTION", "MODELVIEW", "MODELVIEWPROJECTION", "JOINTMATRIX"];
var babylonTransforms = ["world", "view", "projection", "worldView", "worldViewProjection", "mBones"];
var glTFAnimationPaths = ["translation", "rotation", "scale"];
var babylonAnimationPaths = ["position", "rotationQuaternion", "scaling"];
/**
* Parse
*/
var parseBuffers = function (parsedBuffers, gltfRuntime) {
    for (var buf in parsedBuffers) {
        var parsedBuffer = parsedBuffers[buf];
        gltfRuntime.buffers[buf] = parsedBuffer;
        gltfRuntime.buffersCount++;
    }
};
var parseShaders = function (parsedShaders, gltfRuntime) {
    for (var sha in parsedShaders) {
        var parsedShader = parsedShaders[sha];
        gltfRuntime.shaders[sha] = parsedShader;
        gltfRuntime.shaderscount++;
    }
};
var parseObject = function (parsedObjects, runtimeProperty, gltfRuntime) {
    for (var object in parsedObjects) {
        var parsedObject = parsedObjects[object];
        gltfRuntime[runtimeProperty][object] = parsedObject;
    }
};
/**
* Utils
*/
var normalizeUVs = function (buffer) {
    if (!buffer) {
        return;
    }
    for (var i = 0; i < buffer.length / 2; i++) {
        buffer[i * 2 + 1] = 1.0 - buffer[i * 2 + 1];
    }
};
var getAttribute = function (attributeParameter) {
    if (attributeParameter.semantic === "NORMAL") {
        return "normal";
    }
    else if (attributeParameter.semantic === "POSITION") {
        return "position";
    }
    else if (attributeParameter.semantic === "JOINT") {
        return "matricesIndices";
    }
    else if (attributeParameter.semantic === "WEIGHT") {
        return "matricesWeights";
    }
    else if (attributeParameter.semantic === "COLOR") {
        return "color";
    }
    else if (attributeParameter.semantic && attributeParameter.semantic.indexOf("TEXCOORD_") !== -1) {
        var channel = Number(attributeParameter.semantic.split("_")[1]);
        return "uv" + (channel === 0 ? "" : channel + 1);
    }
    return null;
};
/**
* Loads and creates animations
*/
var loadAnimations = function (gltfRuntime) {
    for (var anim in gltfRuntime.animations) {
        var animation = gltfRuntime.animations[anim];
        if (!animation.channels || !animation.samplers) {
            continue;
        }
        var lastAnimation = null;
        for (var i = 0; i < animation.channels.length; i++) {
            // Get parameters and load buffers
            var channel = animation.channels[i];
            var sampler = animation.samplers[channel.sampler];
            if (!sampler) {
                continue;
            }
            var inputData = null;
            var outputData = null;
            if (animation.parameters) {
                inputData = animation.parameters[sampler.input];
                outputData = animation.parameters[sampler.output];
            }
            else {
                inputData = sampler.input;
                outputData = sampler.output;
            }
            var bufferInput = glTFLoaderUtils_1.GLTFUtils.GetBufferFromAccessor(gltfRuntime, gltfRuntime.accessors[inputData]);
            var bufferOutput = glTFLoaderUtils_1.GLTFUtils.GetBufferFromAccessor(gltfRuntime, gltfRuntime.accessors[outputData]);
            var targetID = channel.target.id;
            var targetNode = gltfRuntime.scene.getNodeByID(targetID);
            if (targetNode === null) {
                targetNode = gltfRuntime.scene.getNodeByName(targetID);
            }
            if (targetNode === null) {
                babylonjs_1.Tools.Warn("Creating animation named " + anim + ". But cannot find node named " + targetID + " to attach to");
                continue;
            }
            var isBone = targetNode instanceof babylonjs_1.Bone;
            // Get target path (position, rotation or scaling)
            var targetPath = channel.target.path;
            var targetPathIndex = glTFAnimationPaths.indexOf(targetPath);
            if (targetPathIndex !== -1) {
                targetPath = babylonAnimationPaths[targetPathIndex];
            }
            // Determine animation type
            var animationType = babylonjs_1.Animation.ANIMATIONTYPE_MATRIX;
            if (!isBone) {
                if (targetPath === "rotationQuaternion") {
                    animationType = babylonjs_1.Animation.ANIMATIONTYPE_QUATERNION;
                    targetNode.rotationQuaternion = new babylonjs_1.Quaternion();
                }
                else {
                    animationType = babylonjs_1.Animation.ANIMATIONTYPE_VECTOR3;
                }
            }
            // Create animation and key frames
            var babylonAnimation = null;
            var keys = [];
            var arrayOffset = 0;
            var modifyKey = false;
            if (isBone && lastAnimation && lastAnimation.getKeys().length === bufferInput.length) {
                babylonAnimation = lastAnimation;
                modifyKey = true;
            }
            if (!modifyKey) {
                babylonAnimation = new babylonjs_1.Animation(anim, isBone ? "_matrix" : targetPath, 1, animationType, babylonjs_1.Animation.ANIMATIONLOOPMODE_CYCLE);
            }
            // For each frame
            for (var j = 0; j < bufferInput.length; j++) {
                var value = null;
                if (targetPath === "rotationQuaternion") { // VEC4
                    value = babylonjs_1.Quaternion.FromArray([bufferOutput[arrayOffset], bufferOutput[arrayOffset + 1], bufferOutput[arrayOffset + 2], bufferOutput[arrayOffset + 3]]);
                    arrayOffset += 4;
                }
                else { // Position and scaling are VEC3
                    value = babylonjs_1.Vector3.FromArray([bufferOutput[arrayOffset], bufferOutput[arrayOffset + 1], bufferOutput[arrayOffset + 2]]);
                    arrayOffset += 3;
                }
                if (isBone) {
                    var bone = targetNode;
                    var translation = babylonjs_1.Vector3.Zero();
                    var rotationQuaternion = new babylonjs_1.Quaternion();
                    var scaling = babylonjs_1.Vector3.Zero();
                    // Warning on decompose
                    var mat = bone.getBaseMatrix();
                    if (modifyKey && lastAnimation) {
                        mat = lastAnimation.getKeys()[j].value;
                    }
                    mat.decompose(scaling, rotationQuaternion, translation);
                    if (targetPath === "position") {
                        translation = value;
                    }
                    else if (targetPath === "rotationQuaternion") {
                        rotationQuaternion = value;
                    }
                    else {
                        scaling = value;
                    }
                    value = babylonjs_1.Matrix.Compose(scaling, rotationQuaternion, translation);
                }
                if (!modifyKey) {
                    keys.push({
                        frame: bufferInput[j],
                        value: value
                    });
                }
                else if (lastAnimation) {
                    lastAnimation.getKeys()[j].value = value;
                }
            }
            // Finish
            if (!modifyKey && babylonAnimation) {
                babylonAnimation.setKeys(keys);
                targetNode.animations.push(babylonAnimation);
            }
            lastAnimation = babylonAnimation;
            gltfRuntime.scene.stopAnimation(targetNode);
            gltfRuntime.scene.beginAnimation(targetNode, 0, bufferInput[bufferInput.length - 1], true, 1.0);
        }
    }
};
/**
* Returns the bones transformation matrix
*/
var configureBoneTransformation = function (node) {
    var mat = null;
    if (node.translation || node.rotation || node.scale) {
        var scale = babylonjs_1.Vector3.FromArray(node.scale || [1, 1, 1]);
        var rotation = babylonjs_1.Quaternion.FromArray(node.rotation || [0, 0, 0, 1]);
        var position = babylonjs_1.Vector3.FromArray(node.translation || [0, 0, 0]);
        mat = babylonjs_1.Matrix.Compose(scale, rotation, position);
    }
    else {
        mat = babylonjs_1.Matrix.FromArray(node.matrix);
    }
    return mat;
};
/**
* Returns the parent bone
*/
var getParentBone = function (gltfRuntime, skins, jointName, newSkeleton) {
    // Try to find
    for (var i = 0; i < newSkeleton.bones.length; i++) {
        if (newSkeleton.bones[i].name === jointName) {
            return newSkeleton.bones[i];
        }
    }
    // Not found, search in gltf nodes
    var nodes = gltfRuntime.nodes;
    for (var nde in nodes) {
        var node = nodes[nde];
        if (!node.jointName) {
            continue;
        }
        var children = node.children;
        for (var i = 0; i < children.length; i++) {
            var child = gltfRuntime.nodes[children[i]];
            if (!child.jointName) {
                continue;
            }
            if (child.jointName === jointName) {
                var mat = configureBoneTransformation(node);
                var bone = new babylonjs_1.Bone(node.name || "", newSkeleton, getParentBone(gltfRuntime, skins, node.jointName, newSkeleton), mat);
                bone.id = nde;
                return bone;
            }
        }
    }
    return null;
};
/**
* Returns the appropriate root node
*/
var getNodeToRoot = function (nodesToRoot, id) {
    for (var i = 0; i < nodesToRoot.length; i++) {
        var nodeToRoot = nodesToRoot[i];
        for (var j = 0; j < nodeToRoot.node.children.length; j++) {
            var child = nodeToRoot.node.children[j];
            if (child === id) {
                return nodeToRoot.bone;
            }
        }
    }
    return null;
};
/**
* Returns the node with the joint name
*/
var getJointNode = function (gltfRuntime, jointName) {
    var nodes = gltfRuntime.nodes;
    var node = nodes[jointName];
    if (node) {
        return {
            node: node,
            id: jointName
        };
    }
    for (var nde in nodes) {
        node = nodes[nde];
        if (node.jointName === jointName) {
            return {
                node: node,
                id: nde
            };
        }
    }
    return null;
};
/**
* Checks if a nodes is in joints
*/
var nodeIsInJoints = function (skins, id) {
    for (var i = 0; i < skins.jointNames.length; i++) {
        if (skins.jointNames[i] === id) {
            return true;
        }
    }
    return false;
};
/**
* Fills the nodes to root for bones and builds hierarchy
*/
var getNodesToRoot = function (gltfRuntime, newSkeleton, skins, nodesToRoot) {
    // Creates nodes for root
    for (var nde in gltfRuntime.nodes) {
        var node = gltfRuntime.nodes[nde];
        var id = nde;
        if (!node.jointName || nodeIsInJoints(skins, node.jointName)) {
            continue;
        }
        // Create node to root bone
        var mat = configureBoneTransformation(node);
        var bone = new babylonjs_1.Bone(node.name || "", newSkeleton, null, mat);
        bone.id = id;
        nodesToRoot.push({ bone: bone, node: node, id: id });
    }
    // Parenting
    for (var i = 0; i < nodesToRoot.length; i++) {
        var nodeToRoot = nodesToRoot[i];
        var children = nodeToRoot.node.children;
        for (var j = 0; j < children.length; j++) {
            var child = null;
            for (var k = 0; k < nodesToRoot.length; k++) {
                if (nodesToRoot[k].id === children[j]) {
                    child = nodesToRoot[k];
                    break;
                }
            }
            if (child) {
                child.bone._parent = nodeToRoot.bone;
                nodeToRoot.bone.children.push(child.bone);
            }
        }
    }
};
/**
* Imports a skeleton
*/
var importSkeleton = function (gltfRuntime, skins, mesh, newSkeleton, id) {
    if (!newSkeleton) {
        newSkeleton = new babylonjs_1.Skeleton(skins.name || "", "", gltfRuntime.scene);
    }
    if (!skins.babylonSkeleton) {
        return newSkeleton;
    }
    // Find the root bones
    var nodesToRoot = [];
    var nodesToRootToAdd = [];
    getNodesToRoot(gltfRuntime, newSkeleton, skins, nodesToRoot);
    newSkeleton.bones = [];
    // Joints
    for (var i = 0; i < skins.jointNames.length; i++) {
        var jointNode = getJointNode(gltfRuntime, skins.jointNames[i]);
        if (!jointNode) {
            continue;
        }
        var node = jointNode.node;
        if (!node) {
            babylonjs_1.Tools.Warn("Joint named " + skins.jointNames[i] + " does not exist");
            continue;
        }
        var id = jointNode.id;
        // Optimize, if the bone already exists...
        var existingBone = gltfRuntime.scene.getBoneByID(id);
        if (existingBone) {
            newSkeleton.bones.push(existingBone);
            continue;
        }
        // Search for parent bone
        var foundBone = false;
        var parentBone = null;
        for (var j = 0; j < i; j++) {
            var jointNode_1 = getJointNode(gltfRuntime, skins.jointNames[j]);
            if (!jointNode_1) {
                continue;
            }
            var joint = jointNode_1.node;
            if (!joint) {
                babylonjs_1.Tools.Warn("Joint named " + skins.jointNames[j] + " does not exist when looking for parent");
                continue;
            }
            var children = joint.children;
            if (!children) {
                continue;
            }
            foundBone = false;
            for (var k = 0; k < children.length; k++) {
                if (children[k] === id) {
                    parentBone = getParentBone(gltfRuntime, skins, skins.jointNames[j], newSkeleton);
                    foundBone = true;
                    break;
                }
            }
            if (foundBone) {
                break;
            }
        }
        // Create bone
        var mat = configureBoneTransformation(node);
        if (!parentBone && nodesToRoot.length > 0) {
            parentBone = getNodeToRoot(nodesToRoot, id);
            if (parentBone) {
                if (nodesToRootToAdd.indexOf(parentBone) === -1) {
                    nodesToRootToAdd.push(parentBone);
                }
            }
        }
        var bone = new babylonjs_1.Bone(node.jointName || "", newSkeleton, parentBone, mat);
        bone.id = id;
    }
    // Polish
    var bones = newSkeleton.bones;
    newSkeleton.bones = [];
    for (var i = 0; i < skins.jointNames.length; i++) {
        var jointNode = getJointNode(gltfRuntime, skins.jointNames[i]);
        if (!jointNode) {
            continue;
        }
        for (var j = 0; j < bones.length; j++) {
            if (bones[j].id === jointNode.id) {
                newSkeleton.bones.push(bones[j]);
                break;
            }
        }
    }
    newSkeleton.prepare();
    // Finish
    for (var i = 0; i < nodesToRootToAdd.length; i++) {
        newSkeleton.bones.push(nodesToRootToAdd[i]);
    }
    return newSkeleton;
};
/**
* Imports a mesh and its geometries
*/
var importMesh = function (gltfRuntime, node, meshes, id, newMesh) {
    if (!newMesh) {
        newMesh = new babylonjs_1.Mesh(node.name || "", gltfRuntime.scene);
        newMesh.id = id;
    }
    if (!node.babylonNode) {
        return newMesh;
    }
    var subMaterials = [];
    var vertexData = null;
    var verticesStarts = new Array();
    var verticesCounts = new Array();
    var indexStarts = new Array();
    var indexCounts = new Array();
    for (var meshIndex = 0; meshIndex < meshes.length; meshIndex++) {
        var meshID = meshes[meshIndex];
        var mesh = gltfRuntime.meshes[meshID];
        if (!mesh) {
            continue;
        }
        // Positions, normals and UVs
        for (var i = 0; i < mesh.primitives.length; i++) {
            // Temporary vertex data
            var tempVertexData = new babylonjs_1.VertexData();
            var primitive = mesh.primitives[i];
            if (primitive.mode !== 4) {
                // continue;
            }
            var attributes = primitive.attributes;
            var accessor = null;
            var buffer = null;
            // Set positions, normal and uvs
            for (var semantic in attributes) {
                // Link accessor and buffer view
                accessor = gltfRuntime.accessors[attributes[semantic]];
                buffer = glTFLoaderUtils_1.GLTFUtils.GetBufferFromAccessor(gltfRuntime, accessor);
                if (semantic === "NORMAL") {
                    tempVertexData.normals = new Float32Array(buffer.length);
                    tempVertexData.normals.set(buffer);
                }
                else if (semantic === "POSITION") {
                    if (glTFFileLoader_1.GLTFFileLoader.HomogeneousCoordinates) {
                        tempVertexData.positions = new Float32Array(buffer.length - buffer.length / 4);
                        for (var j = 0; j < buffer.length; j += 4) {
                            tempVertexData.positions[j] = buffer[j];
                            tempVertexData.positions[j + 1] = buffer[j + 1];
                            tempVertexData.positions[j + 2] = buffer[j + 2];
                        }
                    }
                    else {
                        tempVertexData.positions = new Float32Array(buffer.length);
                        tempVertexData.positions.set(buffer);
                    }
                    verticesCounts.push(tempVertexData.positions.length);
                }
                else if (semantic.indexOf("TEXCOORD_") !== -1) {
                    var channel = Number(semantic.split("_")[1]);
                    var uvKind = babylonjs_1.VertexBuffer.UVKind + (channel === 0 ? "" : (channel + 1));
                    var uvs = new Float32Array(buffer.length);
                    uvs.set(buffer);
                    normalizeUVs(uvs);
                    tempVertexData.set(uvs, uvKind);
                }
                else if (semantic === "JOINT") {
                    tempVertexData.matricesIndices = new Float32Array(buffer.length);
                    tempVertexData.matricesIndices.set(buffer);
                }
                else if (semantic === "WEIGHT") {
                    tempVertexData.matricesWeights = new Float32Array(buffer.length);
                    tempVertexData.matricesWeights.set(buffer);
                }
                else if (semantic === "COLOR") {
                    tempVertexData.colors = new Float32Array(buffer.length);
                    tempVertexData.colors.set(buffer);
                }
            }
            // Indices
            accessor = gltfRuntime.accessors[primitive.indices];
            if (accessor) {
                buffer = glTFLoaderUtils_1.GLTFUtils.GetBufferFromAccessor(gltfRuntime, accessor);
                tempVertexData.indices = new Int32Array(buffer.length);
                tempVertexData.indices.set(buffer);
                indexCounts.push(tempVertexData.indices.length);
            }
            else {
                // Set indices on the fly
                var indices = [];
                for (var j = 0; j < tempVertexData.positions.length / 3; j++) {
                    indices.push(j);
                }
                tempVertexData.indices = new Int32Array(indices);
                indexCounts.push(tempVertexData.indices.length);
            }
            if (!vertexData) {
                vertexData = tempVertexData;
            }
            else {
                vertexData.merge(tempVertexData);
            }
            // Sub material
            var material_1 = gltfRuntime.scene.getMaterialByID(primitive.material);
            subMaterials.push(material_1 === null ? glTFLoaderUtils_1.GLTFUtils.GetDefaultMaterial(gltfRuntime.scene) : material_1);
            // Update vertices start and index start
            verticesStarts.push(verticesStarts.length === 0 ? 0 : verticesStarts[verticesStarts.length - 1] + verticesCounts[verticesCounts.length - 2]);
            indexStarts.push(indexStarts.length === 0 ? 0 : indexStarts[indexStarts.length - 1] + indexCounts[indexCounts.length - 2]);
        }
    }
    var material;
    if (subMaterials.length > 1) {
        material = new babylonjs_1.MultiMaterial("multimat" + id, gltfRuntime.scene);
        material.subMaterials = subMaterials;
    }
    else {
        material = new babylonjs_1.StandardMaterial("multimat" + id, gltfRuntime.scene);
    }
    if (subMaterials.length === 1) {
        material = subMaterials[0];
    }
    if (!newMesh.material) {
        newMesh.material = material;
    }
    // Apply geometry
    new babylonjs_1.Geometry(id, gltfRuntime.scene, vertexData, false, newMesh);
    newMesh.computeWorldMatrix(true);
    // Apply submeshes
    newMesh.subMeshes = [];
    var index = 0;
    for (var meshIndex = 0; meshIndex < meshes.length; meshIndex++) {
        var meshID = meshes[meshIndex];
        var mesh = gltfRuntime.meshes[meshID];
        if (!mesh) {
            continue;
        }
        for (var i = 0; i < mesh.primitives.length; i++) {
            if (mesh.primitives[i].mode !== 4) {
                //continue;
            }
            babylonjs_1.SubMesh.AddToMesh(index, verticesStarts[index], verticesCounts[index], indexStarts[index], indexCounts[index], newMesh, newMesh, true);
            index++;
        }
    }
    // Finish
    return newMesh;
};
/**
* Configure node transformation from position, rotation and scaling
*/
var configureNode = function (newNode, position, rotation, scaling) {
    if (newNode.position) {
        newNode.position = position;
    }
    if (newNode.rotationQuaternion || newNode.rotation) {
        newNode.rotationQuaternion = rotation;
    }
    if (newNode.scaling) {
        newNode.scaling = scaling;
    }
};
/**
* Configures node from transformation matrix
*/
var configureNodeFromMatrix = function (newNode, node, parent) {
    if (node.matrix) {
        var position = new babylonjs_1.Vector3(0, 0, 0);
        var rotation = new babylonjs_1.Quaternion();
        var scaling = new babylonjs_1.Vector3(0, 0, 0);
        var mat = babylonjs_1.Matrix.FromArray(node.matrix);
        mat.decompose(scaling, rotation, position);
        configureNode(newNode, position, rotation, scaling);
    }
    else if (node.translation && node.rotation && node.scale) {
        configureNode(newNode, babylonjs_1.Vector3.FromArray(node.translation), babylonjs_1.Quaternion.FromArray(node.rotation), babylonjs_1.Vector3.FromArray(node.scale));
    }
    newNode.computeWorldMatrix(true);
};
/**
* Imports a node
*/
var importNode = function (gltfRuntime, node, id, parent) {
    var lastNode = null;
    if (gltfRuntime.importOnlyMeshes && (node.skin || node.meshes)) {
        if (gltfRuntime.importMeshesNames && gltfRuntime.importMeshesNames.length > 0 && gltfRuntime.importMeshesNames.indexOf(node.name || "") === -1) {
            return null;
        }
    }
    // Meshes
    if (node.skin) {
        if (node.meshes) {
            var skin = gltfRuntime.skins[node.skin];
            var newMesh = importMesh(gltfRuntime, node, node.meshes, id, node.babylonNode);
            newMesh.skeleton = gltfRuntime.scene.getLastSkeletonByID(node.skin);
            if (newMesh.skeleton === null) {
                newMesh.skeleton = importSkeleton(gltfRuntime, skin, newMesh, skin.babylonSkeleton, node.skin);
                if (!skin.babylonSkeleton) {
                    skin.babylonSkeleton = newMesh.skeleton;
                }
            }
            lastNode = newMesh;
        }
    }
    else if (node.meshes) {
        /**
        * Improve meshes property
        */
        var newMesh = importMesh(gltfRuntime, node, node.mesh ? [node.mesh] : node.meshes, id, node.babylonNode);
        lastNode = newMesh;
    }
    // Lights
    else if (node.light && !node.babylonNode && !gltfRuntime.importOnlyMeshes) {
        var light = gltfRuntime.lights[node.light];
        if (light) {
            if (light.type === "ambient") {
                var ambienLight = light[light.type];
                var hemiLight = new babylonjs_1.HemisphericLight(node.light, babylonjs_1.Vector3.Zero(), gltfRuntime.scene);
                hemiLight.name = node.name || "";
                if (ambienLight.color) {
                    hemiLight.diffuse = babylonjs_1.Color3.FromArray(ambienLight.color);
                }
                lastNode = hemiLight;
            }
            else if (light.type === "directional") {
                var directionalLight = light[light.type];
                var dirLight = new babylonjs_1.DirectionalLight(node.light, babylonjs_1.Vector3.Zero(), gltfRuntime.scene);
                dirLight.name = node.name || "";
                if (directionalLight.color) {
                    dirLight.diffuse = babylonjs_1.Color3.FromArray(directionalLight.color);
                }
                lastNode = dirLight;
            }
            else if (light.type === "point") {
                var pointLight = light[light.type];
                var ptLight = new babylonjs_1.PointLight(node.light, babylonjs_1.Vector3.Zero(), gltfRuntime.scene);
                ptLight.name = node.name || "";
                if (pointLight.color) {
                    ptLight.diffuse = babylonjs_1.Color3.FromArray(pointLight.color);
                }
                lastNode = ptLight;
            }
            else if (light.type === "spot") {
                var spotLight = light[light.type];
                var spLight = new babylonjs_1.SpotLight(node.light, babylonjs_1.Vector3.Zero(), babylonjs_1.Vector3.Zero(), 0, 0, gltfRuntime.scene);
                spLight.name = node.name || "";
                if (spotLight.color) {
                    spLight.diffuse = babylonjs_1.Color3.FromArray(spotLight.color);
                }
                if (spotLight.fallOfAngle) {
                    spLight.angle = spotLight.fallOfAngle;
                }
                if (spotLight.fallOffExponent) {
                    spLight.exponent = spotLight.fallOffExponent;
                }
                lastNode = spLight;
            }
        }
    }
    // Cameras
    else if (node.camera && !node.babylonNode && !gltfRuntime.importOnlyMeshes) {
        var camera = gltfRuntime.cameras[node.camera];
        if (camera) {
            if (camera.type === "orthographic") {
                var orthoCamera = new babylonjs_1.FreeCamera(node.camera, babylonjs_1.Vector3.Zero(), gltfRuntime.scene, false);
                orthoCamera.name = node.name || "";
                orthoCamera.mode = babylonjs_1.Camera.ORTHOGRAPHIC_CAMERA;
                orthoCamera.attachControl(gltfRuntime.scene.getEngine().getRenderingCanvas());
                lastNode = orthoCamera;
            }
            else if (camera.type === "perspective") {
                var perspectiveCamera = camera[camera.type];
                var persCamera = new babylonjs_1.FreeCamera(node.camera, babylonjs_1.Vector3.Zero(), gltfRuntime.scene, false);
                persCamera.name = node.name || "";
                persCamera.attachControl(gltfRuntime.scene.getEngine().getRenderingCanvas());
                if (!perspectiveCamera.aspectRatio) {
                    perspectiveCamera.aspectRatio = gltfRuntime.scene.getEngine().getRenderWidth() / gltfRuntime.scene.getEngine().getRenderHeight();
                }
                if (perspectiveCamera.znear && perspectiveCamera.zfar) {
                    persCamera.maxZ = perspectiveCamera.zfar;
                    persCamera.minZ = perspectiveCamera.znear;
                }
                lastNode = persCamera;
            }
        }
    }
    // Empty node
    if (!node.jointName) {
        if (node.babylonNode) {
            return node.babylonNode;
        }
        else if (lastNode === null) {
            var dummy = new babylonjs_1.Mesh(node.name || "", gltfRuntime.scene);
            node.babylonNode = dummy;
            lastNode = dummy;
        }
    }
    if (lastNode !== null) {
        if (node.matrix && lastNode instanceof babylonjs_1.Mesh) {
            configureNodeFromMatrix(lastNode, node, parent);
        }
        else {
            var translation = node.translation || [0, 0, 0];
            var rotation = node.rotation || [0, 0, 0, 1];
            var scale = node.scale || [1, 1, 1];
            configureNode(lastNode, babylonjs_1.Vector3.FromArray(translation), babylonjs_1.Quaternion.FromArray(rotation), babylonjs_1.Vector3.FromArray(scale));
        }
        lastNode.updateCache(true);
        node.babylonNode = lastNode;
    }
    return lastNode;
};
/**
* Traverses nodes and creates them
*/
var traverseNodes = function (gltfRuntime, id, parent, meshIncluded) {
    if (meshIncluded === void 0) { meshIncluded = false; }
    var node = gltfRuntime.nodes[id];
    var newNode = null;
    if (gltfRuntime.importOnlyMeshes && !meshIncluded && gltfRuntime.importMeshesNames) {
        if (gltfRuntime.importMeshesNames.indexOf(node.name || "") !== -1 || gltfRuntime.importMeshesNames.length === 0) {
            meshIncluded = true;
        }
        else {
            meshIncluded = false;
        }
    }
    else {
        meshIncluded = true;
    }
    if (!node.jointName && meshIncluded) {
        newNode = importNode(gltfRuntime, node, id, parent);
        if (newNode !== null) {
            newNode.id = id;
            newNode.parent = parent;
        }
    }
    if (node.children) {
        for (var i = 0; i < node.children.length; i++) {
            traverseNodes(gltfRuntime, node.children[i], newNode, meshIncluded);
        }
    }
};
/**
* do stuff after buffers, shaders are loaded (e.g. hook up materials, load animations, etc.)
*/
var postLoad = function (gltfRuntime) {
    // Nodes
    var currentScene = gltfRuntime.currentScene;
    if (currentScene) {
        for (var i = 0; i < currentScene.nodes.length; i++) {
            traverseNodes(gltfRuntime, currentScene.nodes[i], null);
        }
    }
    else {
        for (var thing in gltfRuntime.scenes) {
            currentScene = gltfRuntime.scenes[thing];
            for (var i = 0; i < currentScene.nodes.length; i++) {
                traverseNodes(gltfRuntime, currentScene.nodes[i], null);
            }
        }
    }
    // Set animations
    loadAnimations(gltfRuntime);
    for (var i = 0; i < gltfRuntime.scene.skeletons.length; i++) {
        var skeleton = gltfRuntime.scene.skeletons[i];
        gltfRuntime.scene.beginAnimation(skeleton, 0, Number.MAX_VALUE, true, 1.0);
    }
};
/**
* onBind shaderrs callback to set uniforms and matrices
*/
var onBindShaderMaterial = function (mesh, gltfRuntime, unTreatedUniforms, shaderMaterial, technique, material, onSuccess) {
    var materialValues = material.values || technique.parameters;
    for (var unif in unTreatedUniforms) {
        var uniform = unTreatedUniforms[unif];
        var type = uniform.type;
        if (type === glTFLoaderInterfaces_1.EParameterType.FLOAT_MAT2 || type === glTFLoaderInterfaces_1.EParameterType.FLOAT_MAT3 || type === glTFLoaderInterfaces_1.EParameterType.FLOAT_MAT4) {
            if (uniform.semantic && !uniform.source && !uniform.node) {
                glTFLoaderUtils_1.GLTFUtils.SetMatrix(gltfRuntime.scene, mesh, uniform, unif, shaderMaterial.getEffect());
            }
            else if (uniform.semantic && (uniform.source || uniform.node)) {
                var source = gltfRuntime.scene.getNodeByName(uniform.source || uniform.node || "");
                if (source === null) {
                    source = gltfRuntime.scene.getNodeByID(uniform.source || uniform.node || "");
                }
                if (source === null) {
                    continue;
                }
                glTFLoaderUtils_1.GLTFUtils.SetMatrix(gltfRuntime.scene, source, uniform, unif, shaderMaterial.getEffect());
            }
        }
        else {
            var value = materialValues[technique.uniforms[unif]];
            if (!value) {
                continue;
            }
            if (type === glTFLoaderInterfaces_1.EParameterType.SAMPLER_2D) {
                var texture = gltfRuntime.textures[material.values ? value : uniform.value].babylonTexture;
                if (texture === null || texture === undefined) {
                    continue;
                }
                shaderMaterial.getEffect().setTexture(unif, texture);
            }
            else {
                glTFLoaderUtils_1.GLTFUtils.SetUniform((shaderMaterial.getEffect()), unif, value, type);
            }
        }
    }
    onSuccess(shaderMaterial);
};
/**
* Prepare uniforms to send the only one time
* Loads the appropriate textures
*/
var prepareShaderMaterialUniforms = function (gltfRuntime, shaderMaterial, technique, material, unTreatedUniforms) {
    var materialValues = material.values || technique.parameters;
    var techniqueUniforms = technique.uniforms;
    /**
    * Prepare values here (not matrices)
    */
    for (var unif in unTreatedUniforms) {
        var uniform = unTreatedUniforms[unif];
        var type = uniform.type;
        var value = materialValues[techniqueUniforms[unif]];
        if (value === undefined) {
            // In case the value is the same for all materials
            value = uniform.value;
        }
        if (!value) {
            continue;
        }
        var onLoadTexture = function (uniformName) {
            return function (texture) {
                if (uniform.value && uniformName) {
                    // Static uniform
                    shaderMaterial.setTexture(uniformName, texture);
                    delete unTreatedUniforms[uniformName];
                }
            };
        };
        // Texture (sampler2D)
        if (type === glTFLoaderInterfaces_1.EParameterType.SAMPLER_2D) {
            glTFLoaderExtension_1.GLTFLoaderExtension.LoadTextureAsync(gltfRuntime, material.values ? value : uniform.value, onLoadTexture(unif), function () { return onLoadTexture(null); });
        }
        // Others
        else {
            if (uniform.value && glTFLoaderUtils_1.GLTFUtils.SetUniform(shaderMaterial, unif, material.values ? value : uniform.value, type)) {
                // Static uniform
                delete unTreatedUniforms[unif];
            }
        }
    }
};
/**
* Shader compilation failed
*/
var onShaderCompileError = function (program, shaderMaterial, onError) {
    return function (effect, error) {
        shaderMaterial.dispose(true);
        onError("Cannot compile program named " + program.name + ". Error: " + error + ". Default material will be applied");
    };
};
/**
* Shader compilation success
*/
var onShaderCompileSuccess = function (gltfRuntime, shaderMaterial, technique, material, unTreatedUniforms, onSuccess) {
    return function (_) {
        prepareShaderMaterialUniforms(gltfRuntime, shaderMaterial, technique, material, unTreatedUniforms);
        shaderMaterial.onBind = function (mesh) {
            onBindShaderMaterial(mesh, gltfRuntime, unTreatedUniforms, shaderMaterial, technique, material, onSuccess);
        };
    };
};
/**
* Returns the appropriate uniform if already handled by babylon
*/
var parseShaderUniforms = function (tokenizer, technique, unTreatedUniforms) {
    for (var unif in technique.uniforms) {
        var uniform = technique.uniforms[unif];
        var uniformParameter = technique.parameters[uniform];
        if (tokenizer.currentIdentifier === unif) {
            if (uniformParameter.semantic && !uniformParameter.source && !uniformParameter.node) {
                var transformIndex = glTFTransforms.indexOf(uniformParameter.semantic);
                if (transformIndex !== -1) {
                    delete unTreatedUniforms[unif];
                    return babylonTransforms[transformIndex];
                }
            }
        }
    }
    return tokenizer.currentIdentifier;
};
/**
* All shaders loaded. Create materials one by one
*/
var importMaterials = function (gltfRuntime) {
    // Create materials
    for (var mat in gltfRuntime.materials) {
        glTFLoaderExtension_1.GLTFLoaderExtension.LoadMaterialAsync(gltfRuntime, mat, function (material) { }, function () { });
    }
};
/**
* Implementation of the base glTF spec
* @hidden
*/
var GLTFLoaderBase = /** @class */ (function () {
    function GLTFLoaderBase() {
    }
    GLTFLoaderBase.CreateRuntime = function (parsedData, scene, rootUrl) {
        var gltfRuntime = {
            extensions: {},
            accessors: {},
            buffers: {},
            bufferViews: {},
            meshes: {},
            lights: {},
            cameras: {},
            nodes: {},
            images: {},
            textures: {},
            shaders: {},
            programs: {},
            samplers: {},
            techniques: {},
            materials: {},
            animations: {},
            skins: {},
            extensionsUsed: [],
            scenes: {},
            buffersCount: 0,
            shaderscount: 0,
            scene: scene,
            rootUrl: rootUrl,
            loadedBufferCount: 0,
            loadedBufferViews: {},
            loadedShaderCount: 0,
            importOnlyMeshes: false,
            dummyNodes: []
        };
        // Parse
        if (parsedData.extensions) {
            parseObject(parsedData.extensions, "extensions", gltfRuntime);
        }
        if (parsedData.extensionsUsed) {
            parseObject(parsedData.extensionsUsed, "extensionsUsed", gltfRuntime);
        }
        if (parsedData.buffers) {
            parseBuffers(parsedData.buffers, gltfRuntime);
        }
        if (parsedData.bufferViews) {
            parseObject(parsedData.bufferViews, "bufferViews", gltfRuntime);
        }
        if (parsedData.accessors) {
            parseObject(parsedData.accessors, "accessors", gltfRuntime);
        }
        if (parsedData.meshes) {
            parseObject(parsedData.meshes, "meshes", gltfRuntime);
        }
        if (parsedData.lights) {
            parseObject(parsedData.lights, "lights", gltfRuntime);
        }
        if (parsedData.cameras) {
            parseObject(parsedData.cameras, "cameras", gltfRuntime);
        }
        if (parsedData.nodes) {
            parseObject(parsedData.nodes, "nodes", gltfRuntime);
        }
        if (parsedData.images) {
            parseObject(parsedData.images, "images", gltfRuntime);
        }
        if (parsedData.textures) {
            parseObject(parsedData.textures, "textures", gltfRuntime);
        }
        if (parsedData.shaders) {
            parseShaders(parsedData.shaders, gltfRuntime);
        }
        if (parsedData.programs) {
            parseObject(parsedData.programs, "programs", gltfRuntime);
        }
        if (parsedData.samplers) {
            parseObject(parsedData.samplers, "samplers", gltfRuntime);
        }
        if (parsedData.techniques) {
            parseObject(parsedData.techniques, "techniques", gltfRuntime);
        }
        if (parsedData.materials) {
            parseObject(parsedData.materials, "materials", gltfRuntime);
        }
        if (parsedData.animations) {
            parseObject(parsedData.animations, "animations", gltfRuntime);
        }
        if (parsedData.skins) {
            parseObject(parsedData.skins, "skins", gltfRuntime);
        }
        if (parsedData.scenes) {
            gltfRuntime.scenes = parsedData.scenes;
        }
        if (parsedData.scene && parsedData.scenes) {
            gltfRuntime.currentScene = parsedData.scenes[parsedData.scene];
        }
        return gltfRuntime;
    };
    GLTFLoaderBase.LoadBufferAsync = function (gltfRuntime, id, onSuccess, onError, onProgress) {
        var buffer = gltfRuntime.buffers[id];
        if (babylonjs_1.Tools.IsBase64(buffer.uri)) {
            setTimeout(function () { return onSuccess(new Uint8Array(babylonjs_1.Tools.DecodeBase64(buffer.uri))); });
        }
        else {
            babylonjs_1.Tools.LoadFile(gltfRuntime.rootUrl + buffer.uri, function (data) { return onSuccess(new Uint8Array(data)); }, onProgress, undefined, true, function (request) {
                if (request) {
                    onError(request.status + " " + request.statusText);
                }
            });
        }
    };
    GLTFLoaderBase.LoadTextureBufferAsync = function (gltfRuntime, id, onSuccess, onError) {
        var texture = gltfRuntime.textures[id];
        if (!texture || !texture.source) {
            onError("");
            return;
        }
        if (texture.babylonTexture) {
            onSuccess(null);
            return;
        }
        var source = gltfRuntime.images[texture.source];
        if (babylonjs_1.Tools.IsBase64(source.uri)) {
            setTimeout(function () { return onSuccess(new Uint8Array(babylonjs_1.Tools.DecodeBase64(source.uri))); });
        }
        else {
            babylonjs_1.Tools.LoadFile(gltfRuntime.rootUrl + source.uri, function (data) { return onSuccess(new Uint8Array(data)); }, undefined, undefined, true, function (request) {
                if (request) {
                    onError(request.status + " " + request.statusText);
                }
            });
        }
    };
    GLTFLoaderBase.CreateTextureAsync = function (gltfRuntime, id, buffer, onSuccess, onError) {
        var texture = gltfRuntime.textures[id];
        if (texture.babylonTexture) {
            onSuccess(texture.babylonTexture);
            return;
        }
        var sampler = gltfRuntime.samplers[texture.sampler];
        var createMipMaps = (sampler.minFilter === glTFLoaderInterfaces_1.ETextureFilterType.NEAREST_MIPMAP_NEAREST) ||
            (sampler.minFilter === glTFLoaderInterfaces_1.ETextureFilterType.NEAREST_MIPMAP_LINEAR) ||
            (sampler.minFilter === glTFLoaderInterfaces_1.ETextureFilterType.LINEAR_MIPMAP_NEAREST) ||
            (sampler.minFilter === glTFLoaderInterfaces_1.ETextureFilterType.LINEAR_MIPMAP_LINEAR);
        var samplingMode = babylonjs_1.Texture.BILINEAR_SAMPLINGMODE;
        var blob = buffer == null ? new Blob() : new Blob([buffer]);
        var blobURL = URL.createObjectURL(blob);
        var revokeBlobURL = function () { return URL.revokeObjectURL(blobURL); };
        var newTexture = new babylonjs_1.Texture(blobURL, gltfRuntime.scene, !createMipMaps, true, samplingMode, revokeBlobURL, revokeBlobURL);
        if (sampler.wrapS !== undefined) {
            newTexture.wrapU = glTFLoaderUtils_1.GLTFUtils.GetWrapMode(sampler.wrapS);
        }
        if (sampler.wrapT !== undefined) {
            newTexture.wrapV = glTFLoaderUtils_1.GLTFUtils.GetWrapMode(sampler.wrapT);
        }
        newTexture.name = id;
        texture.babylonTexture = newTexture;
        onSuccess(newTexture);
    };
    GLTFLoaderBase.LoadShaderStringAsync = function (gltfRuntime, id, onSuccess, onError) {
        var shader = gltfRuntime.shaders[id];
        if (babylonjs_1.Tools.IsBase64(shader.uri)) {
            var shaderString = atob(shader.uri.split(",")[1]);
            if (onSuccess) {
                onSuccess(shaderString);
            }
        }
        else {
            babylonjs_1.Tools.LoadFile(gltfRuntime.rootUrl + shader.uri, onSuccess, undefined, undefined, false, function (request) {
                if (request && onError) {
                    onError(request.status + " " + request.statusText);
                }
            });
        }
    };
    GLTFLoaderBase.LoadMaterialAsync = function (gltfRuntime, id, onSuccess, onError) {
        var material = gltfRuntime.materials[id];
        if (!material.technique) {
            if (onError) {
                onError("No technique found.");
            }
            return;
        }
        var technique = gltfRuntime.techniques[material.technique];
        if (!technique) {
            var defaultMaterial = new babylonjs_1.StandardMaterial(id, gltfRuntime.scene);
            defaultMaterial.diffuseColor = new babylonjs_1.Color3(0.5, 0.5, 0.5);
            defaultMaterial.sideOrientation = babylonjs_1.Material.CounterClockWiseSideOrientation;
            onSuccess(defaultMaterial);
            return;
        }
        var program = gltfRuntime.programs[technique.program];
        var states = technique.states;
        var vertexShader = babylonjs_1.Effect.ShadersStore[program.vertexShader + "VertexShader"];
        var pixelShader = babylonjs_1.Effect.ShadersStore[program.fragmentShader + "PixelShader"];
        var newVertexShader = "";
        var newPixelShader = "";
        var vertexTokenizer = new Tokenizer(vertexShader);
        var pixelTokenizer = new Tokenizer(pixelShader);
        var unTreatedUniforms = {};
        var uniforms = [];
        var attributes = [];
        var samplers = [];
        // Fill uniform, sampler2D and attributes
        for (var unif in technique.uniforms) {
            var uniform = technique.uniforms[unif];
            var uniformParameter = technique.parameters[uniform];
            unTreatedUniforms[unif] = uniformParameter;
            if (uniformParameter.semantic && !uniformParameter.node && !uniformParameter.source) {
                var transformIndex = glTFTransforms.indexOf(uniformParameter.semantic);
                if (transformIndex !== -1) {
                    uniforms.push(babylonTransforms[transformIndex]);
                    delete unTreatedUniforms[unif];
                }
                else {
                    uniforms.push(unif);
                }
            }
            else if (uniformParameter.type === glTFLoaderInterfaces_1.EParameterType.SAMPLER_2D) {
                samplers.push(unif);
            }
            else {
                uniforms.push(unif);
            }
        }
        for (var attr in technique.attributes) {
            var attribute = technique.attributes[attr];
            var attributeParameter = technique.parameters[attribute];
            if (attributeParameter.semantic) {
                var name_1 = getAttribute(attributeParameter);
                if (name_1) {
                    attributes.push(name_1);
                }
            }
        }
        // Configure vertex shader
        while (!vertexTokenizer.isEnd() && vertexTokenizer.getNextToken()) {
            var tokenType = vertexTokenizer.currentToken;
            if (tokenType !== ETokenType.IDENTIFIER) {
                newVertexShader += vertexTokenizer.currentString;
                continue;
            }
            var foundAttribute = false;
            for (var attr in technique.attributes) {
                var attribute = technique.attributes[attr];
                var attributeParameter = technique.parameters[attribute];
                if (vertexTokenizer.currentIdentifier === attr && attributeParameter.semantic) {
                    newVertexShader += getAttribute(attributeParameter);
                    foundAttribute = true;
                    break;
                }
            }
            if (foundAttribute) {
                continue;
            }
            newVertexShader += parseShaderUniforms(vertexTokenizer, technique, unTreatedUniforms);
        }
        // Configure pixel shader
        while (!pixelTokenizer.isEnd() && pixelTokenizer.getNextToken()) {
            var tokenType = pixelTokenizer.currentToken;
            if (tokenType !== ETokenType.IDENTIFIER) {
                newPixelShader += pixelTokenizer.currentString;
                continue;
            }
            newPixelShader += parseShaderUniforms(pixelTokenizer, technique, unTreatedUniforms);
        }
        // Create shader material
        var shaderPath = {
            vertex: program.vertexShader + id,
            fragment: program.fragmentShader + id
        };
        var options = {
            attributes: attributes,
            uniforms: uniforms,
            samplers: samplers,
            needAlphaBlending: states && states.enable && states.enable.indexOf(3042) !== -1
        };
        babylonjs_1.Effect.ShadersStore[program.vertexShader + id + "VertexShader"] = newVertexShader;
        babylonjs_1.Effect.ShadersStore[program.fragmentShader + id + "PixelShader"] = newPixelShader;
        var shaderMaterial = new babylonjs_1.ShaderMaterial(id, gltfRuntime.scene, shaderPath, options);
        shaderMaterial.onError = onShaderCompileError(program, shaderMaterial, onError);
        shaderMaterial.onCompiled = onShaderCompileSuccess(gltfRuntime, shaderMaterial, technique, material, unTreatedUniforms, onSuccess);
        shaderMaterial.sideOrientation = babylonjs_1.Material.CounterClockWiseSideOrientation;
        if (states && states.functions) {
            var functions = states.functions;
            if (functions.cullFace && functions.cullFace[0] !== glTFLoaderInterfaces_1.ECullingType.BACK) {
                shaderMaterial.backFaceCulling = false;
            }
            var blendFunc = functions.blendFuncSeparate;
            if (blendFunc) {
                if (blendFunc[0] === glTFLoaderInterfaces_1.EBlendingFunction.SRC_ALPHA && blendFunc[1] === glTFLoaderInterfaces_1.EBlendingFunction.ONE_MINUS_SRC_ALPHA && blendFunc[2] === glTFLoaderInterfaces_1.EBlendingFunction.ONE && blendFunc[3] === glTFLoaderInterfaces_1.EBlendingFunction.ONE) {
                    shaderMaterial.alphaMode = babylonjs_1.Engine.ALPHA_COMBINE;
                }
                else if (blendFunc[0] === glTFLoaderInterfaces_1.EBlendingFunction.ONE && blendFunc[1] === glTFLoaderInterfaces_1.EBlendingFunction.ONE && blendFunc[2] === glTFLoaderInterfaces_1.EBlendingFunction.ZERO && blendFunc[3] === glTFLoaderInterfaces_1.EBlendingFunction.ONE) {
                    shaderMaterial.alphaMode = babylonjs_1.Engine.ALPHA_ONEONE;
                }
                else if (blendFunc[0] === glTFLoaderInterfaces_1.EBlendingFunction.SRC_ALPHA && blendFunc[1] === glTFLoaderInterfaces_1.EBlendingFunction.ONE && blendFunc[2] === glTFLoaderInterfaces_1.EBlendingFunction.ZERO && blendFunc[3] === glTFLoaderInterfaces_1.EBlendingFunction.ONE) {
                    shaderMaterial.alphaMode = babylonjs_1.Engine.ALPHA_ADD;
                }
                else if (blendFunc[0] === glTFLoaderInterfaces_1.EBlendingFunction.ZERO && blendFunc[1] === glTFLoaderInterfaces_1.EBlendingFunction.ONE_MINUS_SRC_COLOR && blendFunc[2] === glTFLoaderInterfaces_1.EBlendingFunction.ONE && blendFunc[3] === glTFLoaderInterfaces_1.EBlendingFunction.ONE) {
                    shaderMaterial.alphaMode = babylonjs_1.Engine.ALPHA_SUBTRACT;
                }
                else if (blendFunc[0] === glTFLoaderInterfaces_1.EBlendingFunction.DST_COLOR && blendFunc[1] === glTFLoaderInterfaces_1.EBlendingFunction.ZERO && blendFunc[2] === glTFLoaderInterfaces_1.EBlendingFunction.ONE && blendFunc[3] === glTFLoaderInterfaces_1.EBlendingFunction.ONE) {
                    shaderMaterial.alphaMode = babylonjs_1.Engine.ALPHA_MULTIPLY;
                }
                else if (blendFunc[0] === glTFLoaderInterfaces_1.EBlendingFunction.SRC_ALPHA && blendFunc[1] === glTFLoaderInterfaces_1.EBlendingFunction.ONE_MINUS_SRC_COLOR && blendFunc[2] === glTFLoaderInterfaces_1.EBlendingFunction.ONE && blendFunc[3] === glTFLoaderInterfaces_1.EBlendingFunction.ONE) {
                    shaderMaterial.alphaMode = babylonjs_1.Engine.ALPHA_MAXIMIZED;
                }
            }
        }
    };
    return GLTFLoaderBase;
}());
exports.GLTFLoaderBase = GLTFLoaderBase;
/**
* glTF V1 Loader
* @hidden
*/
var GLTFLoader = /** @class */ (function () {
    function GLTFLoader() {
        this.state = null;
    }
    GLTFLoader.RegisterExtension = function (extension) {
        if (GLTFLoader.Extensions[extension.name]) {
            babylonjs_1.Tools.Error("Tool with the same name \"" + extension.name + "\" already exists");
            return;
        }
        GLTFLoader.Extensions[extension.name] = extension;
    };
    GLTFLoader.prototype.dispose = function () {
        // do nothing
    };
    GLTFLoader.prototype._importMeshAsync = function (meshesNames, scene, data, rootUrl, onSuccess, onProgress, onError) {
        var _this = this;
        scene.useRightHandedSystem = true;
        glTFLoaderExtension_1.GLTFLoaderExtension.LoadRuntimeAsync(scene, data, rootUrl, function (gltfRuntime) {
            gltfRuntime.importOnlyMeshes = true;
            if (meshesNames === "") {
                gltfRuntime.importMeshesNames = [];
            }
            else if (typeof meshesNames === "string") {
                gltfRuntime.importMeshesNames = [meshesNames];
            }
            else if (meshesNames && !(meshesNames instanceof Array)) {
                gltfRuntime.importMeshesNames = [meshesNames];
            }
            else {
                gltfRuntime.importMeshesNames = [];
                babylonjs_1.Tools.Warn("Argument meshesNames must be of type string or string[]");
            }
            // Create nodes
            _this._createNodes(gltfRuntime);
            var meshes = new Array();
            var skeletons = new Array();
            // Fill arrays of meshes and skeletons
            for (var nde in gltfRuntime.nodes) {
                var node = gltfRuntime.nodes[nde];
                if (node.babylonNode instanceof babylonjs_1.AbstractMesh) {
                    meshes.push(node.babylonNode);
                }
            }
            for (var skl in gltfRuntime.skins) {
                var skin = gltfRuntime.skins[skl];
                if (skin.babylonSkeleton instanceof babylonjs_1.Skeleton) {
                    skeletons.push(skin.babylonSkeleton);
                }
            }
            // Load buffers, shaders, materials, etc.
            _this._loadBuffersAsync(gltfRuntime, function () {
                _this._loadShadersAsync(gltfRuntime, function () {
                    importMaterials(gltfRuntime);
                    postLoad(gltfRuntime);
                    if (!glTFFileLoader_1.GLTFFileLoader.IncrementalLoading && onSuccess) {
                        onSuccess(meshes, skeletons);
                    }
                });
            }, onProgress);
            if (glTFFileLoader_1.GLTFFileLoader.IncrementalLoading && onSuccess) {
                onSuccess(meshes, skeletons);
            }
        }, onError);
        return true;
    };
    /**
    * Imports one or more meshes from a loaded gltf file and adds them to the scene
    * @param meshesNames a string or array of strings of the mesh names that should be loaded from the file
    * @param scene the scene the meshes should be added to
    * @param data gltf data containing information of the meshes in a loaded file
    * @param rootUrl root url to load from
    * @param onProgress event that fires when loading progress has occured
    * @returns a promise containg the loaded meshes, particles, skeletons and animations
    */
    GLTFLoader.prototype.importMeshAsync = function (meshesNames, scene, data, rootUrl, onProgress) {
        var _this = this;
        return new Promise(function (resolve, reject) {
            _this._importMeshAsync(meshesNames, scene, data, rootUrl, function (meshes, skeletons) {
                resolve({
                    meshes: meshes,
                    particleSystems: [],
                    skeletons: skeletons,
                    animationGroups: []
                });
            }, onProgress, function (message) {
                reject(new Error(message));
            });
        });
    };
    GLTFLoader.prototype._loadAsync = function (scene, data, rootUrl, onSuccess, onProgress, onError) {
        var _this = this;
        scene.useRightHandedSystem = true;
        glTFLoaderExtension_1.GLTFLoaderExtension.LoadRuntimeAsync(scene, data, rootUrl, function (gltfRuntime) {
            // Load runtime extensios
            glTFLoaderExtension_1.GLTFLoaderExtension.LoadRuntimeExtensionsAsync(gltfRuntime, function () {
                // Create nodes
                _this._createNodes(gltfRuntime);
                // Load buffers, shaders, materials, etc.
                _this._loadBuffersAsync(gltfRuntime, function () {
                    _this._loadShadersAsync(gltfRuntime, function () {
                        importMaterials(gltfRuntime);
                        postLoad(gltfRuntime);
                        if (!glTFFileLoader_1.GLTFFileLoader.IncrementalLoading) {
                            onSuccess();
                        }
                    });
                });
                if (glTFFileLoader_1.GLTFFileLoader.IncrementalLoading) {
                    onSuccess();
                }
            }, onError);
        }, onError);
    };
    /**
    * Imports all objects from a loaded gltf file and adds them to the scene
    * @param scene the scene the objects should be added to
    * @param data gltf data containing information of the meshes in a loaded file
    * @param rootUrl root url to load from
    * @param onProgress event that fires when loading progress has occured
    * @returns a promise which completes when objects have been loaded to the scene
    */
    GLTFLoader.prototype.loadAsync = function (scene, data, rootUrl, onProgress) {
        var _this = this;
        return new Promise(function (resolve, reject) {
            _this._loadAsync(scene, data, rootUrl, function () {
                resolve();
            }, onProgress, function (message) {
                reject(new Error(message));
            });
        });
    };
    GLTFLoader.prototype._loadShadersAsync = function (gltfRuntime, onload) {
        var hasShaders = false;
        var processShader = function (sha, shader) {
            glTFLoaderExtension_1.GLTFLoaderExtension.LoadShaderStringAsync(gltfRuntime, sha, function (shaderString) {
                if (shaderString instanceof ArrayBuffer) {
                    return;
                }
                gltfRuntime.loadedShaderCount++;
                if (shaderString) {
                    babylonjs_1.Effect.ShadersStore[sha + (shader.type === glTFLoaderInterfaces_1.EShaderType.VERTEX ? "VertexShader" : "PixelShader")] = shaderString;
                }
                if (gltfRuntime.loadedShaderCount === gltfRuntime.shaderscount) {
                    onload();
                }
            }, function () {
                babylonjs_1.Tools.Error("Error when loading shader program named " + sha + " located at " + shader.uri);
            });
        };
        for (var sha in gltfRuntime.shaders) {
            hasShaders = true;
            var shader = gltfRuntime.shaders[sha];
            if (shader) {
                processShader.bind(this, sha, shader)();
            }
            else {
                babylonjs_1.Tools.Error("No shader named: " + sha);
            }
        }
        if (!hasShaders) {
            onload();
        }
    };
    GLTFLoader.prototype._loadBuffersAsync = function (gltfRuntime, onLoad, onProgress) {
        var hasBuffers = false;
        var processBuffer = function (buf, buffer) {
            glTFLoaderExtension_1.GLTFLoaderExtension.LoadBufferAsync(gltfRuntime, buf, function (bufferView) {
                gltfRuntime.loadedBufferCount++;
                if (bufferView) {
                    if (bufferView.byteLength != gltfRuntime.buffers[buf].byteLength) {
                        babylonjs_1.Tools.Error("Buffer named " + buf + " is length " + bufferView.byteLength + ". Expected: " + buffer.byteLength); // Improve error message
                    }
                    gltfRuntime.loadedBufferViews[buf] = bufferView;
                }
                if (gltfRuntime.loadedBufferCount === gltfRuntime.buffersCount) {
                    onLoad();
                }
            }, function () {
                babylonjs_1.Tools.Error("Error when loading buffer named " + buf + " located at " + buffer.uri);
            });
        };
        for (var buf in gltfRuntime.buffers) {
            hasBuffers = true;
            var buffer = gltfRuntime.buffers[buf];
            if (buffer) {
                processBuffer.bind(this, buf, buffer)();
            }
            else {
                babylonjs_1.Tools.Error("No buffer named: " + buf);
            }
        }
        if (!hasBuffers) {
            onLoad();
        }
    };
    GLTFLoader.prototype._createNodes = function (gltfRuntime) {
        var currentScene = gltfRuntime.currentScene;
        if (currentScene) {
            // Only one scene even if multiple scenes are defined
            for (var i = 0; i < currentScene.nodes.length; i++) {
                traverseNodes(gltfRuntime, currentScene.nodes[i], null);
            }
        }
        else {
            // Load all scenes
            for (var thing in gltfRuntime.scenes) {
                currentScene = gltfRuntime.scenes[thing];
                for (var i = 0; i < currentScene.nodes.length; i++) {
                    traverseNodes(gltfRuntime, currentScene.nodes[i], null);
                }
            }
        }
    };
    GLTFLoader.Extensions = {};
    return GLTFLoader;
}());
exports.GLTFLoader = GLTFLoader;
glTFFileLoader_1.GLTFFileLoader._CreateGLTF1Loader = function () { return new GLTFLoader(); };


/***/ }),

/***/ "./src/glTF/1.0/glTFLoaderExtension.ts":
/*!*********************************************!*\
  !*** ./src/glTF/1.0/glTFLoaderExtension.ts ***!
  \*********************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var glTFLoader_1 = __webpack_require__(/*! ./glTFLoader */ "./src/glTF/1.0/glTFLoader.ts");
/** @hidden */
var GLTFLoaderExtension = /** @class */ (function () {
    function GLTFLoaderExtension(name) {
        this._name = name;
    }
    Object.defineProperty(GLTFLoaderExtension.prototype, "name", {
        get: function () {
            return this._name;
        },
        enumerable: true,
        configurable: true
    });
    /**
    * Defines an override for loading the runtime
    * Return true to stop further extensions from loading the runtime
    */
    GLTFLoaderExtension.prototype.loadRuntimeAsync = function (scene, data, rootUrl, onSuccess, onError) {
        return false;
    };
    /**
     * Defines an onverride for creating gltf runtime
     * Return true to stop further extensions from creating the runtime
     */
    GLTFLoaderExtension.prototype.loadRuntimeExtensionsAsync = function (gltfRuntime, onSuccess, onError) {
        return false;
    };
    /**
    * Defines an override for loading buffers
    * Return true to stop further extensions from loading this buffer
    */
    GLTFLoaderExtension.prototype.loadBufferAsync = function (gltfRuntime, id, onSuccess, onError, onProgress) {
        return false;
    };
    /**
    * Defines an override for loading texture buffers
    * Return true to stop further extensions from loading this texture data
    */
    GLTFLoaderExtension.prototype.loadTextureBufferAsync = function (gltfRuntime, id, onSuccess, onError) {
        return false;
    };
    /**
    * Defines an override for creating textures
    * Return true to stop further extensions from loading this texture
    */
    GLTFLoaderExtension.prototype.createTextureAsync = function (gltfRuntime, id, buffer, onSuccess, onError) {
        return false;
    };
    /**
    * Defines an override for loading shader strings
    * Return true to stop further extensions from loading this shader data
    */
    GLTFLoaderExtension.prototype.loadShaderStringAsync = function (gltfRuntime, id, onSuccess, onError) {
        return false;
    };
    /**
    * Defines an override for loading materials
    * Return true to stop further extensions from loading this material
    */
    GLTFLoaderExtension.prototype.loadMaterialAsync = function (gltfRuntime, id, onSuccess, onError) {
        return false;
    };
    // ---------
    // Utilities
    // ---------
    GLTFLoaderExtension.LoadRuntimeAsync = function (scene, data, rootUrl, onSuccess, onError) {
        GLTFLoaderExtension.ApplyExtensions(function (loaderExtension) {
            return loaderExtension.loadRuntimeAsync(scene, data, rootUrl, onSuccess, onError);
        }, function () {
            setTimeout(function () {
                if (!onSuccess) {
                    return;
                }
                onSuccess(glTFLoader_1.GLTFLoaderBase.CreateRuntime(data.json, scene, rootUrl));
            });
        });
    };
    GLTFLoaderExtension.LoadRuntimeExtensionsAsync = function (gltfRuntime, onSuccess, onError) {
        GLTFLoaderExtension.ApplyExtensions(function (loaderExtension) {
            return loaderExtension.loadRuntimeExtensionsAsync(gltfRuntime, onSuccess, onError);
        }, function () {
            setTimeout(function () {
                onSuccess();
            });
        });
    };
    GLTFLoaderExtension.LoadBufferAsync = function (gltfRuntime, id, onSuccess, onError, onProgress) {
        GLTFLoaderExtension.ApplyExtensions(function (loaderExtension) {
            return loaderExtension.loadBufferAsync(gltfRuntime, id, onSuccess, onError, onProgress);
        }, function () {
            glTFLoader_1.GLTFLoaderBase.LoadBufferAsync(gltfRuntime, id, onSuccess, onError, onProgress);
        });
    };
    GLTFLoaderExtension.LoadTextureAsync = function (gltfRuntime, id, onSuccess, onError) {
        GLTFLoaderExtension.LoadTextureBufferAsync(gltfRuntime, id, function (buffer) {
            if (buffer) {
                GLTFLoaderExtension.CreateTextureAsync(gltfRuntime, id, buffer, onSuccess, onError);
            }
        }, onError);
    };
    GLTFLoaderExtension.LoadShaderStringAsync = function (gltfRuntime, id, onSuccess, onError) {
        GLTFLoaderExtension.ApplyExtensions(function (loaderExtension) {
            return loaderExtension.loadShaderStringAsync(gltfRuntime, id, onSuccess, onError);
        }, function () {
            glTFLoader_1.GLTFLoaderBase.LoadShaderStringAsync(gltfRuntime, id, onSuccess, onError);
        });
    };
    GLTFLoaderExtension.LoadMaterialAsync = function (gltfRuntime, id, onSuccess, onError) {
        GLTFLoaderExtension.ApplyExtensions(function (loaderExtension) {
            return loaderExtension.loadMaterialAsync(gltfRuntime, id, onSuccess, onError);
        }, function () {
            glTFLoader_1.GLTFLoaderBase.LoadMaterialAsync(gltfRuntime, id, onSuccess, onError);
        });
    };
    GLTFLoaderExtension.LoadTextureBufferAsync = function (gltfRuntime, id, onSuccess, onError) {
        GLTFLoaderExtension.ApplyExtensions(function (loaderExtension) {
            return loaderExtension.loadTextureBufferAsync(gltfRuntime, id, onSuccess, onError);
        }, function () {
            glTFLoader_1.GLTFLoaderBase.LoadTextureBufferAsync(gltfRuntime, id, onSuccess, onError);
        });
    };
    GLTFLoaderExtension.CreateTextureAsync = function (gltfRuntime, id, buffer, onSuccess, onError) {
        GLTFLoaderExtension.ApplyExtensions(function (loaderExtension) {
            return loaderExtension.createTextureAsync(gltfRuntime, id, buffer, onSuccess, onError);
        }, function () {
            glTFLoader_1.GLTFLoaderBase.CreateTextureAsync(gltfRuntime, id, buffer, onSuccess, onError);
        });
    };
    GLTFLoaderExtension.ApplyExtensions = function (func, defaultFunc) {
        for (var extensionName in glTFLoader_1.GLTFLoader.Extensions) {
            var loaderExtension = glTFLoader_1.GLTFLoader.Extensions[extensionName];
            if (func(loaderExtension)) {
                return;
            }
        }
        defaultFunc();
    };
    return GLTFLoaderExtension;
}());
exports.GLTFLoaderExtension = GLTFLoaderExtension;


/***/ }),

/***/ "./src/glTF/1.0/glTFLoaderInterfaces.ts":
/*!**********************************************!*\
  !*** ./src/glTF/1.0/glTFLoaderInterfaces.ts ***!
  \**********************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
* Enums
* @hidden
*/
var EComponentType;
(function (EComponentType) {
    EComponentType[EComponentType["BYTE"] = 5120] = "BYTE";
    EComponentType[EComponentType["UNSIGNED_BYTE"] = 5121] = "UNSIGNED_BYTE";
    EComponentType[EComponentType["SHORT"] = 5122] = "SHORT";
    EComponentType[EComponentType["UNSIGNED_SHORT"] = 5123] = "UNSIGNED_SHORT";
    EComponentType[EComponentType["FLOAT"] = 5126] = "FLOAT";
})(EComponentType = exports.EComponentType || (exports.EComponentType = {}));
/** @hidden */
var EShaderType;
(function (EShaderType) {
    EShaderType[EShaderType["FRAGMENT"] = 35632] = "FRAGMENT";
    EShaderType[EShaderType["VERTEX"] = 35633] = "VERTEX";
})(EShaderType = exports.EShaderType || (exports.EShaderType = {}));
/** @hidden */
var EParameterType;
(function (EParameterType) {
    EParameterType[EParameterType["BYTE"] = 5120] = "BYTE";
    EParameterType[EParameterType["UNSIGNED_BYTE"] = 5121] = "UNSIGNED_BYTE";
    EParameterType[EParameterType["SHORT"] = 5122] = "SHORT";
    EParameterType[EParameterType["UNSIGNED_SHORT"] = 5123] = "UNSIGNED_SHORT";
    EParameterType[EParameterType["INT"] = 5124] = "INT";
    EParameterType[EParameterType["UNSIGNED_INT"] = 5125] = "UNSIGNED_INT";
    EParameterType[EParameterType["FLOAT"] = 5126] = "FLOAT";
    EParameterType[EParameterType["FLOAT_VEC2"] = 35664] = "FLOAT_VEC2";
    EParameterType[EParameterType["FLOAT_VEC3"] = 35665] = "FLOAT_VEC3";
    EParameterType[EParameterType["FLOAT_VEC4"] = 35666] = "FLOAT_VEC4";
    EParameterType[EParameterType["INT_VEC2"] = 35667] = "INT_VEC2";
    EParameterType[EParameterType["INT_VEC3"] = 35668] = "INT_VEC3";
    EParameterType[EParameterType["INT_VEC4"] = 35669] = "INT_VEC4";
    EParameterType[EParameterType["BOOL"] = 35670] = "BOOL";
    EParameterType[EParameterType["BOOL_VEC2"] = 35671] = "BOOL_VEC2";
    EParameterType[EParameterType["BOOL_VEC3"] = 35672] = "BOOL_VEC3";
    EParameterType[EParameterType["BOOL_VEC4"] = 35673] = "BOOL_VEC4";
    EParameterType[EParameterType["FLOAT_MAT2"] = 35674] = "FLOAT_MAT2";
    EParameterType[EParameterType["FLOAT_MAT3"] = 35675] = "FLOAT_MAT3";
    EParameterType[EParameterType["FLOAT_MAT4"] = 35676] = "FLOAT_MAT4";
    EParameterType[EParameterType["SAMPLER_2D"] = 35678] = "SAMPLER_2D";
})(EParameterType = exports.EParameterType || (exports.EParameterType = {}));
/** @hidden */
var ETextureWrapMode;
(function (ETextureWrapMode) {
    ETextureWrapMode[ETextureWrapMode["CLAMP_TO_EDGE"] = 33071] = "CLAMP_TO_EDGE";
    ETextureWrapMode[ETextureWrapMode["MIRRORED_REPEAT"] = 33648] = "MIRRORED_REPEAT";
    ETextureWrapMode[ETextureWrapMode["REPEAT"] = 10497] = "REPEAT";
})(ETextureWrapMode = exports.ETextureWrapMode || (exports.ETextureWrapMode = {}));
/** @hidden */
var ETextureFilterType;
(function (ETextureFilterType) {
    ETextureFilterType[ETextureFilterType["NEAREST"] = 9728] = "NEAREST";
    ETextureFilterType[ETextureFilterType["LINEAR"] = 9728] = "LINEAR";
    ETextureFilterType[ETextureFilterType["NEAREST_MIPMAP_NEAREST"] = 9984] = "NEAREST_MIPMAP_NEAREST";
    ETextureFilterType[ETextureFilterType["LINEAR_MIPMAP_NEAREST"] = 9985] = "LINEAR_MIPMAP_NEAREST";
    ETextureFilterType[ETextureFilterType["NEAREST_MIPMAP_LINEAR"] = 9986] = "NEAREST_MIPMAP_LINEAR";
    ETextureFilterType[ETextureFilterType["LINEAR_MIPMAP_LINEAR"] = 9987] = "LINEAR_MIPMAP_LINEAR";
})(ETextureFilterType = exports.ETextureFilterType || (exports.ETextureFilterType = {}));
/** @hidden */
var ETextureFormat;
(function (ETextureFormat) {
    ETextureFormat[ETextureFormat["ALPHA"] = 6406] = "ALPHA";
    ETextureFormat[ETextureFormat["RGB"] = 6407] = "RGB";
    ETextureFormat[ETextureFormat["RGBA"] = 6408] = "RGBA";
    ETextureFormat[ETextureFormat["LUMINANCE"] = 6409] = "LUMINANCE";
    ETextureFormat[ETextureFormat["LUMINANCE_ALPHA"] = 6410] = "LUMINANCE_ALPHA";
})(ETextureFormat = exports.ETextureFormat || (exports.ETextureFormat = {}));
/** @hidden */
var ECullingType;
(function (ECullingType) {
    ECullingType[ECullingType["FRONT"] = 1028] = "FRONT";
    ECullingType[ECullingType["BACK"] = 1029] = "BACK";
    ECullingType[ECullingType["FRONT_AND_BACK"] = 1032] = "FRONT_AND_BACK";
})(ECullingType = exports.ECullingType || (exports.ECullingType = {}));
/** @hidden */
var EBlendingFunction;
(function (EBlendingFunction) {
    EBlendingFunction[EBlendingFunction["ZERO"] = 0] = "ZERO";
    EBlendingFunction[EBlendingFunction["ONE"] = 1] = "ONE";
    EBlendingFunction[EBlendingFunction["SRC_COLOR"] = 768] = "SRC_COLOR";
    EBlendingFunction[EBlendingFunction["ONE_MINUS_SRC_COLOR"] = 769] = "ONE_MINUS_SRC_COLOR";
    EBlendingFunction[EBlendingFunction["DST_COLOR"] = 774] = "DST_COLOR";
    EBlendingFunction[EBlendingFunction["ONE_MINUS_DST_COLOR"] = 775] = "ONE_MINUS_DST_COLOR";
    EBlendingFunction[EBlendingFunction["SRC_ALPHA"] = 770] = "SRC_ALPHA";
    EBlendingFunction[EBlendingFunction["ONE_MINUS_SRC_ALPHA"] = 771] = "ONE_MINUS_SRC_ALPHA";
    EBlendingFunction[EBlendingFunction["DST_ALPHA"] = 772] = "DST_ALPHA";
    EBlendingFunction[EBlendingFunction["ONE_MINUS_DST_ALPHA"] = 773] = "ONE_MINUS_DST_ALPHA";
    EBlendingFunction[EBlendingFunction["CONSTANT_COLOR"] = 32769] = "CONSTANT_COLOR";
    EBlendingFunction[EBlendingFunction["ONE_MINUS_CONSTANT_COLOR"] = 32770] = "ONE_MINUS_CONSTANT_COLOR";
    EBlendingFunction[EBlendingFunction["CONSTANT_ALPHA"] = 32771] = "CONSTANT_ALPHA";
    EBlendingFunction[EBlendingFunction["ONE_MINUS_CONSTANT_ALPHA"] = 32772] = "ONE_MINUS_CONSTANT_ALPHA";
    EBlendingFunction[EBlendingFunction["SRC_ALPHA_SATURATE"] = 776] = "SRC_ALPHA_SATURATE";
})(EBlendingFunction = exports.EBlendingFunction || (exports.EBlendingFunction = {}));


/***/ }),

/***/ "./src/glTF/1.0/glTFLoaderUtils.ts":
/*!*****************************************!*\
  !*** ./src/glTF/1.0/glTFLoaderUtils.ts ***!
  \*****************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoaderInterfaces_1 = __webpack_require__(/*! ./glTFLoaderInterfaces */ "./src/glTF/1.0/glTFLoaderInterfaces.ts");
/**
* Utils functions for GLTF
* @hidden
*/
var GLTFUtils = /** @class */ (function () {
    function GLTFUtils() {
    }
    /**
     * Sets the given "parameter" matrix
     * @param scene: the Scene object
     * @param source: the source node where to pick the matrix
     * @param parameter: the GLTF technique parameter
     * @param uniformName: the name of the shader's uniform
     * @param shaderMaterial: the shader material
     */
    GLTFUtils.SetMatrix = function (scene, source, parameter, uniformName, shaderMaterial) {
        var mat = null;
        if (parameter.semantic === "MODEL") {
            mat = source.getWorldMatrix();
        }
        else if (parameter.semantic === "PROJECTION") {
            mat = scene.getProjectionMatrix();
        }
        else if (parameter.semantic === "VIEW") {
            mat = scene.getViewMatrix();
        }
        else if (parameter.semantic === "MODELVIEWINVERSETRANSPOSE") {
            mat = babylonjs_1.Matrix.Transpose(source.getWorldMatrix().multiply(scene.getViewMatrix()).invert());
        }
        else if (parameter.semantic === "MODELVIEW") {
            mat = source.getWorldMatrix().multiply(scene.getViewMatrix());
        }
        else if (parameter.semantic === "MODELVIEWPROJECTION") {
            mat = source.getWorldMatrix().multiply(scene.getTransformMatrix());
        }
        else if (parameter.semantic === "MODELINVERSE") {
            mat = source.getWorldMatrix().invert();
        }
        else if (parameter.semantic === "VIEWINVERSE") {
            mat = scene.getViewMatrix().invert();
        }
        else if (parameter.semantic === "PROJECTIONINVERSE") {
            mat = scene.getProjectionMatrix().invert();
        }
        else if (parameter.semantic === "MODELVIEWINVERSE") {
            mat = source.getWorldMatrix().multiply(scene.getViewMatrix()).invert();
        }
        else if (parameter.semantic === "MODELVIEWPROJECTIONINVERSE") {
            mat = source.getWorldMatrix().multiply(scene.getTransformMatrix()).invert();
        }
        else if (parameter.semantic === "MODELINVERSETRANSPOSE") {
            mat = babylonjs_1.Matrix.Transpose(source.getWorldMatrix().invert());
        }
        else {
            debugger;
        }
        if (mat) {
            switch (parameter.type) {
                case glTFLoaderInterfaces_1.EParameterType.FLOAT_MAT2:
                    shaderMaterial.setMatrix2x2(uniformName, babylonjs_1.Matrix.GetAsMatrix2x2(mat));
                    break;
                case glTFLoaderInterfaces_1.EParameterType.FLOAT_MAT3:
                    shaderMaterial.setMatrix3x3(uniformName, babylonjs_1.Matrix.GetAsMatrix3x3(mat));
                    break;
                case glTFLoaderInterfaces_1.EParameterType.FLOAT_MAT4:
                    shaderMaterial.setMatrix(uniformName, mat);
                    break;
                default: break;
            }
        }
    };
    /**
     * Sets the given "parameter" matrix
     * @param shaderMaterial: the shader material
     * @param uniform: the name of the shader's uniform
     * @param value: the value of the uniform
     * @param type: the uniform's type (EParameterType FLOAT, VEC2, VEC3 or VEC4)
     */
    GLTFUtils.SetUniform = function (shaderMaterial, uniform, value, type) {
        switch (type) {
            case glTFLoaderInterfaces_1.EParameterType.FLOAT:
                shaderMaterial.setFloat(uniform, value);
                return true;
            case glTFLoaderInterfaces_1.EParameterType.FLOAT_VEC2:
                shaderMaterial.setVector2(uniform, babylonjs_1.Vector2.FromArray(value));
                return true;
            case glTFLoaderInterfaces_1.EParameterType.FLOAT_VEC3:
                shaderMaterial.setVector3(uniform, babylonjs_1.Vector3.FromArray(value));
                return true;
            case glTFLoaderInterfaces_1.EParameterType.FLOAT_VEC4:
                shaderMaterial.setVector4(uniform, babylonjs_1.Vector4.FromArray(value));
                return true;
            default: return false;
        }
    };
    /**
    * Returns the wrap mode of the texture
    * @param mode: the mode value
    */
    GLTFUtils.GetWrapMode = function (mode) {
        switch (mode) {
            case glTFLoaderInterfaces_1.ETextureWrapMode.CLAMP_TO_EDGE: return babylonjs_1.Texture.CLAMP_ADDRESSMODE;
            case glTFLoaderInterfaces_1.ETextureWrapMode.MIRRORED_REPEAT: return babylonjs_1.Texture.MIRROR_ADDRESSMODE;
            case glTFLoaderInterfaces_1.ETextureWrapMode.REPEAT: return babylonjs_1.Texture.WRAP_ADDRESSMODE;
            default: return babylonjs_1.Texture.WRAP_ADDRESSMODE;
        }
    };
    /**
     * Returns the byte stride giving an accessor
     * @param accessor: the GLTF accessor objet
     */
    GLTFUtils.GetByteStrideFromType = function (accessor) {
        // Needs this function since "byteStride" isn't requiered in glTF format
        var type = accessor.type;
        switch (type) {
            case "VEC2": return 2;
            case "VEC3": return 3;
            case "VEC4": return 4;
            case "MAT2": return 4;
            case "MAT3": return 9;
            case "MAT4": return 16;
            default: return 1;
        }
    };
    /**
     * Returns the texture filter mode giving a mode value
     * @param mode: the filter mode value
     */
    GLTFUtils.GetTextureFilterMode = function (mode) {
        switch (mode) {
            case glTFLoaderInterfaces_1.ETextureFilterType.LINEAR:
            case glTFLoaderInterfaces_1.ETextureFilterType.LINEAR_MIPMAP_NEAREST:
            case glTFLoaderInterfaces_1.ETextureFilterType.LINEAR_MIPMAP_LINEAR: return babylonjs_1.Texture.TRILINEAR_SAMPLINGMODE;
            case glTFLoaderInterfaces_1.ETextureFilterType.NEAREST:
            case glTFLoaderInterfaces_1.ETextureFilterType.NEAREST_MIPMAP_NEAREST: return babylonjs_1.Texture.NEAREST_SAMPLINGMODE;
            default: return babylonjs_1.Texture.BILINEAR_SAMPLINGMODE;
        }
    };
    GLTFUtils.GetBufferFromBufferView = function (gltfRuntime, bufferView, byteOffset, byteLength, componentType) {
        var byteOffset = bufferView.byteOffset + byteOffset;
        var loadedBufferView = gltfRuntime.loadedBufferViews[bufferView.buffer];
        if (byteOffset + byteLength > loadedBufferView.byteLength) {
            throw new Error("Buffer access is out of range");
        }
        var buffer = loadedBufferView.buffer;
        byteOffset += loadedBufferView.byteOffset;
        switch (componentType) {
            case glTFLoaderInterfaces_1.EComponentType.BYTE: return new Int8Array(buffer, byteOffset, byteLength);
            case glTFLoaderInterfaces_1.EComponentType.UNSIGNED_BYTE: return new Uint8Array(buffer, byteOffset, byteLength);
            case glTFLoaderInterfaces_1.EComponentType.SHORT: return new Int16Array(buffer, byteOffset, byteLength);
            case glTFLoaderInterfaces_1.EComponentType.UNSIGNED_SHORT: return new Uint16Array(buffer, byteOffset, byteLength);
            default: return new Float32Array(buffer, byteOffset, byteLength);
        }
    };
    /**
     * Returns a buffer from its accessor
     * @param gltfRuntime: the GLTF runtime
     * @param accessor: the GLTF accessor
     */
    GLTFUtils.GetBufferFromAccessor = function (gltfRuntime, accessor) {
        var bufferView = gltfRuntime.bufferViews[accessor.bufferView];
        var byteLength = accessor.count * GLTFUtils.GetByteStrideFromType(accessor);
        return GLTFUtils.GetBufferFromBufferView(gltfRuntime, bufferView, accessor.byteOffset, byteLength, accessor.componentType);
    };
    /**
     * Decodes a buffer view into a string
     * @param view: the buffer view
     */
    GLTFUtils.DecodeBufferToText = function (view) {
        var result = "";
        var length = view.byteLength;
        for (var i = 0; i < length; ++i) {
            result += String.fromCharCode(view[i]);
        }
        return result;
    };
    /**
     * Returns the default material of gltf. Related to
     * https://github.com/KhronosGroup/glTF/tree/master/specification/1.0#appendix-a-default-material
     * @param scene: the Babylon.js scene
     */
    GLTFUtils.GetDefaultMaterial = function (scene) {
        if (!GLTFUtils._DefaultMaterial) {
            babylonjs_1.Effect.ShadersStore["GLTFDefaultMaterialVertexShader"] = [
                "precision highp float;",
                "",
                "uniform mat4 worldView;",
                "uniform mat4 projection;",
                "",
                "attribute vec3 position;",
                "",
                "void main(void)",
                "{",
                "    gl_Position = projection * worldView * vec4(position, 1.0);",
                "}"
            ].join("\n");
            babylonjs_1.Effect.ShadersStore["GLTFDefaultMaterialPixelShader"] = [
                "precision highp float;",
                "",
                "uniform vec4 u_emission;",
                "",
                "void main(void)",
                "{",
                "    gl_FragColor = u_emission;",
                "}"
            ].join("\n");
            var shaderPath = {
                vertex: "GLTFDefaultMaterial",
                fragment: "GLTFDefaultMaterial"
            };
            var options = {
                attributes: ["position"],
                uniforms: ["worldView", "projection", "u_emission"],
                samplers: new Array(),
                needAlphaBlending: false
            };
            GLTFUtils._DefaultMaterial = new babylonjs_1.ShaderMaterial("GLTFDefaultMaterial", scene, shaderPath, options);
            GLTFUtils._DefaultMaterial.setColor4("u_emission", new babylonjs_1.Color4(0.5, 0.5, 0.5, 1.0));
        }
        return GLTFUtils._DefaultMaterial;
    };
    // The GLTF default material
    GLTFUtils._DefaultMaterial = null;
    return GLTFUtils;
}());
exports.GLTFUtils = GLTFUtils;


/***/ }),

/***/ "./src/glTF/1.0/glTFMaterialsCommonExtension.ts":
/*!******************************************************!*\
  !*** ./src/glTF/1.0/glTFMaterialsCommonExtension.ts ***!
  \******************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    }
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
var _1 = __webpack_require__(/*! . */ "./src/glTF/1.0/index.ts");
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ./glTFLoader */ "./src/glTF/1.0/glTFLoader.ts");
/** @hidden */
var GLTFMaterialsCommonExtension = /** @class */ (function (_super) {
    __extends(GLTFMaterialsCommonExtension, _super);
    function GLTFMaterialsCommonExtension() {
        return _super.call(this, "KHR_materials_common") || this;
    }
    GLTFMaterialsCommonExtension.prototype.loadRuntimeExtensionsAsync = function (gltfRuntime, onSuccess, onError) {
        if (!gltfRuntime.extensions) {
            return false;
        }
        var extension = gltfRuntime.extensions[this.name];
        if (!extension) {
            return false;
        }
        // Create lights
        var lights = extension.lights;
        if (lights) {
            for (var thing in lights) {
                var light = lights[thing];
                switch (light.type) {
                    case "ambient":
                        var ambientLight = new babylonjs_1.HemisphericLight(light.name, new babylonjs_1.Vector3(0, 1, 0), gltfRuntime.scene);
                        var ambient = light.ambient;
                        if (ambient) {
                            ambientLight.diffuse = babylonjs_1.Color3.FromArray(ambient.color || [1, 1, 1]);
                        }
                        break;
                    case "point":
                        var pointLight = new babylonjs_1.PointLight(light.name, new babylonjs_1.Vector3(10, 10, 10), gltfRuntime.scene);
                        var point = light.point;
                        if (point) {
                            pointLight.diffuse = babylonjs_1.Color3.FromArray(point.color || [1, 1, 1]);
                        }
                        break;
                    case "directional":
                        var dirLight = new babylonjs_1.DirectionalLight(light.name, new babylonjs_1.Vector3(0, -1, 0), gltfRuntime.scene);
                        var directional = light.directional;
                        if (directional) {
                            dirLight.diffuse = babylonjs_1.Color3.FromArray(directional.color || [1, 1, 1]);
                        }
                        break;
                    case "spot":
                        var spot = light.spot;
                        if (spot) {
                            var spotLight = new babylonjs_1.SpotLight(light.name, new babylonjs_1.Vector3(0, 10, 0), new babylonjs_1.Vector3(0, -1, 0), spot.fallOffAngle || Math.PI, spot.fallOffExponent || 0.0, gltfRuntime.scene);
                            spotLight.diffuse = babylonjs_1.Color3.FromArray(spot.color || [1, 1, 1]);
                        }
                        break;
                    default:
                        babylonjs_1.Tools.Warn("GLTF Material Common extension: light type \"" + light.type + "\” not supported");
                        break;
                }
            }
        }
        return false;
    };
    GLTFMaterialsCommonExtension.prototype.loadMaterialAsync = function (gltfRuntime, id, onSuccess, onError) {
        var material = gltfRuntime.materials[id];
        if (!material || !material.extensions) {
            return false;
        }
        var extension = material.extensions[this.name];
        if (!extension) {
            return false;
        }
        var standardMaterial = new babylonjs_1.StandardMaterial(id, gltfRuntime.scene);
        standardMaterial.sideOrientation = babylonjs_1.Material.CounterClockWiseSideOrientation;
        if (extension.technique === "CONSTANT") {
            standardMaterial.disableLighting = true;
        }
        standardMaterial.backFaceCulling = extension.doubleSided === undefined ? false : !extension.doubleSided;
        standardMaterial.alpha = extension.values.transparency === undefined ? 1.0 : extension.values.transparency;
        standardMaterial.specularPower = extension.values.shininess === undefined ? 0.0 : extension.values.shininess;
        // Ambient
        if (typeof extension.values.ambient === "string") {
            this._loadTexture(gltfRuntime, extension.values.ambient, standardMaterial, "ambientTexture", onError);
        }
        else {
            standardMaterial.ambientColor = babylonjs_1.Color3.FromArray(extension.values.ambient || [0, 0, 0]);
        }
        // Diffuse
        if (typeof extension.values.diffuse === "string") {
            this._loadTexture(gltfRuntime, extension.values.diffuse, standardMaterial, "diffuseTexture", onError);
        }
        else {
            standardMaterial.diffuseColor = babylonjs_1.Color3.FromArray(extension.values.diffuse || [0, 0, 0]);
        }
        // Emission
        if (typeof extension.values.emission === "string") {
            this._loadTexture(gltfRuntime, extension.values.emission, standardMaterial, "emissiveTexture", onError);
        }
        else {
            standardMaterial.emissiveColor = babylonjs_1.Color3.FromArray(extension.values.emission || [0, 0, 0]);
        }
        // Specular
        if (typeof extension.values.specular === "string") {
            this._loadTexture(gltfRuntime, extension.values.specular, standardMaterial, "specularTexture", onError);
        }
        else {
            standardMaterial.specularColor = babylonjs_1.Color3.FromArray(extension.values.specular || [0, 0, 0]);
        }
        return true;
    };
    GLTFMaterialsCommonExtension.prototype._loadTexture = function (gltfRuntime, id, material, propertyPath, onError) {
        // Create buffer from texture url
        _1.GLTFLoaderBase.LoadTextureBufferAsync(gltfRuntime, id, function (buffer) {
            // Create texture from buffer
            _1.GLTFLoaderBase.CreateTextureAsync(gltfRuntime, id, buffer, function (texture) { return material[propertyPath] = texture; }, onError);
        }, onError);
    };
    return GLTFMaterialsCommonExtension;
}(_1.GLTFLoaderExtension));
exports.GLTFMaterialsCommonExtension = GLTFMaterialsCommonExtension;
glTFLoader_1.GLTFLoader.RegisterExtension(new GLTFMaterialsCommonExtension());


/***/ }),

/***/ "./src/glTF/1.0/index.ts":
/*!*******************************!*\
  !*** ./src/glTF/1.0/index.ts ***!
  \*******************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

function __export(m) {
    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
}
Object.defineProperty(exports, "__esModule", { value: true });
__export(__webpack_require__(/*! ./glTFBinaryExtension */ "./src/glTF/1.0/glTFBinaryExtension.ts"));
__export(__webpack_require__(/*! ./glTFLoader */ "./src/glTF/1.0/glTFLoader.ts"));
__export(__webpack_require__(/*! ./glTFLoaderExtension */ "./src/glTF/1.0/glTFLoaderExtension.ts"));
__export(__webpack_require__(/*! ./glTFLoaderInterfaces */ "./src/glTF/1.0/glTFLoaderInterfaces.ts"));
__export(__webpack_require__(/*! ./glTFLoaderUtils */ "./src/glTF/1.0/glTFLoaderUtils.ts"));
__export(__webpack_require__(/*! ./glTFMaterialsCommonExtension */ "./src/glTF/1.0/glTFMaterialsCommonExtension.ts"));


/***/ }),

/***/ "./src/glTF/2.0/Extensions/EXT_lights_image_based.ts":
/*!***********************************************************!*\
  !*** ./src/glTF/2.0/Extensions/EXT_lights_image_based.ts ***!
  \***********************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/glTF/2.0/glTFLoader.ts");
var NAME = "EXT_lights_image_based";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/eb3e32332042e04691a5f35103f8c261e50d8f1e/extensions/2.0/Khronos/EXT_lights_image_based/README.md) (Experimental)
 */
var EXT_lights_image_based = /** @class */ (function () {
    /** @hidden */
    function EXT_lights_image_based(loader) {
        /** The name of this extension. */
        this.name = NAME;
        /** Defines whether this extension is enabled. */
        this.enabled = true;
        this._loader = loader;
    }
    /** @hidden */
    EXT_lights_image_based.prototype.dispose = function () {
        delete this._loader;
        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_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_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_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_1.RawCubeTexture(_this._loader.babylonScene, null, light.specularImageSize);
                light._babylonTexture = babylonTexture;
                if (light.intensity != undefined) {
                    babylonTexture.level = light.intensity;
                }
                if (light.rotation) {
                    var rotation = babylonjs_1.Quaternion.FromArray(light.rotation);
                    // Invert the rotation so that positive rotation is counter-clockwise.
                    if (!_this._loader.babylonScene.useRightHandedSystem) {
                        rotation = babylonjs_1.Quaternion.Inverse(rotation);
                    }
                    babylonjs_1.Matrix.FromQuaternionToRef(rotation, babylonTexture.getReflectionTextureMatrix());
                }
                var sphericalHarmonics = babylonjs_1.SphericalHarmonics.FromArray(light.irradianceCoefficients);
                sphericalHarmonics.scale(light.intensity);
                sphericalHarmonics.convertIrradianceToLambertianRadiance();
                var sphericalPolynomial = babylonjs_1.SphericalPolynomial.FromHarmonics(sphericalHarmonics);
                // Compute the lod generation scale to fit exactly to the number of levels available.
                var lodGenerationScale = (imageData_1.length - 1) / babylonjs_1.Scalar.Log2(light.specularImageSize);
                return babylonTexture.updateRGBDAsync(imageData_1, sphericalPolynomial, lodGenerationScale);
            });
        }
        return light._loaded.then(function () {
            return light._babylonTexture;
        });
    };
    return EXT_lights_image_based;
}());
exports.EXT_lights_image_based = EXT_lights_image_based;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new EXT_lights_image_based(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/KHR_draco_mesh_compression.ts":
/*!***************************************************************!*\
  !*** ./src/glTF/2.0/Extensions/KHR_draco_mesh_compression.ts ***!
  \***************************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/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;
        /** Defines whether this extension is enabled. */
        this.enabled = babylonjs_1.DracoCompression.DecoderAvailable;
        this._loader = loader;
    }
    /** @hidden */
    KHR_draco_mesh_compression.prototype.dispose = function () {
        if (this._dracoCompression) {
            this._dracoCompression.dispose();
            delete this._dracoCompression;
        }
        delete this._loader;
    };
    /** @hidden */
    KHR_draco_mesh_compression.prototype._loadVertexDataAsync = function (context, primitive, babylonMesh) {
        var _this = this;
        return glTFLoader_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_1.VertexBuffer.PositionKind);
            loadAttribute("NORMAL", babylonjs_1.VertexBuffer.NormalKind);
            loadAttribute("TANGENT", babylonjs_1.VertexBuffer.TangentKind);
            loadAttribute("TEXCOORD_0", babylonjs_1.VertexBuffer.UVKind);
            loadAttribute("TEXCOORD_1", babylonjs_1.VertexBuffer.UV2Kind);
            loadAttribute("JOINTS_0", babylonjs_1.VertexBuffer.MatricesIndicesKind);
            loadAttribute("WEIGHTS_0", babylonjs_1.VertexBuffer.MatricesWeightsKind);
            loadAttribute("COLOR_0", babylonjs_1.VertexBuffer.ColorKind);
            var bufferView = glTFLoader_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) {
                    if (!_this._dracoCompression) {
                        _this._dracoCompression = new babylonjs_1.DracoCompression();
                    }
                    return _this._dracoCompression.decodeMeshAsync(data, attributes).then(function (babylonVertexData) {
                        var babylonGeometry = new babylonjs_1.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;
}());
exports.KHR_draco_mesh_compression = KHR_draco_mesh_compression;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new KHR_draco_mesh_compression(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/KHR_lights_punctual.ts":
/*!********************************************************!*\
  !*** ./src/glTF/2.0/Extensions/KHR_lights_punctual.ts ***!
  \********************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/glTF/2.0/glTFLoader.ts");
var NAME = "KHR_lights_punctual";
var LightType;
(function (LightType) {
    LightType["DIRECTIONAL"] = "directional";
    LightType["POINT"] = "point";
    LightType["SPOT"] = "spot";
})(LightType || (LightType = {}));
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/1048d162a44dbcb05aefc1874bfd423cf60135a6/extensions/2.0/Khronos/KHR_lights_punctual/README.md) (Experimental)
 */
var KHR_lights = /** @class */ (function () {
    /** @hidden */
    function KHR_lights(loader) {
        /** The name of this extension. */
        this.name = NAME;
        /** Defines whether this extension is enabled. */
        this.enabled = true;
        this._loader = loader;
    }
    /** @hidden */
    KHR_lights.prototype.dispose = function () {
        delete this._loader;
        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_1.GLTFLoader.LoadExtensionAsync(context, node, this.name, function (extensionContext, extension) {
            return _this._loader.loadNodeAsync(context, node, function (babylonMesh) {
                var babylonLight;
                var light = glTFLoader_1.ArrayItem.Get(extensionContext, _this._lights, extension.light);
                var name = light.name || babylonMesh.name;
                switch (light.type) {
                    case LightType.DIRECTIONAL: {
                        babylonLight = new babylonjs_1.DirectionalLight(name, babylonjs_1.Vector3.Backward(), _this._loader.babylonScene);
                        break;
                    }
                    case LightType.POINT: {
                        babylonLight = new babylonjs_1.PointLight(name, babylonjs_1.Vector3.Zero(), _this._loader.babylonScene);
                        break;
                    }
                    case LightType.SPOT: {
                        var babylonSpotLight = new babylonjs_1.SpotLight(name, babylonjs_1.Vector3.Zero(), babylonjs_1.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: {
                        throw new Error(extensionContext + ": Invalid light type (" + light.type + ")");
                    }
                }
                babylonLight.falloffType = babylonjs_1.Light.FALLOFF_GLTF;
                babylonLight.diffuse = light.color ? babylonjs_1.Color3.FromArray(light.color) : babylonjs_1.Color3.White();
                babylonLight.intensity = light.intensity == undefined ? 1 : light.intensity;
                babylonLight.range = light.range == undefined ? Number.MAX_VALUE : light.range;
                babylonLight.parent = babylonMesh;
                assign(babylonMesh);
            });
        });
    };
    return KHR_lights;
}());
exports.KHR_lights = KHR_lights;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new KHR_lights(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/KHR_materials_pbrSpecularGlossiness.ts":
/*!************************************************************************!*\
  !*** ./src/glTF/2.0/Extensions/KHR_materials_pbrSpecularGlossiness.ts ***!
  \************************************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/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 whether this extension is enabled. */
        this.enabled = true;
        this._loader = loader;
    }
    /** @hidden */
    KHR_materials_pbrSpecularGlossiness.prototype.dispose = function () {
        delete this._loader;
    };
    /** @hidden */
    KHR_materials_pbrSpecularGlossiness.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return glTFLoader_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_1.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_1.Color3.FromArray(properties.diffuseFactor);
            babylonMaterial.alpha = properties.diffuseFactor[3];
        }
        else {
            babylonMaterial.albedoColor = babylonjs_1.Color3.White();
        }
        babylonMaterial.reflectivityColor = properties.specularFactor ? babylonjs_1.Color3.FromArray(properties.specularFactor) : babylonjs_1.Color3.White();
        babylonMaterial.microSurface = properties.glossinessFactor == undefined ? 1 : properties.glossinessFactor;
        if (properties.diffuseTexture) {
            promises.push(this._loader.loadTextureInfoAsync(context + "/diffuseTexture", properties.diffuseTexture, function (texture) {
                babylonMaterial.albedoTexture = texture;
                return Promise.resolve();
            }));
        }
        if (properties.specularGlossinessTexture) {
            promises.push(this._loader.loadTextureInfoAsync(context + "/specularGlossinessTexture", properties.specularGlossinessTexture, function (texture) {
                babylonMaterial.reflectivityTexture = texture;
                return Promise.resolve();
            }));
            babylonMaterial.reflectivityTexture.hasAlpha = true;
            babylonMaterial.useMicroSurfaceFromReflectivityMapAlpha = true;
        }
        return Promise.all(promises).then(function () { });
    };
    return KHR_materials_pbrSpecularGlossiness;
}());
exports.KHR_materials_pbrSpecularGlossiness = KHR_materials_pbrSpecularGlossiness;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new KHR_materials_pbrSpecularGlossiness(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/KHR_materials_unlit.ts":
/*!********************************************************!*\
  !*** ./src/glTF/2.0/Extensions/KHR_materials_unlit.ts ***!
  \********************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/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 whether this extension is enabled. */
        this.enabled = true;
        this._loader = loader;
    }
    /** @hidden */
    KHR_materials_unlit.prototype.dispose = function () {
        delete this._loader;
    };
    /** @hidden */
    KHR_materials_unlit.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return glTFLoader_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_1.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_1.Color3.FromArray(properties.baseColorFactor);
                babylonMaterial.alpha = properties.baseColorFactor[3];
            }
            else {
                babylonMaterial.albedoColor = babylonjs_1.Color3.White();
            }
            if (properties.baseColorTexture) {
                promises.push(this._loader.loadTextureInfoAsync(context + "/baseColorTexture", properties.baseColorTexture, function (texture) {
                    babylonMaterial.albedoTexture = texture;
                    return Promise.resolve();
                }));
            }
        }
        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;
}());
exports.KHR_materials_unlit = KHR_materials_unlit;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new KHR_materials_unlit(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/KHR_texture_transform.ts":
/*!**********************************************************!*\
  !*** ./src/glTF/2.0/Extensions/KHR_texture_transform.ts ***!
  \**********************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/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/README.md)
 */
var KHR_texture_transform = /** @class */ (function () {
    /** @hidden */
    function KHR_texture_transform(loader) {
        /** The name of this extension. */
        this.name = NAME;
        /** Defines whether this extension is enabled. */
        this.enabled = true;
        this._loader = loader;
    }
    /** @hidden */
    KHR_texture_transform.prototype.dispose = function () {
        delete this._loader;
    };
    /** @hidden */
    KHR_texture_transform.prototype.loadTextureInfoAsync = function (context, textureInfo, assign) {
        var _this = this;
        return glTFLoader_1.GLTFLoader.LoadExtensionAsync(context, textureInfo, this.name, function (extensionContext, extension) {
            return _this._loader.loadTextureInfoAsync(context, textureInfo, function (babylonTexture) {
                if (!(babylonTexture instanceof babylonjs_1.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;
}());
exports.KHR_texture_transform = KHR_texture_transform;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new KHR_texture_transform(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/MSFT_audio_emitter.ts":
/*!*******************************************************!*\
  !*** ./src/glTF/2.0/Extensions/MSFT_audio_emitter.ts ***!
  \*******************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/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;
        /** Defines whether this extension is enabled. */
        this.enabled = true;
        this._loader = loader;
    }
    /** @hidden */
    MSFT_audio_emitter.prototype.dispose = function () {
        delete this._loader;
        delete this._clips;
        delete this._emitters;
    };
    /** @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_1.ArrayItem.Assign(this._clips);
            glTFLoader_1.ArrayItem.Assign(this._emitters);
        }
    };
    /** @hidden */
    MSFT_audio_emitter.prototype.loadSceneAsync = function (context, scene) {
        var _this = this;
        return glTFLoader_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_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_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_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_1.Vector3.Forward());
                                sound.setDirectionalCone(2 * babylonjs_1.Tools.ToDegrees(emitter.innerAngle == undefined ? Math.PI : emitter.innerAngle), 2 * babylonjs_1.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_1.GLTFLoader.LoadExtensionAsync(context, animation, this.name, function (extensionContext, extension) {
            return _this._loader.loadAnimationAsync(context, animation).then(function (babylonAnimationGroup) {
                var promises = new Array();
                glTFLoader_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.uri);
        }
        else {
            var bufferView = glTFLoader_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_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_1.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_1.WeightedSound(emitter.loop || false, emitter._babylonSounds, weights);
                if (emitter.innerAngle) {
                    weightedSound.directionalConeInnerAngle = 2 * babylonjs_1.Tools.ToDegrees(emitter.innerAngle);
                }
                if (emitter.outerAngle) {
                    weightedSound.directionalConeOuterAngle = 2 * babylonjs_1.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_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_1.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;
}());
exports.MSFT_audio_emitter = MSFT_audio_emitter;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new MSFT_audio_emitter(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/MSFT_lod.ts":
/*!*********************************************!*\
  !*** ./src/glTF/2.0/Extensions/MSFT_lod.ts ***!
  \*********************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/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 whether this extension is enabled. */
        this.enabled = true;
        /**
         * Maximum number of LODs to load, starting from the lowest LOD.
         */
        this.maxLODsToLoad = Number.MAX_VALUE;
        /**
         * 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_1.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_1.Observable();
        this._nodeIndexLOD = null;
        this._nodeSignalLODs = new Array();
        this._nodePromiseLODs = new Array();
        this._materialIndexLOD = null;
        this._materialSignalLODs = new Array();
        this._materialPromiseLODs = new Array();
        this._loader = loader;
    }
    /** @hidden */
    MSFT_lod.prototype.dispose = function () {
        delete this._loader;
        this._nodeIndexLOD = null;
        this._nodeSignalLODs.length = 0;
        this._nodePromiseLODs.length = 0;
        this._materialIndexLOD = null;
        this._materialSignalLODs.length = 0;
        this._materialPromiseLODs.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));
                    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));
                    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.loadNodeAsync = function (context, node, assign) {
        var _this = this;
        return glTFLoader_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_1.Deferred();
                }
                var promise = _this._loader.loadNodeAsync("#/nodes/" + nodeLOD.index, nodeLOD).then(function (babylonMesh) {
                    if (indexLOD !== 0) {
                        // TODO: should not rely on _babylonMesh
                        var previousNodeLOD = nodeLODs[indexLOD - 1];
                        if (previousNodeLOD._babylonMesh) {
                            previousNodeLOD._babylonMesh.dispose();
                            delete previousNodeLOD._babylonMesh;
                            _this._disposeUnusedMaterials();
                        }
                    }
                    return babylonMesh;
                });
                if (indexLOD === 0) {
                    firstPromise = promise;
                }
                else {
                    _this._nodeIndexLOD = null;
                }
                _this._nodePromiseLODs[indexLOD] = _this._nodePromiseLODs[indexLOD] || [];
                _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_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 _babylonData
                        var previousBabylonDataLOD = materialLODs[indexLOD - 1]._babylonData;
                        if (previousBabylonDataLOD[babylonDrawMode]) {
                            previousBabylonDataLOD[babylonDrawMode].material.dispose();
                            delete previousBabylonDataLOD[babylonDrawMode];
                        }
                    }
                    return babylonMaterial;
                });
                if (indexLOD === 0) {
                    firstPromise = promise;
                }
                else {
                    _this._materialIndexLOD = null;
                }
                _this._materialPromiseLODs[indexLOD] = _this._materialPromiseLODs[indexLOD] || [];
                _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, uri) {
        var _this = this;
        // Defer the loading of uris if loading a material or node LOD.
        if (this._materialIndexLOD !== null) {
            this._loader.log("deferred");
            var previousIndexLOD = this._materialIndexLOD - 1;
            this._materialSignalLODs[previousIndexLOD] = this._materialSignalLODs[previousIndexLOD] || new babylonjs_1.Deferred();
            return this._materialSignalLODs[previousIndexLOD].promise.then(function () {
                return _this._loader.loadUriAsync(context, uri);
            });
        }
        else if (this._nodeIndexLOD !== null) {
            this._loader.log("deferred");
            var previousIndexLOD = this._nodeIndexLOD - 1;
            this._nodeSignalLODs[previousIndexLOD] = this._nodeSignalLODs[previousIndexLOD] || new babylonjs_1.Deferred();
            return this._nodeSignalLODs[this._nodeIndexLOD - 1].promise.then(function () {
                return _this._loader.loadUriAsync(context, uri);
            });
        }
        return null;
    };
    /**
     * 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_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._disposeUnusedMaterials = function () {
        // TODO: should not rely on _babylonData
        var materials = this._loader.gltf.materials;
        if (materials) {
            for (var _i = 0, materials_1 = materials; _i < materials_1.length; _i++) {
                var material = materials_1[_i];
                if (material._babylonData) {
                    for (var drawMode in material._babylonData) {
                        var babylonData = material._babylonData[drawMode];
                        if (babylonData.meshes.length === 0) {
                            babylonData.material.dispose(false, true);
                            delete material._babylonData[drawMode];
                        }
                    }
                }
            }
        }
    };
    return MSFT_lod;
}());
exports.MSFT_lod = MSFT_lod;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new MSFT_lod(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/MSFT_minecraftMesh.ts":
/*!*******************************************************!*\
  !*** ./src/glTF/2.0/Extensions/MSFT_minecraftMesh.ts ***!
  \*******************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/glTF/2.0/glTFLoader.ts");
var NAME = "MSFT_minecraftMesh";
/** @hidden */
var MSFT_minecraftMesh = /** @class */ (function () {
    function MSFT_minecraftMesh(loader) {
        this.name = NAME;
        this.enabled = true;
        this._loader = loader;
    }
    MSFT_minecraftMesh.prototype.dispose = function () {
        delete this._loader;
    };
    MSFT_minecraftMesh.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return glTFLoader_1.GLTFLoader.LoadExtraAsync(context, material, this.name, function (extraContext, extra) {
            if (extra) {
                if (!(babylonMaterial instanceof babylonjs_1.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;
}());
exports.MSFT_minecraftMesh = MSFT_minecraftMesh;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new MSFT_minecraftMesh(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/MSFT_sRGBFactors.ts":
/*!*****************************************************!*\
  !*** ./src/glTF/2.0/Extensions/MSFT_sRGBFactors.ts ***!
  \*****************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFLoader_1 = __webpack_require__(/*! ../glTFLoader */ "./src/glTF/2.0/glTFLoader.ts");
var NAME = "MSFT_sRGBFactors";
/** @hidden */
var MSFT_sRGBFactors = /** @class */ (function () {
    function MSFT_sRGBFactors(loader) {
        this.name = NAME;
        this.enabled = true;
        this._loader = loader;
    }
    MSFT_sRGBFactors.prototype.dispose = function () {
        delete this._loader;
    };
    MSFT_sRGBFactors.prototype.loadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        var _this = this;
        return glTFLoader_1.GLTFLoader.LoadExtraAsync(context, material, this.name, function (extraContext, extra) {
            if (extra) {
                if (!(babylonMaterial instanceof babylonjs_1.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;
}());
exports.MSFT_sRGBFactors = MSFT_sRGBFactors;
glTFLoader_1.GLTFLoader.RegisterExtension(NAME, function (loader) { return new MSFT_sRGBFactors(loader); });


/***/ }),

/***/ "./src/glTF/2.0/Extensions/index.ts":
/*!******************************************!*\
  !*** ./src/glTF/2.0/Extensions/index.ts ***!
  \******************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

function __export(m) {
    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
}
Object.defineProperty(exports, "__esModule", { value: true });
__export(__webpack_require__(/*! ./EXT_lights_image_based */ "./src/glTF/2.0/Extensions/EXT_lights_image_based.ts"));
__export(__webpack_require__(/*! ./KHR_draco_mesh_compression */ "./src/glTF/2.0/Extensions/KHR_draco_mesh_compression.ts"));
__export(__webpack_require__(/*! ./KHR_lights_punctual */ "./src/glTF/2.0/Extensions/KHR_lights_punctual.ts"));
__export(__webpack_require__(/*! ./KHR_materials_pbrSpecularGlossiness */ "./src/glTF/2.0/Extensions/KHR_materials_pbrSpecularGlossiness.ts"));
__export(__webpack_require__(/*! ./KHR_materials_unlit */ "./src/glTF/2.0/Extensions/KHR_materials_unlit.ts"));
__export(__webpack_require__(/*! ./KHR_texture_transform */ "./src/glTF/2.0/Extensions/KHR_texture_transform.ts"));
__export(__webpack_require__(/*! ./MSFT_audio_emitter */ "./src/glTF/2.0/Extensions/MSFT_audio_emitter.ts"));
__export(__webpack_require__(/*! ./MSFT_lod */ "./src/glTF/2.0/Extensions/MSFT_lod.ts"));
__export(__webpack_require__(/*! ./MSFT_minecraftMesh */ "./src/glTF/2.0/Extensions/MSFT_minecraftMesh.ts"));
__export(__webpack_require__(/*! ./MSFT_sRGBFactors */ "./src/glTF/2.0/Extensions/MSFT_sRGBFactors.ts"));


/***/ }),

/***/ "./src/glTF/2.0/glTFLoader.ts":
/*!************************************!*\
  !*** ./src/glTF/2.0/glTFLoader.ts ***!
  \************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
var glTFFileLoader_1 = __webpack_require__(/*! ../glTFFileLoader */ "./src/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;
}());
exports.ArrayItem = ArrayItem;
/**
 * The glTF 2.0 loader
 */
var GLTFLoader = /** @class */ (function () {
    /** @hidden */
    function GLTFLoader(parent) {
        /** @hidden */
        this._completePromises = new Array();
        this._disposed = false;
        this._state = null;
        this._extensions = {};
        this._defaultBabylonMaterialData = {};
        this._requests = new Array();
        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_1.Tools.Warn("Extension with the name '" + name + "' already exists");
        }
        GLTFLoader._ExtensionFactories[name] = factory;
        // Keep the order of registration so that extensions registered first are called first.
        GLTFLoader._ExtensionNames.push(name);
    };
    /**
     * Unregisters a loader extension.
     * @param name The name of the loader extenion.
     * @returns A boolean indicating whether the extension has been unregistered
     */
    GLTFLoader.UnregisterExtension = function (name) {
        if (!GLTFLoader._ExtensionFactories[name]) {
            return false;
        }
        delete GLTFLoader._ExtensionFactories[name];
        var index = GLTFLoader._ExtensionNames.indexOf(name);
        if (index !== -1) {
            GLTFLoader._ExtensionNames.splice(index, 1);
        }
        return true;
    };
    Object.defineProperty(GLTFLoader.prototype, "state", {
        /**
         * Gets the loader state.
         */
        get: function () {
            return this._state;
        },
        enumerable: true,
        configurable: true
    });
    /** @hidden */
    GLTFLoader.prototype.dispose = function () {
        if (this._disposed) {
            return;
        }
        this._disposed = true;
        for (var _i = 0, _a = this._requests; _i < _a.length; _i++) {
            var request = _a[_i];
            request.abort();
        }
        this._requests.length = 0;
        delete this.gltf;
        delete this.babylonScene;
        this._completePromises.length = 0;
        for (var name_1 in this._extensions) {
            var extension = this._extensions[name_1];
            if (extension.dispose) {
                this._extensions[name_1].dispose();
            }
        }
        this._extensions = {};
        delete this._rootBabylonMesh;
        delete this._progressCallback;
        this._parent._clear();
    };
    /** @hidden */
    GLTFLoader.prototype.importMeshAsync = function (meshesNames, scene, data, rootUrl, onProgress, fileName) {
        var _this = this;
        return Promise.resolve().then(function () {
            _this.babylonScene = scene;
            _this._rootUrl = rootUrl;
            _this._fileName = fileName || "scene";
            _this._progressCallback = onProgress;
            _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(nodes, function () {
                return {
                    meshes: _this._getMeshes(),
                    particleSystems: [],
                    skeletons: _this._getSkeletons(),
                    animationGroups: _this._getAnimationGroups()
                };
            });
        });
    };
    /** @hidden */
    GLTFLoader.prototype.loadAsync = function (scene, data, rootUrl, onProgress, fileName) {
        var _this = this;
        return Promise.resolve().then(function () {
            _this.babylonScene = scene;
            _this._rootUrl = rootUrl;
            _this._fileName = fileName || "scene";
            _this._progressCallback = onProgress;
            _this._loadData(data);
            return _this._loadAsync(null, function () { return undefined; });
        });
    };
    GLTFLoader.prototype._loadAsync = function (nodes, resultFunc) {
        var _this = this;
        return Promise.resolve().then(function () {
            _this._uniqueRootUrl = (_this._rootUrl.indexOf("file:") === -1 && _this._fileName) ? _this._rootUrl : "" + _this._rootUrl + Date.now() + "/";
            _this._loadExtensions();
            _this._checkExtensions();
            var loadingToReadyCounterName = glTFFileLoader_1.GLTFLoaderState[glTFFileLoader_1.GLTFLoaderState.LOADING] + " => " + glTFFileLoader_1.GLTFLoaderState[glTFFileLoader_1.GLTFLoaderState.READY];
            var loadingToCompleteCounterName = glTFFileLoader_1.GLTFLoaderState[glTFFileLoader_1.GLTFLoaderState.LOADING] + " => " + glTFFileLoader_1.GLTFLoaderState[glTFFileLoader_1.GLTFLoaderState.COMPLETE];
            _this._parent._startPerformanceCounter(loadingToReadyCounterName);
            _this._parent._startPerformanceCounter(loadingToCompleteCounterName);
            _this._setState(glTFFileLoader_1.GLTFLoaderState.LOADING);
            _this._extensionsOnLoading();
            var promises = new Array();
            if (nodes) {
                promises.push(_this.loadSceneAsync("#/nodes", { nodes: nodes, index: -1 }));
            }
            else {
                var scene = ArrayItem.Get("#/scene", _this.gltf.scenes, _this.gltf.scene || 0);
                promises.push(_this.loadSceneAsync("#/scenes/" + scene.index, scene));
            }
            if (_this._parent.compileMaterials) {
                promises.push(_this._compileMaterialsAsync());
            }
            if (_this._parent.compileShadowGenerators) {
                promises.push(_this._compileShadowGeneratorsAsync());
            }
            var resultPromise = Promise.all(promises).then(function () {
                _this._setState(glTFFileLoader_1.GLTFLoaderState.READY);
                _this._extensionsOnReady();
                _this._startAnimations();
                return resultFunc();
            });
            resultPromise.then(function () {
                _this._parent._endPerformanceCounter(loadingToReadyCounterName);
                babylonjs_1.Tools.SetImmediate(function () {
                    if (!_this._disposed) {
                        Promise.all(_this._completePromises).then(function () {
                            _this._parent._endPerformanceCounter(loadingToCompleteCounterName);
                            _this._setState(glTFFileLoader_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 resultPromise;
        }, 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_1.Tools.Warn("Binary buffer length (" + binaryBuffer.byteLength + ") from JSON does not match chunk length (" + data.bin.byteLength + ")");
                }
                binaryBuffer._data = Promise.resolve(data.bin);
            }
            else {
                babylonjs_1.Tools.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 _i = 0, _a = GLTFLoader._ExtensionNames; _i < _a.length; _i++) {
            var name_2 = _a[_i];
            var extension = GLTFLoader._ExtensionFactories[name_2](this);
            this._extensions[name_2] = extension;
            this._parent.onExtensionLoadedObservable.notifyObservers(extension);
        }
        this._parent.onExtensionLoadedObservable.clear();
    };
    GLTFLoader.prototype._checkExtensions = function () {
        if (this.gltf.extensionsRequired) {
            for (var _i = 0, _a = this.gltf.extensionsRequired; _i < _a.length; _i++) {
                var name_3 = _a[_i];
                var extension = this._extensions[name_3];
                if (!extension || !extension.enabled) {
                    throw new Error("Require extension " + name_3 + " is not available");
                }
            }
        }
    };
    GLTFLoader.prototype._setState = function (state) {
        this._state = state;
        this.log(glTFFileLoader_1.GLTFLoaderState[this._state]);
    };
    GLTFLoader.prototype._createRootNode = function () {
        this._rootBabylonMesh = new babylonjs_1.Mesh("__root__", this.babylonScene);
        var rootNode = {
            _babylonMesh: this._rootBabylonMesh,
            index: -1
        };
        switch (this._parent.coordinateSystemMode) {
            case glTFFileLoader_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_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;
                }));
            }
        }
        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);
            }
        }
        else {
            callback(node._babylonMesh);
        }
    };
    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_1 = nodes; _i < nodes_1.length; _i++) {
                var node = nodes_1[_i];
                if (node._babylonMesh) {
                    meshes.push(node._babylonMesh);
                }
                if (node._primitiveBabylonMeshes) {
                    for (var _a = 0, _b = node._primitiveBabylonMeshes; _a < _b.length; _a++) {
                        var babylonMesh = _b[_a];
                        meshes.push(babylonMesh);
                    }
                }
            }
        }
        return meshes;
    };
    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._babylonSkeleton) {
                    skeletons.push(skin._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_1.GLTFLoaderAnimationStartMode.NONE: {
                // do nothing
                break;
            }
            case glTFFileLoader_1.GLTFLoaderAnimationStartMode.FIRST: {
                var babylonAnimationGroups = this._getAnimationGroups();
                if (babylonAnimationGroups.length !== 0) {
                    babylonAnimationGroups[0].start(true);
                }
                break;
            }
            case glTFFileLoader_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_1.Tools.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._babylonMesh) {
            throw new Error(context + ": Invalid recursive node hierarchy");
        }
        var promises = new Array();
        this.logOpen(context + " " + (node.name || ""));
        var babylonMesh = new babylonjs_1.Mesh(node.name || "node" + node.index, this.babylonScene);
        node._babylonMesh = babylonMesh;
        babylonMesh.setEnabled(false);
        GLTFLoader._LoadTransform(node, babylonMesh);
        if (node.mesh != undefined) {
            var mesh = ArrayItem.Get(context + "/mesh", this.gltf.meshes, node.mesh);
            promises.push(this._loadMeshAsync("#/meshes/" + mesh.index, node, mesh, babylonMesh));
        }
        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 = babylonMesh;
            }));
        }
        if (node.children) {
            var _loop_1 = function (index) {
                var childNode = ArrayItem.Get(context + "/children/" + index, this_1.gltf.nodes, index);
                promises.push(this_1.loadNodeAsync("#/nodes/" + node.index, childNode, function (childBabylonMesh) {
                    // See https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins (second implementation note)
                    if (childNode.skin != undefined) {
                        childBabylonMesh.parent = _this._rootBabylonMesh;
                        return;
                    }
                    childBabylonMesh.parent = babylonMesh;
                }));
            };
            var this_1 = this;
            for (var _i = 0, _a = node.children; _i < _a.length; _i++) {
                var index = _a[_i];
                _loop_1(index);
            }
        }
        assign(babylonMesh);
        this._parent.onMeshLoadedObservable.notifyObservers(babylonMesh);
        this.logClose();
        return Promise.all(promises).then(function () {
            babylonMesh.setEnabled(true);
            return babylonMesh;
        });
    };
    GLTFLoader.prototype._loadMeshAsync = function (context, node, mesh, babylonMesh) {
        var _this = this;
        var promises = new Array();
        this.logOpen(context + " " + (mesh.name || ""));
        var primitives = mesh.primitives;
        if (!primitives || primitives.length === 0) {
            throw new Error(context + ": Primitives are missing");
        }
        ArrayItem.Assign(primitives);
        if (primitives.length === 1) {
            var primitive = primitives[0];
            promises.push(this._loadMeshPrimitiveAsync(context + "/primitives/" + primitive.index, node, mesh, primitive, babylonMesh));
        }
        else {
            node._primitiveBabylonMeshes = [];
            for (var _i = 0, primitives_1 = primitives; _i < primitives_1.length; _i++) {
                var primitive = primitives_1[_i];
                var primitiveBabylonMesh = new babylonjs_1.Mesh((mesh.name || babylonMesh.name) + "_" + primitive.index, this.babylonScene, babylonMesh);
                node._primitiveBabylonMeshes.push(primitiveBabylonMesh);
                promises.push(this._loadMeshPrimitiveAsync(context + "/primitives/" + primitive.index, node, mesh, primitive, primitiveBabylonMesh));
                this._parent.onMeshLoadedObservable.notifyObservers(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));
        }
        this.logClose();
        return Promise.all(promises).then(function () {
            _this._forEachPrimitive(node, function (babylonMesh) {
                babylonMesh._refreshBoundingInfo(true);
            });
        });
    };
    GLTFLoader.prototype._loadMeshPrimitiveAsync = function (context, node, mesh, primitive, babylonMesh) {
        var _this = this;
        var promises = new Array();
        this.logOpen("" + context);
        this._createMorphTargets(context, node, mesh, primitive, babylonMesh);
        promises.push(this._loadVertexDataAsync(context, primitive, babylonMesh).then(function (babylonGeometry) {
            return _this._loadMorphTargetsAsync(context, primitive, babylonMesh, babylonGeometry).then(function () {
                babylonGeometry.applyToMesh(babylonMesh);
            });
        }));
        var babylonDrawMode = GLTFLoader._GetDrawMode(context, primitive.mode);
        if (primitive.material == undefined) {
            var babylonMaterial = this._defaultBabylonMaterialData[babylonDrawMode];
            if (!babylonMaterial) {
                babylonMaterial = this._createDefaultMaterial("__gltf_default", babylonDrawMode);
                this._parent.onMaterialLoadedObservable.notifyObservers(babylonMaterial);
                this._defaultBabylonMaterialData[babylonDrawMode] = babylonMaterial;
            }
            babylonMesh.material = babylonMaterial;
        }
        else {
            var material = ArrayItem.Get(context + "/material", this.gltf.materials, primitive.material);
            promises.push(this._loadMaterialAsync("#/materials/" + material.index, material, babylonMesh, babylonDrawMode, function (babylonMaterial) {
                babylonMesh.material = babylonMaterial;
            }));
        }
        this.logClose();
        return Promise.all(promises).then(function () { });
    };
    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_1.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) {
                babylonGeometry.setVerticesBuffer(babylonVertexBuffer, accessor.count);
            }));
            if (callback) {
                callback(accessor);
            }
        };
        loadAttribute("POSITION", babylonjs_1.VertexBuffer.PositionKind);
        loadAttribute("NORMAL", babylonjs_1.VertexBuffer.NormalKind);
        loadAttribute("TANGENT", babylonjs_1.VertexBuffer.TangentKind);
        loadAttribute("TEXCOORD_0", babylonjs_1.VertexBuffer.UVKind);
        loadAttribute("TEXCOORD_1", babylonjs_1.VertexBuffer.UV2Kind);
        loadAttribute("JOINTS_0", babylonjs_1.VertexBuffer.MatricesIndicesKind);
        loadAttribute("WEIGHTS_0", babylonjs_1.VertexBuffer.MatricesWeightsKind);
        loadAttribute("COLOR_0", babylonjs_1.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");
        }
        babylonMesh.morphTargetManager = new babylonjs_1.MorphTargetManager();
        for (var index = 0; index < primitive.targets.length; index++) {
            var weight = node.weights ? node.weights[index] : mesh.weights ? mesh.weights[index] : 0;
            babylonMesh.morphTargetManager.addTarget(new babylonjs_1.MorphTarget("morphTarget" + index, weight));
            // 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_1.VertexBuffer.PositionKind, function (babylonVertexBuffer, data) {
            babylonVertexBuffer.forEach(data.length, function (value, index) {
                data[index] += value;
            });
            babylonMorphTarget.setPositions(data);
        });
        loadAttribute("NORMAL", babylonjs_1.VertexBuffer.NormalKind, function (babylonVertexBuffer, data) {
            babylonVertexBuffer.forEach(data.length, function (value, index) {
                data[index] += value;
            });
            babylonMorphTarget.setNormals(data);
        });
        loadAttribute("TANGENT", babylonjs_1.VertexBuffer.TangentKind, function (babylonVertexBuffer, data) {
            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) {
                    data[dataIndex++] += value;
                }
            });
            babylonMorphTarget.setTangents(data);
        });
        return Promise.all(promises).then(function () { });
    };
    GLTFLoader._LoadTransform = function (node, babylonNode) {
        var position = babylonjs_1.Vector3.Zero();
        var rotation = babylonjs_1.Quaternion.Identity();
        var scaling = babylonjs_1.Vector3.One();
        if (node.matrix) {
            var matrix = babylonjs_1.Matrix.FromArray(node.matrix);
            matrix.decompose(scaling, rotation, position);
        }
        else {
            if (node.translation) {
                position = babylonjs_1.Vector3.FromArray(node.translation);
            }
            if (node.rotation) {
                rotation = babylonjs_1.Quaternion.FromArray(node.rotation);
            }
            if (node.scale) {
                scaling = babylonjs_1.Vector3.FromArray(node.scale);
            }
        }
        babylonNode.position = position;
        babylonNode.rotationQuaternion = rotation;
        babylonNode.scaling = scaling;
    };
    GLTFLoader.prototype._loadSkinAsync = function (context, node, skin) {
        var _this = this;
        var assignSkeleton = function (skeleton) {
            _this._forEachPrimitive(node, function (babylonMesh) {
                babylonMesh.skeleton = skeleton;
            });
            // Ignore the TRS of skinned nodes.
            // See https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins (second implementation note)
            node._babylonMesh.position = babylonjs_1.Vector3.Zero();
            node._babylonMesh.rotationQuaternion = babylonjs_1.Quaternion.Identity();
            node._babylonMesh.scaling = babylonjs_1.Vector3.One();
        };
        if (skin._promise) {
            return skin._promise.then(function () {
                assignSkeleton(skin._babylonSkeleton);
            });
        }
        var skeletonId = "skeleton" + skin.index;
        var babylonSkeleton = new babylonjs_1.Skeleton(skin.name || skeletonId, skeletonId, this.babylonScene);
        skin._babylonSkeleton = babylonSkeleton;
        this._loadBones(context, skin);
        assignSkeleton(babylonSkeleton);
        return (skin._promise = this._loadSkinInverseBindMatricesDataAsync(context, skin).then(function (inverseBindMatricesData) {
            _this._updateBoneMatrices(babylonSkeleton, inverseBindMatricesData);
        }));
    };
    GLTFLoader.prototype._loadBones = function (context, skin) {
        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, babylonBones);
        }
    };
    GLTFLoader.prototype._loadBone = function (node, skin, babylonBones) {
        var babylonBone = babylonBones[node.index];
        if (babylonBone) {
            return babylonBone;
        }
        var babylonParentBone = null;
        if (node.parent && node.parent._babylonMesh !== this._rootBabylonMesh) {
            babylonParentBone = this._loadBone(node.parent, skin, babylonBones);
        }
        var boneIndex = skin.joints.indexOf(node.index);
        babylonBone = new babylonjs_1.Bone(node.name || "joint" + node.index, skin._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_1.Matrix.Identity();
            var boneIndex = babylonBone._index;
            if (inverseBindMatricesData && boneIndex !== -1) {
                babylonjs_1.Matrix.FromArrayToRef(inverseBindMatricesData, boneIndex * 16, baseMatrix);
                baseMatrix.invertToRef(baseMatrix);
            }
            var babylonParentBone = babylonBone.getParent();
            if (babylonParentBone) {
                baseMatrix.multiplyToRef(babylonParentBone.getInvertedAbsoluteTransform(), baseMatrix);
            }
            babylonBone.updateMatrix(baseMatrix, false, false);
            babylonBone._updateDifferenceMatrix(undefined, false);
        }
    };
    GLTFLoader.prototype._getNodeMatrix = function (node) {
        return node.matrix ?
            babylonjs_1.Matrix.FromArray(node.matrix) :
            babylonjs_1.Matrix.Compose(node.scale ? babylonjs_1.Vector3.FromArray(node.scale) : babylonjs_1.Vector3.One(), node.rotation ? babylonjs_1.Quaternion.FromArray(node.rotation) : babylonjs_1.Quaternion.Identity(), node.translation ? babylonjs_1.Vector3.FromArray(node.translation) : babylonjs_1.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 || ""));
        var babylonCamera = new babylonjs_1.FreeCamera(camera.name || "camera" + camera.index, babylonjs_1.Vector3.Zero(), this.babylonScene, false);
        babylonCamera.rotation = new babylonjs_1.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 || Number.MAX_VALUE;
                break;
            }
            case "orthographic" /* ORTHOGRAPHIC */: {
                if (!camera.orthographic) {
                    throw new Error(context + ": Camera orthographic properties are missing");
                }
                babylonCamera.mode = babylonjs_1.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 + ")");
            }
        }
        assign(babylonCamera);
        this._parent.onCameraLoadedObservable.notifyObservers(babylonCamera);
        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));
        }
        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;
        }
        var babylonAnimationGroup = new babylonjs_1.AnimationGroup(animation.name || "animation" + animation.index, this.babylonScene);
        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;
        });
    };
    GLTFLoader.prototype._loadAnimationChannelAsync = function (context, animationContext, animation, channel, babylonAnimationGroup) {
        var _this = this;
        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._babylonMesh)) {
            return Promise.resolve();
        }
        // Ignore animations targeting TRS of skinned nodes.
        // See https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins (second implementation note)
        if (targetNode.skin != undefined && channel.target.path !== "weights" /* WEIGHTS */) {
            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_1.Animation.ANIMATIONTYPE_VECTOR3;
                    break;
                }
                case "rotation" /* ROTATION */: {
                    targetPath = "rotationQuaternion";
                    animationType = babylonjs_1.Animation.ANIMATIONTYPE_QUATERNION;
                    break;
                }
                case "scale" /* SCALE */: {
                    targetPath = "scaling";
                    animationType = babylonjs_1.Animation.ANIMATIONTYPE_VECTOR3;
                    break;
                }
                case "weights" /* WEIGHTS */: {
                    targetPath = "influence";
                    animationType = babylonjs_1.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_1.Vector3.FromArray(data.output, outputBufferOffset);
                        outputBufferOffset += 3;
                        return value;
                    };
                    break;
                }
                case "rotationQuaternion": {
                    getNextOutputValue = function () {
                        var value = babylonjs_1.Quaternion.FromArray(data.output, outputBufferOffset);
                        outputBufferOffset += 4;
                        return value;
                    };
                    break;
                }
                case "scaling": {
                    getNextOutputValue = function () {
                        var value = babylonjs_1.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_1.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_1.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 (babylonMesh) {
                        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_1.Animation(animationName, targetPath, 1, animationType);
                babylonAnimation.setKeys(keys);
                if (targetNode._babylonBones) {
                    var babylonAnimationTargets = [targetNode._babylonMesh].concat(targetNode._babylonBones);
                    for (var _i = 0, babylonAnimationTargets_1 = babylonAnimationTargets; _i < babylonAnimationTargets_1.length; _i++) {
                        var babylonAnimationTarget = babylonAnimationTargets_1[_i];
                        babylonAnimationTarget.animations.push(babylonAnimation);
                    }
                    babylonAnimationGroup.addTargetedAnimation(babylonAnimation, babylonAnimationTargets);
                }
                else {
                    targetNode._babylonMesh.animations.push(babylonAnimation);
                    babylonAnimationGroup.addTargetedAnimation(babylonAnimation, targetNode._babylonMesh);
                }
            }
        });
    };
    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;
    };
    GLTFLoader.prototype._loadBufferAsync = function (context, buffer) {
        if (buffer._data) {
            return buffer._data;
        }
        if (!buffer.uri) {
            throw new Error(context + "/uri: Value is missing");
        }
        buffer._data = this.loadUriAsync(context + "/uri", buffer.uri);
        return buffer._data;
    };
    /**
     * 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) {
        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).then(function (data) {
            try {
                return new Uint8Array(data.buffer, data.byteOffset + (bufferView.byteOffset || 0), bufferView.byteLength);
            }
            catch (e) {
                throw new Error(context + ": " + e.message);
            }
        });
        return bufferView._data;
    };
    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;
        }
        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._loadFloatAccessorAsync = function (context, accessor) {
        // TODO: support normalized and stride
        var _this = this;
        if (accessor.componentType !== 5126 /* FLOAT */) {
            throw new Error("Invalid component type " + accessor.componentType);
        }
        if (accessor._data) {
            return accessor._data;
        }
        var numComponents = GLTFLoader._GetNumComponents(context, accessor.type);
        var length = numComponents * accessor.count;
        if (accessor.bufferView == undefined) {
            accessor._data = Promise.resolve(new Float32Array(length));
        }
        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, length);
            });
        }
        if (accessor.sparse) {
            var sparse_1 = accessor.sparse;
            accessor._data = accessor._data.then(function (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 values = GLTFLoader._GetTypedArray(context + "/sparse/values", accessor.componentType, valuesData, sparse_1.values.byteOffset, numComponents * sparse_1.count);
                    var valuesIndex = 0;
                    for (var indicesIndex = 0; indicesIndex < indices.length; indicesIndex++) {
                        var dataIndex = indices[indicesIndex] * numComponents;
                        for (var componentIndex = 0; componentIndex < numComponents; componentIndex++) {
                            data[dataIndex++] = values[valuesIndex++];
                        }
                    }
                    return data;
                });
            });
        }
        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_1.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_1.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_1.VertexBuffer.GetTypeByteLength(accessor.componentType) !== 0) {
            babylonjs_1.Tools.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_1.VertexBuffer(_this.babylonScene.getEngine(), data, kind, false);
            });
        }
        else {
            var bufferView_1 = ArrayItem.Get(context + "/bufferView", this.gltf.bufferViews, accessor.bufferView);
            accessor._babylonVertexBuffer = this._loadVertexBufferViewAsync(bufferView_1, kind).then(function (babylonBuffer) {
                var size = GLTFLoader._GetNumComponents(context, accessor.type);
                return new babylonjs_1.VertexBuffer(_this.babylonScene.getEngine(), babylonBuffer, kind, false, false, bufferView_1.byteStride, false, accessor.byteOffset, size, accessor.componentType, accessor.normalized, true);
            });
        }
        return accessor._babylonVertexBuffer;
    };
    GLTFLoader.prototype._loadMaterialMetallicRoughnessPropertiesAsync = function (context, properties, babylonMaterial) {
        if (!(babylonMaterial instanceof babylonjs_1.PBRMaterial)) {
            throw new Error(context + ": Material type not supported");
        }
        var promises = new Array();
        if (properties) {
            if (properties.baseColorFactor) {
                babylonMaterial.albedoColor = babylonjs_1.Color3.FromArray(properties.baseColorFactor);
                babylonMaterial.alpha = properties.baseColorFactor[3];
            }
            else {
                babylonMaterial.albedoColor = babylonjs_1.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) {
                    babylonMaterial.albedoTexture = texture;
                }));
            }
            if (properties.metallicRoughnessTexture) {
                promises.push(this.loadTextureInfoAsync(context + "/metallicRoughnessTexture", properties.metallicRoughnessTexture, function (texture) {
                    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._babylonData = material._babylonData || {};
        var babylonData = material._babylonData[babylonDrawMode];
        if (!babylonData) {
            this.logOpen(context + " " + (material.name || ""));
            var babylonMaterial = this.createMaterial(context, material, babylonDrawMode);
            babylonData = {
                material: babylonMaterial,
                meshes: [],
                promise: this.loadMaterialPropertiesAsync(context, material, babylonMaterial)
            };
            material._babylonData[babylonDrawMode] = babylonData;
            this._parent.onMaterialLoadedObservable.notifyObservers(babylonMaterial);
            this.logClose();
        }
        babylonData.meshes.push(babylonMesh);
        babylonMesh.onDisposeObservable.addOnce(function () {
            var index = babylonData.meshes.indexOf(babylonMesh);
            if (index !== -1) {
                babylonData.meshes.splice(index, 1);
            }
        });
        assign(babylonData.material);
        return babylonData.promise.then(function () {
            return babylonData.material;
        });
    };
    GLTFLoader.prototype._createDefaultMaterial = function (name, babylonDrawMode) {
        var babylonMaterial = new babylonjs_1.PBRMaterial(name, this.babylonScene);
        babylonMaterial.sideOrientation = this.babylonScene.useRightHandedSystem ? babylonjs_1.Material.CounterClockWiseSideOrientation : babylonjs_1.Material.ClockWiseSideOrientation;
        babylonMaterial.fillMode = babylonDrawMode;
        babylonMaterial.enableSpecularAntiAliasing = true;
        babylonMaterial.useRadianceOverAlpha = !this._parent.transparencyAsCoverage;
        babylonMaterial.useSpecularOverAlpha = !this._parent.transparencyAsCoverage;
        babylonMaterial.transparencyMode = babylonjs_1.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;
        return this._createDefaultMaterial(name, babylonDrawMode);
    };
    /**
     * 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_1.PBRMaterial)) {
            throw new Error(context + ": Material type not supported");
        }
        var promises = new Array();
        babylonMaterial.emissiveColor = material.emissiveFactor ? babylonjs_1.Color3.FromArray(material.emissiveFactor) : new babylonjs_1.Color3(0, 0, 0);
        if (material.doubleSided) {
            babylonMaterial.backFaceCulling = false;
            babylonMaterial.twoSidedLighting = true;
        }
        if (material.normalTexture) {
            promises.push(this.loadTextureInfoAsync(context + "/normalTexture", material.normalTexture, function (texture) {
                babylonMaterial.bumpTexture = texture;
            }));
            babylonMaterial.invertNormalMapX = !this.babylonScene.useRightHandedSystem;
            babylonMaterial.invertNormalMapY = this.babylonScene.useRightHandedSystem;
            if (material.normalTexture.scale != undefined) {
                babylonMaterial.bumpTexture.level = material.normalTexture.scale;
            }
        }
        if (material.occlusionTexture) {
            promises.push(this.loadTextureInfoAsync(context + "/occlusionTexture", material.occlusionTexture, function (texture) {
                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) {
                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_1.PBRMaterial)) {
            throw new Error(context + ": Material type not supported");
        }
        var alphaMode = material.alphaMode || "OPAQUE" /* OPAQUE */;
        switch (alphaMode) {
            case "OPAQUE" /* OPAQUE */: {
                babylonMaterial.transparencyMode = babylonjs_1.PBRMaterial.PBRMATERIAL_OPAQUE;
                break;
            }
            case "MASK" /* MASK */: {
                babylonMaterial.transparencyMode = babylonjs_1.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_1.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) {
        if (assign === void 0) { assign = function () { }; }
        var extensionPromise = this._extensionsLoadTextureInfoAsync(context, textureInfo, assign);
        if (extensionPromise) {
            return extensionPromise;
        }
        this.logOpen("" + context);
        var texture = ArrayItem.Get(context + "/index", this.gltf.textures, textureInfo.index);
        var promise = this._loadTextureAsync("#/textures/" + textureInfo.index, texture, function (babylonTexture) {
            babylonTexture.coordinatesIndex = textureInfo.texCoord || 0;
            assign(babylonTexture);
        });
        this.logClose();
        return promise;
    };
    GLTFLoader.prototype._loadTextureAsync = function (context, texture, assign) {
        var _this = this;
        if (assign === void 0) { assign = function () { }; }
        var promises = new Array();
        this.logOpen(context + " " + (texture.name || ""));
        var sampler = (texture.sampler == undefined ? GLTFLoader._DefaultSampler : ArrayItem.Get(context + "/sampler", this.gltf.samplers, texture.sampler));
        var samplerData = this._loadSampler("#/samplers/" + sampler.index, sampler);
        var deferred = new babylonjs_1.Deferred();
        var babylonTexture = new babylonjs_1.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")));
            }
        });
        promises.push(deferred.promise);
        babylonTexture.name = texture.name || "texture" + texture.index;
        babylonTexture.wrapU = samplerData.wrapU;
        babylonTexture.wrapV = samplerData.wrapV;
        var image = ArrayItem.Get(context + "/source", this.gltf.images, texture.source);
        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, new Blob([data], { type: image.mimeType }));
        }));
        assign(babylonTexture);
        this._parent.onTextureLoadedObservable.notifyObservers(babylonTexture);
        this.logClose();
        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.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 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, uri) {
        var _this = this;
        var extensionPromise = this._extensionsLoadUriAsync(context, uri);
        if (extensionPromise) {
            return extensionPromise;
        }
        if (!GLTFLoader._ValidateUri(uri)) {
            throw new Error(context + ": '" + uri + "' is invalid");
        }
        if (babylonjs_1.Tools.IsBase64(uri)) {
            var data = new Uint8Array(babylonjs_1.Tools.DecodeBase64(uri));
            this.log("Decoded " + uri.substr(0, 64) + "... (" + data.length + " bytes)");
            return Promise.resolve(data);
        }
        this.log("Loading " + uri);
        return this._parent.preprocessUrlAsync(this._rootUrl + uri).then(function (url) {
            return new Promise(function (resolve, reject) {
                if (!_this._disposed) {
                    var request_1 = babylonjs_1.Tools.LoadFile(url, function (fileData) {
                        if (!_this._disposed) {
                            var data = new Uint8Array(fileData);
                            _this.log("Loaded " + uri + " (" + data.length + " bytes)");
                            resolve(data);
                        }
                    }, function (event) {
                        if (!_this._disposed) {
                            if (request_1) {
                                request_1._lengthComputable = event.lengthComputable;
                                request_1._loaded = event.loaded;
                                request_1._total = event.total;
                            }
                            if (_this._state === glTFFileLoader_1.GLTFLoaderState.LOADING) {
                                try {
                                    _this._onProgress();
                                }
                                catch (e) {
                                    reject(e);
                                }
                            }
                        }
                    }, _this.babylonScene.offlineProvider, true, function (request, exception) {
                        if (!_this._disposed) {
                            reject(new babylonjs_1.LoadFileError(context + ": Failed to load '" + uri + "'" + (request ? ": " + request.status + " " + request.statusText : ""), request));
                        }
                    });
                    _this._requests.push(request_1);
                }
            });
        });
    };
    GLTFLoader.prototype._onProgress = function () {
        if (!this._progressCallback) {
            return;
        }
        var lengthComputable = true;
        var loaded = 0;
        var total = 0;
        for (var _i = 0, _a = this._requests; _i < _a.length; _i++) {
            var request = _a[_i];
            if (request._lengthComputable === undefined || request._loaded === undefined || request._total === undefined) {
                return;
            }
            lengthComputable = lengthComputable && request._lengthComputable;
            loaded += request._loaded;
            total += request._total;
        }
        this._progressCallback(new babylonjs_1.SceneLoaderProgressEvent(lengthComputable, loaded, lengthComputable ? total : 0));
    };
    GLTFLoader._GetTextureWrapMode = function (context, mode) {
        // Set defaults if undefined
        mode = mode == undefined ? 10497 /* REPEAT */ : mode;
        switch (mode) {
            case 33071 /* CLAMP_TO_EDGE */: return babylonjs_1.Texture.CLAMP_ADDRESSMODE;
            case 33648 /* MIRRORED_REPEAT */: return babylonjs_1.Texture.MIRROR_ADDRESSMODE;
            case 10497 /* REPEAT */: return babylonjs_1.Texture.WRAP_ADDRESSMODE;
            default:
                babylonjs_1.Tools.Warn(context + ": Invalid value (" + mode + ")");
                return babylonjs_1.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_1.Texture.LINEAR_NEAREST;
                case 9729 /* LINEAR */: return babylonjs_1.Texture.LINEAR_LINEAR;
                case 9984 /* NEAREST_MIPMAP_NEAREST */: return babylonjs_1.Texture.LINEAR_NEAREST_MIPNEAREST;
                case 9985 /* LINEAR_MIPMAP_NEAREST */: return babylonjs_1.Texture.LINEAR_LINEAR_MIPNEAREST;
                case 9986 /* NEAREST_MIPMAP_LINEAR */: return babylonjs_1.Texture.LINEAR_NEAREST_MIPLINEAR;
                case 9987 /* LINEAR_MIPMAP_LINEAR */: return babylonjs_1.Texture.LINEAR_LINEAR_MIPLINEAR;
                default:
                    babylonjs_1.Tools.Warn(context + "/minFilter: Invalid value (" + minFilter + ")");
                    return babylonjs_1.Texture.LINEAR_LINEAR_MIPLINEAR;
            }
        }
        else {
            if (magFilter !== 9728 /* NEAREST */) {
                babylonjs_1.Tools.Warn(context + "/magFilter: Invalid value (" + magFilter + ")");
            }
            switch (minFilter) {
                case 9728 /* NEAREST */: return babylonjs_1.Texture.NEAREST_NEAREST;
                case 9729 /* LINEAR */: return babylonjs_1.Texture.NEAREST_LINEAR;
                case 9984 /* NEAREST_MIPMAP_NEAREST */: return babylonjs_1.Texture.NEAREST_NEAREST_MIPNEAREST;
                case 9985 /* LINEAR_MIPMAP_NEAREST */: return babylonjs_1.Texture.NEAREST_LINEAR_MIPNEAREST;
                case 9986 /* NEAREST_MIPMAP_LINEAR */: return babylonjs_1.Texture.NEAREST_NEAREST_MIPLINEAR;
                case 9987 /* LINEAR_MIPMAP_LINEAR */: return babylonjs_1.Texture.NEAREST_LINEAR_MIPLINEAR;
                default:
                    babylonjs_1.Tools.Warn(context + "/minFilter: Invalid value (" + minFilter + ")");
                    return babylonjs_1.Texture.NEAREST_NEAREST_MIPNEAREST;
            }
        }
    };
    GLTFLoader._GetTypedArray = function (context, componentType, bufferView, byteOffset, length) {
        var buffer = bufferView.buffer;
        byteOffset = bufferView.byteOffset + (byteOffset || 0);
        try {
            switch (componentType) {
                case 5120 /* BYTE */: return new Int8Array(buffer, byteOffset, length);
                case 5121 /* UNSIGNED_BYTE */: return new Uint8Array(buffer, byteOffset, length);
                case 5122 /* SHORT */: return new Int16Array(buffer, byteOffset, length);
                case 5123 /* UNSIGNED_SHORT */: return new Uint16Array(buffer, byteOffset, length);
                case 5125 /* UNSIGNED_INT */: return new Uint32Array(buffer, byteOffset, length);
                case 5126 /* FLOAT */: return new Float32Array(buffer, byteOffset, length);
                default: throw new Error("Invalid component type " + componentType);
            }
        }
        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_1.Tools.IsBase64(uri) || uri.indexOf("..") === -1);
    };
    GLTFLoader._GetDrawMode = function (context, mode) {
        if (mode == undefined) {
            mode = 4 /* TRIANGLES */;
        }
        switch (mode) {
            case 0 /* POINTS */: return babylonjs_1.Material.PointListDrawMode;
            case 1 /* LINES */: return babylonjs_1.Material.LineListDrawMode;
            case 2 /* LINE_LOOP */: return babylonjs_1.Material.LineLoopDrawMode;
            case 3 /* LINE_STRIP */: return babylonjs_1.Material.LineStripDrawMode;
            case 4 /* TRIANGLES */: return babylonjs_1.Material.TriangleFillMode;
            case 5 /* TRIANGLE_STRIP */: return babylonjs_1.Material.TriangleStripDrawMode;
            case 6 /* TRIANGLE_FAN */: return babylonjs_1.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._babylonData) {
                    for (var babylonDrawMode in material._babylonData) {
                        var babylonData = material._babylonData[babylonDrawMode];
                        for (var _b = 0, _c = babylonData.meshes; _b < _c.length; _b++) {
                            var babylonMesh = _c[_b];
                            // Ensure nonUniformScaling is set if necessary.
                            babylonMesh.computeWorldMatrix(true);
                            var babylonMaterial = babylonData.material;
                            promises.push(babylonMaterial.forceCompilationAsync(babylonMesh));
                            if (this._parent.useClipPlane) {
                                promises.push(babylonMaterial.forceCompilationAsync(babylonMesh, { clipPlane: 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 = GLTFLoader._ExtensionNames; _i < _a.length; _i++) {
            var name_4 = _a[_i];
            var extension = this._extensions[name_4];
            if (extension.enabled) {
                action(extension);
            }
        }
    };
    GLTFLoader.prototype._applyExtensions = function (property, actionAsync) {
        for (var _i = 0, _a = GLTFLoader._ExtensionNames; _i < _a.length; _i++) {
            var name_5 = _a[_i];
            var extension = this._extensions[name_5];
            if (extension.enabled) {
                var loaderProperty = property;
                loaderProperty._activeLoaderExtensions = loaderProperty._activeLoaderExtensions || {};
                var activeLoaderExtensions = loaderProperty._activeLoaderExtensions;
                if (!activeLoaderExtensions[name_5]) {
                    activeLoaderExtensions[name_5] = true;
                    try {
                        var result = actionAsync(extension);
                        if (result) {
                            return result;
                        }
                    }
                    finally {
                        delete activeLoaderExtensions[name_5];
                    }
                }
            }
        }
        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, function (extension) { return extension.loadSceneAsync && extension.loadSceneAsync(context, scene); });
    };
    GLTFLoader.prototype._extensionsLoadNodeAsync = function (context, node, assign) {
        return this._applyExtensions(node, function (extension) { return extension.loadNodeAsync && extension.loadNodeAsync(context, node, assign); });
    };
    GLTFLoader.prototype._extensionsLoadCameraAsync = function (context, camera, assign) {
        return this._applyExtensions(camera, function (extension) { return extension.loadCameraAsync && extension.loadCameraAsync(context, camera, assign); });
    };
    GLTFLoader.prototype._extensionsLoadVertexDataAsync = function (context, primitive, babylonMesh) {
        return this._applyExtensions(primitive, function (extension) { return extension._loadVertexDataAsync && extension._loadVertexDataAsync(context, primitive, babylonMesh); });
    };
    GLTFLoader.prototype._extensionsLoadMaterialAsync = function (context, material, babylonMesh, babylonDrawMode, assign) {
        return this._applyExtensions(material, function (extension) { return extension._loadMaterialAsync && extension._loadMaterialAsync(context, material, babylonMesh, babylonDrawMode, assign); });
    };
    GLTFLoader.prototype._extensionsCreateMaterial = function (context, material, babylonDrawMode) {
        return this._applyExtensions({}, function (extension) { return extension.createMaterial && extension.createMaterial(context, material, babylonDrawMode); });
    };
    GLTFLoader.prototype._extensionsLoadMaterialPropertiesAsync = function (context, material, babylonMaterial) {
        return this._applyExtensions(material, function (extension) { return extension.loadMaterialPropertiesAsync && extension.loadMaterialPropertiesAsync(context, material, babylonMaterial); });
    };
    GLTFLoader.prototype._extensionsLoadTextureInfoAsync = function (context, textureInfo, assign) {
        return this._applyExtensions(textureInfo, function (extension) { return extension.loadTextureInfoAsync && extension.loadTextureInfoAsync(context, textureInfo, assign); });
    };
    GLTFLoader.prototype._extensionsLoadAnimationAsync = function (context, animation) {
        return this._applyExtensions(animation, function (extension) { return extension.loadAnimationAsync && extension.loadAnimationAsync(context, animation); });
    };
    GLTFLoader.prototype._extensionsLoadUriAsync = function (context, uri) {
        return this._applyExtensions({}, function (extension) { return extension._loadUriAsync && extension._loadUriAsync(context, uri); });
    };
    /**
     * 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);
    };
    /**
     * 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._DefaultSampler = { index: -1 };
    GLTFLoader._ExtensionNames = new Array();
    GLTFLoader._ExtensionFactories = {};
    return GLTFLoader;
}());
exports.GLTFLoader = GLTFLoader;
glTFFileLoader_1.GLTFFileLoader._CreateGLTF2Loader = function (parent) { return new GLTFLoader(parent); };


/***/ }),

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

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/** @hidden */
exports.__IGLTFLoaderExtension = 0; // I am here to allow dts to be created


/***/ }),

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

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/** @hidden */
exports.__IGLTFLoaderInterfacesV2 = 0; // I am here to allow dts to be created


/***/ }),

/***/ "./src/glTF/2.0/index.ts":
/*!*******************************!*\
  !*** ./src/glTF/2.0/index.ts ***!
  \*******************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

function __export(m) {
    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
}
Object.defineProperty(exports, "__esModule", { value: true });
__export(__webpack_require__(/*! ./glTFLoader */ "./src/glTF/2.0/glTFLoader.ts"));
__export(__webpack_require__(/*! ./glTFLoaderExtension */ "./src/glTF/2.0/glTFLoaderExtension.ts"));
__export(__webpack_require__(/*! ./glTFLoaderInterfaces */ "./src/glTF/2.0/glTFLoaderInterfaces.ts"));
__export(__webpack_require__(/*! ./Extensions */ "./src/glTF/2.0/Extensions/index.ts"));


/***/ }),

/***/ "./src/glTF/glTFFileLoader.ts":
/*!************************************!*\
  !*** ./src/glTF/glTFFileLoader.ts ***!
  \************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
/**
 * 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 = exports.GLTFLoaderCoordinateSystemMode || (exports.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 = exports.GLTFLoaderAnimationStartMode || (exports.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 = exports.GLTFLoaderState || (exports.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_1.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;
        /**
         * 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.
         */
        this.onMeshLoadedObservable = new babylonjs_1.Observable();
        /**
         * Observable raised when the loader creates a texture after parsing the glTF properties of the texture.
         */
        this.onTextureLoadedObservable = new babylonjs_1.Observable();
        /**
         * Observable raised when the loader creates a material after parsing the glTF properties of the material.
         */
        this.onMaterialLoadedObservable = new babylonjs_1.Observable();
        /**
         * Observable raised when the loader creates a camera after parsing the glTF properties of the camera.
         */
        this.onCameraLoadedObservable = new babylonjs_1.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_1.Observable();
        /**
         * Observable raised when an error occurs.
         */
        this.onErrorObservable = new babylonjs_1.Observable();
        /**
         * Observable raised after the loader is disposed.
         */
        this.onDisposeObservable = new babylonjs_1.Observable();
        /**
         * Observable raised after a loader extension is created.
         * Set additional options for a loader extension in this event.
         */
        this.onExtensionLoadedObservable = new babylonjs_1.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_1.Observable();
        this._loader = null;
        /**
         * Name of the loader ("gltf")
         */
        this.name = "gltf";
        /**
         * Supported file extensions of the loader (.gltf, .glb)
         */
        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: true,
        configurable: true
    });
    Object.defineProperty(GLTFFileLoader.prototype, "onMeshLoaded", {
        /**
         * Callback raised when the loader creates a mesh after parsing the glTF properties of the mesh.
         */
        set: function (callback) {
            if (this._onMeshLoadedObserver) {
                this.onMeshLoadedObservable.remove(this._onMeshLoadedObserver);
            }
            this._onMeshLoadedObserver = this.onMeshLoadedObservable.add(callback);
        },
        enumerable: true,
        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: true,
        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: true,
        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: true,
        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: true,
        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: true,
        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: true,
        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: true,
        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: true,
        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: true,
        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: true,
        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;
        }
        this._clear();
        this.onDisposeObservable.notifyObservers(undefined);
        this.onDisposeObservable.clear();
    };
    /** @hidden */
    GLTFFileLoader.prototype._clear = function () {
        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();
    };
    /**
     * Imports one or more meshes from the loaded glTF data and adds them to the scene
     * @param meshesNames a string or array of strings of the mesh names that should be loaded from the file
     * @param scene the scene the meshes should be added to
     * @param data the glTF data to load
     * @param rootUrl root url to load from
     * @param onProgress event that fires when loading progress has occured
     * @param fileName Defines the name of the file to load
     * @returns a promise containg the loaded meshes, particles, skeletons and animations
     */
    GLTFFileLoader.prototype.importMeshAsync = function (meshesNames, scene, data, rootUrl, onProgress, fileName) {
        var _this = this;
        return this._parseAsync(scene, data, rootUrl, fileName).then(function (loaderData) {
            _this._log("Loading " + (fileName || ""));
            _this._loader = _this._getLoader(loaderData);
            return _this._loader.importMeshAsync(meshesNames, scene, loaderData, rootUrl, onProgress, fileName);
        });
    };
    /**
     * Imports all objects from the loaded glTF data and adds them to the scene
     * @param scene the scene the objects should be added to
     * @param data the glTF data to load
     * @param rootUrl root url to load from
     * @param onProgress event that fires when loading progress has occured
     * @param fileName Defines the name of the file to load
     * @returns a promise which completes when objects have been loaded to the scene
     */
    GLTFFileLoader.prototype.loadAsync = function (scene, data, rootUrl, onProgress, fileName) {
        var _this = this;
        return this._parseAsync(scene, data, rootUrl, fileName).then(function (loaderData) {
            _this._log("Loading " + (fileName || ""));
            _this._loader = _this._getLoader(loaderData);
            return _this._loader.loadAsync(scene, loaderData, rootUrl, onProgress, fileName);
        });
    };
    /**
     * Load into an asset container.
     * @param scene The scene to load into
     * @param data The data to import
     * @param rootUrl The root url for scene and resources
     * @param onProgress The callback when the load progresses
     * @param fileName Defines the name of the file to load
     * @returns The loaded asset container
     */
    GLTFFileLoader.prototype.loadAssetContainerAsync = function (scene, data, rootUrl, onProgress, fileName) {
        var _this = this;
        return this._parseAsync(scene, data, rootUrl, fileName).then(function (loaderData) {
            _this._log("Loading " + (fileName || ""));
            _this._loader = _this._getLoader(loaderData);
            return _this._loader.importMeshAsync(null, scene, loaderData, rootUrl, onProgress, fileName).then(function (result) {
                var container = new babylonjs_1.AssetContainer(scene);
                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);
                container.removeAllFromScene();
                return container;
            });
        });
    };
    /**
     * If the data string can be loaded directly.
     * @param data string contianing the file data
     * @returns if the data can be loaded directly
     */
    GLTFFileLoader.prototype.canDirectLoad = function (data) {
        return ((data.indexOf("scene") !== -1) && (data.indexOf("node") !== -1));
    };
    /**
     * Instantiates a glTF file loader plugin.
     * @returns the created plugin
     */
    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: true,
        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);
            });
        });
    };
    GLTFFileLoader.prototype._parseAsync = function (scene, data, rootUrl, fileName) {
        var _this = this;
        return Promise.resolve().then(function () {
            var unpacked = (data instanceof ArrayBuffer) ? _this._unpackBinary(data) : { json: data, bin: null };
            return _this._validateAsync(scene, unpacked.json, rootUrl, fileName).then(function () {
                _this._startPerformanceCounter("Parse JSON");
                _this._log("JSON length: " + unpacked.json.length);
                var loaderData = {
                    json: JSON.parse(unpacked.json),
                    bin: unpacked.bin
                };
                _this._endPerformanceCounter("Parse JSON");
                _this.onParsedObservable.notifyObservers(loaderData);
                _this.onParsedObservable.clear();
                return loaderData;
            });
        });
    };
    GLTFFileLoader.prototype._validateAsync = function (scene, json, rootUrl, fileName) {
        var _this = this;
        if (!this.validate || typeof GLTFValidator === "undefined") {
            return Promise.resolve();
        }
        this._startPerformanceCounter("Validate JSON");
        var options = {
            externalResourceFunction: function (uri) {
                return _this.preprocessUrlAsync(rootUrl + uri)
                    .then(function (url) { return scene._loadFileAsync(url, true, true); })
                    .then(function (data) { return new Uint8Array(data); });
            }
        };
        if (fileName && fileName.substr(0, 5) !== "data:") {
            options.uri = (rootUrl === "file:" ? fileName : "" + rootUrl + fileName);
        }
        return GLTFValidator.validateString(json, options).then(function (result) {
            _this._endPerformanceCounter("Validate JSON");
            _this.onValidatedObservable.notifyObservers(result);
            _this.onValidatedObservable.clear();
        }, function (reason) {
            _this._endPerformanceCounter("Validate JSON");
            babylonjs_1.Tools.Warn("Failed to validate: " + reason);
            _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._unpackBinary = function (data) {
        this._startPerformanceCounter("Unpack binary");
        this._log("Binary length: " + data.byteLength);
        var Binary = {
            Magic: 0x46546C67
        };
        var binaryReader = new BinaryReader(data);
        var magic = binaryReader.readUint32();
        if (magic !== Binary.Magic) {
            throw new Error("Unexpected magic: " + magic);
        }
        var version = binaryReader.readUint32();
        if (this.loggingEnabled) {
            this._log("Binary version: " + version);
        }
        var unpacked;
        switch (version) {
            case 1: {
                unpacked = this._unpackBinaryV1(binaryReader);
                break;
            }
            case 2: {
                unpacked = this._unpackBinaryV2(binaryReader);
                break;
            }
            default: {
                throw new Error("Unsupported version: " + version);
            }
        }
        this._endPerformanceCounter("Unpack binary");
        return unpacked;
    };
    GLTFFileLoader.prototype._unpackBinaryV1 = function (binaryReader) {
        var ContentFormat = {
            JSON: 0
        };
        var length = binaryReader.readUint32();
        if (length != binaryReader.getLength()) {
            throw new Error("Length in header does not match actual data length: " + length + " != " + binaryReader.getLength());
        }
        var contentLength = binaryReader.readUint32();
        var contentFormat = binaryReader.readUint32();
        var content;
        switch (contentFormat) {
            case ContentFormat.JSON: {
                content = GLTFFileLoader._decodeBufferToText(binaryReader.readUint8Array(contentLength));
                break;
            }
            default: {
                throw new Error("Unexpected content format: " + contentFormat);
            }
        }
        var bytesRemaining = binaryReader.getLength() - binaryReader.getPosition();
        var body = binaryReader.readUint8Array(bytesRemaining);
        return {
            json: content,
            bin: body
        };
    };
    GLTFFileLoader.prototype._unpackBinaryV2 = function (binaryReader) {
        var ChunkFormat = {
            JSON: 0x4E4F534A,
            BIN: 0x004E4942
        };
        var length = binaryReader.readUint32();
        if (length !== binaryReader.getLength()) {
            throw new Error("Length in header does not match actual data length: " + length + " != " + binaryReader.getLength());
        }
        // JSON chunk
        var chunkLength = binaryReader.readUint32();
        var chunkFormat = binaryReader.readUint32();
        if (chunkFormat !== ChunkFormat.JSON) {
            throw new Error("First chunk format is not JSON");
        }
        var json = GLTFFileLoader._decodeBufferToText(binaryReader.readUint8Array(chunkLength));
        // Look for BIN chunk
        var bin = null;
        while (binaryReader.getPosition() < binaryReader.getLength()) {
            var chunkLength_1 = binaryReader.readUint32();
            var chunkFormat_1 = binaryReader.readUint32();
            switch (chunkFormat_1) {
                case ChunkFormat.JSON: {
                    throw new Error("Unexpected JSON chunk");
                }
                case ChunkFormat.BIN: {
                    bin = binaryReader.readUint8Array(chunkLength_1);
                    break;
                }
                default: {
                    // ignore unrecognized chunkFormat
                    binaryReader.skipBytes(chunkLength_1);
                    break;
                }
            }
        }
        return {
            json: json,
            bin: bin
        };
    };
    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;
    };
    GLTFFileLoader._decodeBufferToText = function (buffer) {
        var result = "";
        var length = buffer.byteLength;
        for (var i = 0; i < length; i++) {
            result += String.fromCharCode(buffer[i]);
        }
        return result;
    };
    /** @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_1.Tools.Log("" + spaces + message);
    };
    GLTFFileLoader.prototype._logDisabled = function (message) {
    };
    GLTFFileLoader.prototype._startPerformanceCounterEnabled = function (counterName) {
        babylonjs_1.Tools.StartPerformanceCounter(counterName);
    };
    GLTFFileLoader.prototype._startPerformanceCounterDisabled = function (counterName) {
    };
    GLTFFileLoader.prototype._endPerformanceCounterEnabled = function (counterName) {
        babylonjs_1.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._logSpaces = "                                ";
    return GLTFFileLoader;
}());
exports.GLTFFileLoader = GLTFFileLoader;
var BinaryReader = /** @class */ (function () {
    function BinaryReader(arrayBuffer) {
        this._arrayBuffer = arrayBuffer;
        this._dataView = new DataView(arrayBuffer);
        this._byteOffset = 0;
    }
    BinaryReader.prototype.getPosition = function () {
        return this._byteOffset;
    };
    BinaryReader.prototype.getLength = function () {
        return this._arrayBuffer.byteLength;
    };
    BinaryReader.prototype.readUint32 = function () {
        var value = this._dataView.getUint32(this._byteOffset, true);
        this._byteOffset += 4;
        return value;
    };
    BinaryReader.prototype.readUint8Array = function (length) {
        var value = new Uint8Array(this._arrayBuffer, this._byteOffset, length);
        this._byteOffset += length;
        return value;
    };
    BinaryReader.prototype.skipBytes = function (length) {
        this._byteOffset += length;
    };
    return BinaryReader;
}());
if (babylonjs_1.SceneLoader) {
    babylonjs_1.SceneLoader.RegisterPlugin(new GLTFFileLoader());
}


/***/ }),

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

module.exports = __WEBPACK_EXTERNAL_MODULE_babylonjs__;

/***/ })

/******/ });
});
//# sourceMappingURL=babylon.glTFFileLoader.js.map