Nightly

dist/preview release/babylon.d.ts

@@ -404,6 +404,13 @@ declare module BABYLON {
          * @returns the encoded string
          */
         static EncodeArrayBufferToBase64(buffer: ArrayBuffer | ArrayBufferView): string;
+        /**
+        * Converts a number to string and pads with preceeding zeroes until it is of specified length.
+        * @param num the number to convert and pad
+        * @param length the expected length of the string
+        * @returns the padded string
+        */
+        static PadNumber(num: number, length: number): string;
     }
 }
 declare module BABYLON {
@@ -3730,6 +3737,13 @@ declare module BABYLON {
          */
         static FromArray(array: DeepImmutable<ArrayLike<number>>, offset?: number): Quaternion;
         /**
+         * Updates the given quaternion "result" from the starting index of the given array.
+         * @param array the array to pull values from
+         * @param offset the offset into the array to start at
+         * @param result the quaternion to store the result in
+         */
+        static FromArrayToRef(array: DeepImmutable<ArrayLike<number>>, offset: number, result: Quaternion): void;
+        /**
          * Create a quaternion from Euler rotation angles
          * @param x Pitch
          * @param y Yaw
@@ -8533,6 +8547,15 @@ declare module BABYLON {
          */
         noRotationConstraint: boolean;
         /**
+         * Reverses mouselook direction to 'natural' panning as opposed to traditional direct
+         * panning
+         */
+        invertRotation: boolean;
+        /**
+         * Speed multiplier for inverse camera panning
+         */
+        inverseRotationSpeed: number;
+        /**
          * Define the current target of the camera as an object or a position.
          */
         lockedTarget: any;
@@ -50339,6 +50362,8 @@ declare module BABYLON {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         /** @hidden */
         _areTexturesDirty: boolean;
     }
@@ -50371,6 +50396,20 @@ declare module BABYLON {
          * a is a intensity
          */
         texture: Nullable<BaseTexture>;
+        private _roughness;
+        /**
+         * Defines the sheen roughness.
+         * It is not taken into account if linkSheenWithAlbedo is true.
+         * To stay backward compatible, material roughness is used instead if sheen roughness = null
+         */
+        roughness: Nullable<number>;
+        private _albedoScaling;
+        /**
+         * If true, the sheen effect is layered above the base BRDF with the albedo-scaling technique.
+         * It allows the strength of the sheen effect to not depend on the base color of the material,
+         * making it easier to setup and tweak the effect
+         */
+        albedoScaling: boolean;
         /** @hidden */
         private _internalMarkAllSubMeshesAsTexturesDirty;
         /** @hidden */
@@ -50963,6 +51002,8 @@ declare module BABYLON {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         SUBSURFACE: boolean;
         SS_REFRACTION: boolean;
         SS_TRANSLUCENCY: boolean;

dist/preview release/babylon.module.d.ts

@@ -405,6 +405,13 @@ declare module "babylonjs/Misc/stringTools" {
          * @returns the encoded string
          */
         static EncodeArrayBufferToBase64(buffer: ArrayBuffer | ArrayBufferView): string;
+        /**
+        * Converts a number to string and pads with preceeding zeroes until it is of specified length.
+        * @param num the number to convert and pad
+        * @param length the expected length of the string
+        * @returns the padded string
+        */
+        static PadNumber(num: number, length: number): string;
     }
 }
 declare module "babylonjs/Misc/deepCopier" {
@@ -3763,6 +3770,13 @@ declare module "babylonjs/Maths/math.vector" {
          */
         static FromArray(array: DeepImmutable<ArrayLike<number>>, offset?: number): Quaternion;
         /**
+         * Updates the given quaternion "result" from the starting index of the given array.
+         * @param array the array to pull values from
+         * @param offset the offset into the array to start at
+         * @param result the quaternion to store the result in
+         */
+        static FromArrayToRef(array: DeepImmutable<ArrayLike<number>>, offset: number, result: Quaternion): void;
+        /**
          * Create a quaternion from Euler rotation angles
          * @param x Pitch
          * @param y Yaw
@@ -8644,6 +8658,15 @@ declare module "babylonjs/Cameras/targetCamera" {
          */
         noRotationConstraint: boolean;
         /**
+         * Reverses mouselook direction to 'natural' panning as opposed to traditional direct
+         * panning
+         */
+        invertRotation: boolean;
+        /**
+         * Speed multiplier for inverse camera panning
+         */
+        inverseRotationSpeed: number;
+        /**
          * Define the current target of the camera as an object or a position.
          */
         lockedTarget: any;
@@ -52460,6 +52483,8 @@ declare module "babylonjs/Materials/PBR/pbrSheenConfiguration" {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         /** @hidden */
         _areTexturesDirty: boolean;
     }
@@ -52492,6 +52517,20 @@ declare module "babylonjs/Materials/PBR/pbrSheenConfiguration" {
          * a is a intensity
          */
         texture: Nullable<BaseTexture>;
+        private _roughness;
+        /**
+         * Defines the sheen roughness.
+         * It is not taken into account if linkSheenWithAlbedo is true.
+         * To stay backward compatible, material roughness is used instead if sheen roughness = null
+         */
+        roughness: Nullable<number>;
+        private _albedoScaling;
+        /**
+         * If true, the sheen effect is layered above the base BRDF with the albedo-scaling technique.
+         * It allows the strength of the sheen effect to not depend on the base color of the material,
+         * making it easier to setup and tweak the effect
+         */
+        albedoScaling: boolean;
         /** @hidden */
         private _internalMarkAllSubMeshesAsTexturesDirty;
         /** @hidden */
@@ -53167,6 +53206,8 @@ declare module "babylonjs/Materials/PBR/pbrBaseMaterial" {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         SUBSURFACE: boolean;
         SS_REFRACTION: boolean;
         SS_TRANSLUCENCY: boolean;
@@ -73817,6 +73858,13 @@ declare module BABYLON {
          * @returns the encoded string
          */
         static EncodeArrayBufferToBase64(buffer: ArrayBuffer | ArrayBufferView): string;
+        /**
+        * Converts a number to string and pads with preceeding zeroes until it is of specified length.
+        * @param num the number to convert and pad
+        * @param length the expected length of the string
+        * @returns the padded string
+        */
+        static PadNumber(num: number, length: number): string;
     }
 }
 declare module BABYLON {
@@ -77143,6 +77191,13 @@ declare module BABYLON {
          */
         static FromArray(array: DeepImmutable<ArrayLike<number>>, offset?: number): Quaternion;
         /**
+         * Updates the given quaternion "result" from the starting index of the given array.
+         * @param array the array to pull values from
+         * @param offset the offset into the array to start at
+         * @param result the quaternion to store the result in
+         */
+        static FromArrayToRef(array: DeepImmutable<ArrayLike<number>>, offset: number, result: Quaternion): void;
+        /**
          * Create a quaternion from Euler rotation angles
          * @param x Pitch
          * @param y Yaw
@@ -81946,6 +82001,15 @@ declare module BABYLON {
          */
         noRotationConstraint: boolean;
         /**
+         * Reverses mouselook direction to 'natural' panning as opposed to traditional direct
+         * panning
+         */
+        invertRotation: boolean;
+        /**
+         * Speed multiplier for inverse camera panning
+         */
+        inverseRotationSpeed: number;
+        /**
          * Define the current target of the camera as an object or a position.
          */
         lockedTarget: any;
@@ -123752,6 +123816,8 @@ declare module BABYLON {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         /** @hidden */
         _areTexturesDirty: boolean;
     }
@@ -123784,6 +123850,20 @@ declare module BABYLON {
          * a is a intensity
          */
         texture: Nullable<BaseTexture>;
+        private _roughness;
+        /**
+         * Defines the sheen roughness.
+         * It is not taken into account if linkSheenWithAlbedo is true.
+         * To stay backward compatible, material roughness is used instead if sheen roughness = null
+         */
+        roughness: Nullable<number>;
+        private _albedoScaling;
+        /**
+         * If true, the sheen effect is layered above the base BRDF with the albedo-scaling technique.
+         * It allows the strength of the sheen effect to not depend on the base color of the material,
+         * making it easier to setup and tweak the effect
+         */
+        albedoScaling: boolean;
         /** @hidden */
         private _internalMarkAllSubMeshesAsTexturesDirty;
         /** @hidden */
@@ -124376,6 +124456,8 @@ declare module BABYLON {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         SUBSURFACE: boolean;
         SS_REFRACTION: boolean;
         SS_TRANSLUCENCY: boolean;

dist/preview release/documentation.d.ts

@@ -404,6 +404,13 @@ declare module BABYLON {
          * @returns the encoded string
          */
         static EncodeArrayBufferToBase64(buffer: ArrayBuffer | ArrayBufferView): string;
+        /**
+        * Converts a number to string and pads with preceeding zeroes until it is of specified length.
+        * @param num the number to convert and pad
+        * @param length the expected length of the string
+        * @returns the padded string
+        */
+        static PadNumber(num: number, length: number): string;
     }
 }
 declare module BABYLON {
@@ -3730,6 +3737,13 @@ declare module BABYLON {
          */
         static FromArray(array: DeepImmutable<ArrayLike<number>>, offset?: number): Quaternion;
         /**
+         * Updates the given quaternion "result" from the starting index of the given array.
+         * @param array the array to pull values from
+         * @param offset the offset into the array to start at
+         * @param result the quaternion to store the result in
+         */
+        static FromArrayToRef(array: DeepImmutable<ArrayLike<number>>, offset: number, result: Quaternion): void;
+        /**
          * Create a quaternion from Euler rotation angles
          * @param x Pitch
          * @param y Yaw
@@ -8533,6 +8547,15 @@ declare module BABYLON {
          */
         noRotationConstraint: boolean;
         /**
+         * Reverses mouselook direction to 'natural' panning as opposed to traditional direct
+         * panning
+         */
+        invertRotation: boolean;
+        /**
+         * Speed multiplier for inverse camera panning
+         */
+        inverseRotationSpeed: number;
+        /**
          * Define the current target of the camera as an object or a position.
          */
         lockedTarget: any;
@@ -50339,6 +50362,8 @@ declare module BABYLON {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         /** @hidden */
         _areTexturesDirty: boolean;
     }
@@ -50371,6 +50396,20 @@ declare module BABYLON {
          * a is a intensity
          */
         texture: Nullable<BaseTexture>;
+        private _roughness;
+        /**
+         * Defines the sheen roughness.
+         * It is not taken into account if linkSheenWithAlbedo is true.
+         * To stay backward compatible, material roughness is used instead if sheen roughness = null
+         */
+        roughness: Nullable<number>;
+        private _albedoScaling;
+        /**
+         * If true, the sheen effect is layered above the base BRDF with the albedo-scaling technique.
+         * It allows the strength of the sheen effect to not depend on the base color of the material,
+         * making it easier to setup and tweak the effect
+         */
+        albedoScaling: boolean;
         /** @hidden */
         private _internalMarkAllSubMeshesAsTexturesDirty;
         /** @hidden */
@@ -50963,6 +51002,8 @@ declare module BABYLON {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         SUBSURFACE: boolean;
         SS_REFRACTION: boolean;
         SS_TRANSLUCENCY: boolean;
@@ -75795,7 +75836,8 @@ declare module BABYLON.GLTF2 {
          */
         loadBufferViewAsync(context: string, bufferView: IBufferView): Promise<ArrayBufferView>;
         private _loadAccessorAsync;
-        private _loadFloatAccessorAsync;
+        /** @hidden */
+        _loadFloatAccessorAsync(context: string, accessor: IAccessor): Promise<Float32Array>;
         private _loadIndicesAccessorAsync;
         private _loadVertexBufferViewAsync;
         private _loadVertexAccessorAsync;
@@ -76170,6 +76212,30 @@ declare module BABYLON.GLTF2.Loader.Extensions {
 }
 declare module BABYLON.GLTF2.Loader.Extensions {
     /**
+     * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
+     * [Playground Sample](//TODO)
+     * !!! Experimental Extension Subject to Changes !!!
+     */
+    export class KHR_mesh_instancing implements IGLTFLoaderExtension {
+        /**
+         * The name of this extension.
+         */
+        readonly name: string;
+        /**
+         * Defines whether this extension is enabled.
+         */
+        enabled: boolean;
+        private _loader;
+        /** @hidden */
+        constructor(loader: GLTFLoader);
+        /** @hidden */
+        dispose(): void;
+        /** @hidden */
+        loadNodeAsync(context: string, node: INode, assign: (babylonTransformNode: TransformNode) => void): Nullable<Promise<TransformNode>>;
+    }
+}
+declare module BABYLON.GLTF2.Loader.Extensions {
+    /**
      * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization)
      */
     export class KHR_mesh_quantization implements IGLTFLoaderExtension {

dist/preview release/inspector/babylon.inspector.bundle.max.js

@@ -45593,6 +45593,7 @@ var PBRMaterialPropertyGridComponent = /** @class */ (function (_super) {
     };
     PBRMaterialPropertyGridComponent.prototype.render = function () {
         var _this = this;
+        var _a, _b, _c;
         var material = this.props.material;
         var debugMode = [
             { label: "None", value: 0 },
@@ -45656,6 +45657,12 @@ var PBRMaterialPropertyGridComponent = /** @class */ (function (_super) {
             { label: "Luminance Over Alpha", value: 86 },
             { label: "Alpha", value: 87 },
         ];
+        material.sheen._useRoughness = (_a = material.sheen._useRoughness, (_a !== null && _a !== void 0 ? _a : material.sheen.roughness !== null));
+        material.sheen.roughness = (_c = (_b = material.sheen.roughness, (_b !== null && _b !== void 0 ? _b : material.sheen._saveRoughness)), (_c !== null && _c !== void 0 ? _c : 0));
+        if (!material.sheen._useRoughness) {
+            material.sheen._saveRoughness = material.sheen.roughness;
+            material.sheen.roughness = null;
+        }
         return (react__WEBPACK_IMPORTED_MODULE_1__["createElement"]("div", { className: "pane" },
             react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_commonMaterialPropertyGridComponent__WEBPACK_IMPORTED_MODULE_9__["CommonMaterialPropertyGridComponent"], { globalState: this.props.globalState, lockObject: this.props.lockObject, material: material, onPropertyChangedObservable: this.props.onPropertyChangedObservable }),
             this.renderTextures(this._onDebugSelectionChangeObservable),
@@ -45705,7 +45712,11 @@ var PBRMaterialPropertyGridComponent = /** @class */ (function (_super) {
                         react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_checkBoxLineComponent__WEBPACK_IMPORTED_MODULE_5__["CheckBoxLineComponent"], { label: "Link to Albedo", target: material.sheen, propertyName: "linkSheenWithAlbedo", onPropertyChangedObservable: this.props.onPropertyChangedObservable }),
                         react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_sliderLineComponent__WEBPACK_IMPORTED_MODULE_7__["SliderLineComponent"], { label: "Intensity", target: material.sheen, propertyName: "intensity", minimum: 0, maximum: 1, step: 0.01, onPropertyChangedObservable: this.props.onPropertyChangedObservable }),
                         react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_color3LineComponent__WEBPACK_IMPORTED_MODULE_4__["Color3LineComponent"], { label: "Color", target: material.sheen, propertyName: "color", onPropertyChangedObservable: this.props.onPropertyChangedObservable }),
-                        react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_textureLinkLineComponent__WEBPACK_IMPORTED_MODULE_10__["TextureLinkLineComponent"], { label: "Texture", texture: material.sheen.texture, material: material, onSelectionChangedObservable: this.props.onSelectionChangedObservable, onDebugSelectionChangeObservable: this._onDebugSelectionChangeObservable }))),
+                        react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_textureLinkLineComponent__WEBPACK_IMPORTED_MODULE_10__["TextureLinkLineComponent"], { label: "Texture", texture: material.sheen.texture, material: material, onSelectionChangedObservable: this.props.onSelectionChangedObservable, onDebugSelectionChangeObservable: this._onDebugSelectionChangeObservable }),
+                        react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_checkBoxLineComponent__WEBPACK_IMPORTED_MODULE_5__["CheckBoxLineComponent"], { label: "Use roughness", target: material.sheen, propertyName: "_useRoughness" }),
+                        material.sheen._useRoughness &&
+                            react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_sliderLineComponent__WEBPACK_IMPORTED_MODULE_7__["SliderLineComponent"], { label: "Roughness", target: material.sheen, propertyName: "roughness", minimum: 0, maximum: 1, step: 0.01, onPropertyChangedObservable: this.props.onPropertyChangedObservable }),
+                        react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_checkBoxLineComponent__WEBPACK_IMPORTED_MODULE_5__["CheckBoxLineComponent"], { label: "Albedo scaling", target: material.sheen, propertyName: "albedoScaling", onPropertyChangedObservable: this.props.onPropertyChangedObservable }))),
             react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lineContainerComponent__WEBPACK_IMPORTED_MODULE_3__["LineContainerComponent"], { globalState: this.props.globalState, title: "SUBSURFACE" },
                 react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_textureLinkLineComponent__WEBPACK_IMPORTED_MODULE_10__["TextureLinkLineComponent"], { label: "Thickness", texture: material.subSurface.thicknessTexture, material: material, onSelectionChangedObservable: this.props.onSelectionChangedObservable, onDebugSelectionChangeObservable: this._onDebugSelectionChangeObservable }),
                 react__WEBPACK_IMPORTED_MODULE_1__["createElement"](_lines_sliderLineComponent__WEBPACK_IMPORTED_MODULE_7__["SliderLineComponent"], { label: "Min Thickness", target: material.subSurface, propertyName: "minimumThickness", minimum: 0, maximum: 10, step: 0.1, onPropertyChangedObservable: this.props.onPropertyChangedObservable }),

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

@@ -777,6 +777,13 @@ var KHR_materials_sheen = /** @class */ (function () {
                 babylonMaterial.sheen.texture = texture;
             }));
         }
+        if (properties.roughnessFactor !== undefined) {
+            babylonMaterial.sheen.roughness = properties.roughnessFactor;
+        }
+        else {
+            babylonMaterial.sheen.roughness = 0;
+        }
+        babylonMaterial.sheen.albedoScaling = true;
         return Promise.all(promises).then(function () { });
     };
     return KHR_materials_sheen;
@@ -939,6 +946,113 @@ _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, f
 
 /***/ }),
 
+/***/ "./glTF/2.0/Extensions/KHR_mesh_instancing.ts":
+/*!****************************************************!*\
+  !*** ./glTF/2.0/Extensions/KHR_mesh_instancing.ts ***!
+  \****************************************************/
+/*! exports provided: KHR_mesh_instancing */
+/***/ (function(module, __webpack_exports__, __webpack_require__) {
+
+"use strict";
+__webpack_require__.r(__webpack_exports__);
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_instancing", function() { return KHR_mesh_instancing; });
+/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Maths/math.vector */ "babylonjs/Misc/tools");
+/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");
+
+
+
+var NAME = "KHR_mesh_instancing";
+/**
+ * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
+ * [Playground Sample](//TODO)
+ * !!! Experimental Extension Subject to Changes !!!
+ */
+var KHR_mesh_instancing = /** @class */ (function () {
+    /** @hidden */
+    function KHR_mesh_instancing(loader) {
+        /**
+         * The name of this extension.
+         */
+        this.name = NAME;
+        this._loader = loader;
+        this.enabled = this._loader.isExtensionUsed(NAME);
+    }
+    /** @hidden */
+    KHR_mesh_instancing.prototype.dispose = function () {
+        delete this._loader;
+    };
+    /** @hidden */
+    KHR_mesh_instancing.prototype.loadNodeAsync = function (context, node, assign) {
+        var _this = this;
+        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, node, this.name, function (extensionContext, extension) {
+            return _this._loader.loadNodeAsync("#/nodes/" + node.index, node, function (babylonTransformNode) {
+                var promises = new Array();
+                var instanceCount = null;
+                var loadAttribute = function (attribute, assignBufferFunc) {
+                    if (extension.attributes[attribute] == undefined) {
+                        return;
+                    }
+                    var accessor = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(extensionContext + "/attributes/" + attribute, _this._loader.gltf.accessors, extension.attributes[attribute]);
+                    if (instanceCount === null) {
+                        instanceCount = accessor.count;
+                    }
+                    else if (instanceCount !== accessor.count) {
+                        throw new Error(extensionContext + "/attributes: Instance buffer accessors do not have the same count.");
+                    }
+                    promises.push(_this._loader._loadFloatAccessorAsync("/accessors/" + accessor.bufferView, accessor).then(function (data) {
+                        assignBufferFunc(data);
+                    }));
+                };
+                var translationBuffer = null;
+                var rotationBuffer = null;
+                var scaleBuffer = null;
+                loadAttribute("TRANSLATION", function (data) { translationBuffer = data; });
+                loadAttribute("ROTATION", function (data) { rotationBuffer = data; });
+                loadAttribute("SCALE", function (data) { scaleBuffer = data; });
+                return Promise.all(promises).then(function () {
+                    if (instanceCount) {
+                        var instanceName = "";
+                        var instance = null;
+                        var digitLength = instanceCount.toString().length;
+                        for (var i = 0; i < instanceCount; ++i) {
+                            if (node._primitiveBabylonMeshes) {
+                                for (var j = 0; j < node._primitiveBabylonMeshes.length; ++j) {
+                                    var babylonMeshPrimitive = node._primitiveBabylonMeshes[j];
+                                    instanceName = (babylonMeshPrimitive.name || babylonMeshPrimitive.id) + "_" + babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["StringTools"].PadNumber(i, digitLength);
+                                    if (babylonMeshPrimitive.isAnInstance) {
+                                        instance = babylonMeshPrimitive.sourceMesh.createInstance(instanceName);
+                                    }
+                                    else if (babylonMeshPrimitive.createInstance) {
+                                        instance = babylonMeshPrimitive.createInstance(instanceName);
+                                    }
+                                    if (instance) {
+                                        instance.setParent(babylonMeshPrimitive);
+                                        translationBuffer ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArrayToRef(translationBuffer, i * 3, instance.position)
+                                            : instance.position.set(0, 0, 0);
+                                        rotationBuffer ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].FromArrayToRef(rotationBuffer, i * 4, instance.rotationQuaternion)
+                                            : instance.rotationQuaternion.set(0, 0, 0, 1);
+                                        scaleBuffer ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArrayToRef(scaleBuffer, i * 3, instance.scaling)
+                                            : instance.scaling.set(1, 1, 1);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    assign(babylonTransformNode);
+                    return babylonTransformNode;
+                });
+            });
+        });
+    };
+    return KHR_mesh_instancing;
+}());
+
+_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_mesh_instancing(loader); });
+
+
+/***/ }),
+
 /***/ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts":
 /*!******************************************************!*\
   !*** ./glTF/2.0/Extensions/KHR_mesh_quantization.ts ***!
@@ -1778,7 +1892,7 @@ _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, f
 /*!**************************************!*\
   !*** ./glTF/2.0/Extensions/index.ts ***!
   \**************************************/
-/*! exports provided: EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
+/*! exports provided: EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_instancing, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
 /***/ (function(module, __webpack_exports__, __webpack_require__) {
 
 "use strict";
@@ -1807,29 +1921,32 @@ __webpack_require__.r(__webpack_exports__);
 /* harmony import */ var _KHR_materials_specular__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./KHR_materials_specular */ "./glTF/2.0/Extensions/KHR_materials_specular.ts");
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_specular", function() { return _KHR_materials_specular__WEBPACK_IMPORTED_MODULE_7__["KHR_materials_specular"]; });
 
-/* harmony import */ var _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./KHR_mesh_quantization */ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_8__["KHR_mesh_quantization"]; });
+/* harmony import */ var _KHR_mesh_instancing__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./KHR_mesh_instancing */ "./glTF/2.0/Extensions/KHR_mesh_instancing.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_instancing", function() { return _KHR_mesh_instancing__WEBPACK_IMPORTED_MODULE_8__["KHR_mesh_instancing"]; });
+
+/* harmony import */ var _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./KHR_mesh_quantization */ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_9__["KHR_mesh_quantization"]; });
 
-/* harmony import */ var _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./KHR_texture_basisu */ "./glTF/2.0/Extensions/KHR_texture_basisu.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_9__["KHR_texture_basisu"]; });
+/* harmony import */ var _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./KHR_texture_basisu */ "./glTF/2.0/Extensions/KHR_texture_basisu.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_10__["KHR_texture_basisu"]; });
 
-/* harmony import */ var _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./KHR_texture_transform */ "./glTF/2.0/Extensions/KHR_texture_transform.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_transform", function() { return _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_10__["KHR_texture_transform"]; });
+/* harmony import */ var _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./KHR_texture_transform */ "./glTF/2.0/Extensions/KHR_texture_transform.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_transform", function() { return _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_11__["KHR_texture_transform"]; });
 
-/* harmony import */ var _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./MSFT_audio_emitter */ "./glTF/2.0/Extensions/MSFT_audio_emitter.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_audio_emitter", function() { return _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_11__["MSFT_audio_emitter"]; });
+/* harmony import */ var _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./MSFT_audio_emitter */ "./glTF/2.0/Extensions/MSFT_audio_emitter.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_audio_emitter", function() { return _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_12__["MSFT_audio_emitter"]; });
 
-/* harmony import */ var _MSFT_lod__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./MSFT_lod */ "./glTF/2.0/Extensions/MSFT_lod.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_lod", function() { return _MSFT_lod__WEBPACK_IMPORTED_MODULE_12__["MSFT_lod"]; });
+/* harmony import */ var _MSFT_lod__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./MSFT_lod */ "./glTF/2.0/Extensions/MSFT_lod.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_lod", function() { return _MSFT_lod__WEBPACK_IMPORTED_MODULE_13__["MSFT_lod"]; });
 
-/* harmony import */ var _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./MSFT_minecraftMesh */ "./glTF/2.0/Extensions/MSFT_minecraftMesh.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_minecraftMesh", function() { return _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_13__["MSFT_minecraftMesh"]; });
+/* harmony import */ var _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./MSFT_minecraftMesh */ "./glTF/2.0/Extensions/MSFT_minecraftMesh.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_minecraftMesh", function() { return _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_14__["MSFT_minecraftMesh"]; });
 
-/* harmony import */ var _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./MSFT_sRGBFactors */ "./glTF/2.0/Extensions/MSFT_sRGBFactors.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_sRGBFactors", function() { return _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_14__["MSFT_sRGBFactors"]; });
+/* harmony import */ var _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./MSFT_sRGBFactors */ "./glTF/2.0/Extensions/MSFT_sRGBFactors.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_sRGBFactors", function() { return _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_15__["MSFT_sRGBFactors"]; });
 
-/* harmony import */ var _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./ExtrasAsMetadata */ "./glTF/2.0/Extensions/ExtrasAsMetadata.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "ExtrasAsMetadata", function() { return _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_15__["ExtrasAsMetadata"]; });
+/* harmony import */ var _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_16__ = __webpack_require__(/*! ./ExtrasAsMetadata */ "./glTF/2.0/Extensions/ExtrasAsMetadata.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "ExtrasAsMetadata", function() { return _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_16__["ExtrasAsMetadata"]; });
 
 
 
@@ -1847,6 +1964,7 @@ __webpack_require__.r(__webpack_exports__);
 
 
 
+
 
 
 /***/ }),
@@ -3210,6 +3328,7 @@ var GLTFLoader = /** @class */ (function () {
         }
         return accessor._data;
     };
+    /** @hidden */
     GLTFLoader.prototype._loadFloatAccessorAsync = function (context, accessor) {
         return this._loadAccessorAsync(context, accessor, Float32Array);
     };
@@ -4007,7 +4126,7 @@ _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFFileLoader"]._CreateGLTF2Loade
 /*!***************************!*\
   !*** ./glTF/2.0/index.ts ***!
   \***************************/
-/*! exports provided: ArrayItem, GLTFLoader, EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
+/*! exports provided: ArrayItem, GLTFLoader, EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_instancing, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
 /***/ (function(module, __webpack_exports__, __webpack_require__) {
 
 "use strict";
@@ -4034,6 +4153,8 @@ __webpack_require__.r(__webpack_exports__);
 
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_specular", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_materials_specular"]; });
 
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_instancing", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_mesh_instancing"]; });
+
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_mesh_quantization"]; });
 
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_texture_basisu"]; });

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

@@ -3357,6 +3357,13 @@ var KHR_materials_sheen = /** @class */ (function () {
                 babylonMaterial.sheen.texture = texture;
             }));
         }
+        if (properties.roughnessFactor !== undefined) {
+            babylonMaterial.sheen.roughness = properties.roughnessFactor;
+        }
+        else {
+            babylonMaterial.sheen.roughness = 0;
+        }
+        babylonMaterial.sheen.albedoScaling = true;
         return Promise.all(promises).then(function () { });
     };
     return KHR_materials_sheen;
@@ -3519,6 +3526,113 @@ _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, f
 
 /***/ }),
 
+/***/ "./glTF/2.0/Extensions/KHR_mesh_instancing.ts":
+/*!****************************************************!*\
+  !*** ./glTF/2.0/Extensions/KHR_mesh_instancing.ts ***!
+  \****************************************************/
+/*! exports provided: KHR_mesh_instancing */
+/***/ (function(module, __webpack_exports__, __webpack_require__) {
+
+"use strict";
+__webpack_require__.r(__webpack_exports__);
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_instancing", function() { return KHR_mesh_instancing; });
+/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Maths/math.vector */ "babylonjs/Misc/tools");
+/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");
+
+
+
+var NAME = "KHR_mesh_instancing";
+/**
+ * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
+ * [Playground Sample](//TODO)
+ * !!! Experimental Extension Subject to Changes !!!
+ */
+var KHR_mesh_instancing = /** @class */ (function () {
+    /** @hidden */
+    function KHR_mesh_instancing(loader) {
+        /**
+         * The name of this extension.
+         */
+        this.name = NAME;
+        this._loader = loader;
+        this.enabled = this._loader.isExtensionUsed(NAME);
+    }
+    /** @hidden */
+    KHR_mesh_instancing.prototype.dispose = function () {
+        delete this._loader;
+    };
+    /** @hidden */
+    KHR_mesh_instancing.prototype.loadNodeAsync = function (context, node, assign) {
+        var _this = this;
+        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, node, this.name, function (extensionContext, extension) {
+            return _this._loader.loadNodeAsync("#/nodes/" + node.index, node, function (babylonTransformNode) {
+                var promises = new Array();
+                var instanceCount = null;
+                var loadAttribute = function (attribute, assignBufferFunc) {
+                    if (extension.attributes[attribute] == undefined) {
+                        return;
+                    }
+                    var accessor = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(extensionContext + "/attributes/" + attribute, _this._loader.gltf.accessors, extension.attributes[attribute]);
+                    if (instanceCount === null) {
+                        instanceCount = accessor.count;
+                    }
+                    else if (instanceCount !== accessor.count) {
+                        throw new Error(extensionContext + "/attributes: Instance buffer accessors do not have the same count.");
+                    }
+                    promises.push(_this._loader._loadFloatAccessorAsync("/accessors/" + accessor.bufferView, accessor).then(function (data) {
+                        assignBufferFunc(data);
+                    }));
+                };
+                var translationBuffer = null;
+                var rotationBuffer = null;
+                var scaleBuffer = null;
+                loadAttribute("TRANSLATION", function (data) { translationBuffer = data; });
+                loadAttribute("ROTATION", function (data) { rotationBuffer = data; });
+                loadAttribute("SCALE", function (data) { scaleBuffer = data; });
+                return Promise.all(promises).then(function () {
+                    if (instanceCount) {
+                        var instanceName = "";
+                        var instance = null;
+                        var digitLength = instanceCount.toString().length;
+                        for (var i = 0; i < instanceCount; ++i) {
+                            if (node._primitiveBabylonMeshes) {
+                                for (var j = 0; j < node._primitiveBabylonMeshes.length; ++j) {
+                                    var babylonMeshPrimitive = node._primitiveBabylonMeshes[j];
+                                    instanceName = (babylonMeshPrimitive.name || babylonMeshPrimitive.id) + "_" + babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["StringTools"].PadNumber(i, digitLength);
+                                    if (babylonMeshPrimitive.isAnInstance) {
+                                        instance = babylonMeshPrimitive.sourceMesh.createInstance(instanceName);
+                                    }
+                                    else if (babylonMeshPrimitive.createInstance) {
+                                        instance = babylonMeshPrimitive.createInstance(instanceName);
+                                    }
+                                    if (instance) {
+                                        instance.setParent(babylonMeshPrimitive);
+                                        translationBuffer ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArrayToRef(translationBuffer, i * 3, instance.position)
+                                            : instance.position.set(0, 0, 0);
+                                        rotationBuffer ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].FromArrayToRef(rotationBuffer, i * 4, instance.rotationQuaternion)
+                                            : instance.rotationQuaternion.set(0, 0, 0, 1);
+                                        scaleBuffer ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArrayToRef(scaleBuffer, i * 3, instance.scaling)
+                                            : instance.scaling.set(1, 1, 1);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    assign(babylonTransformNode);
+                    return babylonTransformNode;
+                });
+            });
+        });
+    };
+    return KHR_mesh_instancing;
+}());
+
+_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_mesh_instancing(loader); });
+
+
+/***/ }),
+
 /***/ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts":
 /*!******************************************************!*\
   !*** ./glTF/2.0/Extensions/KHR_mesh_quantization.ts ***!
@@ -4358,7 +4472,7 @@ _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, f
 /*!**************************************!*\
   !*** ./glTF/2.0/Extensions/index.ts ***!
   \**************************************/
-/*! exports provided: EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
+/*! exports provided: EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_instancing, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
 /***/ (function(module, __webpack_exports__, __webpack_require__) {
 
 "use strict";
@@ -4387,29 +4501,32 @@ __webpack_require__.r(__webpack_exports__);
 /* harmony import */ var _KHR_materials_specular__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./KHR_materials_specular */ "./glTF/2.0/Extensions/KHR_materials_specular.ts");
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_specular", function() { return _KHR_materials_specular__WEBPACK_IMPORTED_MODULE_7__["KHR_materials_specular"]; });
 
-/* harmony import */ var _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./KHR_mesh_quantization */ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_8__["KHR_mesh_quantization"]; });
+/* harmony import */ var _KHR_mesh_instancing__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./KHR_mesh_instancing */ "./glTF/2.0/Extensions/KHR_mesh_instancing.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_instancing", function() { return _KHR_mesh_instancing__WEBPACK_IMPORTED_MODULE_8__["KHR_mesh_instancing"]; });
+
+/* harmony import */ var _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./KHR_mesh_quantization */ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_9__["KHR_mesh_quantization"]; });
 
-/* harmony import */ var _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./KHR_texture_basisu */ "./glTF/2.0/Extensions/KHR_texture_basisu.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_9__["KHR_texture_basisu"]; });
+/* harmony import */ var _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./KHR_texture_basisu */ "./glTF/2.0/Extensions/KHR_texture_basisu.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_10__["KHR_texture_basisu"]; });
 
-/* harmony import */ var _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./KHR_texture_transform */ "./glTF/2.0/Extensions/KHR_texture_transform.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_transform", function() { return _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_10__["KHR_texture_transform"]; });
+/* harmony import */ var _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./KHR_texture_transform */ "./glTF/2.0/Extensions/KHR_texture_transform.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_transform", function() { return _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_11__["KHR_texture_transform"]; });
 
-/* harmony import */ var _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./MSFT_audio_emitter */ "./glTF/2.0/Extensions/MSFT_audio_emitter.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_audio_emitter", function() { return _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_11__["MSFT_audio_emitter"]; });
+/* harmony import */ var _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./MSFT_audio_emitter */ "./glTF/2.0/Extensions/MSFT_audio_emitter.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_audio_emitter", function() { return _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_12__["MSFT_audio_emitter"]; });
 
-/* harmony import */ var _MSFT_lod__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./MSFT_lod */ "./glTF/2.0/Extensions/MSFT_lod.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_lod", function() { return _MSFT_lod__WEBPACK_IMPORTED_MODULE_12__["MSFT_lod"]; });
+/* harmony import */ var _MSFT_lod__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./MSFT_lod */ "./glTF/2.0/Extensions/MSFT_lod.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_lod", function() { return _MSFT_lod__WEBPACK_IMPORTED_MODULE_13__["MSFT_lod"]; });
 
-/* harmony import */ var _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./MSFT_minecraftMesh */ "./glTF/2.0/Extensions/MSFT_minecraftMesh.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_minecraftMesh", function() { return _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_13__["MSFT_minecraftMesh"]; });
+/* harmony import */ var _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./MSFT_minecraftMesh */ "./glTF/2.0/Extensions/MSFT_minecraftMesh.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_minecraftMesh", function() { return _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_14__["MSFT_minecraftMesh"]; });
 
-/* harmony import */ var _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./MSFT_sRGBFactors */ "./glTF/2.0/Extensions/MSFT_sRGBFactors.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_sRGBFactors", function() { return _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_14__["MSFT_sRGBFactors"]; });
+/* harmony import */ var _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./MSFT_sRGBFactors */ "./glTF/2.0/Extensions/MSFT_sRGBFactors.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_sRGBFactors", function() { return _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_15__["MSFT_sRGBFactors"]; });
 
-/* harmony import */ var _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./ExtrasAsMetadata */ "./glTF/2.0/Extensions/ExtrasAsMetadata.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "ExtrasAsMetadata", function() { return _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_15__["ExtrasAsMetadata"]; });
+/* harmony import */ var _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_16__ = __webpack_require__(/*! ./ExtrasAsMetadata */ "./glTF/2.0/Extensions/ExtrasAsMetadata.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "ExtrasAsMetadata", function() { return _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_16__["ExtrasAsMetadata"]; });
 
 
 
@@ -4427,6 +4544,7 @@ __webpack_require__.r(__webpack_exports__);
 
 
 
+
 
 
 /***/ }),
@@ -5790,6 +5908,7 @@ var GLTFLoader = /** @class */ (function () {
         }
         return accessor._data;
     };
+    /** @hidden */
     GLTFLoader.prototype._loadFloatAccessorAsync = function (context, accessor) {
         return this._loadAccessorAsync(context, accessor, Float32Array);
     };
@@ -6587,7 +6706,7 @@ _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFFileLoader"]._CreateGLTF2Loade
 /*!***************************!*\
   !*** ./glTF/2.0/index.ts ***!
   \***************************/
-/*! exports provided: ArrayItem, GLTFLoader, EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
+/*! exports provided: ArrayItem, GLTFLoader, EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_instancing, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
 /***/ (function(module, __webpack_exports__, __webpack_require__) {
 
 "use strict";
@@ -6614,6 +6733,8 @@ __webpack_require__.r(__webpack_exports__);
 
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_specular", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_materials_specular"]; });
 
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_instancing", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_mesh_instancing"]; });
+
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_mesh_quantization"]; });
 
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_texture_basisu"]; });

dist/preview release/loaders/babylonjs.loaders.d.ts

@@ -1479,7 +1479,8 @@ declare module BABYLON.GLTF2 {
          */
         loadBufferViewAsync(context: string, bufferView: IBufferView): Promise<ArrayBufferView>;
         private _loadAccessorAsync;
-        private _loadFloatAccessorAsync;
+        /** @hidden */
+        _loadFloatAccessorAsync(context: string, accessor: IAccessor): Promise<Float32Array>;
         private _loadIndicesAccessorAsync;
         private _loadVertexBufferViewAsync;
         private _loadVertexAccessorAsync;
@@ -1854,6 +1855,30 @@ declare module BABYLON.GLTF2.Loader.Extensions {
 }
 declare module BABYLON.GLTF2.Loader.Extensions {
     /**
+     * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
+     * [Playground Sample](//TODO)
+     * !!! Experimental Extension Subject to Changes !!!
+     */
+    export class KHR_mesh_instancing implements IGLTFLoaderExtension {
+        /**
+         * The name of this extension.
+         */
+        readonly name: string;
+        /**
+         * Defines whether this extension is enabled.
+         */
+        enabled: boolean;
+        private _loader;
+        /** @hidden */
+        constructor(loader: GLTFLoader);
+        /** @hidden */
+        dispose(): void;
+        /** @hidden */
+        loadNodeAsync(context: string, node: INode, assign: (babylonTransformNode: TransformNode) => void): Nullable<Promise<TransformNode>>;
+    }
+}
+declare module BABYLON.GLTF2.Loader.Extensions {
+    /**
      * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization)
      */
     export class KHR_mesh_quantization implements IGLTFLoaderExtension {

dist/preview release/loaders/babylonjs.loaders.js

@@ -4737,6 +4737,13 @@ var KHR_materials_sheen = /** @class */ (function () {
                 babylonMaterial.sheen.texture = texture;
             }));
         }
+        if (properties.roughnessFactor !== undefined) {
+            babylonMaterial.sheen.roughness = properties.roughnessFactor;
+        }
+        else {
+            babylonMaterial.sheen.roughness = 0;
+        }
+        babylonMaterial.sheen.albedoScaling = true;
         return Promise.all(promises).then(function () { });
     };
     return KHR_materials_sheen;
@@ -4899,6 +4906,113 @@ _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, f
 
 /***/ }),
 
+/***/ "./glTF/2.0/Extensions/KHR_mesh_instancing.ts":
+/*!****************************************************!*\
+  !*** ./glTF/2.0/Extensions/KHR_mesh_instancing.ts ***!
+  \****************************************************/
+/*! exports provided: KHR_mesh_instancing */
+/***/ (function(module, __webpack_exports__, __webpack_require__) {
+
+"use strict";
+__webpack_require__.r(__webpack_exports__);
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_instancing", function() { return KHR_mesh_instancing; });
+/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! babylonjs/Maths/math.vector */ "babylonjs/Misc/tools");
+/* harmony import */ var babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _glTFLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../glTFLoader */ "./glTF/2.0/glTFLoader.ts");
+
+
+
+var NAME = "KHR_mesh_instancing";
+/**
+ * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
+ * [Playground Sample](//TODO)
+ * !!! Experimental Extension Subject to Changes !!!
+ */
+var KHR_mesh_instancing = /** @class */ (function () {
+    /** @hidden */
+    function KHR_mesh_instancing(loader) {
+        /**
+         * The name of this extension.
+         */
+        this.name = NAME;
+        this._loader = loader;
+        this.enabled = this._loader.isExtensionUsed(NAME);
+    }
+    /** @hidden */
+    KHR_mesh_instancing.prototype.dispose = function () {
+        delete this._loader;
+    };
+    /** @hidden */
+    KHR_mesh_instancing.prototype.loadNodeAsync = function (context, node, assign) {
+        var _this = this;
+        return _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].LoadExtensionAsync(context, node, this.name, function (extensionContext, extension) {
+            return _this._loader.loadNodeAsync("#/nodes/" + node.index, node, function (babylonTransformNode) {
+                var promises = new Array();
+                var instanceCount = null;
+                var loadAttribute = function (attribute, assignBufferFunc) {
+                    if (extension.attributes[attribute] == undefined) {
+                        return;
+                    }
+                    var accessor = _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["ArrayItem"].Get(extensionContext + "/attributes/" + attribute, _this._loader.gltf.accessors, extension.attributes[attribute]);
+                    if (instanceCount === null) {
+                        instanceCount = accessor.count;
+                    }
+                    else if (instanceCount !== accessor.count) {
+                        throw new Error(extensionContext + "/attributes: Instance buffer accessors do not have the same count.");
+                    }
+                    promises.push(_this._loader._loadFloatAccessorAsync("/accessors/" + accessor.bufferView, accessor).then(function (data) {
+                        assignBufferFunc(data);
+                    }));
+                };
+                var translationBuffer = null;
+                var rotationBuffer = null;
+                var scaleBuffer = null;
+                loadAttribute("TRANSLATION", function (data) { translationBuffer = data; });
+                loadAttribute("ROTATION", function (data) { rotationBuffer = data; });
+                loadAttribute("SCALE", function (data) { scaleBuffer = data; });
+                return Promise.all(promises).then(function () {
+                    if (instanceCount) {
+                        var instanceName = "";
+                        var instance = null;
+                        var digitLength = instanceCount.toString().length;
+                        for (var i = 0; i < instanceCount; ++i) {
+                            if (node._primitiveBabylonMeshes) {
+                                for (var j = 0; j < node._primitiveBabylonMeshes.length; ++j) {
+                                    var babylonMeshPrimitive = node._primitiveBabylonMeshes[j];
+                                    instanceName = (babylonMeshPrimitive.name || babylonMeshPrimitive.id) + "_" + babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["StringTools"].PadNumber(i, digitLength);
+                                    if (babylonMeshPrimitive.isAnInstance) {
+                                        instance = babylonMeshPrimitive.sourceMesh.createInstance(instanceName);
+                                    }
+                                    else if (babylonMeshPrimitive.createInstance) {
+                                        instance = babylonMeshPrimitive.createInstance(instanceName);
+                                    }
+                                    if (instance) {
+                                        instance.setParent(babylonMeshPrimitive);
+                                        translationBuffer ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArrayToRef(translationBuffer, i * 3, instance.position)
+                                            : instance.position.set(0, 0, 0);
+                                        rotationBuffer ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Quaternion"].FromArrayToRef(rotationBuffer, i * 4, instance.rotationQuaternion)
+                                            : instance.rotationQuaternion.set(0, 0, 0, 1);
+                                        scaleBuffer ? babylonjs_Maths_math_vector__WEBPACK_IMPORTED_MODULE_0__["Vector3"].FromArrayToRef(scaleBuffer, i * 3, instance.scaling)
+                                            : instance.scaling.set(1, 1, 1);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    assign(babylonTransformNode);
+                    return babylonTransformNode;
+                });
+            });
+        });
+    };
+    return KHR_mesh_instancing;
+}());
+
+_glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, function (loader) { return new KHR_mesh_instancing(loader); });
+
+
+/***/ }),
+
 /***/ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts":
 /*!******************************************************!*\
   !*** ./glTF/2.0/Extensions/KHR_mesh_quantization.ts ***!
@@ -5738,7 +5852,7 @@ _glTFLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFLoader"].RegisterExtension(NAME, f
 /*!**************************************!*\
   !*** ./glTF/2.0/Extensions/index.ts ***!
   \**************************************/
-/*! exports provided: EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
+/*! exports provided: EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_instancing, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
 /***/ (function(module, __webpack_exports__, __webpack_require__) {
 
 "use strict";
@@ -5767,29 +5881,32 @@ __webpack_require__.r(__webpack_exports__);
 /* harmony import */ var _KHR_materials_specular__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./KHR_materials_specular */ "./glTF/2.0/Extensions/KHR_materials_specular.ts");
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_specular", function() { return _KHR_materials_specular__WEBPACK_IMPORTED_MODULE_7__["KHR_materials_specular"]; });
 
-/* harmony import */ var _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./KHR_mesh_quantization */ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_8__["KHR_mesh_quantization"]; });
+/* harmony import */ var _KHR_mesh_instancing__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./KHR_mesh_instancing */ "./glTF/2.0/Extensions/KHR_mesh_instancing.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_instancing", function() { return _KHR_mesh_instancing__WEBPACK_IMPORTED_MODULE_8__["KHR_mesh_instancing"]; });
+
+/* harmony import */ var _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./KHR_mesh_quantization */ "./glTF/2.0/Extensions/KHR_mesh_quantization.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _KHR_mesh_quantization__WEBPACK_IMPORTED_MODULE_9__["KHR_mesh_quantization"]; });
 
-/* harmony import */ var _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./KHR_texture_basisu */ "./glTF/2.0/Extensions/KHR_texture_basisu.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_9__["KHR_texture_basisu"]; });
+/* harmony import */ var _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./KHR_texture_basisu */ "./glTF/2.0/Extensions/KHR_texture_basisu.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _KHR_texture_basisu__WEBPACK_IMPORTED_MODULE_10__["KHR_texture_basisu"]; });
 
-/* harmony import */ var _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./KHR_texture_transform */ "./glTF/2.0/Extensions/KHR_texture_transform.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_transform", function() { return _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_10__["KHR_texture_transform"]; });
+/* harmony import */ var _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./KHR_texture_transform */ "./glTF/2.0/Extensions/KHR_texture_transform.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_transform", function() { return _KHR_texture_transform__WEBPACK_IMPORTED_MODULE_11__["KHR_texture_transform"]; });
 
-/* harmony import */ var _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./MSFT_audio_emitter */ "./glTF/2.0/Extensions/MSFT_audio_emitter.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_audio_emitter", function() { return _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_11__["MSFT_audio_emitter"]; });
+/* harmony import */ var _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./MSFT_audio_emitter */ "./glTF/2.0/Extensions/MSFT_audio_emitter.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_audio_emitter", function() { return _MSFT_audio_emitter__WEBPACK_IMPORTED_MODULE_12__["MSFT_audio_emitter"]; });
 
-/* harmony import */ var _MSFT_lod__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./MSFT_lod */ "./glTF/2.0/Extensions/MSFT_lod.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_lod", function() { return _MSFT_lod__WEBPACK_IMPORTED_MODULE_12__["MSFT_lod"]; });
+/* harmony import */ var _MSFT_lod__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./MSFT_lod */ "./glTF/2.0/Extensions/MSFT_lod.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_lod", function() { return _MSFT_lod__WEBPACK_IMPORTED_MODULE_13__["MSFT_lod"]; });
 
-/* harmony import */ var _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./MSFT_minecraftMesh */ "./glTF/2.0/Extensions/MSFT_minecraftMesh.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_minecraftMesh", function() { return _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_13__["MSFT_minecraftMesh"]; });
+/* harmony import */ var _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./MSFT_minecraftMesh */ "./glTF/2.0/Extensions/MSFT_minecraftMesh.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_minecraftMesh", function() { return _MSFT_minecraftMesh__WEBPACK_IMPORTED_MODULE_14__["MSFT_minecraftMesh"]; });
 
-/* harmony import */ var _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./MSFT_sRGBFactors */ "./glTF/2.0/Extensions/MSFT_sRGBFactors.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_sRGBFactors", function() { return _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_14__["MSFT_sRGBFactors"]; });
+/* harmony import */ var _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./MSFT_sRGBFactors */ "./glTF/2.0/Extensions/MSFT_sRGBFactors.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "MSFT_sRGBFactors", function() { return _MSFT_sRGBFactors__WEBPACK_IMPORTED_MODULE_15__["MSFT_sRGBFactors"]; });
 
-/* harmony import */ var _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./ExtrasAsMetadata */ "./glTF/2.0/Extensions/ExtrasAsMetadata.ts");
-/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "ExtrasAsMetadata", function() { return _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_15__["ExtrasAsMetadata"]; });
+/* harmony import */ var _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_16__ = __webpack_require__(/*! ./ExtrasAsMetadata */ "./glTF/2.0/Extensions/ExtrasAsMetadata.ts");
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "ExtrasAsMetadata", function() { return _ExtrasAsMetadata__WEBPACK_IMPORTED_MODULE_16__["ExtrasAsMetadata"]; });
 
 
 
@@ -5807,6 +5924,7 @@ __webpack_require__.r(__webpack_exports__);
 
 
 
+
 
 
 /***/ }),
@@ -7170,6 +7288,7 @@ var GLTFLoader = /** @class */ (function () {
         }
         return accessor._data;
     };
+    /** @hidden */
     GLTFLoader.prototype._loadFloatAccessorAsync = function (context, accessor) {
         return this._loadAccessorAsync(context, accessor, Float32Array);
     };
@@ -7967,7 +8086,7 @@ _glTFFileLoader__WEBPACK_IMPORTED_MODULE_1__["GLTFFileLoader"]._CreateGLTF2Loade
 /*!***************************!*\
   !*** ./glTF/2.0/index.ts ***!
   \***************************/
-/*! exports provided: ArrayItem, GLTFLoader, EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
+/*! exports provided: ArrayItem, GLTFLoader, EXT_lights_image_based, KHR_draco_mesh_compression, KHR_lights, KHR_materials_pbrSpecularGlossiness, KHR_materials_unlit, KHR_materials_clearcoat, KHR_materials_sheen, KHR_materials_specular, KHR_mesh_instancing, KHR_mesh_quantization, KHR_texture_basisu, KHR_texture_transform, MSFT_audio_emitter, MSFT_lod, MSFT_minecraftMesh, MSFT_sRGBFactors, ExtrasAsMetadata */
 /***/ (function(module, __webpack_exports__, __webpack_require__) {
 
 "use strict";
@@ -7994,6 +8113,8 @@ __webpack_require__.r(__webpack_exports__);
 
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_materials_specular", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_materials_specular"]; });
 
+/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_instancing", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_mesh_instancing"]; });
+
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_mesh_quantization", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_mesh_quantization"]; });
 
 /* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "KHR_texture_basisu", function() { return _Extensions__WEBPACK_IMPORTED_MODULE_1__["KHR_texture_basisu"]; });

dist/preview release/loaders/babylonjs.loaders.module.d.ts

@@ -1383,7 +1383,7 @@ declare module "babylonjs-loaders/glTF/2.0/glTFLoader" {
     import { SceneLoaderProgressEvent } from "babylonjs/Loading/sceneLoader";
     import { Scene } from "babylonjs/scene";
     import { IProperty } from "babylonjs-gltf2interface";
-    import { IGLTF, ISampler, INode, IScene, IMesh, ICamera, IAnimation, IAnimationChannel, IBufferView, IMaterial, ITextureInfo, ITexture, IImage, IMeshPrimitive, IArrayItem as IArrItem } from "babylonjs-loaders/glTF/2.0/glTFLoaderInterfaces";
+    import { IGLTF, ISampler, INode, IScene, IMesh, IAccessor, ICamera, IAnimation, IAnimationChannel, IBufferView, IMaterial, ITextureInfo, ITexture, IImage, IMeshPrimitive, IArrayItem as IArrItem } from "babylonjs-loaders/glTF/2.0/glTFLoaderInterfaces";
     import { IGLTFLoaderExtension } from "babylonjs-loaders/glTF/2.0/glTFLoaderExtension";
     import { IGLTFLoader, GLTFFileLoader, GLTFLoaderState, IGLTFLoaderData, IImportMeshAsyncOutput } from "babylonjs-loaders/glTF/glTFFileLoader";
     import { IAnimatable } from 'babylonjs/Animations/animatable.interface';
@@ -1568,7 +1568,8 @@ declare module "babylonjs-loaders/glTF/2.0/glTFLoader" {
          */
         loadBufferViewAsync(context: string, bufferView: IBufferView): Promise<ArrayBufferView>;
         private _loadAccessorAsync;
-        private _loadFloatAccessorAsync;
+        /** @hidden */
+        _loadFloatAccessorAsync(context: string, accessor: IAccessor): Promise<Float32Array>;
         private _loadIndicesAccessorAsync;
         private _loadVertexBufferViewAsync;
         private _loadVertexAccessorAsync;
@@ -1982,6 +1983,35 @@ declare module "babylonjs-loaders/glTF/2.0/Extensions/KHR_materials_specular" {
         private _loadSpecularPropertiesAsync;
     }
 }
+declare module "babylonjs-loaders/glTF/2.0/Extensions/KHR_mesh_instancing" {
+    import { TransformNode } from "babylonjs/Meshes/transformNode";
+    import { Nullable } from "babylonjs/types";
+    import { GLTFLoader } from "babylonjs-loaders/glTF/2.0/glTFLoader";
+    import { IGLTFLoaderExtension } from "babylonjs-loaders/glTF/2.0/glTFLoaderExtension";
+    import { INode } from "babylonjs-loaders/glTF/2.0/glTFLoaderInterfaces";
+    /**
+     * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
+     * [Playground Sample](//TODO)
+     * !!! Experimental Extension Subject to Changes !!!
+     */
+    export class KHR_mesh_instancing implements IGLTFLoaderExtension {
+        /**
+         * The name of this extension.
+         */
+        readonly name: string;
+        /**
+         * Defines whether this extension is enabled.
+         */
+        enabled: boolean;
+        private _loader;
+        /** @hidden */
+        constructor(loader: GLTFLoader);
+        /** @hidden */
+        dispose(): void;
+        /** @hidden */
+        loadNodeAsync(context: string, node: INode, assign: (babylonTransformNode: TransformNode) => void): Nullable<Promise<TransformNode>>;
+    }
+}
 declare module "babylonjs-loaders/glTF/2.0/Extensions/KHR_mesh_quantization" {
     import { IGLTFLoaderExtension } from "babylonjs-loaders/glTF/2.0/glTFLoaderExtension";
     import { GLTFLoader } from "babylonjs-loaders/glTF/2.0/glTFLoader";
@@ -2245,6 +2275,7 @@ declare module "babylonjs-loaders/glTF/2.0/Extensions/index" {
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_materials_clearcoat";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_materials_sheen";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_materials_specular";
+    export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_mesh_instancing";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_mesh_quantization";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_texture_basisu";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_texture_transform";
@@ -4113,7 +4144,8 @@ declare module BABYLON.GLTF2 {
          */
         loadBufferViewAsync(context: string, bufferView: IBufferView): Promise<ArrayBufferView>;
         private _loadAccessorAsync;
-        private _loadFloatAccessorAsync;
+        /** @hidden */
+        _loadFloatAccessorAsync(context: string, accessor: IAccessor): Promise<Float32Array>;
         private _loadIndicesAccessorAsync;
         private _loadVertexBufferViewAsync;
         private _loadVertexAccessorAsync;
@@ -4488,6 +4520,30 @@ declare module BABYLON.GLTF2.Loader.Extensions {
 }
 declare module BABYLON.GLTF2.Loader.Extensions {
     /**
+     * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
+     * [Playground Sample](//TODO)
+     * !!! Experimental Extension Subject to Changes !!!
+     */
+    export class KHR_mesh_instancing implements IGLTFLoaderExtension {
+        /**
+         * The name of this extension.
+         */
+        readonly name: string;
+        /**
+         * Defines whether this extension is enabled.
+         */
+        enabled: boolean;
+        private _loader;
+        /** @hidden */
+        constructor(loader: GLTFLoader);
+        /** @hidden */
+        dispose(): void;
+        /** @hidden */
+        loadNodeAsync(context: string, node: INode, assign: (babylonTransformNode: TransformNode) => void): Nullable<Promise<TransformNode>>;
+    }
+}
+declare module BABYLON.GLTF2.Loader.Extensions {
+    /**
      * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization)
      */
     export class KHR_mesh_quantization implements IGLTFLoaderExtension {

dist/preview release/packagesSizeBaseLine.json

@@ -1 +1 @@
-{"thinEngineOnly":113669,"engineOnly":150272,"sceneOnly":505908,"minGridMaterial":636668,"minStandardMaterial":776628}
+{"thinEngineOnly":113745,"engineOnly":150348,"sceneOnly":506060,"minGridMaterial":636921,"minStandardMaterial":777051}

dist/preview release/viewer/babylon.module.d.ts

@@ -405,6 +405,13 @@ declare module "babylonjs/Misc/stringTools" {
          * @returns the encoded string
          */
         static EncodeArrayBufferToBase64(buffer: ArrayBuffer | ArrayBufferView): string;
+        /**
+        * Converts a number to string and pads with preceeding zeroes until it is of specified length.
+        * @param num the number to convert and pad
+        * @param length the expected length of the string
+        * @returns the padded string
+        */
+        static PadNumber(num: number, length: number): string;
     }
 }
 declare module "babylonjs/Misc/deepCopier" {
@@ -3763,6 +3770,13 @@ declare module "babylonjs/Maths/math.vector" {
          */
         static FromArray(array: DeepImmutable<ArrayLike<number>>, offset?: number): Quaternion;
         /**
+         * Updates the given quaternion "result" from the starting index of the given array.
+         * @param array the array to pull values from
+         * @param offset the offset into the array to start at
+         * @param result the quaternion to store the result in
+         */
+        static FromArrayToRef(array: DeepImmutable<ArrayLike<number>>, offset: number, result: Quaternion): void;
+        /**
          * Create a quaternion from Euler rotation angles
          * @param x Pitch
          * @param y Yaw
@@ -8644,6 +8658,15 @@ declare module "babylonjs/Cameras/targetCamera" {
          */
         noRotationConstraint: boolean;
         /**
+         * Reverses mouselook direction to 'natural' panning as opposed to traditional direct
+         * panning
+         */
+        invertRotation: boolean;
+        /**
+         * Speed multiplier for inverse camera panning
+         */
+        inverseRotationSpeed: number;
+        /**
          * Define the current target of the camera as an object or a position.
          */
         lockedTarget: any;
@@ -52460,6 +52483,8 @@ declare module "babylonjs/Materials/PBR/pbrSheenConfiguration" {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         /** @hidden */
         _areTexturesDirty: boolean;
     }
@@ -52492,6 +52517,20 @@ declare module "babylonjs/Materials/PBR/pbrSheenConfiguration" {
          * a is a intensity
          */
         texture: Nullable<BaseTexture>;
+        private _roughness;
+        /**
+         * Defines the sheen roughness.
+         * It is not taken into account if linkSheenWithAlbedo is true.
+         * To stay backward compatible, material roughness is used instead if sheen roughness = null
+         */
+        roughness: Nullable<number>;
+        private _albedoScaling;
+        /**
+         * If true, the sheen effect is layered above the base BRDF with the albedo-scaling technique.
+         * It allows the strength of the sheen effect to not depend on the base color of the material,
+         * making it easier to setup and tweak the effect
+         */
+        albedoScaling: boolean;
         /** @hidden */
         private _internalMarkAllSubMeshesAsTexturesDirty;
         /** @hidden */
@@ -53167,6 +53206,8 @@ declare module "babylonjs/Materials/PBR/pbrBaseMaterial" {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         SUBSURFACE: boolean;
         SS_REFRACTION: boolean;
         SS_TRANSLUCENCY: boolean;
@@ -73817,6 +73858,13 @@ declare module BABYLON {
          * @returns the encoded string
          */
         static EncodeArrayBufferToBase64(buffer: ArrayBuffer | ArrayBufferView): string;
+        /**
+        * Converts a number to string and pads with preceeding zeroes until it is of specified length.
+        * @param num the number to convert and pad
+        * @param length the expected length of the string
+        * @returns the padded string
+        */
+        static PadNumber(num: number, length: number): string;
     }
 }
 declare module BABYLON {
@@ -77143,6 +77191,13 @@ declare module BABYLON {
          */
         static FromArray(array: DeepImmutable<ArrayLike<number>>, offset?: number): Quaternion;
         /**
+         * Updates the given quaternion "result" from the starting index of the given array.
+         * @param array the array to pull values from
+         * @param offset the offset into the array to start at
+         * @param result the quaternion to store the result in
+         */
+        static FromArrayToRef(array: DeepImmutable<ArrayLike<number>>, offset: number, result: Quaternion): void;
+        /**
          * Create a quaternion from Euler rotation angles
          * @param x Pitch
          * @param y Yaw
@@ -81946,6 +82001,15 @@ declare module BABYLON {
          */
         noRotationConstraint: boolean;
         /**
+         * Reverses mouselook direction to 'natural' panning as opposed to traditional direct
+         * panning
+         */
+        invertRotation: boolean;
+        /**
+         * Speed multiplier for inverse camera panning
+         */
+        inverseRotationSpeed: number;
+        /**
          * Define the current target of the camera as an object or a position.
          */
         lockedTarget: any;
@@ -123752,6 +123816,8 @@ declare module BABYLON {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         /** @hidden */
         _areTexturesDirty: boolean;
     }
@@ -123784,6 +123850,20 @@ declare module BABYLON {
          * a is a intensity
          */
         texture: Nullable<BaseTexture>;
+        private _roughness;
+        /**
+         * Defines the sheen roughness.
+         * It is not taken into account if linkSheenWithAlbedo is true.
+         * To stay backward compatible, material roughness is used instead if sheen roughness = null
+         */
+        roughness: Nullable<number>;
+        private _albedoScaling;
+        /**
+         * If true, the sheen effect is layered above the base BRDF with the albedo-scaling technique.
+         * It allows the strength of the sheen effect to not depend on the base color of the material,
+         * making it easier to setup and tweak the effect
+         */
+        albedoScaling: boolean;
         /** @hidden */
         private _internalMarkAllSubMeshesAsTexturesDirty;
         /** @hidden */
@@ -124376,6 +124456,8 @@ declare module BABYLON {
         SHEEN_TEXTURE: boolean;
         SHEEN_TEXTUREDIRECTUV: number;
         SHEEN_LINKWITHALBEDO: boolean;
+        SHEEN_ROUGHNESS: boolean;
+        SHEEN_ALBEDOSCALING: boolean;
         SUBSURFACE: boolean;
         SS_REFRACTION: boolean;
         SS_TRANSLUCENCY: boolean;

dist/preview release/viewer/babylonjs.loaders.module.d.ts

@@ -1383,7 +1383,7 @@ declare module "babylonjs-loaders/glTF/2.0/glTFLoader" {
     import { SceneLoaderProgressEvent } from "babylonjs/Loading/sceneLoader";
     import { Scene } from "babylonjs/scene";
     import { IProperty } from "babylonjs-gltf2interface";
-    import { IGLTF, ISampler, INode, IScene, IMesh, ICamera, IAnimation, IAnimationChannel, IBufferView, IMaterial, ITextureInfo, ITexture, IImage, IMeshPrimitive, IArrayItem as IArrItem } from "babylonjs-loaders/glTF/2.0/glTFLoaderInterfaces";
+    import { IGLTF, ISampler, INode, IScene, IMesh, IAccessor, ICamera, IAnimation, IAnimationChannel, IBufferView, IMaterial, ITextureInfo, ITexture, IImage, IMeshPrimitive, IArrayItem as IArrItem } from "babylonjs-loaders/glTF/2.0/glTFLoaderInterfaces";
     import { IGLTFLoaderExtension } from "babylonjs-loaders/glTF/2.0/glTFLoaderExtension";
     import { IGLTFLoader, GLTFFileLoader, GLTFLoaderState, IGLTFLoaderData, IImportMeshAsyncOutput } from "babylonjs-loaders/glTF/glTFFileLoader";
     import { IAnimatable } from 'babylonjs/Animations/animatable.interface';
@@ -1568,7 +1568,8 @@ declare module "babylonjs-loaders/glTF/2.0/glTFLoader" {
          */
         loadBufferViewAsync(context: string, bufferView: IBufferView): Promise<ArrayBufferView>;
         private _loadAccessorAsync;
-        private _loadFloatAccessorAsync;
+        /** @hidden */
+        _loadFloatAccessorAsync(context: string, accessor: IAccessor): Promise<Float32Array>;
         private _loadIndicesAccessorAsync;
         private _loadVertexBufferViewAsync;
         private _loadVertexAccessorAsync;
@@ -1982,6 +1983,35 @@ declare module "babylonjs-loaders/glTF/2.0/Extensions/KHR_materials_specular" {
         private _loadSpecularPropertiesAsync;
     }
 }
+declare module "babylonjs-loaders/glTF/2.0/Extensions/KHR_mesh_instancing" {
+    import { TransformNode } from "babylonjs/Meshes/transformNode";
+    import { Nullable } from "babylonjs/types";
+    import { GLTFLoader } from "babylonjs-loaders/glTF/2.0/glTFLoader";
+    import { IGLTFLoaderExtension } from "babylonjs-loaders/glTF/2.0/glTFLoaderExtension";
+    import { INode } from "babylonjs-loaders/glTF/2.0/glTFLoaderInterfaces";
+    /**
+     * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
+     * [Playground Sample](//TODO)
+     * !!! Experimental Extension Subject to Changes !!!
+     */
+    export class KHR_mesh_instancing implements IGLTFLoaderExtension {
+        /**
+         * The name of this extension.
+         */
+        readonly name: string;
+        /**
+         * Defines whether this extension is enabled.
+         */
+        enabled: boolean;
+        private _loader;
+        /** @hidden */
+        constructor(loader: GLTFLoader);
+        /** @hidden */
+        dispose(): void;
+        /** @hidden */
+        loadNodeAsync(context: string, node: INode, assign: (babylonTransformNode: TransformNode) => void): Nullable<Promise<TransformNode>>;
+    }
+}
 declare module "babylonjs-loaders/glTF/2.0/Extensions/KHR_mesh_quantization" {
     import { IGLTFLoaderExtension } from "babylonjs-loaders/glTF/2.0/glTFLoaderExtension";
     import { GLTFLoader } from "babylonjs-loaders/glTF/2.0/glTFLoader";
@@ -2245,6 +2275,7 @@ declare module "babylonjs-loaders/glTF/2.0/Extensions/index" {
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_materials_clearcoat";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_materials_sheen";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_materials_specular";
+    export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_mesh_instancing";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_mesh_quantization";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_texture_basisu";
     export * from "babylonjs-loaders/glTF/2.0/Extensions/KHR_texture_transform";
@@ -4113,7 +4144,8 @@ declare module BABYLON.GLTF2 {
          */
         loadBufferViewAsync(context: string, bufferView: IBufferView): Promise<ArrayBufferView>;
         private _loadAccessorAsync;
-        private _loadFloatAccessorAsync;
+        /** @hidden */
+        _loadFloatAccessorAsync(context: string, accessor: IAccessor): Promise<Float32Array>;
         private _loadIndicesAccessorAsync;
         private _loadVertexBufferViewAsync;
         private _loadVertexAccessorAsync;
@@ -4488,6 +4520,30 @@ declare module BABYLON.GLTF2.Loader.Extensions {
 }
 declare module BABYLON.GLTF2.Loader.Extensions {
     /**
+     * [Proposed Specification](https://github.com/KhronosGroup/glTF/pull/1691)
+     * [Playground Sample](//TODO)
+     * !!! Experimental Extension Subject to Changes !!!
+     */
+    export class KHR_mesh_instancing implements IGLTFLoaderExtension {
+        /**
+         * The name of this extension.
+         */
+        readonly name: string;
+        /**
+         * Defines whether this extension is enabled.
+         */
+        enabled: boolean;
+        private _loader;
+        /** @hidden */
+        constructor(loader: GLTFLoader);
+        /** @hidden */
+        dispose(): void;
+        /** @hidden */
+        loadNodeAsync(context: string, node: INode, assign: (babylonTransformNode: TransformNode) => void): Nullable<Promise<TransformNode>>;
+    }
+}
+declare module BABYLON.GLTF2.Loader.Extensions {
+    /**
      * [Specification](https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization)
      */
     export class KHR_mesh_quantization implements IGLTFLoaderExtension {