BABYLON.Effect.ShadersStore['textureTransformPixelShader'] = "precision highp float;\nvarying vec2 vUV;\nuniform sampler2D textureSampler;\nuniform mat4 textureTransformMat;\nvoid main(void) {\nvec2 uvTransformed=(textureTransformMat*vec4(vUV.xy,1,1)).xy;\ngl_FragColor=texture2D(textureSampler,uvTransformed);\n}";
///
var BABYLON;
(function (BABYLON) {
/**
* Class for generating glTF data from a Babylon scene.
*/
var GLTF2Export = /** @class */ (function () {
function GLTF2Export() {
}
/**
* Exports the geometry of the scene to .gltf file format asynchronously
* @param scene Babylon scene with scene hierarchy information
* @param filePrefix File prefix to use when generating the glTF file
* @param options Exporter options
* @returns Returns an object with a .gltf file and associates texture names
* as keys and their data and paths as values
*/
GLTF2Export.GLTFAsync = function (scene, filePrefix, options) {
return scene.whenReadyAsync().then(function () {
var glTFPrefix = filePrefix.replace(/\.[^/.]+$/, "");
var gltfGenerator = new BABYLON.GLTF2.Exporter._Exporter(scene, options);
return gltfGenerator._generateGLTFAsync(glTFPrefix);
});
};
GLTF2Export._PreExportAsync = function (scene, options) {
return Promise.resolve().then(function () {
if (options && options.exportWithoutWaitingForScene) {
return Promise.resolve();
}
else {
return scene.whenReadyAsync();
}
});
};
GLTF2Export._PostExportAsync = function (scene, glTFData, options) {
return Promise.resolve().then(function () {
if (options && options.exportWithoutWaitingForScene) {
return glTFData;
}
else {
return glTFData;
}
});
};
/**
* Exports the geometry of the scene to .glb file format asychronously
* @param scene Babylon scene with scene hierarchy information
* @param filePrefix File prefix to use when generating glb file
* @param options Exporter options
* @returns Returns an object with a .glb filename as key and data as value
*/
GLTF2Export.GLBAsync = function (scene, filePrefix, options) {
var _this = this;
return this._PreExportAsync(scene, options).then(function () {
var glTFPrefix = filePrefix.replace(/\.[^/.]+$/, "");
var gltfGenerator = new BABYLON.GLTF2.Exporter._Exporter(scene, options);
return gltfGenerator._generateGLBAsync(glTFPrefix).then(function (glTFData) {
return _this._PostExportAsync(scene, glTFData, options);
});
});
};
return GLTF2Export;
}());
BABYLON.GLTF2Export = GLTF2Export;
})(BABYLON || (BABYLON = {}));
//# sourceMappingURL=babylon.glTFSerializer.js.map
///
/**
* @hidden
*/
var BABYLON;
(function (BABYLON) {
var GLTF2;
(function (GLTF2) {
var Exporter;
(function (Exporter) {
/**
* Utility interface for storing vertex attribute data
* @hidden
*/
/**
* Converts Babylon Scene into glTF 2.0.
* @hidden
*/
var _Exporter = /** @class */ (function () {
/**
* Creates a glTF Exporter instance, which can accept optional exporter options
* @param babylonScene Babylon scene object
* @param options Options to modify the behavior of the exporter
*/
function _Exporter(babylonScene, options) {
this._extensions = {};
this._asset = { generator: "BabylonJS", version: "2.0" };
this._extensionsUsed = [];
this._extensionsRequired = [];
this._babylonScene = babylonScene;
this._bufferViews = [];
this._accessors = [];
this._meshes = [];
this._scenes = [];
this._nodes = [];
this._images = [];
this._materials = [];
this._materialMap = [];
this._textures = [];
this._samplers = [];
this._animations = [];
this._imageData = {};
this._convertToRightHandedSystem = this._babylonScene.useRightHandedSystem ? false : true;
var _options = options || {};
this._shouldExportTransformNode = _options.shouldExportTransformNode ? _options.shouldExportTransformNode : function (babylonTransformNode) { return true; };
this._animationSampleRate = _options.animationSampleRate ? _options.animationSampleRate : 1 / 60;
this._glTFMaterialExporter = new Exporter._GLTFMaterialExporter(this);
this._loadExtensions();
}
_Exporter.prototype._applyExtensions = function (property, actionAsync) {
for (var _i = 0, _a = _Exporter._ExtensionNames; _i < _a.length; _i++) {
var name_1 = _a[_i];
var extension = this._extensions[name_1];
if (extension.enabled) {
var exporterProperty = property;
exporterProperty._activeLoaderExtensions = exporterProperty._activeLoaderExtensions || {};
var activeLoaderExtensions = exporterProperty._activeLoaderExtensions;
if (!activeLoaderExtensions[name_1]) {
activeLoaderExtensions[name_1] = true;
try {
var result = actionAsync(extension);
if (result) {
return result;
}
}
finally {
delete activeLoaderExtensions[name_1];
delete exporterProperty._activeLoaderExtensions;
}
}
}
}
return null;
};
_Exporter.prototype._extensionsPreExportTextureAsync = function (context, babylonTexture, mimeType) {
return this._applyExtensions(babylonTexture, function (extension) { return extension.preExportTextureAsync && extension.preExportTextureAsync(context, babylonTexture, mimeType); });
};
_Exporter.prototype._extensionsPostExportMeshPrimitiveAsync = function (context, meshPrimitive, babylonSubMesh, binaryWriter) {
return this._applyExtensions(meshPrimitive, function (extension) { return extension.postExportMeshPrimitiveAsync && extension.postExportMeshPrimitiveAsync(context, meshPrimitive, babylonSubMesh, binaryWriter); });
};
/**
* Load glTF serializer extensions
*/
_Exporter.prototype._loadExtensions = function () {
for (var _i = 0, _a = _Exporter._ExtensionNames; _i < _a.length; _i++) {
var name_2 = _a[_i];
var extension = _Exporter._ExtensionFactories[name_2](this);
this._extensions[name_2] = extension;
}
};
/**
* Registers a glTF exporter extension
* @param name Name of the extension to export
* @param factory The factory function that creates the exporter extension
*/
_Exporter.RegisterExtension = function (name, factory) {
if (_Exporter.UnregisterExtension(name)) {
BABYLON.Tools.Warn("Extension with the name " + name + " already exists");
}
_Exporter._ExtensionFactories[name] = factory;
_Exporter._ExtensionNames.push(name);
};
/**
* Un-registers an exporter extension
* @param name The name fo the exporter extension
* @returns A boolean indicating whether the extension has been un-registered
*/
_Exporter.UnregisterExtension = function (name) {
if (!_Exporter._ExtensionFactories[name]) {
return false;
}
delete _Exporter._ExtensionFactories[name];
var index = _Exporter._ExtensionNames.indexOf(name);
if (index !== -1) {
_Exporter._ExtensionNames.splice(index, 1);
}
return true;
};
/**
* Lazy load a local engine with premultiplied alpha set to false
*/
_Exporter.prototype._getLocalEngine = function () {
if (!this._localEngine) {
var localCanvas = document.createElement('canvas');
localCanvas.id = "WriteCanvas";
localCanvas.width = 2048;
localCanvas.height = 2048;
this._localEngine = new BABYLON.Engine(localCanvas, true, { premultipliedAlpha: false, preserveDrawingBuffer: true });
this._localEngine.setViewport(new BABYLON.Viewport(0, 0, 1, 1));
}
return this._localEngine;
};
_Exporter.prototype.reorderIndicesBasedOnPrimitiveMode = function (submesh, primitiveMode, babylonIndices, byteOffset, binaryWriter) {
switch (primitiveMode) {
case BABYLON.Material.TriangleFillMode: {
if (!byteOffset) {
byteOffset = 0;
}
for (var i = submesh.indexStart, length_1 = submesh.indexStart + submesh.indexCount; i < length_1; i = i + 3) {
var index = byteOffset + i * 4;
// swap the second and third indices
var secondIndex = binaryWriter.getUInt32(index + 4);
var thirdIndex = binaryWriter.getUInt32(index + 8);
binaryWriter.setUInt32(thirdIndex, index + 4);
binaryWriter.setUInt32(secondIndex, index + 8);
}
break;
}
case BABYLON.Material.TriangleFanDrawMode: {
for (var i = submesh.indexStart + submesh.indexCount - 1, start = submesh.indexStart; i >= start; --i) {
binaryWriter.setUInt32(babylonIndices[i], byteOffset);
byteOffset += 4;
}
break;
}
case BABYLON.Material.TriangleStripDrawMode: {
if (submesh.indexCount >= 3) {
binaryWriter.setUInt32(babylonIndices[submesh.indexStart + 2], byteOffset + 4);
binaryWriter.setUInt32(babylonIndices[submesh.indexStart + 1], byteOffset + 8);
}
break;
}
}
};
/**
* Reorders the vertex attribute data based on the primitive mode. This is necessary when indices are not available and the winding order is
* clock-wise during export to glTF
* @param submesh BabylonJS submesh
* @param primitiveMode Primitive mode of the mesh
* @param sideOrientation the winding order of the submesh
* @param vertexBufferKind The type of vertex attribute
* @param meshAttributeArray The vertex attribute data
* @param byteOffset The offset to the binary data
* @param binaryWriter The binary data for the glTF file
*/
_Exporter.prototype.reorderVertexAttributeDataBasedOnPrimitiveMode = function (submesh, primitiveMode, sideOrientation, vertexBufferKind, meshAttributeArray, byteOffset, binaryWriter) {
if (this._convertToRightHandedSystem && sideOrientation === BABYLON.Material.ClockWiseSideOrientation) {
switch (primitiveMode) {
case BABYLON.Material.TriangleFillMode: {
this.reorderTriangleFillMode(submesh, primitiveMode, sideOrientation, vertexBufferKind, meshAttributeArray, byteOffset, binaryWriter);
break;
}
case BABYLON.Material.TriangleStripDrawMode: {
this.reorderTriangleStripDrawMode(submesh, primitiveMode, sideOrientation, vertexBufferKind, meshAttributeArray, byteOffset, binaryWriter);
break;
}
case BABYLON.Material.TriangleFanDrawMode: {
this.reorderTriangleFanMode(submesh, primitiveMode, sideOrientation, vertexBufferKind, meshAttributeArray, byteOffset, binaryWriter);
break;
}
}
}
};
/**
* Reorders the vertex attributes in the correct triangle mode order . This is necessary when indices are not available and the winding order is
* clock-wise during export to glTF
* @param submesh BabylonJS submesh
* @param primitiveMode Primitive mode of the mesh
* @param sideOrientation the winding order of the submesh
* @param vertexBufferKind The type of vertex attribute
* @param meshAttributeArray The vertex attribute data
* @param byteOffset The offset to the binary data
* @param binaryWriter The binary data for the glTF file
*/
_Exporter.prototype.reorderTriangleFillMode = function (submesh, primitiveMode, sideOrientation, vertexBufferKind, meshAttributeArray, byteOffset, binaryWriter) {
var vertexBuffer = this.getVertexBufferFromMesh(vertexBufferKind, submesh.getMesh());
if (vertexBuffer) {
var stride = vertexBuffer.byteStride / BABYLON.VertexBuffer.GetTypeByteLength(vertexBuffer.type);
if (submesh.verticesCount % 3 !== 0) {
BABYLON.Tools.Error('The submesh vertices for the triangle fill mode is not divisible by 3!');
}
else {
var vertexData = [];
var index = 0;
switch (vertexBufferKind) {
case BABYLON.VertexBuffer.PositionKind:
case BABYLON.VertexBuffer.NormalKind: {
for (var x = submesh.verticesStart; x < submesh.verticesStart + submesh.verticesCount; x = x + 3) {
index = x * stride;
vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index));
vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index + 2 * stride));
vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index + stride));
}
break;
}
case BABYLON.VertexBuffer.TangentKind: {
for (var x = submesh.verticesStart; x < submesh.verticesStart + submesh.verticesCount; x = x + 3) {
index = x * stride;
vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index));
vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index + 2 * stride));
vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index + stride));
}
break;
}
case BABYLON.VertexBuffer.ColorKind: {
var size = vertexBuffer.getSize();
for (var x = submesh.verticesStart; x < submesh.verticesStart + submesh.verticesCount; x = x + size) {
index = x * stride;
if (size === 4) {
vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index));
vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index + 2 * stride));
vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index + stride));
}
else {
vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index));
vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index + 2 * stride));
vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index + stride));
}
}
break;
}
case BABYLON.VertexBuffer.UVKind:
case BABYLON.VertexBuffer.UV2Kind: {
for (var x = submesh.verticesStart; x < submesh.verticesStart + submesh.verticesCount; x = x + 3) {
index = x * stride;
vertexData.push(BABYLON.Vector2.FromArray(meshAttributeArray, index));
vertexData.push(BABYLON.Vector2.FromArray(meshAttributeArray, index + 2 * stride));
vertexData.push(BABYLON.Vector2.FromArray(meshAttributeArray, index + stride));
}
break;
}
default: {
BABYLON.Tools.Error("Unsupported Vertex Buffer type: " + vertexBufferKind);
}
}
this.writeVertexAttributeData(vertexData, byteOffset, vertexBufferKind, meshAttributeArray, binaryWriter);
}
}
else {
BABYLON.Tools.Warn("reorderTriangleFillMode: Vertex Buffer Kind " + vertexBufferKind + " not present!");
}
};
/**
* Reorders the vertex attributes in the correct triangle strip order. This is necessary when indices are not available and the winding order is
* clock-wise during export to glTF
* @param submesh BabylonJS submesh
* @param primitiveMode Primitive mode of the mesh
* @param sideOrientation the winding order of the submesh
* @param vertexBufferKind The type of vertex attribute
* @param meshAttributeArray The vertex attribute data
* @param byteOffset The offset to the binary data
* @param binaryWriter The binary data for the glTF file
*/
_Exporter.prototype.reorderTriangleStripDrawMode = function (submesh, primitiveMode, sideOrientation, vertexBufferKind, meshAttributeArray, byteOffset, binaryWriter) {
var vertexBuffer = this.getVertexBufferFromMesh(vertexBufferKind, submesh.getMesh());
if (vertexBuffer) {
var stride = vertexBuffer.byteStride / BABYLON.VertexBuffer.GetTypeByteLength(vertexBuffer.type);
var vertexData = [];
var index = 0;
switch (vertexBufferKind) {
case BABYLON.VertexBuffer.PositionKind:
case BABYLON.VertexBuffer.NormalKind: {
index = submesh.verticesStart;
vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index + 2 * stride));
vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index + stride));
break;
}
case BABYLON.VertexBuffer.TangentKind: {
for (var x = submesh.verticesStart + submesh.verticesCount - 1; x >= submesh.verticesStart; --x) {
index = x * stride;
vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index));
}
break;
}
case BABYLON.VertexBuffer.ColorKind: {
for (var x = submesh.verticesStart + submesh.verticesCount - 1; x >= submesh.verticesStart; --x) {
index = x * stride;
vertexBuffer.getSize() === 4 ? vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index)) : vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index));
}
break;
}
case BABYLON.VertexBuffer.UVKind:
case BABYLON.VertexBuffer.UV2Kind: {
for (var x = submesh.verticesStart + submesh.verticesCount - 1; x >= submesh.verticesStart; --x) {
index = x * stride;
vertexData.push(BABYLON.Vector2.FromArray(meshAttributeArray, index));
}
break;
}
default: {
BABYLON.Tools.Error("Unsupported Vertex Buffer type: " + vertexBufferKind);
}
}
this.writeVertexAttributeData(vertexData, byteOffset + 12, vertexBufferKind, meshAttributeArray, binaryWriter);
}
else {
BABYLON.Tools.Warn("reorderTriangleStripDrawMode: Vertex buffer kind " + vertexBufferKind + " not present!");
}
};
/**
* Reorders the vertex attributes in the correct triangle fan order. This is necessary when indices are not available and the winding order is
* clock-wise during export to glTF
* @param submesh BabylonJS submesh
* @param primitiveMode Primitive mode of the mesh
* @param sideOrientation the winding order of the submesh
* @param vertexBufferKind The type of vertex attribute
* @param meshAttributeArray The vertex attribute data
* @param byteOffset The offset to the binary data
* @param binaryWriter The binary data for the glTF file
*/
_Exporter.prototype.reorderTriangleFanMode = function (submesh, primitiveMode, sideOrientation, vertexBufferKind, meshAttributeArray, byteOffset, binaryWriter) {
var vertexBuffer = this.getVertexBufferFromMesh(vertexBufferKind, submesh.getMesh());
if (vertexBuffer) {
var stride = vertexBuffer.byteStride / BABYLON.VertexBuffer.GetTypeByteLength(vertexBuffer.type);
var vertexData = [];
var index = 0;
switch (vertexBufferKind) {
case BABYLON.VertexBuffer.PositionKind:
case BABYLON.VertexBuffer.NormalKind: {
for (var x = submesh.verticesStart + submesh.verticesCount - 1; x >= submesh.verticesStart; --x) {
index = x * stride;
vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index));
}
break;
}
case BABYLON.VertexBuffer.TangentKind: {
for (var x = submesh.verticesStart + submesh.verticesCount - 1; x >= submesh.verticesStart; --x) {
index = x * stride;
vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index));
}
break;
}
case BABYLON.VertexBuffer.ColorKind: {
for (var x = submesh.verticesStart + submesh.verticesCount - 1; x >= submesh.verticesStart; --x) {
index = x * stride;
vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index));
vertexBuffer.getSize() === 4 ? vertexData.push(BABYLON.Vector4.FromArray(meshAttributeArray, index)) : vertexData.push(BABYLON.Vector3.FromArray(meshAttributeArray, index));
}
break;
}
case BABYLON.VertexBuffer.UVKind:
case BABYLON.VertexBuffer.UV2Kind: {
for (var x = submesh.verticesStart + submesh.verticesCount - 1; x >= submesh.verticesStart; --x) {
index = x * stride;
vertexData.push(BABYLON.Vector2.FromArray(meshAttributeArray, index));
}
break;
}
default: {
BABYLON.Tools.Error("Unsupported Vertex Buffer type: " + vertexBufferKind);
}
}
this.writeVertexAttributeData(vertexData, byteOffset, vertexBufferKind, meshAttributeArray, binaryWriter);
}
else {
BABYLON.Tools.Warn("reorderTriangleFanMode: Vertex buffer kind " + vertexBufferKind + " not present!");
}
};
/**
* Writes the vertex attribute data to binary
* @param vertices The vertices to write to the binary writer
* @param byteOffset The offset into the binary writer to overwrite binary data
* @param vertexAttributeKind The vertex attribute type
* @param meshAttributeArray The vertex attribute data
* @param binaryWriter The writer containing the binary data
*/
_Exporter.prototype.writeVertexAttributeData = function (vertices, byteOffset, vertexAttributeKind, meshAttributeArray, binaryWriter) {
for (var _i = 0, vertices_1 = vertices; _i < vertices_1.length; _i++) {
var vertex = vertices_1[_i];
if (this._convertToRightHandedSystem && !(vertexAttributeKind === BABYLON.VertexBuffer.ColorKind) && !(vertex instanceof BABYLON.Vector2)) {
if (vertex instanceof BABYLON.Vector3) {
if (vertexAttributeKind === BABYLON.VertexBuffer.NormalKind) {
Exporter._GLTFUtilities._GetRightHandedNormalVector3FromRef(vertex);
}
else if (vertexAttributeKind === BABYLON.VertexBuffer.PositionKind) {
Exporter._GLTFUtilities._GetRightHandedPositionVector3FromRef(vertex);
}
else {
BABYLON.Tools.Error('Unsupported vertex attribute kind!');
}
}
else {
Exporter._GLTFUtilities._GetRightHandedVector4FromRef(vertex);
}
}
if (vertexAttributeKind === BABYLON.VertexBuffer.NormalKind) {
vertex.normalize();
}
else if (vertexAttributeKind === BABYLON.VertexBuffer.TangentKind && vertex instanceof BABYLON.Vector4) {
Exporter._GLTFUtilities._NormalizeTangentFromRef(vertex);
}
for (var _a = 0, _b = vertex.asArray(); _a < _b.length; _a++) {
var component = _b[_a];
binaryWriter.setFloat32(component, byteOffset);
byteOffset += 4;
}
}
};
/**
* Writes mesh attribute data to a data buffer
* Returns the bytelength of the data
* @param vertexBufferKind Indicates what kind of vertex data is being passed in
* @param meshAttributeArray Array containing the attribute data
* @param binaryWriter The buffer to write the binary data to
* @param indices Used to specify the order of the vertex data
*/
_Exporter.prototype.writeAttributeData = function (vertexBufferKind, meshAttributeArray, byteStride, binaryWriter) {
var stride = byteStride / 4;
var vertexAttributes = [];
var index;
switch (vertexBufferKind) {
case BABYLON.VertexBuffer.PositionKind: {
for (var k = 0, length_2 = meshAttributeArray.length / stride; k < length_2; ++k) {
index = k * stride;
var vertexData = BABYLON.Vector3.FromArray(meshAttributeArray, index);
if (this._convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedPositionVector3FromRef(vertexData);
}
vertexAttributes.push(vertexData.asArray());
}
break;
}
case BABYLON.VertexBuffer.NormalKind: {
for (var k = 0, length_3 = meshAttributeArray.length / stride; k < length_3; ++k) {
index = k * stride;
var vertexData = BABYLON.Vector3.FromArray(meshAttributeArray, index);
if (this._convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedNormalVector3FromRef(vertexData);
}
vertexData.normalize();
vertexAttributes.push(vertexData.asArray());
}
break;
}
case BABYLON.VertexBuffer.TangentKind: {
for (var k = 0, length_4 = meshAttributeArray.length / stride; k < length_4; ++k) {
index = k * stride;
var vertexData = BABYLON.Vector4.FromArray(meshAttributeArray, index);
if (this._convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedVector4FromRef(vertexData);
}
Exporter._GLTFUtilities._NormalizeTangentFromRef(vertexData);
vertexAttributes.push(vertexData.asArray());
}
break;
}
case BABYLON.VertexBuffer.ColorKind: {
for (var k = 0, length_5 = meshAttributeArray.length / stride; k < length_5; ++k) {
index = k * stride;
var vertexData = stride === 3 ? BABYLON.Vector3.FromArray(meshAttributeArray, index) : BABYLON.Vector4.FromArray(meshAttributeArray, index);
vertexAttributes.push(vertexData.asArray());
}
break;
}
case BABYLON.VertexBuffer.UVKind:
case BABYLON.VertexBuffer.UV2Kind: {
for (var k = 0, length_6 = meshAttributeArray.length / stride; k < length_6; ++k) {
index = k * stride;
vertexAttributes.push(this._convertToRightHandedSystem ? [meshAttributeArray[index], meshAttributeArray[index + 1]] : [meshAttributeArray[index], meshAttributeArray[index + 1]]);
}
break;
}
default: {
BABYLON.Tools.Warn("Unsupported Vertex Buffer Type: " + vertexBufferKind);
vertexAttributes = [];
}
}
for (var _i = 0, vertexAttributes_1 = vertexAttributes; _i < vertexAttributes_1.length; _i++) {
var vertexAttribute = vertexAttributes_1[_i];
for (var _a = 0, vertexAttribute_1 = vertexAttribute; _a < vertexAttribute_1.length; _a++) {
var component = vertexAttribute_1[_a];
binaryWriter.setFloat32(component);
}
}
};
/**
* Generates glTF json data
* @param shouldUseGlb Indicates whether the json should be written for a glb file
* @param glTFPrefix Text to use when prefixing a glTF file
* @param prettyPrint Indicates whether the json file should be pretty printed (true) or not (false)
* @returns json data as string
*/
_Exporter.prototype.generateJSON = function (shouldUseGlb, glTFPrefix, prettyPrint) {
var _this = this;
var buffer = { byteLength: this._totalByteLength };
var imageName;
var imageData;
var bufferView;
var byteOffset = this._totalByteLength;
var glTF = {
asset: this._asset
};
if (this._extensionsUsed && this._extensionsUsed.length) {
glTF.extensionsUsed = this._extensionsUsed;
}
if (this._extensionsRequired && this._extensionsRequired.length) {
glTF.extensionsRequired = this._extensionsRequired;
}
if (buffer.byteLength) {
glTF.buffers = [buffer];
}
if (this._nodes && this._nodes.length) {
glTF.nodes = this._nodes;
}
if (this._meshes && this._meshes.length) {
glTF.meshes = this._meshes;
}
if (this._scenes && this._scenes.length) {
glTF.scenes = this._scenes;
glTF.scene = 0;
}
if (this._bufferViews && this._bufferViews.length) {
glTF.bufferViews = this._bufferViews;
}
if (this._accessors && this._accessors.length) {
glTF.accessors = this._accessors;
}
if (this._animations && this._animations.length) {
glTF.animations = this._animations;
}
if (this._materials && this._materials.length) {
glTF.materials = this._materials;
}
if (this._textures && this._textures.length) {
glTF.textures = this._textures;
}
if (this._samplers && this._samplers.length) {
glTF.samplers = this._samplers;
}
if (this._images && this._images.length) {
if (!shouldUseGlb) {
glTF.images = this._images;
}
else {
glTF.images = [];
this._images.forEach(function (image) {
if (image.uri) {
imageData = _this._imageData[image.uri];
imageName = image.uri.split('.')[0] + " image";
bufferView = Exporter._GLTFUtilities._CreateBufferView(0, byteOffset, imageData.data.length, undefined, imageName);
byteOffset += imageData.data.buffer.byteLength;
_this._bufferViews.push(bufferView);
image.bufferView = _this._bufferViews.length - 1;
image.name = imageName;
image.mimeType = imageData.mimeType;
image.uri = undefined;
if (!glTF.images) {
glTF.images = [];
}
glTF.images.push(image);
}
});
// Replace uri with bufferview and mime type for glb
buffer.byteLength = byteOffset;
}
}
if (!shouldUseGlb) {
buffer.uri = glTFPrefix + ".bin";
}
var jsonText = prettyPrint ? JSON.stringify(glTF, null, 2) : JSON.stringify(glTF);
return jsonText;
};
/**
* Generates data for .gltf and .bin files based on the glTF prefix string
* @param glTFPrefix Text to use when prefixing a glTF file
* @returns GLTFData with glTF file data
*/
_Exporter.prototype._generateGLTFAsync = function (glTFPrefix) {
var _this = this;
return this._generateBinaryAsync().then(function (binaryBuffer) {
var jsonText = _this.generateJSON(false, glTFPrefix, true);
var bin = new Blob([binaryBuffer], { type: 'application/octet-stream' });
var glTFFileName = glTFPrefix + '.gltf';
var glTFBinFile = glTFPrefix + '.bin';
var container = new BABYLON.GLTFData();
container.glTFFiles[glTFFileName] = jsonText;
container.glTFFiles[glTFBinFile] = bin;
if (_this._imageData) {
for (var image in _this._imageData) {
container.glTFFiles[image] = new Blob([_this._imageData[image].data], { type: _this._imageData[image].mimeType });
}
}
return container;
});
};
/**
* Creates a binary buffer for glTF
* @returns array buffer for binary data
*/
_Exporter.prototype._generateBinaryAsync = function () {
var _this = this;
var binaryWriter = new _BinaryWriter(4);
return this.createSceneAsync(this._babylonScene, binaryWriter).then(function () {
if (_this._localEngine) {
_this._localEngine.dispose();
}
return binaryWriter.getArrayBuffer();
});
};
/**
* Pads the number to a multiple of 4
* @param num number to pad
* @returns padded number
*/
_Exporter.prototype._getPadding = function (num) {
var remainder = num % 4;
var padding = remainder === 0 ? remainder : 4 - remainder;
return padding;
};
/**
* Generates a glb file from the json and binary data
* Returns an object with the glb file name as the key and data as the value
* @param glTFPrefix
* @returns object with glb filename as key and data as value
*/
_Exporter.prototype._generateGLBAsync = function (glTFPrefix) {
var _this = this;
return this._generateBinaryAsync().then(function (binaryBuffer) {
var jsonText = _this.generateJSON(true);
var glbFileName = glTFPrefix + '.glb';
var headerLength = 12;
var chunkLengthPrefix = 8;
var jsonLength = jsonText.length;
var imageByteLength = 0;
for (var key in _this._imageData) {
imageByteLength += _this._imageData[key].data.byteLength;
}
var jsonPadding = _this._getPadding(jsonLength);
var binPadding = _this._getPadding(binaryBuffer.byteLength);
var imagePadding = _this._getPadding(imageByteLength);
var byteLength = headerLength + (2 * chunkLengthPrefix) + jsonLength + jsonPadding + binaryBuffer.byteLength + binPadding + imageByteLength + imagePadding;
//header
var headerBuffer = new ArrayBuffer(headerLength);
var headerBufferView = new DataView(headerBuffer);
headerBufferView.setUint32(0, 0x46546C67, true); //glTF
headerBufferView.setUint32(4, 2, true); // version
headerBufferView.setUint32(8, byteLength, true); // total bytes in file
//json chunk
var jsonChunkBuffer = new ArrayBuffer(chunkLengthPrefix + jsonLength + jsonPadding);
var jsonChunkBufferView = new DataView(jsonChunkBuffer);
jsonChunkBufferView.setUint32(0, jsonLength + jsonPadding, true);
jsonChunkBufferView.setUint32(4, 0x4E4F534A, true);
//json chunk bytes
var jsonData = new Uint8Array(jsonChunkBuffer, chunkLengthPrefix);
for (var i = 0; i < jsonLength; ++i) {
jsonData[i] = jsonText.charCodeAt(i);
}
//json padding
var jsonPaddingView = new Uint8Array(jsonChunkBuffer, chunkLengthPrefix + jsonLength);
for (var i = 0; i < jsonPadding; ++i) {
jsonPaddingView[i] = 0x20;
}
//binary chunk
var binaryChunkBuffer = new ArrayBuffer(chunkLengthPrefix);
var binaryChunkBufferView = new DataView(binaryChunkBuffer);
binaryChunkBufferView.setUint32(0, binaryBuffer.byteLength + imageByteLength + imagePadding, true);
binaryChunkBufferView.setUint32(4, 0x004E4942, true);
// binary padding
var binPaddingBuffer = new ArrayBuffer(binPadding);
var binPaddingView = new Uint8Array(binPaddingBuffer);
for (var i = 0; i < binPadding; ++i) {
binPaddingView[i] = 0;
}
var imagePaddingBuffer = new ArrayBuffer(imagePadding);
var imagePaddingView = new Uint8Array(imagePaddingBuffer);
for (var i = 0; i < imagePadding; ++i) {
imagePaddingView[i] = 0;
}
var glbData = [headerBuffer, jsonChunkBuffer, binaryChunkBuffer, binaryBuffer];
// binary data
for (var key in _this._imageData) {
glbData.push(_this._imageData[key].data.buffer);
}
glbData.push(binPaddingBuffer);
glbData.push(imagePaddingBuffer);
var glbFile = new Blob(glbData, { type: 'application/octet-stream' });
var container = new BABYLON.GLTFData();
container.glTFFiles[glbFileName] = glbFile;
if (_this._localEngine != null) {
_this._localEngine.dispose();
}
return container;
});
};
/**
* Sets the TRS for each node
* @param node glTF Node for storing the transformation data
* @param babylonTransformNode Babylon mesh used as the source for the transformation data
*/
_Exporter.prototype.setNodeTransformation = function (node, babylonTransformNode) {
if (!babylonTransformNode.getPivotPoint().equalsToFloats(0, 0, 0)) {
BABYLON.Tools.Warn("Pivot points are not supported in the glTF serializer");
}
if (!babylonTransformNode.position.equalsToFloats(0, 0, 0)) {
node.translation = this._convertToRightHandedSystem ? Exporter._GLTFUtilities._GetRightHandedPositionVector3(babylonTransformNode.position).asArray() : babylonTransformNode.position.asArray();
}
if (!babylonTransformNode.scaling.equalsToFloats(1, 1, 1)) {
node.scale = babylonTransformNode.scaling.asArray();
}
var rotationQuaternion = BABYLON.Quaternion.RotationYawPitchRoll(babylonTransformNode.rotation.y, babylonTransformNode.rotation.x, babylonTransformNode.rotation.z);
if (babylonTransformNode.rotationQuaternion) {
rotationQuaternion.multiplyInPlace(babylonTransformNode.rotationQuaternion);
}
if (!(rotationQuaternion.x === 0 && rotationQuaternion.y === 0 && rotationQuaternion.z === 0 && rotationQuaternion.w === 1)) {
if (this._convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedQuaternionFromRef(rotationQuaternion);
}
node.rotation = rotationQuaternion.normalize().asArray();
}
};
_Exporter.prototype.getVertexBufferFromMesh = function (attributeKind, bufferMesh) {
if (bufferMesh.isVerticesDataPresent(attributeKind)) {
var vertexBuffer = bufferMesh.getVertexBuffer(attributeKind);
if (vertexBuffer) {
return vertexBuffer;
}
}
return null;
};
/**
* Creates a bufferview based on the vertices type for the Babylon mesh
* @param kind Indicates the type of vertices data
* @param babylonTransformNode The Babylon mesh to get the vertices data from
* @param binaryWriter The buffer to write the bufferview data to
*/
_Exporter.prototype.createBufferViewKind = function (kind, babylonTransformNode, binaryWriter, byteStride) {
var bufferMesh = babylonTransformNode instanceof BABYLON.Mesh ?
babylonTransformNode : babylonTransformNode instanceof BABYLON.InstancedMesh ?
babylonTransformNode.sourceMesh : null;
if (bufferMesh) {
var vertexData = bufferMesh.getVerticesData(kind);
if (vertexData) {
var byteLength = vertexData.length * 4;
var bufferView = Exporter._GLTFUtilities._CreateBufferView(0, binaryWriter.getByteOffset(), byteLength, byteStride, kind + " - " + bufferMesh.name);
this._bufferViews.push(bufferView);
this.writeAttributeData(kind, vertexData, byteStride, binaryWriter);
}
}
};
/**
* The primitive mode of the Babylon mesh
* @param babylonMesh The BabylonJS mesh
*/
_Exporter.prototype.getMeshPrimitiveMode = function (babylonMesh) {
if (babylonMesh instanceof BABYLON.LinesMesh) {
return BABYLON.Material.LineListDrawMode;
}
return babylonMesh.material ? babylonMesh.material.fillMode : BABYLON.Material.TriangleFillMode;
};
/**
* Sets the primitive mode of the glTF mesh primitive
* @param meshPrimitive glTF mesh primitive
* @param primitiveMode The primitive mode
*/
_Exporter.prototype.setPrimitiveMode = function (meshPrimitive, primitiveMode) {
switch (primitiveMode) {
case BABYLON.Material.TriangleFillMode: {
// glTF defaults to using Triangle Mode
break;
}
case BABYLON.Material.TriangleStripDrawMode: {
meshPrimitive.mode = 5 /* TRIANGLE_STRIP */;
break;
}
case BABYLON.Material.TriangleFanDrawMode: {
meshPrimitive.mode = 6 /* TRIANGLE_FAN */;
break;
}
case BABYLON.Material.PointListDrawMode: {
meshPrimitive.mode = 0 /* POINTS */;
}
case BABYLON.Material.PointFillMode: {
meshPrimitive.mode = 0 /* POINTS */;
break;
}
case BABYLON.Material.LineLoopDrawMode: {
meshPrimitive.mode = 2 /* LINE_LOOP */;
break;
}
case BABYLON.Material.LineListDrawMode: {
meshPrimitive.mode = 1 /* LINES */;
break;
}
case BABYLON.Material.LineStripDrawMode: {
meshPrimitive.mode = 3 /* LINE_STRIP */;
break;
}
}
};
/**
* Sets the vertex attribute accessor based of the glTF mesh primitive
* @param meshPrimitive glTF mesh primitive
* @param attributeKind vertex attribute
* @returns boolean specifying if uv coordinates are present
*/
_Exporter.prototype.setAttributeKind = function (meshPrimitive, attributeKind) {
switch (attributeKind) {
case BABYLON.VertexBuffer.PositionKind: {
meshPrimitive.attributes.POSITION = this._accessors.length - 1;
break;
}
case BABYLON.VertexBuffer.NormalKind: {
meshPrimitive.attributes.NORMAL = this._accessors.length - 1;
break;
}
case BABYLON.VertexBuffer.ColorKind: {
meshPrimitive.attributes.COLOR_0 = this._accessors.length - 1;
break;
}
case BABYLON.VertexBuffer.TangentKind: {
meshPrimitive.attributes.TANGENT = this._accessors.length - 1;
break;
}
case BABYLON.VertexBuffer.UVKind: {
meshPrimitive.attributes.TEXCOORD_0 = this._accessors.length - 1;
break;
}
case BABYLON.VertexBuffer.UV2Kind: {
meshPrimitive.attributes.TEXCOORD_1 = this._accessors.length - 1;
break;
}
default: {
BABYLON.Tools.Warn("Unsupported Vertex Buffer Type: " + attributeKind);
}
}
};
/**
* Sets data for the primitive attributes of each submesh
* @param mesh glTF Mesh object to store the primitive attribute information
* @param babylonTransformNode Babylon mesh to get the primitive attribute data from
* @param binaryWriter Buffer to write the attribute data to
*/
_Exporter.prototype.setPrimitiveAttributesAsync = function (mesh, babylonTransformNode, binaryWriter) {
var promises = [];
var bufferMesh = null;
var bufferView;
var uvCoordsPresent;
var minMax;
if (babylonTransformNode instanceof BABYLON.Mesh) {
bufferMesh = babylonTransformNode;
}
else if (babylonTransformNode instanceof BABYLON.InstancedMesh) {
bufferMesh = babylonTransformNode.sourceMesh;
}
var attributeData = [
{ kind: BABYLON.VertexBuffer.PositionKind, accessorType: "VEC3" /* VEC3 */, byteStride: 12 },
{ kind: BABYLON.VertexBuffer.NormalKind, accessorType: "VEC3" /* VEC3 */, byteStride: 12 },
{ kind: BABYLON.VertexBuffer.ColorKind, accessorType: "VEC4" /* VEC4 */, byteStride: 16 },
{ kind: BABYLON.VertexBuffer.TangentKind, accessorType: "VEC4" /* VEC4 */, byteStride: 16 },
{ kind: BABYLON.VertexBuffer.UVKind, accessorType: "VEC2" /* VEC2 */, byteStride: 8 },
{ kind: BABYLON.VertexBuffer.UV2Kind, accessorType: "VEC2" /* VEC2 */, byteStride: 8 },
];
if (bufferMesh) {
var indexBufferViewIndex = null;
var primitiveMode = this.getMeshPrimitiveMode(bufferMesh);
var vertexAttributeBufferViews = {};
// For each BabylonMesh, create bufferviews for each 'kind'
for (var _i = 0, attributeData_1 = attributeData; _i < attributeData_1.length; _i++) {
var attribute = attributeData_1[_i];
var attributeKind = attribute.kind;
if (bufferMesh.isVerticesDataPresent(attributeKind)) {
var vertexBuffer = this.getVertexBufferFromMesh(attributeKind, bufferMesh);
attribute.byteStride = vertexBuffer ? vertexBuffer.getSize() * 4 : BABYLON.VertexBuffer.DeduceStride(attributeKind) * 4;
if (attribute.byteStride === 12) {
attribute.accessorType = "VEC3" /* VEC3 */;
}
this.createBufferViewKind(attributeKind, babylonTransformNode, binaryWriter, attribute.byteStride);
attribute.bufferViewIndex = this._bufferViews.length - 1;
vertexAttributeBufferViews[attributeKind] = attribute.bufferViewIndex;
}
}
if (bufferMesh.getTotalIndices()) {
var indices = bufferMesh.getIndices();
if (indices) {
var byteLength = indices.length * 4;
bufferView = Exporter._GLTFUtilities._CreateBufferView(0, binaryWriter.getByteOffset(), byteLength, undefined, "Indices - " + bufferMesh.name);
this._bufferViews.push(bufferView);
indexBufferViewIndex = this._bufferViews.length - 1;
for (var k = 0, length_7 = indices.length; k < length_7; ++k) {
binaryWriter.setUInt32(indices[k]);
}
}
}
if (bufferMesh.subMeshes) {
// go through all mesh primitives (submeshes)
for (var _a = 0, _b = bufferMesh.subMeshes; _a < _b.length; _a++) {
var submesh = _b[_a];
uvCoordsPresent = false;
var babylonMaterial = submesh.getMaterial() || bufferMesh.getScene().defaultMaterial;
var materialIndex = null;
if (babylonMaterial) {
if (bufferMesh instanceof BABYLON.LinesMesh) {
// get the color from the lines mesh and set it in the material
var material = {
name: bufferMesh.name + ' material'
};
if (!bufferMesh.color.equals(BABYLON.Color3.White()) || bufferMesh.alpha < 1) {
material.pbrMetallicRoughness = {
baseColorFactor: bufferMesh.color.asArray().concat([bufferMesh.alpha])
};
}
this._materials.push(material);
materialIndex = this._materials.length - 1;
}
else if (babylonMaterial instanceof BABYLON.MultiMaterial) {
var subMaterial = babylonMaterial.subMaterials[submesh.materialIndex];
if (subMaterial) {
babylonMaterial = subMaterial;
materialIndex = this._materialMap[babylonMaterial.uniqueId];
}
}
else {
materialIndex = this._materialMap[babylonMaterial.uniqueId];
}
}
var glTFMaterial = materialIndex != null ? this._materials[materialIndex] : null;
var meshPrimitive = { attributes: {} };
this.setPrimitiveMode(meshPrimitive, primitiveMode);
for (var _c = 0, attributeData_2 = attributeData; _c < attributeData_2.length; _c++) {
var attribute = attributeData_2[_c];
var attributeKind = attribute.kind;
if (attributeKind === BABYLON.VertexBuffer.UVKind || attributeKind === BABYLON.VertexBuffer.UV2Kind) {
if (glTFMaterial && !this._glTFMaterialExporter._hasTexturesPresent(glTFMaterial)) {
continue;
}
}
var vertexData = bufferMesh.getVerticesData(attributeKind);
if (vertexData) {
var vertexBuffer = this.getVertexBufferFromMesh(attributeKind, bufferMesh);
if (vertexBuffer) {
var stride = vertexBuffer.getSize();
var bufferViewIndex = attribute.bufferViewIndex;
if (bufferViewIndex != undefined) { // check to see if bufferviewindex has a numeric value assigned.
minMax = { min: null, max: null };
if (attributeKind == BABYLON.VertexBuffer.PositionKind) {
minMax = Exporter._GLTFUtilities._CalculateMinMaxPositions(vertexData, 0, vertexData.length / stride, this._convertToRightHandedSystem);
}
var accessor = Exporter._GLTFUtilities._CreateAccessor(bufferViewIndex, attributeKind + " - " + babylonTransformNode.name, attribute.accessorType, 5126 /* FLOAT */, vertexData.length / stride, 0, minMax.min, minMax.max);
this._accessors.push(accessor);
this.setAttributeKind(meshPrimitive, attributeKind);
if (meshPrimitive.attributes.TEXCOORD_0 != null || meshPrimitive.attributes.TEXCOORD_1 != null) {
uvCoordsPresent = true;
}
}
}
}
}
if (indexBufferViewIndex) {
// Create accessor
var accessor = Exporter._GLTFUtilities._CreateAccessor(indexBufferViewIndex, "indices - " + babylonTransformNode.name, "SCALAR" /* SCALAR */, 5125 /* UNSIGNED_INT */, submesh.indexCount, submesh.indexStart * 4, null, null);
this._accessors.push(accessor);
meshPrimitive.indices = this._accessors.length - 1;
}
if (materialIndex != null && Object.keys(meshPrimitive.attributes).length > 0) {
var sideOrientation = babylonMaterial.sideOrientation;
if (this._convertToRightHandedSystem && sideOrientation === BABYLON.Material.ClockWiseSideOrientation) {
//Overwrite the indices to be counter-clockwise
var byteOffset = indexBufferViewIndex != null ? this._bufferViews[indexBufferViewIndex].byteOffset : null;
if (byteOffset == null) {
byteOffset = 0;
}
var babylonIndices = null;
if (indexBufferViewIndex != null) {
babylonIndices = bufferMesh.getIndices();
}
if (babylonIndices) {
this.reorderIndicesBasedOnPrimitiveMode(submesh, primitiveMode, babylonIndices, byteOffset, binaryWriter);
}
else {
for (var _d = 0, attributeData_3 = attributeData; _d < attributeData_3.length; _d++) {
var attribute = attributeData_3[_d];
var vertexData = bufferMesh.getVerticesData(attribute.kind);
if (vertexData) {
var byteOffset_1 = this._bufferViews[vertexAttributeBufferViews[attribute.kind]].byteOffset;
if (!byteOffset_1) {
byteOffset_1 = 0;
}
this.reorderVertexAttributeDataBasedOnPrimitiveMode(submesh, primitiveMode, sideOrientation, attribute.kind, vertexData, byteOffset_1, binaryWriter);
}
}
}
}
if (!uvCoordsPresent && this._glTFMaterialExporter._hasTexturesPresent(this._materials[materialIndex])) {
var newMat = this._glTFMaterialExporter._stripTexturesFromMaterial(this._materials[materialIndex]);
this._materials.push(newMat);
materialIndex = this._materials.length - 1;
}
meshPrimitive.material = materialIndex;
}
mesh.primitives.push(meshPrimitive);
var promise = this._extensionsPostExportMeshPrimitiveAsync("postExport", meshPrimitive, submesh, binaryWriter);
if (promise) {
promises.push();
}
}
}
}
return Promise.all(promises).then(function () {
/* do nothing */
});
};
/**
* Creates a glTF scene based on the array of meshes
* Returns the the total byte offset
* @param babylonScene Babylon scene to get the mesh data from
* @param binaryWriter Buffer to write binary data to
*/
_Exporter.prototype.createSceneAsync = function (babylonScene, binaryWriter) {
var _this = this;
var scene = { nodes: [] };
var glTFNodeIndex;
var glTFNode;
var directDescendents;
var nodes = babylonScene.transformNodes.concat(babylonScene.meshes);
return this._glTFMaterialExporter._convertMaterialsToGLTFAsync(babylonScene.materials, "image/png" /* PNG */, true).then(function () {
return _this.createNodeMapAndAnimationsAsync(babylonScene, nodes, _this._shouldExportTransformNode, binaryWriter).then(function (nodeMap) {
_this._nodeMap = nodeMap;
_this._totalByteLength = binaryWriter.getByteOffset();
if (_this._totalByteLength == undefined) {
throw new Error("undefined byte length!");
}
// Build Hierarchy with the node map.
for (var _i = 0, nodes_1 = nodes; _i < nodes_1.length; _i++) {
var babylonTransformNode = nodes_1[_i];
glTFNodeIndex = _this._nodeMap[babylonTransformNode.uniqueId];
if (glTFNodeIndex != null) {
glTFNode = _this._nodes[glTFNodeIndex];
if (!babylonTransformNode.parent) {
if (!_this._shouldExportTransformNode(babylonTransformNode)) {
BABYLON.Tools.Log("Omitting " + babylonTransformNode.name + " from scene.");
}
else {
if (_this._convertToRightHandedSystem) {
if (glTFNode.translation) {
glTFNode.translation[2] *= -1;
glTFNode.translation[0] *= -1;
}
glTFNode.rotation = glTFNode.rotation ? BABYLON.Quaternion.FromArray([0, 1, 0, 0]).multiply(BABYLON.Quaternion.FromArray(glTFNode.rotation)).asArray() : (BABYLON.Quaternion.FromArray([0, 1, 0, 0])).asArray();
}
scene.nodes.push(glTFNodeIndex);
}
}
directDescendents = babylonTransformNode.getDescendants(true);
if (!glTFNode.children && directDescendents && directDescendents.length) {
var children = [];
for (var _a = 0, directDescendents_1 = directDescendents; _a < directDescendents_1.length; _a++) {
var descendent = directDescendents_1[_a];
if (_this._nodeMap[descendent.uniqueId] != null) {
children.push(_this._nodeMap[descendent.uniqueId]);
}
}
if (children.length) {
glTFNode.children = children;
}
}
}
}
if (scene.nodes.length) {
_this._scenes.push(scene);
}
});
});
};
/**
* Creates a mapping of Node unique id to node index and handles animations
* @param babylonScene Babylon Scene
* @param nodes Babylon transform nodes
* @param shouldExportTransformNode Callback specifying if a transform node should be exported
* @param binaryWriter Buffer to write binary data to
* @returns Node mapping of unique id to index
*/
_Exporter.prototype.createNodeMapAndAnimationsAsync = function (babylonScene, nodes, shouldExportTransformNode, binaryWriter) {
var _this = this;
var promiseChain = Promise.resolve();
var nodeMap = {};
var nodeIndex;
var runtimeGLTFAnimation = {
name: 'runtime animations',
channels: [],
samplers: []
};
var idleGLTFAnimations = [];
var _loop_1 = function (babylonTransformNode) {
if (shouldExportTransformNode(babylonTransformNode)) {
promiseChain = promiseChain.then(function () {
return _this.createNodeAsync(babylonTransformNode, binaryWriter).then(function (node) {
var directDescendents = babylonTransformNode.getDescendants(true, function (node) { return (node instanceof BABYLON.TransformNode); });
if (directDescendents.length || node.mesh != null) {
_this._nodes.push(node);
nodeIndex = _this._nodes.length - 1;
nodeMap[babylonTransformNode.uniqueId] = nodeIndex;
}
if (!babylonScene.animationGroups.length && babylonTransformNode.animations.length) {
Exporter._GLTFAnimation._CreateNodeAnimationFromTransformNodeAnimations(babylonTransformNode, runtimeGLTFAnimation, idleGLTFAnimations, nodeMap, _this._nodes, binaryWriter, _this._bufferViews, _this._accessors, _this._convertToRightHandedSystem, _this._animationSampleRate);
}
});
});
}
else {
"Excluding mesh " + babylonTransformNode.name;
}
};
for (var _i = 0, nodes_2 = nodes; _i < nodes_2.length; _i++) {
var babylonTransformNode = nodes_2[_i];
_loop_1(babylonTransformNode);
}
return promiseChain.then(function () {
if (runtimeGLTFAnimation.channels.length && runtimeGLTFAnimation.samplers.length) {
_this._animations.push(runtimeGLTFAnimation);
}
idleGLTFAnimations.forEach(function (idleGLTFAnimation) {
if (idleGLTFAnimation.channels.length && idleGLTFAnimation.samplers.length) {
_this._animations.push(idleGLTFAnimation);
}
});
if (babylonScene.animationGroups.length) {
Exporter._GLTFAnimation._CreateNodeAnimationFromAnimationGroups(babylonScene, _this._animations, nodeMap, _this._nodes, binaryWriter, _this._bufferViews, _this._accessors, _this._convertToRightHandedSystem, _this._animationSampleRate);
}
return nodeMap;
});
};
/**
* Creates a glTF node from a Babylon mesh
* @param babylonMesh Source Babylon mesh
* @param binaryWriter Buffer for storing geometry data
* @returns glTF node
*/
_Exporter.prototype.createNodeAsync = function (babylonTransformNode, binaryWriter) {
var _this = this;
return Promise.resolve().then(function () {
// create node to hold translation/rotation/scale and the mesh
var node = {};
// create mesh
var mesh = { primitives: [] };
if (babylonTransformNode.name) {
node.name = babylonTransformNode.name;
}
// Set transformation
_this.setNodeTransformation(node, babylonTransformNode);
return _this.setPrimitiveAttributesAsync(mesh, babylonTransformNode, binaryWriter).then(function () {
if (mesh.primitives.length) {
_this._meshes.push(mesh);
node.mesh = _this._meshes.length - 1;
}
return node;
});
});
};
_Exporter._ExtensionNames = new Array();
_Exporter._ExtensionFactories = {};
return _Exporter;
}());
Exporter._Exporter = _Exporter;
/**
* @hidden
*
* Stores glTF binary data. If the array buffer byte length is exceeded, it doubles in size dynamically
*/
var _BinaryWriter = /** @class */ (function () {
/**
* Initialize binary writer with an initial byte length
* @param byteLength Initial byte length of the array buffer
*/
function _BinaryWriter(byteLength) {
this._arrayBuffer = new ArrayBuffer(byteLength);
this._dataView = new DataView(this._arrayBuffer);
this._byteOffset = 0;
}
/**
* Resize the array buffer to the specified byte length
* @param byteLength
*/
_BinaryWriter.prototype.resizeBuffer = function (byteLength) {
var newBuffer = new ArrayBuffer(byteLength);
var oldUint8Array = new Uint8Array(this._arrayBuffer);
var newUint8Array = new Uint8Array(newBuffer);
for (var i = 0, length_8 = newUint8Array.byteLength; i < length_8; ++i) {
newUint8Array[i] = oldUint8Array[i];
}
this._arrayBuffer = newBuffer;
this._dataView = new DataView(this._arrayBuffer);
return newBuffer;
};
/**
* Get an array buffer with the length of the byte offset
* @returns ArrayBuffer resized to the byte offset
*/
_BinaryWriter.prototype.getArrayBuffer = function () {
return this.resizeBuffer(this.getByteOffset());
};
/**
* Get the byte offset of the array buffer
* @returns byte offset
*/
_BinaryWriter.prototype.getByteOffset = function () {
if (this._byteOffset == undefined) {
throw new Error("Byte offset is undefined!");
}
return this._byteOffset;
};
/**
* Stores an UInt8 in the array buffer
* @param entry
* @param byteOffset If defined, specifies where to set the value as an offset.
*/
_BinaryWriter.prototype.setUInt8 = function (entry, byteOffset) {
if (byteOffset != null) {
if (byteOffset < this._byteOffset) {
this._dataView.setUint8(byteOffset, entry);
}
else {
BABYLON.Tools.Error('BinaryWriter: byteoffset is greater than the current binary buffer length!');
}
}
else {
if (this._byteOffset + 1 > this._arrayBuffer.byteLength) {
this.resizeBuffer(this._arrayBuffer.byteLength * 2);
}
this._dataView.setUint8(this._byteOffset++, entry);
}
};
/**
* Gets an UInt32 in the array buffer
* @param entry
* @param byteOffset If defined, specifies where to set the value as an offset.
*/
_BinaryWriter.prototype.getUInt32 = function (byteOffset) {
if (byteOffset < this._byteOffset) {
return this._dataView.getUint32(byteOffset, true);
}
else {
BABYLON.Tools.Error('BinaryWriter: byteoffset is greater than the current binary buffer length!');
throw new Error('BinaryWriter: byteoffset is greater than the current binary buffer length!');
}
};
_BinaryWriter.prototype.getVector3Float32FromRef = function (vector3, byteOffset) {
if (byteOffset + 8 > this._byteOffset) {
BABYLON.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!");
}
else {
vector3.x = this._dataView.getFloat32(byteOffset, true);
vector3.y = this._dataView.getFloat32(byteOffset + 4, true);
vector3.z = this._dataView.getFloat32(byteOffset + 8, true);
}
};
_BinaryWriter.prototype.setVector3Float32FromRef = function (vector3, byteOffset) {
if (byteOffset + 8 > this._byteOffset) {
BABYLON.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!");
}
else {
this._dataView.setFloat32(byteOffset, vector3.x, true);
this._dataView.setFloat32(byteOffset + 4, vector3.y, true);
this._dataView.setFloat32(byteOffset + 8, vector3.z, true);
}
};
_BinaryWriter.prototype.getVector4Float32FromRef = function (vector4, byteOffset) {
if (byteOffset + 12 > this._byteOffset) {
BABYLON.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!");
}
else {
vector4.x = this._dataView.getFloat32(byteOffset, true);
vector4.y = this._dataView.getFloat32(byteOffset + 4, true);
vector4.z = this._dataView.getFloat32(byteOffset + 8, true);
vector4.w = this._dataView.getFloat32(byteOffset + 12, true);
}
};
_BinaryWriter.prototype.setVector4Float32FromRef = function (vector4, byteOffset) {
if (byteOffset + 12 > this._byteOffset) {
BABYLON.Tools.Error("BinaryWriter: byteoffset is greater than the current binary buffer length!");
}
else {
this._dataView.setFloat32(byteOffset, vector4.x, true);
this._dataView.setFloat32(byteOffset + 4, vector4.y, true);
this._dataView.setFloat32(byteOffset + 8, vector4.z, true);
this._dataView.setFloat32(byteOffset + 12, vector4.w, true);
}
};
/**
* Stores a Float32 in the array buffer
* @param entry
*/
_BinaryWriter.prototype.setFloat32 = function (entry, byteOffset) {
if (isNaN(entry)) {
BABYLON.Tools.Error('Invalid data being written!');
}
if (byteOffset != null) {
if (byteOffset < this._byteOffset) {
this._dataView.setFloat32(byteOffset, entry, true);
}
else {
BABYLON.Tools.Error('BinaryWriter: byteoffset is greater than the current binary length!');
}
}
if (this._byteOffset + 4 > this._arrayBuffer.byteLength) {
this.resizeBuffer(this._arrayBuffer.byteLength * 2);
}
this._dataView.setFloat32(this._byteOffset, entry, true);
this._byteOffset += 4;
};
/**
* Stores an UInt32 in the array buffer
* @param entry
* @param byteOffset If defined, specifies where to set the value as an offset.
*/
_BinaryWriter.prototype.setUInt32 = function (entry, byteOffset) {
if (byteOffset != null) {
if (byteOffset < this._byteOffset) {
this._dataView.setUint32(byteOffset, entry, true);
}
else {
BABYLON.Tools.Error('BinaryWriter: byteoffset is greater than the current binary buffer length!');
}
}
else {
if (this._byteOffset + 4 > this._arrayBuffer.byteLength) {
this.resizeBuffer(this._arrayBuffer.byteLength * 2);
}
this._dataView.setUint32(this._byteOffset, entry, true);
this._byteOffset += 4;
}
};
return _BinaryWriter;
}());
Exporter._BinaryWriter = _BinaryWriter;
})(Exporter = GLTF2.Exporter || (GLTF2.Exporter = {}));
})(GLTF2 = BABYLON.GLTF2 || (BABYLON.GLTF2 = {}));
})(BABYLON || (BABYLON = {}));
//# sourceMappingURL=babylon.glTFExporter.js.map
///
var BABYLON;
(function (BABYLON) {
/**
* Class for holding and downloading glTF file data
*/
var GLTFData = /** @class */ (function () {
/**
* Initializes the glTF file object
*/
function GLTFData() {
this.glTFFiles = {};
}
/**
* Downloads the glTF data as files based on their names and data
*/
GLTFData.prototype.downloadFiles = function () {
/**
* Checks for a matching suffix at the end of a string (for ES5 and lower)
* @param str Source string
* @param suffix Suffix to search for in the source string
* @returns Boolean indicating whether the suffix was found (true) or not (false)
*/
function endsWith(str, suffix) {
return str.indexOf(suffix, str.length - suffix.length) !== -1;
}
for (var key in this.glTFFiles) {
var link = document.createElement('a');
document.body.appendChild(link);
link.setAttribute("type", "hidden");
link.download = key;
var blob = this.glTFFiles[key];
var mimeType = void 0;
if (endsWith(key, ".glb")) {
mimeType = { type: "model/gltf-binary" };
}
else if (endsWith(key, ".bin")) {
mimeType = { type: "application/octet-stream" };
}
else if (endsWith(key, ".gltf")) {
mimeType = { type: "model/gltf+json" };
}
else if (endsWith(key, ".jpeg" || ".jpg")) {
mimeType = { type: "image/jpeg" /* JPEG */ };
}
else if (endsWith(key, ".png")) {
mimeType = { type: "image/png" /* PNG */ };
}
link.href = window.URL.createObjectURL(new Blob([blob], mimeType));
link.click();
}
};
return GLTFData;
}());
BABYLON.GLTFData = GLTFData;
})(BABYLON || (BABYLON = {}));
//# sourceMappingURL=babylon.glTFData.js.map
///
var BABYLON;
(function (BABYLON) {
var GLTF2;
(function (GLTF2) {
var Exporter;
(function (Exporter) {
/**
* Utility methods for working with glTF material conversion properties. This class should only be used internally
* @hidden
*/
var _GLTFMaterialExporter = /** @class */ (function () {
function _GLTFMaterialExporter(exporter) {
/**
* Mapping to store textures
*/
this._textureMap = {};
this._textureMap = {};
this._exporter = exporter;
}
/**
* Specifies if two colors are approximately equal in value
* @param color1 first color to compare to
* @param color2 second color to compare to
* @param epsilon threshold value
*/
_GLTFMaterialExporter.FuzzyEquals = function (color1, color2, epsilon) {
return BABYLON.Scalar.WithinEpsilon(color1.r, color2.r, epsilon) &&
BABYLON.Scalar.WithinEpsilon(color1.g, color2.g, epsilon) &&
BABYLON.Scalar.WithinEpsilon(color1.b, color2.b, epsilon);
};
/**
* Gets the materials from a Babylon scene and converts them to glTF materials
* @param scene babylonjs scene
* @param mimeType texture mime type
* @param images array of images
* @param textures array of textures
* @param materials array of materials
* @param imageData mapping of texture names to base64 textures
* @param hasTextureCoords specifies if texture coordinates are present on the material
*/
_GLTFMaterialExporter.prototype._convertMaterialsToGLTFAsync = function (babylonMaterials, mimeType, hasTextureCoords) {
var promises = [];
for (var _i = 0, babylonMaterials_1 = babylonMaterials; _i < babylonMaterials_1.length; _i++) {
var babylonMaterial = babylonMaterials_1[_i];
if (babylonMaterial instanceof BABYLON.StandardMaterial) {
promises.push(this._convertStandardMaterialAsync(babylonMaterial, mimeType, hasTextureCoords));
}
else if (babylonMaterial instanceof BABYLON.PBRMetallicRoughnessMaterial) {
promises.push(this._convertPBRMetallicRoughnessMaterialAsync(babylonMaterial, mimeType, hasTextureCoords));
}
else if (babylonMaterial instanceof BABYLON.PBRMaterial) {
promises.push(this._convertPBRMaterialAsync(babylonMaterial, mimeType, hasTextureCoords));
}
else {
BABYLON.Tools.Warn("Unsupported material type: " + babylonMaterial.name);
}
}
return Promise.all(promises).then(function () { });
};
/**
* Makes a copy of the glTF material without the texture parameters
* @param originalMaterial original glTF material
* @returns glTF material without texture parameters
*/
_GLTFMaterialExporter.prototype._stripTexturesFromMaterial = function (originalMaterial) {
var newMaterial = {};
if (originalMaterial) {
newMaterial.name = originalMaterial.name;
newMaterial.doubleSided = originalMaterial.doubleSided;
newMaterial.alphaMode = originalMaterial.alphaMode;
newMaterial.alphaCutoff = originalMaterial.alphaCutoff;
newMaterial.emissiveFactor = originalMaterial.emissiveFactor;
var originalPBRMetallicRoughness = originalMaterial.pbrMetallicRoughness;
if (originalPBRMetallicRoughness) {
newMaterial.pbrMetallicRoughness = {};
newMaterial.pbrMetallicRoughness.baseColorFactor = originalPBRMetallicRoughness.baseColorFactor;
newMaterial.pbrMetallicRoughness.metallicFactor = originalPBRMetallicRoughness.metallicFactor;
newMaterial.pbrMetallicRoughness.roughnessFactor = originalPBRMetallicRoughness.roughnessFactor;
}
}
return newMaterial;
};
/**
* Specifies if the material has any texture parameters present
* @param material glTF Material
* @returns boolean specifying if texture parameters are present
*/
_GLTFMaterialExporter.prototype._hasTexturesPresent = function (material) {
if (material.emissiveTexture || material.normalTexture || material.occlusionTexture) {
return true;
}
var pbrMat = material.pbrMetallicRoughness;
if (pbrMat) {
if (pbrMat.baseColorTexture || pbrMat.metallicRoughnessTexture) {
return true;
}
}
return false;
};
/**
* Converts a Babylon StandardMaterial to a glTF Metallic Roughness Material
* @param babylonStandardMaterial
* @returns glTF Metallic Roughness Material representation
*/
_GLTFMaterialExporter.prototype._convertToGLTFPBRMetallicRoughness = function (babylonStandardMaterial) {
var P0 = new BABYLON.Vector2(0, 1);
var P1 = new BABYLON.Vector2(0, 0.1);
var P2 = new BABYLON.Vector2(0, 0.1);
var P3 = new BABYLON.Vector2(1300, 0.1);
/**
* Given the control points, solve for x based on a given t for a cubic bezier curve
* @param t a value between 0 and 1
* @param p0 first control point
* @param p1 second control point
* @param p2 third control point
* @param p3 fourth control point
* @returns number result of cubic bezier curve at the specified t
*/
function _cubicBezierCurve(t, p0, p1, p2, p3) {
return ((1 - t) * (1 - t) * (1 - t) * p0 +
3 * (1 - t) * (1 - t) * t * p1 +
3 * (1 - t) * t * t * p2 +
t * t * t * p3);
}
/**
* Evaluates a specified specular power value to determine the appropriate roughness value,
* based on a pre-defined cubic bezier curve with specular on the abscissa axis (x-axis)
* and roughness on the ordinant axis (y-axis)
* @param specularPower specular power of standard material
* @returns Number representing the roughness value
*/
function _solveForRoughness(specularPower) {
var t = Math.pow(specularPower / P3.x, 0.333333);
return _cubicBezierCurve(t, P0.y, P1.y, P2.y, P3.y);
}
var diffuse = babylonStandardMaterial.diffuseColor.toLinearSpace().scale(0.5);
var opacity = babylonStandardMaterial.alpha;
var specularPower = BABYLON.Scalar.Clamp(babylonStandardMaterial.specularPower, 0, _GLTFMaterialExporter._MaxSpecularPower);
var roughness = _solveForRoughness(specularPower);
var glTFPbrMetallicRoughness = {
baseColorFactor: [
diffuse.r,
diffuse.g,
diffuse.b,
opacity
],
metallicFactor: 0,
roughnessFactor: roughness,
};
return glTFPbrMetallicRoughness;
};
/**
* Computes the metallic factor
* @param diffuse diffused value
* @param specular specular value
* @param oneMinusSpecularStrength one minus the specular strength
* @returns metallic value
*/
_GLTFMaterialExporter._SolveMetallic = function (diffuse, specular, oneMinusSpecularStrength) {
if (specular < this._DielectricSpecular.r) {
this._DielectricSpecular;
return 0;
}
var a = this._DielectricSpecular.r;
var b = diffuse * oneMinusSpecularStrength / (1.0 - this._DielectricSpecular.r) + specular - 2.0 * this._DielectricSpecular.r;
var c = this._DielectricSpecular.r - specular;
var D = b * b - 4.0 * a * c;
return BABYLON.Scalar.Clamp((-b + Math.sqrt(D)) / (2.0 * a), 0, 1);
};
/**
* Gets the glTF alpha mode from the Babylon Material
* @param babylonMaterial Babylon Material
* @returns The Babylon alpha mode value
*/
_GLTFMaterialExporter.prototype._getAlphaMode = function (babylonMaterial) {
if (babylonMaterial.needAlphaBlending()) {
return "BLEND" /* BLEND */;
}
else if (babylonMaterial.needAlphaTesting()) {
return "MASK" /* MASK */;
}
else {
return "OPAQUE" /* OPAQUE */;
}
};
/**
* Converts a Babylon Standard Material to a glTF Material
* @param babylonStandardMaterial BJS Standard Material
* @param mimeType mime type to use for the textures
* @param images array of glTF image interfaces
* @param textures array of glTF texture interfaces
* @param materials array of glTF material interfaces
* @param imageData map of image file name to data
* @param hasTextureCoords specifies if texture coordinates are present on the submesh to determine if textures should be applied
*/
_GLTFMaterialExporter.prototype._convertStandardMaterialAsync = function (babylonStandardMaterial, mimeType, hasTextureCoords) {
var materialMap = this._exporter._materialMap;
var materials = this._exporter._materials;
var alphaMode = this._getAlphaMode(babylonStandardMaterial);
var promises = [];
var glTFPbrMetallicRoughness = this._convertToGLTFPBRMetallicRoughness(babylonStandardMaterial);
var glTFMaterial = { name: babylonStandardMaterial.name };
if (babylonStandardMaterial.backFaceCulling != null && !babylonStandardMaterial.backFaceCulling) {
if (!babylonStandardMaterial.twoSidedLighting) {
BABYLON.Tools.Warn(babylonStandardMaterial.name + ": Back-face culling enabled and two-sided lighting disabled is not supported in glTF.");
}
glTFMaterial.doubleSided = true;
}
if (hasTextureCoords) {
if (babylonStandardMaterial.diffuseTexture) {
promises.push(this._exportTextureAsync(babylonStandardMaterial.diffuseTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFPbrMetallicRoughness.baseColorTexture = glTFTexture;
}
}));
}
if (babylonStandardMaterial.bumpTexture) {
promises.push(this._exportTextureAsync(babylonStandardMaterial.bumpTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFMaterial.normalTexture = glTFTexture;
if (babylonStandardMaterial.bumpTexture != null && babylonStandardMaterial.bumpTexture.level !== 1) {
glTFMaterial.normalTexture.scale = babylonStandardMaterial.bumpTexture.level;
}
}
}));
}
if (babylonStandardMaterial.emissiveTexture) {
glTFMaterial.emissiveFactor = [1.0, 1.0, 1.0];
promises.push(this._exportTextureAsync(babylonStandardMaterial.emissiveTexture, mimeType).then(function (glTFEmissiveTexture) {
if (glTFEmissiveTexture) {
glTFMaterial.emissiveTexture = glTFEmissiveTexture;
}
}));
}
if (babylonStandardMaterial.ambientTexture) {
promises.push(this._exportTextureAsync(babylonStandardMaterial.ambientTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
var occlusionTexture = {
index: glTFTexture.index
};
glTFMaterial.occlusionTexture = occlusionTexture;
occlusionTexture.strength = 1.0;
}
}));
}
}
if (babylonStandardMaterial.alpha < 1.0 || babylonStandardMaterial.opacityTexture) {
if (babylonStandardMaterial.alphaMode === BABYLON.Engine.ALPHA_COMBINE) {
glTFMaterial.alphaMode = "BLEND" /* BLEND */;
}
else {
BABYLON.Tools.Warn(babylonStandardMaterial.name + ": glTF 2.0 does not support alpha mode: " + babylonStandardMaterial.alphaMode.toString());
}
}
if (babylonStandardMaterial.emissiveColor && !_GLTFMaterialExporter.FuzzyEquals(babylonStandardMaterial.emissiveColor, BABYLON.Color3.Black(), _GLTFMaterialExporter._Epsilon)) {
glTFMaterial.emissiveFactor = babylonStandardMaterial.emissiveColor.asArray();
}
glTFMaterial.pbrMetallicRoughness = glTFPbrMetallicRoughness;
if (alphaMode !== "OPAQUE" /* OPAQUE */) {
switch (alphaMode) {
case "BLEND" /* BLEND */: {
glTFMaterial.alphaMode = "BLEND" /* BLEND */;
break;
}
case "MASK" /* MASK */: {
glTFMaterial.alphaMode = "MASK" /* MASK */;
glTFMaterial.alphaCutoff = babylonStandardMaterial.alphaCutOff;
break;
}
default: {
BABYLON.Tools.Warn("Unsupported alpha mode " + alphaMode);
}
}
}
materials.push(glTFMaterial);
materialMap[babylonStandardMaterial.uniqueId] = materials.length - 1;
return Promise.all(promises).then(function () { });
};
/**
* Converts a Babylon PBR Metallic Roughness Material to a glTF Material
* @param babylonPBRMetalRoughMaterial BJS PBR Metallic Roughness Material
* @param mimeType mime type to use for the textures
* @param images array of glTF image interfaces
* @param textures array of glTF texture interfaces
* @param materials array of glTF material interfaces
* @param imageData map of image file name to data
* @param hasTextureCoords specifies if texture coordinates are present on the submesh to determine if textures should be applied
*/
_GLTFMaterialExporter.prototype._convertPBRMetallicRoughnessMaterialAsync = function (babylonPBRMetalRoughMaterial, mimeType, hasTextureCoords) {
var materialMap = this._exporter._materialMap;
var materials = this._exporter._materials;
var promises = [];
var glTFPbrMetallicRoughness = {};
if (babylonPBRMetalRoughMaterial.baseColor) {
glTFPbrMetallicRoughness.baseColorFactor = [
babylonPBRMetalRoughMaterial.baseColor.r,
babylonPBRMetalRoughMaterial.baseColor.g,
babylonPBRMetalRoughMaterial.baseColor.b,
babylonPBRMetalRoughMaterial.alpha
];
}
if (babylonPBRMetalRoughMaterial.metallic != null && babylonPBRMetalRoughMaterial.metallic !== 1) {
glTFPbrMetallicRoughness.metallicFactor = babylonPBRMetalRoughMaterial.metallic;
}
if (babylonPBRMetalRoughMaterial.roughness != null && babylonPBRMetalRoughMaterial.roughness !== 1) {
glTFPbrMetallicRoughness.roughnessFactor = babylonPBRMetalRoughMaterial.roughness;
}
var glTFMaterial = {
name: babylonPBRMetalRoughMaterial.name
};
if (babylonPBRMetalRoughMaterial.doubleSided) {
glTFMaterial.doubleSided = babylonPBRMetalRoughMaterial.doubleSided;
}
var alphaMode = null;
if (babylonPBRMetalRoughMaterial.transparencyMode != null) {
alphaMode = this._getAlphaMode(babylonPBRMetalRoughMaterial);
if (alphaMode) {
if (alphaMode !== "OPAQUE" /* OPAQUE */) { //glTF defaults to opaque
glTFMaterial.alphaMode = alphaMode;
if (alphaMode === "MASK" /* MASK */) {
glTFMaterial.alphaCutoff = babylonPBRMetalRoughMaterial.alphaCutOff;
}
}
}
}
if (hasTextureCoords) {
if (babylonPBRMetalRoughMaterial.baseTexture != null) {
promises.push(this._exportTextureAsync(babylonPBRMetalRoughMaterial.baseTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFPbrMetallicRoughness.baseColorTexture = glTFTexture;
}
}));
}
if (babylonPBRMetalRoughMaterial.normalTexture) {
promises.push(this._exportTextureAsync(babylonPBRMetalRoughMaterial.normalTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFMaterial.normalTexture = glTFTexture;
if (babylonPBRMetalRoughMaterial.normalTexture.level !== 1) {
glTFMaterial.normalTexture.scale = babylonPBRMetalRoughMaterial.normalTexture.level;
}
}
}));
}
if (babylonPBRMetalRoughMaterial.occlusionTexture) {
promises.push(this._exportTextureAsync(babylonPBRMetalRoughMaterial.occlusionTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFMaterial.occlusionTexture = glTFTexture;
if (babylonPBRMetalRoughMaterial.occlusionStrength != null) {
glTFMaterial.occlusionTexture.strength = babylonPBRMetalRoughMaterial.occlusionStrength;
}
}
}));
}
if (babylonPBRMetalRoughMaterial.emissiveTexture) {
promises.push(this._exportTextureAsync(babylonPBRMetalRoughMaterial.emissiveTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFMaterial.emissiveTexture = glTFTexture;
}
}));
}
}
if (_GLTFMaterialExporter.FuzzyEquals(babylonPBRMetalRoughMaterial.emissiveColor, BABYLON.Color3.Black(), _GLTFMaterialExporter._Epsilon)) {
glTFMaterial.emissiveFactor = babylonPBRMetalRoughMaterial.emissiveColor.asArray();
}
glTFMaterial.pbrMetallicRoughness = glTFPbrMetallicRoughness;
materials.push(glTFMaterial);
materialMap[babylonPBRMetalRoughMaterial.uniqueId] = materials.length - 1;
return Promise.all(promises).then(function () { });
};
/**
* Converts an image typed array buffer to a base64 image
* @param buffer typed array buffer
* @param width width of the image
* @param height height of the image
* @param mimeType mimetype of the image
* @returns base64 image string
*/
_GLTFMaterialExporter.prototype._createBase64FromCanvasAsync = function (buffer, width, height, mimeType) {
var _this = this;
return new Promise(function (resolve, reject) {
var hostingScene;
var textureType = BABYLON.Engine.TEXTURETYPE_UNSIGNED_INT;
var engine = _this._exporter._getLocalEngine();
hostingScene = new BABYLON.Scene(engine);
// Create a temporary texture with the texture buffer data
var tempTexture = engine.createRawTexture(buffer, width, height, BABYLON.Engine.TEXTUREFORMAT_RGBA, false, true, BABYLON.Texture.NEAREST_SAMPLINGMODE, null, textureType);
var postProcess = new BABYLON.PostProcess("pass", "pass", null, null, 1, null, BABYLON.Texture.NEAREST_SAMPLINGMODE, engine, false, undefined, BABYLON.Engine.TEXTURETYPE_UNSIGNED_INT, undefined, null, false);
postProcess.getEffect().executeWhenCompiled(function () {
postProcess.onApply = function (effect) {
effect._bindTexture("textureSampler", tempTexture);
};
// Set the size of the texture
engine.setSize(width, height);
hostingScene.postProcessManager.directRender([postProcess], null);
postProcess.dispose();
tempTexture.dispose();
// Read data from WebGL
var canvas = engine.getRenderingCanvas();
if (canvas) {
if (!canvas.toBlob) { // fallback for browsers without "canvas.toBlob"
var dataURL = canvas.toDataURL();
resolve(dataURL);
}
else {
BABYLON.Tools.ToBlob(canvas, function (blob) {
if (blob) {
var fileReader = new FileReader();
fileReader.onload = function (event) {
var base64String = event.target.result;
hostingScene.dispose();
resolve(base64String);
};
fileReader.readAsDataURL(blob);
}
else {
reject("gltfMaterialExporter: Failed to get blob from image canvas!");
}
});
}
}
else {
reject("Engine is missing a canvas!");
}
});
});
};
/**
* Generates a white texture based on the specified width and height
* @param width width of the texture in pixels
* @param height height of the texture in pixels
* @param scene babylonjs scene
* @returns white texture
*/
_GLTFMaterialExporter.prototype._createWhiteTexture = function (width, height, scene) {
var data = new Uint8Array(width * height * 4);
for (var i = 0; i < data.length; i = i + 4) {
data[i] = data[i + 1] = data[i + 2] = data[i + 3] = 0xFF;
}
var rawTexture = BABYLON.RawTexture.CreateRGBATexture(data, width, height, scene);
return rawTexture;
};
/**
* Resizes the two source textures to the same dimensions. If a texture is null, a default white texture is generated. If both textures are null, returns null
* @param texture1 first texture to resize
* @param texture2 second texture to resize
* @param scene babylonjs scene
* @returns resized textures or null
*/
_GLTFMaterialExporter.prototype._resizeTexturesToSameDimensions = function (texture1, texture2, scene) {
var texture1Size = texture1 ? texture1.getSize() : { width: 0, height: 0 };
var texture2Size = texture2 ? texture2.getSize() : { width: 0, height: 0 };
var resizedTexture1;
var resizedTexture2;
if (texture1Size.width < texture2Size.width) {
if (texture1 && texture1 instanceof BABYLON.Texture) {
resizedTexture1 = BABYLON.TextureTools.CreateResizedCopy(texture1, texture2Size.width, texture2Size.height, true);
}
else {
resizedTexture1 = this._createWhiteTexture(texture2Size.width, texture2Size.height, scene);
}
resizedTexture2 = texture2;
}
else if (texture1Size.width > texture2Size.width) {
if (texture2 && texture2 instanceof BABYLON.Texture) {
resizedTexture2 = BABYLON.TextureTools.CreateResizedCopy(texture2, texture1Size.width, texture1Size.height, true);
}
else {
resizedTexture2 = this._createWhiteTexture(texture1Size.width, texture1Size.height, scene);
}
resizedTexture1 = texture1;
}
else {
resizedTexture1 = texture1;
resizedTexture2 = texture2;
}
return {
"texture1": resizedTexture1,
"texture2": resizedTexture2
};
};
/**
* Converts an array of pixels to a Float32Array
* Throws an error if the pixel format is not supported
* @param pixels - array buffer containing pixel values
* @returns Float32 of pixels
*/
_GLTFMaterialExporter.prototype._convertPixelArrayToFloat32 = function (pixels) {
if (pixels instanceof Uint8Array) {
var length_1 = pixels.length;
var buffer = new Float32Array(pixels.length);
for (var i = 0; i < length_1; ++i) {
buffer[i] = pixels[i] / 255;
}
return buffer;
}
else if (pixels instanceof Float32Array) {
return pixels;
}
else {
throw new Error('Unsupported pixel format!');
}
};
/**
* Convert Specular Glossiness Textures to Metallic Roughness
* See link below for info on the material conversions from PBR Metallic/Roughness and Specular/Glossiness
* @link https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness/examples/convert-between-workflows-bjs/js/babylon.pbrUtilities.js
* @param diffuseTexture texture used to store diffuse information
* @param specularGlossinessTexture texture used to store specular and glossiness information
* @param factors specular glossiness material factors
* @param mimeType the mime type to use for the texture
* @returns pbr metallic roughness interface or null
*/
_GLTFMaterialExporter.prototype._convertSpecularGlossinessTexturesToMetallicRoughnessAsync = function (diffuseTexture, specularGlossinessTexture, factors, mimeType) {
var promises = [];
if (!(diffuseTexture || specularGlossinessTexture)) {
return Promise.reject('_ConvertSpecularGlosinessTexturesToMetallicRoughness: diffuse and specular glossiness textures are not defined!');
}
var scene = diffuseTexture ? diffuseTexture.getScene() : specularGlossinessTexture ? specularGlossinessTexture.getScene() : null;
if (scene) {
var resizedTextures = this._resizeTexturesToSameDimensions(diffuseTexture, specularGlossinessTexture, scene);
var diffuseSize = resizedTextures.texture1.getSize();
var diffuseBuffer = void 0;
var specularGlossinessBuffer = void 0;
var width = diffuseSize.width;
var height = diffuseSize.height;
var diffusePixels = resizedTextures.texture1.readPixels();
var specularPixels = resizedTextures.texture2.readPixels();
if (diffusePixels) {
diffuseBuffer = this._convertPixelArrayToFloat32(diffusePixels);
}
else {
return Promise.reject("Failed to retrieve pixels from diffuse texture!");
}
if (specularPixels) {
specularGlossinessBuffer = this._convertPixelArrayToFloat32(specularPixels);
}
else {
return Promise.reject("Failed to retrieve pixels from specular glossiness texture!");
}
var byteLength = specularGlossinessBuffer.byteLength;
var metallicRoughnessBuffer = new Uint8Array(byteLength);
var baseColorBuffer = new Uint8Array(byteLength);
var strideSize = 4;
var maxBaseColor = BABYLON.Color3.Black();
var maxMetallic = 0;
var maxRoughness = 0;
for (var h = 0; h < height; ++h) {
for (var w = 0; w < width; ++w) {
var offset = (width * h + w) * strideSize;
var diffuseColor = new BABYLON.Color3(diffuseBuffer[offset], diffuseBuffer[offset + 1], diffuseBuffer[offset + 2]).toLinearSpace().multiply(factors.diffuseColor);
var specularColor = new BABYLON.Color3(specularGlossinessBuffer[offset], specularGlossinessBuffer[offset + 1], specularGlossinessBuffer[offset + 2]).toLinearSpace().multiply(factors.specularColor);
var glossiness = (specularGlossinessBuffer[offset + 3]) * factors.glossiness;
var specularGlossiness = {
diffuseColor: diffuseColor,
specularColor: specularColor,
glossiness: glossiness
};
var metallicRoughness = this._convertSpecularGlossinessToMetallicRoughness(specularGlossiness);
maxBaseColor.r = Math.max(maxBaseColor.r, metallicRoughness.baseColor.r);
maxBaseColor.g = Math.max(maxBaseColor.g, metallicRoughness.baseColor.g);
maxBaseColor.b = Math.max(maxBaseColor.b, metallicRoughness.baseColor.b);
maxMetallic = Math.max(maxMetallic, metallicRoughness.metallic);
maxRoughness = Math.max(maxRoughness, metallicRoughness.roughness);
baseColorBuffer[offset] = metallicRoughness.baseColor.r * 255;
baseColorBuffer[offset + 1] = metallicRoughness.baseColor.g * 255;
baseColorBuffer[offset + 2] = metallicRoughness.baseColor.b * 255;
baseColorBuffer[offset + 3] = resizedTextures.texture1.hasAlpha ? diffuseBuffer[offset + 3] * 255 : 255;
metallicRoughnessBuffer[offset] = 0;
metallicRoughnessBuffer[offset + 1] = metallicRoughness.roughness * 255;
metallicRoughnessBuffer[offset + 2] = metallicRoughness.metallic * 255;
metallicRoughnessBuffer[offset + 3] = 255;
}
}
// Retrieves the metallic roughness factors from the maximum texture values.
var metallicRoughnessFactors_1 = {
baseColor: maxBaseColor,
metallic: maxMetallic,
roughness: maxRoughness
};
var writeOutMetallicRoughnessTexture = false;
var writeOutBaseColorTexture = false;
for (var h = 0; h < height; ++h) {
for (var w = 0; w < width; ++w) {
var destinationOffset = (width * h + w) * strideSize;
baseColorBuffer[destinationOffset] /= metallicRoughnessFactors_1.baseColor.r > _GLTFMaterialExporter._Epsilon ? metallicRoughnessFactors_1.baseColor.r : 1;
baseColorBuffer[destinationOffset + 1] /= metallicRoughnessFactors_1.baseColor.g > _GLTFMaterialExporter._Epsilon ? metallicRoughnessFactors_1.baseColor.g : 1;
baseColorBuffer[destinationOffset + 2] /= metallicRoughnessFactors_1.baseColor.b > _GLTFMaterialExporter._Epsilon ? metallicRoughnessFactors_1.baseColor.b : 1;
var linearBaseColorPixel = BABYLON.Color3.FromInts(baseColorBuffer[destinationOffset], baseColorBuffer[destinationOffset + 1], baseColorBuffer[destinationOffset + 2]);
var sRGBBaseColorPixel = linearBaseColorPixel.toGammaSpace();
baseColorBuffer[destinationOffset] = sRGBBaseColorPixel.r * 255;
baseColorBuffer[destinationOffset + 1] = sRGBBaseColorPixel.g * 255;
baseColorBuffer[destinationOffset + 2] = sRGBBaseColorPixel.b * 255;
if (!_GLTFMaterialExporter.FuzzyEquals(sRGBBaseColorPixel, BABYLON.Color3.White(), _GLTFMaterialExporter._Epsilon)) {
writeOutBaseColorTexture = true;
}
metallicRoughnessBuffer[destinationOffset + 1] /= metallicRoughnessFactors_1.roughness > _GLTFMaterialExporter._Epsilon ? metallicRoughnessFactors_1.roughness : 1;
metallicRoughnessBuffer[destinationOffset + 2] /= metallicRoughnessFactors_1.metallic > _GLTFMaterialExporter._Epsilon ? metallicRoughnessFactors_1.metallic : 1;
var metallicRoughnessPixel = BABYLON.Color3.FromInts(255, metallicRoughnessBuffer[destinationOffset + 1], metallicRoughnessBuffer[destinationOffset + 2]);
if (!_GLTFMaterialExporter.FuzzyEquals(metallicRoughnessPixel, BABYLON.Color3.White(), _GLTFMaterialExporter._Epsilon)) {
writeOutMetallicRoughnessTexture = true;
}
}
}
if (writeOutMetallicRoughnessTexture) {
var promise = this._createBase64FromCanvasAsync(metallicRoughnessBuffer, width, height, mimeType).then(function (metallicRoughnessBase64) {
metallicRoughnessFactors_1.metallicRoughnessTextureBase64 = metallicRoughnessBase64;
});
promises.push(promise);
}
if (writeOutBaseColorTexture) {
var promise = this._createBase64FromCanvasAsync(baseColorBuffer, width, height, mimeType).then(function (baseColorBase64) {
metallicRoughnessFactors_1.baseColorTextureBase64 = baseColorBase64;
});
promises.push(promise);
}
return Promise.all(promises).then(function () {
return metallicRoughnessFactors_1;
});
}
else {
return Promise.reject("_ConvertSpecularGlossinessTexturesToMetallicRoughness: Scene from textures is missing!");
}
};
/**
* Converts specular glossiness material properties to metallic roughness
* @param specularGlossiness interface with specular glossiness material properties
* @returns interface with metallic roughness material properties
*/
_GLTFMaterialExporter.prototype._convertSpecularGlossinessToMetallicRoughness = function (specularGlossiness) {
var diffusePerceivedBrightness = this._getPerceivedBrightness(specularGlossiness.diffuseColor);
var specularPerceivedBrightness = this._getPerceivedBrightness(specularGlossiness.specularColor);
var oneMinusSpecularStrength = 1 - this._getMaxComponent(specularGlossiness.specularColor);
var metallic = _GLTFMaterialExporter._SolveMetallic(diffusePerceivedBrightness, specularPerceivedBrightness, oneMinusSpecularStrength);
var baseColorFromDiffuse = specularGlossiness.diffuseColor.scale(oneMinusSpecularStrength / (1.0 - _GLTFMaterialExporter._DielectricSpecular.r) / Math.max(1 - metallic, _GLTFMaterialExporter._Epsilon));
var baseColorFromSpecular = specularGlossiness.specularColor.subtract(_GLTFMaterialExporter._DielectricSpecular.scale(1 - metallic)).scale(1 / Math.max(metallic, _GLTFMaterialExporter._Epsilon));
var baseColor = BABYLON.Color3.Lerp(baseColorFromDiffuse, baseColorFromSpecular, metallic * metallic);
baseColor = baseColor.clampToRef(0, 1, baseColor);
var metallicRoughness = {
baseColor: baseColor,
metallic: metallic,
roughness: 1 - specularGlossiness.glossiness
};
return metallicRoughness;
};
/**
* Calculates the surface reflectance, independent of lighting conditions
* @param color Color source to calculate brightness from
* @returns number representing the perceived brightness, or zero if color is undefined
*/
_GLTFMaterialExporter.prototype._getPerceivedBrightness = function (color) {
if (color) {
return Math.sqrt(0.299 * color.r * color.r + 0.587 * color.g * color.g + 0.114 * color.b * color.b);
}
return 0;
};
/**
* Returns the maximum color component value
* @param color
* @returns maximum color component value, or zero if color is null or undefined
*/
_GLTFMaterialExporter.prototype._getMaxComponent = function (color) {
if (color) {
return Math.max(color.r, Math.max(color.g, color.b));
}
return 0;
};
/**
* Convert a PBRMaterial (Metallic/Roughness) to Metallic Roughness factors
* @param babylonPBRMaterial BJS PBR Metallic Roughness Material
* @param mimeType mime type to use for the textures
* @param images array of glTF image interfaces
* @param textures array of glTF texture interfaces
* @param glTFPbrMetallicRoughness glTF PBR Metallic Roughness interface
* @param imageData map of image file name to data
* @param hasTextureCoords specifies if texture coordinates are present on the submesh to determine if textures should be applied
* @returns glTF PBR Metallic Roughness factors
*/
_GLTFMaterialExporter.prototype._convertMetalRoughFactorsToMetallicRoughnessAsync = function (babylonPBRMaterial, mimeType, glTFPbrMetallicRoughness, hasTextureCoords) {
var promises = [];
var metallicRoughness = {
baseColor: babylonPBRMaterial.albedoColor,
metallic: babylonPBRMaterial.metallic,
roughness: babylonPBRMaterial.roughness
};
if (hasTextureCoords) {
if (babylonPBRMaterial.albedoTexture) {
promises.push(this._exportTextureAsync(babylonPBRMaterial.albedoTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFPbrMetallicRoughness.baseColorTexture = glTFTexture;
}
}));
}
if (babylonPBRMaterial.metallicTexture) {
promises.push(this._exportTextureAsync(babylonPBRMaterial.metallicTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFPbrMetallicRoughness.metallicRoughnessTexture = glTFTexture;
}
}));
}
}
return Promise.all(promises).then(function () {
return metallicRoughness;
});
};
_GLTFMaterialExporter.prototype._getGLTFTextureSampler = function (texture) {
var sampler = this._getGLTFTextureWrapModesSampler(texture);
var samplingMode = texture instanceof BABYLON.Texture ? texture.samplingMode : null;
if (samplingMode != null) {
switch (samplingMode) {
case BABYLON.Texture.LINEAR_LINEAR: {
sampler.magFilter = 9729 /* LINEAR */;
sampler.minFilter = 9729 /* LINEAR */;
break;
}
case BABYLON.Texture.LINEAR_NEAREST: {
sampler.magFilter = 9729 /* LINEAR */;
sampler.minFilter = 9728 /* NEAREST */;
break;
}
case BABYLON.Texture.NEAREST_LINEAR: {
sampler.magFilter = 9728 /* NEAREST */;
sampler.minFilter = 9729 /* LINEAR */;
break;
}
case BABYLON.Texture.NEAREST_LINEAR_MIPLINEAR: {
sampler.magFilter = 9728 /* NEAREST */;
sampler.minFilter = 9987 /* LINEAR_MIPMAP_LINEAR */;
break;
}
case BABYLON.Texture.NEAREST_NEAREST: {
sampler.magFilter = 9728 /* NEAREST */;
sampler.minFilter = 9728 /* NEAREST */;
break;
}
case BABYLON.Texture.NEAREST_LINEAR_MIPNEAREST: {
sampler.magFilter = 9728 /* NEAREST */;
sampler.minFilter = 9985 /* LINEAR_MIPMAP_NEAREST */;
break;
}
case BABYLON.Texture.LINEAR_NEAREST_MIPNEAREST: {
sampler.magFilter = 9729 /* LINEAR */;
sampler.minFilter = 9984 /* NEAREST_MIPMAP_NEAREST */;
break;
}
case BABYLON.Texture.LINEAR_NEAREST_MIPLINEAR: {
sampler.magFilter = 9729 /* LINEAR */;
sampler.minFilter = 9986 /* NEAREST_MIPMAP_LINEAR */;
break;
}
case BABYLON.Texture.NEAREST_NEAREST_MIPLINEAR: {
sampler.magFilter = 9728 /* NEAREST */;
sampler.minFilter = 9986 /* NEAREST_MIPMAP_LINEAR */;
break;
}
case BABYLON.Texture.LINEAR_LINEAR_MIPLINEAR: {
sampler.magFilter = 9729 /* LINEAR */;
sampler.minFilter = 9987 /* LINEAR_MIPMAP_LINEAR */;
break;
}
case BABYLON.Texture.LINEAR_LINEAR_MIPNEAREST: {
sampler.magFilter = 9729 /* LINEAR */;
sampler.minFilter = 9985 /* LINEAR_MIPMAP_NEAREST */;
break;
}
case BABYLON.Texture.NEAREST_NEAREST_MIPNEAREST: {
sampler.magFilter = 9728 /* NEAREST */;
sampler.minFilter = 9984 /* NEAREST_MIPMAP_NEAREST */;
break;
}
}
}
return sampler;
};
_GLTFMaterialExporter.prototype._getGLTFTextureWrapMode = function (wrapMode) {
switch (wrapMode) {
case BABYLON.Texture.WRAP_ADDRESSMODE: {
return 10497 /* REPEAT */;
}
case BABYLON.Texture.CLAMP_ADDRESSMODE: {
return 33071 /* CLAMP_TO_EDGE */;
}
case BABYLON.Texture.MIRROR_ADDRESSMODE: {
return 33648 /* MIRRORED_REPEAT */;
}
default: {
BABYLON.Tools.Error("Unsupported Texture Wrap Mode " + wrapMode + "!");
return 10497 /* REPEAT */;
}
}
};
_GLTFMaterialExporter.prototype._getGLTFTextureWrapModesSampler = function (texture) {
var wrapS = this._getGLTFTextureWrapMode(texture instanceof BABYLON.Texture ? texture.wrapU : BABYLON.Texture.WRAP_ADDRESSMODE);
var wrapT = this._getGLTFTextureWrapMode(texture instanceof BABYLON.Texture ? texture.wrapV : BABYLON.Texture.WRAP_ADDRESSMODE);
if (wrapS === 10497 /* REPEAT */ && wrapT === 10497 /* REPEAT */) { // default wrapping mode in glTF, so omitting
return {};
}
return { wrapS: wrapS, wrapT: wrapT };
};
/**
* Convert a PBRMaterial (Specular/Glossiness) to Metallic Roughness factors
* @param babylonPBRMaterial BJS PBR Metallic Roughness Material
* @param mimeType mime type to use for the textures
* @param images array of glTF image interfaces
* @param textures array of glTF texture interfaces
* @param glTFPbrMetallicRoughness glTF PBR Metallic Roughness interface
* @param imageData map of image file name to data
* @param hasTextureCoords specifies if texture coordinates are present on the submesh to determine if textures should be applied
* @returns glTF PBR Metallic Roughness factors
*/
_GLTFMaterialExporter.prototype._convertSpecGlossFactorsToMetallicRoughnessAsync = function (babylonPBRMaterial, mimeType, glTFPbrMetallicRoughness, hasTextureCoords) {
var _this = this;
return Promise.resolve().then(function () {
var samplers = _this._exporter._samplers;
var textures = _this._exporter._textures;
var specGloss = {
diffuseColor: babylonPBRMaterial.albedoColor || BABYLON.Color3.White(),
specularColor: babylonPBRMaterial.reflectivityColor || BABYLON.Color3.White(),
glossiness: babylonPBRMaterial.microSurface || 1,
};
var samplerIndex = null;
var sampler = _this._getGLTFTextureSampler(babylonPBRMaterial.albedoTexture);
if (sampler.magFilter != null && sampler.minFilter != null && sampler.wrapS != null && sampler.wrapT != null) {
samplers.push(sampler);
samplerIndex = samplers.length - 1;
}
if (babylonPBRMaterial.reflectivityTexture && !babylonPBRMaterial.useMicroSurfaceFromReflectivityMapAlpha) {
return Promise.reject("_ConvertPBRMaterial: Glossiness values not included in the reflectivity texture are currently not supported");
}
if ((babylonPBRMaterial.albedoTexture || babylonPBRMaterial.reflectivityTexture) && hasTextureCoords) {
return _this._convertSpecularGlossinessTexturesToMetallicRoughnessAsync(babylonPBRMaterial.albedoTexture, babylonPBRMaterial.reflectivityTexture, specGloss, mimeType).then(function (metallicRoughnessFactors) {
if (metallicRoughnessFactors.baseColorTextureBase64) {
var glTFBaseColorTexture = _this._getTextureInfoFromBase64(metallicRoughnessFactors.baseColorTextureBase64, "bjsBaseColorTexture_" + (textures.length) + ".png", mimeType, babylonPBRMaterial.albedoTexture ? babylonPBRMaterial.albedoTexture.coordinatesIndex : null, samplerIndex);
if (glTFBaseColorTexture) {
glTFPbrMetallicRoughness.baseColorTexture = glTFBaseColorTexture;
}
}
if (metallicRoughnessFactors.metallicRoughnessTextureBase64) {
var glTFMRColorTexture = _this._getTextureInfoFromBase64(metallicRoughnessFactors.metallicRoughnessTextureBase64, "bjsMetallicRoughnessTexture_" + (textures.length) + ".png", mimeType, babylonPBRMaterial.reflectivityTexture ? babylonPBRMaterial.reflectivityTexture.coordinatesIndex : null, samplerIndex);
if (glTFMRColorTexture) {
glTFPbrMetallicRoughness.metallicRoughnessTexture = glTFMRColorTexture;
}
}
return metallicRoughnessFactors;
});
}
else {
return _this._convertSpecularGlossinessToMetallicRoughness(specGloss);
}
});
};
/**
* Converts a Babylon PBR Metallic Roughness Material to a glTF Material
* @param babylonPBRMaterial BJS PBR Metallic Roughness Material
* @param mimeType mime type to use for the textures
* @param images array of glTF image interfaces
* @param textures array of glTF texture interfaces
* @param materials array of glTF material interfaces
* @param imageData map of image file name to data
* @param hasTextureCoords specifies if texture coordinates are present on the submesh to determine if textures should be applied
*/
_GLTFMaterialExporter.prototype._convertPBRMaterialAsync = function (babylonPBRMaterial, mimeType, hasTextureCoords) {
var _this = this;
var glTFPbrMetallicRoughness = {};
var glTFMaterial = {
name: babylonPBRMaterial.name
};
var useMetallicRoughness = babylonPBRMaterial.isMetallicWorkflow();
if (useMetallicRoughness) {
if (babylonPBRMaterial.albedoColor) {
glTFPbrMetallicRoughness.baseColorFactor = [
babylonPBRMaterial.albedoColor.r,
babylonPBRMaterial.albedoColor.g,
babylonPBRMaterial.albedoColor.b,
babylonPBRMaterial.alpha
];
}
return this._convertMetalRoughFactorsToMetallicRoughnessAsync(babylonPBRMaterial, mimeType, glTFPbrMetallicRoughness, hasTextureCoords).then(function (metallicRoughness) {
return _this.setMetallicRoughnessPbrMaterial(metallicRoughness, babylonPBRMaterial, glTFMaterial, glTFPbrMetallicRoughness, mimeType, hasTextureCoords);
});
}
else {
return this._convertSpecGlossFactorsToMetallicRoughnessAsync(babylonPBRMaterial, mimeType, glTFPbrMetallicRoughness, hasTextureCoords).then(function (metallicRoughness) {
return _this.setMetallicRoughnessPbrMaterial(metallicRoughness, babylonPBRMaterial, glTFMaterial, glTFPbrMetallicRoughness, mimeType, hasTextureCoords);
});
}
};
_GLTFMaterialExporter.prototype.setMetallicRoughnessPbrMaterial = function (metallicRoughness, babylonPBRMaterial, glTFMaterial, glTFPbrMetallicRoughness, mimeType, hasTextureCoords) {
var materialMap = this._exporter._materialMap;
var materials = this._exporter._materials;
var promises = [];
if (metallicRoughness) {
var alphaMode = null;
if (babylonPBRMaterial.transparencyMode != null) {
alphaMode = this._getAlphaMode(babylonPBRMaterial);
if (alphaMode) {
if (alphaMode !== "OPAQUE" /* OPAQUE */) { //glTF defaults to opaque
glTFMaterial.alphaMode = alphaMode;
if (alphaMode === "MASK" /* MASK */) {
glTFMaterial.alphaCutoff = babylonPBRMaterial.alphaCutOff;
}
}
}
}
if (!(_GLTFMaterialExporter.FuzzyEquals(metallicRoughness.baseColor, BABYLON.Color3.White(), _GLTFMaterialExporter._Epsilon) && babylonPBRMaterial.alpha >= _GLTFMaterialExporter._Epsilon)) {
glTFPbrMetallicRoughness.baseColorFactor = [
metallicRoughness.baseColor.r,
metallicRoughness.baseColor.g,
metallicRoughness.baseColor.b,
babylonPBRMaterial.alpha
];
}
if (metallicRoughness.metallic != null && metallicRoughness.metallic !== 1) {
glTFPbrMetallicRoughness.metallicFactor = metallicRoughness.metallic;
}
if (metallicRoughness.roughness != null && metallicRoughness.roughness !== 1) {
glTFPbrMetallicRoughness.roughnessFactor = metallicRoughness.roughness;
}
if (babylonPBRMaterial.backFaceCulling != null && !babylonPBRMaterial.backFaceCulling) {
if (!babylonPBRMaterial.twoSidedLighting) {
BABYLON.Tools.Warn(babylonPBRMaterial.name + ": Back-face culling enabled and two-sided lighting disabled is not supported in glTF.");
}
glTFMaterial.doubleSided = true;
}
if (hasTextureCoords) {
if (babylonPBRMaterial.bumpTexture) {
var promise = this._exportTextureAsync(babylonPBRMaterial.bumpTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFMaterial.normalTexture = glTFTexture;
if (babylonPBRMaterial.bumpTexture.level !== 1) {
glTFMaterial.normalTexture.scale = babylonPBRMaterial.bumpTexture.level;
}
}
});
promises.push(promise);
}
if (babylonPBRMaterial.ambientTexture) {
var promise = this._exportTextureAsync(babylonPBRMaterial.ambientTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
var occlusionTexture = {
index: glTFTexture.index
};
glTFMaterial.occlusionTexture = occlusionTexture;
if (babylonPBRMaterial.ambientTextureStrength) {
occlusionTexture.strength = babylonPBRMaterial.ambientTextureStrength;
}
}
});
promises.push(promise);
}
if (babylonPBRMaterial.emissiveTexture) {
var promise = this._exportTextureAsync(babylonPBRMaterial.emissiveTexture, mimeType).then(function (glTFTexture) {
if (glTFTexture) {
glTFMaterial.emissiveTexture = glTFTexture;
}
});
promises.push(promise);
}
}
if (!_GLTFMaterialExporter.FuzzyEquals(babylonPBRMaterial.emissiveColor, BABYLON.Color3.Black(), _GLTFMaterialExporter._Epsilon)) {
glTFMaterial.emissiveFactor = babylonPBRMaterial.emissiveColor.asArray();
}
glTFMaterial.pbrMetallicRoughness = glTFPbrMetallicRoughness;
materials.push(glTFMaterial);
materialMap[babylonPBRMaterial.uniqueId] = materials.length - 1;
}
return Promise.all(promises).then(function (result) { });
};
_GLTFMaterialExporter.prototype.getPixelsFromTexture = function (babylonTexture) {
var pixels = babylonTexture.textureType === BABYLON.Engine.TEXTURETYPE_UNSIGNED_INT ? babylonTexture.readPixels() : babylonTexture.readPixels();
return pixels;
};
/**
* Extracts a texture from a Babylon texture into file data and glTF data
* @param babylonTexture Babylon texture to extract
* @param mimeType Mime Type of the babylonTexture
* @return glTF texture info, or null if the texture format is not supported
*/
_GLTFMaterialExporter.prototype._exportTextureAsync = function (babylonTexture, mimeType) {
var _this = this;
var extensionPromise = this._exporter._extensionsPreExportTextureAsync("exporter", babylonTexture, mimeType);
if (!extensionPromise) {
return this._exportTextureInfoAsync(babylonTexture, mimeType);
}
return extensionPromise.then(function (texture) {
if (!texture) {
return _this._exportTextureInfoAsync(babylonTexture, mimeType);
}
return _this._exportTextureInfoAsync(texture, mimeType);
});
};
_GLTFMaterialExporter.prototype._exportTextureInfoAsync = function (babylonTexture, mimeType) {
var _this = this;
return Promise.resolve().then(function () {
var textureUid = babylonTexture.uid;
if (textureUid in _this._textureMap) {
return _this._textureMap[textureUid];
}
else {
var samplers = _this._exporter._samplers;
var sampler = _this._getGLTFTextureSampler(babylonTexture);
var samplerIndex_1 = null;
// if a pre-existing sampler with identical parameters exists, then reuse the previous sampler
var foundSamplerIndex = null;
for (var i = 0; i < samplers.length; ++i) {
var s = samplers[i];
if (s.minFilter === sampler.minFilter && s.magFilter === sampler.magFilter &&
s.wrapS === sampler.wrapS && s.wrapT === sampler.wrapT) {
foundSamplerIndex = i;
break;
}
}
if (foundSamplerIndex == null) {
samplers.push(sampler);
samplerIndex_1 = samplers.length - 1;
}
else {
samplerIndex_1 = foundSamplerIndex;
}
var pixels = _this.getPixelsFromTexture(babylonTexture);
var size = babylonTexture.getSize();
return _this._createBase64FromCanvasAsync(pixels, size.width, size.height, mimeType).then(function (base64Data) {
var textureInfo = _this._getTextureInfoFromBase64(base64Data, babylonTexture.name.replace(/\.\/|\/|\.\\|\\/g, "_"), mimeType, babylonTexture.coordinatesIndex, samplerIndex_1);
if (textureInfo) {
_this._textureMap[textureUid] = textureInfo;
}
return textureInfo;
});
}
});
};
/**
* Builds a texture from base64 string
* @param base64Texture base64 texture string
* @param baseTextureName Name to use for the texture
* @param mimeType image mime type for the texture
* @param images array of images
* @param textures array of textures
* @param imageData map of image data
* @returns glTF texture info, or null if the texture format is not supported
*/
_GLTFMaterialExporter.prototype._getTextureInfoFromBase64 = function (base64Texture, baseTextureName, mimeType, texCoordIndex, samplerIndex) {
var textures = this._exporter._textures;
var images = this._exporter._images;
var imageData = this._exporter._imageData;
var textureInfo = null;
var glTFTexture = {
source: images.length,
name: baseTextureName
};
if (samplerIndex != null) {
glTFTexture.sampler = samplerIndex;
}
var binStr = atob(base64Texture.split(',')[1]);
var arrBuff = new ArrayBuffer(binStr.length);
var arr = new Uint8Array(arrBuff);
for (var i = 0, length_2 = binStr.length; i < length_2; ++i) {
arr[i] = binStr.charCodeAt(i);
}
var imageValues = { data: arr, mimeType: mimeType };
var extension = mimeType === "image/jpeg" /* JPEG */ ? '.jpeg' : '.png';
var textureName = baseTextureName + extension;
if (textureName in imageData) {
textureName = baseTextureName + "_" + BABYLON.Tools.RandomId() + extension;
}
imageData[textureName] = imageValues;
if (mimeType === "image/jpeg" /* JPEG */ || mimeType === "image/png" /* PNG */) {
var glTFImage = {
name: baseTextureName,
uri: textureName
};
var foundIndex = null;
for (var i = 0; i < images.length; ++i) {
if (images[i].uri === textureName) {
foundIndex = i;
break;
}
}
if (foundIndex == null) {
images.push(glTFImage);
glTFTexture.source = images.length - 1;
}
else {
glTFTexture.source = foundIndex;
}
textures.push(glTFTexture);
textureInfo = {
index: textures.length - 1
};
if (texCoordIndex != null) {
textureInfo.texCoord = texCoordIndex;
}
}
else {
BABYLON.Tools.Error("Unsupported texture mime type " + mimeType);
}
return textureInfo;
};
/**
* Represents the dielectric specular values for R, G and B
*/
_GLTFMaterialExporter._DielectricSpecular = new BABYLON.Color3(0.04, 0.04, 0.04);
/**
* Allows the maximum specular power to be defined for material calculations
*/
_GLTFMaterialExporter._MaxSpecularPower = 1024;
/**
* Numeric tolerance value
*/
_GLTFMaterialExporter._Epsilon = 1e-6;
return _GLTFMaterialExporter;
}());
Exporter._GLTFMaterialExporter = _GLTFMaterialExporter;
})(Exporter = GLTF2.Exporter || (GLTF2.Exporter = {}));
})(GLTF2 = BABYLON.GLTF2 || (BABYLON.GLTF2 = {}));
})(BABYLON || (BABYLON = {}));
//# sourceMappingURL=babylon.glTFMaterialExporter.js.map
///
var BABYLON;
(function (BABYLON) {
var GLTF2;
(function (GLTF2) {
var Exporter;
(function (Exporter) {
/**
* @hidden
* Enum for handling in tangent and out tangent.
*/
var _TangentType;
(function (_TangentType) {
/**
* Specifies that input tangents are used.
*/
_TangentType[_TangentType["INTANGENT"] = 0] = "INTANGENT";
/**
* Specifies that output tangents are used.
*/
_TangentType[_TangentType["OUTTANGENT"] = 1] = "OUTTANGENT";
})(_TangentType || (_TangentType = {}));
/**
* @hidden
* Utility class for generating glTF animation data from BabylonJS.
*/
var _GLTFAnimation = /** @class */ (function () {
function _GLTFAnimation() {
}
/**
* @ignore
*
* Creates glTF channel animation from BabylonJS animation.
* @param babylonTransformNode - BabylonJS mesh.
* @param animation - animation.
* @param animationChannelTargetPath - The target animation channel.
* @param convertToRightHandedSystem - Specifies if the values should be converted to right-handed.
* @param useQuaternion - Specifies if quaternions are used.
* @returns nullable IAnimationData
*/
_GLTFAnimation._CreateNodeAnimation = function (babylonTransformNode, animation, animationChannelTargetPath, convertToRightHandedSystem, useQuaternion, animationSampleRate) {
var inputs = [];
var outputs = [];
var keyFrames = animation.getKeys();
var minMaxKeyFrames = _GLTFAnimation.calculateMinMaxKeyFrames(keyFrames);
var interpolationOrBake = _GLTFAnimation._DeduceInterpolation(keyFrames, animationChannelTargetPath, useQuaternion);
var frameDelta = minMaxKeyFrames.max - minMaxKeyFrames.min;
var interpolation = interpolationOrBake.interpolationType;
var shouldBakeAnimation = interpolationOrBake.shouldBakeAnimation;
if (shouldBakeAnimation) {
_GLTFAnimation._CreateBakedAnimation(babylonTransformNode, animation, animationChannelTargetPath, minMaxKeyFrames.min, minMaxKeyFrames.max, animation.framePerSecond, animationSampleRate, inputs, outputs, minMaxKeyFrames, convertToRightHandedSystem, useQuaternion);
}
else {
if (interpolation === "LINEAR" /* LINEAR */ || interpolation === "STEP" /* STEP */) {
_GLTFAnimation._CreateLinearOrStepAnimation(babylonTransformNode, animation, animationChannelTargetPath, frameDelta, inputs, outputs, convertToRightHandedSystem, useQuaternion);
}
else if (interpolation === "CUBICSPLINE" /* CUBICSPLINE */) {
_GLTFAnimation._CreateCubicSplineAnimation(babylonTransformNode, animation, animationChannelTargetPath, frameDelta, inputs, outputs, convertToRightHandedSystem, useQuaternion);
}
else {
_GLTFAnimation._CreateBakedAnimation(babylonTransformNode, animation, animationChannelTargetPath, minMaxKeyFrames.min, minMaxKeyFrames.max, animation.framePerSecond, animationSampleRate, inputs, outputs, minMaxKeyFrames, convertToRightHandedSystem, useQuaternion);
}
}
if (inputs.length && outputs.length) {
var result = {
inputs: inputs,
outputs: outputs,
samplerInterpolation: interpolation,
inputsMin: shouldBakeAnimation ? minMaxKeyFrames.min : BABYLON.Tools.FloatRound(minMaxKeyFrames.min / animation.framePerSecond),
inputsMax: shouldBakeAnimation ? minMaxKeyFrames.max : BABYLON.Tools.FloatRound(minMaxKeyFrames.max / animation.framePerSecond)
};
return result;
}
return null;
};
_GLTFAnimation._DeduceAnimationInfo = function (animation) {
var animationChannelTargetPath = null;
var dataAccessorType = "VEC3" /* VEC3 */;
var useQuaternion = false;
var property = animation.targetProperty.split('.');
switch (property[0]) {
case 'scaling': {
animationChannelTargetPath = "scale" /* SCALE */;
break;
}
case 'position': {
animationChannelTargetPath = "translation" /* TRANSLATION */;
break;
}
case 'rotation': {
dataAccessorType = "VEC4" /* VEC4 */;
animationChannelTargetPath = "rotation" /* ROTATION */;
break;
}
case 'rotationQuaternion': {
dataAccessorType = "VEC4" /* VEC4 */;
useQuaternion = true;
animationChannelTargetPath = "rotation" /* ROTATION */;
break;
}
default: {
BABYLON.Tools.Error("Unsupported animatable property " + property[0]);
}
}
if (animationChannelTargetPath) {
return { animationChannelTargetPath: animationChannelTargetPath, dataAccessorType: dataAccessorType, useQuaternion: useQuaternion };
}
else {
BABYLON.Tools.Error('animation channel target path and data accessor type could be deduced');
}
return null;
};
/**
* @ignore
* Create node animations from the transform node animations
* @param babylonTransformNode
* @param runtimeGLTFAnimation
* @param idleGLTFAnimations
* @param nodeMap
* @param nodes
* @param binaryWriter
* @param bufferViews
* @param accessors
* @param convertToRightHandedSystem
*/
_GLTFAnimation._CreateNodeAnimationFromTransformNodeAnimations = function (babylonTransformNode, runtimeGLTFAnimation, idleGLTFAnimations, nodeMap, nodes, binaryWriter, bufferViews, accessors, convertToRightHandedSystem, animationSampleRate) {
var glTFAnimation;
if (babylonTransformNode.animations) {
for (var _i = 0, _a = babylonTransformNode.animations; _i < _a.length; _i++) {
var animation = _a[_i];
var animationInfo = _GLTFAnimation._DeduceAnimationInfo(animation);
if (animationInfo) {
glTFAnimation = {
name: animation.name,
samplers: [],
channels: []
};
_GLTFAnimation.AddAnimation("" + animation.name, animation.hasRunningRuntimeAnimations ? runtimeGLTFAnimation : glTFAnimation, babylonTransformNode, animation, animationInfo.dataAccessorType, animationInfo.animationChannelTargetPath, nodeMap, binaryWriter, bufferViews, accessors, convertToRightHandedSystem, animationInfo.useQuaternion, animationSampleRate);
if (glTFAnimation.samplers.length && glTFAnimation.channels.length) {
idleGLTFAnimations.push(glTFAnimation);
}
}
}
}
};
/**
* @ignore
* Create node animations from the animation groups
* @param babylonScene
* @param glTFAnimations
* @param nodeMap
* @param nodes
* @param binaryWriter
* @param bufferViews
* @param accessors
* @param convertToRightHandedSystem
*/
_GLTFAnimation._CreateNodeAnimationFromAnimationGroups = function (babylonScene, glTFAnimations, nodeMap, nodes, binaryWriter, bufferViews, accessors, convertToRightHandedSystem, animationSampleRate) {
var glTFAnimation;
if (babylonScene.animationGroups) {
var animationGroups = babylonScene.animationGroups;
for (var _i = 0, animationGroups_1 = animationGroups; _i < animationGroups_1.length; _i++) {
var animationGroup = animationGroups_1[_i];
glTFAnimation = {
name: animationGroup.name,
channels: [],
samplers: []
};
for (var _a = 0, _b = animationGroup.targetedAnimations; _a < _b.length; _a++) {
var targetAnimation = _b[_a];
var target = targetAnimation.target;
var animation = targetAnimation.animation;
if (target instanceof BABYLON.Mesh || target.length === 1 && target[0] instanceof BABYLON.Mesh) { // TODO: Update to support bones
var animationInfo = _GLTFAnimation._DeduceAnimationInfo(targetAnimation.animation);
if (animationInfo) {
var babylonMesh = target instanceof BABYLON.Mesh ? target : target[0];
_GLTFAnimation.AddAnimation("" + animation.name, glTFAnimation, babylonMesh, animation, animationInfo.dataAccessorType, animationInfo.animationChannelTargetPath, nodeMap, binaryWriter, bufferViews, accessors, convertToRightHandedSystem, animationInfo.useQuaternion, animationSampleRate);
}
}
}
if (glTFAnimation.channels.length && glTFAnimation.samplers.length) {
glTFAnimations.push(glTFAnimation);
}
}
}
};
_GLTFAnimation.AddAnimation = function (name, glTFAnimation, babylonTransformNode, animation, dataAccessorType, animationChannelTargetPath, nodeMap, binaryWriter, bufferViews, accessors, convertToRightHandedSystem, useQuaternion, animationSampleRate) {
var animationData = _GLTFAnimation._CreateNodeAnimation(babylonTransformNode, animation, animationChannelTargetPath, convertToRightHandedSystem, useQuaternion, animationSampleRate);
var bufferView;
var accessor;
var keyframeAccessorIndex;
var dataAccessorIndex;
var outputLength;
var animationSampler;
var animationChannel;
if (animationData) {
var nodeIndex = nodeMap[babylonTransformNode.uniqueId];
// Creates buffer view and accessor for key frames.
var byteLength = animationData.inputs.length * 4;
bufferView = Exporter._GLTFUtilities._CreateBufferView(0, binaryWriter.getByteOffset(), byteLength, undefined, name + " keyframe data view");
bufferViews.push(bufferView);
animationData.inputs.forEach(function (input) {
binaryWriter.setFloat32(input);
});
accessor = Exporter._GLTFUtilities._CreateAccessor(bufferViews.length - 1, name + " keyframes", "SCALAR" /* SCALAR */, 5126 /* FLOAT */, animationData.inputs.length, null, [animationData.inputsMin], [animationData.inputsMax]);
accessors.push(accessor);
keyframeAccessorIndex = accessors.length - 1;
// create bufferview and accessor for keyed values.
outputLength = animationData.outputs.length;
byteLength = dataAccessorType === "VEC3" /* VEC3 */ ? animationData.outputs.length * 12 : animationData.outputs.length * 16;
// check for in and out tangents
bufferView = Exporter._GLTFUtilities._CreateBufferView(0, binaryWriter.getByteOffset(), byteLength, undefined, name + " data view");
bufferViews.push(bufferView);
animationData.outputs.forEach(function (output) {
output.forEach(function (entry) {
binaryWriter.setFloat32(entry);
});
});
accessor = Exporter._GLTFUtilities._CreateAccessor(bufferViews.length - 1, name + " data", dataAccessorType, 5126 /* FLOAT */, outputLength, null, null, null);
accessors.push(accessor);
dataAccessorIndex = accessors.length - 1;
// create sampler
animationSampler = {
interpolation: animationData.samplerInterpolation,
input: keyframeAccessorIndex,
output: dataAccessorIndex
};
glTFAnimation.samplers.push(animationSampler);
// create channel
animationChannel = {
sampler: glTFAnimation.samplers.length - 1,
target: {
node: nodeIndex,
path: animationChannelTargetPath
}
};
glTFAnimation.channels.push(animationChannel);
}
};
/**
* Create a baked animation
* @param babylonTransformNode BabylonJS mesh
* @param animation BabylonJS animation corresponding to the BabylonJS mesh
* @param animationChannelTargetPath animation target channel
* @param minFrame minimum animation frame
* @param maxFrame maximum animation frame
* @param fps frames per second of the animation
* @param inputs input key frames of the animation
* @param outputs output key frame data of the animation
* @param convertToRightHandedSystem converts the values to right-handed
* @param useQuaternion specifies if quaternions should be used
*/
_GLTFAnimation._CreateBakedAnimation = function (babylonTransformNode, animation, animationChannelTargetPath, minFrame, maxFrame, fps, sampleRate, inputs, outputs, minMaxFrames, convertToRightHandedSystem, useQuaternion) {
var value;
var quaternionCache = BABYLON.Quaternion.Identity();
var previousTime = null;
var time;
var maxUsedFrame = null;
var currKeyFrame = null;
var nextKeyFrame = null;
var prevKeyFrame = null;
var endFrame = null;
minMaxFrames.min = BABYLON.Tools.FloatRound(minFrame / fps);
var keyFrames = animation.getKeys();
for (var i = 0, length_1 = keyFrames.length; i < length_1; ++i) {
endFrame = null;
currKeyFrame = keyFrames[i];
if (i + 1 < length_1) {
nextKeyFrame = keyFrames[i + 1];
if (currKeyFrame.value.equals(nextKeyFrame.value)) {
if (i === 0) { // set the first frame to itself
endFrame = currKeyFrame.frame;
}
else {
continue;
}
}
else {
endFrame = nextKeyFrame.frame;
}
}
else {
// at the last key frame
prevKeyFrame = keyFrames[i - 1];
if (currKeyFrame.value.equals(prevKeyFrame.value)) {
continue;
}
else {
endFrame = maxFrame;
}
}
if (endFrame) {
for (var f = currKeyFrame.frame; f <= endFrame; f += sampleRate) {
time = BABYLON.Tools.FloatRound(f / fps);
if (time === previousTime) {
continue;
}
previousTime = time;
maxUsedFrame = time;
value = animation._interpolate(f, 0, undefined, animation.loopMode);
_GLTFAnimation._SetInterpolatedValue(babylonTransformNode, value, time, animation, animationChannelTargetPath, quaternionCache, inputs, outputs, convertToRightHandedSystem, useQuaternion);
}
}
}
if (maxUsedFrame) {
minMaxFrames.max = maxUsedFrame;
}
};
_GLTFAnimation._ConvertFactorToVector3OrQuaternion = function (factor, babylonTransformNode, animation, animationType, animationChannelTargetPath, convertToRightHandedSystem, useQuaternion) {
var property;
var componentName;
var value = null;
var basePositionRotationOrScale = _GLTFAnimation._GetBasePositionRotationOrScale(babylonTransformNode, animationChannelTargetPath, convertToRightHandedSystem, useQuaternion);
if (animationType === BABYLON.Animation.ANIMATIONTYPE_FLOAT) { // handles single component x, y, z or w component animation by using a base property and animating over a component.
property = animation.targetProperty.split('.');
componentName = property ? property[1] : ''; // x, y, or z component
value = useQuaternion ? BABYLON.Quaternion.FromArray(basePositionRotationOrScale).normalize() : BABYLON.Vector3.FromArray(basePositionRotationOrScale);
switch (componentName) {
case 'x': {
value[componentName] = (convertToRightHandedSystem && useQuaternion && (animationChannelTargetPath !== "scale" /* SCALE */)) ? -factor : factor;
break;
}
case 'y': {
value[componentName] = (convertToRightHandedSystem && useQuaternion && (animationChannelTargetPath !== "scale" /* SCALE */)) ? -factor : factor;
break;
}
case 'z': {
value[componentName] = (convertToRightHandedSystem && !useQuaternion && (animationChannelTargetPath !== "scale" /* SCALE */)) ? -factor : factor;
break;
}
case 'w': {
value.w = factor;
break;
}
default: {
BABYLON.Tools.Error("glTFAnimation: Unsupported component type \"" + componentName + "\" for scale animation!");
}
}
}
return value;
};
_GLTFAnimation._SetInterpolatedValue = function (babylonTransformNode, value, time, animation, animationChannelTargetPath, quaternionCache, inputs, outputs, convertToRightHandedSystem, useQuaternion) {
var animationType = animation.dataType;
var cacheValue;
inputs.push(time);
if (typeof value === "number") {
value = this._ConvertFactorToVector3OrQuaternion(value, babylonTransformNode, animation, animationType, animationChannelTargetPath, convertToRightHandedSystem, useQuaternion);
}
if (value) {
if (animationChannelTargetPath === "rotation" /* ROTATION */) {
if (useQuaternion) {
quaternionCache = value;
}
else {
cacheValue = value;
BABYLON.Quaternion.RotationYawPitchRollToRef(cacheValue.y, cacheValue.x, cacheValue.z, quaternionCache);
}
if (convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedQuaternionFromRef(quaternionCache);
if (!babylonTransformNode.parent) {
quaternionCache = BABYLON.Quaternion.FromArray([0, 1, 0, 0]).multiply(quaternionCache);
}
}
outputs.push(quaternionCache.asArray());
}
else {
cacheValue = value;
if (convertToRightHandedSystem && (animationChannelTargetPath !== "scale" /* SCALE */)) {
Exporter._GLTFUtilities._GetRightHandedPositionVector3FromRef(cacheValue);
if (!babylonTransformNode.parent) {
cacheValue.x *= -1;
cacheValue.z *= -1;
}
}
outputs.push(cacheValue.asArray());
}
}
};
/**
* Creates linear animation from the animation key frames
* @param babylonTransformNode BabylonJS mesh
* @param animation BabylonJS animation
* @param animationChannelTargetPath The target animation channel
* @param frameDelta The difference between the last and first frame of the animation
* @param inputs Array to store the key frame times
* @param outputs Array to store the key frame data
* @param convertToRightHandedSystem Specifies if the position data should be converted to right handed
* @param useQuaternion Specifies if quaternions are used in the animation
*/
_GLTFAnimation._CreateLinearOrStepAnimation = function (babylonTransformNode, animation, animationChannelTargetPath, frameDelta, inputs, outputs, convertToRightHandedSystem, useQuaternion) {
for (var _i = 0, _a = animation.getKeys(); _i < _a.length; _i++) {
var keyFrame = _a[_i];
inputs.push(keyFrame.frame / animation.framePerSecond); // keyframes in seconds.
_GLTFAnimation._AddKeyframeValue(keyFrame, animation, outputs, animationChannelTargetPath, babylonTransformNode, convertToRightHandedSystem, useQuaternion);
}
};
/**
* Creates cubic spline animation from the animation key frames
* @param babylonTransformNode BabylonJS mesh
* @param animation BabylonJS animation
* @param animationChannelTargetPath The target animation channel
* @param frameDelta The difference between the last and first frame of the animation
* @param inputs Array to store the key frame times
* @param outputs Array to store the key frame data
* @param convertToRightHandedSystem Specifies if the position data should be converted to right handed
* @param useQuaternion Specifies if quaternions are used in the animation
*/
_GLTFAnimation._CreateCubicSplineAnimation = function (babylonTransformNode, animation, animationChannelTargetPath, frameDelta, inputs, outputs, convertToRightHandedSystem, useQuaternion) {
animation.getKeys().forEach(function (keyFrame) {
inputs.push(keyFrame.frame / animation.framePerSecond); // keyframes in seconds.
_GLTFAnimation.AddSplineTangent(babylonTransformNode, _TangentType.INTANGENT, outputs, animationChannelTargetPath, "CUBICSPLINE" /* CUBICSPLINE */, keyFrame, frameDelta, useQuaternion, convertToRightHandedSystem);
_GLTFAnimation._AddKeyframeValue(keyFrame, animation, outputs, animationChannelTargetPath, babylonTransformNode, convertToRightHandedSystem, useQuaternion);
_GLTFAnimation.AddSplineTangent(babylonTransformNode, _TangentType.OUTTANGENT, outputs, animationChannelTargetPath, "CUBICSPLINE" /* CUBICSPLINE */, keyFrame, frameDelta, useQuaternion, convertToRightHandedSystem);
});
};
_GLTFAnimation._GetBasePositionRotationOrScale = function (babylonTransformNode, animationChannelTargetPath, convertToRightHandedSystem, useQuaternion) {
var basePositionRotationOrScale;
if (animationChannelTargetPath === "rotation" /* ROTATION */) {
if (useQuaternion) {
if (babylonTransformNode.rotationQuaternion) {
basePositionRotationOrScale = babylonTransformNode.rotationQuaternion.asArray();
if (convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedQuaternionArrayFromRef(basePositionRotationOrScale);
if (!babylonTransformNode.parent) {
basePositionRotationOrScale = BABYLON.Quaternion.FromArray([0, 1, 0, 0]).multiply(BABYLON.Quaternion.FromArray(basePositionRotationOrScale)).asArray();
}
}
}
else {
basePositionRotationOrScale = BABYLON.Quaternion.Identity().asArray();
}
}
else {
basePositionRotationOrScale = babylonTransformNode.rotation.asArray();
Exporter._GLTFUtilities._GetRightHandedNormalArray3FromRef(basePositionRotationOrScale);
}
}
else if (animationChannelTargetPath === "translation" /* TRANSLATION */) {
basePositionRotationOrScale = babylonTransformNode.position.asArray();
if (convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedPositionArray3FromRef(basePositionRotationOrScale);
}
}
else { // scale
basePositionRotationOrScale = babylonTransformNode.scaling.asArray();
}
return basePositionRotationOrScale;
};
/**
* Adds a key frame value
* @param keyFrame
* @param animation
* @param outputs
* @param animationChannelTargetPath
* @param basePositionRotationOrScale
* @param convertToRightHandedSystem
* @param useQuaternion
*/
_GLTFAnimation._AddKeyframeValue = function (keyFrame, animation, outputs, animationChannelTargetPath, babylonTransformNode, convertToRightHandedSystem, useQuaternion) {
var value;
var newPositionRotationOrScale;
var animationType = animation.dataType;
if (animationType === BABYLON.Animation.ANIMATIONTYPE_VECTOR3) {
value = keyFrame.value.asArray();
if (animationChannelTargetPath === "rotation" /* ROTATION */) {
var array = BABYLON.Vector3.FromArray(value);
var rotationQuaternion = BABYLON.Quaternion.RotationYawPitchRoll(array.y, array.x, array.z);
if (convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedQuaternionFromRef(rotationQuaternion);
if (!babylonTransformNode.parent) {
rotationQuaternion = BABYLON.Quaternion.FromArray([0, 1, 0, 0]).multiply(rotationQuaternion);
}
}
value = rotationQuaternion.asArray();
}
else if (animationChannelTargetPath === "translation" /* TRANSLATION */) {
if (convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedNormalArray3FromRef(value);
if (!babylonTransformNode.parent) {
value[0] *= -1;
value[2] *= -1;
}
}
}
outputs.push(value); // scale vector.
}
else if (animationType === BABYLON.Animation.ANIMATIONTYPE_FLOAT) { // handles single component x, y, z or w component animation by using a base property and animating over a component.
newPositionRotationOrScale = this._ConvertFactorToVector3OrQuaternion(keyFrame.value, babylonTransformNode, animation, animationType, animationChannelTargetPath, convertToRightHandedSystem, useQuaternion);
if (newPositionRotationOrScale) {
if (animationChannelTargetPath === "rotation" /* ROTATION */) {
var posRotScale = useQuaternion ? newPositionRotationOrScale : BABYLON.Quaternion.RotationYawPitchRoll(newPositionRotationOrScale.y, newPositionRotationOrScale.x, newPositionRotationOrScale.z).normalize();
if (convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedQuaternionFromRef(posRotScale);
if (!babylonTransformNode.parent) {
posRotScale = BABYLON.Quaternion.FromArray([0, 1, 0, 0]).multiply(posRotScale);
}
}
outputs.push(posRotScale.asArray());
}
else if (animationChannelTargetPath === "translation" /* TRANSLATION */) {
if (convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedNormalVector3FromRef(newPositionRotationOrScale);
if (!babylonTransformNode.parent) {
newPositionRotationOrScale.x *= -1;
newPositionRotationOrScale.z *= -1;
}
}
}
outputs.push(newPositionRotationOrScale.asArray());
}
}
else if (animationType === BABYLON.Animation.ANIMATIONTYPE_QUATERNION) {
value = keyFrame.value.normalize().asArray();
if (convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedQuaternionArrayFromRef(value);
if (!babylonTransformNode.parent) {
value = BABYLON.Quaternion.FromArray([0, 1, 0, 0]).multiply(BABYLON.Quaternion.FromArray(value)).asArray();
}
}
outputs.push(value);
}
else {
BABYLON.Tools.Error('glTFAnimation: Unsupported key frame values for animation!');
}
};
/**
* Determine the interpolation based on the key frames
* @param keyFrames
* @param animationChannelTargetPath
* @param useQuaternion
*/
_GLTFAnimation._DeduceInterpolation = function (keyFrames, animationChannelTargetPath, useQuaternion) {
var interpolationType;
var shouldBakeAnimation = false;
var key;
if (animationChannelTargetPath === "rotation" /* ROTATION */ && !useQuaternion) {
return { interpolationType: "LINEAR" /* LINEAR */, shouldBakeAnimation: true };
}
for (var i = 0, length_2 = keyFrames.length; i < length_2; ++i) {
key = keyFrames[i];
if (key.inTangent || key.outTangent) {
if (interpolationType) {
if (interpolationType !== "CUBICSPLINE" /* CUBICSPLINE */) {
interpolationType = "LINEAR" /* LINEAR */;
shouldBakeAnimation = true;
break;
}
}
else {
interpolationType = "CUBICSPLINE" /* CUBICSPLINE */;
}
}
else {
if (interpolationType) {
if (interpolationType === "CUBICSPLINE" /* CUBICSPLINE */ ||
(key.interpolation && (key.interpolation === BABYLON.AnimationKeyInterpolation.STEP) && interpolationType !== "STEP" /* STEP */)) {
interpolationType = "LINEAR" /* LINEAR */;
shouldBakeAnimation = true;
break;
}
}
else {
if (key.interpolation && (key.interpolation === BABYLON.AnimationKeyInterpolation.STEP)) {
interpolationType = "STEP" /* STEP */;
}
else {
interpolationType = "LINEAR" /* LINEAR */;
}
}
}
}
if (!interpolationType) {
interpolationType = "LINEAR" /* LINEAR */;
}
return { interpolationType: interpolationType, shouldBakeAnimation: shouldBakeAnimation };
};
/**
* Adds an input tangent or output tangent to the output data
* If an input tangent or output tangent is missing, it uses the zero vector or zero quaternion
* @param tangentType Specifies which type of tangent to handle (inTangent or outTangent)
* @param outputs The animation data by keyframe
* @param animationChannelTargetPath The target animation channel
* @param interpolation The interpolation type
* @param keyFrame The key frame with the animation data
* @param frameDelta Time difference between two frames used to scale the tangent by the frame delta
* @param useQuaternion Specifies if quaternions are used
* @param convertToRightHandedSystem Specifies if the values should be converted to right-handed
*/
_GLTFAnimation.AddSplineTangent = function (babylonTransformNode, tangentType, outputs, animationChannelTargetPath, interpolation, keyFrame, frameDelta, useQuaternion, convertToRightHandedSystem) {
var tangent;
var tangentValue = tangentType === _TangentType.INTANGENT ? keyFrame.inTangent : keyFrame.outTangent;
if (interpolation === "CUBICSPLINE" /* CUBICSPLINE */) {
if (animationChannelTargetPath === "rotation" /* ROTATION */) {
if (tangentValue) {
if (useQuaternion) {
tangent = tangentValue.scale(frameDelta).asArray();
}
else {
var array = tangentValue.scale(frameDelta);
tangent = BABYLON.Quaternion.RotationYawPitchRoll(array.y, array.x, array.z).asArray();
}
if (convertToRightHandedSystem) {
Exporter._GLTFUtilities._GetRightHandedQuaternionArrayFromRef(tangent);
if (!babylonTransformNode.parent) {
tangent = BABYLON.Quaternion.FromArray([0, 1, 0, 0]).multiply(BABYLON.Quaternion.FromArray(tangent)).asArray();
}
}
}
else {
tangent = [0, 0, 0, 0];
}
}
else {
if (tangentValue) {
tangent = tangentValue.scale(frameDelta).asArray();
if (convertToRightHandedSystem) {
if (animationChannelTargetPath === "translation" /* TRANSLATION */) {
Exporter._GLTFUtilities._GetRightHandedPositionArray3FromRef(tangent);
if (!babylonTransformNode.parent) {
tangent[0] *= -1; // x
tangent[2] *= -1; // z
}
}
}
}
else {
tangent = [0, 0, 0];
}
}
outputs.push(tangent);
}
};
/**
* Get the minimum and maximum key frames' frame values
* @param keyFrames animation key frames
* @returns the minimum and maximum key frame value
*/
_GLTFAnimation.calculateMinMaxKeyFrames = function (keyFrames) {
var min = Infinity;
var max = -Infinity;
keyFrames.forEach(function (keyFrame) {
min = Math.min(min, keyFrame.frame);
max = Math.max(max, keyFrame.frame);
});
return { min: min, max: max };
};
return _GLTFAnimation;
}());
Exporter._GLTFAnimation = _GLTFAnimation;
})(Exporter = GLTF2.Exporter || (GLTF2.Exporter = {}));
})(GLTF2 = BABYLON.GLTF2 || (BABYLON.GLTF2 = {}));
})(BABYLON || (BABYLON = {}));
//# sourceMappingURL=babylon.glTFAnimation.js.map
///
var BABYLON;
(function (BABYLON) {
var GLTF2;
(function (GLTF2) {
var Exporter;
(function (Exporter) {
/**
* @hidden
*/
var _GLTFUtilities = /** @class */ (function () {
function _GLTFUtilities() {
}
/**
* Creates a buffer view based on the supplied arguments
* @param bufferIndex index value of the specified buffer
* @param byteOffset byte offset value
* @param byteLength byte length of the bufferView
* @param byteStride byte distance between conequential elements
* @param name name of the buffer view
* @returns bufferView for glTF
*/
_GLTFUtilities._CreateBufferView = function (bufferIndex, byteOffset, byteLength, byteStride, name) {
var bufferview = { buffer: bufferIndex, byteLength: byteLength };
if (byteOffset) {
bufferview.byteOffset = byteOffset;
}
if (name) {
bufferview.name = name;
}
if (byteStride) {
bufferview.byteStride = byteStride;
}
return bufferview;
};
/**
* Creates an accessor based on the supplied arguments
* @param bufferviewIndex The index of the bufferview referenced by this accessor
* @param name The name of the accessor
* @param type The type of the accessor
* @param componentType The datatype of components in the attribute
* @param count The number of attributes referenced by this accessor
* @param byteOffset The offset relative to the start of the bufferView in bytes
* @param min Minimum value of each component in this attribute
* @param max Maximum value of each component in this attribute
* @returns accessor for glTF
*/
_GLTFUtilities._CreateAccessor = function (bufferviewIndex, name, type, componentType, count, byteOffset, min, max) {
var accessor = { name: name, bufferView: bufferviewIndex, componentType: componentType, count: count, type: type };
if (min != null) {
accessor.min = min;
}
if (max != null) {
accessor.max = max;
}
if (byteOffset != null) {
accessor.byteOffset = byteOffset;
}
return accessor;
};
/**
* Calculates the minimum and maximum values of an array of position floats
* @param positions Positions array of a mesh
* @param vertexStart Starting vertex offset to calculate min and max values
* @param vertexCount Number of vertices to check for min and max values
* @returns min number array and max number array
*/
_GLTFUtilities._CalculateMinMaxPositions = function (positions, vertexStart, vertexCount, convertToRightHandedSystem) {
var min = [Infinity, Infinity, Infinity];
var max = [-Infinity, -Infinity, -Infinity];
var positionStrideSize = 3;
var indexOffset;
var position;
var vector;
if (vertexCount) {
for (var i = vertexStart, length_1 = vertexStart + vertexCount; i < length_1; ++i) {
indexOffset = positionStrideSize * i;
position = BABYLON.Vector3.FromArray(positions, indexOffset);
if (convertToRightHandedSystem) {
_GLTFUtilities._GetRightHandedPositionVector3FromRef(position);
}
vector = position.asArray();
for (var j = 0; j < positionStrideSize; ++j) {
var num = vector[j];
if (num < min[j]) {
min[j] = num;
}
if (num > max[j]) {
max[j] = num;
}
++indexOffset;
}
}
}
return { min: min, max: max };
};
/**
* Converts a new right-handed Vector3
* @param vector vector3 array
* @returns right-handed Vector3
*/
_GLTFUtilities._GetRightHandedPositionVector3 = function (vector) {
return new BABYLON.Vector3(vector.x, vector.y, -vector.z);
};
/**
* Converts a Vector3 to right-handed
* @param vector Vector3 to convert to right-handed
*/
_GLTFUtilities._GetRightHandedPositionVector3FromRef = function (vector) {
vector.z *= -1;
};
/**
* Converts a three element number array to right-handed
* @param vector number array to convert to right-handed
*/
_GLTFUtilities._GetRightHandedPositionArray3FromRef = function (vector) {
vector[2] *= -1;
};
/**
* Converts a new right-handed Vector3
* @param vector vector3 array
* @returns right-handed Vector3
*/
_GLTFUtilities._GetRightHandedNormalVector3 = function (vector) {
return new BABYLON.Vector3(vector.x, vector.y, -vector.z);
};
/**
* Converts a Vector3 to right-handed
* @param vector Vector3 to convert to right-handed
*/
_GLTFUtilities._GetRightHandedNormalVector3FromRef = function (vector) {
vector.z *= -1;
};
/**
* Converts a three element number array to right-handed
* @param vector number array to convert to right-handed
*/
_GLTFUtilities._GetRightHandedNormalArray3FromRef = function (vector) {
vector[2] *= -1;
};
/**
* Converts a Vector4 to right-handed
* @param vector Vector4 to convert to right-handed
*/
_GLTFUtilities._GetRightHandedVector4FromRef = function (vector) {
vector.z *= -1;
vector.w *= -1;
};
/**
* Converts a Vector4 to right-handed
* @param vector Vector4 to convert to right-handed
*/
_GLTFUtilities._GetRightHandedArray4FromRef = function (vector) {
vector[2] *= -1;
vector[3] *= -1;
};
/**
* Converts a Quaternion to right-handed
* @param quaternion Source quaternion to convert to right-handed
*/
_GLTFUtilities._GetRightHandedQuaternionFromRef = function (quaternion) {
quaternion.x *= -1;
quaternion.y *= -1;
};
/**
* Converts a Quaternion to right-handed
* @param quaternion Source quaternion to convert to right-handed
*/
_GLTFUtilities._GetRightHandedQuaternionArrayFromRef = function (quaternion) {
quaternion[0] *= -1;
quaternion[1] *= -1;
};
_GLTFUtilities._NormalizeTangentFromRef = function (tangent) {
var length = Math.sqrt(tangent.x * tangent.x + tangent.y * tangent.y + tangent.z * tangent.z);
if (length > 0) {
tangent.x /= length;
tangent.y /= length;
tangent.z /= length;
}
};
return _GLTFUtilities;
}());
Exporter._GLTFUtilities = _GLTFUtilities;
})(Exporter = GLTF2.Exporter || (GLTF2.Exporter = {}));
})(GLTF2 = BABYLON.GLTF2 || (BABYLON.GLTF2 = {}));
})(BABYLON || (BABYLON = {}));
//# sourceMappingURL=babylon.glTFUtilities.js.map
///
//# sourceMappingURL=babylon.glTFExporterExtension.js.map
///
//# sourceMappingURL=babylon.glTFFileExporter.js.map
///
/**
* @hidden
*/
var BABYLON;
(function (BABYLON) {
var GLTF2;
(function (GLTF2) {
var Exporter;
(function (Exporter) {
var Extensions;
(function (Extensions) {
var NAME = "KHR_texture_transform";
/**
* @hidden
*/
var KHR_texture_transform = /** @class */ (function () {
function KHR_texture_transform(exporter) {
/** Name of this extension */
this.name = NAME;
/** Defines whether this extension is enabled */
this.enabled = true;
/** Defines whether this extension is required */
this.required = false;
this._exporter = exporter;
}
KHR_texture_transform.prototype.dispose = function () {
delete this._exporter;
};
KHR_texture_transform.prototype.preExportTextureAsync = function (context, babylonTexture, mimeType) {
var _this = this;
return new Promise(function (resolve, reject) {
var texture_transform_extension = {};
if (babylonTexture.uOffset !== 0 || babylonTexture.vOffset !== 0) {
texture_transform_extension.offset = [babylonTexture.uOffset, babylonTexture.vOffset];
}
if (babylonTexture.uScale !== 1 || babylonTexture.vScale !== 1) {
texture_transform_extension.scale = [babylonTexture.uScale, babylonTexture.vScale];
}
if (babylonTexture.wAng !== 0) {
texture_transform_extension.rotation = babylonTexture.wAng;
}
if (!Object.keys(texture_transform_extension).length) {
resolve(babylonTexture);
}
var scale = texture_transform_extension.scale ? new BABYLON.Vector2(texture_transform_extension.scale[0], texture_transform_extension.scale[1]) : BABYLON.Vector2.One();
var rotation = texture_transform_extension.rotation != null ? texture_transform_extension.rotation : 0;
var offset = texture_transform_extension.offset ? new BABYLON.Vector2(texture_transform_extension.offset[0], texture_transform_extension.offset[1]) : BABYLON.Vector2.Zero();
var scene = babylonTexture.getScene();
if (!scene) {
reject(context + ": \"scene\" is not defined for Babylon texture " + babylonTexture.name + "!");
}
else {
_this.textureTransformTextureAsync(babylonTexture, offset, rotation, scale, scene).then(function (texture) {
resolve(texture);
});
}
});
};
/**
* Transform the babylon texture by the offset, rotation and scale parameters using a procedural texture
* @param babylonTexture
* @param offset
* @param rotation
* @param scale
* @param scene
*/
KHR_texture_transform.prototype.textureTransformTextureAsync = function (babylonTexture, offset, rotation, scale, scene) {
return new Promise(function (resolve, reject) {
var proceduralTexture = new BABYLON.ProceduralTexture("" + babylonTexture.name, babylonTexture.getSize(), "textureTransform", scene);
if (!proceduralTexture) {
BABYLON.Tools.Log("Cannot create procedural texture for " + babylonTexture.name + "!");
resolve(babylonTexture);
}
proceduralTexture.setTexture("textureSampler", babylonTexture);
proceduralTexture.setMatrix("textureTransformMat", babylonTexture.getTextureMatrix());
// isReady trigger creation of effect if it doesnt exist yet
if (proceduralTexture.isReady()) {
proceduralTexture.render();
resolve(proceduralTexture);
}
else {
proceduralTexture.getEffect().executeWhenCompiled(function () {
proceduralTexture.render();
resolve(proceduralTexture);
});
}
});
};
return KHR_texture_transform;
}());
Extensions.KHR_texture_transform = KHR_texture_transform;
Exporter._Exporter.RegisterExtension(NAME, function (exporter) { return new KHR_texture_transform(exporter); });
})(Extensions = Exporter.Extensions || (Exporter.Extensions = {}));
})(Exporter = GLTF2.Exporter || (GLTF2.Exporter = {}));
})(GLTF2 = BABYLON.GLTF2 || (BABYLON.GLTF2 = {}));
})(BABYLON || (BABYLON = {}));
//# sourceMappingURL=KHR_texture_transform.js.map