/**
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* @author Kyle-Larson https://github.com/Kyle-Larson
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* @author Takahiro https://github.com/takahirox
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* @author Lewy Blue https://github.com/looeee
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*
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* Loader loads FBX file and generates Group representing FBX scene.
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* Requires FBX file to be >= 7.0 and in ASCII or >= 6400 in Binary format
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* Versions lower than this may load but will probably have errors
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*
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* Needs Support:
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* Morph normals / blend shape normals
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*
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* FBX format references:
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* https://wiki.blender.org/index.php/User:Mont29/Foundation/FBX_File_Structure
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* http://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_index_html (C++ SDK reference)
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*
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* Binary format specification:
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* https://code.blender.org/2013/08/fbx-binary-file-format-specification/
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*/
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THREE.FBXLoader = (function () {
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var fbxTree;
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var connections;
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var sceneGraph;
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function FBXLoader(manager) {
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this.manager = (manager !== undefined) ? manager : THREE.DefaultLoadingManager;
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}
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FBXLoader.prototype = {
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constructor: FBXLoader,
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crossOrigin: 'anonymous',
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load: function (url, onLoad, onProgress, onError) {
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var self = this;
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var resourceDirectory = THREE.LoaderUtils.extractUrlBase(url);
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var loader = new THREE.FileLoader(this.manager);
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loader.setResponseType('arraybuffer');
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loader.load(url, function (buffer) {
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try {
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var scene = self.parse(buffer, resourceDirectory);
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onLoad(scene);
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} catch (error) {
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setTimeout(function () {
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if (onError) onError(error);
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self.manager.itemError(url);
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}, 0);
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}
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}, onProgress, onError);
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},
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setCrossOrigin: function (value) {
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this.crossOrigin = value;
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return this;
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},
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parse: function (FBXBuffer, resourceDirectory) {
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if (isFbxFormatBinary(FBXBuffer)) {
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fbxTree = new BinaryParser().parse(FBXBuffer);
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} else {
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var FBXText = convertArrayBufferToString(FBXBuffer);
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if (!isFbxFormatASCII(FBXText)) {
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throw new Error('THREE.FBXLoader: Unknown format.');
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}
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if (getFbxVersion(FBXText) < 7000) {
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throw new Error('THREE.FBXLoader: FBX version not supported, FileVersion: ' + getFbxVersion(FBXText));
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}
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fbxTree = new TextParser().parse(FBXText);
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}
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//console.log( FBXTree );
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var textureLoader = new THREE.TextureLoader(this.manager).setPath(resourceDirectory).setCrossOrigin(this.crossOrigin);
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return new FBXTreeParser(textureLoader).parse(fbxTree);
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}
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};
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// Parse the FBXTree object returned by the BinaryParser or TextParser and return a THREE.Group
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function FBXTreeParser(textureLoader) {
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this.textureLoader = textureLoader;
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}
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FBXTreeParser.prototype = {
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constructor: FBXTreeParser,
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parse: function () {
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connections = this.parseConnections();
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var images = this.parseImages();
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var textures = this.parseTextures(images);
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var materials = this.parseMaterials(textures);
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var deformers = this.parseDeformers();
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var geometryMap = new GeometryParser().parse(deformers);
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this.parseScene(deformers, geometryMap, materials);
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return sceneGraph;
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},
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// Parses FBXTree.Connections which holds parent-child connections between objects (e.g. material -> texture, model->geometry )
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// and details the connection type
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parseConnections: function () {
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var connectionMap = new Map();
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if ('Connections' in fbxTree) {
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var rawConnections = fbxTree.Connections.connections;
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rawConnections.forEach(function (rawConnection) {
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var fromID = rawConnection[0];
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var toID = rawConnection[1];
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var relationship = rawConnection[2];
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if (!connectionMap.has(fromID)) {
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connectionMap.set(fromID, {
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parents: [],
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children: []
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});
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}
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var parentRelationship = { ID: toID, relationship: relationship };
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connectionMap.get(fromID).parents.push(parentRelationship);
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if (!connectionMap.has(toID)) {
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connectionMap.set(toID, {
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parents: [],
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children: []
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});
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}
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var childRelationship = { ID: fromID, relationship: relationship };
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connectionMap.get(toID).children.push(childRelationship);
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});
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}
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return connectionMap;
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},
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// Parse FBXTree.Objects.Video for embedded image data
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// These images are connected to textures in FBXTree.Objects.Textures
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// via FBXTree.Connections.
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parseImages: function () {
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var images = {};
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var blobs = {};
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if ('Video' in fbxTree.Objects) {
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var videoNodes = fbxTree.Objects.Video;
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for (var nodeID in videoNodes) {
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var videoNode = videoNodes[nodeID];
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var id = parseInt(nodeID);
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images[id] = videoNode.RelativeFilename || videoNode.Filename;
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// raw image data is in videoNode.Content
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if ('Content' in videoNode) {
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var arrayBufferContent = (videoNode.Content instanceof ArrayBuffer) && (videoNode.Content.byteLength > 0);
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var base64Content = (typeof videoNode.Content === 'string') && (videoNode.Content !== '');
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if (arrayBufferContent || base64Content) {
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var image = this.parseImage(videoNodes[nodeID]);
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blobs[videoNode.RelativeFilename || videoNode.Filename] = image;
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}
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}
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}
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}
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for (var id in images) {
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var filename = images[id];
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if (blobs[filename] !== undefined) images[id] = blobs[filename];
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else images[id] = images[id].split('\\').pop();
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}
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return images;
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},
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// Parse embedded image data in FBXTree.Video.Content
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parseImage: function (videoNode) {
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var content = videoNode.Content;
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var fileName = videoNode.RelativeFilename || videoNode.Filename;
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var extension = fileName.slice(fileName.lastIndexOf('.') + 1).toLowerCase();
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var type;
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switch (extension) {
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case 'bmp':
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type = 'image/bmp';
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break;
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case 'jpg':
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case 'jpeg':
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type = 'image/jpeg';
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break;
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case 'png':
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type = 'image/png';
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break;
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case 'tif':
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type = 'image/tiff';
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break;
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case 'tga':
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if (typeof THREE.TGALoader !== 'function') {
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console.warn('FBXLoader: THREE.TGALoader is required to load TGA textures');
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return;
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} else {
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if (THREE.Loader.Handlers.get('.tga') === null) {
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THREE.Loader.Handlers.add(/\.tga$/i, new THREE.TGALoader());
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}
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type = 'image/tga';
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break;
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}
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default:
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console.warn('FBXLoader: Image type "' + extension + '" is not supported.');
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return;
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}
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if (typeof content === 'string') { // ASCII format
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return 'data:' + type + ';base64,' + content;
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} else { // Binary Format
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var array = new Uint8Array(content);
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return window.URL.createObjectURL(new Blob([array], { type: type }));
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}
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},
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// Parse nodes in FBXTree.Objects.Texture
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// These contain details such as UV scaling, cropping, rotation etc and are connected
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// to images in FBXTree.Objects.Video
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parseTextures: function (images) {
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var textureMap = new Map();
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if ('Texture' in fbxTree.Objects) {
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var textureNodes = fbxTree.Objects.Texture;
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for (var nodeID in textureNodes) {
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var texture = this.parseTexture(textureNodes[nodeID], images);
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textureMap.set(parseInt(nodeID), texture);
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}
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}
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return textureMap;
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},
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// Parse individual node in FBXTree.Objects.Texture
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parseTexture: function (textureNode, images) {
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var texture = this.loadTexture(textureNode, images);
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texture.ID = textureNode.id;
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texture.name = textureNode.attrName;
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var wrapModeU = textureNode.WrapModeU;
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var wrapModeV = textureNode.WrapModeV;
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var valueU = wrapModeU !== undefined ? wrapModeU.value : 0;
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var valueV = wrapModeV !== undefined ? wrapModeV.value : 0;
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// http://download.autodesk.com/us/fbx/SDKdocs/FBX_SDK_Help/files/fbxsdkref/class_k_fbx_texture.html#889640e63e2e681259ea81061b85143a
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// 0: repeat(default), 1: clamp
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texture.wrapS = valueU === 0 ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;
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texture.wrapT = valueV === 0 ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;
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if ('Scaling' in textureNode) {
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var values = textureNode.Scaling.value;
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texture.repeat.x = values[0];
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texture.repeat.y = values[1];
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}
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return texture;
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},
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// load a texture specified as a blob or data URI, or via an external URL using THREE.TextureLoader
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loadTexture: function (textureNode, images) {
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var fileName;
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var currentPath = this.textureLoader.path;
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var children = connections.get(textureNode.id).children;
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if (children !== undefined && children.length > 0 && images[children[0].ID] !== undefined) {
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fileName = images[children[0].ID];
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if (fileName.indexOf('blob:') === 0 || fileName.indexOf('data:') === 0) {
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this.textureLoader.setPath(undefined);
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}
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}
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var texture;
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var extension = textureNode.FileName.slice(-3).toLowerCase();
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if (extension === 'tga') {
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var loader = THREE.Loader.Handlers.get('.tga');
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if (loader === null) {
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console.warn('FBXLoader: TGALoader not found, creating empty placeholder texture for', fileName);
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texture = new THREE.Texture();
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} else {
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texture = loader.load(fileName);
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}
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} else if (extension === 'psd') {
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console.warn('FBXLoader: PSD textures are not supported, creating empty placeholder texture for', fileName);
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texture = new THREE.Texture();
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} else {
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texture = this.textureLoader.load(fileName);
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}
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this.textureLoader.setPath(currentPath);
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return texture;
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},
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// Parse nodes in FBXTree.Objects.Material
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parseMaterials: function (textureMap) {
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var materialMap = new Map();
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if ('Material' in fbxTree.Objects) {
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var materialNodes = fbxTree.Objects.Material;
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for (var nodeID in materialNodes) {
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var material = this.parseMaterial(materialNodes[nodeID], textureMap);
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if (material !== null) materialMap.set(parseInt(nodeID), material);
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}
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}
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return materialMap;
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},
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// Parse single node in FBXTree.Objects.Material
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// Materials are connected to texture maps in FBXTree.Objects.Textures
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// FBX format currently only supports Lambert and Phong shading models
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parseMaterial: function (materialNode, textureMap) {
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var ID = materialNode.id;
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var name = materialNode.attrName;
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var type = materialNode.ShadingModel;
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// Case where FBX wraps shading model in property object.
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if (typeof type === 'object') {
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type = type.value;
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}
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// Ignore unused materials which don't have any connections.
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if (!connections.has(ID)) return null;
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var parameters = this.parseParameters(materialNode, textureMap, ID);
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var material;
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switch (type.toLowerCase()) {
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case 'phong':
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material = new THREE.MeshPhongMaterial();
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break;
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case 'lambert':
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material = new THREE.MeshLambertMaterial();
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break;
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default:
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console.warn('THREE.FBXLoader: unknown material type "%s". Defaulting to MeshPhongMaterial.', type);
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material = new THREE.MeshPhongMaterial({ color: 0x3300ff });
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break;
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}
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material.setValues(parameters);
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material.name = name;
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return material;
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},
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// Parse FBX material and return parameters suitable for a three.js material
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// Also parse the texture map and return any textures associated with the material
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parseParameters: function (materialNode, textureMap, ID) {
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var parameters = {};
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if (materialNode.BumpFactor) {
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parameters.bumpScale = materialNode.BumpFactor.value;
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}
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if (materialNode.Diffuse) {
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parameters.color = new THREE.Color().fromArray(materialNode.Diffuse.value);
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} else if (materialNode.DiffuseColor && materialNode.DiffuseColor.type === 'Color') {
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// The blender exporter exports diffuse here instead of in materialNode.Diffuse
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parameters.color = new THREE.Color().fromArray(materialNode.DiffuseColor.value);
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}
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if (materialNode.DisplacementFactor) {
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parameters.displacementScale = materialNode.DisplacementFactor.value;
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}
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if (materialNode.Emissive) {
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parameters.emissive = new THREE.Color().fromArray(materialNode.Emissive.value);
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} else if (materialNode.EmissiveColor && materialNode.EmissiveColor.type === 'Color') {
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// The blender exporter exports emissive color here instead of in materialNode.Emissive
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parameters.emissive = new THREE.Color().fromArray(materialNode.EmissiveColor.value);
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}
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if (materialNode.EmissiveFactor) {
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parameters.emissiveIntensity = parseFloat(materialNode.EmissiveFactor.value);
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}
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if (materialNode.Opacity) {
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parameters.opacity = parseFloat(materialNode.Opacity.value);
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}
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if (parameters.opacity < 1.0) {
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parameters.transparent = true;
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}
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if (materialNode.ReflectionFactor) {
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parameters.reflectivity = materialNode.ReflectionFactor.value;
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}
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if (materialNode.Shininess) {
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parameters.shininess = materialNode.Shininess.value;
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}
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if (materialNode.Specular) {
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parameters.specular = new THREE.Color().fromArray(materialNode.Specular.value);
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} else if (materialNode.SpecularColor && materialNode.SpecularColor.type === 'Color') {
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// The blender exporter exports specular color here instead of in materialNode.Specular
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parameters.specular = new THREE.Color().fromArray(materialNode.SpecularColor.value);
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}
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var self = this;
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connections.get(ID).children.forEach(function (child) {
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var type = child.relationship;
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switch (type) {
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case 'Bump':
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parameters.bumpMap = self.getTexture(textureMap, child.ID);
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break;
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case 'DiffuseColor':
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parameters.map = self.getTexture(textureMap, child.ID);
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break;
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case 'DisplacementColor':
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parameters.displacementMap = self.getTexture(textureMap, child.ID);
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break;
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case 'EmissiveColor':
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parameters.emissiveMap = self.getTexture(textureMap, child.ID);
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break;
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case 'NormalMap':
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parameters.normalMap = self.getTexture(textureMap, child.ID);
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break;
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case 'ReflectionColor':
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parameters.envMap = self.getTexture(textureMap, child.ID);
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parameters.envMap.mapping = THREE.EquirectangularReflectionMapping;
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break;
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case 'SpecularColor':
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parameters.specularMap = self.getTexture(textureMap, child.ID);
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break;
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case 'TransparentColor':
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parameters.alphaMap = self.getTexture(textureMap, child.ID);
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parameters.transparent = true;
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break;
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case 'AmbientColor':
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case 'ShininessExponent': // AKA glossiness map
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case 'SpecularFactor': // AKA specularLevel
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case 'VectorDisplacementColor': // NOTE: Seems to be a copy of DisplacementColor
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default:
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console.warn('THREE.FBXLoader: %s map is not supported in three.js, skipping texture.', type);
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break;
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}
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});
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return parameters;
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},
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// get a texture from the textureMap for use by a material.
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getTexture: function (textureMap, id) {
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// if the texture is a layered texture, just use the first layer and issue a warning
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if ('LayeredTexture' in fbxTree.Objects && id in fbxTree.Objects.LayeredTexture) {
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console.warn('THREE.FBXLoader: layered textures are not supported in three.js. Discarding all but first layer.');
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id = connections.get(id).children[0].ID;
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}
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return textureMap.get(id);
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},
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// Parse nodes in FBXTree.Objects.Deformer
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// Deformer node can contain skinning or Vertex Cache animation data, however only skinning is supported here
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// Generates map of Skeleton-like objects for use later when generating and binding skeletons.
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parseDeformers: function () {
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var skeletons = {};
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var morphTargets = {};
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if ('Deformer' in fbxTree.Objects) {
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var DeformerNodes = fbxTree.Objects.Deformer;
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for (var nodeID in DeformerNodes) {
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var deformerNode = DeformerNodes[nodeID];
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var relationships = connections.get(parseInt(nodeID));
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if (deformerNode.attrType === 'Skin') {
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var skeleton = this.parseSkeleton(relationships, DeformerNodes);
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skeleton.ID = nodeID;
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if (relationships.parents.length > 1) console.warn('THREE.FBXLoader: skeleton attached to more than one geometry is not supported.');
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skeleton.geometryID = relationships.parents[0].ID;
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skeletons[nodeID] = skeleton;
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} else if (deformerNode.attrType === 'BlendShape') {
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var morphTarget = {
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id: nodeID,
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};
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morphTarget.rawTargets = this.parseMorphTargets(relationships, DeformerNodes);
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morphTarget.id = nodeID;
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if (relationships.parents.length > 1) console.warn('THREE.FBXLoader: morph target attached to more than one geometry is not supported.');
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morphTargets[nodeID] = morphTarget;
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}
|
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}
|
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}
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return {
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skeletons: skeletons,
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morphTargets: morphTargets,
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};
|
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},
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// Parse single nodes in FBXTree.Objects.Deformer
|
// The top level skeleton node has type 'Skin' and sub nodes have type 'Cluster'
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// Each skin node represents a skeleton and each cluster node represents a bone
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parseSkeleton: function (relationships, deformerNodes) {
|
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var rawBones = [];
|
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relationships.children.forEach(function (child) {
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var boneNode = deformerNodes[child.ID];
|
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if (boneNode.attrType !== 'Cluster') return;
|
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var rawBone = {
|
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ID: child.ID,
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indices: [],
|
weights: [],
|
transform: new THREE.Matrix4().fromArray(boneNode.Transform.a),
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transformLink: new THREE.Matrix4().fromArray(boneNode.TransformLink.a),
|
linkMode: boneNode.Mode,
|
|
};
|
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if ('Indexes' in boneNode) {
|
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rawBone.indices = boneNode.Indexes.a;
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rawBone.weights = boneNode.Weights.a;
|
|
}
|
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rawBones.push(rawBone);
|
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});
|
|
return {
|
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rawBones: rawBones,
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bones: []
|
|
};
|
|
},
|
|
// The top level morph deformer node has type "BlendShape" and sub nodes have type "BlendShapeChannel"
|
parseMorphTargets: function (relationships, deformerNodes) {
|
|
var rawMorphTargets = [];
|
|
for (var i = 0; i < relationships.children.length; i++) {
|
|
if (i === 8) {
|
|
console.warn('FBXLoader: maximum of 8 morph targets supported. Ignoring additional targets.');
|
|
break;
|
|
}
|
|
var child = relationships.children[i];
|
|
var morphTargetNode = deformerNodes[child.ID];
|
|
var rawMorphTarget = {
|
|
name: morphTargetNode.attrName,
|
initialWeight: morphTargetNode.DeformPercent,
|
id: morphTargetNode.id,
|
fullWeights: morphTargetNode.FullWeights.a
|
|
};
|
|
if (morphTargetNode.attrType !== 'BlendShapeChannel') return;
|
|
var targetRelationships = connections.get(parseInt(child.ID));
|
|
targetRelationships.children.forEach(function (child) {
|
|
if (child.relationship === undefined) rawMorphTarget.geoID = child.ID;
|
|
});
|
|
rawMorphTargets.push(rawMorphTarget);
|
|
}
|
|
return rawMorphTargets;
|
|
},
|
|
// create the main THREE.Group() to be returned by the loader
|
parseScene: function (deformers, geometryMap, materialMap) {
|
|
sceneGraph = new THREE.Group();
|
|
var modelMap = this.parseModels(deformers.skeletons, geometryMap, materialMap);
|
|
var modelNodes = fbxTree.Objects.Model;
|
|
var self = this;
|
modelMap.forEach(function (model) {
|
|
var modelNode = modelNodes[model.ID];
|
self.setLookAtProperties(model, modelNode);
|
|
var parentConnections = connections.get(model.ID).parents;
|
|
parentConnections.forEach(function (connection) {
|
|
var parent = modelMap.get(connection.ID);
|
if (parent !== undefined) parent.add(model);
|
|
});
|
|
if (model.parent === null) {
|
|
sceneGraph.add(model);
|
|
}
|
|
|
});
|
|
this.bindSkeleton(deformers.skeletons, geometryMap, modelMap);
|
|
this.createAmbientLight();
|
|
this.setupMorphMaterials();
|
|
var animations = new AnimationParser().parse();
|
|
// if all the models where already combined in a single group, just return that
|
if (sceneGraph.children.length === 1 && sceneGraph.children[0].isGroup) {
|
|
sceneGraph.children[0].animations = animations;
|
sceneGraph = sceneGraph.children[0];
|
|
}
|
|
sceneGraph.animations = animations;
|
|
},
|
|
// parse nodes in FBXTree.Objects.Model
|
parseModels: function (skeletons, geometryMap, materialMap) {
|
|
var modelMap = new Map();
|
var modelNodes = fbxTree.Objects.Model;
|
|
for (var nodeID in modelNodes) {
|
|
var id = parseInt(nodeID);
|
var node = modelNodes[nodeID];
|
var relationships = connections.get(id);
|
|
var model = this.buildSkeleton(relationships, skeletons, id, node.attrName);
|
|
if (!model) {
|
|
switch (node.attrType) {
|
|
case 'Camera':
|
model = this.createCamera(relationships);
|
break;
|
case 'Light':
|
model = this.createLight(relationships);
|
break;
|
case 'Mesh':
|
model = this.createMesh(relationships, geometryMap, materialMap);
|
break;
|
case 'NurbsCurve':
|
model = this.createCurve(relationships, geometryMap);
|
break;
|
case 'LimbNode': // usually associated with a Bone, however if a Bone was not created we'll make a Group instead
|
case 'Null':
|
default:
|
model = new THREE.Group();
|
break;
|
|
}
|
|
model.name = THREE.PropertyBinding.sanitizeNodeName(node.attrName);
|
model.ID = id;
|
|
}
|
|
this.setModelTransforms(model, node);
|
modelMap.set(id, model);
|
|
}
|
|
return modelMap;
|
|
},
|
|
buildSkeleton: function (relationships, skeletons, id, name) {
|
|
var bone = null;
|
|
relationships.parents.forEach(function (parent) {
|
|
for (var ID in skeletons) {
|
|
var skeleton = skeletons[ID];
|
|
skeleton.rawBones.forEach(function (rawBone, i) {
|
|
if (rawBone.ID === parent.ID) {
|
|
var subBone = bone;
|
bone = new THREE.Bone();
|
bone.matrixWorld.copy(rawBone.transformLink);
|
|
// set name and id here - otherwise in cases where "subBone" is created it will not have a name / id
|
bone.name = THREE.PropertyBinding.sanitizeNodeName(name);
|
bone.ID = id;
|
|
skeleton.bones[i] = bone;
|
|
// In cases where a bone is shared between multiple meshes
|
// duplicate the bone here and and it as a child of the first bone
|
if (subBone !== null) {
|
|
bone.add(subBone);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
});
|
|
return bone;
|
|
},
|
|
// create a THREE.PerspectiveCamera or THREE.OrthographicCamera
|
createCamera: function (relationships) {
|
|
var model;
|
var cameraAttribute;
|
|
relationships.children.forEach(function (child) {
|
|
var attr = fbxTree.Objects.NodeAttribute[child.ID];
|
|
if (attr !== undefined) {
|
|
cameraAttribute = attr;
|
|
}
|
|
});
|
|
if (cameraAttribute === undefined) {
|
|
model = new THREE.Object3D();
|
|
} else {
|
|
var type = 0;
|
if (cameraAttribute.CameraProjectionType !== undefined && cameraAttribute.CameraProjectionType.value === 1) {
|
|
type = 1;
|
|
}
|
|
var nearClippingPlane = 1;
|
if (cameraAttribute.NearPlane !== undefined) {
|
|
nearClippingPlane = cameraAttribute.NearPlane.value / 1000;
|
|
}
|
|
var farClippingPlane = 1000;
|
if (cameraAttribute.FarPlane !== undefined) {
|
|
farClippingPlane = cameraAttribute.FarPlane.value / 1000;
|
|
}
|
|
|
var width = window.innerWidth;
|
var height = window.innerHeight;
|
|
if (cameraAttribute.AspectWidth !== undefined && cameraAttribute.AspectHeight !== undefined) {
|
|
width = cameraAttribute.AspectWidth.value;
|
height = cameraAttribute.AspectHeight.value;
|
|
}
|
|
var aspect = width / height;
|
|
var fov = 45;
|
if (cameraAttribute.FieldOfView !== undefined) {
|
|
fov = cameraAttribute.FieldOfView.value;
|
|
}
|
|
var focalLength = cameraAttribute.FocalLength ? cameraAttribute.FocalLength.value : null;
|
|
switch (type) {
|
|
case 0: // Perspective
|
model = new THREE.PerspectiveCamera(fov, aspect, nearClippingPlane, farClippingPlane);
|
if (focalLength !== null) model.setFocalLength(focalLength);
|
break;
|
|
case 1: // Orthographic
|
model = new THREE.OrthographicCamera(-width / 2, width / 2, height / 2, -height / 2, nearClippingPlane, farClippingPlane);
|
break;
|
|
default:
|
console.warn('THREE.FBXLoader: Unknown camera type ' + type + '.');
|
model = new THREE.Object3D();
|
break;
|
|
}
|
|
}
|
|
return model;
|
|
},
|
|
// Create a THREE.DirectionalLight, THREE.PointLight or THREE.SpotLight
|
createLight: function (relationships) {
|
|
var model;
|
var lightAttribute;
|
|
relationships.children.forEach(function (child) {
|
|
var attr = fbxTree.Objects.NodeAttribute[child.ID];
|
|
if (attr !== undefined) {
|
|
lightAttribute = attr;
|
|
}
|
|
});
|
|
if (lightAttribute === undefined) {
|
|
model = new THREE.Object3D();
|
|
} else {
|
|
var type;
|
|
// LightType can be undefined for Point lights
|
if (lightAttribute.LightType === undefined) {
|
|
type = 0;
|
|
} else {
|
|
type = lightAttribute.LightType.value;
|
|
}
|
|
var color = 0xffffff;
|
|
if (lightAttribute.Color !== undefined) {
|
|
color = new THREE.Color().fromArray(lightAttribute.Color.value);
|
|
}
|
|
var intensity = (lightAttribute.Intensity === undefined) ? 1 : lightAttribute.Intensity.value / 100;
|
|
// light disabled
|
if (lightAttribute.CastLightOnObject !== undefined && lightAttribute.CastLightOnObject.value === 0) {
|
|
intensity = 0;
|
|
}
|
|
var distance = 0;
|
if (lightAttribute.FarAttenuationEnd !== undefined) {
|
|
if (lightAttribute.EnableFarAttenuation !== undefined && lightAttribute.EnableFarAttenuation.value === 0) {
|
|
distance = 0;
|
|
} else {
|
|
distance = lightAttribute.FarAttenuationEnd.value;
|
|
}
|
|
}
|
|
// TODO: could this be calculated linearly from FarAttenuationStart to FarAttenuationEnd?
|
var decay = 1;
|
|
switch (type) {
|
|
case 0: // Point
|
model = new THREE.PointLight(color, intensity, distance, decay);
|
break;
|
|
case 1: // Directional
|
model = new THREE.DirectionalLight(color, intensity);
|
break;
|
|
case 2: // Spot
|
var angle = Math.PI / 3;
|
|
if (lightAttribute.InnerAngle !== undefined) {
|
|
angle = THREE.Math.degToRad(lightAttribute.InnerAngle.value);
|
|
}
|
|
var penumbra = 0;
|
if (lightAttribute.OuterAngle !== undefined) {
|
|
// TODO: this is not correct - FBX calculates outer and inner angle in degrees
|
// with OuterAngle > InnerAngle && OuterAngle <= Math.PI
|
// while three.js uses a penumbra between (0, 1) to attenuate the inner angle
|
penumbra = THREE.Math.degToRad(lightAttribute.OuterAngle.value);
|
penumbra = Math.max(penumbra, 1);
|
|
}
|
|
model = new THREE.SpotLight(color, intensity, distance, angle, penumbra, decay);
|
break;
|
|
default:
|
console.warn('THREE.FBXLoader: Unknown light type ' + lightAttribute.LightType.value + ', defaulting to a THREE.PointLight.');
|
model = new THREE.PointLight(color, intensity);
|
break;
|
|
}
|
|
if (lightAttribute.CastShadows !== undefined && lightAttribute.CastShadows.value === 1) {
|
|
model.castShadow = true;
|
|
}
|
|
}
|
|
return model;
|
|
},
|
|
createMesh: function (relationships, geometryMap, materialMap) {
|
|
var model;
|
var geometry = null;
|
var material = null;
|
var materials = [];
|
|
// get geometry and materials(s) from connections
|
relationships.children.forEach(function (child) {
|
|
if (geometryMap.has(child.ID)) {
|
|
geometry = geometryMap.get(child.ID);
|
|
}
|
|
if (materialMap.has(child.ID)) {
|
|
materials.push(materialMap.get(child.ID));
|
|
}
|
|
});
|
|
if (materials.length > 1) {
|
|
material = materials;
|
|
} else if (materials.length > 0) {
|
|
material = materials[0];
|
|
} else {
|
|
material = new THREE.MeshPhongMaterial({ color: 0xcccccc });
|
materials.push(material);
|
|
}
|
|
if ('color' in geometry.attributes) {
|
|
materials.forEach(function (material) {
|
|
material.vertexColors = THREE.VertexColors;
|
|
});
|
|
}
|
|
if (geometry.FBX_Deformer) {
|
|
materials.forEach(function (material) {
|
|
material.skinning = true;
|
|
});
|
|
model = new THREE.SkinnedMesh(geometry, material);
|
|
} else {
|
|
model = new THREE.Mesh(geometry, material);
|
|
}
|
|
return model;
|
|
},
|
|
createCurve: function (relationships, geometryMap) {
|
|
var geometry = relationships.children.reduce(function (geo, child) {
|
|
if (geometryMap.has(child.ID)) geo = geometryMap.get(child.ID);
|
|
return geo;
|
|
}, null);
|
|
// FBX does not list materials for Nurbs lines, so we'll just put our own in here.
|
var material = new THREE.LineBasicMaterial({ color: 0x3300ff, linewidth: 1 });
|
return new THREE.Line(geometry, material);
|
|
},
|
|
// parse the model node for transform details and apply them to the model
|
setModelTransforms: function (model, modelNode) {
|
|
var transformData = {};
|
|
if ('RotationOrder' in modelNode) transformData.eulerOrder = parseInt(modelNode.RotationOrder.value);
|
if ('Lcl_Translation' in modelNode) transformData.translation = modelNode.Lcl_Translation.value;
|
if ('RotationOffset' in modelNode) transformData.rotationOffset = modelNode.RotationOffset.value;
|
if ('Lcl_Rotation' in modelNode) transformData.rotation = modelNode.Lcl_Rotation.value;
|
if ('PreRotation' in modelNode) transformData.preRotation = modelNode.PreRotation.value;
|
if ('PostRotation' in modelNode) transformData.postRotation = modelNode.PostRotation.value;
|
if ('Lcl_Scaling' in modelNode) transformData.scale = modelNode.Lcl_Scaling.value;
|
|
var transform = generateTransform(transformData);
|
|
model.applyMatrix(transform);
|
|
},
|
|
setLookAtProperties: function (model, modelNode) {
|
|
if ('LookAtProperty' in modelNode) {
|
|
var children = connections.get(model.ID).children;
|
|
children.forEach(function (child) {
|
|
if (child.relationship === 'LookAtProperty') {
|
|
var lookAtTarget = fbxTree.Objects.Model[child.ID];
|
|
if ('Lcl_Translation' in lookAtTarget) {
|
|
var pos = lookAtTarget.Lcl_Translation.value;
|
|
// DirectionalLight, SpotLight
|
if (model.target !== undefined) {
|
|
model.target.position.fromArray(pos);
|
sceneGraph.add(model.target);
|
|
} else { // Cameras and other Object3Ds
|
|
model.lookAt(new THREE.Vector3().fromArray(pos));
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
},
|
|
bindSkeleton: function (skeletons, geometryMap, modelMap) {
|
|
var bindMatrices = this.parsePoseNodes();
|
|
for (var ID in skeletons) {
|
|
var skeleton = skeletons[ID];
|
|
var parents = connections.get(parseInt(skeleton.ID)).parents;
|
|
parents.forEach(function (parent) {
|
|
if (geometryMap.has(parent.ID)) {
|
|
var geoID = parent.ID;
|
var geoRelationships = connections.get(geoID);
|
|
geoRelationships.parents.forEach(function (geoConnParent) {
|
|
if (modelMap.has(geoConnParent.ID)) {
|
|
var model = modelMap.get(geoConnParent.ID);
|
|
model.bind(new THREE.Skeleton(skeleton.bones), bindMatrices[geoConnParent.ID]);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
},
|
|
parsePoseNodes: function () {
|
|
var bindMatrices = {};
|
|
if ('Pose' in fbxTree.Objects) {
|
|
var BindPoseNode = fbxTree.Objects.Pose;
|
|
for (var nodeID in BindPoseNode) {
|
|
if (BindPoseNode[nodeID].attrType === 'BindPose') {
|
|
var poseNodes = BindPoseNode[nodeID].PoseNode;
|
|
if (Array.isArray(poseNodes)) {
|
|
poseNodes.forEach(function (poseNode) {
|
|
bindMatrices[poseNode.Node] = new THREE.Matrix4().fromArray(poseNode.Matrix.a);
|
|
});
|
|
} else {
|
|
bindMatrices[poseNodes.Node] = new THREE.Matrix4().fromArray(poseNodes.Matrix.a);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return bindMatrices;
|
|
},
|
|
// Parse ambient color in FBXTree.GlobalSettings - if it's not set to black (default), create an ambient light
|
createAmbientLight: function () {
|
|
if ('GlobalSettings' in fbxTree && 'AmbientColor' in fbxTree.GlobalSettings) {
|
|
var ambientColor = fbxTree.GlobalSettings.AmbientColor.value;
|
var r = ambientColor[0];
|
var g = ambientColor[1];
|
var b = ambientColor[2];
|
|
if (r !== 0 || g !== 0 || b !== 0) {
|
|
var color = new THREE.Color(r, g, b);
|
sceneGraph.add(new THREE.AmbientLight(color, 1));
|
|
}
|
|
}
|
|
},
|
|
setupMorphMaterials: function () {
|
|
sceneGraph.traverse(function (child) {
|
|
if (child.isMesh) {
|
|
if (child.geometry.morphAttributes.position || child.geometry.morphAttributes.normal) {
|
|
var uuid = child.uuid;
|
var matUuid = child.material.uuid;
|
|
// if a geometry has morph targets, it cannot share the material with other geometries
|
var sharedMat = false;
|
|
sceneGraph.traverse(function (child) {
|
|
if (child.isMesh) {
|
|
if (child.material.uuid === matUuid && child.uuid !== uuid) sharedMat = true;
|
|
}
|
|
});
|
|
if (sharedMat === true) child.material = child.material.clone();
|
|
child.material.morphTargets = true;
|
|
}
|
|
}
|
|
});
|
|
},
|
|
};
|
|
// parse Geometry data from FBXTree and return map of BufferGeometries
|
function GeometryParser() { }
|
|
GeometryParser.prototype = {
|
|
constructor: GeometryParser,
|
|
// Parse nodes in FBXTree.Objects.Geometry
|
parse: function (deformers) {
|
|
var geometryMap = new Map();
|
|
if ('Geometry' in fbxTree.Objects) {
|
|
var geoNodes = fbxTree.Objects.Geometry;
|
|
for (var nodeID in geoNodes) {
|
|
var relationships = connections.get(parseInt(nodeID));
|
var geo = this.parseGeometry(relationships, geoNodes[nodeID], deformers);
|
|
geometryMap.set(parseInt(nodeID), geo);
|
|
}
|
|
}
|
|
return geometryMap;
|
|
},
|
|
// Parse single node in FBXTree.Objects.Geometry
|
parseGeometry: function (relationships, geoNode, deformers) {
|
|
switch (geoNode.attrType) {
|
|
case 'Mesh':
|
return this.parseMeshGeometry(relationships, geoNode, deformers);
|
break;
|
|
case 'NurbsCurve':
|
return this.parseNurbsGeometry(geoNode);
|
break;
|
|
}
|
|
},
|
|
// Parse single node mesh geometry in FBXTree.Objects.Geometry
|
parseMeshGeometry: function (relationships, geoNode, deformers) {
|
|
var skeletons = deformers.skeletons;
|
var morphTargets = deformers.morphTargets;
|
|
var modelNodes = relationships.parents.map(function (parent) {
|
|
return fbxTree.Objects.Model[parent.ID];
|
|
});
|
|
// don't create geometry if it is not associated with any models
|
if (modelNodes.length === 0) return;
|
|
var skeleton = relationships.children.reduce(function (skeleton, child) {
|
|
if (skeletons[child.ID] !== undefined) skeleton = skeletons[child.ID];
|
|
return skeleton;
|
|
}, null);
|
|
var morphTarget = relationships.children.reduce(function (morphTarget, child) {
|
|
if (morphTargets[child.ID] !== undefined) morphTarget = morphTargets[child.ID];
|
|
return morphTarget;
|
|
}, null);
|
|
// TODO: if there is more than one model associated with the geometry, AND the models have
|
// different geometric transforms, then this will cause problems
|
// if ( modelNodes.length > 1 ) { }
|
|
// For now just assume one model and get the preRotations from that
|
var modelNode = modelNodes[0];
|
|
var transformData = {};
|
|
if ('RotationOrder' in modelNode) transformData.eulerOrder = modelNode.RotationOrder.value;
|
if ('GeometricTranslation' in modelNode) transformData.translation = modelNode.GeometricTranslation.value;
|
if ('GeometricRotation' in modelNode) transformData.rotation = modelNode.GeometricRotation.value;
|
if ('GeometricScaling' in modelNode) transformData.scale = modelNode.GeometricScaling.value;
|
|
var transform = generateTransform(transformData);
|
|
return this.genGeometry(geoNode, skeleton, morphTarget, transform);
|
|
},
|
|
// Generate a THREE.BufferGeometry from a node in FBXTree.Objects.Geometry
|
genGeometry: function (geoNode, skeleton, morphTarget, preTransform) {
|
|
var geo = new THREE.BufferGeometry();
|
if (geoNode.attrName) geo.name = geoNode.attrName;
|
|
var geoInfo = this.parseGeoNode(geoNode, skeleton);
|
var buffers = this.genBuffers(geoInfo);
|
|
var positionAttribute = new THREE.Float32BufferAttribute(buffers.vertex, 3);
|
|
preTransform.applyToBufferAttribute(positionAttribute);
|
|
geo.addAttribute('position', positionAttribute);
|
|
if (buffers.colors.length > 0) {
|
|
geo.addAttribute('color', new THREE.Float32BufferAttribute(buffers.colors, 3));
|
|
}
|
|
if (skeleton) {
|
|
geo.addAttribute('skinIndex', new THREE.Uint16BufferAttribute(buffers.weightsIndices, 4));
|
|
geo.addAttribute('skinWeight', new THREE.Float32BufferAttribute(buffers.vertexWeights, 4));
|
|
// used later to bind the skeleton to the model
|
geo.FBX_Deformer = skeleton;
|
|
}
|
|
if (buffers.normal.length > 0) {
|
|
var normalAttribute = new THREE.Float32BufferAttribute(buffers.normal, 3);
|
|
var normalMatrix = new THREE.Matrix3().getNormalMatrix(preTransform);
|
normalMatrix.applyToBufferAttribute(normalAttribute);
|
|
geo.addAttribute('normal', normalAttribute);
|
|
}
|
|
buffers.uvs.forEach(function (uvBuffer, i) {
|
|
// subsequent uv buffers are called 'uv1', 'uv2', ...
|
var name = 'uv' + (i + 1).toString();
|
|
// the first uv buffer is just called 'uv'
|
if (i === 0) {
|
|
name = 'uv';
|
|
}
|
|
geo.addAttribute(name, new THREE.Float32BufferAttribute(buffers.uvs[i], 2));
|
|
});
|
|
if (geoInfo.material && geoInfo.material.mappingType !== 'AllSame') {
|
|
// Convert the material indices of each vertex into rendering groups on the geometry.
|
var prevMaterialIndex = buffers.materialIndex[0];
|
var startIndex = 0;
|
|
buffers.materialIndex.forEach(function (currentIndex, i) {
|
|
if (currentIndex !== prevMaterialIndex) {
|
|
geo.addGroup(startIndex, i - startIndex, prevMaterialIndex);
|
|
prevMaterialIndex = currentIndex;
|
startIndex = i;
|
|
}
|
|
});
|
|
// the loop above doesn't add the last group, do that here.
|
if (geo.groups.length > 0) {
|
|
var lastGroup = geo.groups[geo.groups.length - 1];
|
var lastIndex = lastGroup.start + lastGroup.count;
|
|
if (lastIndex !== buffers.materialIndex.length) {
|
|
geo.addGroup(lastIndex, buffers.materialIndex.length - lastIndex, prevMaterialIndex);
|
|
}
|
|
}
|
|
// case where there are multiple materials but the whole geometry is only
|
// using one of them
|
if (geo.groups.length === 0) {
|
|
geo.addGroup(0, buffers.materialIndex.length, buffers.materialIndex[0]);
|
|
}
|
|
}
|
|
this.addMorphTargets(geo, geoNode, morphTarget, preTransform);
|
|
return geo;
|
|
},
|
|
parseGeoNode: function (geoNode, skeleton) {
|
|
var geoInfo = {};
|
|
geoInfo.vertexPositions = (geoNode.Vertices !== undefined) ? geoNode.Vertices.a : [];
|
geoInfo.vertexIndices = (geoNode.PolygonVertexIndex !== undefined) ? geoNode.PolygonVertexIndex.a : [];
|
|
if (geoNode.LayerElementColor) {
|
|
geoInfo.color = this.parseVertexColors(geoNode.LayerElementColor[0]);
|
|
}
|
|
if (geoNode.LayerElementMaterial) {
|
|
geoInfo.material = this.parseMaterialIndices(geoNode.LayerElementMaterial[0]);
|
|
}
|
|
if (geoNode.LayerElementNormal) {
|
|
geoInfo.normal = this.parseNormals(geoNode.LayerElementNormal[0]);
|
|
}
|
|
if (geoNode.LayerElementUV) {
|
|
geoInfo.uv = [];
|
|
var i = 0;
|
while (geoNode.LayerElementUV[i]) {
|
|
geoInfo.uv.push(this.parseUVs(geoNode.LayerElementUV[i]));
|
i++;
|
|
}
|
|
}
|
|
geoInfo.weightTable = {};
|
|
if (skeleton !== null) {
|
|
geoInfo.skeleton = skeleton;
|
|
skeleton.rawBones.forEach(function (rawBone, i) {
|
|
// loop over the bone's vertex indices and weights
|
rawBone.indices.forEach(function (index, j) {
|
|
if (geoInfo.weightTable[index] === undefined) geoInfo.weightTable[index] = [];
|
|
geoInfo.weightTable[index].push({
|
|
id: i,
|
weight: rawBone.weights[j],
|
|
});
|
|
});
|
|
});
|
|
}
|
|
return geoInfo;
|
|
},
|
|
genBuffers: function (geoInfo) {
|
|
var buffers = {
|
vertex: [],
|
normal: [],
|
colors: [],
|
uvs: [],
|
materialIndex: [],
|
vertexWeights: [],
|
weightsIndices: [],
|
};
|
|
var polygonIndex = 0;
|
var faceLength = 0;
|
var displayedWeightsWarning = false;
|
|
// these will hold data for a single face
|
var facePositionIndexes = [];
|
var faceNormals = [];
|
var faceColors = [];
|
var faceUVs = [];
|
var faceWeights = [];
|
var faceWeightIndices = [];
|
|
var self = this;
|
geoInfo.vertexIndices.forEach(function (vertexIndex, polygonVertexIndex) {
|
|
var endOfFace = false;
|
|
// Face index and vertex index arrays are combined in a single array
|
// A cube with quad faces looks like this:
|
// PolygonVertexIndex: *24 {
|
// a: 0, 1, 3, -3, 2, 3, 5, -5, 4, 5, 7, -7, 6, 7, 1, -1, 1, 7, 5, -4, 6, 0, 2, -5
|
// }
|
// Negative numbers mark the end of a face - first face here is 0, 1, 3, -3
|
// to find index of last vertex bit shift the index: ^ - 1
|
if (vertexIndex < 0) {
|
|
vertexIndex = vertexIndex ^ -1; // equivalent to ( x * -1 ) - 1
|
endOfFace = true;
|
|
}
|
|
var weightIndices = [];
|
var weights = [];
|
|
facePositionIndexes.push(vertexIndex * 3, vertexIndex * 3 + 1, vertexIndex * 3 + 2);
|
|
if (geoInfo.color) {
|
|
var data = getData(polygonVertexIndex, polygonIndex, vertexIndex, geoInfo.color);
|
|
faceColors.push(data[0], data[1], data[2]);
|
|
}
|
|
if (geoInfo.skeleton) {
|
|
if (geoInfo.weightTable[vertexIndex] !== undefined) {
|
|
geoInfo.weightTable[vertexIndex].forEach(function (wt) {
|
|
weights.push(wt.weight);
|
weightIndices.push(wt.id);
|
|
});
|
|
|
}
|
|
if (weights.length > 4) {
|
|
if (!displayedWeightsWarning) {
|
|
console.warn('THREE.FBXLoader: Vertex has more than 4 skinning weights assigned to vertex. Deleting additional weights.');
|
displayedWeightsWarning = true;
|
|
}
|
|
var wIndex = [0, 0, 0, 0];
|
var Weight = [0, 0, 0, 0];
|
|
weights.forEach(function (weight, weightIndex) {
|
|
var currentWeight = weight;
|
var currentIndex = weightIndices[weightIndex];
|
|
Weight.forEach(function (comparedWeight, comparedWeightIndex, comparedWeightArray) {
|
|
if (currentWeight > comparedWeight) {
|
|
comparedWeightArray[comparedWeightIndex] = currentWeight;
|
currentWeight = comparedWeight;
|
|
var tmp = wIndex[comparedWeightIndex];
|
wIndex[comparedWeightIndex] = currentIndex;
|
currentIndex = tmp;
|
|
}
|
|
});
|
|
});
|
|
weightIndices = wIndex;
|
weights = Weight;
|
|
}
|
|
// if the weight array is shorter than 4 pad with 0s
|
while (weights.length < 4) {
|
|
weights.push(0);
|
weightIndices.push(0);
|
|
}
|
|
for (var i = 0; i < 4; ++i) {
|
|
faceWeights.push(weights[i]);
|
faceWeightIndices.push(weightIndices[i]);
|
|
}
|
|
}
|
|
if (geoInfo.normal) {
|
|
var data = getData(polygonVertexIndex, polygonIndex, vertexIndex, geoInfo.normal);
|
|
faceNormals.push(data[0], data[1], data[2]);
|
|
}
|
|
if (geoInfo.material && geoInfo.material.mappingType !== 'AllSame') {
|
|
var materialIndex = getData(polygonVertexIndex, polygonIndex, vertexIndex, geoInfo.material)[0];
|
|
}
|
|
if (geoInfo.uv) {
|
|
geoInfo.uv.forEach(function (uv, i) {
|
|
var data = getData(polygonVertexIndex, polygonIndex, vertexIndex, uv);
|
|
if (faceUVs[i] === undefined) {
|
|
faceUVs[i] = [];
|
|
}
|
|
faceUVs[i].push(data[0]);
|
faceUVs[i].push(data[1]);
|
|
});
|
|
}
|
|
faceLength++;
|
|
if (endOfFace) {
|
|
self.genFace(buffers, geoInfo, facePositionIndexes, materialIndex, faceNormals, faceColors, faceUVs, faceWeights, faceWeightIndices, faceLength);
|
|
polygonIndex++;
|
faceLength = 0;
|
|
// reset arrays for the next face
|
facePositionIndexes = [];
|
faceNormals = [];
|
faceColors = [];
|
faceUVs = [];
|
faceWeights = [];
|
faceWeightIndices = [];
|
|
}
|
|
});
|
|
return buffers;
|
|
},
|
|
// Generate data for a single face in a geometry. If the face is a quad then split it into 2 tris
|
genFace: function (buffers, geoInfo, facePositionIndexes, materialIndex, faceNormals, faceColors, faceUVs, faceWeights, faceWeightIndices, faceLength) {
|
|
for (var i = 2; i < faceLength; i++) {
|
|
buffers.vertex.push(geoInfo.vertexPositions[facePositionIndexes[0]]);
|
buffers.vertex.push(geoInfo.vertexPositions[facePositionIndexes[1]]);
|
buffers.vertex.push(geoInfo.vertexPositions[facePositionIndexes[2]]);
|
|
buffers.vertex.push(geoInfo.vertexPositions[facePositionIndexes[(i - 1) * 3]]);
|
buffers.vertex.push(geoInfo.vertexPositions[facePositionIndexes[(i - 1) * 3 + 1]]);
|
buffers.vertex.push(geoInfo.vertexPositions[facePositionIndexes[(i - 1) * 3 + 2]]);
|
|
buffers.vertex.push(geoInfo.vertexPositions[facePositionIndexes[i * 3]]);
|
buffers.vertex.push(geoInfo.vertexPositions[facePositionIndexes[i * 3 + 1]]);
|
buffers.vertex.push(geoInfo.vertexPositions[facePositionIndexes[i * 3 + 2]]);
|
|
if (geoInfo.skeleton) {
|
|
buffers.vertexWeights.push(faceWeights[0]);
|
buffers.vertexWeights.push(faceWeights[1]);
|
buffers.vertexWeights.push(faceWeights[2]);
|
buffers.vertexWeights.push(faceWeights[3]);
|
|
buffers.vertexWeights.push(faceWeights[(i - 1) * 4]);
|
buffers.vertexWeights.push(faceWeights[(i - 1) * 4 + 1]);
|
buffers.vertexWeights.push(faceWeights[(i - 1) * 4 + 2]);
|
buffers.vertexWeights.push(faceWeights[(i - 1) * 4 + 3]);
|
|
buffers.vertexWeights.push(faceWeights[i * 4]);
|
buffers.vertexWeights.push(faceWeights[i * 4 + 1]);
|
buffers.vertexWeights.push(faceWeights[i * 4 + 2]);
|
buffers.vertexWeights.push(faceWeights[i * 4 + 3]);
|
|
buffers.weightsIndices.push(faceWeightIndices[0]);
|
buffers.weightsIndices.push(faceWeightIndices[1]);
|
buffers.weightsIndices.push(faceWeightIndices[2]);
|
buffers.weightsIndices.push(faceWeightIndices[3]);
|
|
buffers.weightsIndices.push(faceWeightIndices[(i - 1) * 4]);
|
buffers.weightsIndices.push(faceWeightIndices[(i - 1) * 4 + 1]);
|
buffers.weightsIndices.push(faceWeightIndices[(i - 1) * 4 + 2]);
|
buffers.weightsIndices.push(faceWeightIndices[(i - 1) * 4 + 3]);
|
|
buffers.weightsIndices.push(faceWeightIndices[i * 4]);
|
buffers.weightsIndices.push(faceWeightIndices[i * 4 + 1]);
|
buffers.weightsIndices.push(faceWeightIndices[i * 4 + 2]);
|
buffers.weightsIndices.push(faceWeightIndices[i * 4 + 3]);
|
|
}
|
|
if (geoInfo.color) {
|
|
buffers.colors.push(faceColors[0]);
|
buffers.colors.push(faceColors[1]);
|
buffers.colors.push(faceColors[2]);
|
|
buffers.colors.push(faceColors[(i - 1) * 3]);
|
buffers.colors.push(faceColors[(i - 1) * 3 + 1]);
|
buffers.colors.push(faceColors[(i - 1) * 3 + 2]);
|
|
buffers.colors.push(faceColors[i * 3]);
|
buffers.colors.push(faceColors[i * 3 + 1]);
|
buffers.colors.push(faceColors[i * 3 + 2]);
|
|
}
|
|
if (geoInfo.material && geoInfo.material.mappingType !== 'AllSame') {
|
|
buffers.materialIndex.push(materialIndex);
|
buffers.materialIndex.push(materialIndex);
|
buffers.materialIndex.push(materialIndex);
|
|
}
|
|
if (geoInfo.normal) {
|
|
buffers.normal.push(faceNormals[0]);
|
buffers.normal.push(faceNormals[1]);
|
buffers.normal.push(faceNormals[2]);
|
|
buffers.normal.push(faceNormals[(i - 1) * 3]);
|
buffers.normal.push(faceNormals[(i - 1) * 3 + 1]);
|
buffers.normal.push(faceNormals[(i - 1) * 3 + 2]);
|
|
buffers.normal.push(faceNormals[i * 3]);
|
buffers.normal.push(faceNormals[i * 3 + 1]);
|
buffers.normal.push(faceNormals[i * 3 + 2]);
|
|
}
|
|
if (geoInfo.uv) {
|
|
geoInfo.uv.forEach(function (uv, j) {
|
|
if (buffers.uvs[j] === undefined) buffers.uvs[j] = [];
|
|
buffers.uvs[j].push(faceUVs[j][0]);
|
buffers.uvs[j].push(faceUVs[j][1]);
|
|
buffers.uvs[j].push(faceUVs[j][(i - 1) * 2]);
|
buffers.uvs[j].push(faceUVs[j][(i - 1) * 2 + 1]);
|
|
buffers.uvs[j].push(faceUVs[j][i * 2]);
|
buffers.uvs[j].push(faceUVs[j][i * 2 + 1]);
|
|
});
|
|
}
|
|
}
|
|
},
|
|
addMorphTargets: function (parentGeo, parentGeoNode, morphTarget, preTransform) {
|
|
if (morphTarget === null) return;
|
|
parentGeo.morphAttributes.position = [];
|
parentGeo.morphAttributes.normal = [];
|
|
var self = this;
|
morphTarget.rawTargets.forEach(function (rawTarget) {
|
|
var morphGeoNode = fbxTree.Objects.Geometry[rawTarget.geoID];
|
|
if (morphGeoNode !== undefined) {
|
|
self.genMorphGeometry(parentGeo, parentGeoNode, morphGeoNode, preTransform);
|
|
}
|
|
});
|
|
},
|
|
// a morph geometry node is similar to a standard node, and the node is also contained
|
// in FBXTree.Objects.Geometry, however it can only have attributes for position, normal
|
// and a special attribute Index defining which vertices of the original geometry are affected
|
// Normal and position attributes only have data for the vertices that are affected by the morph
|
genMorphGeometry: function (parentGeo, parentGeoNode, morphGeoNode, preTransform) {
|
|
var morphGeo = new THREE.BufferGeometry();
|
if (morphGeoNode.attrName) morphGeo.name = morphGeoNode.attrName;
|
|
var vertexIndices = (parentGeoNode.PolygonVertexIndex !== undefined) ? parentGeoNode.PolygonVertexIndex.a : [];
|
|
// make a copy of the parent's vertex positions
|
var vertexPositions = (parentGeoNode.Vertices !== undefined) ? parentGeoNode.Vertices.a.slice() : [];
|
|
var morphPositions = (morphGeoNode.Vertices !== undefined) ? morphGeoNode.Vertices.a : [];
|
var indices = (morphGeoNode.Indexes !== undefined) ? morphGeoNode.Indexes.a : [];
|
|
for (var i = 0; i < indices.length; i++) {
|
|
var morphIndex = indices[i] * 3;
|
|
// FBX format uses blend shapes rather than morph targets. This can be converted
|
// by additively combining the blend shape positions with the original geometry's positions
|
vertexPositions[morphIndex] += morphPositions[i * 3];
|
vertexPositions[morphIndex + 1] += morphPositions[i * 3 + 1];
|
vertexPositions[morphIndex + 2] += morphPositions[i * 3 + 2];
|
|
}
|
|
// TODO: add morph normal support
|
var morphGeoInfo = {
|
vertexIndices: vertexIndices,
|
vertexPositions: vertexPositions,
|
};
|
|
var morphBuffers = this.genBuffers(morphGeoInfo);
|
|
var positionAttribute = new THREE.Float32BufferAttribute(morphBuffers.vertex, 3);
|
positionAttribute.name = morphGeoNode.attrName;
|
|
preTransform.applyToBufferAttribute(positionAttribute);
|
|
parentGeo.morphAttributes.position.push(positionAttribute);
|
|
},
|
|
// Parse normal from FBXTree.Objects.Geometry.LayerElementNormal if it exists
|
parseNormals: function (NormalNode) {
|
|
var mappingType = NormalNode.MappingInformationType;
|
var referenceType = NormalNode.ReferenceInformationType;
|
var buffer = NormalNode.Normals.a;
|
var indexBuffer = [];
|
if (referenceType === 'IndexToDirect') {
|
|
if ('NormalIndex' in NormalNode) {
|
|
indexBuffer = NormalNode.NormalIndex.a;
|
|
} else if ('NormalsIndex' in NormalNode) {
|
|
indexBuffer = NormalNode.NormalsIndex.a;
|
|
}
|
|
}
|
|
return {
|
dataSize: 3,
|
buffer: buffer,
|
indices: indexBuffer,
|
mappingType: mappingType,
|
referenceType: referenceType
|
};
|
|
},
|
|
// Parse UVs from FBXTree.Objects.Geometry.LayerElementUV if it exists
|
parseUVs: function (UVNode) {
|
|
var mappingType = UVNode.MappingInformationType;
|
var referenceType = UVNode.ReferenceInformationType;
|
var buffer = UVNode.UV.a;
|
var indexBuffer = [];
|
if (referenceType === 'IndexToDirect') {
|
|
indexBuffer = UVNode.UVIndex.a;
|
|
}
|
|
return {
|
dataSize: 2,
|
buffer: buffer,
|
indices: indexBuffer,
|
mappingType: mappingType,
|
referenceType: referenceType
|
};
|
|
},
|
|
// Parse Vertex Colors from FBXTree.Objects.Geometry.LayerElementColor if it exists
|
parseVertexColors: function (ColorNode) {
|
|
var mappingType = ColorNode.MappingInformationType;
|
var referenceType = ColorNode.ReferenceInformationType;
|
var buffer = ColorNode.Colors.a;
|
var indexBuffer = [];
|
if (referenceType === 'IndexToDirect') {
|
|
indexBuffer = ColorNode.ColorIndex.a;
|
|
}
|
|
return {
|
dataSize: 4,
|
buffer: buffer,
|
indices: indexBuffer,
|
mappingType: mappingType,
|
referenceType: referenceType
|
};
|
|
},
|
|
// Parse mapping and material data in FBXTree.Objects.Geometry.LayerElementMaterial if it exists
|
parseMaterialIndices: function (MaterialNode) {
|
|
var mappingType = MaterialNode.MappingInformationType;
|
var referenceType = MaterialNode.ReferenceInformationType;
|
|
if (mappingType === 'NoMappingInformation') {
|
|
return {
|
dataSize: 1,
|
buffer: [0],
|
indices: [0],
|
mappingType: 'AllSame',
|
referenceType: referenceType
|
};
|
|
}
|
|
var materialIndexBuffer = MaterialNode.Materials.a;
|
|
// Since materials are stored as indices, there's a bit of a mismatch between FBX and what
|
// we expect.So we create an intermediate buffer that points to the index in the buffer,
|
// for conforming with the other functions we've written for other data.
|
var materialIndices = [];
|
|
for (var i = 0; i < materialIndexBuffer.length; ++i) {
|
|
materialIndices.push(i);
|
|
}
|
|
return {
|
dataSize: 1,
|
buffer: materialIndexBuffer,
|
indices: materialIndices,
|
mappingType: mappingType,
|
referenceType: referenceType
|
};
|
|
},
|
|
// Generate a NurbGeometry from a node in FBXTree.Objects.Geometry
|
parseNurbsGeometry: function (geoNode) {
|
|
if (THREE.NURBSCurve === undefined) {
|
|
console.error('THREE.FBXLoader: The loader relies on THREE.NURBSCurve for any nurbs present in the model. Nurbs will show up as empty geometry.');
|
return new THREE.BufferGeometry();
|
|
}
|
|
var order = parseInt(geoNode.Order);
|
|
if (isNaN(order)) {
|
|
console.error('THREE.FBXLoader: Invalid Order %s given for geometry ID: %s', geoNode.Order, geoNode.id);
|
return new THREE.BufferGeometry();
|
|
}
|
|
var degree = order - 1;
|
|
var knots = geoNode.KnotVector.a;
|
var controlPoints = [];
|
var pointsValues = geoNode.Points.a;
|
|
for (var i = 0, l = pointsValues.length; i < l; i += 4) {
|
|
controlPoints.push(new THREE.Vector4().fromArray(pointsValues, i));
|
|
}
|
|
var startKnot, endKnot;
|
|
if (geoNode.Form === 'Closed') {
|
|
controlPoints.push(controlPoints[0]);
|
|
} else if (geoNode.Form === 'Periodic') {
|
|
startKnot = degree;
|
endKnot = knots.length - 1 - startKnot;
|
|
for (var i = 0; i < degree; ++i) {
|
|
controlPoints.push(controlPoints[i]);
|
|
}
|
|
}
|
|
var curve = new THREE.NURBSCurve(degree, knots, controlPoints, startKnot, endKnot);
|
var vertices = curve.getPoints(controlPoints.length * 7);
|
|
var positions = new Float32Array(vertices.length * 3);
|
|
vertices.forEach(function (vertex, i) {
|
|
vertex.toArray(positions, i * 3);
|
|
});
|
|
var geometry = new THREE.BufferGeometry();
|
geometry.addAttribute('position', new THREE.BufferAttribute(positions, 3));
|
|
return geometry;
|
|
},
|
|
};
|
|
// parse animation data from FBXTree
|
function AnimationParser() { }
|
|
AnimationParser.prototype = {
|
|
constructor: AnimationParser,
|
|
// take raw animation clips and turn them into three.js animation clips
|
parse: function () {
|
|
var animationClips = [];
|
|
|
var rawClips = this.parseClips();
|
|
if (rawClips === undefined) return;
|
|
for (var key in rawClips) {
|
|
var rawClip = rawClips[key];
|
|
var clip = this.addClip(rawClip);
|
|
animationClips.push(clip);
|
|
}
|
|
return animationClips;
|
|
},
|
|
parseClips: function () {
|
|
// since the actual transformation data is stored in FBXTree.Objects.AnimationCurve,
|
// if this is undefined we can safely assume there are no animations
|
if (fbxTree.Objects.AnimationCurve === undefined) return undefined;
|
|
var curveNodesMap = this.parseAnimationCurveNodes();
|
|
this.parseAnimationCurves(curveNodesMap);
|
|
var layersMap = this.parseAnimationLayers(curveNodesMap);
|
var rawClips = this.parseAnimStacks(layersMap);
|
|
return rawClips;
|
|
},
|
|
// parse nodes in FBXTree.Objects.AnimationCurveNode
|
// each AnimationCurveNode holds data for an animation transform for a model (e.g. left arm rotation )
|
// and is referenced by an AnimationLayer
|
parseAnimationCurveNodes: function () {
|
|
var rawCurveNodes = fbxTree.Objects.AnimationCurveNode;
|
|
var curveNodesMap = new Map();
|
|
for (var nodeID in rawCurveNodes) {
|
|
var rawCurveNode = rawCurveNodes[nodeID];
|
|
if (rawCurveNode.attrName.match(/S|R|T|DeformPercent/) !== null) {
|
|
var curveNode = {
|
|
id: rawCurveNode.id,
|
attr: rawCurveNode.attrName,
|
curves: {},
|
|
};
|
|
curveNodesMap.set(curveNode.id, curveNode);
|
|
}
|
|
}
|
|
return curveNodesMap;
|
|
},
|
|
// parse nodes in FBXTree.Objects.AnimationCurve and connect them up to
|
// previously parsed AnimationCurveNodes. Each AnimationCurve holds data for a single animated
|
// axis ( e.g. times and values of x rotation)
|
parseAnimationCurves: function (curveNodesMap) {
|
|
var rawCurves = fbxTree.Objects.AnimationCurve;
|
|
// TODO: Many values are identical up to roundoff error, but won't be optimised
|
// e.g. position times: [0, 0.4, 0. 8]
|
// position values: [7.23538335023477e-7, 93.67518615722656, -0.9982695579528809, 7.23538335023477e-7, 93.67518615722656, -0.9982695579528809, 7.235384487103147e-7, 93.67520904541016, -0.9982695579528809]
|
// clearly, this should be optimised to
|
// times: [0], positions [7.23538335023477e-7, 93.67518615722656, -0.9982695579528809]
|
// this shows up in nearly every FBX file, and generally time array is length > 100
|
|
for (var nodeID in rawCurves) {
|
|
var animationCurve = {
|
|
id: rawCurves[nodeID].id,
|
times: rawCurves[nodeID].KeyTime.a.map(convertFBXTimeToSeconds),
|
values: rawCurves[nodeID].KeyValueFloat.a,
|
|
};
|
|
var relationships = connections.get(animationCurve.id);
|
|
if (relationships !== undefined) {
|
|
var animationCurveID = relationships.parents[0].ID;
|
var animationCurveRelationship = relationships.parents[0].relationship;
|
|
if (animationCurveRelationship.match(/X/)) {
|
|
curveNodesMap.get(animationCurveID).curves['x'] = animationCurve;
|
|
} else if (animationCurveRelationship.match(/Y/)) {
|
|
curveNodesMap.get(animationCurveID).curves['y'] = animationCurve;
|
|
} else if (animationCurveRelationship.match(/Z/)) {
|
|
curveNodesMap.get(animationCurveID).curves['z'] = animationCurve;
|
|
} else if (animationCurveRelationship.match(/d|DeformPercent/) && curveNodesMap.has(animationCurveID)) {
|
|
curveNodesMap.get(animationCurveID).curves['morph'] = animationCurve;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
// parse nodes in FBXTree.Objects.AnimationLayer. Each layers holds references
|
// to various AnimationCurveNodes and is referenced by an AnimationStack node
|
// note: theoretically a stack can have multiple layers, however in practice there always seems to be one per stack
|
parseAnimationLayers: function (curveNodesMap) {
|
|
var rawLayers = fbxTree.Objects.AnimationLayer;
|
|
var layersMap = new Map();
|
|
for (var nodeID in rawLayers) {
|
|
var layerCurveNodes = [];
|
|
var connection = connections.get(parseInt(nodeID));
|
|
if (connection !== undefined) {
|
|
// all the animationCurveNodes used in the layer
|
var children = connection.children;
|
|
var self = this;
|
children.forEach(function (child, i) {
|
|
if (curveNodesMap.has(child.ID)) {
|
|
var curveNode = curveNodesMap.get(child.ID);
|
|
// check that the curves are defined for at least one axis, otherwise ignore the curveNode
|
if (curveNode.curves.x !== undefined || curveNode.curves.y !== undefined || curveNode.curves.z !== undefined) {
|
|
if (layerCurveNodes[i] === undefined) {
|
|
var modelID;
|
|
connections.get(child.ID).parents.forEach(function (parent) {
|
|
if (parent.relationship !== undefined) modelID = parent.ID;
|
|
});
|
|
var rawModel = fbxTree.Objects.Model[modelID.toString()];
|
|
var node = {
|
|
modelName: THREE.PropertyBinding.sanitizeNodeName(rawModel.attrName),
|
initialPosition: [0, 0, 0],
|
initialRotation: [0, 0, 0],
|
initialScale: [1, 1, 1],
|
transform: self.getModelAnimTransform(rawModel),
|
|
};
|
|
// if the animated model is pre rotated, we'll have to apply the pre rotations to every
|
// animation value as well
|
if ('PreRotation' in rawModel) node.preRotations = rawModel.PreRotation.value;
|
if ('PostRotation' in rawModel) node.postRotations = rawModel.PostRotation.value;
|
|
layerCurveNodes[i] = node;
|
|
}
|
|
layerCurveNodes[i][curveNode.attr] = curveNode;
|
|
} else if (curveNode.curves.morph !== undefined) {
|
|
if (layerCurveNodes[i] === undefined) {
|
|
var deformerID;
|
|
connections.get(child.ID).parents.forEach(function (parent) {
|
|
if (parent.relationship !== undefined) deformerID = parent.ID;
|
|
});
|
|
var morpherID = connections.get(deformerID).parents[0].ID;
|
var geoID = connections.get(morpherID).parents[0].ID;
|
|
// assuming geometry is not used in more than one model
|
var modelID = connections.get(geoID).parents[0].ID;
|
|
var rawModel = fbxTree.Objects.Model[modelID];
|
|
var node = {
|
|
modelName: THREE.PropertyBinding.sanitizeNodeName(rawModel.attrName),
|
morphName: fbxTree.Objects.Deformer[deformerID].attrName,
|
|
};
|
|
layerCurveNodes[i] = node;
|
|
}
|
|
layerCurveNodes[i][curveNode.attr] = curveNode;
|
|
}
|
|
}
|
|
});
|
|
layersMap.set(parseInt(nodeID), layerCurveNodes);
|
|
}
|
|
}
|
|
return layersMap;
|
|
},
|
|
getModelAnimTransform: function (modelNode) {
|
|
var transformData = {};
|
|
if ('RotationOrder' in modelNode) transformData.eulerOrder = parseInt(modelNode.RotationOrder.value);
|
|
if ('Lcl_Translation' in modelNode) transformData.translation = modelNode.Lcl_Translation.value;
|
if ('RotationOffset' in modelNode) transformData.rotationOffset = modelNode.RotationOffset.value;
|
|
if ('Lcl_Rotation' in modelNode) transformData.rotation = modelNode.Lcl_Rotation.value;
|
if ('PreRotation' in modelNode) transformData.preRotation = modelNode.PreRotation.value;
|
|
if ('PostRotation' in modelNode) transformData.postRotation = modelNode.PostRotation.value;
|
|
if ('Lcl_Scaling' in modelNode) transformData.scale = modelNode.Lcl_Scaling.value;
|
|
return generateTransform(transformData);
|
|
},
|
|
// parse nodes in FBXTree.Objects.AnimationStack. These are the top level node in the animation
|
// hierarchy. Each Stack node will be used to create a THREE.AnimationClip
|
parseAnimStacks: function (layersMap) {
|
|
var rawStacks = fbxTree.Objects.AnimationStack;
|
|
// connect the stacks (clips) up to the layers
|
var rawClips = {};
|
|
for (var nodeID in rawStacks) {
|
|
var children = connections.get(parseInt(nodeID)).children;
|
|
if (children.length > 1) {
|
|
// it seems like stacks will always be associated with a single layer. But just in case there are files
|
// where there are multiple layers per stack, we'll display a warning
|
console.warn('THREE.FBXLoader: Encountered an animation stack with multiple layers, this is currently not supported. Ignoring subsequent layers.');
|
|
}
|
|
var layer = layersMap.get(children[0].ID);
|
|
rawClips[nodeID] = {
|
|
name: rawStacks[nodeID].attrName,
|
layer: layer,
|
|
};
|
|
}
|
|
return rawClips;
|
|
},
|
|
addClip: function (rawClip) {
|
|
var tracks = [];
|
|
var self = this;
|
rawClip.layer.forEach(function (rawTracks) {
|
|
tracks = tracks.concat(self.generateTracks(rawTracks));
|
|
});
|
|
return new THREE.AnimationClip(rawClip.name, -1, tracks);
|
|
},
|
|
generateTracks: function (rawTracks) {
|
|
var tracks = [];
|
|
var initialPosition = new THREE.Vector3();
|
var initialRotation = new THREE.Quaternion();
|
var initialScale = new THREE.Vector3();
|
|
if (rawTracks.transform) rawTracks.transform.decompose(initialPosition, initialRotation, initialScale);
|
|
initialPosition = initialPosition.toArray();
|
initialRotation = new THREE.Euler().setFromQuaternion(initialRotation).toArray(); // todo: euler order
|
initialScale = initialScale.toArray();
|
|
if (rawTracks.T !== undefined && Object.keys(rawTracks.T.curves).length > 0) {
|
|
var positionTrack = this.generateVectorTrack(rawTracks.modelName, rawTracks.T.curves, initialPosition, 'position');
|
if (positionTrack !== undefined) tracks.push(positionTrack);
|
|
}
|
|
if (rawTracks.R !== undefined && Object.keys(rawTracks.R.curves).length > 0) {
|
|
var rotationTrack = this.generateRotationTrack(rawTracks.modelName, rawTracks.R.curves, initialRotation, rawTracks.preRotations, rawTracks.postRotations);
|
if (rotationTrack !== undefined) tracks.push(rotationTrack);
|
|
}
|
|
if (rawTracks.S !== undefined && Object.keys(rawTracks.S.curves).length > 0) {
|
|
var scaleTrack = this.generateVectorTrack(rawTracks.modelName, rawTracks.S.curves, initialScale, 'scale');
|
if (scaleTrack !== undefined) tracks.push(scaleTrack);
|
|
}
|
|
if (rawTracks.DeformPercent !== undefined) {
|
|
var morphTrack = this.generateMorphTrack(rawTracks);
|
if (morphTrack !== undefined) tracks.push(morphTrack);
|
|
}
|
|
return tracks;
|
|
},
|
|
generateVectorTrack: function (modelName, curves, initialValue, type) {
|
|
var times = this.getTimesForAllAxes(curves);
|
var values = this.getKeyframeTrackValues(times, curves, initialValue);
|
|
return new THREE.VectorKeyframeTrack(modelName + '.' + type, times, values);
|
|
},
|
|
generateRotationTrack: function (modelName, curves, initialValue, preRotations, postRotations) {
|
|
if (curves.x !== undefined) {
|
|
this.interpolateRotations(curves.x);
|
curves.x.values = curves.x.values.map(THREE.Math.degToRad);
|
|
}
|
if (curves.y !== undefined) {
|
|
this.interpolateRotations(curves.y);
|
curves.y.values = curves.y.values.map(THREE.Math.degToRad);
|
|
}
|
if (curves.z !== undefined) {
|
|
this.interpolateRotations(curves.z);
|
curves.z.values = curves.z.values.map(THREE.Math.degToRad);
|
|
}
|
|
var times = this.getTimesForAllAxes(curves);
|
var values = this.getKeyframeTrackValues(times, curves, initialValue);
|
|
if (preRotations !== undefined) {
|
|
preRotations = preRotations.map(THREE.Math.degToRad);
|
preRotations.push('ZYX');
|
|
preRotations = new THREE.Euler().fromArray(preRotations);
|
preRotations = new THREE.Quaternion().setFromEuler(preRotations);
|
|
}
|
|
if (postRotations !== undefined) {
|
|
postRotations = postRotations.map(THREE.Math.degToRad);
|
postRotations.push('ZYX');
|
|
postRotations = new THREE.Euler().fromArray(postRotations);
|
postRotations = new THREE.Quaternion().setFromEuler(postRotations).inverse();
|
|
}
|
|
var quaternion = new THREE.Quaternion();
|
var euler = new THREE.Euler();
|
|
var quaternionValues = [];
|
|
for (var i = 0; i < values.length; i += 3) {
|
|
euler.set(values[i], values[i + 1], values[i + 2], 'ZYX');
|
|
quaternion.setFromEuler(euler);
|
|
if (preRotations !== undefined) quaternion.premultiply(preRotations);
|
if (postRotations !== undefined) quaternion.multiply(postRotations);
|
|
quaternion.toArray(quaternionValues, (i / 3) * 4);
|
|
}
|
|
return new THREE.QuaternionKeyframeTrack(modelName + '.quaternion', times, quaternionValues);
|
|
},
|
|
generateMorphTrack: function (rawTracks) {
|
|
var curves = rawTracks.DeformPercent.curves.morph;
|
var values = curves.values.map(function (val) {
|
|
return val / 100;
|
|
});
|
|
var morphNum = sceneGraph.getObjectByName(rawTracks.modelName).morphTargetDictionary[rawTracks.morphName];
|
|
return new THREE.NumberKeyframeTrack(rawTracks.modelName + '.morphTargetInfluences[' + morphNum + ']', curves.times, values);
|
|
},
|
|
// For all animated objects, times are defined separately for each axis
|
// Here we'll combine the times into one sorted array without duplicates
|
getTimesForAllAxes: function (curves) {
|
|
var times = [];
|
|
// first join together the times for each axis, if defined
|
if (curves.x !== undefined) times = times.concat(curves.x.times);
|
if (curves.y !== undefined) times = times.concat(curves.y.times);
|
if (curves.z !== undefined) times = times.concat(curves.z.times);
|
|
// then sort them and remove duplicates
|
times = times.sort(function (a, b) {
|
|
return a - b;
|
|
}).filter(function (elem, index, array) {
|
|
return array.indexOf(elem) == index;
|
|
});
|
|
return times;
|
|
},
|
|
getKeyframeTrackValues: function (times, curves, initialValue) {
|
|
var prevValue = initialValue;
|
|
var values = [];
|
|
var xIndex = -1;
|
var yIndex = -1;
|
var zIndex = -1;
|
|
times.forEach(function (time) {
|
|
if (curves.x) xIndex = curves.x.times.indexOf(time);
|
if (curves.y) yIndex = curves.y.times.indexOf(time);
|
if (curves.z) zIndex = curves.z.times.indexOf(time);
|
|
// if there is an x value defined for this frame, use that
|
if (xIndex !== -1) {
|
|
var xValue = curves.x.values[xIndex];
|
values.push(xValue);
|
prevValue[0] = xValue;
|
|
} else {
|
|
// otherwise use the x value from the previous frame
|
values.push(prevValue[0]);
|
|
}
|
|
if (yIndex !== -1) {
|
|
var yValue = curves.y.values[yIndex];
|
values.push(yValue);
|
prevValue[1] = yValue;
|
|
} else {
|
|
values.push(prevValue[1]);
|
|
}
|
|
if (zIndex !== -1) {
|
|
var zValue = curves.z.values[zIndex];
|
values.push(zValue);
|
prevValue[2] = zValue;
|
|
} else {
|
|
values.push(prevValue[2]);
|
|
}
|
|
});
|
|
return values;
|
|
},
|
|
// Rotations are defined as Euler angles which can have values of any size
|
// These will be converted to quaternions which don't support values greater than
|
// PI, so we'll interpolate large rotations
|
interpolateRotations: function (curve) {
|
|
for (var i = 1; i < curve.values.length; i++) {
|
|
var initialValue = curve.values[i - 1];
|
var valuesSpan = curve.values[i] - initialValue;
|
|
var absoluteSpan = Math.abs(valuesSpan);
|
|
if (absoluteSpan >= 180) {
|
|
var numSubIntervals = absoluteSpan / 180;
|
|
var step = valuesSpan / numSubIntervals;
|
var nextValue = initialValue + step;
|
|
var initialTime = curve.times[i - 1];
|
var timeSpan = curve.times[i] - initialTime;
|
var interval = timeSpan / numSubIntervals;
|
var nextTime = initialTime + interval;
|
|
var interpolatedTimes = [];
|
var interpolatedValues = [];
|
|
while (nextTime < curve.times[i]) {
|
|
interpolatedTimes.push(nextTime);
|
nextTime += interval;
|
|
interpolatedValues.push(nextValue);
|
nextValue += step;
|
|
}
|
|
curve.times = inject(curve.times, i, interpolatedTimes);
|
curve.values = inject(curve.values, i, interpolatedValues);
|
|
}
|
|
}
|
|
},
|
|
};
|
|
// parse an FBX file in ASCII format
|
function TextParser() { }
|
|
TextParser.prototype = {
|
|
constructor: TextParser,
|
|
getPrevNode: function () {
|
|
return this.nodeStack[this.currentIndent - 2];
|
|
},
|
|
getCurrentNode: function () {
|
|
return this.nodeStack[this.currentIndent - 1];
|
|
},
|
|
getCurrentProp: function () {
|
|
return this.currentProp;
|
|
},
|
|
pushStack: function (node) {
|
|
this.nodeStack.push(node);
|
this.currentIndent += 1;
|
|
},
|
|
popStack: function () {
|
|
this.nodeStack.pop();
|
this.currentIndent -= 1;
|
|
},
|
|
setCurrentProp: function (val, name) {
|
|
this.currentProp = val;
|
this.currentPropName = name;
|
|
},
|
|
parse: function (text) {
|
|
this.currentIndent = 0;
|
console.log("FBXTree: ", FBXTree);
|
this.allNodes = new FBXTree();
|
this.nodeStack = [];
|
this.currentProp = [];
|
this.currentPropName = '';
|
|
var self = this;
|
|
var split = text.split(/[\r\n]+/);
|
|
split.forEach(function (line, i) {
|
|
var matchComment = line.match(/^[\s\t]*;/);
|
var matchEmpty = line.match(/^[\s\t]*$/);
|
|
if (matchComment || matchEmpty) return;
|
|
var matchBeginning = line.match('^\\t{' + self.currentIndent + '}(\\w+):(.*){', '');
|
var matchProperty = line.match('^\\t{' + (self.currentIndent) + '}(\\w+):[\\s\\t\\r\\n](.*)');
|
var matchEnd = line.match('^\\t{' + (self.currentIndent - 1) + '}}');
|
|
if (matchBeginning) {
|
|
self.parseNodeBegin(line, matchBeginning);
|
|
} else if (matchProperty) {
|
|
self.parseNodeProperty(line, matchProperty, split[++i]);
|
|
} else if (matchEnd) {
|
|
self.popStack();
|
|
} else if (line.match(/^[^\s\t}]/)) {
|
|
// large arrays are split over multiple lines terminated with a ',' character
|
// if this is encountered the line needs to be joined to the previous line
|
self.parseNodePropertyContinued(line);
|
|
}
|
|
});
|
|
return this.allNodes;
|
|
},
|
|
parseNodeBegin: function (line, property) {
|
|
var nodeName = property[1].trim().replace(/^"/, '').replace(/"$/, '');
|
|
var nodeAttrs = property[2].split(',').map(function (attr) {
|
|
return attr.trim().replace(/^"/, '').replace(/"$/, '');
|
|
});
|
|
var node = { name: nodeName };
|
var attrs = this.parseNodeAttr(nodeAttrs);
|
|
var currentNode = this.getCurrentNode();
|
|
// a top node
|
if (this.currentIndent === 0) {
|
|
this.allNodes.add(nodeName, node);
|
|
} else { // a subnode
|
|
// if the subnode already exists, append it
|
if (nodeName in currentNode) {
|
|
// special case Pose needs PoseNodes as an array
|
if (nodeName === 'PoseNode') {
|
|
currentNode.PoseNode.push(node);
|
|
} else if (currentNode[nodeName].id !== undefined) {
|
|
currentNode[nodeName] = {};
|
currentNode[nodeName][currentNode[nodeName].id] = currentNode[nodeName];
|
|
}
|
|
if (attrs.id !== '') currentNode[nodeName][attrs.id] = node;
|
|
} else if (typeof attrs.id === 'number') {
|
|
currentNode[nodeName] = {};
|
currentNode[nodeName][attrs.id] = node;
|
|
} else if (nodeName !== 'Properties70') {
|
|
if (nodeName === 'PoseNode') currentNode[nodeName] = [node];
|
else currentNode[nodeName] = node;
|
|
}
|
|
}
|
|
if (typeof attrs.id === 'number') node.id = attrs.id;
|
if (attrs.name !== '') node.attrName = attrs.name;
|
if (attrs.type !== '') node.attrType = attrs.type;
|
|
this.pushStack(node);
|
|
},
|
|
parseNodeAttr: function (attrs) {
|
|
var id = attrs[0];
|
|
if (attrs[0] !== '') {
|
|
id = parseInt(attrs[0]);
|
|
if (isNaN(id)) {
|
|
id = attrs[0];
|
|
}
|
|
}
|
|
var name = '', type = '';
|
|
if (attrs.length > 1) {
|
|
name = attrs[1].replace(/^(\w+)::/, '');
|
type = attrs[2];
|
|
}
|
|
return { id: id, name: name, type: type };
|
|
},
|
|
parseNodeProperty: function (line, property, contentLine) {
|
|
var propName = property[1].replace(/^"/, '').replace(/"$/, '').trim();
|
var propValue = property[2].replace(/^"/, '').replace(/"$/, '').trim();
|
|
// for special case: base64 image data follows "Content: ," line
|
// Content: ,
|
// "/9j/4RDaRXhpZgAATU0A..."
|
if (propName === 'Content' && propValue === ',') {
|
|
propValue = contentLine.replace(/"/g, '').replace(/,$/, '').trim();
|
|
}
|
|
var currentNode = this.getCurrentNode();
|
var parentName = currentNode.name;
|
|
if (parentName === 'Properties70') {
|
|
this.parseNodeSpecialProperty(line, propName, propValue);
|
return;
|
|
}
|
|
// Connections
|
if (propName === 'C') {
|
|
var connProps = propValue.split(',').slice(1);
|
var from = parseInt(connProps[0]);
|
var to = parseInt(connProps[1]);
|
|
var rest = propValue.split(',').slice(3);
|
|
rest = rest.map(function (elem) {
|
|
return elem.trim().replace(/^"/, '');
|
|
});
|
|
propName = 'connections';
|
propValue = [from, to];
|
append(propValue, rest);
|
|
if (currentNode[propName] === undefined) {
|
|
currentNode[propName] = [];
|
|
}
|
|
}
|
|
// Node
|
if (propName === 'Node') currentNode.id = propValue;
|
|
// connections
|
if (propName in currentNode && Array.isArray(currentNode[propName])) {
|
|
currentNode[propName].push(propValue);
|
|
} else {
|
|
if (propName !== 'a') currentNode[propName] = propValue;
|
else currentNode.a = propValue;
|
|
}
|
|
this.setCurrentProp(currentNode, propName);
|
|
// convert string to array, unless it ends in ',' in which case more will be added to it
|
if (propName === 'a' && propValue.slice(-1) !== ',') {
|
|
currentNode.a = parseNumberArray(propValue);
|
|
}
|
|
},
|
|
parseNodePropertyContinued: function (line) {
|
|
var currentNode = this.getCurrentNode();
|
|
currentNode.a += line;
|
|
// if the line doesn't end in ',' we have reached the end of the property value
|
// so convert the string to an array
|
if (line.slice(-1) !== ',') {
|
|
currentNode.a = parseNumberArray(currentNode.a);
|
|
}
|
|
},
|
|
// parse "Property70"
|
parseNodeSpecialProperty: function (line, propName, propValue) {
|
|
// split this
|
// P: "Lcl Scaling", "Lcl Scaling", "", "A",1,1,1
|
// into array like below
|
// ["Lcl Scaling", "Lcl Scaling", "", "A", "1,1,1" ]
|
var props = propValue.split('",').map(function (prop) {
|
|
return prop.trim().replace(/^\"/, '').replace(/\s/, '_');
|
|
});
|
|
var innerPropName = props[0];
|
var innerPropType1 = props[1];
|
var innerPropType2 = props[2];
|
var innerPropFlag = props[3];
|
var innerPropValue = props[4];
|
|
// cast values where needed, otherwise leave as strings
|
switch (innerPropType1) {
|
|
case 'int':
|
case 'enum':
|
case 'bool':
|
case 'ULongLong':
|
case 'double':
|
case 'Number':
|
case 'FieldOfView':
|
innerPropValue = parseFloat(innerPropValue);
|
break;
|
|
case 'Color':
|
case 'ColorRGB':
|
case 'Vector3D':
|
case 'Lcl_Translation':
|
case 'Lcl_Rotation':
|
case 'Lcl_Scaling':
|
innerPropValue = parseNumberArray(innerPropValue);
|
break;
|
|
}
|
|
// CAUTION: these props must append to parent's parent
|
this.getPrevNode()[innerPropName] = {
|
|
'type': innerPropType1,
|
'type2': innerPropType2,
|
'flag': innerPropFlag,
|
'value': innerPropValue
|
|
};
|
|
this.setCurrentProp(this.getPrevNode(), innerPropName);
|
|
},
|
|
};
|
|
// Parse an FBX file in Binary format
|
function BinaryParser() { }
|
|
BinaryParser.prototype = {
|
|
constructor: BinaryParser,
|
|
parse: function (buffer) {
|
|
var reader = new BinaryReader(buffer);
|
reader.skip(23); // skip magic 23 bytes
|
|
var version = reader.getUint32();
|
|
console.log('THREE.FBXLoader: FBX binary version: ' + version);
|
|
var allNodes = new FBXTree();
|
|
while (!this.endOfContent(reader)) {
|
|
var node = this.parseNode(reader, version);
|
if (node !== null) allNodes.add(node.name, node);
|
|
}
|
|
return allNodes;
|
|
},
|
|
// Check if reader has reached the end of content.
|
endOfContent: function (reader) {
|
|
// footer size: 160bytes + 16-byte alignment padding
|
// - 16bytes: magic
|
// - padding til 16-byte alignment (at least 1byte?)
|
// (seems like some exporters embed fixed 15 or 16bytes?)
|
// - 4bytes: magic
|
// - 4bytes: version
|
// - 120bytes: zero
|
// - 16bytes: magic
|
if (reader.size() % 16 === 0) {
|
|
return ((reader.getOffset() + 160 + 16) & ~0xf) >= reader.size();
|
|
} else {
|
|
return reader.getOffset() + 160 + 16 >= reader.size();
|
|
}
|
|
},
|
|
// recursively parse nodes until the end of the file is reached
|
parseNode: function (reader, version) {
|
|
var node = {};
|
|
// The first three data sizes depends on version.
|
var endOffset = (version >= 7500) ? reader.getUint64() : reader.getUint32();
|
var numProperties = (version >= 7500) ? reader.getUint64() : reader.getUint32();
|
|
// note: do not remove this even if you get a linter warning as it moves the buffer forward
|
var propertyListLen = (version >= 7500) ? reader.getUint64() : reader.getUint32();
|
|
var nameLen = reader.getUint8();
|
var name = reader.getString(nameLen);
|
|
// Regards this node as NULL-record if endOffset is zero
|
if (endOffset === 0) return null;
|
|
var propertyList = [];
|
|
for (var i = 0; i < numProperties; i++) {
|
|
propertyList.push(this.parseProperty(reader));
|
|
}
|
|
// Regards the first three elements in propertyList as id, attrName, and attrType
|
var id = propertyList.length > 0 ? propertyList[0] : '';
|
var attrName = propertyList.length > 1 ? propertyList[1] : '';
|
var attrType = propertyList.length > 2 ? propertyList[2] : '';
|
|
// check if this node represents just a single property
|
// like (name, 0) set or (name2, [0, 1, 2]) set of {name: 0, name2: [0, 1, 2]}
|
node.singleProperty = (numProperties === 1 && reader.getOffset() === endOffset) ? true : false;
|
|
while (endOffset > reader.getOffset()) {
|
|
var subNode = this.parseNode(reader, version);
|
|
if (subNode !== null) this.parseSubNode(name, node, subNode);
|
|
}
|
|
node.propertyList = propertyList; // raw property list used by parent
|
|
if (typeof id === 'number') node.id = id;
|
if (attrName !== '') node.attrName = attrName;
|
if (attrType !== '') node.attrType = attrType;
|
if (name !== '') node.name = name;
|
|
return node;
|
|
},
|
|
parseSubNode: function (name, node, subNode) {
|
|
// special case: child node is single property
|
if (subNode.singleProperty === true) {
|
|
var value = subNode.propertyList[0];
|
|
if (Array.isArray(value)) {
|
|
node[subNode.name] = subNode;
|
|
subNode.a = value;
|
|
} else {
|
|
node[subNode.name] = value;
|
|
}
|
|
} else if (name === 'Connections' && subNode.name === 'C') {
|
|
var array = [];
|
|
subNode.propertyList.forEach(function (property, i) {
|
|
// first Connection is FBX type (OO, OP, etc.). We'll discard these
|
if (i !== 0) array.push(property);
|
|
});
|
|
if (node.connections === undefined) {
|
|
node.connections = [];
|
|
}
|
|
node.connections.push(array);
|
|
} else if (subNode.name === 'Properties70') {
|
|
var keys = Object.keys(subNode);
|
|
keys.forEach(function (key) {
|
|
node[key] = subNode[key];
|
|
});
|
|
} else if (name === 'Properties70' && subNode.name === 'P') {
|
|
var innerPropName = subNode.propertyList[0];
|
var innerPropType1 = subNode.propertyList[1];
|
var innerPropType2 = subNode.propertyList[2];
|
var innerPropFlag = subNode.propertyList[3];
|
var innerPropValue;
|
|
if (innerPropName.indexOf('Lcl ') === 0) innerPropName = innerPropName.replace('Lcl ', 'Lcl_');
|
if (innerPropType1.indexOf('Lcl ') === 0) innerPropType1 = innerPropType1.replace('Lcl ', 'Lcl_');
|
|
if (innerPropType1 === 'Color' || innerPropType1 === 'ColorRGB' || innerPropType1 === 'Vector' || innerPropType1 === 'Vector3D' || innerPropType1.indexOf('Lcl_') === 0) {
|
|
innerPropValue = [
|
subNode.propertyList[4],
|
subNode.propertyList[5],
|
subNode.propertyList[6]
|
];
|
|
} else {
|
|
innerPropValue = subNode.propertyList[4];
|
|
}
|
|
// this will be copied to parent, see above
|
node[innerPropName] = {
|
|
'type': innerPropType1,
|
'type2': innerPropType2,
|
'flag': innerPropFlag,
|
'value': innerPropValue
|
|
};
|
|
} else if (node[subNode.name] === undefined) {
|
|
if (typeof subNode.id === 'number') {
|
|
node[subNode.name] = {};
|
node[subNode.name][subNode.id] = subNode;
|
|
} else {
|
|
node[subNode.name] = subNode;
|
|
}
|
|
} else {
|
|
if (subNode.name === 'PoseNode') {
|
|
if (!Array.isArray(node[subNode.name])) {
|
|
node[subNode.name] = [node[subNode.name]];
|
|
}
|
|
node[subNode.name].push(subNode);
|
|
} else if (node[subNode.name][subNode.id] === undefined) {
|
|
node[subNode.name][subNode.id] = subNode;
|
|
}
|
|
}
|
|
},
|
|
parseProperty: function (reader) {
|
|
var type = reader.getString(1);
|
|
switch (type) {
|
|
case 'C':
|
return reader.getBoolean();
|
|
case 'D':
|
return reader.getFloat64();
|
|
case 'F':
|
return reader.getFloat32();
|
|
case 'I':
|
return reader.getInt32();
|
|
case 'L':
|
return reader.getInt64();
|
|
case 'R':
|
var length = reader.getUint32();
|
return reader.getArrayBuffer(length);
|
|
case 'S':
|
var length = reader.getUint32();
|
return reader.getString(length);
|
|
case 'Y':
|
return reader.getInt16();
|
|
case 'b':
|
case 'c':
|
case 'd':
|
case 'f':
|
case 'i':
|
case 'l':
|
|
var arrayLength = reader.getUint32();
|
var encoding = reader.getUint32(); // 0: non-compressed, 1: compressed
|
var compressedLength = reader.getUint32();
|
|
if (encoding === 0) {
|
|
switch (type) {
|
|
case 'b':
|
case 'c':
|
return reader.getBooleanArray(arrayLength);
|
|
case 'd':
|
return reader.getFloat64Array(arrayLength);
|
|
case 'f':
|
return reader.getFloat32Array(arrayLength);
|
|
case 'i':
|
return reader.getInt32Array(arrayLength);
|
|
case 'l':
|
return reader.getInt64Array(arrayLength);
|
|
}
|
|
}
|
|
if (typeof Zlib === 'undefined') {
|
|
console.error('THREE.FBXLoader: External library Inflate.min.js required, obtain or import from https://github.com/imaya/zlib.js');
|
|
}
|
|
var inflate = new Zlib.Inflate(new Uint8Array(reader.getArrayBuffer(compressedLength))); // eslint-disable-line no-undef
|
var reader2 = new BinaryReader(inflate.decompress().buffer);
|
|
switch (type) {
|
|
case 'b':
|
case 'c':
|
return reader2.getBooleanArray(arrayLength);
|
|
case 'd':
|
return reader2.getFloat64Array(arrayLength);
|
|
case 'f':
|
return reader2.getFloat32Array(arrayLength);
|
|
case 'i':
|
return reader2.getInt32Array(arrayLength);
|
|
case 'l':
|
return reader2.getInt64Array(arrayLength);
|
|
}
|
|
default:
|
throw new Error('THREE.FBXLoader: Unknown property type ' + type);
|
|
}
|
|
}
|
|
};
|
|
function BinaryReader(buffer, littleEndian) {
|
|
this.dv = new DataView(buffer);
|
this.offset = 0;
|
this.littleEndian = (littleEndian !== undefined) ? littleEndian : true;
|
|
}
|
|
BinaryReader.prototype = {
|
|
constructor: BinaryReader,
|
|
getOffset: function () {
|
|
return this.offset;
|
|
},
|
|
size: function () {
|
|
return this.dv.buffer.byteLength;
|
|
},
|
|
skip: function (length) {
|
|
this.offset += length;
|
|
},
|
|
// seems like true/false representation depends on exporter.
|
// true: 1 or 'Y'(=0x59), false: 0 or 'T'(=0x54)
|
// then sees LSB.
|
getBoolean: function () {
|
|
return (this.getUint8() & 1) === 1;
|
|
},
|
|
getBooleanArray: function (size) {
|
|
var a = [];
|
|
for (var i = 0; i < size; i++) {
|
|
a.push(this.getBoolean());
|
|
}
|
|
return a;
|
|
},
|
|
getUint8: function () {
|
|
var value = this.dv.getUint8(this.offset);
|
this.offset += 1;
|
return value;
|
|
},
|
|
getInt16: function () {
|
|
var value = this.dv.getInt16(this.offset, this.littleEndian);
|
this.offset += 2;
|
return value;
|
|
},
|
|
getInt32: function () {
|
|
var value = this.dv.getInt32(this.offset, this.littleEndian);
|
this.offset += 4;
|
return value;
|
|
},
|
|
getInt32Array: function (size) {
|
|
var a = [];
|
|
for (var i = 0; i < size; i++) {
|
|
a.push(this.getInt32());
|
|
}
|
|
return a;
|
|
},
|
|
getUint32: function () {
|
|
var value = this.dv.getUint32(this.offset, this.littleEndian);
|
this.offset += 4;
|
return value;
|
|
},
|
|
// JavaScript doesn't support 64-bit integer so calculate this here
|
// 1 << 32 will return 1 so using multiply operation instead here.
|
// There's a possibility that this method returns wrong value if the value
|
// is out of the range between Number.MAX_SAFE_INTEGER and Number.MIN_SAFE_INTEGER.
|
// TODO: safely handle 64-bit integer
|
getInt64: function () {
|
|
var low, high;
|
|
if (this.littleEndian) {
|
|
low = this.getUint32();
|
high = this.getUint32();
|
|
} else {
|
|
high = this.getUint32();
|
low = this.getUint32();
|
|
}
|
|
// calculate negative value
|
if (high & 0x80000000) {
|
|
high = ~high & 0xFFFFFFFF;
|
low = ~low & 0xFFFFFFFF;
|
|
if (low === 0xFFFFFFFF) high = (high + 1) & 0xFFFFFFFF;
|
|
low = (low + 1) & 0xFFFFFFFF;
|
|
return -(high * 0x100000000 + low);
|
|
}
|
|
return high * 0x100000000 + low;
|
|
},
|
|
getInt64Array: function (size) {
|
|
var a = [];
|
|
for (var i = 0; i < size; i++) {
|
|
a.push(this.getInt64());
|
|
}
|
|
return a;
|
|
},
|
|
// Note: see getInt64() comment
|
getUint64: function () {
|
|
var low, high;
|
|
if (this.littleEndian) {
|
|
low = this.getUint32();
|
high = this.getUint32();
|
|
} else {
|
|
high = this.getUint32();
|
low = this.getUint32();
|
|
}
|
|
return high * 0x100000000 + low;
|
|
},
|
|
getFloat32: function () {
|
|
var value = this.dv.getFloat32(this.offset, this.littleEndian);
|
this.offset += 4;
|
return value;
|
|
},
|
|
getFloat32Array: function (size) {
|
|
var a = [];
|
|
for (var i = 0; i < size; i++) {
|
|
a.push(this.getFloat32());
|
|
}
|
|
return a;
|
|
},
|
|
getFloat64: function () {
|
|
var value = this.dv.getFloat64(this.offset, this.littleEndian);
|
this.offset += 8;
|
return value;
|
|
},
|
|
getFloat64Array: function (size) {
|
|
var a = [];
|
|
for (var i = 0; i < size; i++) {
|
|
a.push(this.getFloat64());
|
|
}
|
|
return a;
|
|
},
|
|
getArrayBuffer: function (size) {
|
|
var value = this.dv.buffer.slice(this.offset, this.offset + size);
|
this.offset += size;
|
return value;
|
|
},
|
|
getString: function (size) {
|
|
// note: safari 9 doesn't support Uint8Array.indexOf; create intermediate array instead
|
var a = [];
|
|
for (var i = 0; i < size; i++) {
|
|
a[i] = this.getUint8();
|
|
}
|
|
var nullByte = a.indexOf(0);
|
if (nullByte >= 0) a = a.slice(0, nullByte);
|
|
return THREE.LoaderUtils.decodeText(new Uint8Array(a));
|
|
}
|
|
};
|
|
// FBXTree holds a representation of the FBX data, returned by the TextParser ( FBX ASCII format)
|
// and BinaryParser( FBX Binary format)
|
function FBXTree() { }
|
|
FBXTree.prototype = {
|
|
constructor: FBXTree,
|
|
add: function (key, val) {
|
|
this[key] = val;
|
|
},
|
|
};
|
|
// ************** UTILITY FUNCTIONS **************
|
|
function isFbxFormatBinary(buffer) {
|
|
var CORRECT = 'Kaydara FBX Binary \0';
|
|
return buffer.byteLength >= CORRECT.length && CORRECT === convertArrayBufferToString(buffer, 0, CORRECT.length);
|
|
}
|
|
function isFbxFormatASCII(text) {
|
|
var CORRECT = ['K', 'a', 'y', 'd', 'a', 'r', 'a', '\\', 'F', 'B', 'X', '\\', 'B', 'i', 'n', 'a', 'r', 'y', '\\', '\\'];
|
|
var cursor = 0;
|
|
function read(offset) {
|
|
var result = text[offset - 1];
|
text = text.slice(cursor + offset);
|
cursor++;
|
return result;
|
|
}
|
|
for (var i = 0; i < CORRECT.length; ++i) {
|
|
var num = read(1);
|
if (num === CORRECT[i]) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
function getFbxVersion(text) {
|
|
var versionRegExp = /FBXVersion: (\d+)/;
|
var match = text.match(versionRegExp);
|
if (match) {
|
|
var version = parseInt(match[1]);
|
return version;
|
|
}
|
throw new Error('THREE.FBXLoader: Cannot find the version number for the file given.');
|
|
}
|
|
// Converts FBX ticks into real time seconds.
|
function convertFBXTimeToSeconds(time) {
|
|
return time / 46186158000;
|
|
}
|
|
var dataArray = [];
|
|
// extracts the data from the correct position in the FBX array based on indexing type
|
function getData(polygonVertexIndex, polygonIndex, vertexIndex, infoObject) {
|
|
var index;
|
|
switch (infoObject.mappingType) {
|
|
case 'ByPolygonVertex':
|
index = polygonVertexIndex;
|
break;
|
case 'ByPolygon':
|
index = polygonIndex;
|
break;
|
case 'ByVertice':
|
index = vertexIndex;
|
break;
|
case 'AllSame':
|
index = infoObject.indices[0];
|
break;
|
default:
|
console.warn('THREE.FBXLoader: unknown attribute mapping type ' + infoObject.mappingType);
|
|
}
|
|
if (infoObject.referenceType === 'IndexToDirect') index = infoObject.indices[index];
|
|
var from = index * infoObject.dataSize;
|
var to = from + infoObject.dataSize;
|
|
return slice(dataArray, infoObject.buffer, from, to);
|
|
}
|
|
var tempMat = new THREE.Matrix4();
|
var tempEuler = new THREE.Euler();
|
var tempVec = new THREE.Vector3();
|
var translation = new THREE.Vector3();
|
var rotation = new THREE.Matrix4();
|
|
// generate transformation from FBX transform data
|
// ref: https://help.autodesk.com/view/FBX/2017/ENU/?guid=__files_GUID_10CDD63C_79C1_4F2D_BB28_AD2BE65A02ED_htm
|
// transformData = {
|
// eulerOrder: int,
|
// translation: [],
|
// rotationOffset: [],
|
// preRotation
|
// rotation
|
// postRotation
|
// scale
|
// }
|
// all entries are optional
|
function generateTransform(transformData) {
|
|
var transform = new THREE.Matrix4();
|
translation.set(0, 0, 0);
|
rotation.identity();
|
|
var order = (transformData.eulerOrder) ? getEulerOrder(transformData.eulerOrder) : getEulerOrder(0);
|
|
if (transformData.translation) translation.fromArray(transformData.translation);
|
if (transformData.rotationOffset) translation.add(tempVec.fromArray(transformData.rotationOffset));
|
|
if (transformData.rotation) {
|
|
var array = transformData.rotation.map(THREE.Math.degToRad);
|
array.push(order);
|
rotation.makeRotationFromEuler(tempEuler.fromArray(array));
|
|
}
|
|
if (transformData.preRotation) {
|
|
var array = transformData.preRotation.map(THREE.Math.degToRad);
|
array.push(order);
|
tempMat.makeRotationFromEuler(tempEuler.fromArray(array));
|
|
rotation.premultiply(tempMat);
|
|
}
|
|
if (transformData.postRotation) {
|
|
var array = transformData.postRotation.map(THREE.Math.degToRad);
|
array.push(order);
|
tempMat.makeRotationFromEuler(tempEuler.fromArray(array));
|
|
tempMat.getInverse(tempMat);
|
|
rotation.multiply(tempMat);
|
|
}
|
|
if (transformData.scale) transform.scale(tempVec.fromArray(transformData.scale));
|
|
transform.setPosition(translation);
|
transform.multiply(rotation);
|
|
return transform;
|
|
}
|
|
// Returns the three.js intrinsic Euler order corresponding to FBX extrinsic Euler order
|
// ref: http://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_class_fbx_euler_html
|
function getEulerOrder(order) {
|
|
var enums = [
|
'ZYX', // -> XYZ extrinsic
|
'YZX', // -> XZY extrinsic
|
'XZY', // -> YZX extrinsic
|
'ZXY', // -> YXZ extrinsic
|
'YXZ', // -> ZXY extrinsic
|
'XYZ', // -> ZYX extrinsic
|
//'SphericXYZ', // not possible to support
|
];
|
|
if (order === 6) {
|
|
console.warn('THREE.FBXLoader: unsupported Euler Order: Spherical XYZ. Animations and rotations may be incorrect.');
|
return enums[0];
|
|
}
|
|
return enums[order];
|
|
}
|
|
// Parses comma separated list of numbers and returns them an array.
|
// Used internally by the TextParser
|
function parseNumberArray(value) {
|
|
var array = value.split(',').map(function (val) {
|
|
return parseFloat(val);
|
|
});
|
|
return array;
|
|
}
|
|
function convertArrayBufferToString(buffer, from, to) {
|
|
if (from === undefined) from = 0;
|
if (to === undefined) to = buffer.byteLength;
|
|
return THREE.LoaderUtils.decodeText(new Uint8Array(buffer, from, to));
|
|
}
|
|
function append(a, b) {
|
|
for (var i = 0, j = a.length, l = b.length; i < l; i++, j++) {
|
|
a[j] = b[i];
|
|
}
|
|
}
|
|
function slice(a, b, from, to) {
|
|
for (var i = from, j = 0; i < to; i++, j++) {
|
|
a[j] = b[i];
|
|
}
|
|
return a;
|
|
}
|
|
// inject array a2 into array a1 at index
|
function inject(a1, index, a2) {
|
|
return a1.slice(0, index).concat(a2).concat(a1.slice(index));
|
|
}
|
|
return FBXLoader;
|
|
})();
|
