kopia lustrzana https://github.com/backface/turtlestitch
add missing files
Michael Aschauer
rodzic
8066c531fe
commit
f01e50f561
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@ -0,0 +1,12 @@
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# Blender MTL File: 'turtle.obj'
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# Material Count: 1
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newmtl SVGMat
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Ns 96.078431
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Ka 1.000000 1.000000 1.000000
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Kd 0.640000 0.640000 0.640000
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Ks 0.500000 0.500000 0.500000
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Ke 0.000000 0.000000 0.000000
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Ni 1.000000
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d 0.7
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illum 2
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@ -0,0 +1,568 @@
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/**
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* Loads a Wavefront .mtl file specifying materials
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*
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* @author angelxuanchang
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*/
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THREE.MTLLoader = function ( manager ) {
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this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
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};
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THREE.MTLLoader.prototype = {
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constructor: THREE.MTLLoader,
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/**
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* Loads and parses a MTL asset from a URL.
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*
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* @param {String} url - URL to the MTL file.
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* @param {Function} [onLoad] - Callback invoked with the loaded object.
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* @param {Function} [onProgress] - Callback for download progress.
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* @param {Function} [onError] - Callback for download errors.
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*
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* @see setPath setResourcePath
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*
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* @note In order for relative texture references to resolve correctly
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* you must call setResourcePath() explicitly prior to load.
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*/
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load: function ( url, onLoad, onProgress, onError ) {
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var scope = this;
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var path = ( this.path === undefined ) ? THREE.LoaderUtils.extractUrlBase( url ) : this.path;
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var loader = new THREE.FileLoader( this.manager );
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loader.setPath( this.path );
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loader.load( url, function ( text ) {
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onLoad( scope.parse( text, path ) );
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}, onProgress, onError );
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},
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/**
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* Set base path for resolving references.
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* If set this path will be prepended to each loaded and found reference.
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*
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* @see setResourcePath
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* @param {String} path
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* @return {THREE.MTLLoader}
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*
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* @example
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* mtlLoader.setPath( 'assets/obj/' );
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* mtlLoader.load( 'my.mtl', ... );
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*/
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setPath: function ( path ) {
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this.path = path;
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return this;
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},
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/**
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* Set base path for additional resources like textures.
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*
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* @see setPath
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* @param {String} path
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* @return {THREE.MTLLoader}
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*
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* @example
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* mtlLoader.setPath( 'assets/obj/' );
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* mtlLoader.setResourcePath( 'assets/textures/' );
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* mtlLoader.load( 'my.mtl', ... );
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*/
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setResourcePath: function ( path ) {
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this.resourcePath = path;
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return this;
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},
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setTexturePath: function ( path ) {
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console.warn( 'THREE.MTLLoader: .setTexturePath() has been renamed to .setResourcePath().' );
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return this.setResourcePath( path );
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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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setMaterialOptions: function ( value ) {
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this.materialOptions = value;
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return this;
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},
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/**
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* Parses a MTL file.
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*
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* @param {String} text - Content of MTL file
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* @return {THREE.MTLLoader.MaterialCreator}
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*
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* @see setPath setResourcePath
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*
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* @note In order for relative texture references to resolve correctly
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* you must call setResourcePath() explicitly prior to parse.
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*/
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parse: function ( text, path ) {
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var lines = text.split( '\n' );
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var info = {};
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var delimiter_pattern = /\s+/;
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var materialsInfo = {};
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for ( var i = 0; i < lines.length; i ++ ) {
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var line = lines[ i ];
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line = line.trim();
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if ( line.length === 0 || line.charAt( 0 ) === '#' ) {
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// Blank line or comment ignore
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continue;
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}
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var pos = line.indexOf( ' ' );
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var key = ( pos >= 0 ) ? line.substring( 0, pos ) : line;
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key = key.toLowerCase();
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var value = ( pos >= 0 ) ? line.substring( pos + 1 ) : '';
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value = value.trim();
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if ( key === 'newmtl' ) {
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// New material
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info = { name: value };
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materialsInfo[ value ] = info;
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} else {
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if ( key === 'ka' || key === 'kd' || key === 'ks' ) {
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var ss = value.split( delimiter_pattern, 3 );
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info[ key ] = [ parseFloat( ss[ 0 ] ), parseFloat( ss[ 1 ] ), parseFloat( ss[ 2 ] ) ];
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} else {
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info[ key ] = value;
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}
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}
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}
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var materialCreator = new THREE.MTLLoader.MaterialCreator( this.resourcePath || path, this.materialOptions );
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materialCreator.setCrossOrigin( this.crossOrigin );
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materialCreator.setManager( this.manager );
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materialCreator.setMaterials( materialsInfo );
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return materialCreator;
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}
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};
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/**
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* Create a new THREE-MTLLoader.MaterialCreator
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* @param baseUrl - Url relative to which textures are loaded
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* @param options - Set of options on how to construct the materials
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* side: Which side to apply the material
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* THREE.FrontSide (default), THREE.BackSide, THREE.DoubleSide
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* wrap: What type of wrapping to apply for textures
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* THREE.RepeatWrapping (default), THREE.ClampToEdgeWrapping, THREE.MirroredRepeatWrapping
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* normalizeRGB: RGBs need to be normalized to 0-1 from 0-255
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* Default: false, assumed to be already normalized
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* ignoreZeroRGBs: Ignore values of RGBs (Ka,Kd,Ks) that are all 0's
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* Default: false
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* @constructor
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*/
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THREE.MTLLoader.MaterialCreator = function ( baseUrl, options ) {
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this.baseUrl = baseUrl || '';
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this.options = options;
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this.materialsInfo = {};
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this.materials = {};
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this.materialsArray = [];
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this.nameLookup = {};
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this.side = ( this.options && this.options.side ) ? this.options.side : THREE.FrontSide;
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this.wrap = ( this.options && this.options.wrap ) ? this.options.wrap : THREE.RepeatWrapping;
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};
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THREE.MTLLoader.MaterialCreator.prototype = {
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constructor: THREE.MTLLoader.MaterialCreator,
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crossOrigin: 'anonymous',
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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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setManager: function ( value ) {
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this.manager = value;
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},
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setMaterials: function ( materialsInfo ) {
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this.materialsInfo = this.convert( materialsInfo );
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this.materials = {};
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this.materialsArray = [];
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this.nameLookup = {};
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},
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convert: function ( materialsInfo ) {
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if ( ! this.options ) return materialsInfo;
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var converted = {};
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for ( var mn in materialsInfo ) {
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// Convert materials info into normalized form based on options
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var mat = materialsInfo[ mn ];
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var covmat = {};
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converted[ mn ] = covmat;
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for ( var prop in mat ) {
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var save = true;
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var value = mat[ prop ];
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var lprop = prop.toLowerCase();
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switch ( lprop ) {
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case 'kd':
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case 'ka':
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case 'ks':
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// Diffuse color (color under white light) using RGB values
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if ( this.options && this.options.normalizeRGB ) {
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value = [ value[ 0 ] / 255, value[ 1 ] / 255, value[ 2 ] / 255 ];
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}
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if ( this.options && this.options.ignoreZeroRGBs ) {
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if ( value[ 0 ] === 0 && value[ 1 ] === 0 && value[ 2 ] === 0 ) {
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// ignore
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save = false;
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}
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}
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break;
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default:
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break;
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}
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if ( save ) {
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covmat[ lprop ] = value;
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}
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}
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}
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return converted;
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},
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preload: function () {
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for ( var mn in this.materialsInfo ) {
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this.create( mn );
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}
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},
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getIndex: function ( materialName ) {
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return this.nameLookup[ materialName ];
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},
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getAsArray: function () {
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var index = 0;
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for ( var mn in this.materialsInfo ) {
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this.materialsArray[ index ] = this.create( mn );
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this.nameLookup[ mn ] = index;
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index ++;
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}
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return this.materialsArray;
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},
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create: function ( materialName ) {
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if ( this.materials[ materialName ] === undefined ) {
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this.createMaterial_( materialName );
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}
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return this.materials[ materialName ];
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},
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createMaterial_: function ( materialName ) {
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// Create material
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var scope = this;
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var mat = this.materialsInfo[ materialName ];
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var params = {
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name: materialName,
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side: this.side
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};
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function resolveURL( baseUrl, url ) {
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if ( typeof url !== 'string' || url === '' )
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return '';
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// Absolute URL
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if ( /^https?:\/\//i.test( url ) ) return url;
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return baseUrl + url;
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}
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function setMapForType( mapType, value ) {
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if ( params[ mapType ] ) return; // Keep the first encountered texture
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var texParams = scope.getTextureParams( value, params );
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var map = scope.loadTexture( resolveURL( scope.baseUrl, texParams.url ) );
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map.repeat.copy( texParams.scale );
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map.offset.copy( texParams.offset );
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map.wrapS = scope.wrap;
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map.wrapT = scope.wrap;
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params[ mapType ] = map;
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}
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for ( var prop in mat ) {
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var value = mat[ prop ];
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var n;
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if ( value === '' ) continue;
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switch ( prop.toLowerCase() ) {
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// Ns is material specular exponent
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case 'kd':
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// Diffuse color (color under white light) using RGB values
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params.color = new THREE.Color().fromArray( value );
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break;
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case 'ks':
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// Specular color (color when light is reflected from shiny surface) using RGB values
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params.specular = new THREE.Color().fromArray( value );
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break;
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case 'map_kd':
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// Diffuse texture map
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setMapForType( "map", value );
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break;
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case 'map_ks':
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// Specular map
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setMapForType( "specularMap", value );
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break;
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case 'norm':
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setMapForType( "normalMap", value );
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break;
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case 'map_bump':
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case 'bump':
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// Bump texture map
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setMapForType( "bumpMap", value );
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break;
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case 'map_d':
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// Alpha map
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setMapForType( "alphaMap", value );
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params.transparent = true;
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break;
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case 'ns':
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// The specular exponent (defines the focus of the specular highlight)
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// A high exponent results in a tight, concentrated highlight. Ns values normally range from 0 to 1000.
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params.shininess = parseFloat( value );
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break;
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case 'd':
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n = parseFloat( value );
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if ( n < 1 ) {
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params.opacity = n;
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params.transparent = true;
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}
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break;
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case 'tr':
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n = parseFloat( value );
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if ( this.options && this.options.invertTrProperty ) n = 1 - n;
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if ( n > 0 ) {
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params.opacity = 1 - n;
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params.transparent = true;
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}
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break;
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default:
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break;
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}
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}
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this.materials[ materialName ] = new THREE.MeshPhongMaterial( params );
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return this.materials[ materialName ];
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},
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getTextureParams: function ( value, matParams ) {
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var texParams = {
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scale: new THREE.Vector2( 1, 1 ),
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offset: new THREE.Vector2( 0, 0 )
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};
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var items = value.split( /\s+/ );
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var pos;
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pos = items.indexOf( '-bm' );
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if ( pos >= 0 ) {
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matParams.bumpScale = parseFloat( items[ pos + 1 ] );
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items.splice( pos, 2 );
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}
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pos = items.indexOf( '-s' );
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if ( pos >= 0 ) {
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texParams.scale.set( parseFloat( items[ pos + 1 ] ), parseFloat( items[ pos + 2 ] ) );
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items.splice( pos, 4 ); // we expect 3 parameters here!
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}
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pos = items.indexOf( '-o' );
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if ( pos >= 0 ) {
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texParams.offset.set( parseFloat( items[ pos + 1 ] ), parseFloat( items[ pos + 2 ] ) );
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items.splice( pos, 4 ); // we expect 3 parameters here!
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}
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texParams.url = items.join( ' ' ).trim();
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return texParams;
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},
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loadTexture: function ( url, mapping, onLoad, onProgress, onError ) {
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var texture;
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var loader = THREE.Loader.Handlers.get( url );
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var manager = ( this.manager !== undefined ) ? this.manager : THREE.DefaultLoadingManager;
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if ( loader === null ) {
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loader = new THREE.TextureLoader( manager );
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}
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if ( loader.setCrossOrigin ) loader.setCrossOrigin( this.crossOrigin );
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texture = loader.load( url, onLoad, onProgress, onError );
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if ( mapping !== undefined ) texture.mapping = mapping;
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return texture;
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}
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};
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@ -0,0 +1,793 @@
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/**
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* @author mrdoob / http://mrdoob.com/
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*/
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||||
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THREE.OBJLoader = ( function () {
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// o object_name | g group_name
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var object_pattern = /^[og]\s*(.+)?/;
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// mtllib file_reference
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var material_library_pattern = /^mtllib /;
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// usemtl material_name
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var material_use_pattern = /^usemtl /;
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function ParserState() {
|
||||
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var state = {
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objects: [],
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object: {},
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|
||||
vertices: [],
|
||||
normals: [],
|
||||
colors: [],
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uvs: [],
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||||
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materialLibraries: [],
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startObject: function ( name, fromDeclaration ) {
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|
||||
// If the current object (initial from reset) is not from a g/o declaration in the parsed
|
||||
// file. We need to use it for the first parsed g/o to keep things in sync.
|
||||
if ( this.object && this.object.fromDeclaration === false ) {
|
||||
|
||||
this.object.name = name;
|
||||
this.object.fromDeclaration = ( fromDeclaration !== false );
|
||||
return;
|
||||
|
||||
}
|
||||
|
||||
var previousMaterial = ( this.object && typeof this.object.currentMaterial === 'function' ? this.object.currentMaterial() : undefined );
|
||||
|
||||
if ( this.object && typeof this.object._finalize === 'function' ) {
|
||||
|
||||
this.object._finalize( true );
|
||||
|
||||
}
|
||||
|
||||
this.object = {
|
||||
name: name || '',
|
||||
fromDeclaration: ( fromDeclaration !== false ),
|
||||
|
||||
geometry: {
|
||||
vertices: [],
|
||||
normals: [],
|
||||
colors: [],
|
||||
uvs: []
|
||||
},
|
||||
materials: [],
|
||||
smooth: true,
|
||||
|
||||
startMaterial: function ( name, libraries ) {
|
||||
|
||||
var previous = this._finalize( false );
|
||||
|
||||
// New usemtl declaration overwrites an inherited material, except if faces were declared
|
||||
// after the material, then it must be preserved for proper MultiMaterial continuation.
|
||||
if ( previous && ( previous.inherited || previous.groupCount <= 0 ) ) {
|
||||
|
||||
this.materials.splice( previous.index, 1 );
|
||||
|
||||
}
|
||||
|
||||
var material = {
|
||||
index: this.materials.length,
|
||||
name: name || '',
|
||||
mtllib: ( Array.isArray( libraries ) && libraries.length > 0 ? libraries[ libraries.length - 1 ] : '' ),
|
||||
smooth: ( previous !== undefined ? previous.smooth : this.smooth ),
|
||||
groupStart: ( previous !== undefined ? previous.groupEnd : 0 ),
|
||||
groupEnd: - 1,
|
||||
groupCount: - 1,
|
||||
inherited: false,
|
||||
|
||||
clone: function ( index ) {
|
||||
|
||||
var cloned = {
|
||||
index: ( typeof index === 'number' ? index : this.index ),
|
||||
name: this.name,
|
||||
mtllib: this.mtllib,
|
||||
smooth: this.smooth,
|
||||
groupStart: 0,
|
||||
groupEnd: - 1,
|
||||
groupCount: - 1,
|
||||
inherited: false
|
||||
};
|
||||
cloned.clone = this.clone.bind( cloned );
|
||||
return cloned;
|
||||
|
||||
}
|
||||
};
|
||||
|
||||
this.materials.push( material );
|
||||
|
||||
return material;
|
||||
|
||||
},
|
||||
|
||||
currentMaterial: function () {
|
||||
|
||||
if ( this.materials.length > 0 ) {
|
||||
|
||||
return this.materials[ this.materials.length - 1 ];
|
||||
|
||||
}
|
||||
|
||||
return undefined;
|
||||
|
||||
},
|
||||
|
||||
_finalize: function ( end ) {
|
||||
|
||||
var lastMultiMaterial = this.currentMaterial();
|
||||
if ( lastMultiMaterial && lastMultiMaterial.groupEnd === - 1 ) {
|
||||
|
||||
lastMultiMaterial.groupEnd = this.geometry.vertices.length / 3;
|
||||
lastMultiMaterial.groupCount = lastMultiMaterial.groupEnd - lastMultiMaterial.groupStart;
|
||||
lastMultiMaterial.inherited = false;
|
||||
|
||||
}
|
||||
|
||||
// Ignore objects tail materials if no face declarations followed them before a new o/g started.
|
||||
if ( end && this.materials.length > 1 ) {
|
||||
|
||||
for ( var mi = this.materials.length - 1; mi >= 0; mi -- ) {
|
||||
|
||||
if ( this.materials[ mi ].groupCount <= 0 ) {
|
||||
|
||||
this.materials.splice( mi, 1 );
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// Guarantee at least one empty material, this makes the creation later more straight forward.
|
||||
if ( end && this.materials.length === 0 ) {
|
||||
|
||||
this.materials.push( {
|
||||
name: '',
|
||||
smooth: this.smooth
|
||||
} );
|
||||
|
||||
}
|
||||
|
||||
return lastMultiMaterial;
|
||||
|
||||
}
|
||||
};
|
||||
|
||||
// Inherit previous objects material.
|
||||
// Spec tells us that a declared material must be set to all objects until a new material is declared.
|
||||
// If a usemtl declaration is encountered while this new object is being parsed, it will
|
||||
// overwrite the inherited material. Exception being that there was already face declarations
|
||||
// to the inherited material, then it will be preserved for proper MultiMaterial continuation.
|
||||
|
||||
if ( previousMaterial && previousMaterial.name && typeof previousMaterial.clone === 'function' ) {
|
||||
|
||||
var declared = previousMaterial.clone( 0 );
|
||||
declared.inherited = true;
|
||||
this.object.materials.push( declared );
|
||||
|
||||
}
|
||||
|
||||
this.objects.push( this.object );
|
||||
|
||||
},
|
||||
|
||||
finalize: function () {
|
||||
|
||||
if ( this.object && typeof this.object._finalize === 'function' ) {
|
||||
|
||||
this.object._finalize( true );
|
||||
|
||||
}
|
||||
|
||||
},
|
||||
|
||||
parseVertexIndex: function ( value, len ) {
|
||||
|
||||
var index = parseInt( value, 10 );
|
||||
return ( index >= 0 ? index - 1 : index + len / 3 ) * 3;
|
||||
|
||||
},
|
||||
|
||||
parseNormalIndex: function ( value, len ) {
|
||||
|
||||
var index = parseInt( value, 10 );
|
||||
return ( index >= 0 ? index - 1 : index + len / 3 ) * 3;
|
||||
|
||||
},
|
||||
|
||||
parseUVIndex: function ( value, len ) {
|
||||
|
||||
var index = parseInt( value, 10 );
|
||||
return ( index >= 0 ? index - 1 : index + len / 2 ) * 2;
|
||||
|
||||
},
|
||||
|
||||
addVertex: function ( a, b, c ) {
|
||||
|
||||
var src = this.vertices;
|
||||
var dst = this.object.geometry.vertices;
|
||||
|
||||
dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
|
||||
dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] );
|
||||
dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] );
|
||||
|
||||
},
|
||||
|
||||
addVertexPoint: function ( a ) {
|
||||
|
||||
var src = this.vertices;
|
||||
var dst = this.object.geometry.vertices;
|
||||
|
||||
dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
|
||||
|
||||
},
|
||||
|
||||
addVertexLine: function ( a ) {
|
||||
|
||||
var src = this.vertices;
|
||||
var dst = this.object.geometry.vertices;
|
||||
|
||||
dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
|
||||
|
||||
},
|
||||
|
||||
addNormal: function ( a, b, c ) {
|
||||
|
||||
var src = this.normals;
|
||||
var dst = this.object.geometry.normals;
|
||||
|
||||
dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
|
||||
dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] );
|
||||
dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] );
|
||||
|
||||
},
|
||||
|
||||
addColor: function ( a, b, c ) {
|
||||
|
||||
var src = this.colors;
|
||||
var dst = this.object.geometry.colors;
|
||||
|
||||
dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
|
||||
dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] );
|
||||
dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] );
|
||||
|
||||
},
|
||||
|
||||
addUV: function ( a, b, c ) {
|
||||
|
||||
var src = this.uvs;
|
||||
var dst = this.object.geometry.uvs;
|
||||
|
||||
dst.push( src[ a + 0 ], src[ a + 1 ] );
|
||||
dst.push( src[ b + 0 ], src[ b + 1 ] );
|
||||
dst.push( src[ c + 0 ], src[ c + 1 ] );
|
||||
|
||||
},
|
||||
|
||||
addUVLine: function ( a ) {
|
||||
|
||||
var src = this.uvs;
|
||||
var dst = this.object.geometry.uvs;
|
||||
|
||||
dst.push( src[ a + 0 ], src[ a + 1 ] );
|
||||
|
||||
},
|
||||
|
||||
addFace: function ( a, b, c, ua, ub, uc, na, nb, nc ) {
|
||||
|
||||
var vLen = this.vertices.length;
|
||||
|
||||
var ia = this.parseVertexIndex( a, vLen );
|
||||
var ib = this.parseVertexIndex( b, vLen );
|
||||
var ic = this.parseVertexIndex( c, vLen );
|
||||
|
||||
this.addVertex( ia, ib, ic );
|
||||
|
||||
if ( ua !== undefined && ua !== '' ) {
|
||||
|
||||
var uvLen = this.uvs.length;
|
||||
ia = this.parseUVIndex( ua, uvLen );
|
||||
ib = this.parseUVIndex( ub, uvLen );
|
||||
ic = this.parseUVIndex( uc, uvLen );
|
||||
this.addUV( ia, ib, ic );
|
||||
|
||||
}
|
||||
|
||||
if ( na !== undefined && na !== '' ) {
|
||||
|
||||
// Normals are many times the same. If so, skip function call and parseInt.
|
||||
var nLen = this.normals.length;
|
||||
ia = this.parseNormalIndex( na, nLen );
|
||||
|
||||
ib = na === nb ? ia : this.parseNormalIndex( nb, nLen );
|
||||
ic = na === nc ? ia : this.parseNormalIndex( nc, nLen );
|
||||
|
||||
this.addNormal( ia, ib, ic );
|
||||
|
||||
}
|
||||
|
||||
if ( this.colors.length > 0 ) {
|
||||
|
||||
this.addColor( ia, ib, ic );
|
||||
|
||||
}
|
||||
|
||||
},
|
||||
|
||||
addPointGeometry: function ( vertices ) {
|
||||
|
||||
this.object.geometry.type = 'Points';
|
||||
|
||||
var vLen = this.vertices.length;
|
||||
|
||||
for ( var vi = 0, l = vertices.length; vi < l; vi ++ ) {
|
||||
|
||||
this.addVertexPoint( this.parseVertexIndex( vertices[ vi ], vLen ) );
|
||||
|
||||
}
|
||||
|
||||
},
|
||||
|
||||
addLineGeometry: function ( vertices, uvs ) {
|
||||
|
||||
this.object.geometry.type = 'Line';
|
||||
|
||||
var vLen = this.vertices.length;
|
||||
var uvLen = this.uvs.length;
|
||||
|
||||
for ( var vi = 0, l = vertices.length; vi < l; vi ++ ) {
|
||||
|
||||
this.addVertexLine( this.parseVertexIndex( vertices[ vi ], vLen ) );
|
||||
|
||||
}
|
||||
|
||||
for ( var uvi = 0, l = uvs.length; uvi < l; uvi ++ ) {
|
||||
|
||||
this.addUVLine( this.parseUVIndex( uvs[ uvi ], uvLen ) );
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
state.startObject( '', false );
|
||||
|
||||
return state;
|
||||
|
||||
}
|
||||
|
||||
//
|
||||
|
||||
function OBJLoader( manager ) {
|
||||
|
||||
this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
|
||||
|
||||
this.materials = null;
|
||||
|
||||
}
|
||||
|
||||
OBJLoader.prototype = {
|
||||
|
||||
constructor: OBJLoader,
|
||||
|
||||
load: function ( url, onLoad, onProgress, onError ) {
|
||||
|
||||
var scope = this;
|
||||
|
||||
var loader = new THREE.FileLoader( scope.manager );
|
||||
loader.setPath( this.path );
|
||||
loader.load( url, function ( text ) {
|
||||
|
||||
onLoad( scope.parse( text ) );
|
||||
|
||||
}, onProgress, onError );
|
||||
|
||||
},
|
||||
|
||||
setPath: function ( value ) {
|
||||
|
||||
this.path = value;
|
||||
|
||||
return this;
|
||||
|
||||
},
|
||||
|
||||
setMaterials: function ( materials ) {
|
||||
|
||||
this.materials = materials;
|
||||
|
||||
return this;
|
||||
|
||||
},
|
||||
|
||||
parse: function ( text ) {
|
||||
|
||||
console.time( 'OBJLoader' );
|
||||
|
||||
var state = new ParserState();
|
||||
|
||||
if ( text.indexOf( '\r\n' ) !== - 1 ) {
|
||||
|
||||
// This is faster than String.split with regex that splits on both
|
||||
text = text.replace( /\r\n/g, '\n' );
|
||||
|
||||
}
|
||||
|
||||
if ( text.indexOf( '\\\n' ) !== - 1 ) {
|
||||
|
||||
// join lines separated by a line continuation character (\)
|
||||
text = text.replace( /\\\n/g, '' );
|
||||
|
||||
}
|
||||
|
||||
var lines = text.split( '\n' );
|
||||
var line = '', lineFirstChar = '';
|
||||
var lineLength = 0;
|
||||
var result = [];
|
||||
|
||||
// Faster to just trim left side of the line. Use if available.
|
||||
var trimLeft = ( typeof ''.trimLeft === 'function' );
|
||||
|
||||
for ( var i = 0, l = lines.length; i < l; i ++ ) {
|
||||
|
||||
line = lines[ i ];
|
||||
|
||||
line = trimLeft ? line.trimLeft() : line.trim();
|
||||
|
||||
lineLength = line.length;
|
||||
|
||||
if ( lineLength === 0 ) continue;
|
||||
|
||||
lineFirstChar = line.charAt( 0 );
|
||||
|
||||
// @todo invoke passed in handler if any
|
||||
if ( lineFirstChar === '#' ) continue;
|
||||
|
||||
if ( lineFirstChar === 'v' ) {
|
||||
|
||||
var data = line.split( /\s+/ );
|
||||
|
||||
switch ( data[ 0 ] ) {
|
||||
|
||||
case 'v':
|
||||
state.vertices.push(
|
||||
parseFloat( data[ 1 ] ),
|
||||
parseFloat( data[ 2 ] ),
|
||||
parseFloat( data[ 3 ] )
|
||||
);
|
||||
if ( data.length === 8 ) {
|
||||
|
||||
state.colors.push(
|
||||
parseFloat( data[ 4 ] ),
|
||||
parseFloat( data[ 5 ] ),
|
||||
parseFloat( data[ 6 ] )
|
||||
|
||||
);
|
||||
|
||||
}
|
||||
break;
|
||||
case 'vn':
|
||||
state.normals.push(
|
||||
parseFloat( data[ 1 ] ),
|
||||
parseFloat( data[ 2 ] ),
|
||||
parseFloat( data[ 3 ] )
|
||||
);
|
||||
break;
|
||||
case 'vt':
|
||||
state.uvs.push(
|
||||
parseFloat( data[ 1 ] ),
|
||||
parseFloat( data[ 2 ] )
|
||||
);
|
||||
break;
|
||||
|
||||
}
|
||||
|
||||
} else if ( lineFirstChar === 'f' ) {
|
||||
|
||||
var lineData = line.substr( 1 ).trim();
|
||||
var vertexData = lineData.split( /\s+/ );
|
||||
var faceVertices = [];
|
||||
|
||||
// Parse the face vertex data into an easy to work with format
|
||||
|
||||
for ( var j = 0, jl = vertexData.length; j < jl; j ++ ) {
|
||||
|
||||
var vertex = vertexData[ j ];
|
||||
|
||||
if ( vertex.length > 0 ) {
|
||||
|
||||
var vertexParts = vertex.split( '/' );
|
||||
faceVertices.push( vertexParts );
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// Draw an edge between the first vertex and all subsequent vertices to form an n-gon
|
||||
|
||||
var v1 = faceVertices[ 0 ];
|
||||
|
||||
for ( var j = 1, jl = faceVertices.length - 1; j < jl; j ++ ) {
|
||||
|
||||
var v2 = faceVertices[ j ];
|
||||
var v3 = faceVertices[ j + 1 ];
|
||||
|
||||
state.addFace(
|
||||
v1[ 0 ], v2[ 0 ], v3[ 0 ],
|
||||
v1[ 1 ], v2[ 1 ], v3[ 1 ],
|
||||
v1[ 2 ], v2[ 2 ], v3[ 2 ]
|
||||
);
|
||||
|
||||
}
|
||||
|
||||
} else if ( lineFirstChar === 'l' ) {
|
||||
|
||||
var lineParts = line.substring( 1 ).trim().split( " " );
|
||||
var lineVertices = [], lineUVs = [];
|
||||
|
||||
if ( line.indexOf( "/" ) === - 1 ) {
|
||||
|
||||
lineVertices = lineParts;
|
||||
|
||||
} else {
|
||||
|
||||
for ( var li = 0, llen = lineParts.length; li < llen; li ++ ) {
|
||||
|
||||
var parts = lineParts[ li ].split( "/" );
|
||||
|
||||
if ( parts[ 0 ] !== "" ) lineVertices.push( parts[ 0 ] );
|
||||
if ( parts[ 1 ] !== "" ) lineUVs.push( parts[ 1 ] );
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
state.addLineGeometry( lineVertices, lineUVs );
|
||||
|
||||
} else if ( lineFirstChar === 'p' ) {
|
||||
|
||||
var lineData = line.substr( 1 ).trim();
|
||||
var pointData = lineData.split( " " );
|
||||
|
||||
state.addPointGeometry( pointData );
|
||||
|
||||
} else if ( ( result = object_pattern.exec( line ) ) !== null ) {
|
||||
|
||||
// o object_name
|
||||
// or
|
||||
// g group_name
|
||||
|
||||
// WORKAROUND: https://bugs.chromium.org/p/v8/issues/detail?id=2869
|
||||
// var name = result[ 0 ].substr( 1 ).trim();
|
||||
var name = ( " " + result[ 0 ].substr( 1 ).trim() ).substr( 1 );
|
||||
|
||||
state.startObject( name );
|
||||
|
||||
} else if ( material_use_pattern.test( line ) ) {
|
||||
|
||||
// material
|
||||
|
||||
state.object.startMaterial( line.substring( 7 ).trim(), state.materialLibraries );
|
||||
|
||||
} else if ( material_library_pattern.test( line ) ) {
|
||||
|
||||
// mtl file
|
||||
|
||||
state.materialLibraries.push( line.substring( 7 ).trim() );
|
||||
|
||||
} else if ( lineFirstChar === 's' ) {
|
||||
|
||||
result = line.split( ' ' );
|
||||
|
||||
// smooth shading
|
||||
|
||||
// @todo Handle files that have varying smooth values for a set of faces inside one geometry,
|
||||
// but does not define a usemtl for each face set.
|
||||
// This should be detected and a dummy material created (later MultiMaterial and geometry groups).
|
||||
// This requires some care to not create extra material on each smooth value for "normal" obj files.
|
||||
// where explicit usemtl defines geometry groups.
|
||||
// Example asset: examples/models/obj/cerberus/Cerberus.obj
|
||||
|
||||
/*
|
||||
* http://paulbourke.net/dataformats/obj/
|
||||
* or
|
||||
* http://www.cs.utah.edu/~boulos/cs3505/obj_spec.pdf
|
||||
*
|
||||
* From chapter "Grouping" Syntax explanation "s group_number":
|
||||
* "group_number is the smoothing group number. To turn off smoothing groups, use a value of 0 or off.
|
||||
* Polygonal elements use group numbers to put elements in different smoothing groups. For free-form
|
||||
* surfaces, smoothing groups are either turned on or off; there is no difference between values greater
|
||||
* than 0."
|
||||
*/
|
||||
if ( result.length > 1 ) {
|
||||
|
||||
var value = result[ 1 ].trim().toLowerCase();
|
||||
state.object.smooth = ( value !== '0' && value !== 'off' );
|
||||
|
||||
} else {
|
||||
|
||||
// ZBrush can produce "s" lines #11707
|
||||
state.object.smooth = true;
|
||||
|
||||
}
|
||||
var material = state.object.currentMaterial();
|
||||
if ( material ) material.smooth = state.object.smooth;
|
||||
|
||||
} else {
|
||||
|
||||
// Handle null terminated files without exception
|
||||
if ( line === '\0' ) continue;
|
||||
|
||||
throw new Error( 'THREE.OBJLoader: Unexpected line: "' + line + '"' );
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
state.finalize();
|
||||
|
||||
var container = new THREE.Group();
|
||||
container.materialLibraries = [].concat( state.materialLibraries );
|
||||
|
||||
for ( var i = 0, l = state.objects.length; i < l; i ++ ) {
|
||||
|
||||
var object = state.objects[ i ];
|
||||
var geometry = object.geometry;
|
||||
var materials = object.materials;
|
||||
var isLine = ( geometry.type === 'Line' );
|
||||
var isPoints = ( geometry.type === 'Points' );
|
||||
var hasVertexColors = false;
|
||||
|
||||
// Skip o/g line declarations that did not follow with any faces
|
||||
if ( geometry.vertices.length === 0 ) continue;
|
||||
|
||||
var buffergeometry = new THREE.BufferGeometry();
|
||||
|
||||
buffergeometry.addAttribute( 'position', new THREE.Float32BufferAttribute( geometry.vertices, 3 ) );
|
||||
|
||||
if ( geometry.normals.length > 0 ) {
|
||||
|
||||
buffergeometry.addAttribute( 'normal', new THREE.Float32BufferAttribute( geometry.normals, 3 ) );
|
||||
|
||||
} else {
|
||||
|
||||
buffergeometry.computeVertexNormals();
|
||||
|
||||
}
|
||||
|
||||
if ( geometry.colors.length > 0 ) {
|
||||
|
||||
hasVertexColors = true;
|
||||
buffergeometry.addAttribute( 'color', new THREE.Float32BufferAttribute( geometry.colors, 3 ) );
|
||||
|
||||
}
|
||||
|
||||
if ( geometry.uvs.length > 0 ) {
|
||||
|
||||
buffergeometry.addAttribute( 'uv', new THREE.Float32BufferAttribute( geometry.uvs, 2 ) );
|
||||
|
||||
}
|
||||
|
||||
// Create materials
|
||||
|
||||
var createdMaterials = [];
|
||||
|
||||
for ( var mi = 0, miLen = materials.length; mi < miLen; mi ++ ) {
|
||||
|
||||
var sourceMaterial = materials[ mi ];
|
||||
var material = undefined;
|
||||
|
||||
if ( this.materials !== null ) {
|
||||
|
||||
material = this.materials.create( sourceMaterial.name );
|
||||
|
||||
// mtl etc. loaders probably can't create line materials correctly, copy properties to a line material.
|
||||
if ( isLine && material && ! ( material instanceof THREE.LineBasicMaterial ) ) {
|
||||
|
||||
var materialLine = new THREE.LineBasicMaterial();
|
||||
materialLine.copy( material );
|
||||
materialLine.lights = false; // TOFIX
|
||||
material = materialLine;
|
||||
|
||||
} else if ( isPoints && material && ! ( material instanceof THREE.PointsMaterial ) ) {
|
||||
|
||||
var materialPoints = new THREE.PointsMaterial( { size: 10, sizeAttenuation: false } );
|
||||
materialLine.copy( material );
|
||||
material = materialPoints;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
if ( ! material ) {
|
||||
|
||||
if ( isLine ) {
|
||||
|
||||
material = new THREE.LineBasicMaterial();
|
||||
|
||||
} else if ( isPoints ) {
|
||||
|
||||
material = new THREE.PointsMaterial( { size: 1, sizeAttenuation: false } );
|
||||
|
||||
} else {
|
||||
|
||||
material = new THREE.MeshPhongMaterial();
|
||||
|
||||
}
|
||||
|
||||
material.name = sourceMaterial.name;
|
||||
|
||||
}
|
||||
|
||||
material.flatShading = sourceMaterial.smooth ? false : true;
|
||||
material.vertexColors = hasVertexColors ? THREE.VertexColors : THREE.NoColors;
|
||||
|
||||
createdMaterials.push( material );
|
||||
|
||||
}
|
||||
|
||||
// Create mesh
|
||||
|
||||
var mesh;
|
||||
|
||||
if ( createdMaterials.length > 1 ) {
|
||||
|
||||
for ( var mi = 0, miLen = materials.length; mi < miLen; mi ++ ) {
|
||||
|
||||
var sourceMaterial = materials[ mi ];
|
||||
buffergeometry.addGroup( sourceMaterial.groupStart, sourceMaterial.groupCount, mi );
|
||||
|
||||
}
|
||||
|
||||
if ( isLine ) {
|
||||
|
||||
mesh = new THREE.LineSegments( buffergeometry, createdMaterials );
|
||||
|
||||
} else if ( isPoints ) {
|
||||
|
||||
mesh = new THREE.Points( buffergeometry, createdMaterials );
|
||||
|
||||
} else {
|
||||
|
||||
mesh = new THREE.Mesh( buffergeometry, createdMaterials );
|
||||
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
if ( isLine ) {
|
||||
|
||||
mesh = new THREE.LineSegments( buffergeometry, createdMaterials[ 0 ] );
|
||||
|
||||
} else if ( isPoints ) {
|
||||
|
||||
mesh = new THREE.Points( buffergeometry, createdMaterials[ 0 ] );
|
||||
|
||||
} else {
|
||||
|
||||
mesh = new THREE.Mesh( buffergeometry, createdMaterials[ 0 ] );
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
mesh.name = object.name;
|
||||
|
||||
container.add( mesh );
|
||||
|
||||
}
|
||||
|
||||
console.timeEnd( 'OBJLoader' );
|
||||
|
||||
return container;
|
||||
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
return OBJLoader;
|
||||
|
||||
} )();
|
||||
Ładowanie…
Reference in New Issue