/*
* OBJLoader.java 10 f�vr. 2009
*
* Sweet Home 3D, Copyright (c) 2009 Emmanuel PUYBARET / eTeks <info@eteks.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.eteks.sweethome3d.j3d;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StreamTokenizer;
import java.io.StringReader;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.imageio.ImageIO;
import javax.media.j3d.Appearance;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.ColoringAttributes;
import javax.media.j3d.GeometryArray;
import javax.media.j3d.IndexedGeometryArray;
import javax.media.j3d.LineStripArray;
import javax.media.j3d.Material;
import javax.media.j3d.Shape3D;
import javax.media.j3d.TexCoordGeneration;
import javax.media.j3d.Texture;
import javax.media.j3d.TransparencyAttributes;
import javax.vecmath.Color3f;
import javax.vecmath.Point3f;
import javax.vecmath.TexCoord2f;
import javax.vecmath.Vector3f;
import com.sun.j3d.loaders.IncorrectFormatException;
import com.sun.j3d.loaders.Loader;
import com.sun.j3d.loaders.LoaderBase;
import com.sun.j3d.loaders.ParsingErrorException;
import com.sun.j3d.loaders.Scene;
import com.sun.j3d.loaders.SceneBase;
import com.sun.j3d.utils.geometry.GeometryInfo;
import com.sun.j3d.utils.geometry.NormalGenerator;
import com.sun.j3d.utils.image.TextureLoader;
/**
* An OBJ + MTL loader.
* It supports the same features as {@link com.sun.j3d.loaders.objectfile.ObjectFile ObjectFile}
* Java 3D class, expected for texture images format (supports only BMP, WBMP, GIF, JPEG and PNG format).
* Compared to <code>ObjectFile</code>, this class supports transparency as defined in
* <a href="http://local.wasp.uwa.edu.au/~pbourke/dataformats/mtl/">MTL file format</a>
* specifications, and doesn't oblige to define texture coordinate on all vertices
* when only one face needs such coordinates. Material description is stored in
* {@link OBJMaterial OBJMaterial} instances to be able to use additional OBJ information
* in other circumstances.<br>
* Note: this class is compatible with Java 3D 1.3.
* @author Emmanuel Puybaret
*/
public class OBJLoader extends LoaderBase implements Loader {
/**
* Description of the default Java 3D materials at MTL format
* (copied from com.sun.j3d.loaders.objectfile.DefaultMaterials class with inverse d transparency factor)
*/
private static final String JAVA_3D_MATERIALS =
"newmtl amber\n" +
"Ka 0.0531 0.0531 0.0531\n" +
"Kd 0.5755 0.2678 0.0000\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl amber_trans\n" +
"Ka 0.0531 0.0531 0.0531\n" +
"Kd 0.5755 0.2678 0.0000\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"d 0.1600\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl charcoal\n" +
"Ka 0.0082 0.0082 0.0082\n" +
"Kd 0.0041 0.0041 0.0041\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl lavendar\n" +
"Ka 0.1281 0.0857 0.2122\n" +
"Kd 0.2187 0.0906 0.3469\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl navy_blue\n" +
"Ka 0.0000 0.0000 0.0490\n" +
"Kd 0.0000 0.0000 0.0531\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl pale_green\n" +
"Ka 0.0444 0.0898 0.0447\n" +
"Kd 0.0712 0.3796 0.0490\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl pale_pink\n" +
"Ka 0.0898 0.0444 0.0444\n" +
"Kd 0.6531 0.2053 0.4160\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl pale_yellow\n" +
"Ka 0.3606 0.3755 0.0935\n" +
"Kd 0.6898 0.6211 0.1999\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl peach\n" +
"Ka 0.3143 0.1187 0.0167\n" +
"Kd 0.6367 0.1829 0.0156\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl periwinkle\n" +
"Ka 0.0000 0.0000 0.1184\n" +
"Kd 0.0000 0.0396 0.8286\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl redwood\n" +
"Ka 0.0204 0.0027 0.0000\n" +
"Kd 0.2571 0.0330 0.0000\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl smoked_glass\n" +
"Ka 0.0000 0.0000 0.0000\n" +
"Kd 0.0041 0.0041 0.0041\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"d 0.0200\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl aqua_filter\n" +
"Ka 0.0000 0.0000 0.0000\n" +
"Kd 0.3743 0.6694 0.5791\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"d 0.0200\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl yellow_green\n" +
"Ka 0.0000 0.0000 0.0000\n" +
"Kd 0.1875 0.4082 0.0017\n" +
"Ks 0.1878 0.1878 0.1878\n" +
"illum 2\n" +
"Ns 91.4700\n" +
"\n" +
"newmtl bluetint\n" +
"Ka 0.1100 0.4238 0.5388\n" +
"Kd 0.0468 0.7115 0.9551\n" +
"Ks 0.3184 0.3184 0.3184\n" +
"illum 9\n" +
"d 0.4300\n" +
"Ns 60.0000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl plasma\n" +
"Ka 0.4082 0.0816 0.2129\n" +
"Kd 1.0000 0.0776 0.4478\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 9\n" +
"d 0.2500\n" +
"Ns 60.0000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl emerald\n" +
"Ka 0.0470 1.0000 0.0000\n" +
"Kd 0.0470 1.0000 0.0000\n" +
"Ks 0.2000 0.2000 0.2000\n" +
"illum 9\n" +
"d 0.2500\n" +
"Ns 60.0000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl ruby\n" +
"Ka 1.0000 0.0000 0.0000\n" +
"Kd 1.0000 0.0000 0.0000\n" +
"Ks 0.2000 0.2000 0.2000\n" +
"illum 9\n" +
"d 0.2500\n" +
"Ns 60.0000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl sapphire\n" +
"Ka 0.0235 0.0000 1.0000\n" +
"Kd 0.0235 0.0000 1.0000\n" +
"Ks 0.2000 0.2000 0.2000\n" +
"illum 9\n" +
"d 0.2500\n" +
"Ns 60.0000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl white\n" +
"Ka 0.4000 0.4000 0.4000\n" +
"Kd 1.0000 1.0000 1.0000\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl red\n" +
"Ka 0.4449 0.0000 0.0000\n" +
"Kd 0.7714 0.0000 0.0000\n" +
"Ks 0.8857 0.0000 0.0000\n" +
"illum 2\n" +
"Ns 136.4300\n" +
"\n" +
"newmtl blue_pure\n" +
"Ka 0.0000 0.0000 0.5000\n" +
"Kd 0.0000 0.0000 1.0000\n" +
"Ks 0.0000 0.0000 0.5000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl lime\n" +
"Ka 0.0000 0.5000 0.0000\n" +
"Kd 0.0000 1.0000 0.0000\n" +
"Ks 0.0000 0.5000 0.0000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl green\n" +
"Ka 0.0000 0.2500 0.0000\n" +
"Kd 0.0000 0.2500 0.0000\n" +
"Ks 0.0000 0.2500 0.0000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl yellow\n" +
"Ka 1.0000 0.6667 0.0000\n" +
"Kd 1.0000 0.6667 0.0000\n" +
"Ks 1.0000 0.6667 0.0000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl purple\n" +
"Ka 0.5000 0.0000 1.0000\n" +
"Kd 0.5000 0.0000 1.0000\n" +
"Ks 0.5000 0.0000 1.0000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl orange\n" +
"Ka 1.0000 0.1667 0.0000\n" +
"Kd 1.0000 0.1667 0.0000\n" +
"Ks 1.0000 0.1667 0.0000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl grey\n" +
"Ka 0.5000 0.5000 0.5000\n" +
"Kd 0.1837 0.1837 0.1837\n" +
"Ks 0.5000 0.5000 0.5000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl rubber\n" +
"Ka 0.0000 0.0000 0.0000\n" +
"Kd 0.0100 0.0100 0.0100\n" +
"Ks 0.1000 0.1000 0.1000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl flaqua\n" +
"Ka 0.0000 0.4000 0.4000\n" +
"Kd 0.0000 0.5000 0.5000\n" +
"illum 1\n" +
"\n" +
"newmtl flblack\n" +
"Ka 0.0000 0.0000 0.0000\n" +
"Kd 0.0041 0.0041 0.0041\n" +
"illum 1\n" +
"\n" +
"newmtl flblue_pure\n" +
"Ka 0.0000 0.0000 0.5592\n" +
"Kd 0.0000 0.0000 0.7102\n" +
"illum 1\n" +
"\n" +
"newmtl flgrey\n" +
"Ka 0.2163 0.2163 0.2163\n" +
"Kd 0.5000 0.5000 0.5000\n" +
"illum 1\n" +
"\n" +
"newmtl fllime\n" +
"Ka 0.0000 0.3673 0.0000\n" +
"Kd 0.0000 1.0000 0.0000\n" +
"illum 1\n" +
"\n" +
"newmtl florange\n" +
"Ka 0.6857 0.1143 0.0000\n" +
"Kd 1.0000 0.1667 0.0000\n" +
"illum 1\n" +
"\n" +
"newmtl flpurple\n" +
"Ka 0.2368 0.0000 0.4735\n" +
"Kd 0.3755 0.0000 0.7510\n" +
"illum 1\n" +
"\n" +
"newmtl flred\n" +
"Ka 0.4000 0.0000 0.0000\n" +
"Kd 1.0000 0.0000 0.0000\n" +
"illum 1\n" +
"\n" +
"newmtl flyellow\n" +
"Ka 0.7388 0.4925 0.0000\n" +
"Kd 1.0000 0.6667 0.0000\n" +
"illum 1\n" +
"\n" +
"newmtl pink\n" +
"Ka 0.9469 0.0078 0.2845\n" +
"Kd 0.9878 0.1695 0.6702\n" +
"Ks 0.7429 0.2972 0.2972\n" +
"illum 2\n" +
"Ns 106.2000\n" +
"\n" +
"newmtl flbrown\n" +
"Ka 0.0571 0.0066 0.0011\n" +
"Kd 0.1102 0.0120 0.0013\n" +
"illum 1\n" +
"\n" +
"newmtl brown\n" +
"Ka 0.1020 0.0185 0.0013\n" +
"Kd 0.0857 0.0147 0.0000\n" +
"Ks 0.1633 0.0240 0.0000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl glass\n" +
"Ka 1.0000 1.0000 1.0000\n" +
"Kd 0.4873 0.4919 0.5306\n" +
"Ks 0.6406 0.6939 0.9020\n" +
"illum 2\n" +
"Ns 200.0000\n" +
"\n" +
"newmtl flesh\n" +
"Ka 0.4612 0.3638 0.2993\n" +
"Kd 0.5265 0.4127 0.3374\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl aqua\n" +
"Ka 0.0000 0.4000 0.4000\n" +
"Kd 0.0000 0.5000 0.5000\n" +
"Ks 0.5673 0.5673 0.5673\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl black\n" +
"Ka 0.0000 0.0000 0.0000\n" +
"Kd 0.0020 0.0020 0.0020\n" +
"Ks 0.5184 0.5184 0.5184\n" +
"illum 2\n" +
"Ns 157.3600\n" +
"\n" +
"newmtl silver\n" +
"Ka 0.9551 0.9551 0.9551\n" +
"Kd 0.6163 0.6163 0.6163\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl dkblue_pure\n" +
"Ka 0.0000 0.0000 0.0449\n" +
"Kd 0.0000 0.0000 0.1347\n" +
"Ks 0.0000 0.0000 0.5673\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl fldkblue_pure\n" +
"Ka 0.0000 0.0000 0.0449\n" +
"Kd 0.0000 0.0000 0.1347\n" +
"illum 1\n" +
"\n" +
"newmtl dkgreen\n" +
"Ka 0.0000 0.0122 0.0000\n" +
"Kd 0.0058 0.0245 0.0000\n" +
"Ks 0.0000 0.0490 0.0000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl dkgrey\n" +
"Ka 0.0490 0.0490 0.0490\n" +
"Kd 0.0490 0.0490 0.0490\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl ltbrown\n" +
"Ka 0.1306 0.0538 0.0250\n" +
"Kd 0.2776 0.1143 0.0531\n" +
"Ks 0.3000 0.1235 0.0574\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl fldkgreen\n" +
"Ka 0.0000 0.0122 0.0000\n" +
"Kd 0.0058 0.0245 0.0000\n" +
"illum 1\n" +
"\n" +
"newmtl flltbrown\n" +
"Ka 0.1306 0.0538 0.0250\n" +
"Kd 0.2776 0.1143 0.0531\n" +
"illum 1\n" +
"\n" +
"newmtl tan\n" +
"Ka 0.4000 0.3121 0.1202\n" +
"Kd 0.6612 0.5221 0.2186\n" +
"Ks 0.5020 0.4118 0.2152\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl fltan\n" +
"Ka 0.4000 0.3121 0.1202\n" +
"Kd 0.6612 0.4567 0.1295\n" +
"illum 1\n" +
"\n" +
"newmtl brzskin\n" +
"Ka 0.4408 0.2694 0.1592\n" +
"Kd 0.3796 0.2898 0.2122\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 25.0000\n" +
"\n" +
"newmtl lips\n" +
"Ka 0.4408 0.2694 0.1592\n" +
"Kd 0.9265 0.2612 0.2898\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 25.0000\n" +
"\n" +
"newmtl redorange\n" +
"Ka 0.3918 0.0576 0.0000\n" +
"Kd 0.7551 0.0185 0.0000\n" +
"Ks 0.4694 0.3224 0.1667\n" +
"illum 2\n" +
"Ns 132.5600\n" +
"\n" +
"newmtl blutan\n" +
"Ka 0.4408 0.2694 0.1592\n" +
"Kd 0.0776 0.2571 0.2041\n" +
"Ks 0.1467 0.1469 0.0965\n" +
"illum 2\n" +
"Ns 25.0000\n" +
"\n" +
"newmtl bluteal\n" +
"Ka 0.0041 0.1123 0.1224\n" +
"Kd 0.0776 0.2571 0.2041\n" +
"Ks 0.1467 0.1469 0.0965\n" +
"illum 2\n" +
"Ns 25.0000\n" +
"\n" +
"newmtl pinktan\n" +
"Ka 0.4408 0.2694 0.1592\n" +
"Kd 0.6857 0.2571 0.2163\n" +
"Ks 0.1467 0.1469 0.0965\n" +
"illum 2\n" +
"Ns 25.0000\n" +
"\n" +
"newmtl brnhair\n" +
"Ka 0.0612 0.0174 0.0066\n" +
"Kd 0.0898 0.0302 0.0110\n" +
"Ks 0.1306 0.0819 0.0352\n" +
"illum 2\n" +
"Ns 60.4700\n" +
"\n" +
"newmtl blondhair\n" +
"Ka 0.4449 0.2632 0.0509\n" +
"Kd 0.5714 0.3283 0.0443\n" +
"Ks 0.7755 0.4602 0.0918\n" +
"illum 2\n" +
"Ns 4.6500\n" +
"\n" +
"newmtl flblonde\n" +
"Ka 0.4449 0.2632 0.0509\n" +
"Kd 0.5714 0.3283 0.0443\n" +
"illum 1\n" +
"\n" +
"newmtl yelloworng\n" +
"Ka 0.5837 0.1715 0.0000\n" +
"Kd 0.8857 0.2490 0.0000\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl bone\n" +
"Ka 0.3061 0.1654 0.0650\n" +
"Kd 0.9000 0.7626 0.4261\n" +
"Ks 0.8939 0.7609 0.5509\n" +
"illum 2\n" +
"Ns 200.0000\n" +
"\n" +
"newmtl teeth\n" +
"Ka 0.6408 0.5554 0.3845\n" +
"Kd 0.9837 0.7959 0.4694\n" +
"illum 1\n" +
"\n" +
"newmtl brass\n" +
"Ka 0.2490 0.1102 0.0000\n" +
"Kd 0.4776 0.1959 0.0000\n" +
"Ks 0.5796 0.5796 0.5796\n" +
"illum 2\n" +
"Ns 134.8800\n" +
"\n" +
"newmtl dkred\n" +
"Ka 0.0939 0.0000 0.0000\n" +
"Kd 0.2286 0.0000 0.0000\n" +
"Ks 0.2490 0.0000 0.0000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl taupe\n" +
"Ka 0.1061 0.0709 0.0637\n" +
"Kd 0.2041 0.1227 0.1058\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 84.5000\n" +
"\n" +
"newmtl dkteal\n" +
"Ka 0.0000 0.0245 0.0163\n" +
"Kd 0.0000 0.0653 0.0449\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 55.0400\n" +
"\n" +
"newmtl dkdkgrey\n" +
"Ka 0.0000 0.0000 0.0000\n" +
"Kd 0.0122 0.0122 0.0122\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl dkblue\n" +
"Ka 0.0000 0.0029 0.0408\n" +
"Kd 0.0000 0.0041 0.0571\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl gold\n" +
"Ka 0.7224 0.1416 0.0000\n" +
"Kd 1.0000 0.4898 0.0000\n" +
"Ks 0.7184 0.3695 0.3695\n" +
"illum 2\n" +
"Ns 123.2600\n" +
"\n" +
"newmtl redbrick\n" +
"Ka 0.1102 0.0067 0.0067\n" +
"Kd 0.3306 0.0398 0.0081\n" +
"illum 1\n" +
"\n" +
"newmtl flmustard\n" +
"Ka 0.4245 0.2508 0.0000\n" +
"Kd 0.8898 0.3531 0.0073\n" +
"illum 1\n" +
"\n" +
"newmtl flpinegreen\n" +
"Ka 0.0367 0.0612 0.0204\n" +
"Kd 0.1061 0.2163 0.0857\n" +
"illum 1\n" +
"\n" +
"newmtl fldkred\n" +
"Ka 0.0939 0.0000 0.0000\n" +
"Kd 0.2286 0.0082 0.0082\n" +
"illum 1\n" +
"\n" +
"newmtl fldkgreen2\n" +
"Ka 0.0025 0.0122 0.0014\n" +
"Kd 0.0245 0.0694 0.0041\n" +
"illum 1\n" +
"\n" +
"newmtl flmintgreen\n" +
"Ka 0.0408 0.1429 0.0571\n" +
"Kd 0.1306 0.2898 0.1673\n" +
"illum 1\n" +
"\n" +
"newmtl olivegreen\n" +
"Ka 0.0167 0.0245 0.0000\n" +
"Kd 0.0250 0.0367 0.0000\n" +
"Ks 0.2257 0.2776 0.1167\n" +
"illum 2\n" +
"Ns 97.6700\n" +
"\n" +
"newmtl skin\n" +
"Ka 0.2286 0.0187 0.0187\n" +
"Kd 0.1102 0.0328 0.0139\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 17.8300\n" +
"\n" +
"newmtl redbrown\n" +
"Ka 0.1469 0.0031 0.0000\n" +
"Kd 0.2816 0.0060 0.0000\n" +
"Ks 0.3714 0.3714 0.3714\n" +
"illum 2\n" +
"Ns 141.0900\n" +
"\n" +
"newmtl deepgreen\n" +
"Ka 0.0000 0.0050 0.0000\n" +
"Kd 0.0000 0.0204 0.0050\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 113.1800\n" +
"\n" +
"newmtl flltolivegreen\n" +
"Ka 0.0167 0.0245 0.0000\n" +
"Kd 0.0393 0.0531 0.0100\n" +
"illum 1\n" +
"\n" +
"newmtl jetflame\n" +
"Ka 0.7714 0.0000 0.0000\n" +
"Kd 0.9510 0.4939 0.0980\n" +
"Ks 0.8531 0.5222 0.0000\n" +
"illum 2\n" +
"Ns 132.5600\n" +
"\n" +
"newmtl brownskn\n" +
"Ka 0.0122 0.0041 0.0000\n" +
"Kd 0.0204 0.0082 0.0000\n" +
"Ks 0.0735 0.0508 0.0321\n" +
"illum 2\n" +
"Ns 20.1600\n" +
"\n" +
"newmtl greenskn\n" +
"Ka 0.0816 0.0449 0.0000\n" +
"Kd 0.0000 0.0735 0.0000\n" +
"Ks 0.0490 0.1224 0.0898\n" +
"illum 3\n" +
"Ns 46.5100\n" +
"sharpness 146.5100\n" +
"\n" +
"newmtl ltgrey\n" +
"Ka 0.5000 0.5000 0.5000\n" +
"Kd 0.3837 0.3837 0.3837\n" +
"Ks 0.5000 0.5000 0.5000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl bronze\n" +
"Ka 0.0449 0.0204 0.0000\n" +
"Kd 0.0653 0.0367 0.0122\n" +
"Ks 0.0776 0.0408 0.0000\n" +
"illum 3\n" +
"Ns 137.2100\n" +
"sharpness 125.5800\n" +
"\n" +
"newmtl bone1\n" +
"Ka 0.6408 0.5554 0.3845\n" +
"Kd 0.9837 0.7959 0.4694\n" +
"illum 1\n" +
"\n" +
"newmtl flwhite1\n" +
"Ka 0.9306 0.9306 0.9306\n" +
"Kd 1.0000 1.0000 1.0000\n" +
"illum 1\n" +
"\n" +
"newmtl flwhite\n" +
"Ka 0.6449 0.6116 0.5447\n" +
"Kd 0.9837 0.9309 0.8392\n" +
"Ks 0.8082 0.7290 0.5708\n" +
"illum 2\n" +
"Ns 200.0000\n" +
"\n" +
"newmtl shadow\n" +
"Kd 0.0350 0.0248 0.0194\n" +
"illum 0\n" +
"d 0.2500\n" +
"\n" +
"newmtl fldkolivegreen\n" +
"Ka 0.0056 0.0082 0.0000\n" +
"Kd 0.0151 0.0204 0.0038\n" +
"illum 1\n" +
"\n" +
"newmtl fldkdkgrey\n" +
"Ka 0.0000 0.0000 0.0000\n" +
"Kd 0.0122 0.0122 0.0122\n" +
"illum 1\n" +
"\n" +
"newmtl lcdgreen\n" +
"Ka 0.4000 0.4000 0.4000\n" +
"Kd 0.5878 1.0000 0.5061\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl brownlips\n" +
"Ka 0.1143 0.0694 0.0245\n" +
"Kd 0.1429 0.0653 0.0408\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 25.0000\n" +
"\n" +
"newmtl muscle\n" +
"Ka 0.2122 0.0077 0.0154\n" +
"Kd 0.4204 0.0721 0.0856\n" +
"Ks 0.1184 0.1184 0.1184\n" +
"illum 2\n" +
"Ns 25.5800\n" +
"\n" +
"newmtl flltgrey\n" +
"Ka 0.5224 0.5224 0.5224\n" +
"Kd 0.8245 0.8245 0.8245\n" +
"illum 1\n" +
"\n" +
"newmtl offwhite.warm\n" +
"Ka 0.5184 0.4501 0.3703\n" +
"Kd 0.8367 0.6898 0.4490\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl offwhite.cool\n" +
"Ka 0.5184 0.4501 0.3703\n" +
"Kd 0.8367 0.6812 0.5703\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl yellowbrt\n" +
"Ka 0.4000 0.4000 0.4000\n" +
"Kd 1.0000 0.7837 0.0000\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl chappie\n" +
"Ka 0.4000 0.4000 0.4000\n" +
"Kd 0.5837 0.1796 0.0367\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl archwhite\n" +
"Ka 0.2816 0.2816 0.2816\n" +
"Kd 0.9959 0.9959 0.9959\n" +
"illum 1\n" +
"\n" +
"newmtl archwhite2\n" +
"Ka 0.2816 0.2816 0.2816\n" +
"Kd 0.8408 0.8408 0.8408\n" +
"illum 1\n" +
"\n" +
"newmtl lighttan\n" +
"Ka 0.0980 0.0536 0.0220\n" +
"Kd 0.7020 0.4210 0.2206\n" +
"Ks 0.8286 0.8057 0.5851\n" +
"illum 2\n" +
"Ns 177.5200\n" +
"\n" +
"newmtl lighttan2\n" +
"Ka 0.0980 0.0492 0.0144\n" +
"Kd 0.3143 0.1870 0.0962\n" +
"Ks 0.8286 0.8057 0.5851\n" +
"illum 2\n" +
"Ns 177.5200\n" +
"\n" +
"newmtl lighttan3\n" +
"Ka 0.0980 0.0492 0.0144\n" +
"Kd 0.1796 0.0829 0.0139\n" +
"Ks 0.8286 0.8057 0.5851\n" +
"illum 2\n" +
"Ns 177.5200\n" +
"\n" +
"newmtl lightyellow\n" +
"Ka 0.5061 0.1983 0.0000\n" +
"Kd 1.0000 0.9542 0.3388\n" +
"Ks 1.0000 0.9060 0.0000\n" +
"illum 2\n" +
"Ns 177.5200\n" +
"\n" +
"newmtl lighttannew\n" +
"Ka 0.0980 0.0492 0.0144\n" +
"Kd 0.7878 0.6070 0.3216\n" +
"Ks 0.8286 0.8057 0.5851\n" +
"illum 2\n" +
"Ns 177.5200\n" +
"\n" +
"newmtl default\n" +
"Ka 0.4000 0.4000 0.4000\n" +
"Kd 0.7102 0.7020 0.6531\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 128.0000\n" +
"\n" +
"newmtl ship2\n" +
"Ka 0.0000 0.0000 0.0000\n" +
"Kd 1.0000 1.0000 1.0000\n" +
"Ks 0.1143 0.1143 0.1143\n" +
"illum 2\n" +
"Ns 60.0000\n" +
"\n" +
"newmtl dkpurple\n" +
"Ka 0.0082 0.0000 0.0163\n" +
"Kd 0.0245 0.0000 0.0490\n" +
"Ks 0.1266 0.0000 0.2531\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl dkorange\n" +
"Ka 0.4041 0.0123 0.0000\n" +
"Kd 0.7143 0.0350 0.0000\n" +
"Ks 0.7102 0.0870 0.0000\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl mintgrn\n" +
"Ka 0.0101 0.1959 0.0335\n" +
"Kd 0.0245 0.4776 0.0816\n" +
"Ks 0.0245 0.4776 0.0816\n" +
"illum 2\n" +
"Ns 65.8900\n" +
"\n" +
"newmtl fgreen\n" +
"Ka 0.0000 0.0449 0.0000\n" +
"Kd 0.0000 0.0449 0.0004\n" +
"Ks 0.0062 0.0694 0.0000\n" +
"illum 2\n" +
"Ns 106.2000\n" +
"\n" +
"newmtl glassblutint\n" +
"Ka 0.4000 0.4000 0.4000\n" +
"Kd 0.5551 0.8000 0.7730\n" +
"Ks 0.7969 0.9714 0.9223\n" +
"illum 4\n" +
"d 0.6700\n" +
"Ns 60.0000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl bflesh\n" +
"Ka 0.0122 0.0122 0.0122\n" +
"Kd 0.0245 0.0081 0.0021\n" +
"Ks 0.0531 0.0460 0.0153\n" +
"illum 2\n" +
"Ns 20.1600\n" +
"\n" +
"newmtl meh\n" +
"Ka 0.4000 0.4000 0.4000\n" +
"Kd 0.5551 0.8000 0.7730\n" +
"Ks 0.7969 0.9714 0.9223\n" +
"illum 4\n" +
"d 0.2500\n" +
"Ns 183.7200\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl violet\n" +
"Ka 0.0083 0.0000 0.1265\n" +
"Kd 0.0287 0.0269 0.1347\n" +
"Ks 0.2267 0.4537 0.6612\n" +
"illum 2\n" +
"Ns 96.9000\n" +
"\n" +
"newmtl iris\n" +
"Ka 0.3061 0.0556 0.0037\n" +
"Kd 0.0000 0.0572 0.3184\n" +
"Ks 0.8041 0.6782 0.1477\n" +
"illum 2\n" +
"Ns 188.3700\n" +
"\n" +
"newmtl blugrn\n" +
"Ka 0.4408 0.4144 0.1592\n" +
"Kd 0.0811 0.6408 0.2775\n" +
"Ks 0.1467 0.1469 0.0965\n" +
"illum 2\n" +
"Ns 25.0000\n" +
"\n" +
"newmtl glasstransparent\n" +
"Ka 0.2163 0.2163 0.2163\n" +
"Kd 0.4694 0.4694 0.4694\n" +
"Ks 0.6082 0.6082 0.6082\n" +
"illum 4\n" +
"d 0.2500\n" +
"Ns 200.0000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl fleshtransparent\n" +
"Ka 0.4000 0.2253 0.2253\n" +
"Kd 0.6898 0.2942 0.1295\n" +
"Ks 0.7388 0.4614 0.4614\n" +
"illum 4\n" +
"d 0.2500\n" +
"Ns 6.2000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl fldkgrey\n" +
"Ka 0.0449 0.0449 0.0449\n" +
"Kd 0.0939 0.0939 0.0939\n" +
"illum 1\n" +
"\n" +
"newmtl sky_blue\n" +
"Ka 0.1363 0.2264 0.4122\n" +
"Kd 0.1241 0.5931 0.8000\n" +
"Ks 0.0490 0.0490 0.0490\n" +
"illum 2\n" +
"Ns 13.9500\n" +
"\n" +
"newmtl fldkpurple\n" +
"Ka 0.0443 0.0257 0.0776\n" +
"Kd 0.1612 0.0000 0.3347\n" +
"Ks 0.0000 0.0000 0.0000\n" +
"illum 2\n" +
"Ns 13.9500\n" +
"\n" +
"newmtl dkbrown\n" +
"Ka 0.0143 0.0062 0.0027\n" +
"Kd 0.0087 0.0038 0.0016\n" +
"Ks 0.2370 0.2147 0.1821\n" +
"illum 3\n" +
"Ns 60.0000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl bone2\n" +
"Ka 0.6408 0.5388 0.3348\n" +
"Kd 0.9837 0.8620 0.6504\n" +
"illum 1\n" +
"\n" +
"newmtl bluegrey\n" +
"Ka 0.4000 0.4000 0.4000\n" +
"Kd 0.1881 0.2786 0.2898\n" +
"Ks 0.3000 0.3000 0.3000\n" +
"illum 2\n" +
"Ns 14.7300\n" +
"\n" +
"newmtl metal\n" +
"Ka 0.9102 0.8956 0.1932\n" +
"Kd 0.9000 0.7626 0.4261\n" +
"Ks 0.8939 0.8840 0.8683\n" +
"illum 2\n" +
"Ns 200.0000\n" +
"\n" +
"newmtl sand_stone\n" +
"Ka 0.1299 0.1177 0.0998\n" +
"Kd 0.1256 0.1138 0.0965\n" +
"Ks 0.2370 0.2147 0.1821\n" +
"illum 3\n" +
"Ns 60.0000\n" +
"sharpness 60.0000\n" +
"\n" +
"newmtl hair\n" +
"Ka 0.0013 0.0012 0.0010\n" +
"Kd 0.0008 0.0007 0.0006\n" +
"Ks 0.0000 0.0000 0.0000\n" +
"illum 3\n" +
"Ns 60.0000\n" +
"sharpness 60.0000\n";
private final static Map<String, Appearance> DEFAULT_APPEARANCES;
static {
try {
DEFAULT_APPEARANCES = parseMaterialStream(new StringReader(JAVA_3D_MATERIALS), null, null);
} catch (IOException ex) {
// Can't happen because materials are read from a string
throw new InternalError("Can't access to default materials");
}
}
private Boolean useCaches;
private List<Point3f> vertices;
private List<TexCoord2f> textureCoodinates;
private List<Vector3f> normals;
private Map<String, Group> groups;
private Group currentGroup;
private String currentMaterial;
private Map<String, Appearance> appearances;
/**
* Sets whether this loader should try or avoid accessing to URLs with cache.
* @param useCaches <code>Boolean.TRUE</code>, <code>Boolean.FALSE</code>, or
* <code>null</code> then caches will be used according to the value
* returned by {@link URLConnection#getDefaultUseCaches()}.
*/
public void setUseCaches(Boolean useCaches) {
this.useCaches = Boolean.valueOf(useCaches);
}
/**
* Returns the scene described in the given OBJ file.
*/
public Scene load(String file) throws FileNotFoundException, IncorrectFormatException, ParsingErrorException {
URL baseUrl;
try {
if (this.basePath != null) {
baseUrl = new File(this.basePath).toURI().toURL();
} else {
baseUrl = new File(file).toURI().toURL();
}
} catch (MalformedURLException ex) {
throw new FileNotFoundException(file);
}
try {
return load(new InputStreamReader(new FileInputStream(file), "ISO-8859-1"), baseUrl);
} catch (UnsupportedEncodingException ex) {
// Shouldn't happen
return load(new InputStreamReader(new FileInputStream(file)));
}
}
/**
* Returns the scene described in the given OBJ file URL.
*/
public Scene load(URL url) throws FileNotFoundException, IncorrectFormatException, ParsingErrorException {
URL baseUrl = this.baseUrl;
if (this.baseUrl == null) {
baseUrl = url;
}
InputStream in;
try {
in = openStream(url, this.useCaches);
} catch (IOException ex) {
throw new FileNotFoundException("Can't read " + url);
}
try {
return load(new InputStreamReader(in, "ISO-8859-1"), baseUrl);
} catch (UnsupportedEncodingException ex) {
// Shouldn't happen
return load(new InputStreamReader(in));
}
}
/**
* Returns an input stream ready to read data from the given URL.
*/
private static InputStream openStream(URL url, Boolean useCaches) throws IOException {
URLConnection connection = url.openConnection();
if (useCaches != null) {
connection.setUseCaches(useCaches.booleanValue());
}
return connection.getInputStream();
}
/**
* Returns the scene described in the given OBJ file stream.
*/
public Scene load(Reader reader) throws FileNotFoundException, IncorrectFormatException, ParsingErrorException {
return load(reader, null);
}
/**
* Returns the scene described in the given OBJ file.
*/
private Scene load(Reader reader, URL baseUrl) throws FileNotFoundException {
if (!(reader instanceof BufferedReader)) {
reader = new BufferedReader(reader);
}
try {
return parseObjectStream(reader, baseUrl);
} catch (IOException ex) {
throw new ParsingErrorException(ex.getMessage());
} finally {
try {
reader.close();
} catch (IOException ex) {
throw new ParsingErrorException(ex.getMessage());
}
}
}
/**
* Returns the scene parsed from a stream.
*/
private Scene parseObjectStream(Reader reader,
URL baseUrl) throws IOException {
this.vertices = new ArrayList<Point3f>();
this.textureCoodinates = new ArrayList<TexCoord2f>();
this.normals = new ArrayList<Vector3f>();
this.groups = new LinkedHashMap<String, Group>();
this.currentGroup = new Group("default");
this.groups.put("default", this.currentGroup);
this.currentMaterial = "default";
this.appearances = new HashMap<String, Appearance>(DEFAULT_APPEARANCES);
StreamTokenizer tokenizer = createTokenizer(reader);
while (tokenizer.nextToken() != StreamTokenizer.TT_EOF) {
switch (tokenizer.ttype) {
case StreamTokenizer.TT_WORD :
parseObjectLine(tokenizer, baseUrl);
break;
case StreamTokenizer.TT_EOL:
break;
default :
throw new IncorrectFormatException("Unexpected token " + tokenizer.sval
+ " at row " + tokenizer.lineno());
}
}
try {
return createScene();
} finally {
this.vertices = null;
this.textureCoodinates = null;
this.normals = null;
this.groups = null;
this.appearances = null;
}
}
/**
* Returns a new scene created from the parsed objects.
*/
private SceneBase createScene() {
Point3f [] vertices = this.vertices.toArray(new Point3f [this.vertices.size()]);
TexCoord2f [] textureCoodinates =
this.textureCoodinates.toArray(new TexCoord2f [this.textureCoodinates.size()]);
Vector3f [] normals = this.normals.toArray(new Vector3f [this.normals.size()]);
SceneBase scene = new SceneBase();
BranchGroup sceneRoot = new BranchGroup();
scene.setSceneGroup(sceneRoot);
for (Group group : this.groups.values()) {
List<Geometry> geometries = group.getGeometry();
if (geometries != null
&& !geometries.isEmpty()) {
int i = 0;
while (i < geometries.size()) {
Geometry firstGeometry = geometries.get(i);
boolean firstGeometryHasTextureCoordinateIndices = firstGeometry.hasTextureCoordinateIndices();
boolean firstFaceHasNormalIndices = (firstGeometry instanceof Face) && ((Face)firstGeometry).hasNormalIndices();
String firstGeometryMaterial = firstGeometry.getMaterial();
Appearance appearance = getAppearance(firstGeometryMaterial);
// Search how many geometries share the same characteristics
int max = i;
while (++max < geometries.size()) {
Geometry geometry = geometries.get(max);
String material = geometry.getMaterial();
if (geometry.getClass() != firstGeometry.getClass()
|| material == null && firstGeometryMaterial != null
|| material != null && getAppearance(material) != appearance
|| (firstGeometryHasTextureCoordinateIndices ^ geometry.hasTextureCoordinateIndices())
|| (firstFaceHasNormalIndices ^ ((firstGeometry instanceof Face) && ((Face)geometry).hasNormalIndices()))) {
break;
}
}
// Create indices arrays for the faces with an index between i and max
int faceCount = max - i;
int indexCount = 0;
for (int j = 0; j < faceCount; j++) {
indexCount += geometries.get(i + j).getVertexIndices().length;
}
int [] coordinatesIndices = new int [indexCount];
int [] stripCounts = new int [faceCount];
for (int j = 0, destIndex = 0; j < faceCount; j++) {
int [] geometryVertexIndices = geometries.get(i + j).getVertexIndices();
System.arraycopy(geometryVertexIndices, 0, coordinatesIndices, destIndex, geometryVertexIndices.length);
stripCounts [j] = geometryVertexIndices.length;
destIndex += geometryVertexIndices.length;
}
int [] textureCoordinateIndices = null;
if (firstGeometryHasTextureCoordinateIndices) {
textureCoordinateIndices = new int [indexCount];
for (int j = 0, destIndex = 0; j < faceCount; j++) {
int [] geometryTextureCoordinateIndices = geometries.get(i + j).getTextureCoordinateIndices();
System.arraycopy(geometryTextureCoordinateIndices, 0, textureCoordinateIndices, destIndex, geometryTextureCoordinateIndices.length);
destIndex += geometryTextureCoordinateIndices.length;
}
}
GeometryArray geometryArray;
if (firstGeometry instanceof Face) {
GeometryInfo geometryInfo = new GeometryInfo(GeometryInfo.POLYGON_ARRAY);
geometryInfo.setCoordinates(vertices);
geometryInfo.setCoordinateIndices(coordinatesIndices);
geometryInfo.setStripCounts(stripCounts);
if (firstGeometryHasTextureCoordinateIndices) {
geometryInfo.setTextureCoordinateParams(1, 2);
geometryInfo.setTextureCoordinates(0, textureCoodinates);
geometryInfo.setTextureCoordinateIndices(0, textureCoordinateIndices);
}
if (firstFaceHasNormalIndices) {
int [] normalIndices = new int [indexCount];
for (int j = 0, destIndex = 0; j < faceCount; j++) {
int [] faceNormalIndices = ((Face)geometries.get(i + j)).getNormalIndices();
System.arraycopy(faceNormalIndices, 0, normalIndices, destIndex, faceNormalIndices.length);
destIndex += faceNormalIndices.length;
}
geometryInfo.setNormals(normals);
geometryInfo.setNormalIndices(normalIndices);
} else {
NormalGenerator normalGenerator = new NormalGenerator(Math.PI / 2);
if (!group.isSmooth()) {
normalGenerator.setCreaseAngle(0);
}
normalGenerator.generateNormals(geometryInfo);
}
geometryArray = geometryInfo.getGeometryArray(true, true, false);
} else { // Line
int format = IndexedGeometryArray.COORDINATES;
if (firstGeometryHasTextureCoordinateIndices) {
format |= IndexedGeometryArray.TEXTURE_COORDINATE_2;
}
// Use non indexed line array to avoid referencing the whole vertices
geometryArray = new LineStripArray(coordinatesIndices.length, format, stripCounts);
for (int j = 0; j < coordinatesIndices.length; j++) {
geometryArray.setCoordinate(j, vertices [coordinatesIndices [j]]);
}
if (firstGeometryHasTextureCoordinateIndices) {
for (int j = 0; j < coordinatesIndices.length; j++) {
geometryArray.setTextureCoordinate(0, j, textureCoodinates [textureCoordinateIndices [j]]);
}
}
}
// Clone appearance to avoid sharing it
if (appearance != null) {
appearance = (Appearance)appearance.cloneNodeComponent(false);
// Create texture coordinates if geometry doesn't define its own coordinates
// and appearance contains a texture
if (!firstGeometryHasTextureCoordinateIndices
&& appearance.getTexture() != null) {
appearance.setTexCoordGeneration(new TexCoordGeneration());
}
}
Shape3D shape = new Shape3D(geometryArray, appearance);
sceneRoot.addChild(shape);
scene.addNamedObject(group.getName() + (i == 0 ? "" : String.valueOf(i)), shape);
i = max;
}
}
}
return scene;
}
/**
* Returns the appearance matching a given <code>material</code>.
*/
private Appearance getAppearance(String material) {
Appearance appearance = null;
if (material != null) {
appearance = this.appearances.get(material);
}
if (appearance == null) {
appearance = DEFAULT_APPEARANCES.get("default");
}
return appearance;
}
/**
* Parses the line starting with a word.
*/
private void parseObjectLine(StreamTokenizer tokenizer,
URL baseUrl) throws IOException {
if ("v".equals(tokenizer.sval)) {
// Read vertex v x y z
float x = parseNumber(tokenizer);
skipBackSlash(tokenizer);
float y = parseNumber(tokenizer);
skipBackSlash(tokenizer);
float z = parseNumber(tokenizer);
this.vertices.add(new Point3f(x, y, z));
// Skip next number if it exists
if (tokenizer.nextToken() == StreamTokenizer.TT_EOL) {
tokenizer.pushBack();
}
} else if ("vn".equals(tokenizer.sval)) {
// Read normal vn x y z
float x = parseNumber(tokenizer);
skipBackSlash(tokenizer);
float y = parseNumber(tokenizer);
skipBackSlash(tokenizer);
float z = parseNumber(tokenizer);
this.normals.add(new Vector3f(x, y, z));
} else if ("vt".equals(tokenizer.sval)) {
// Read texture coordinate vt x y
// or vt x y z
float x = parseNumber(tokenizer);
skipBackSlash(tokenizer);
float y = parseNumber(tokenizer);
this.textureCoodinates.add(new TexCoord2f(x, y));
// Skip next number if it exists
if (tokenizer.nextToken() == StreamTokenizer.TT_EOL) {
tokenizer.pushBack();
}
} else if ("l".equals(tokenizer.sval)) {
tokenizer.ordinaryChar('/');
// Read line l v v v ...
// or l v/vt v/vt v/vt ...
List<Integer> vertexIndices = new ArrayList<Integer>(2);
List<Integer> textureCoordinateIndices = new ArrayList<Integer>(2);
boolean first = true;
while (true) {
if (first) {
first = false;
} else {
skipBackSlash(tokenizer);
}
if (tokenizer.nextToken() == StreamTokenizer.TT_EOL) {
break;
} else {
tokenizer.pushBack();
}
// Read vertex index
int vertexIndex = parseInteger(tokenizer) - 1;
if (vertexIndex < 0) {
vertexIndex += this.vertices.size() + 1;
}
vertexIndices.add(vertexIndex);
if (tokenizer.nextToken() != '/') {
// l v
tokenizer.pushBack();
} else {
// l v/vt : read texture coordinate index
int textureCoordinateIndex = parseInteger(tokenizer) - 1;
if (textureCoordinateIndex < 0) {
textureCoordinateIndex += this.textureCoodinates.size() + 1;
}
textureCoordinateIndices.add(textureCoordinateIndex);
}
}
tokenizer.pushBack();
tokenizer.wordChars('/', '/');
if (textureCoordinateIndices.size() != 0
&& textureCoordinateIndices.size() != vertexIndices.size()) {
// Ignore unconsistent texture coordinate
textureCoordinateIndices.clear();
}
if (vertexIndices.size() > 1) {
this.currentGroup.addGeometry(new Line(vertexIndices, textureCoordinateIndices,
this.currentMaterial));
}
} else if ("f".equals(tokenizer.sval)) {
tokenizer.ordinaryChar('/');
// Read face f v v v ...
// or f v//vn v//vn v//vn ...
// or f v/vt v/vt v/vt ...
// or f v/vt/vn v/vt/vn v/vt/vn ...
List<Integer> vertexIndices = new ArrayList<Integer>(4);
List<Integer> textureCoordinateIndices = new ArrayList<Integer>(4);
List<Integer> normalIndices = new ArrayList<Integer>(4);
boolean first = true;
while (true) {
if (first) {
first = false;
} else {
skipBackSlash(tokenizer);
}
if (tokenizer.nextToken() == StreamTokenizer.TT_EOL) {
break;
} else {
tokenizer.pushBack();
}
// Read vertex index
int vertexIndex = parseInteger(tokenizer) - 1;
if (vertexIndex < 0) {
vertexIndex += this.vertices.size() + 1;
}
vertexIndices.add(vertexIndex);
if (tokenizer.nextToken() != '/') {
// f v
tokenizer.pushBack();
} else {
if (tokenizer.nextToken() != '/') {
// f v/vt : read texture coordinate index
tokenizer.pushBack();
int textureCoordinateIndex = parseInteger(tokenizer) - 1;
if (textureCoordinateIndex < 0) {
textureCoordinateIndex += this.textureCoodinates.size() + 1;
}
textureCoordinateIndices.add(textureCoordinateIndex);
tokenizer.nextToken();
}
if (tokenizer.ttype == '/') {
// f v//vn
// or f v/vt/vn : read normal index
int normalIndex = parseInteger(tokenizer) - 1;
if (normalIndex < 0) {
normalIndex += this.normals.size() + 1;
}
normalIndices.add(normalIndex);
} else {
tokenizer.pushBack();
}
}
}
tokenizer.pushBack();
tokenizer.wordChars('/', '/');
if (textureCoordinateIndices.size() != 0
&& textureCoordinateIndices.size() != vertexIndices.size()) {
// Ignore unconsistent texture coordinate
textureCoordinateIndices.clear();
}
if (normalIndices.size() != 0
&& normalIndices.size() != vertexIndices.size()) {
// Ignore unconsistent normals
normalIndices.clear();
}
if (vertexIndices.size() > 2) {
this.currentGroup.addGeometry(new Face(vertexIndices, textureCoordinateIndices, normalIndices,
this.currentMaterial));
}
} else if ("g".equals(tokenizer.sval)
|| "o".equals(tokenizer.sval)) {
// Read group name g name
// or object name o name
boolean smoothingGroup = this.currentGroup.isSmooth();
if (tokenizer.nextToken() == StreamTokenizer.TT_WORD) {
this.currentGroup = this.groups.get(tokenizer.sval);
if (this.currentGroup == null) {
this.currentGroup = new Group(tokenizer.sval);
this.groups.put(this.currentGroup.getName(), this.currentGroup);
}
} else if (tokenizer.ttype == StreamTokenizer.TT_EOL) {
// Use default group
this.currentGroup = this.groups.get("default");
tokenizer.pushBack();
} else {
throw new IncorrectFormatException("Expected group or object name at line " + tokenizer.lineno());
}
this.currentGroup.setSmooth(smoothingGroup);
// Skip other names
while (tokenizer.nextToken() == StreamTokenizer.TT_WORD) {
}
tokenizer.pushBack();
} else if ("s".equals(tokenizer.sval)) {
// Read smoothing group s n
// or s off
if (tokenizer.nextToken() == StreamTokenizer.TT_WORD) {
this.currentGroup.setSmooth(!"off".equals(tokenizer.sval));
} else {
throw new IncorrectFormatException("Expected smoothing group or off at line " + tokenizer.lineno());
}
} else if ("usemtl".equals(tokenizer.sval)) {
// Read the material name usemtl name
if (tokenizer.nextToken() == StreamTokenizer.TT_WORD) {
this.currentMaterial = tokenizer.sval;
} else {
throw new IncorrectFormatException("Expected material name at line " + tokenizer.lineno());
}
} else if ("mtllib".equals(tokenizer.sval)) {
// Read characters following mtllib in case they contain a file name with spaces
tokenizer.wordChars(' ', ' ');
int mtllibToken = tokenizer.nextToken();
String mtllibString = tokenizer.sval.trim();
tokenizer.pushBack();
tokenizer.whitespaceChars(' ', ' ');
// First try to parse space separated library files
int libCount = 0;
do {
if (tokenizer.nextToken() == StreamTokenizer.TT_WORD) {
parseMaterial(tokenizer.sval, baseUrl);
libCount++;
}
}
while (tokenizer.nextToken() != StreamTokenizer.TT_EOL);
if (libCount == 0) {
throw new IncorrectFormatException("Expected material library at line " + tokenizer.lineno());
} else if (mtllibToken == StreamTokenizer.TT_WORD) {
// Even if not in format specifications, give a chance to file names with spaces
parseMaterial(mtllibString, baseUrl);
}
tokenizer.pushBack();
} else {
// Skip other lines (including comment lines starting by #)
int token;
do {
token = tokenizer.nextToken();
} while (token != StreamTokenizer.TT_EOL && token != StreamTokenizer.TT_EOF);
tokenizer.pushBack();
}
int token = tokenizer.nextToken();
if (token != StreamTokenizer.TT_EOL && token != StreamTokenizer.TT_EOF) {
throw new IncorrectFormatException("Expected end of line at line " + tokenizer.lineno());
}
}
/**
* Returns a new tokenizer for an OBJ or MTL stream.
*/
private static StreamTokenizer createTokenizer(Reader reader) {
StreamTokenizer tokenizer = new StreamTokenizer(reader);
tokenizer.resetSyntax();
tokenizer.eolIsSignificant(true);
// All printable ASCII characters
tokenizer.wordChars('!', '~');
// Let's tolerate other ISO-8859-1 characters
tokenizer.wordChars(0x80, 0xFF);
tokenizer.whitespaceChars(' ', ' ');
tokenizer.whitespaceChars('\n', '\n');
tokenizer.whitespaceChars('\r', '\r');
tokenizer.whitespaceChars('\t', '\t');
return tokenizer;
}
/**
* Returns the integer contained in the next token.
*/
private static int parseInteger(StreamTokenizer tokenizer) throws IOException {
if (tokenizer.nextToken() != StreamTokenizer.TT_WORD) {
throw new IncorrectFormatException("Expected an integer at line " + tokenizer.lineno());
} else {
try {
return Integer.parseInt(tokenizer.sval);
} catch (NumberFormatException ex) {
throw new IncorrectFormatException("Found " + tokenizer.sval +
" instead of an integer at line " + tokenizer.lineno());
}
}
}
/**
* Returns the number contained in the next token.
*/
private static float parseNumber(StreamTokenizer tokenizer) throws IOException {
if (tokenizer.nextToken() != StreamTokenizer.TT_WORD) {
throw new IncorrectFormatException("Expected a number at line " + tokenizer.lineno());
} else {
try {
return Float.parseFloat(tokenizer.sval);
} catch (NumberFormatException ex) {
throw new IncorrectFormatException("Found " + tokenizer.sval +
" instead of a number at line " + tokenizer.lineno());
}
}
}
/**
* Skips the back slash in the next token if it's followed by a new line.
*/
private static void skipBackSlash(StreamTokenizer tokenizer) throws IOException {
tokenizer.ordinaryChar('\\');
if (tokenizer.nextToken() == '\\') {
if (tokenizer.nextToken() != StreamTokenizer.TT_EOL) {
throw new IncorrectFormatException("Expected new line after \\ character");
}
} else {
tokenizer.pushBack();
}
tokenizer.wordChars('\\', '\\');
}
/**
* Parses appearances from the given material file and returns <code>true</code> if the file exists.
*/
private boolean parseMaterial(String file, URL baseUrl) {
InputStream in = null;
try {
if (baseUrl != null) {
in = openStream(new URL(baseUrl, file), this.useCaches);
} else {
in = new FileInputStream(file);
}
} catch (IOException ex) {
}
if (in != null) {
try {
this.appearances.putAll(parseMaterialStream(
new BufferedReader(new InputStreamReader(in, "ISO-8859-1")), baseUrl, this.useCaches));
return true;
} catch (IOException ex) {
throw new ParsingErrorException(ex.getMessage());
} finally {
try {
in.close();
} catch (IOException ex) {
throw new ParsingErrorException(ex.getMessage());
}
}
} else {
return false;
}
}
/**
* Parses a map of appearances parsed from the given stream.
*/
private static Map<String, Appearance> parseMaterialStream(Reader reader,
URL baseUrl,
Boolean useCaches) throws IOException {
Map<String, Appearance> appearances = new HashMap<String, Appearance>();
Appearance currentAppearance = null;
StreamTokenizer tokenizer = createTokenizer(reader);
while (tokenizer.nextToken() != StreamTokenizer.TT_EOF) {
switch (tokenizer.ttype) {
case StreamTokenizer.TT_WORD :
currentAppearance = parseMaterialLine(tokenizer,
appearances, currentAppearance, baseUrl, useCaches);
break;
case StreamTokenizer.TT_EOL:
break;
default :
throw new IncorrectFormatException("Unexpected token " + tokenizer.sval
+ " at row " + tokenizer.lineno());
}
}
return appearances;
}
/**
* Parses the line starting with a word describing a material.
*/
private static Appearance parseMaterialLine(StreamTokenizer tokenizer,
Map<String, Appearance> appearances,
Appearance currentAppearance,
URL baseUrl,
Boolean useCaches) throws IOException {
if ("newmtl".equals(tokenizer.sval)) {
// Read material name newmtl name
if (tokenizer.nextToken() == StreamTokenizer.TT_WORD) {
currentAppearance = new Appearance();
appearances.put(tokenizer.sval, currentAppearance);
try {
currentAppearance.setName(tokenizer.sval);
} catch (NoSuchMethodError ex) {
// Don't set name with Java 3D < 1.4
}
} else {
throw new IncorrectFormatException("Expected material name at line " + tokenizer.lineno());
}
} else if ("Ka".equals(tokenizer.sval)) {
// Read ambient color Ka r g b
Color3f ambiantColor = new Color3f(parseNumber(tokenizer),
parseNumber(tokenizer), parseNumber(tokenizer));
if (currentAppearance != null) {
Material material = getMaterial(currentAppearance);
material.setAmbientColor(ambiantColor);
}
} else if ("Kd".equals(tokenizer.sval)) {
// Read diffuse or emissive color Kd r g b
Color3f diffuseColor = new Color3f(parseNumber(tokenizer),
parseNumber(tokenizer), parseNumber(tokenizer));
if (currentAppearance != null) {
OBJMaterial material = getMaterial(currentAppearance);
material.setDiffuseColor(diffuseColor);
currentAppearance.setColoringAttributes(
new ColoringAttributes(diffuseColor, ColoringAttributes.SHADE_GOURAUD));
}
} else if ("Ks".equals(tokenizer.sval)) {
// Read specular color Ks r g b
Color3f specularColor = new Color3f(parseNumber(tokenizer),
parseNumber(tokenizer), parseNumber(tokenizer));
if (currentAppearance != null) {
OBJMaterial material = getMaterial(currentAppearance);
if (!material.isIlluminationModelSet()
|| material.getIlluminationModel() >= 2) {
material.setSpecularColor(specularColor);
} else {
material.setSpecularColor(0, 0, 0);
}
}
} else if ("Ns".equals(tokenizer.sval)) {
// Read shininess Ns val with 0 <= val <= 1000
float shininess = parseNumber(tokenizer);
if (currentAppearance != null) {
OBJMaterial material = getMaterial(currentAppearance);
if (!material.isIlluminationModelSet()
|| material.getIlluminationModel() >= 2) {
// Use shininess at a max value equal to 128
material.setShininess(Math.max(1f, Math.min(shininess, 128f)));
} else {
material.setShininess(1f);
}
}
} else if ("Ni".equals(tokenizer.sval)) {
// Read optical density Ni val
float opticalDensity = parseNumber(tokenizer);
if (currentAppearance != null) {
OBJMaterial material = getMaterial(currentAppearance);
material.setOpticalDensity(opticalDensity);
}
} else if ("sharpness".equals(tokenizer.sval)) {
// Read sharpness sharpness val
float sharpness = parseNumber(tokenizer);
if (currentAppearance != null) {
OBJMaterial material = getMaterial(currentAppearance);
material.setSharpness(sharpness);
}
} else if ("d".equals(tokenizer.sval)) {
// Read transparency d val with 0 <= val <= 1
if (tokenizer.nextToken() == StreamTokenizer.TT_WORD) {
if ("-halo".equals(tokenizer.sval)) {
// Ignore halo transparency
parseNumber(tokenizer);
} else {
tokenizer.pushBack();
float transparency = parseNumber(tokenizer);
if (currentAppearance != null) {
if (transparency >= 1) {
currentAppearance.setTransparencyAttributes(null);
} else {
currentAppearance.setTransparencyAttributes(new TransparencyAttributes(
TransparencyAttributes.NICEST, 1f - Math.max(0f, transparency)));
}
}
}
} else {
throw new IncorrectFormatException("Expected transparency factor at line " + tokenizer.lineno());
}
} else if ("illum".equals(tokenizer.sval)) {
// Read illumination setting illum n
int illumination = parseInteger(tokenizer);
if (currentAppearance != null) {
OBJMaterial material = getMaterial(currentAppearance);
material.setIlluminationModel(illumination);
material.setLightingEnable(illumination >= 1);
if (illumination <= 1) {
material.setSpecularColor(0, 0, 0);
material.setShininess(1f);
}
}
} else if ("map_Kd".equals(tokenizer.sval)) {
// Read material texture map_Kd name
// Search last parameter that matches image file name
String imageFileName = null;
while (tokenizer.nextToken() != StreamTokenizer.TT_EOL) {
if (tokenizer.ttype == StreamTokenizer.TT_WORD) {
imageFileName = tokenizer.sval;
}
}
if (imageFileName != null) {
InputStream in = null;
try {
URL textureImageUrl = baseUrl != null
? new URL(baseUrl, imageFileName)
: new File(imageFileName).toURI().toURL();
in = openStream(textureImageUrl, useCaches);
BufferedImage textureImage = ImageIO.read(in);
if (textureImage != null) {
TextureLoader textureLoader = new TextureLoader(textureImage);
Texture texture = textureLoader.getTexture();
// Keep in user data the URL of the texture image
texture.setUserData(textureImageUrl);
currentAppearance.setTexture(texture);
}
} catch (IOException ex) {
// Ignore images at other format
} catch (RuntimeException ex) {
// Take into account exceptions of Java 3D 1.5 ImageException class
// in such a way program can run in Java 3D 1.3.1
if (ex.getClass().getName().equals("com.sun.j3d.utils.image.ImageException")) {
// Ignore images not supported by TextureLoader
} else {
throw ex;
}
} finally {
if (in != null) {
in.close();
}
}
} else {
throw new IncorrectFormatException("Expected image file name at line " + tokenizer.lineno());
}
tokenizer.pushBack();
} else {
int token;
do {
token = tokenizer.nextToken();
} while (token != StreamTokenizer.TT_EOL && token != StreamTokenizer.TT_EOF);
tokenizer.pushBack();
}
int token = tokenizer.nextToken();
if (token != StreamTokenizer.TT_EOL && token != StreamTokenizer.TT_EOF) {
throw new IncorrectFormatException("Expected end of line at line " + tokenizer.lineno());
}
return currentAppearance;
}
/**
* Returns the material stored in the given <code>appearance</code>.
*/
private static OBJMaterial getMaterial(Appearance appearance) {
OBJMaterial material = (OBJMaterial)appearance.getMaterial();
if (material == null) {
material = new OBJMaterial();
appearance.setMaterial(material);
}
return material;
}
/**
* The coordinates indices of a geometry.
*/
private static abstract class Geometry {
private int [] vertexIndices;
private int [] textureCoordinateIndices;
private String material;
public Geometry(List<Integer> vertexIndices,
List<Integer> textureCoordinateIndices,
String material) {
this.vertexIndices = new int [vertexIndices.size()];
for (int i = 0; i < this.vertexIndices.length; i++) {
this.vertexIndices [i] = vertexIndices.get(i);
}
if (textureCoordinateIndices.size() != 0) {
this.textureCoordinateIndices = new int [textureCoordinateIndices.size()];
for (int i = 0; i < this.textureCoordinateIndices.length; i++) {
this.textureCoordinateIndices [i] = textureCoordinateIndices.get(i);
}
}
this.material = material;
}
public int [] getVertexIndices() {
return this.vertexIndices;
}
public int [] getTextureCoordinateIndices() {
return this.textureCoordinateIndices;
}
public boolean hasTextureCoordinateIndices() {
return this.textureCoordinateIndices != null
&& this.textureCoordinateIndices.length > 0;
}
public String getMaterial() {
return this.material;
}
}
/**
* The coordinates indices of a line.
*/
private static class Line extends Geometry {
public Line(List<Integer> vertexIndices,
List<Integer> textureCoordinateIndices,
String material) {
super(vertexIndices, textureCoordinateIndices, material);
}
}
/**
* The coordinates indices of a face.
*/
private static class Face extends Geometry {
private int [] normalIndices;
public Face(List<Integer> vertexIndices,
List<Integer> textureCoordinateIndices,
List<Integer> normalIndices,
String material) {
super(vertexIndices, textureCoordinateIndices, material);
if (normalIndices.size() != 0) {
this.normalIndices = new int [normalIndices.size()];
for (int i = 0; i < this.normalIndices.length; i++) {
this.normalIndices [i] = normalIndices.get(i);
}
}
}
public int [] getNormalIndices() {
return this.normalIndices;
}
public boolean hasNormalIndices() {
return this.normalIndices != null
&& this.normalIndices.length > 0;
}
}
/**
* A named group of faces.
*/
private static class Group {
private final String name;
private boolean smooth;
private List<Geometry> faces;
public Group(String name) {
this.name = name;
this.faces = new ArrayList<Geometry>();
}
public String getName() {
return this.name;
}
public void setSmooth(boolean smooth) {
this.smooth = smooth;
}
public boolean isSmooth() {
return this.smooth;
}
public void addGeometry(Geometry face) {
this.faces.add(face);
}
public List<Geometry> getGeometry() {
return this.faces;
}
}
}