/* * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * - Redistribution of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistribution in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Sun Microsystems, Inc. or the names of * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed or intended for use * in the design, construction, operation or maintenance of any nuclear * facility. * * Sun gratefully acknowledges that this software was originally authored * and developed by Kenneth Bradley Russell and Christopher John Kline. */ package demos.util; import java.io.*; import javax.media.opengl.*; /** Renders a bunny. <P> This file was produced by 3D Exploration Plugin: CPP Export filter. <P> 3D Exploration <P> Copyright (c) 1999-2000 X Dimension Software <P>WWW http://www.xdsoft.com/explorer/ <BR> eMail info@xdsoft.com */ public class Bunny { /** Generates and returns a display list for the bunny model. */ public static int gen3DObjectList(GL gl) throws IOException { StreamTokenizer tok = new StreamTokenizer(new BufferedReader(new InputStreamReader( Bunny.class.getClassLoader().getResourceAsStream("demos/data/models/bunny.txt")))); // Reset tokenizer's syntax so numbers are not parsed tok.resetSyntax(); tok.wordChars('a', 'z'); tok.wordChars('A', 'Z'); tok.wordChars('0', '9'); tok.wordChars('-', '-'); tok.wordChars('.', '.'); tok.wordChars(128 + 32, 255); tok.whitespaceChars(0, ' '); tok.whitespaceChars(',', ','); tok.whitespaceChars('{', '{'); tok.whitespaceChars('}', '}'); tok.commentChar('/'); tok.quoteChar('"'); tok.quoteChar('\''); tok.slashSlashComments(true); tok.slashStarComments(true); // Read in file int numFaceIndices = nextInt(tok, "number of face indices"); short[] faceIndices = new short[numFaceIndices * 6]; for (int i = 0; i < numFaceIndices * 6; i++) { faceIndices[i] = (short) nextInt(tok, "face index"); } int numVertices = nextInt(tok, "number of vertices"); float[] vertices = new float[numVertices * 3]; for (int i = 0; i < numVertices * 3; i++) { vertices[i] = nextFloat(tok, "vertex"); } int numNormals = nextInt(tok, "number of normals"); float[] normals = new float[numNormals * 3]; for (int i = 0; i < numNormals * 3; i++) { normals[i] = nextFloat(tok, "normal"); } int lid = gl.glGenLists(1); gl.glNewList(lid, GL.GL_COMPILE); gl.glBegin(GL.GL_TRIANGLES); for (int i = 0; i < faceIndices.length; i += 6) { for (int j = 0; j < 3; j++) { int vi = faceIndices[i + j]; int ni = faceIndices[i + j + 3]; gl.glNormal3f(normals[3 * ni], normals[3 * ni + 1], normals[3 * ni + 2]); gl.glVertex3f(vertices[3 * vi], vertices[3 * vi + 1], vertices[3 * vi + 2]); } } gl.glEnd(); gl.glEndList(); return lid; } private static int nextInt(StreamTokenizer tok, String error) throws IOException { if (tok.nextToken() != StreamTokenizer.TT_WORD) { throw new IOException("Parse error reading " + error + " at line " + tok.lineno()); } try { return Integer.parseInt(tok.sval); } catch (NumberFormatException e) { throw new IOException("Parse error reading " + error + " at line " + tok.lineno()); } } private static float nextFloat(StreamTokenizer tok, String error) throws IOException { if (tok.nextToken() != StreamTokenizer.TT_WORD) { throw new IOException("Parse error reading " + error + " at line " + tok.lineno()); } try { return Float.parseFloat(tok.sval); } catch (NumberFormatException e) { throw new IOException("Parse error reading " + error + " at line " + tok.lineno()); } } }