1 /* 2 * Copyright (c) 2009-2010 jMonkeyEngine 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 package jme3test.collision; 34 35 import com.jme3.collision.CollisionResults; 36 import com.jme3.math.Ray; 37 import com.jme3.math.Vector2f; 38 import com.jme3.math.Vector3f; 39 import com.jme3.renderer.Camera; 40 import com.jme3.scene.Spatial; 41 import java.awt.FlowLayout; 42 import java.awt.image.BufferedImage; 43 import javax.swing.ImageIcon; 44 import javax.swing.JFrame; 45 import javax.swing.JLabel; 46 47 public class RayTrace { 48 49 private BufferedImage image; 50 private Camera cam; 51 private Spatial scene; 52 private CollisionResults results = new CollisionResults(); 53 private JFrame frame; 54 private JLabel label; 55 56 public RayTrace(Spatial scene, Camera cam, int width, int height){ 57 image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); 58 this.scene = scene; 59 this.cam = cam; 60 } 61 62 public void show(){ 63 frame = new JFrame("HDR View"); 64 label = new JLabel(new ImageIcon(image)); 65 frame.getContentPane().add(label); 66 frame.setLayout(new FlowLayout()); 67 frame.pack(); 68 frame.setVisible(true); 69 } 70 71 public void update(){ 72 int w = image.getWidth(); 73 int h = image.getHeight(); 74 75 float wr = (float) cam.getWidth() / image.getWidth(); 76 float hr = (float) cam.getHeight() / image.getHeight(); 77 78 scene.updateGeometricState(); 79 80 for (int y = 0; y < h; y++){ 81 for (int x = 0; x < w; x++){ 82 Vector2f v = new Vector2f(x * wr,y * hr); 83 Vector3f pos = cam.getWorldCoordinates(v, 0.0f); 84 Vector3f dir = cam.getWorldCoordinates(v, 0.3f); 85 dir.subtractLocal(pos).normalizeLocal(); 86 87 Ray r = new Ray(pos, dir); 88 89 results.clear(); 90 scene.collideWith(r, results); 91 if (results.size() > 0){ 92 image.setRGB(x, h - y - 1, 0xFFFFFFFF); 93 }else{ 94 image.setRGB(x, h - y - 1, 0xFF000000); 95 } 96 } 97 } 98 99 label.repaint(); 100 } 101 102 } 103
