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102 lines
3.5 KiB
102 lines
3.5 KiB
/*
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* Copyright (c) 2009-2010 jMonkeyEngine
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package jme3test.collision;
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import com.jme3.collision.CollisionResults;
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import com.jme3.math.Ray;
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import com.jme3.math.Vector2f;
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import com.jme3.math.Vector3f;
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import com.jme3.renderer.Camera;
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import com.jme3.scene.Spatial;
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import java.awt.FlowLayout;
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import java.awt.image.BufferedImage;
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import javax.swing.ImageIcon;
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import javax.swing.JFrame;
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import javax.swing.JLabel;
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public class RayTrace {
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private BufferedImage image;
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private Camera cam;
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private Spatial scene;
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private CollisionResults results = new CollisionResults();
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private JFrame frame;
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private JLabel label;
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public RayTrace(Spatial scene, Camera cam, int width, int height){
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image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
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this.scene = scene;
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this.cam = cam;
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}
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public void show(){
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frame = new JFrame("HDR View");
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label = new JLabel(new ImageIcon(image));
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frame.getContentPane().add(label);
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frame.setLayout(new FlowLayout());
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frame.pack();
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frame.setVisible(true);
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}
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public void update(){
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int w = image.getWidth();
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int h = image.getHeight();
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float wr = (float) cam.getWidth() / image.getWidth();
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float hr = (float) cam.getHeight() / image.getHeight();
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scene.updateGeometricState();
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for (int y = 0; y < h; y++){
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for (int x = 0; x < w; x++){
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Vector2f v = new Vector2f(x * wr,y * hr);
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Vector3f pos = cam.getWorldCoordinates(v, 0.0f);
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Vector3f dir = cam.getWorldCoordinates(v, 0.3f);
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dir.subtractLocal(pos).normalizeLocal();
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Ray r = new Ray(pos, dir);
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results.clear();
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scene.collideWith(r, results);
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if (results.size() > 0){
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image.setRGB(x, h - y - 1, 0xFFFFFFFF);
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}else{
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image.setRGB(x, h - y - 1, 0xFF000000);
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}
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}
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}
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label.repaint();
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}
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}
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