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/*
* Copyright (c) 2009-2010 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions 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 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package jme3test.collision;
import com.jme3.collision.CollisionResults;
import com.jme3.math.Ray;
import com.jme3.math.Vector2f;
import com.jme3.math.Vector3f;
import com.jme3.renderer.Camera;
import com.jme3.scene.Spatial;
import java.awt.FlowLayout;
import java.awt.image.BufferedImage;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class RayTrace {
private BufferedImage image;
private Camera cam;
private Spatial scene;
private CollisionResults results = new CollisionResults();
private JFrame frame;
private JLabel label;
public RayTrace(Spatial scene, Camera cam, int width, int height){
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
this.scene = scene;
this.cam = cam;
}
public void show(){
frame = new JFrame("HDR View");
label = new JLabel(new ImageIcon(image));
frame.getContentPane().add(label);
frame.setLayout(new FlowLayout());
frame.pack();
frame.setVisible(true);
}
public void update(){
int w = image.getWidth();
int h = image.getHeight();
float wr = (float) cam.getWidth() / image.getWidth();
float hr = (float) cam.getHeight() / image.getHeight();
scene.updateGeometricState();
for (int y = 0; y < h; y++){
for (int x = 0; x < w; x++){
Vector2f v = new Vector2f(x * wr,y * hr);
Vector3f pos = cam.getWorldCoordinates(v, 0.0f);
Vector3f dir = cam.getWorldCoordinates(v, 0.3f);
dir.subtractLocal(pos).normalizeLocal();
Ray r = new Ray(pos, dir);
results.clear();
scene.collideWith(r, results);
if (results.size() > 0){
image.setRGB(x, h - y - 1, 0xFFFFFFFF);
}else{
image.setRGB(x, h - y - 1, 0xFF000000);
}
}
}
label.repaint();
}
}
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