/** * Make a donation http://sourceforge.net/donate/index.php?group_id=98797 * Microcrowd.com * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Contact Josh DeFord jdeford@microcrowd.com */ package com.microcrowd.loader.java3d.max3ds.chunks; import javax.media.j3d.SpotLight; import javax.media.j3d.Transform3D; import javax.media.j3d.TransformGroup; import javax.vecmath.Point3d; import javax.vecmath.Point3f; import javax.vecmath.Vector3d; import javax.vecmath.Vector3f; import com.microcrowd.loader.java3d.max3ds.ChunkChopper; import com.microcrowd.loader.java3d.max3ds.ChunkMap; /** * SpotLights to be placed in a scene. * * All the default parameters other than * position and direction are used and * not loaded from the 3ds file. */ public class SpotLightChunk extends Chunk { /** * This is called by the chunk chopper before any of the chunk's * subchunks are loaded. Any data loaded that may need to be * used later by superchunks should be stored in * the chunk chopper via {@link ChunkChopper#popData} * * @param chopper the ChunkChopper that will have the light placed in it. */ public void loadData(ChunkChopper chopper) { Point3f target = chopper.getPoint(); float beam = chopper.getFloat(); float falloff = chopper.getFloat(); SpotLight light = new SpotLight(); Vector3f direction = new Vector3f(0,0,-1); Vector3f position = (Vector3f)chopper.popData(ChunkMap.LIGHT); TransformGroup group = chopper.getGroup(); Transform3D transform = new Transform3D(); group.getTransform(transform); transform.lookAt(new Point3d(position), new Point3d(target), new Vector3d(0,1,0)); transform.invert(); transform.setTranslation(position); group.setTransform(transform); chopper.pushData(chopper.getID(), light); chopper.addLightNode(light); } }