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+/*
+ * $RCSfile$
+ *
+ * Copyright (c) 2004 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, licensed or
+ * intended for use in the design, construction, operation or
+ * maintenance of any nuclear facility.
+ *
+ * $Revision$
+ * $Date$
+ * $State$
+ */
+
+import com.sun.j3d.utils.image.TextureLoader;
+import com.sun.j3d.utils.geometry.Box;
+import com.sun.j3d.utils.behaviors.vp.*;
+import java.applet.Applet;
+import java.awt.*;
+import java.awt.event.*;
+import com.sun.j3d.utils.applet.MainFrame;
+import com.sun.j3d.utils.universe.*;
+import javax.media.j3d.*;
+import javax.vecmath.*;
+import java.awt.image.BufferedImage;
+
+public class MultiTextureTest extends Applet implements ItemListener{
+
+ Choice choice;
+ TextureUnitState textureUnitState[] = new TextureUnitState[2];
+ Texture stoneTex;
+ Texture skyTex;
+ Texture lightTex;
+
+ private java.net.URL stoneImage = null;
+ private java.net.URL skyImage = null;
+
+ private SimpleUniverse u = null;
+
+ public Texture createLightMap(){
+
+ int width = 128;
+ int height = 128;
+ BufferedImage bimage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+ int [] rgbArray = new int[width * height];
+ int index, index2;
+ int rgbInc = 256 / (width / 2 - 20);
+ int rgbValue = 0;
+ int k = width/2 - 5;
+ int i, j, rgb;
+
+ rgb = 0xff;
+ rgbValue = rgb | (rgb << 8) | (rgb << 16) | (rgb << 24);
+ for ( i = width / 2 - 1, j = 0; j < 10; j++, i--) {
+ rgbArray[i] = rgbValue;
+ }
+
+ for (; i > 8; i--, rgb -= rgbInc) {
+ rgbValue = rgb | (rgb << 8) | (rgb << 16) | (rgb << 24);
+ rgbArray[i] = rgbValue;
+ }
+
+ for (; i >= 0; i--) {
+ rgbArray[i] = rgbValue;
+ }
+
+ for (i = 0; i < width/2; i++) {
+ rgbValue = rgbArray[i];
+ index = i;
+ index2 = (width - i - 1);
+ for (j = 0; j < height; j++) {
+ rgbArray[index] = rgbArray[index2] = rgbValue;
+ index += width;
+ index2 += width;
+ }
+ }
+
+ bimage.setRGB(0, 0, width, height, rgbArray, 0, width);
+
+
+ ImageComponent2D grayImage = new ImageComponent2D(ImageComponent.FORMAT_RGB, bimage);
+
+ lightTex = new Texture2D(Texture.BASE_LEVEL, Texture.RGB, width, height);
+ lightTex.setImage(0, grayImage);
+
+ return lightTex;
+ }
+
+
+ public BranchGroup createSceneGraph() {
+ // Create the root of the branch graph
+ BranchGroup objRoot = new BranchGroup();
+
+ // Create a Transformgroup to scale all objects so they
+ // appear in the scene.
+ TransformGroup objScale = new TransformGroup();
+ Transform3D t3d = new Transform3D();
+ t3d.setScale(0.4);
+ objScale.setTransform(t3d);
+ objRoot.addChild(objScale);
+
+ TransformGroup objTrans = new TransformGroup();
+ //write-enable for behaviors
+ objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
+ objTrans.setCapability( TransformGroup.ALLOW_TRANSFORM_READ );
+ objTrans.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
+ objScale.addChild(objTrans);
+
+ Appearance ap = new Appearance();
+
+ // load textures
+ TextureAttributes texAttr1 = new TextureAttributes();
+ texAttr1.setTextureMode(TextureAttributes.DECAL);
+ TextureAttributes texAttr2 = new TextureAttributes();
+ texAttr2.setTextureMode(TextureAttributes.MODULATE);
+
+ TextureLoader tex = new TextureLoader(stoneImage, new String("RGB"), this);
+ if (tex == null)
+ return null;
+ stoneTex = tex.getTexture();
+
+ tex = new TextureLoader(skyImage, new String("RGB"), this);
+ if (tex == null)
+ return null;
+ skyTex = tex.getTexture();
+
+ lightTex = createLightMap();
+
+
+ textureUnitState[0] = new TextureUnitState(stoneTex, texAttr1, null);
+ textureUnitState[0].setCapability(TextureUnitState.ALLOW_STATE_WRITE);
+
+ textureUnitState[1] = new TextureUnitState(lightTex, texAttr2, null);
+ textureUnitState[1].setCapability(TextureUnitState.ALLOW_STATE_WRITE);
+
+ ap.setTextureUnitState(textureUnitState);
+
+ //Create a Box
+ Box BoxObj = new Box(1.5f, 1.5f, 0.8f, Box.GENERATE_NORMALS |
+ Box.GENERATE_TEXTURE_COORDS, ap, 2);
+ // add it to the scene graph.
+ objTrans.addChild(BoxObj);
+
+ BoundingSphere bounds =
+ new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
+
+ //Shine it with two lights.
+ Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f);
+ Color3f lColor2 = new Color3f(0.2f, 0.2f, 0.1f);
+ Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, -1.0f);
+ Vector3f lDir2 = new Vector3f(0.0f, 0.0f, -1.0f);
+ DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1);
+ DirectionalLight lgt2 = new DirectionalLight(lColor2, lDir2);
+ lgt1.setInfluencingBounds(bounds);
+ lgt2.setInfluencingBounds(bounds);
+ objScale.addChild(lgt1);
+ objScale.addChild(lgt2);
+
+ // Let Java 3D perform optimizations on this scene graph.
+ objRoot.compile();
+
+ return objRoot;
+ }
+
+ public MultiTextureTest (){
+ }
+
+ public MultiTextureTest(java.net.URL stoneURL, java.net.URL skyURL) {
+ stoneImage = stoneURL;
+ skyImage = skyURL;
+ }
+
+ public void init() {
+ if (stoneImage == null) {
+ // the path to the image for an applet
+ try {
+ stoneImage = new java.net.URL(getCodeBase().toString() +
+ "../images/stone.jpg");
+ }
+ catch (java.net.MalformedURLException ex) {
+ System.out.println(ex.getMessage());
+ System.exit(1);
+ }
+ }
+
+ if (skyImage == null) {
+ // the path to the image for an applet
+ try {
+ skyImage = new java.net.URL(getCodeBase().toString() +
+ "../images/bg.jpg");
+ }
+ catch (java.net.MalformedURLException ex) {
+ System.out.println(ex.getMessage());
+ System.exit(1);
+ }
+ }
+
+ setLayout(new BorderLayout());
+ GraphicsConfiguration config =
+ SimpleUniverse.getPreferredConfiguration();
+
+ Canvas3D c = new Canvas3D(config);
+ add("Center", c);
+
+ BranchGroup scene = createSceneGraph();
+ u = new SimpleUniverse(c);
+
+ ViewingPlatform viewingPlatform = u.getViewingPlatform();
+ // This will move the ViewPlatform back a bit so the
+ // objects in the scene can be viewed.
+ viewingPlatform.setNominalViewingTransform();
+
+ // add orbit behavior but disable translate
+ OrbitBehavior orbit =
+ new OrbitBehavior(c, OrbitBehavior.REVERSE_ALL |
+ OrbitBehavior.DISABLE_TRANSLATE);
+ BoundingSphere bounds =
+ new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
+ orbit.setSchedulingBounds(bounds);
+ viewingPlatform.setViewPlatformBehavior(orbit);
+
+ u.addBranchGraph(scene);
+
+ // create the gui
+ choice = new Choice();
+ choice.addItem("stone + light");
+ choice.addItem("stone");
+ choice.addItem("lightMap");
+ choice.addItem("sky");
+ choice.addItem("stone + sky");
+ choice.addItemListener(this);
+ add("North", choice);
+
+ }
+
+ public void destroy() {
+ // Cleanup reference to Java3D
+ textureUnitState = new TextureUnitState[2];
+ u.cleanup();
+ }
+
+ public void itemStateChanged(ItemEvent e)
+ {
+ int index = choice.getSelectedIndex();
+
+ switch (index) {
+ case 0 : /* stone + light */
+ textureUnitState[0].setTexture(stoneTex);
+ textureUnitState[1].setTexture(lightTex);
+ break;
+ case 1 : /* stone */
+ textureUnitState[0].setTexture(stoneTex);
+ textureUnitState[1].setTexture(null);
+ break;
+ case 2 : /* light */
+ textureUnitState[0].setTexture(null);
+ textureUnitState[1].setTexture(lightTex);
+ break;
+ case 3 : /* sky */
+ textureUnitState[0].setTexture(null);
+ textureUnitState[1].setTexture(skyTex);
+ break;
+ case 4 : /* stone + sky */
+ textureUnitState[0].setTexture(stoneTex);
+ textureUnitState[1].setTexture(skyTex);
+ break;
+ default: /* both */
+ break;
+ }
+ }
+
+ public static void main(String argv[])
+ {
+ java.net.URL stoneURL = null;
+ java.net.URL skyURL = null;
+ // the path to the image for an application
+ try {
+ stoneURL = new java.net.URL("file:../images/stone.jpg");
+ skyURL = new java.net.URL("file:../images/bg.jpg");
+ }
+ catch (java.net.MalformedURLException ex) {
+ System.out.println(ex.getMessage());
+ System.exit(1);
+ }
+ new MainFrame(new MultiTextureTest(stoneURL, skyURL), 750, 750);
+ }
+}
+
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