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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 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.io.*;
+import com.sun.j3d.loaders.objectfile.ObjectFile;
+import com.sun.j3d.loaders.Scene;
+import com.sun.j3d.loaders.ParsingErrorException;
+import com.sun.j3d.loaders.IncorrectFormatException;
+
+public class Morphing extends Applet {
+
+ private java.net.URL[] objFiles = null;
+
+ private SimpleUniverse u = null;
+
+ private 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);
+
+ // Create a bounds for the background and lights
+ BoundingSphere bounds =
+ new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
+
+ // Set up the background
+ Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f);
+ Background bg = new Background(bgColor);
+ bg.setApplicationBounds(bounds);
+ objScale.addChild(bg);
+
+ // Set up the global lights
+ Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f);
+ Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, -1.0f);
+ Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f);
+
+ AmbientLight aLgt = new AmbientLight(alColor);
+ aLgt.setInfluencingBounds(bounds);
+ DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1);
+ lgt1.setInfluencingBounds(bounds);
+ objScale.addChild(aLgt);
+ objScale.addChild(lgt1);
+
+ //
+ // Create the transform group nodes for the 3 original objects
+ // and the morphed object. Add them to the root of the
+ // branch graph.
+ //
+ TransformGroup objTrans[] = new TransformGroup[4];
+
+ for(int i=0; i<4; i++) {
+ objTrans[i] = new TransformGroup();
+ objScale.addChild(objTrans[i]);
+ }
+
+ Transform3D tr = new Transform3D();
+ Transform3D rotX90 = new Transform3D();
+ rotX90.rotX(90.0 * Math.PI / 180.0);
+
+ objTrans[0].getTransform(tr);
+ tr.setTranslation(new Vector3d(-2.0, 1.5, -2.0));
+ tr.mul(rotX90);
+ objTrans[0].setTransform(tr);
+
+ objTrans[1].getTransform(tr);
+ tr.setTranslation(new Vector3d(0.0, 1.5, -2.0));
+ tr.mul(rotX90);
+ objTrans[1].setTransform(tr);
+
+ objTrans[2].getTransform(tr);
+ tr.setTranslation(new Vector3d(2.0, 1.5, -2.0));
+ tr.mul(rotX90);
+ objTrans[2].setTransform(tr);
+
+ objTrans[3].getTransform(tr);
+ tr.setTranslation(new Vector3d(0.0, -2.0, -2.0));
+ tr.mul(rotX90);
+ objTrans[3].setTransform(tr);
+
+
+ // Now load the object files
+ Scene s[] = new Scene[3];
+ GeometryArray g[] = new GeometryArray[3];
+ Shape3D shape[] = new Shape3D[3];
+ ObjectFile loader = new ObjectFile(ObjectFile.RESIZE);
+ for(int i=0; i<3; i++) {
+ s[i] = null;
+ g[i] = null;
+ shape[i] = null;
+ }
+
+ for(int i=0; i<3;i++) {
+ try {
+ s[i] = loader.load(objFiles[i]);
+ }
+ catch (FileNotFoundException e) {
+ System.err.println(e);
+ System.exit(1);
+ }
+ catch (ParsingErrorException e) {
+ System.err.println(e);
+ System.exit(1);
+ }
+ catch (IncorrectFormatException e) {
+ System.err.println(e);
+ System.exit(1);
+ }
+
+ BranchGroup b = s[i].getSceneGroup();
+ shape[i] = (Shape3D) b.getChild(0);
+ g[i] = (GeometryArray) shape[i].getGeometry();
+
+ shape[i].setGeometry(g[i]);
+ objTrans[i].addChild(b);
+ }
+
+ //
+ // Create a Morph node, and set the appearance and input geometry
+ // arrays. Set the Morph node's capability bits to allow the weights
+ // to be modified at runtime.
+ //
+ Appearance app = new Appearance();
+ Color3f objColor = new Color3f(1.0f, 0.7f, 0.8f);
+ Color3f black = new Color3f(0.0f, 0.0f, 0.0f);
+ app.setMaterial(new Material(objColor, black, objColor, black, 80.0f));
+ Morph morph = new Morph(g, app);
+ morph.setCapability(Morph.ALLOW_WEIGHTS_READ);
+ morph.setCapability(Morph.ALLOW_WEIGHTS_WRITE);
+
+ objTrans[3].addChild(morph);
+
+ // Now create the Alpha object that controls the speed of the
+ // morphing operation.
+ Alpha morphAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE |
+ Alpha.DECREASING_ENABLE,
+ 0, 0,
+ 2000, 1000, 200,
+ 2000, 1000, 200);
+
+ // Finally, create the morphing behavior
+ MorphingBehavior mBeh = new MorphingBehavior(morphAlpha, morph);
+ mBeh.setSchedulingBounds(bounds);
+ objScale.addChild(mBeh);
+
+ return objRoot;
+ }
+
+ public Morphing() {}
+
+ public Morphing(java.net.URL[] urls) {
+ objFiles = urls;
+ }
+
+ public void init() {
+ if (objFiles == null) {
+ objFiles = new java.net.URL[3];
+ // the path to the image for an applet
+ String path = getCodeBase().toString();
+ try {
+ objFiles[0] = new java.net.URL(path + "hand1.obj");
+ objFiles[1] = new java.net.URL(path + "hand2.obj");
+ objFiles[2] = new java.net.URL(path + "hand3.obj");
+ }
+ 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);
+
+ // Create a simple scene and attach it to the virtual universe
+ BranchGroup scene = createSceneGraph();
+ u = new SimpleUniverse(c);
+
+ // This will move the ViewPlatform back a bit so the
+ // objects in the scene can be viewed.
+ u.getViewingPlatform().setNominalViewingTransform();
+
+ u.addBranchGraph(scene);
+ }
+
+ public void destroy() {
+ u.cleanup();
+ }
+
+ public static void main(String[] args) {
+ java.net.URL[] urls = new java.net.URL[3];
+ // the path to the image file for an application
+ try {
+ urls[0] = new java.net.URL("file:./hand1.obj");
+ urls[1] = new java.net.URL("file:./hand2.obj");
+ urls[2] = new java.net.URL("file:./hand3.obj");
+ }
+ catch (java.net.MalformedURLException ex) {
+ System.out.println(ex.getMessage());
+ System.exit(1);
+ }
+ new MainFrame(new Morphing(urls), 700, 700);
+ }
+}