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-/*
- * $RCSfile$
- *
- * Copyright (c) 2006 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.io.*;
-import com.sun.j3d.utils.applet.MainFrame;
-import com.sun.j3d.utils.geometry.Sphere;
-import com.sun.j3d.utils.shader.StringIO;
-import com.sun.j3d.utils.universe.*;
-import javax.media.j3d.*;
-import javax.vecmath.*;
-import java.util.Enumeration;
-import java.net.URL;
-import java.net.MalformedURLException;
-
-/**
- * Simple CG Shader test program
- */
-public class SphereCg extends Applet {
-
- // Constants for type of light to use
- private static final int DIRECTIONAL_LIGHT = 0;
- private static final int POINT_LIGHT = 1;
- private static final int SPOT_LIGHT = 2;
-
- // Flag indicates type of lights: directional, point, or spot
- // lights. This flag is set based on command line argument
- private static int lightType = DIRECTIONAL_LIGHT;
-
- private SimpleUniverse u = null;
-
- public BranchGroup createSceneGraph(SimpleUniverse u) {
- Color3f eColor = new Color3f(0.0f, 0.0f, 0.0f);
- Color3f sColor = new Color3f(1.0f, 1.0f, 1.0f);
- Color3f objColor = new Color3f(0.6f, 0.6f, 0.6f);
- Color3f lColor1 = new Color3f(1.0f, 0.0f, 0.0f);
- Color3f lColor2 = new Color3f(0.0f, 1.0f, 0.0f);
- Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f);
- Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f);
-
- Transform3D t;
-
- // 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
- Background bg = new Background(bgColor);
- bg.setApplicationBounds(bounds);
- objScale.addChild(bg);
-
- // Create a Sphere object, generate one copy of the sphere,
- // and add it into the scene graph.
- ShaderAppearance a = new ShaderAppearance();
- Material m = new Material(objColor, eColor, objColor, sColor, 100.0f);
- m.setLightingEnable(true);
- Texture t2d = new Texture2D();
- a.setTexture(t2d);
- a.setCapability(Appearance.ALLOW_TEXTURE_WRITE);
-
- String vertexProgram = null;
- String fragmentProgram = null;
- try {
- vertexProgram = StringIO.readFully("./simple_vp.cg");
- fragmentProgram = StringIO.readFully("./simple_fp.cg");
- }
- catch (IOException e) {
- e.printStackTrace();
- System.exit(1);
- }
- Shader[] shaders = new Shader[2];
- shaders[0] = new SourceCodeShader(Shader.SHADING_LANGUAGE_CG,
- Shader.SHADER_TYPE_VERTEX,
- vertexProgram);
- shaders[1] = new SourceCodeShader(Shader.SHADING_LANGUAGE_CG,
- Shader.SHADER_TYPE_FRAGMENT,
- fragmentProgram);
- ShaderProgram shaderProgram = new CgShaderProgram();
- shaderProgram.setShaders(shaders);
-
- a.setShaderProgram(shaderProgram);
- a.setMaterial(m);
- Sphere sph = new Sphere(1.0f, Sphere.GENERATE_NORMALS, 200, a);
- objScale.addChild(sph);
-
- // Create the transform group node for the each light and initialize
- // it to the identity. Enable the TRANSFORM_WRITE capability so that
- // our behavior code can modify it at runtime. Add them to the root
- // of the subgraph.
- TransformGroup l1RotTrans = new TransformGroup();
- l1RotTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
- objScale.addChild(l1RotTrans);
-
- TransformGroup l2RotTrans = new TransformGroup();
- l2RotTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
- objScale.addChild(l2RotTrans);
-
- // Create transformations for the positional lights
- t = new Transform3D();
- Vector3d lPos1 = new Vector3d(0.0, 0.0, 2.0);
- t.set(lPos1);
- TransformGroup l1Trans = new TransformGroup(t);
- l1RotTrans.addChild(l1Trans);
-
- t = new Transform3D();
- Vector3d lPos2 = new Vector3d(0.5, 0.8, 2.0);
- t.set(lPos2);
- TransformGroup l2Trans = new TransformGroup(t);
- l2RotTrans.addChild(l2Trans);
-
- /*
- // Create Geometry for point lights
- ColoringAttributes caL1 = new ColoringAttributes();
- ColoringAttributes caL2 = new ColoringAttributes();
- caL1.setColor(lColor1);
- caL2.setColor(lColor2);
- Appearance appL1 = new Appearance();
- Appearance appL2 = new Appearance();
- appL1.setColoringAttributes(caL1);
- appL2.setColoringAttributes(caL2);
- l1Trans.addChild(new Sphere(0.05f, appL1));
- l2Trans.addChild(new Sphere(0.05f, appL2));
- */
-
- // Create lights
- AmbientLight aLgt = new AmbientLight(alColor);
-
- Light lgt1 = null;
- Light lgt2 = null;
-
- Point3f lPoint = new Point3f(0.0f, 0.0f, 0.0f);
- Point3f atten = new Point3f(1.0f, 0.0f, 0.0f);
- Vector3f lDirect1 = new Vector3f(lPos1);
- Vector3f lDirect2 = new Vector3f(lPos2);
- lDirect1.negate();
- lDirect2.negate();
-
- switch (lightType) {
- case DIRECTIONAL_LIGHT:
- lgt1 = new DirectionalLight(lColor1, lDirect1);
- lgt2 = new DirectionalLight(lColor2, lDirect2);
- break;
- case POINT_LIGHT:
- lgt1 = new PointLight(lColor1, lPoint, atten);
- lgt2 = new PointLight(lColor2, lPoint, atten);
- break;
- case SPOT_LIGHT:
- lgt1 = new SpotLight(lColor1, lPoint, atten, lDirect1,
- 25.0f * (float)Math.PI / 180.0f, 10.0f);
- lgt2 = new SpotLight(lColor2, lPoint, atten, lDirect2,
- 25.0f * (float)Math.PI / 180.0f, 10.0f);
- break;
- }
-
- // Set the influencing bounds
- aLgt.setInfluencingBounds(bounds);
- lgt1.setInfluencingBounds(bounds);
- lgt2.setInfluencingBounds(bounds);
-
- // Add the lights into the scene graph
- objScale.addChild(aLgt);
- l1Trans.addChild(lgt1);
- l2Trans.addChild(lgt2);
-
- // Create a new Behavior object that will perform the desired
- // operation on the specified transform object and add it into the
- // scene graph.
- Transform3D yAxis = new Transform3D();
- Alpha rotor1Alpha = new Alpha(-1, Alpha.INCREASING_ENABLE,
- 0, 0,
- 4000, 0, 0,
- 0, 0, 0);
- RotationInterpolator rotator1 =
- new RotationInterpolator(rotor1Alpha,
- l1RotTrans,
- yAxis,
- 0.0f, (float) Math.PI*2.0f);
- rotator1.setSchedulingBounds(bounds);
- l1RotTrans.addChild(rotator1);
-
- // Create a new Behavior object that will perform the desired
- // operation on the specified transform object and add it into the
- // scene graph.
- Alpha rotor2Alpha = new Alpha(-1, Alpha.INCREASING_ENABLE,
- 0, 0,
- 1000, 0, 0,
- 0, 0, 0);
- RotationInterpolator rotator2 =
- new RotationInterpolator(rotor2Alpha,
- l2RotTrans,
- yAxis,
- 0.0f, 0.0f);
- bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
- rotator2.setSchedulingBounds(bounds);
- l2RotTrans.addChild(rotator2);
-
- // Create a position interpolator and attach it to the view
- // platform
- TransformGroup vpTrans =
- u.getViewingPlatform().getViewPlatformTransform();
- Transform3D axisOfTranslation = new Transform3D();
- Alpha transAlpha = new Alpha(-1,
- Alpha.INCREASING_ENABLE |
- Alpha.DECREASING_ENABLE,
- 0, 0,
- 5000, 0, 0,
- 5000, 0, 0);
- axisOfTranslation.rotY(-Math.PI/2.0);
- PositionInterpolator translator =
- new PositionInterpolator(transAlpha,
- vpTrans,
- axisOfTranslation,
- 2.0f, 3.5f);
- translator.setSchedulingBounds(bounds);
- objScale.addChild(translator);
-
- // Let Java 3D perform optimizations on this scene graph.
- objRoot.compile();
-
- return objRoot;
- }
-
- public SphereCg() {
- }
-
- public void init() {
- setLayout(new BorderLayout());
- GraphicsConfiguration config =
- SimpleUniverse.getPreferredConfiguration();
-
- Canvas3D c = new Canvas3D(config);
- add("Center", c);
-
- u = new SimpleUniverse(c);
- BranchGroup scene = createSceneGraph(u);
-
- // This will move the ViewPlatform back a bit so the
- // objects in the scene can be viewed.
- u.getViewingPlatform().setNominalViewingTransform();
-
- /*
- // Limit the frame rate to 100 Hz
- u.getViewer().getView().setMinimumFrameCycleTime(10);
- */
-
- u.addBranchGraph(scene);
- }
-
- public void destroy() {
- u.cleanup();
- }
-
- //
- // The following allows SphereCg to be run as an application
- // as well as an applet
- //
- public static void main(String[] args) {
- // Parse the Input Arguments
- String usage = "Usage: java SphereCg [-point | -spot | -dir]";
- for (int i = 0; i < args.length; i++) {
- if (args[i].startsWith("-")) {
- if (args[i].equals("-point")) {
- /*
- System.out.println("Using point lights");
- lightType = POINT_LIGHT;
- */
- System.out.println("Point lights not yet implemented, option ignored");
- }
- else if (args[i].equals("-spot")) {
- /*
- System.out.println("Using spot lights");
- lightType = SPOT_LIGHT;
- */
- System.out.println("Spot lights not yet implemented, option ignored");
- }
- else if (args[i].equals("-dir")) {
- System.out.println("Using directional lights");
- lightType = DIRECTIONAL_LIGHT;
- }
- else {
- System.out.println(usage);
- System.exit(0);
- }
- }
- else {
- System.out.println(usage);
- System.exit(0);
- }
- }
-
- new MainFrame(new SphereCg(), 700, 700);
- }
-}
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