This commit was manufactured by cvs2svn to create tagexp-1_4_0-build3

'exp-1_4_0-build3'.

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+/*
+ * $RCSfile$
+ *
+ * Copyright (c) 2005 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);
+    }
+}