Help needed to run a Java3D program!

[dinesh Venkatesan]

Hi Friends,

I am new to Java3D programming. Please have a look at the following code.

 
/**
<applet code="Hello3D.class" height=250 width=350>
</applet>
*/
 
 import java.awt.*;
 import java.applet.*;
 import java.awt.event.*;
 import javax.media.j3d.*;
 import javax.vecmath.*;
 import com.sun.j3d.utils.universe.*;
 import com.sun.j3d.utils.geometry.*;
 import com.sun.j3d.utils.applet.MainFrame;
 
 public class Hello3D extends Applet {
   public static void main(String s[]) {
     new MainFrame(new Hello3D(), 640, 480);
   }
 
   public void init() {
     GraphicsConfiguration gc =
     SimpleUniverse.getPreferredConfiguration();
     Canvas3D cv = new Canvas3D(gc);
     setLayout(new BorderLayout());
     add(cv, BorderLayout.CENTER);
     BranchGroup bg = createSceneGraph();
     bg.compile();
     SimpleUniverse su = new SimpleUniverse(cv);
     su.getViewingPlatform().setNominalViewingTransform();
     su.addBranchGraph(bg);
   }
 
   private BranchGroup createSceneGraph() {
     BranchGroup root = new BranchGroup();
     // object
     Appearance ap = new Appearance();
     ap.setMaterial(new Material());
     Font3D font = new Font3D(new Font("SansSerif", Font.PLAIN, 1),
                              new FontExtrusion());
     Text3D text = new Text3D(font, "Hello 3D");
     Shape3D shape = new Shape3D(text, ap);
     // transformation
     Transform3D tr = new Transform3D();
     tr.setScale(0.5);
     tr.setTranslation(new Vector3f(-0.95f, -0.2f, 0f));
     TransformGroup tg = new TransformGroup(tr);
     root.addChild(tg);
     tg.addChild(shape);
     // light
     PointLight light = new PointLight(new Color3f(Color.white),
                                      new Point3f(1f,1f,1f),
                                       new Point3f(1f,0.1f,0f));
     BoundingSphere bounds = new BoundingSphere();
     light.setInfluencingBounds(bounds);
     root.addChild(light);
     return root;
   }
 }

I dont have OpenGL1.2 support. Hence, I tried to run the program like this:

java -Dj3d=d3d Hello3D

I am getting the following exception

Java 3D ERROR : wglGetExtensionsStringARB not support !
 - The specified procedure could not be found.
 
Fallback to use standard ChoosePixelFormat.
Java 3D ERROR : OpenGL 1.2 or better is required (GL_VERSION=1.1)
javax.media.j3d.IllegalRenderingStateException: GL_VERSION
        at javax.media.j3d.NativePipeline.createNewContext(Native Method)
        at javax.media.j3d.NativePipeline.createNewContext(NativePipeline.java:2
681)
        at javax.media.j3d.Canvas3D.createNewContext(Canvas3D.java:4823)
        at javax.media.j3d.Canvas3D.createNewContext(Canvas3D.java:2372)
        at javax.media.j3d.Renderer.doWork(Renderer.java:876)
        at javax.media.j3d.J3dThread.run(J3dThread.java:256)
 
DefaultRenderingErrorListener.errorOccurred:
CONTEXT_CREATION_ERROR: Renderer: Error creating Canvas3D graphics context
graphicsDevice = Win32GraphicsDevice[screen=0]
canvas = javax.media.j3d.Canvas3D[canvas0,0,0,640x480]

Any kind help will be highly appreciated.
Thanks in Advance!!!
dinesh.

[Ulf Dittmer]

The property to set is called j3d.rend, not j3d; see here for details.
[ April 22, 2007: Message edited by: Ulf Dittmer ]

[dinesh Venkatesan]

Thanks Ulf,

Thanks for the information. But I tried to execute in that way. Now, I am getting the following error.

"The dynamic link library d3d9.dll could not be found in the specified path"

Could you help me in resolving this issue?

Thanks in advance!!!
dinesh.

[Ulf Dittmer]

Sounds like Direct3D (possibly version 9) is not installed properly. I have no idea how to check for that or possibly rectify it.

[dinesh Venkatesan]

Thank you very much for pointing out the problem.

Now, I have reinstalled the DirectX 9 and updated it. Now the dll issue is fixed.

But i am getting the following exceptions:

   
Exception in thread "Thread-2" java.lang.NullPointerException: Canvas3D: null GraphicsConfiguration
        at javax.media.j3d.Canvas3D.checkForValidGraphicsConfig(Canvas3D.java:95
4)
        at javax.media.j3d.Canvas3D.<init>(Canvas3D.java:997)
        at Hello3D.init(Hello3D.java:23)
        at com.sun.j3d.utils.applet.MainFrame.run(MainFrame.java:267)
        at java.lang.Thread.run(Unknown Source)

and followed by an error message No compatible device found, please switch to other display mode and try again !

I think i am close to resolving the issues. Can anybody help me in this issue?

regards,
dinesh.