[JAVA3D] vrml loader

[Desiree Hilbring]

Hi,
I downloaded the x3d.jar and included a vrml loader in my
application. Then I tried to read some wrl files.
It is quitting every time, the loader is trying to read an image with:

E:/vrml/claddingpanel.wrl
Error: in loading image
Exception: java.lang.NullPointerException
Last token was "}" at line 1786
java.lang.NullPointerException
        at
com.sun.j3d.utils.image.TextureLoader.getTexture(TextureLoader.java:4
06)
        at
com.sun.j3d.loaders.vrml97.impl.ImageTexture.doChangeUrl(ImageTexture
.java:138)
        at
com.sun.j3d.loaders.vrml97.impl.ImageTexture.initImpl(ImageTexture.ja
va:78)
        at com.sun.j3d.loaders.vrml97.impl.Parser.Node(Parser.java:527)
...

or sometimes with other errors

What is the problem?

Is there a tutorial how to use the x3d.jar package?

I did manage to see some simple objects like a box.


This is my class which is loading the wrl-file:

public class VrmlViewer {
    Layer3D layer3d;


    public VrmlViewer(String urlName) {
        layer3d = new Layer3D();
        VrmlLoader vrml = new VrmlLoader();
        try {
            Scene sc = vrml.load(urlName);
            layer3d.addVrmlScene(sc.getSceneGroup());
        }
        catch (FileNotFoundException ex) {
            System.err.println("File not found: "+ ex.getMessage());
        }
    }

    public Layer3D createLayer3D() {
        return layer3d;
    }

}

Here I am adding the BranchGroup from the VrmlScene in my
Java3D-Scenegraph:

  public void addVrmlScene(BranchGroup bg) {
        layertrans.addChild(bg);
    }

Thanks for any help, Desiree





o------------------------------------------------------------------------o
| Desiree Hilbring      Institut fuer Photogrammetrie und Fernerkundung  |
|                       Universitaet Karlsruhe, Germany                  |
|                                                                        |
|                       email: [EMAIL PROTECTED]             |
|                       # 0721 6083676                                   |
o------------------------------------------------------------------------o

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