When I try to add a behavior to a viewpoint transform, I get the following
error:
javax.media.j3d.RestrictedAccessException: Group: only a BranchGroup
node may be added
What exactly must be done to add a behavior to the viewpoint transform? The
following is most of the relevant code for what I am trying to do:
TransformGroup vpTrans;
SimpleUniverse universe = new SimpleUniverse(canvas3D);
universe.getViewingPlatform().setNominalViewingTransform();
universe.addBranchGraph(scene3D);
....
....
vpTrans = universe.getViewingPlatform().getViewPlatformTransform();
CameraBehaviour cameraBehaviour = new CameraBehaviour(vpTrans,20);
cameraBehaviour.setSchedulingBounds(bounds);
vpTrans.addChild(cameraBehaviour);
Thanks,
Dennis Goetz
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