Hi there, this is more a bug (uglyness) report rather than a request! We had some stability issues with java3d on our ibm laptops and found out that a native code exception occured when drawing spheres. The spheres are generated using the com.sun.j3d.util package. We had problems with some spheres, but not with all. We were (for a moment) unable to track the behavior down to something special. Yesterday I wrote some small method that generate POV-Ray files from certain geometry arrays. For testing I used the sun Sphere. PovRay didn't accept all the produced triangles (with textures) and I had a closer look. Sun produces a TriangleStripArray for the sphere, that includes degenerated triangles (degenerated to a line A-B-A) that finally is responsible for the exception on the ibm. Thus, i wrote my own sphere generator that produces a TriangleStripArray and two TriangleFan arrays for the bottom and top of the sphere. This is more or less a stability issue for the sun guys. I remember i had the same problems with lines in a LineArray that had the length zero. The degenerated objects are not filtered adequately by some OpenGL implementations and seem to cause internal overflows. Cheers, Karsten =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
