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Hi guys, I have been experiencing some difficulty with the Background Geometry in the 1.2 version of Java3D. Up until the 1.2(x) version of J3D, the background geometry was rendered properly (i.e. rendered at infinity), but ever since I started using J3D 1.2, the geometry is placed at the origin with a radius of 1. The projects that my students have turned in, render properly on j3d 1.1.3 but when ran on a system that has j3d 1.2 are not rendered at infinity. I started using j3d 1.2 ever since it’s Beta 1 release, and when I first ran into this problem, I assumed that my video drivers were causing the problem. When I ran one of the projects on my home PC I realized that the problems are not video driver related mainly because I haven’t changed my drivers within the last few months. After running several tests on 4 different PC’s I have come to the conclusion that J3D 1.2 is causing the problem. When I run the Background Geometry Demo that comes with J3D 1.2 I experience a similar problem (the background geometry is NOT rendered at infinity. You can find this out by running the demo and using Alt+left mouse to move the objects away from you). I tested the same demo with J3D1.1.3 and it rendered fine (when I moved the cubes away from me, they did not go behind the background geometry). The configuration of the 4 different PCs that I tested the 'Background Geometry Demo’ on include: Fx6, 2 different video cards with Gforce chipset, Viper 770. 128MB on PIII 450 on one pc, 768MB ram dual 733s on another, ... . The Gforce card in one of our HP Visualize x-class workstations which is experiencing the problem, is the same card that we had installed in a PII 330 that we used to demo our students’ project at GDC. (These projects all used background geometry and they were rendered properly) Please let me know if this a Bug or if there have been relevant posts that I missed. Thank you, - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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