[Papervision3D] Z-fighting/clipping issue with plotting objects on a globe (sphere)
aaron at universaloscillation.com
Thu Jul 2 15:18:22 PDT 2009
I am starting work on a project where objects will be plotted on the earth.
I've put together a quick test and found that when i position objects around
a sphere, I have some clipping problems with the polygons of these objects.
I put together an example to show what I'm talking about:
You can click to change from plotting planes to cubes. I've actually offset
the planes a bit away from the radius of the sphere, but the clipping
problem is still pretty severe. I once encountered something similar in an
OpenGL project and it turned out to be z-fighting and after adjusting the
near clip and far clip distance on my projection matrix, it was fine. I
suspect something like this might be the cause of my problem, but I don't
really understand the inner workings of the Papervision3D transformation
Does anyone know how to get around this? Any tips? Thanks for any help.
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