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Cacks
04-13-2006, 09:09 AM
Hi guys,

r OpenGL evaluators accelerated? I've heard that they are not?

Thanks

ZbuffeR
04-13-2006, 09:31 AM
most GLU and GLUT specific stuff is not accelerated.

Cacks
04-13-2006, 09:38 AM
So how are they calculated?

ZbuffeR
04-13-2006, 01:07 PM
Use the source luke ! (http://mesa3d.org/download.html)

V-man
04-13-2006, 09:16 PM
If you mean glMap and glEvalMesh and related functions, these are part of GL and might be accelerated. Last time I tried, the GL evaluators was faster than my code somewhat well written code. Of course, it could have been because they (nVidia, ATI) use SSE and I didn't.

I think that GLU's NURBS use glEvalMesh and such as well.