Does OpenGL perform Hidden Surface Removal?,
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Posted 20 June 2001 - 01:09 AM
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Edited by - Null and Void on June 20, 2001 8:11:38 AM
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Posted 20 June 2001 - 01:39 AM
It''s called a Zbuffer or depth buffer and it removes hidden surfaces (surfaces behind other surfaces).
Back Face Culling (BFC) is another Hidden Surface Removal (HSR) technic which can be used along with Z-Buffering.
(And you really want to use it, it boost rendering)
BFC is not in a good pipeline position in the current OpenGL pipeline, and you should better do it yourself rather than ask OpenGL to do.
I think that they may/would be extensions to do the tests at a more appropriate place in the pipeline.
-* So many things to do, so little time to spend. *-
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Posted 21 June 2001 - 07:23 PM