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Kim Anubis
The Magician
Join date: 3 Jun 2004
Posts: 921
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06-06-2006 12:29
Quick question: Is a texture on the back or bottom of a visible prim treated as occluded? In other words, is occlusion culling handled by the prim, or by the prim face? Thanks! 
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Torley Linden
Enlightenment!
Join date: 15 Sep 2004
Posts: 16,530
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06-06-2006 14:59
I'll ask Runitai Linden, culling master, about this... stay tuned!
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Runitai Linden
Linden Lab Employee
Join date: 29 Aug 2005
Posts: 52
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06-06-2006 15:04
Occlusion and frustum culling either cull the entire prim or none of it, but back face culling is on in the renderer so all backfaces (triangles facing away from the camera) are culled automatically by the graphics card to prevent overdraw.
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