Occlusion Culling Techniques.

HolyGrenade

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Feb 8, 2001
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Can anybody (Warded/Teasy/Noko) or anybody else point me to any information on the occlusion culling and differred rendering techniques used by the IMGTEC TBR, Gigapixel TBR, ATI Hyper-Z, and the nVidia HSR.

Do you know if the current cards perform the HSR only while applying textures and renderring the pixels or is it performed before building the scene i.e. processing the geometry?

Also, do you know which algorythm(s) is used by each of the cards?


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noko

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Jan 22, 2001
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Radeon culling methods can be found in the following SDK:

<A HREF="http://www.ati.com/na/pages/resource_centre/dev_rel/sdk/RadeonSDK/Html/Samples/Direct3D/RadeonTerrainDemo.html" target="_new">http://www.ati.com/na/pages/resource_centre/dev_rel/sdk/RadeonSDK/Html/Samples/Direct3D/RadeonTerrainDemo.html</A>

This is a demo using Millions of polygons dumped to the graphics card where optimize algorythms have to be used to render the images.

<P ID="edit"><FONT SIZE=-1><EM>Edited by noko on 05/07/01 04:29 AM.</EM></FONT></P>