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Posted 18 January 2013 - 04:52 AM
See it here: http://http.developer.nvidia.com/GPUGems3/gpugems3_ch11.html
Posted 18 January 2013 - 04:51 AM
I'm not sure if you seen it (of if it's useful) but Game Engine Gems 3 had an article on doing traditional stencil shadows in the geometry shader. Maybe you can modify that?