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Submitted by Alexander Hornung, posted on June 04, 2003




Image Description, by Alexander Hornung



Some shadowmapping stuff I did to get into DX9/Cg/Shaders. It extends standard shadowmapping by modifying the depth values of pixels in a pixel shader. This enables one to create rather complex looking objects casting complex shadows, which are based on very simple geometry. The image and demo show a simple, textured sphere. The shadow is casted on the floor geometry as well as the inner parts of the sphere-fragments. Tested it only on my NV30, so I cannot guarantee it is running on other hardware.

You can get the demo here:
http://cocoonpage.com/sm/

The demo includes the cg-shader sources.

Thank you,
Alex


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