Submitted by , posted on 20 February 2003

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My colleague came up with an idea for shadow volume extrusion - if you want to use simplified mesh for the volume and have self-shadowing - extrude the frontfaces, not the backfaces!

The image on the top shows "conventional" shadow volume, where backfaces are extruded. The bottom image has frontfaces extruded.

More on this technique and a small demo is at

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