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Parallax Occlusion Map and floating shadows

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Hi all, I'm a long time reader, first time poster. Anyone try to combine Parallax occlusion mapping (or plain parallax mapping, for that matter) with any kind of shadow mapping algorithm? If you have, you probably noticed that the shadows appear to float above the surface (or at least anywhere where the heightmap != 1.0). Anyway, I came up with a solution to this problem, and figured I should share it with others. Let me know what you think: http://graphicalinsanity.blogspot.com/2008/03/parallax-occlusion-mapping-no-more.html Cheers. -Kamal

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