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Fast Precomputed Ambient Occlusion for Proximity Shadows

Mattias Malmer 1 Fredrik Malmer 1 Ulf Assarsson 2 Nicolas Holzschuch 3
3 ARTIS - Acquisition, representation and transformations for image synthesis
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology
Abstract : Ambient occlusion is used widely for improving the realism of real-time lighting simulations. We present a new method for precomputed ambient occlusion, where we store and retrieve unprocessed ambient occlusion values in a 3D grid. Our method is very easy to implement, has a reasonable memory cost, and the rendering time is independent from the complexity of the occluder or the receiving scene. This makes the algorithm highly suitable for games and other real-time applications.
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Contributor : Nicolas Holzschuch Connect in order to contact the contributor
Submitted on : Tuesday, April 28, 2009 - 6:13:16 PM
Last modification on : Tuesday, October 19, 2021 - 11:13:00 PM
Long-term archiving on: : Thursday, June 10, 2010 - 6:49:52 PM


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Mattias Malmer, Fredrik Malmer, Ulf Assarsson, Nicolas Holzschuch. Fast Precomputed Ambient Occlusion for Proximity Shadows. Journal of graphics tools, A.K. Peters, Ltd., 2007, 12 (2), pp.59-71. ⟨10.1080/2151237X.2007.10129241⟩. ⟨inria-00379385⟩



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