A Deferred Shading Pipeline for Real-Time Indirect Illumination

Cyril Soler 1 Olivier Hoel 1 Frank Rochet 2
1 ARTIS - Acquisition, representation and transformations for image synthesis
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, INPG - Institut National Polytechnique de Grenoble
Abstract : We present a deferred shading algorithm for computing screen-space multi-bounce indirect illumination with visibility, in real time. For each frame, we compute mipmapped G-Buffers of depth, normals, illumination and voxelized geometry. To each mipmap level we apply a single shader that gathers screen-space illumination using local Monte-Carlo integration. We upsample the illumination for all levels and smoothly combine them together. Our calculation is approximate but does not show artifacts, because it relies on noise-free Monte-Carlo integration of incoming illumination and temporal filtering. Our method simulates arbitrary distant illumination including visibility at a very low cost, because we only perform local texture lookups during computation. Besides, its deferred shading nature makes it independent of geometric and lighting complexity.
Type de document :
Communication dans un congrès
ACM SIGGRAPH 2010 Talks, Jul 2010, Los Angeles, CA, United States. ACM, pp.18, 2010, <10.1145/1837026.1837049>
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https://hal.inria.fr/inria-00480869
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Soumis le : lundi 15 novembre 2010 - 13:37:55
Dernière modification le : mercredi 14 décembre 2016 - 01:06:24
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Cyril Soler, Olivier Hoel, Frank Rochet. A Deferred Shading Pipeline for Real-Time Indirect Illumination. ACM SIGGRAPH 2010 Talks, Jul 2010, Los Angeles, CA, United States. ACM, pp.18, 2010, <10.1145/1837026.1837049>. <inria-00480869v3>

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