Efficient Glossy Global Illumination with Interactive Viewing

Abstract : The ability to perform interactive walkthroughs of global illumination solutions including glossy effects is a chal-lenging open problem. In this paper we overcome certain limitations of previous approaches. We first introduce a novel, memory- and compute-efficient representation of incoming illumination, in the context of a hierarchical radiance clustering algorithm. We then represent outgoing radiance with an adaptive hierarchical basis, in a man-ner suitable for interactive display. Using appropriate refinement and display strategies, we achieve walkthroughs of glossy solutions at interactive rates for non-trivial scenes. In addition, our implementation has been developed to be portable and easily adaptable as an extension to existing, diffuse-only, hierarchical radiosity systems. We present results of the implementation of glossy global illumination in two independent global illumination systems.
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Marc Stamminger, Annette Scheel, Xavier Granier, Frederic Perez-Cazorla, George Drettakis, et al.. Efficient Glossy Global Illumination with Interactive Viewing. Computer Graphics Forum, Wiley, 2000, 19 (1), pp.13--25. ⟨inria-00509975⟩

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