A novel approach makes higher order wavelets really efficient for radiosity

François Cuny 1 Laurent Alonso 1 Nicolas Holzschuch 1
1 ISA - Models, algorithms and geometry for computer graphics and vision
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : Since wavelets were introduced in the radiosity algorithm, surprisingly little research has been devoted to higher order wavelets and their use in radiosity algorithms. A previous study has shown that wavelet radiosity, and especially higher order wavelet radiosity was not bringing significant improvements over hierarchical radiosity and was having a very important extra memory cost, thus prohibiting any effective computation. In this paper, we present a new implementation of wavelets in the radiosity algorithm, that is substantially different from previous implementations in several key areas (refinement oracle, link storage, resolution algorithm). We show that, with this implementation, higher order wavelets are actually bringing an improvement over standard hierarchical radiosity and lower order wavelets.
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François Cuny, Laurent Alonso, Nicolas Holzschuch. A novel approach makes higher order wavelets really efficient for radiosity. Computer Graphics Forum, Wiley, 2000, 19 (3), pp.C99-108. ⟨http://www.eg.org/EG/CGF/Volume19/Issue3/402.pdf⟩. ⟨10.1111/1467-8659.00402⟩. ⟨inria-00099344⟩

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