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Wavelet Radiosity on Arbitrary Planar Surfaces

Nicolas Holzschuch 1 François Cuny 1 Laurent Alonso 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 : Wavelet radiosity is, by its nature, restricted to parallelograms or triangles. This paper presents an innovative technique enabling wavelet radiosity computations on planar surfaces of arbitrary shape, including concave contours or contours with holes. This technique replaces the need for triangulating such complicated shapes, greatly reducing the complexity of the wavelet radiosity algorithm and the computation time. It also gives a better approximation of the radiosity function, resulting in better visual results. Our technique works by separating the radiosity function from the surface geometry, extending the radiosity function defined on the original shape onto a simpler domain -- a parallelogram -- better behaved for hierarchical refinement and wavelet computations.
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Submitted on : Tuesday, April 28, 2009 - 3:27:34 PM
Last modification on : Tuesday, May 3, 2022 - 4:52:02 PM
Long-term archiving on: : Monday, April 5, 2010 - 11:16:03 PM


  • HAL Id : inria-00099026, version 1



Nicolas Holzschuch, François Cuny, Laurent Alonso. Wavelet Radiosity on Arbitrary Planar Surfaces. Rendering Techniques 2000 (Eurographics Workshop on Rendering), Jun 2000, Brno, Czech Republic. pp.161-172. ⟨inria-00099026⟩



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