A Novel Approach Makes Higher Order Wavelets Really Efficient for Radiosity
Identifieur interne : 009F45 ( Main/Exploration ); précédent : 009F44; suivant : 009F46A Novel Approach Makes Higher Order Wavelets Really Efficient for Radiosity
Auteurs : François Cuny ; Laurent Alonso ; Nicolas HolzschuchSource :
- Computer Graphics Forum [ 0167-7055 ] ; 2000-09.
Descripteurs français
- mix :
English descriptors
- Teeft :
- Algorithm, Alonso, Basis functions, Blackwell publishers, Control points, Cuny, Eurographics, Eurographics association, Global, Global error, Gouraud shading, Graphics, Haar, Haar wavelets, Hierarchical, Hierarchical radiosity, High precision computations, Higher order wavelets, Holzschuch, Input polygons, Link storage, Lower memory, Lower order wavelets, Memory cost, Memory usage, Novel approach, Oracle, Other patches, Other wavelet bases, Precision computations, Previous implementations, Radiosity, Radiosity algorithm, Radiosity computations, Radiosity function, Radiosity method, Reference solution, Resolution algorithm, Shadow boundaries, Test scenes, Wavelet, Wavelet base, Wavelet bases, Wavelet radiosity, Wavelet radiosity algorithm.
Abstract
Since wavelets were introduced in the radiosity algorithm 5, surprisingly little research has been devoted to higher order wavelets and their use in radiosity algorithms. A previous study 13 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.
Url:
DOI: 10.1111/1467-8659.00402
Affiliations:
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shading</term><term>Graphics</term><term>Haar</term><term>Haar wavelets</term><term>Hierarchical</term><term>Hierarchical radiosity</term><term>High precision computations</term><term>Higher order wavelets</term><term>Holzschuch</term><term>Input polygons</term><term>Link storage</term><term>Lower memory</term><term>Lower order wavelets</term><term>Memory cost</term><term>Memory usage</term><term>Novel approach</term><term>Oracle</term><term>Other patches</term><term>Other wavelet bases</term><term>Precision computations</term><term>Previous implementations</term><term>Radiosity</term><term>Radiosity algorithm</term><term>Radiosity computations</term><term>Radiosity function</term><term>Radiosity method</term><term>Reference solution</term><term>Resolution algorithm</term><term>Shadow boundaries</term><term>Test scenes</term><term>Wavelet</term><term>Wavelet base</term><term>Wavelet bases</term><term>Wavelet radiosity</term><term>Wavelet radiosity algorithm</term></keywords><keywords 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A previous study 13 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). 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