Combining Higher-Order Wavelets and Discontinuity Meshing: a Compact Representation for Radiosity

Nicolas Holzschuch; Laurent Alonso

Communication Dans Un Congrès Année : 2004

Combining Higher-Order Wavelets and Discontinuity Meshing: a Compact Representation for Radiosity

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Nicolas Holzschuch

Fonction : Auteur
PersonId : 502
IdHAL : nicolas-holzschuch
ORCID : 0000-0002-5673-6960
IdRef : 136663982

Acquisition, representation and transformations for image synthesis

Laurent Alonso

Fonction : Auteur
PersonId : 830118

Models, algorithms and geometry for computer graphics and vision

Résumé

The radiosity method is used for global illumination simulation in diffuse scenes, or as an intermediate step in other methods. Radiosity computations using Higher-Order wavelets achieve a compact representation of the illumination on many parts of the scene, but are more expensive near discontinuities, such as shadow boundaries. Other methods use a mesh, based on the set of discontinuities of the illumination function. The complexity of this set of discontinuities has so far proven prohibitive for large scenes, mostly because of the difficulty to robustly manage a geometrically complex set of triangles. In this paper, we present a method for computing radiosity that uses higher-order wavelet functions as a basis, and introduces discontinuities only when they simplify the resulting mesh. The result is displayed directly, without post-processing.

Mots clés

discontinuity meshing maillage de discontinuité ondelettes wavelet radiosité

radiosity

Domaines

Autre [cs.OH]

Fichier principal

Electronic.pdf (8.01 Mo)

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Origine : Fichiers produits par l'(les) auteur(s)

Format : Figure, Image

Nicolas Holzschuch : Connectez-vous pour contacter le contributeur

https://inria.hal.science/inria-00100041

Soumis le : lundi 30 novembre 2009-14:35:45

Dernière modification le : jeudi 4 avril 2024-20:51:20

Archivage à long terme le : mardi 6 avril 2010-01:12:17

Dates et versions

inria-00100041 , version 1 (30-11-2009)

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HAL Id : inria-00100041 , version 1

Citer

Nicolas Holzschuch, Laurent Alonso. Combining Higher-Order Wavelets and Discontinuity Meshing: a Compact Representation for Radiosity. Eurographics Symposium on Rendering 2004 - EGSR 2004, Jun 2004, Norrköping, Sweden. pp.275-286. ⟨inria-00100041⟩

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Combining Higher-Order Wavelets and Discontinuity Meshing: a Compact Representation for Radiosity

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