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

Nicolas Holzschuch; Laurent Alonso

Conference Papers Year : 2004

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

(1) , (2)

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Nicolas Holzschuch

Function : Author
PersonId : 502
IdHAL : nicolas-holzschuch
ORCID : 0000-0002-5673-6960
IdRef : 136663982

Acquisition, representation and transformations for image synthesis

Laurent Alonso

Function : Author
PersonId : 830118

Models, algorithms and geometry for computer graphics and vision

Abstract

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.

Keywords

discontinuity meshing maillage de discontinuité ondelettes wavelet radiosité

radiosity

Domains

Other [cs.OH]

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Origin : Files produced by the author(s)

Format : Figure, Image

Nicolas Holzschuch : Connect in order to contact the contributor

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

Submitted on : Monday, November 30, 2009-2:35:45 PM

Last modification on : Thursday, April 4, 2024-8:51:20 PM

Long-term archiving on: Tuesday, April 6, 2010-1:12:17 AM

Dates and versions

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

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HAL Id : inria-00100041 , version 1

Cite

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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