Space-time hierarchical radiosity with clustering and higher-order wavelets

Cyrille Damez 1 Nicolas Holzschuch 1 François X. Sillion 1
1 iMAGIS - Models, Algorithms and Geometry for Computer Generated Image Graphics
GRAVIR - IMAG - Graphisme, Vision et Robotique, Inria Grenoble - Rhône-Alpes
Abstract : We address in this paper the issue of computing global illumination solutions for animation sequences. The princi- pal difficulties lie in the computational complexity of global illumination, emphasized by the movement of objects and the large number of frames to compute, as well as the potential for creating temporal discontinuities in the illumination, a particularly dangerous and noticeable artifact. We demonstrate how space-time hierarchical ra- diosity, i.e. the application to the time dimension of a hierarchical decomposition algorithm, can be effectively used to obtain smooth animations: first by proposing the integration of spatial clustering in a space-time hierar- chy; second, by changing the wavelet basis used for the temporal dimension. The resulting algorithm is capable of creating time-dependent radiosity solutions efficiently.
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Conference papers
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https://hal.inria.fr/inria-00441617
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Submitted on : Wednesday, December 16, 2009 - 4:22:28 PM
Last modification on : Thursday, January 11, 2018 - 6:20:04 AM
Long-term archiving on : Thursday, June 17, 2010 - 11:46:34 PM

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Cyrille Damez, Nicolas Holzschuch, François X. Sillion. Space-time hierarchical radiosity with clustering and higher-order wavelets. Eurographics Short Presentations, Sep 2001, Manchester, United Kingdom. ⟨inria-00441617⟩

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