Using Graphics Hardware to Speed-up Visibility Queries

Nicolas Holzschuch 1, * Laurent Alonso 1, *
* Auteur correspondant
1 ISA - Models, algorithms and geometry for computer graphics and vision
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : We present a visibility method that takes advantage of the graphics hardware to give fast answers to visibility queries. Our visibility method is designed to solve two types of visibility queries: point-based visibility queries, where several visibility queries share the same origin, and plane- based visibility queries, where several visibility queries have their origins on the same plane. Both occur frequently in global illumination algorithms. Combining the speed given by graphics hardware with a software heuristic to avoid reliability problems, our visibility method is signicantly faster than ray-casting, and still gives the same results.
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Journal of graphics tools, A.K. Peters, Ltd., 2000, 5 (2), pp.33-47. 〈http://jgt.akpeters.com/papers/AlonsoHolzschuch00/〉
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https://hal.inria.fr/inria-00509979
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Dernière modification le : mardi 25 octobre 2016 - 16:58:23
Document(s) archivé(s) le : jeudi 30 juin 2011 - 13:21:45

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  • HAL Id : inria-00509979, version 1

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Nicolas Holzschuch, Laurent Alonso. Using Graphics Hardware to Speed-up Visibility Queries. Journal of graphics tools, A.K. Peters, Ltd., 2000, 5 (2), pp.33-47. 〈http://jgt.akpeters.com/papers/AlonsoHolzschuch00/〉. 〈inria-00509979〉

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