inria-00402067, version 1
Volumetric Billboards
Philippe Decaudin 1, 2Fabrice Neyret
a, 2, 3
Computer Graphics Forum 28, 8 (2009) 2079-2089
Résumé : We introduce an image-based representation, called volumetric billboards, allowing for the real-time rendering of semi-transparent and visually complex objects arbitrarily distributed in a 3D scene. Our representation offers full parallax effect from any viewing direction and improved anti-aliasing of distant objects. It correctly handles transparency between multiple and possibly overlapping objects without requiring any primitive sorting. Furthermore, volumetric billboards can be easily integrated into common rasterization-based renderers, which allows for their concurrent use with polygonal models and standard rendering techniques such as shadow-mapping. The representation is based on volumetric images of the objects and on a dedicated real-time volume rendering algorithm that takes advantage of the GPU geometry shader. Our examples demonstrate the applicability of the method in many cases including levels-of-detail representation for multiple intersecting complex objects, volumetric textures, animated objects and construction of high-resolution objects by assembling instances of lowresolution volumetric billboards.
- a – CNRS
- 1 : EVASION (INRIA Grenoble Rhône-Alpes / LJK Laboratoire Jean Kuntzmann)
- CNRS : UMR5224 – INRIA – Laboratoire Jean Kuntzmann – Institut National Polytechnique de Grenoble (INPG) – Université Joseph Fourier - Grenoble I – Université Pierre Mendès-France - Grenoble II
- 2 : Laboratoire Jean Kuntzmann (LJK)
- CNRS : UMR5224 – Université Joseph Fourier - Grenoble I – Université Pierre Mendès-France - Grenoble II – Institut Polytechnique de Grenoble - Grenoble Institute of Technology
- 3 : ARTIS (INRIA Grenoble Rhône-Alpes / LJK Laboratoire Jean Kuntzmann)
- CNRS : FR71 – INRIA – Laboratoire Jean Kuntzmann – CNRS : UMR5224 – Université Joseph Fourier - Grenoble I – Institut National Polytechnique de Grenoble (INPG)
- Domaine : Informatique/Synthèse d'image et réalité virtuelle
- Mots-clés : image-based rendering – billboards – real-time rendering – geometry shader
- inria-00402067, version 1
- http://hal.inria.fr/inria-00402067
- oai:hal.inria.fr:inria-00402067
- Contributeur : Fabrice Neyret
- Soumis le : Jeudi 28 Avril 2011, 09:12:05
- Dernière modification le : Mardi 10 Mai 2011, 16:09:34














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