Efficient Streaming of 3D Scenes with Complex Geometry and Complex Lighting

Romain Pacanowski 1, 2, 3 Mickaël Raynaud 1, 2 Xavier Granier 1, 2 Patrick Reuter 1, 2 Christophe Schlick 1, 2 Pierre Poulin 3
2 IPARLA - Visualization and manipulation of complex data on wireless mobile devices
Université Sciences et Technologies - Bordeaux 1, Inria Bordeaux - Sud-Ouest, École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB), CNRS - Centre National de la Recherche Scientifique : UMR5800
Abstract : Streaming data to efficiently render complex 3D scenes in presence of global illumination is still a challenging task. In this paper, we introduce a new data structure based on a 3D grid of irradiance vectors to store the indirect illumination appearing on complex and detailed objects: the Irradiance Vector Grid (IVG). This representation is independent of the geometric complexity and is suitable for quantization to different quantization schemes. Moreover, its streaming over network involves only a small overhead compared to detailed geometry, and can be achieved independently of the geometry. Furthermore, it can be efficiently rendered using modern graphics hardware. We demonstrate our new data structure in a new remote 3D visualization system, that integrates indirect lighting streaming and progressive transmission of the geometry, and study the impact of different strategies on data transfer.
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Submitted on : Thursday, July 10, 2008 - 12:11:28 PM
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Romain Pacanowski, Mickaël Raynaud, Xavier Granier, Patrick Reuter, Christophe Schlick, et al.. Efficient Streaming of 3D Scenes with Complex Geometry and Complex Lighting. Web3D '08: Proceedings of the 13th international symposium on 3D web technology, Aug 2008, Los Angeles, California, United States. pp.11-17, ⟨10.1145/1394209.1394214⟩. ⟨inria-00294716⟩

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