Interactive visualization of complex virtual environments, through networks and devices of variable performance

2001-2004
PhD student.
Funding: INRIA/Region/V2NET.

Abstract: Solutions dedicated to remote visualisation of virtual environnements are multiple. They are most often dedicated to specific problems and the different architectures that are proposed are rarely used jointly. Our solution, Magellan, provides a framework as well as a generic distributed application that allows, thanks to a component approach, the integration of these solutions. It allows the user to develop freely, for its component, the streaming modes, the distributions of the states and execution schemas as well as the adaptive rendering mode. We then propose a streaming solution dedicated to remote visualisation of architectural and urban sceneries. We finally present two new local optimisations : the first one handles the adaptive management of progressive texture maps and the other one makes use of procedural geometric models to optimize the remote visualisation of large urban models.

2000-2001
MsC student.
Visibility guided architectural streaming. Development of space subdivision methods and visibility processing technics to perform indoor architectural scene structuration. The resulting scene structure was then exploited to perform on-demand streaming of the scene according to viewpoint moves. Some pre-fetching technics were also experimented. This works led to the foundations of my PhD researches.

Publications

. The FL-system: A Functional L-system for procedural geometric modeling. In The Visual Computer, online first issue. Springer., 2005.

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. A Vrml97-X3D Extension for Massive Scenery Management in Virtual Worlds. In proceedings of the ninth international conference on 3D Web technology, pages 145-153. ACM SIGGRAPH. Monterey Ca.USA, 2004.

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. Remote Rendering of Massively Textured 3D Scenes Through Progressive Texture Maps. In proceedings of the third IASTED conference on Visualisation Imaging and Image Processing, pages 756-761. ACTA Press. Benalmadeña Spain, 2003.

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. Remote Interactive Walkthrough of City Models. In proceedings of Pacific Graphics, pages 389-393. IEEE Computer Society. Canmore Canada. Short paper., 2003.

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. Remote Interactive Walkthrough of City Models using Procedural Geometry. INRIA. July 2003. Rennes. Research Report RR-4885., 2003.

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