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Modélisation et visualisation de phénomènes naturels simulés pas système physique particulaire

Abstract : A natural phenomenon is a set of complex dynamics with various shapes and fickle topology. The movement is due to an intervention, or an internal state, which underlie matter reorganization. CORDIS-ANIMA, a generic modeller and simulator for physical objects, is able to synthesize, with only few parameters, a large variety of phenomena, without a formal knowledge of their physics. With this formalism, we achieve sand to turbulent fluid models. A simulation provides a set of scattered and unorganized points describing the matter flow. Since these points do not lay on the object's surface, the surface rendering is not a trivial operation. We developed construction methods, which generate volumes from partial information coming from the simulation by looking for the lacking information. The study of physical parameters, the description of internal dynamics revealed by the movements of material points, the reproduction of cognitive behaviours that let an observer identify the object form from unorganised points, allowed the development of a set of built-in and rendering methods suited to the types of simulated phenomena.
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Submitted on : Tuesday, February 3, 2004 - 3:25:02 PM
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Claire Guilbaud. Modélisation et visualisation de phénomènes naturels simulés pas système physique particulaire. Modélisation et simulation. Institut National Polytechnique de Grenoble - INPG, 2002. Français. ⟨tel-00004458⟩

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