Abstract : This paper presents a real-time method to animate complex scenes of thousands of trees under a user-controllable wind load. Firstly, modal analysis is applied to extract the main modes of deformation from the mechanical model of a 3D tree. The novelty of our contribution is to precompute a new basis of the modal stress of the tree under wind load. At runtime, this basis allows to replace the modal projection of the external forces by a direct mapping for any directional wind. We show that this approach can be efficiently implemented on graphics hardware. This modal animation can be simulated at low computation cost even for large scenes containing thousands of trees.
https://hal.inria.fr/inria-00540761
Contributeur : Team Artis
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Soumis le : lundi 29 novembre 2010 - 11:18:38
Dernière modification le : jeudi 10 mai 2018 - 02:03:43
Document(s) archivé(s) le : samedi 3 décembre 2016 - 00:19:53
