Animating Shapes at Arbitrary Resolution with Non-Uniform Stiffness

Nesme, Matthieu; Payan, Yohan; Faure, François

Animating Shapes at Arbitrary Resolution with Non-Uniform Stiffness

Files

017-024.pdf (5.02 MB)

Date

2006

Authors

Nesme, Matthieu
Payan, Yohan
Faure, François

Publisher

The Eurographics Association

Abstract

We present a new method for physically animating deformable shapes using finite element models (FEM). Contrary to commonly used methods based on tetrahedra, our finite elements are the bounding voxels of a given shape at arbitrary resolution. This alleviates the complexities and limitations of tetrahedral volume meshing and results in regular, well-conditionned meshes. We show how to build the voxels and how to set the masses and stiffnesses in order to model the physical properties as accurately as possible at any given resolution. Additionally, we extend a fast and robust tetrahedron-FEM approach to the case of hexahedral elements. This permits simulation of arbitrarily complex shapes at interactive rates in a manner that takes into account the distribution of material within the elements.

        @inproceedings{:10.2312/PE/vriphys/vriphys06/017-024
,
booktitle = {Vriphys: 3rd Workshop in Virtual Realitiy, Interactions, and Physical Simulation
},
editor = {Cesar Mendoza and Isabel Navazo
},
title = {{Animating Shapes at Arbitrary Resolution with Non-Uniform Stiffness
}},
author = {Nesme, Matthieu and 
Payan, Yohan and 
Faure, François
},
year = {2006
},
publisher = {The Eurographics Association
},
ISBN = {3-905673-61-4
},
DOI = {/10.2312/PE/vriphys/vriphys06/017-024
}
}