Raphael Diziol, Jan Bender and Daniel Bayer, Volume Conserving Simulation of Deformable Bodies, Short Paper Proceedings of Eurographics, Munich, March 2009

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Abstract

We present a new method for simulating volume conserving deformable bodies using an impulse-based approach. In order to simulate a deformable body a tetrahedral model is generated from an arbitrary triangle mesh. All resulting tetrahedrons are assigned to volume constraints which ensure the conservation of the total volume. For the simulation of such a constraint impulses are computed and applied to the particles of the assigned tetrahedrons. The algorithm is easy to implement and ensures exact volume conservation in each simulation step.

Deformable body 1

Deformable body with strong springs (Mpeg)

Deformable body 2

Deformable body with weak springs (Mpeg)