Diziol, RaphaelBayer, DanielBender, JanHartmut Prautzsch and Alfred Schmitt and Jan Bender and Matthias Teschner2014-02-012014-02-012009978-3-905673-73-9https://doi.org/10.2312/PE/vriphys/vriphys09/031-037We present a new method for simulating almost incompressible deformable objects. A tetrahedral model is used to represent and restore the volume during the simulation. A new constraint, which computes impulses in the one-ring of each vertex of the tetrahedral model, is used in order to conserve the initial volume. With different parameters, the presented method can handle a large variety of different deformation behaviors, ranging from stiff to large deformations and even plastic deformations. The algorithm is easy to implement and reduces the volume error to less than 1 percent in most situations, even when large deformations are applied.Categories and Subject Descriptors (according to ACM CCS): Computer Graphics [I.3.5]: Computational Geometry and Object Modeling - Physically based modeling, Computer Graphics [I.3.7]: Three-Dimensional Graphics and Realism - Animation