Volume-preserving Mesh Skinning

We present a straightforward, yet effective approach to volume-preserving mesh skinning. After each skinned mesh deformation, a volume correction is applied which moves the vertices along an automatically constructed displacement field. The volume correction is exact and is computed directly by a closed-form solution. The animator can control the volume correction interactively to achieve custom effects like foldings or muscle bulging. We demonstrate the usability of our approach in several examples, especially the physically plausible deformation of characters. The volume preservation is also able to deal with extreme articulations without distortion artifacts.