Fast simulation of skin sliding

This source preferred by Richard Southern and Jian Jun Zhang

Authors: Yang, X., Southern, R. and Zhang, J.

Journal: Computer Animation and Virtual Worlds

Volume: 20

Issue: 2-3

Pages: 333-342

Publisher: John Wiley and Sons Ltd. Chichester, UK

DOI: 10.1002/cav.292

Skin sliding is the phenomenon of the skin moving over underlying layers of fat, muscle and bone. Due to the complex interconnections between these separate layers and their differing elasticity properties, it is difficult to model and expensive to compute. We present a novel method to simulate this phenomenon at real-time by remeshing the surface based on a parameter space resampling. In order to evaluate the surface parametrization, we borrow a technique from structural engineering known as the force density method (FDM)which solves for an energy minimizing form with a sparse linear system. Our method creates a realistic approximation of skin sliding in real-time, reducing texture distortions in the region of the deformation. In addition it is flexible, simple to use, and can be incorporated into any animation pipeline.

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