Fast simulation of skin sliding

Abstract

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 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. Abstract 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 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.

Real-time variable rigidity texture mapping

“…Yang et al [30] simulate skin sliding by remeshing the surface based on resampling of its parameter space. They use the Force Density Method (FDM) to construct embeddings of original and deformed patches into their parameter domains.…”

Real-time content-aware texturing for deformable surfaces

“…Yang et al [23] simulate skin sliding by remeshing the surface based on resampling of the its parameter space. They use the Force Density Method (FDM) to construct embeddings of original and deformed patches into their parameter domains.…”