Skeleton driven limb animation based on three-layered structure

Authors:
Jiarong Yu;Jiaoying Shi;Yongxia Zhou
Affiliations:
State Key Lab of CAD&CG, Zhejiang University, Hangzhou, China;State Key Lab of CAD&CG, Zhejiang University, Hangzhou, China;State Key Lab of CAD&CG, Zhejiang University, Hangzhou, China
Venue:
AI'05 Proceedings of the 18th Australian Joint conference on Advances in Artificial Intelligence
Year:
2005

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Abstract

In this paper, we present a new model for the skeleton driven limb animation, which is composed of three layers: linear bones, volumetric bones and coarse volumetric control lattice. Volumetric bones are driven by linear bones using geometric method and the coarse volumetric control lattice is driven by volumetric bones using finite element method. In order to compute faster, we perform linearized simulations. The limb is embedded in the volumetric control lattice, and the surface of limb is computed using linear interpolation method. PCG solver is used to solve the large linear system of equations. We can obtain realtime simulations and realize the motions such as bend and torsion of limb.