Simulation and control of skeleton-driven soft body characters

  • Authors:
  • Libin Liu;KangKang Yin;Bin Wang;Baining Guo

  • Affiliations:
  • Tsinghua University;National University of Singapore;National University of Singapore;Microsoft Research Asia

  • Venue:
  • ACM Transactions on Graphics (TOG)
  • Year:
  • 2013

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Abstract

In this paper we present a physics-based framework for simulation and control of human-like skeleton-driven soft body characters. We couple the skeleton dynamics and the soft body dynamics to enable two-way interactions between the skeleton, the skin geometry, and the environment. We propose a novel pose-based plasticity model that extends the corotated linear elasticity model to achieve large skin deformation around joints. We further reconstruct controls from reference trajectories captured from human subjects by augmenting a sampling-based algorithm. We demonstrate the effectiveness of our framework by results not attainable with a simple combination of previous methods.