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Abstract
Physically-based animation is attracting people’s attention increasingly in the area of computer games, animation, movies, medical simulation, and virtual reality. Current continuum mechanics approaches often have a trade-off between efficiency and accuracy. For example, Position Based Dynamics (PBD) is predominantly used in real-time applications for its efficiency but suffers from limited accuracy. Projective Dynamics builds a bridge between nodal Finite Element methods and PBD.
The original Projective Dynamics paper requires that the energy potentials consist of quadratic distance measure. Liu et al. reinterpret and extend the Projective Dynamics to support different types of hyper-elastic materials. In this work, we further extend Projective Dynamics to be combined with other integration schemes, Rayleigh damping, coupling rigid and deformable bodies, and topology change (e.g., cutting and tearing).
