A reaction-diffusion methodology for soft object simulation

Authors:
Yongmin Zhong;Bijan Shirinzadeh;Gursel Alici;Julian Smith
Affiliations:
Monash University, Australia;Monash University, Australia;University of Wollongong, Australia;Monash University, Australia
Venue:
Proceedings of the 2006 ACM international conference on Virtual reality continuum and its applications
Year:
2006

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Abstract

In this paper, a new methodology is presented to simulate deformation of soft objects by the reaction-diffusion analogy. The potential energy generated by an external force as a result of a deformation is propagated among mass points by the principle of reaction-diffusion. The novelty of the methodology is that the reaction-diffusion techniques are established to describe the potential energy of deformation and to extrapolate internal forces of a deformed object. An improved reaction-diffusion model is developed for the natural propagation of the energy generated by the external force. A method is presented to derive the internal forces from the potential energy distribution. The proposed methodology not only deals with large-range deformation, but also accommodates both isotropic and anisotropic materials by simply changing diffusion constants. Examples are presented to demonstrate the efficiency of the proposed methodology.