Interactive Thin Elastic Materials.

Tang, W., Wan, T. and Huang, D., 2016. Interactive Thin Elastic Materials. Computer Animation and Virtual Worlds, 27 (2), pp. 141-150.

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DOI: 10.1002/cav.1666

Abstract

Despite great strides in past years are being made to generate motions of elastic 1 materials such as cloth and biological skin in virtual world, unfortunately, the computational cost of realistic high-resolution simulations currently precludes their use in interactive applications. Thin elastic materials such as cloth and biological skin often exhibit complex nonlinear elastic behaviors. However, modeling elastic nonlinearity can be computationally expensive and numerically unstable, imposing significant challenges for their use in interactive applications. This paper presents a novel simulation framework for simulating realistic material behaviours with interactive frame rate. Central to the framework is the use of a constraint-based multi-resolution solver for efficient and robust modelling of the material nonlinearity. We extend a strain limiting method to work on deformation gradients of triangulated surface models in three dimensional space with a novel data structure. The simulation framework utilises an iterative nonlinear Gauss-Seidel procedure and a multilevel hierarchy structure to achieve computational speed ups. As material non-linearity are generated by enforcing strain limiting constraints at a multilevel hierarchy, our simulation system can rapidly accelerate the convergence of the large constraint system with simultaneous enforcement of boundary conditions. The simplicity and efficiency of the framework makes simulations of highly realistic thin elastic materials substantially fast and is applicable of simulations for interactive applications.

Item Type:Article
ISSN:1546-4261
Uncontrolled Keywords:computer animation;computer games;cloth simulation;interactive virtual reality applications
Subjects:UNSPECIFIED
Group:Faculty of Science and Technology
ID Code:21960
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:18 May 2015 10:52
Last Modified:27 Jul 2016 08:46

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