Fast viscoelastic behavior with thin features Journal Article


Author(s): Wojtan, Chris; Turk, Greg
Article Title: Fast viscoelastic behavior with thin features
Affiliation
Abstract: We introduce a method for efficiently animating a wide range of deformable materials. We combine a high resolution surface mesh with a tetrahedral finite element simulator that makes use of frequent re-meshing. This combination allows for fast and detailed simulations of complex elastic and plastic behavior. We significantly expand the range of physical parameters that can be simulated with a single technique, and the results are free from common artifacts such as volume-loss, smoothing, popping, and the absence of thin features like strands and sheets. Our decision to couple a high resolution surface with low-resolution physics leads to efficient simulation and detailed surface features, and our approach to creating the tetrahedral mesh leads to an order-of-magnitude speedup over previous techniques in the time spent re-meshing. We compute masses, collisions, and surface tension forces on the scale of the fine mesh, which helps avoid visual artifacts due to the differing mesh resolutions. The result is a method that can simulate a large array of different material behaviors with high resolution features in a short amount of time.
Keywords: computational fluid dynamics; deformable models; explicit surface; finite element method; free-form deformation; viscoelastic behavior
Journal Title: ACM Transactions on Graphics
Volume: 27
Issue 3
ISSN: 1557-7368
Publisher: ACM  
Date Published: 2008-08-01
Start Page: article 47
URL:
DOI: 10.1145/1360612.1360646
Open access: no
IST Austria Authors
  1. Chris Wojtan
    34 Wojtan
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