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    • 32-Issue 7
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    • 32-Issue 7
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    Constrainable Multigrid for Cloth

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    Date
    2013
    Author
    Jeon, Inyong
    Choi, Kwang-Jin
    Kim, Tae-Yong
    Choi, Bong-Ouk
    Ko, Hyeong-Seok
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    Abstract
    We present a new technique which can handle both point and sliding constraints in the multigrid (MG) framework. Although the MG method can theoretically perform as fast as O(N), the development of a clothing simulator based on the MG method calls for solving an important technical challenge: handling the constraints. Resolving constrains has been difficult in MG because there has been no clear way to transfer the constraints existing in the finest level mesh to the coarser level meshes. This paper presents a new formulation based on soft constraints, which can coarsen the constraints defined in the finest level to the coarser levels. Experiments are performed which show that the proposed method can solve the linear system up to 4-9 times faster in comparison with the modified preconditioned conjugate gradient method (MPCG) without quality degradation. The proposed method is easy to implement and can be straightforwardly applied to existing clothing simulators which are based on implicit time integration.
    BibTeX
    @article {10.1111:cgf.12209,
    journal = {Computer Graphics Forum},
    title = {{Constrainable Multigrid for Cloth}},
    author = {Jeon, Inyong and Choi, Kwang-Jin and Kim, Tae-Yong and Choi, Bong-Ouk and Ko, Hyeong-Seok},
    year = {2013},
    publisher = {The Eurographics Association and Blackwell Publishing Ltd.},
    ISSN = {1467-8659},
    DOI = {10.1111/cgf.12209}
    }
    URI
    http://dx.doi.org/10.1111/cgf.12209
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    System hosted at  Graz University of Technology.
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