research-article

Smoothed aggregation multigrid for cloth simulation

Authors:

Rasmus Tamstorf,

Stephen F. McCormickAuthors Info & Claims

ACM Transactions on Graphics (TOG), Volume 34, Issue 6

Article No.: 245, Pages 1 - 13

https://doi.org/10.1145/2816795.2818081

Published: 02 November 2015 Publication History

Abstract

Existing multigrid methods for cloth simulation are based on geometric multigrid. While good results have been reported, geometric methods are problematic for unstructured grids, widely varying material properties, and varying anisotropies, and they often have difficulty handling constraints arising from collisions. This paper applies the algebraic multigrid method known as smoothed aggregation to cloth simulation. This method is agnostic to the underlying tessellation, which can even vary over time, and it only requires the user to provide a fine-level mesh. To handle contact constraints efficiently, a prefiltered preconditioned conjugate gradient method is introduced. For highly efficient preconditioners, like the ones proposed here, prefiltering is essential, but, even for simple preconditioners, prefiltering provides significant benefits in the presence of many constraints. Numerical tests of the new approach on a range of examples confirm 6--8x speedups on a fully dressed character with 371k vertices, and even larger speedups on synthetic examples.

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Lyu AZhao SXian CCen ZCai HFang G(2024)Accelerate Neural Subspace-Based Reduced-Order Solver of Deformable Simulation by Lipschitz OptimizationACM Transactions on Graphics10.1145/368796143:6(1-10)Online publication date: 19-Dec-2024
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Index Terms

Smoothed aggregation multigrid for cloth simulation
1. Computing methodologies
  1. Modeling and simulation
    1. Simulation types and techniques
      1. Simulation by animation

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cover image ACM Transactions on Graphics

ACM Transactions on Graphics Volume 34, Issue 6

November 2015

944 pages

ISSN:0730-0301

EISSN:1557-7368

DOI:10.1145/2816795

Issue’s Table of Contents

Copyright © 2015 ACM.

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Publication History

Published: 02 November 2015

Published in TOG Volume 34, Issue 6

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https://dl.acm.org/doi/10.1145/3687961
Yuan CShi HLan LQiu YYuksel CWang HJiang CWu KYang Y(2024)Volumetric Homogenization for Knitwear SimulationACM Transactions on Graphics10.1145/368791143:6(1-19)Online publication date: 19-Dec-2024
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Lan LLu ZLong JYuan CLi XHe XWang HJiang CYang Y(2024)Efficient GPU Cloth Simulation with Non-distance Barriers and Subspace ReuseACM Transactions on Graphics10.1145/368776043:6(1-16)Online publication date: 19-Dec-2024
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