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Subspace dynamic simulation using rotation-strain coordinates

Published: 02 November 2015 Publication History

Abstract

In this paper, we propose a full featured and efficient subspace simulation method in the rotation-strain (RS) space for elastic objects. Sharply different from previous methods using the rotation-strain space, except for the ability to handle non-linear elastic materials and external forces, our method correctly formulates the kinetic energy, centrifugal and Coriolis forces which significantly reduces the dynamic artifacts. We show many techniques used in the Euclidean space methods, such as modal derivatives, polynomial and cubature approximation, can be adapted to our RS simulator. Carefully designed experiments show that the equation of motion in RS space has less non-linearity than its Euclidean counterpart, and as a consequence, our method has great advantages of lower dimension and computational complexity than state-of-the-art methods in the Euclidean space.

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    Published In

    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
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 02 November 2015
    Published in TOG Volume 34, Issue 6

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    Author Tags

    1. elastic animation
    2. model reduction

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    • 973 Program of China
    • NSFC
    • Fundamental Research Funds for the Central Universities

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