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Rigid-motion-inspired liquid character animation

Authors

  • Guijuan Zhang,

    Corresponding author
    1. Shandong Provincial Key Laboratory for Novel Distributed Computer Software Technology, Jinan, China
    2. School of Computer Science and Technology, Shandong University, Jinan, China
    • School of Information Science and Engineering, Shandong Normal University, Jinan, China
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  • Dianjie Lu,

    1. School of Information Science and Engineering, Shandong Normal University, Jinan, China
    2. Shandong Provincial Key Laboratory for Novel Distributed Computer Software Technology, Jinan, China
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  • Dengming Zhu,

    1. Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China
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  • Lei Lv,

    1. Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China
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  • Hong Liu,

    1. School of Information Science and Engineering, Shandong Normal University, Jinan, China
    2. Shandong Provincial Key Laboratory for Novel Distributed Computer Software Technology, Jinan, China
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  • Xiangxu Meng

    1. School of Computer Science and Technology, Shandong University, Jinan, China
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Correspondence: Guijuan Zhang, School of Information Science and Engineering, Shandong Normal University, No.88 East Wenhua Road, Jinan, China.

E-mail: guijuanzhang@gmail.com

ABSTRACT

We present a rigid-motion-inspired method for animating liquid characters in this paper. Our method allows an animator to control the motion of liquid characters with motion capture data that is widely used in rigid body animation. It animates the most visual interesting part of liquid character, that is, to preserve character's shape as well as produce enough liquid details. To this end, we build a two-layer model to represent the character by two coaxial layers: the rigid kernel and the liquid shell. Different control paradigms are used for the two layers instead of applying homogeneous force that is common in previous approaches. By embedding the control algorithm to the Navier–Stokes equations, we compute the fluid velocity that drives the motion of the liquid character. Results show that the method is easy and intuitive to use while incurring little additional cost.Copyright © 2013 John Wiley & Sons, Ltd.

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