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A New Implicit Integration Method for Low Damped Cloth Simulation

Summary: A New Implicit Integration Method
for Low Damped Cloth Simulation
Seungwoo Oh1
, Junghyun Ahn and Kwangyun Wohn
Virtual Reality Laboratory, EECS, Korea Advanced Institute of
Science and Technology
This paper discusses a new technique that reproduces a stable cloth without introducing excessive damping artifacts.
Semi-implicit integration methods have been widely used in cloth simulations for their high stability and speed. Artificial
internal damping forces are derived from the linearization process of semi-implicit integration. This makes the system
highly stable. However, the artificial internal damping forces are generated with respect to not only internal deformations
but also rotational rigid motions. This damping artifact significantly degrades the realism of the cloth simulation. Hence,
we propose a new implicit integration method to decrease this artifact. The artificial internal damping forces are
computed by considering the pure internal deformations alone, and are stably incorporated into the dynamical system. As
a result, our simulator could reproduce a wide range of cloth materials without the excessive damping artifacts in real-
Keywords: Computer Animation, Cloth Simulation, Implicit Integration
Address: 373-1 Kusong-Dong, Yusong-Gu, Taejon 305-701, VR
Lab., EECS, KAIST, KOREA, Phone: +82-42-869-3572, Fax: +82-42-


Source: Ahn, Junghyun - Virtual Reality Lab., Faculté Informatique et Communications, Ecole Polytechnique Fédérale de Lausanne


Collections: Computer Technologies and Information Sciences