A Precomputed Approach for Real-time Haptic Interaction with Fluids
IEEE Computer Graphics & Applications, Vol. 27, No. 3, pp. 90-92 (2007)
Proc. ACM Symposium Virtual Reality Software and Technology (VRST) 2006, pp. 91-99 (2006-8)
Proc. Siggraph 2005 Emerging Technology Project (2005-8)
Yoshinori Dobashi 1 Shoichi Hasegawa 2 Mitsuaki Kato 2 Makoto Sato 2 Tsuyoshi Yamamoto 1 Tomoyuki Nishita 3 1Hokkaido University, 2Tokyo Institute of Technology, 3The University of Tokyo
Abstract
Haptic interfaces enable us to interact with a virtual world using
our sense of touch. This paper presents a method for realizing
haptic interaction with water. Our method displays forces acting
on rigid objects due to water with a high frame rate (500 Hz). To
achieve this, we present a fast method for simulating the
dynamics of water. We decompose the dynamics into two parts.
One is a linear flow expressed by a wave equation used to
compute water waves. The other is a more complex and nonlinear
flow around the object. The fluid forces due to the nonlinear
flow is precomputed by solving Navier-Stokes equations,
and stored in a database, named the Fluid Resistance Map. The
precomputed non-linear flow and the linear flow are combined to
compute the forces due to water.
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