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Detail-Preserving Fluid Control
Abstract
We propose a new fluid control technique that uses scale-dependent force control to preserve small-scale fluid detail. Control particles define local force fields and can be generated automatically from either a physical simulation or a sequence of target shapes. We use a multi-scale decomposition of the velocity field and apply control
forces only to the coarse-scale components of the flow. Small-scale detail is thus preserved in a natural way avoiding the artificial viscosity often introduced by force-based control methods. We demonstrate the effectiveness of our method for both Lagrangian and Eulerian fluid simulation environments.
Categories and Subject Descriptors (according to ACM CCS): I.3.5 [Computer Graphics]: Physically based modeling, I.3.7 [Computer Graphics]: Animation, I.6.8 [Simulation and Modeling]: Animation
Eurographics/ACM SIGGRAPH Symposium on Computer Animation (2006) M.P. Cani, J. O’Brien (Editors)
