Detail-preserving fluid control

  • Authors:
  • N. Thürey;R. Keiser;M. Pauly;U. Rüde

  • Affiliations:
  • Applied Geometry Group, ETH Zurich, Switzerland and University Erlangen-Nuremberg, Germany;Applied Geometry Group, ETH Zurich, Switzerland;Applied Geometry Group, ETH Zurich, Switzerland;University Erlangen-Nuremberg, Germany

  • Venue:
  • Proceedings of the 2006 ACM SIGGRAPH/Eurographics symposium on Computer animation
  • Year:
  • 2006

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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.