Thürey, NilsKeiser, RichardPauly, MarkRüde, UlrichMarie-Paule Cani and James O'Brien2014-01-292014-01-2920063-905673-34-71727-5288https://doi.org/10.2312/SCA/SCA06/007-013We 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