Connecting Forward and Backward Simulations for Target Driven Fluid AnimationPublic Deposited
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Fluid dynamics simulations are governed completely by physics laws and are difficult to control for artistic requirements. We present a new method for art-directable control technique for liquid simulations by connecting forward and time-reversed backward target simulations in the background of a turbulent source simulation. From a given target shape to approximately match, our backward target simulation with negative initial velocity is simulated forward in time generating a sequence that when played reverse results in the formation of the target shape. The forward target simulation results in the deformation of the target shape and the coupling of these two gives rise to the desired target shape motion at the desired time step. We address a number of challenges in coupling the target simulations and blending them with the source simulation and achieve an art-directable control method.
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