3D Fluid Volume Editing based on a Bidirectional Time Coupling Optimization Approach

We propose a novel optimization approach to locally edit a 3D fluid volume. Starting from a fluid reconstruction sequence or a fluid simulation sequence, we formulate geometric deformations as a nonlinear optimization problem to match user-specified targets. To seamlessly blending the edited 3D fluid volume into an original temporal sequence, we provide a bidirectional time coupling optimization approach. This approach takes the physical properties of the previous frame and the next frame as constraints to solve the current frame and meanwhile respect the spatial-temporal consistency of editing in various scenarios. Our results indicate the intuitiveness and efficacy of our method.