A Geometry-Based Control Method for Fluid Animation

In fluid animation, fluid control method is one of the most critical techniques for producing controllable fluid behaviors.To provide the fluid animation results with living vision and controllable behavior, we propose a fluid control method based on geometric features.First, we construct a timevarying geometric sub-region model for fluid control which enables us to represent and track the high resolution fluid features effectively.Second, we design a heterogeneous control model to enhance the flexibility of fluid motion control.A rigid control method via constraint optimization and a soft control approach according to spring model is employed in the proposed model.Finally, we couple the heterogeneous control model with the accurate physically-based fluid model to generate controllable visual pleasing results.Experimental results show that our method can produce sufficient liquid details while preserving the character shape which satisfies the requirement of fluid simulation.