Rigid Body Interaction for Large-Scale Real-Time Water Simulation

Figure 3

A side view explaining surface, effective surface, and pressure. Surface, the top of the topmost water column, is pushed down by the body. Effective surface is an estimate of where the surface would be without the body and is calculated by adding the external pressure to the surface (see Section 3.6). These two surfaces only differ in cells where the surface is pushed down by a body.