Real-time Interactive Animations of Liquid Surfaces With Lattice-boltzmann Engines

A physics-based graphic engine supporting interactive animations of free water surfaces at real-time is presented. The algorithm is based on a lattice-Boltzmann model of the shallow waters equations and the interaction between the surface and external objects is achieved by means of source terms. The engine is capable of produce scenes of ponds whose surface reacts to perturbations introduced by the user or controlled by the computer, like drizzle or the stirring of a finger