Physics-based smoke simulation with dynamic obstacles

In computer graphics field, smoke with the obstacles in the scene is very commonplace. In this paper, a new technique for the physics-based smoke simulation with dynamic complex obstacles is presented. In difference from other methods, our innovation firstly generates an obstacle texture which stores the positions of obstacles; then properties of the smoke in the boundary are modified according to the obstacle texture. The positions of obstacles can be acquired at any time through the obstacle texture and a transformation matrix; meanwhile, we don't need to update the obstacle texture per frame. Our scheme is independent on the complexity of the scene. Therefore, it can be applied in 3D battlefield environment and other 3D games to solve the problem of the interaction between smoke and dynamic complex obstacles.