关键词: 格子气模型 自然场景模拟 流体模拟

Abstract:

The simulation of natural scenery is a challenging and important field of computer graphics, and it is relative with the simulation of fluid motion. T  he 3-D discrete Boltzmann gas lattice method has been used in fluid simulation, but the FCHC grids lead to complex and difficult realization. This paper  proposes a new Boltzrnarm model, which is the lattice gas model based on turn probability （LGT）. The model is defined on the regular equidistant grid d and is efficient and easy for the application in natural scenery simulation. Additionally, LGT has been used to simulate the dynamic cloud scene, and    the results of experiment demonstrate that LGT is a good choice for fluid simulation and virtual natural scenery

Key words: （lattice gas model, simulation of natural scenery, fluid simulation）