Based on the analysis of traditional simulation methods

this paper presents a new approach for simulation of snow falling and accumulating in large-scale terrain. The snow simulation is divided into two stages-falling and accumulating. In the former stage

rotation

dynamic texture

and dynamic color of particles are taken into account

which greatly improves the reality of simulation. In the later stage

image noise is introduced to a large-scale terrain

which solves the problem that the traditional methods cannot be scaled up to the large-scale terrain. Experiment shows this method improves the in snow simulation

keeps real-time

and adapts to the large-scale terrain

especially for the scene with flight simulation.