Real-time snowing simulation

Authors:
Changbo Wang;Zhangye Wang;Tian Xia;Qunsheng Peng
Affiliations:
State Key Laboratory of CAD &CG, Zhejiang University, Hangzhou, P.R. China and Department of Building Engineering, Tongji University, Shanghai, P.R. China;State Key Laboratory of CAD &CG, Zhejiang University, Hangzhou, P.R. China;State Key Laboratory of CAD &CG, Zhejiang University, Hangzhou, P.R. China;State Key Laboratory of CAD &CG, Zhejiang University, Hangzhou, P.R. China
Venue:
The Visual Computer: International Journal of Computer Graphics
Year:
2006

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Abstract

A snowing scene has a unique fascination for people due to its incomparable beauty. However, little work has been presented on the real-time generation of a dynamic snowing scene, partially due to the difficulty that the simulation of a dynamic snowing process involves the complex modeling of the wind field and the interaction between wind and snow. In this paper, by fully considering the physical characteristics of wind and snow, we construct a three-dimensional wind field based on the discrete form of the Boltzmann equation. According to the interaction laws between wind and snow, we simulate the falling of snow, deposition and erosion in 3D space. Experimental results show that realistic wind-driven snow scenes under different speeds of wind with different amounts of snowfall can be rendered in real-time.