| Rendering & Animation |
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| Physically based modeling and animation of tornado |
| LIU Shi-guang, WANG Zhang-ye, GONG Zheng, CHEN Fei-fei, PENG Qun-sheng |
| State Key Lab of CAD & CG, Zhejiang University, Hangzhou 310027, China; Department of Mathematics, Zhejiang University, Hangzhou 310027, China |
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Abstract Realistic modeling and rendering of dynamic tornado scene is recognized as a challenging task for researchers of computer graphics. In this paper a new physically based method for simulating and animating tornado scene is presented. We first propose a Two-Fluid model based on the physical theory of tornado, then we simulate the flow of tornado and its interaction with surrounding objects such as debris, etc. Taking the scattering and absorption of light by the participating media into account, the illumination effects of the tornado scene can be generated realistically. With the support of graphics hardware, various kinds of dynamic tornado scenes can be rendered at interactive rates.
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Received: 07 April 2006
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