Animating Sand as a Surface Flow

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Date
2010
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Volume Title
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The Eurographics Association
Abstract
This paper presents a new efficient method for animating sand and other granular materials in 3D scenes. Our method couples 2D and 3D simulation techniques in a physically based way. A surface flow model of granular material-the BCRE model-is used to separate sand piles into two layers: a surface flowing layer and a static layer. The surface layer is simulated using discrete element method (DEM) to capture the detailed flowing behavior, while the invisible and static layer is represented by a height field for efficiency. The matter transfer between the two layers is modeled based on the surface flow equations through a particle interface. We demonstrate that our method leads to significant improvements of computational efficiency compared to standard discrete element method, without sacrificing the rich 3D animation effects.
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@inproceedings{
10.2312:egsh.20101035
, booktitle = {
Eurographics 2010 - Short Papers
}, editor = {
H. P. A. Lensch and S. Seipel
}, title = {{
Animating Sand as a Surface Flow
}}, author = {
Zhu, Bo
and
Yang, Xubo
}, year = {
2010
}, publisher = {
The Eurographics Association
}, ISBN = {}, DOI = {
10.2312/egsh.20101035
} }
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