Animating Sand as a Surface Flow [article]

Bo Zhu, Xubo Yang
<span title="">2010</span> <i title="The Eurographics Association"> <a target="_blank" rel="noopener" href="" style="color: black;">Eurographics State of the Art Reports</a> </i> &nbsp;
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
more &raquo; ... ight 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.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.2312/egsh.20101035</a> <a target="_blank" rel="external noopener" href="">fatcat:5xp26k7tjze2hpdlkoxep6yqdu</a> </span>
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