Animation of Water Droplet Flow on Structured Surfaces

Malin Jonsson
University of Gävle, Sweden

Anders Hast
Creative Media Lab, University of Gävle, Sweden

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Ingår i: Special Effects and Rendering. Proceedings from SIGRAD 2002; Linköpings universitet; Norrköping; Sweden; November 28th and 29th; 2002

Linköping Electronic Conference Proceedings 7:3, s. 17-22

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Publicerad: 2002-11-28


ISSN: 1650-3686 (tryckt), 1650-3740 (online)


Several methods for rendering and modeling water have been made and a few of them address the natural phenomenon of water droplets flow. As far as we know; none of those methods have used bump maps in order to simulate the flow of a droplet on structured surfaces. The normals of the bump map; that describes the geometry of the micro structured surface; are used in the flow computation of the droplets. As a result; the water droplets will meander down on the surface as if it has a micro structure. Existing models were not suitable for this purpose. Therefore; a new model is proposed in this paper. The droplet will also leave a trail; which is produced by changing the background texture on the surface. This method will not present a physically correct simulation of water droplets flow on a structured surface. However; it will produce a physically plausible real-time animation.


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