B.Benes and T.Roa
14380 & Mexico D.F.
An algorithm for simulating wind-ripples and moving sand is extended by the detection of fixed objects. This permits us simulation and animation of sand interacting with objects like houses, highways, cactuses, etc. Sand is accumulated on the windward side of an obstacle and the sand relocation and wind-ripples formation is diminished on the leeward side. The wind shadow depends on the object's geometry and the wind speed and direction. Sand tongues are formed as the result of the sand motion.