This tutorial covers ways to create a terrain and control a flow of particle moving on the terrain in Virtools. Textured dunes: download at http://www.tinkering.net/sciviz/terraindune.cmo The landscape is created With Dune color, for texture and with Dune black-and-white, for displacement map. Please note that the pictures can be created in Photoshop or from a digital camera. You can use the same image for a texture and for a displacement map. You may end up using a black and white image for the displacement map because sometimes you want to have more control over the topography.
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