Flow map

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A flow map stores directional information in a texture, also called a vector field. This can be used to control the UV coordinates for a water texture, to make the texture flow around rocks. It can also be used to control the direction of a hairstyle's anisotropic specular highlight.

Waterflowdemo graphicsrunner.jpg Flowmap graphicsrunner.png
Images by Graphics Runner


UDK water with flow map.jpg
UDK - Water with Flow Map video by Hywel Thomas

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