@Hotshot- If you have been following my other erosion experiments, you might be able to adapt some of the logic to wind erosion. Instead of using flow to mask the displacement, you could use an Aspect Device adjusted by Curves or Levels to mask where material might be removed from one side of hills or mountains and accumulate on the opposite side. Control over things like rock hardness, cone of accumulation, wind speed and persistence would all be determined by the mask you generate for the displacement.
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