Can I drag a "rake" through a sandbox TIN?

[Will Pittenger]

I created a complex TIN with the From Contours tool. Ironically, the TIN is meant to be sand. Now I would like to texture the surface so that it looks like I dragged a garden rake through the "sand". Are the built in sandbox tools able to do that? If not, how should I create the desired effect?

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[NewOne]

if you want to render the image, just use a normal map (or bump map) with blurred black stripes on white background for your material. If you want more detalied effect, and your rendering engine allows it, you can use a displacement map.
If you don't want to render the image, you can just make a texture with desired visuals... Trying to model that, will result in lots of polygons and SU might just not be able to handle.