PlyEdit: 3 - Noise
From Headus Docs
The Noise tool does the opposite of smoothing. Normally 3D scans do have a bit of noise in them, but filled areas can be perfectly smooth, so the noise brush can be used to make the fill areas look more like real data.
Fig 1 shows you what you get when you use the <3> key; there's only two options: <3> - Painting<G> - Noise Marked Area |