Hello,
For the moment a 'general' workflow is often to import WM (with erosion masks) '2D' terrain, and use terragen to give more details into vertical surfaces.
But somehow erosion 'should' be computed as a last stage, so this new feature sounds so exciting !
I'm really curious to see how this 3d erosion works on overhanging shapes. (after a strong twist and shear shader for example).
Please keep posting results