I was wondering if there was a way to have the hair shorter on some parts of the body, like the hands and face. Or if not, if there is a was a can show the features of the face through the fur.
search the forums for terrain with grass, i posted a shader long ago which you can define where grass grows on a terrain or a mesh.
That might help you out if you edit it slightly.
Not if Jstaples is looking for ‘smooth’ transitions. In that case you might want to be able to adjust the height with some kind of heightmap. Which I guess you could do on a per-vertex basis, if the platform supports vertex texture fetch.