Deeper pool, no problem. Smaller stones, no problem. I'll get to work. The landscape was very basic, as it was the outcome of some tests into waterfalls. I'll put some veggies in there perhaps.
@aymenk: I don't know if it's different, as I haven't looked into your method yet. This is two lakes (you might use planes), one with real water in it and one with some surface layers with the stones attached (get rid of the watershader). Both are displaced by the same painted shader. Quite simple actually.
---Dune