Hi Jo: The Fuji thing was only said in fun, and I realize one can easily create a DEM replica of Fuji-San and possibly manipulate the cloud structure to create a volcano like eruption structure. I think I should reiterate with some vigor that procedural driven geometries/textures with an archive of clip files that can be easily accessed and implimented on the tgd geography structure could possibly become a useful tool kit to augment the somewhat limited capabilities of the tgo function. I have observed the voronoi manipulation of terrains by Volker, and certain ones, if viewed in miniture could almost look like the natural formed structure of a mushroom clusters. In Terragen like in most things The Devil is in the details, and it is obvious that this program that can somewhat easily create the majesty of an entire planet yet seems at least historically to have had some of the greatest user difficulty in creating just a drop of water. Much is obviously being mastered by the PS collective effort towards natural form generation, but let us not forget those little things like function making a good ergonomic fit to human creative realities.