Originally posted by *Dark
the best way that i have found (is also easier and creates better resaults) is to make a load of brushes sat 256*256*256 in a line, possable having several stacks of them then just vertex edit them in random directions.
Or use Gtk GenSurf and choose a random fractal option, it'll do all that for you.
In any case...I can't pimp rgoer's tutorial (
http://www.map-review.com/index.php?page=tutorial_view&id=12) enough. With a good heightmap, EasyGen can make some damn good terrains. Looks better than the pointy results random vertex editing will give you.