I'm finally planning a map and want the playing area set on top of a bluff overlooking some valley. I'd like to make it as if the cliff is punching through the clouds so the valley below gets eclipsed more and more by clouds (or a fog). However, I don't want there to be much fog throughout the map, so an env_fog_controller is out. Any ideas? EDIT: I suppose I could just use an env_fog_controller and make the whole valley into a 3D skybox?