Compared to other games, some things just don't seem to work quite as well with the hammer editor, and I wonder if there's some way to emulate the way other game engines do it. E.g., RAGE (GTA) seems to do the whole fading into background a lot smoother. The Unreal engine allows you to do way more with fog, for instance.(dustclouds just eat up performance and don't exactly look stellar either). Now, we've seen some clever workarounds, like adding custom textures or models to the skybox that look like "high quality" fog (or aurora borealis). do you have other examples or ideas which would accomplish a more "realistic" environment?