Sets the range of the 3D fog. No fog will occur within the minimum distance, after which the fog will begin to take affect. The maximum distance is not a limit and is only a rough guide for how far you want to be able to see in your scene. The fog increases exponentially to mimic reality, meaning it increases quickly at first then tails off and gradually reaches full intensity around the maximum distance.
SetFogRange( minDist, maxDist )