for me i can't do animation if the frame its very long. but if it's less then 2 minutes
i can do it. hehehehe, this is my choise.
i try here to make fog using low altitude clouds
At the moment i try to use Terragen animation as background in 3dsmax
its not easy but its very interresting way.
need for example animation, and effects as particul flow or fumefx
this is a simple test