Question on using clouds in the vray sky

Ok, so I’ve got clouds in my vraysky via a mix map, but for now, i have the mix map as noise set fairly large. Is there a better mix map to use so that the clouds fall off at the horizon line? I tried falloff and gradient, but I might have had the tiling wrong? Curious if anyone else is playing with this?

Clouds

You can follow this thread:

http://www.chaosgroup.com/forums/vbulletin/showthread.php?t=38955

thanks. I found that last night while searching around more.