Thanks again Nitro! (da cloud man! hehe..)

I have an updated link at home for that university Phenomenon course notes site, so I'll post that when I get home tonight.

Also, at https://www.rustboy.com , he goes over his technique on how he created his puffy clouds in 2D, using a technique employed by us compositors called: "MultiPlaning".

He needed to be able to fly through the clouds as well as a SUPER fast render time, so that's what he did

Check it out, he's even got an animation to look at as well

If you wanna see the animation, click here:
https://www.rustboy.tv/movies/cloudlayers.htm