Quote - I thought so before, too, but in fact it doesn't need to be as big as you might think :-) Even at an AP of 1 the clouds will gradually fade into the haze in the distance, so unless you have a camera focal property of 10mm or less, a big but still managable primitive object will do. The only downside to this is that the clouds fade away in a straight line (they are conforming to the shape of the cube), but you can easily work around this by using more irregularly shaped objects, e.g. a standard vue rock.

I think originally impish published this trick on his Vue blog. He used it at that time to "shape" cloud layers to his liking and to achieve Godrays a lot easier.

That's ingenious.  I would not have thought to do this!

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