Ok, Rendo has just swallowed lengthy posts on this subject twice. Evil, evil Rendo! So I'll try to make it short. :p I just recently downloaded the V5I demo and have been enjoying playing around with it. However one thing I can't seem to figure out is volumetric clouds. They're on the feature list at E-On software, and I've tried some of the built-in atmospheres as well as creating my own, making sure to have volumetric turned on in the cloud material and volumetric atmosphere on as well. But the clouds are still totally flat. If you fly up to them they have no dimension and so are not truly volumetric. This is similar to Terragen's clouds, where they are shaded to look 3D, but are not truly 3D at all. Here are some examples of real volumetric clouds from MojoWorld, World Construction Set and Terragen 2 Alpha: http://www.3dcommune.com/3d/galview.mv?MojoWorld+iWyFqWIJc+1120482489 http://www.3dnature.com/images/CastleIsland.gif http://www.renderosity.com/viewed.ez?galleryid=832146 Can Vue create stuff like that? I know you can use object primitives with volumetric materials to get a true 3D volumetric effect, but I can't seem to produce very convincing results this way. Even if I could, the thought of creating an entire sky of these by hand is not particularly appealing, although perhaps Ecosystems could be used to good effect there. Anyway, all help and advice is greatly appreciated. Vue 5 Infinite is a fantastic product, but without good atmospheres and clouds I'm not sure it is worth the cost to me. - Oshyan