Yeah, I'm familiar with Taiki. Frankly volumetric clouds are something of a passion of mine, since - as I said before - I consider them vital to realism. Unfortunately I'm not a Lightwave user, and don't have the money nor free time to invest in purchasing and getting to know it just to use it as a landscape renderer. Although I have no doubt if I did so it would be great at it (I've seen some fantastic results come out of it). As far as other volumetric solutions, there are of course many. One I find especiallyinteresting, due in part to the particular approach used and the apparently high quality results, combined with the claim of being faster than other methods, is implemented in POVRay. Take a look: http://www.oyonale.com/ressources/english/sources13.htm Render times seem to vary between reasonable and outlandish, although they're quoted for a machine far below top-end today. So something like this might be worth experimenting with, either in Lightwave or, ideally, in Vue (could this be done through Python?). I'll keep an eye out for the shader geniuses making magic out of Vue's volumetrics. I'd love to see it, so come on guys! - Oshyan