Hi everybody I'm a beginner in 3D and i need your help because of a bug you can see on these two images . On the first one, look at the bottom right on the smoke: a part of the terrain appears through it . On the second one it's the same thing: the terrain appears through the transparent sphere but it should not . I've seen this bug only with terrains. The only solution seems to convert the terrain to a vertex object, but the file gets much bigger, and my poor little computer can't handle it :( I think i've tried everything, but maybe i've missed something , so if anyone knows a trick for that one or has an idea ... Thanks for your help .

Damn cool image. The top one is really cool looking! Sorry I dont have a fix....Maybe some of the other forum regulars will have some info on the problem... Clint

Could this be something to do with refraction or relection if it only happens with terrains I doubt it. Alot of times post render touch up is required with something like photoshop or painter.Maybe not the best solution but the only one I can think of. Stace

Hi guys I've finally found the solution, it's okay now . Here is the trick: i got to do a first render with only the mountains and the atmosphere, then set the image as a backdrop for a second render with the plane and the smoke . By the way, thanks to all. PS: Stacey, it's not a refraction problem, i've checked . It's a bug , and not the worst in Carrara ! I hope we'll get some patches one day for all those bugs . But i am expecting too much ???