"...can use a bitmap image for an atmosphere, then the answer is no..." Uh, Mike, that's not quite true. While the sky is a gradient, the cloud layers are tiled textures which use the same material editor as everything else. That means you CAN use bit maps. In fact when I get to work tomorrow, I'll download some examples of skies using cloud bit maps. -SMT

I'd rather stay in my lane than lay in my stain!