Yet another test run of features in PovRay and other things. I think I had an entirely different motive in mind, but instead this happened.
First I was trying my hand at making a starry night sky using some simple translucent textures on an infinite plane, then I combined this with a very simple heightfield I created while I was learning to use GeoMorph. The terrain is only a 512x512 heighfield - the artifacts can show (look at the tiny bumps - they are a little too uniform), but it looks surprisingly good. I guess it's supposed to be simple and passive, like for a desktop wallpaper that's not loud or obtrusive.