rotating sky…sounds like a good idea, maybe a couple of this spheres with alpha textures to make some layers and a accomplish an interesting look…its just matter of tweaking trial and error
It seems like that file is currently unavailable. Is there anyway you could put it back up? I’m trying to get my skysphere to work, but can’t get the shader to work right. :?
Well, as soon as you use multiple spheres, you’re back to several draw calls.
I’m using a box instead of sphere approach, but visually, there’s no difference (and you can rotate a box, too).
The problem with sky animation is that movement alone doesn’t convey a convincing effect. Clouds change as well. And that’s where you probably go beyond the capabilities of the iPhone.