Hey everybody,
I just stumbled across this site, which has several several complete fisheye photographs of skies (and equirectangular corrected versions) which are free for use. Enjoy!
Skydome Textures
Re: Skydome Textures
Great link, thanks a lot! 
Those pictures will sure be handy at some point. The rectangular ones are perfect for skydomes, and could be used as they are. Personally I'd just cut the lower half, as it's not needed and would use some memory..
Those pictures will sure be handy at some point. The rectangular ones are perfect for skydomes, and could be used as they are. Personally I'd just cut the lower half, as it's not needed and would use some memory..