Something I've been playing with because of a thread about planet maps. The original earth texture is 21600 x 10800, but TG2 just told me it couldn't load that, so I downscaled it 50% (10800x5400). Is there a maximum resolution TG2 supports?
Other facts: used a cloud coverage map as a filter for the cloud distribution. used a mask image to put a water surface on the oceans. If you look carefully at Spain you'll see the reflection of the sun in the water there.
Just can't figure out where the line in the atmosphere is coming from. It seems to follow the light/shadow border.