> I want to create something like picture on the entrance page of
> www.planetside.co.uk
> I want to create a moon (or two moons, or giant planet, whatever) over the
> landscape, behind the clouds. This is effect that you can see if the moon
is
> visible during the daylight. You can see white halfmoon, with craters and
> stuff, and the other half in the color of sky.
> Is it possible without cheating (I mean no discs, Boolean objects and
> stuff like this)? I am aware that this effect is result of atmosphere's
> influence on light (the reason why the sky is blue). Can it be simulated
> in POV?

Here's an untested idea you can try. Keeping your background to the default
black, create your moon(s)/planet(s) as you normally would, with ambient 0,
so the unlit parts look black. Now create a large sphere and make it
semi-transparent. Make it's large enough that it doesn't get in the way of
anything you have in your sky, but also make sure the moon(s)/planet(s) are
outside the sphere. This sphere will act as your atmosphere and shade
everything to whatever colour you give your it.

Hope that helps,
Darcy

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