Planetary engine that can be used with real elevation data of arbitrary resolution, while being progressively enhanced by fractal algorithms. The fractal algorithms refine and introduce details down to centimeter resolution and can be parametrized by elevation and land class data. A completely random fractal terrain is possible too, or a terrain can be sketched in rough resolution with fractal generating the details. Level of detail ranges from thousands of kilometers down to centimeters, with full visibility. The engine is fully asynchronous, majority of the algorithms running on the GPU while the rest is distributed to multiple CPU cores.
Evening
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so is the day/night cycle actually based on the planets location and rotation reletive to the star its orbitting? or are you just simulating the effect?
Well the sun vector can be set programmatically, and a game may tie it to the time of day and year or to whatever it wants to.
so then... is it concievable that you could show the view from say...a spaceship, and then enter the planets atmosphere, to compare it, to see the effects of evening reletive to the planets location and rotation from the sun?