Except for the gas giants, for all intensive purposes, the planets are spherical - unless you are doing animations for NASA or something. Oblateness in most cases is negligible. But I would make Phobos and Deimos with extra special care. :)

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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