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I wrote something that would display planets in motion. I wanted the earth to show rotation, my first idea was to have a rectangular map of earth move across it, but I don't know how to do this without it covering the sun and stars also.
This is a simple version without the map, there will be objects behind and in front of the image I want to display.
My next idea would be to use an actual rotating 3d model, or to use an animated sprite. Is there an easy way to achieve this without using those options?