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That started back in the old Quake engine where they first used 3d models mainstream in games. They used bitmaps and referenced specific coordinates and mapped them to the model, since bitmaps are pixel-by-pixel.
Ever seen a 2D map of the earth? That's how you map curvature. Kinda difficult to map the earth, which is made up of a continuous curve, without using curves.
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The best moments of our lives fall in two categories: those that did happen and those that did not.
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