UV mapping

UV mapping in 3D graphics is a process for texture mapping a 3D model by projecting the model's surface coordinates onto a 2D image. The letters "U" and "V" denote the axes of the 2D texture because "X", "Y", and "Z" are already used to denote the axes of the 3D object in model space, while "W" (in addition to XYZ) is used in calculating quaternion rotations, a common operation in computer graphics.

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