UV mapping

The application of a texture in the UV space related to the effect in 3D.
A representation of the UV mapping of a cube. The flattened cube net may then be textured to texture the cube.

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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