Other Kinds of Texture Coordinates
UV coordinates are only one way of mapping an image to an object in Blender. Blender also has a number of procedural coordinates that you can use to assign textures by applying some kind of projection to your mesh. These have the advantage of being automatic and are useful for a wide range of applications, but they lack the precision of UV unwrapping, which allows you to specify exactly which points on the mesh correspond to the parts of an image.
Figure 8-1. UV unwrapping is akin to taking a 3D object and spreading it out flat on a 2D surface. This results in your mesh having a set of 2D coordinates that can ...
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