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Blender 2.5 Lighting and Rendering by Aaron W. Powell

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Chapter 6. UV Mapping and Texturing

Many times, objects contain numerous attributes that define how they look, and they're not always perfectly uniform in relation to the object. For example, a used paint can would have paint dripping down the sides of the can if we were creating this can in 3D, we'd have to tell Blender that there is a specific spot on our 3D mesh that contains different attributes than the rest of the mesh. This is where UV mapping comes in handy. UV coordinates are, in simple terms, a two-dimensional representation of the texture coordinates of a three-dimensional object. They allow us to tell Blender specific properties about specific areas of our objects in a scene.

Imagine a bearskin rug for a moment. In order to create that ...

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