In Blender they speak about the UV/Image Editor. I cannot find the meaning of the letters "UV". What is UV standing for ?
Since 3D space and texture coordinates are stored together with the mesh to distinguish between them texture coordinates are associated with a separate letters sequence (U, V and W)
U and V denote the X and Y axes of the 2D texture that is projected onto the 3D model. 3D generated textures have another coordinate W that is equivalent to Z
U V and W co-ordinates are the same as X Y and Z co-ordinates except U V and W are used to describe the co-ordinates of a MESH while X Y and Z describe the co-ordinates of Z-SPACE. but, the UV editor is only 2D so the W co-ordinate is not seen leaving just the U and V co-ordinates, hence the UV editor. -Noah