XYZ to UVW

The XYZ to UVW map  is also known as Planar Projection or Flat mapping. This projection map takes the coordinates in world or object space and use them as UVW coordinates. For images, only the X and Y coordinates are relevant, which are mapped to U and V. In other words the images use flat mapping projected along the Z axis.

Rotating the mapping around the Z axis will rotate the image around the center, as the UVW rotation would do.