1. Create a normal projection texture. This will give you the texture and a 3D placement node feeding into a projection node.

2. Delete the 3D placement node.

3. Hook up the World Inverse Matrix attribute (from Camera or Spotlight) to the Placement Matrix attribute (of the Projection Node).

If you use a spotlight, you can spin it around it shaded, lit mode and see where the texture is being projected.

By Jeff Adie