Transfer Texture Attributes (and other non-fields attributes)

It's a pity that right now you can only transfer fields attributes between objects.

I want to be able to transfer data like a Texture file which isn't bound to geometry from one Object to another.

I want to build a displacement based decal system where the location of a plane dictates the mapping position of a heightmap which gets used for displacement. Right now the only way to do this is to subdivide the plane to get a higher polygon density than the model which will get displaced and project the texture inside the plane mesh.

This results in terrible performance at higher polygon density.