I'd like to create a perforated material using a bump and opacity texture. After applying both textures I'm seeing two planes with perforations but not a thick material with walls inside each of the perforations. Is this possible using textures?
I do not believe so :-\
This is something that would need to be modeled in. The opacity effect basically makes certain parts of a surface invisible to the camera, but it doesn't 'fill' in geometry behind that surface.
Maybe someone smarter has a better solution?
Good luck,
David Merz