Determined I need to write customer rendering logic for the drilled hole.
The default renderer was assuming the vanilla convention for describing
direction in metadata.  This code doesn't fix the problem, but it starts
the scaffolding to working with the custom renderer.  I never did quite
check if the code actually ever gets called though.
Starting to get textures for the drilled hole to show up on the right
sides.  Had to assign the renderer ID before registering the renderer.
Having a fun time with X,Y,Z,U,V coords.