Hi Paul,
I made a test scene with two Boxes of 10m x 10m x 10m.
One is assigned an Octane material with a Box projection instead of the default “mesh UV projection” (scale 1/1/1).
The other one has a Rhino material with a "WSC / OCS (box style) definition for its texture (texture size 1).
Both should display 10 circles in each of their dimension axis in the Rhino viewport, and the rendered Image.
I attached the scene as a zip file