Wicked, thanks. It's beyond me.
Yep, I have shadowmask on 0. All we need is a shader that tilts, right?
The only other problem I can see is that having or setting this game to use bgfx is now enabled on all the artwork choices within, so will it be possible to define that some don't use it and remain flat like if you want to view the background by itself?
MAME Artwork / Artwork Previews