3D images for unit facing - how does it work?

[Armored Inferno]

There is a thread at Matrix with a lot of info about the graphics.

I would guess that the program resizes the bmps to a standard and then uses x,y.

The standard images are in the main folder of each game, the specials are for snow, early war and late war variants.

I wasn't able to find answers on the Matrix games website