Baseline (Widescreen) Solution & Issues
Native Hor+ support. Settings are stored in %APPDATA%\The Creative Assembly\Attila\scripts\preferences.script.txt
The campaign map's strategic overview is "Vert+".
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
Native Hor+ support.
Strategic overview is Vert-, FMVs are windowboxed.
Eyefinity / Surround Specific Solution & Issues
Native Hor+ support. As regards 2D elements, Eyefinity differs from other solutions but none is perfect.
AMD Eyefinity:
(+) Centered UI.
(+) Main menu: animated backdrop is pillarboxed.
(+) Campaign map: strategic overview is centered.
(-) Campaign map: all unit labels scale to the center screen. As a result they are not aligned with units most of the time.
Nvidia Surround:
(-) Spanned UI.
(-) Main menu: animated backdrop is Vert-.
(-) Campaign map: strategic overview is Vert-.
(+) Campaign map: unit labels scale correctly.
4k UHD Specific Solution & Issues