Tried all options imaginable but can't make in-game MSAA work with Visible Upgrade under Win10 1903 on an RTX 2080. Forcing it through drivers doesn't work either, with or without bloom. Thus the only AA options readily available even with Visible Upgrade are DSR or driver level FXAA. Reshade's SMAA injection is likely possible too albeit my game crashed with it - some injector conflict possibly. Any ideas? Should this be mentioned on the game's page?
Topic on Talk:Deus Ex: Invisible War
Just tested this on Win7. It appears that after installing the mod you have to manually edit the config file:
C:\Users\[UserName]\Documents\Deus Ex - Invisible War\Options\Options.ini
Under [VideoOptions] set the MultiSampling= value to your liking.
In any case, using the in-game option doesn't seem to noticeably improve its visual quality (due to how UE2 handles antialiasing). I've had much better results with forced adaptive AA (plus AF), which on my end works flawlessly.