/necro (ariiiise)
In case anyone finds himself here through google, another option (tested and working) is using the reshade setup.exe so as to make divinity2.exe allow for sweetfx injections.
You can have smaa, fxaa or both active (as you know AA is not really 'working' correctly by default, not even in the Div2 dev's cut version), along with everything else the preset offers.
edit: Note that (for me at least) i got it working with sweetfx version 2 preview 8. Not sure if other/newer ones would work. Also needless to say, this is a DX 9.0c game, if your package has a d3d10.dll in it, it's a no go.
If you're new to tweaking sweetfx settings manually, this guide is a very good start:
https://delightlylinux.wordpress.com/2014/01/20/sweetfx-shader-suite/Am currently giving DivII another go, so was on the look out for possible tweaks. If you find any trouble in doing the above, i could upload the modified executable for you.