AA on UE4?

[Ben Lee]

Hi,

My experience of Unreal Engine is a mixed one. It seems to be a platform which offers good performance and features, however I am unsure what the latest AA (anti-alising) abilites are. I play a bit of Rising Storm 2, which uses UE3, and was surprised to learn that the only AA you can use is FXAA. Hopefully the situation is different on UE4...?

 

[RasmusP]

From what I know the TAA is getting a lot better lately! And supported in UE4.
For F1 2017 or watch dogs 2, TAA is a joke. Lots of jaggies while standing still and very blurry during movement.
Then if you look at battlefield 1, for honor or assassin's creed origins this changes massively! These games are a little blurry but with either higher screen sharpening (my monitor doesn't have a setting for this sadly but my TV does) or a little reshade it looks just great.
Not as great as sgssaa or 4x txaa (if it's not blurry!) but it's a big improvement without any real impact to the fps.
For me it's a lot better than 4x DSR, 200% supersampling or whatever you call it.

I am one of those who got more and more annoyed by the lack of anti aliasing in modern games. Especially if you can't force anything on top of it.
Witcher 2/3, F1 2017, rise of the tomb raider, watch dogs, cs:go. I'm just slowly getting used to all the flickering on screen. Good TAA is my silverlining.

And don't tell me that msaa would do a good job. I don't care for less jaggies on buildings while shadows, fences etc are giving me headache during movement...

 

[Deleted member 197115]

https://docs.unrealengine.com/en-us/Engine/Rendering/PostProcessEffects/AntiAliasing

Anti-aliasing in Unreal Engine 4 is performed in post processing using FXAA, which is an efficient GPU MLAA implementation. This method solves most causes of aliasing artifacts, but cannot fully prevent temporal aliasing.

Other techniques: UE4 currently supports MSAA only for a few editor 3d primitives (e.g. 3D Gizmo) and Temporal AA.

The feature can be disabled by the show flag Post-process Anti-aliasing.

 

[Leonardo Chaves]

After playing the F1 games i'm always scared about TAA, i don't know if it works on racing games.

 

[Stelios]

That is bad news for VR users, all that blurry AA mess in our face will suck, i hope they introduce some sharpness filters like some games do.

 

[Epistolarius]

That's not the fault of the engine. Anti-aliasing is an issue in all modern games and engines that use deferred shading. Everything is a compromise.