I tried all of these things and didn’t resolve the issue for me. I found the default TSR anti-aliasing was causing the issue in my case. I changed to TAA instead and now its like my UE4 version looked which was a million times better. All the graininess on my moving translucent materials is gone; and my in-game mirror no longer has ghosting graininess either.
1 Like
Having same issue with several effects and WPO meshes. Anyone knows if there is an open issue or report on this?
Having the same problem as described here.
You need to do exactly what jon_eg suggested with Velocity pass to fix the TSR and TAA WPO foliage smearing issue. This solution has worked 100% on this problem which has been present since UE 5.0 prev ver.
As far as the shadowy fractal noise looking effect on the foliage I learned that by using this: r.Lumen.ScreenProbeGather.ScreenTraces.HZBTraversal 0 in console command gets rid of that problem almost entirely. Good luck
2 Likes
Made a short solution. Thats in russian but you wiull understand over without translate.
It helps with ghosting of most objects. Still is a temporary solution, but it helped for me.
I changed “Velocity Pass” to “Write after base pass” to resolve this issue. For me it was a Landscape material in the fourground. Changing the AA options helped, but the image looked rubish, so that’s not an option.
“Write during base pass” is now enabled by default in UE5.1.1. I still have a lot of ghosting when using cable components. Everything is set to movable.
4 Likes
This problem is also still present on Niagara ribbons in 5.1, heavy smearing/ghosting, wasn’t there in UE4. More noticeable with an opaque material and when ribbons are static and camera is moving, doesn’t do it when just looking around. Velocity pass is set to write during base pass.
Edit : I tested in 5.2 preview 1 and this issue is mostly fixed.
2 Likes
If I clearly understand what you want, you can disable motion blur for niagara, may be it can help.
Motion blur disabled, even decal actors are a mess with this. No static mesh involved at all. TSR disabled, they’re fine. Still an issue in 5.3
Still broken for instanced static meshes in UE5.2
Does not smear if
- AA disabled
or - AA set to MSAA
or - object material set to translucent and translucency pass to “after motion blur”. (even if motion blur is disabled)
Moving ISMs is super broken.
5.4.1 STILL broken, wth epic, this has been long reported since 2022 (possibly sooner?) and still its an issue 
I tried the solutions above, nothing changed anything. My characters when walking are fine but when playing attack animation or idle anim they are blurry as hell. I had to change to TAA 
2 Likes
Even with ‘write during base pass’ and ‘output velocities’ I’m still getting severe ghosting artifacts.
1 Like
Found the culprit. There’s a somewhat hidden setting in the WPO node that is unchecked by default. Make sure to check it when working with speedtree assets!
1 Like
Is this only for SpeedTree (since you seem to be using the SpeedTree node)?
I’m having this issue (5.3.2) and still can’t find any solution. I’m using the MW Broadleaf module: https://www.fab.com/listings/8206b7c3-e4fa-4c36-bde3-98c03b0de8ac
I think it was highly noticeable in MW packs because they use dither temporal AA in their materials.
Actually no we don’t 
Looks more like some bad render setting for velocity output.