ThD-Lee
(ThD-Lee)
June 22, 2021, 10:56am
1
Dear everyone,
since I ported our project from 4.26, I have strong ghosting on Emissive Materials.
Is the Velocity for Emissive Materials missing? I would switch on ‘Output Velocities’ for the Material, but this is only available for Translucent Materials and this is a simple Mask.
The waves emitted on the top right at the beginning are actually kinda cool^^
(The velocity buffer, doesn’t show a lot)
pezzott1
(pezzott1)
June 22, 2021, 3:13pm
2
If you are using Lumen, ghosting is one of the things they intend to improve for release.
ThD-Lee
(ThD-Lee)
June 22, 2021, 9:06pm
3
No, none of these settings makes a difference
pezzott1
(pezzott1)
June 22, 2021, 9:11pm
4
That’s what I’m saying, it’s a known issue in UE5. It needs to be fixed by Epic.
ThD-Lee
(ThD-Lee)
June 22, 2021, 9:20pm
5
It doesn’t seem to be Lumen related.
Do you have a source for the known ghosting issue?
pezzott1
(pezzott1)
June 23, 2021, 2:38am
6
ThD-Lee
(ThD-Lee)
June 24, 2021, 6:44pm
7
I did some more testing, including deactivating Mesh Distance Fields (Lumen completely deactivated) and Forward Rendering (which worked better)
In the end it still seems like that the Velocity is not coming through for (Emissive) Masked Opaque Materials.
Luckily I now found a workaround by Setting the Emissive Materials to Translucent and checking ‘Output Velocity’ .