Hey everyone,
I’m running into a really annoying ghosting issue in VR when using Lumen.
With baked lighting, everything looks perfectly stable, no ghosting at all.
But as soon as I switch to Lumen, I start getting heavy ghosting / trailing on almost every moving element, especially when turning my head in VR.
What I’m seeing:
-
Ghosting appears as a persistent “afterimage” or smearing when moving the headset.
-
It’s very noticeable on bright edges, emissive materials, and reflective surfaces.
-
When switching back to baked lighting, the issue disappears.
What I’ve tried (no success so far):
-
Adjusted every PostProcess setting (exposure, motion blur, AA, bloom, tone mapper, etc).
-
Tested all anti-aliasing methods (TAA, TSR, FXAA, no AA).
-
Disabled motion blur and temporal upscaling.
-
Changed Lumen settings (
r.Lumen.*
,r.LumenReflections.*
, etc) through console commands. -
Cleaned Derived Data Cache, restarted drivers, even recreated the project — still the same.
Setup:
-
GPU: RTX 5090
-
VR Headset: Meta Quest 3
-
Unreal Engine Version: 5.6.1
I can provide any further information, just let me know.