what is the reason for this shadow glitch on turntable renders
I dont think its from the light because its not appeared in light pass
I changed the ground to black and the glitch disapear
when change Gi from lumen to none it disapear
Hello there @Kareemkamal109!
Checking with my peers, and assuming you are working with MRQ, we suggest increasing the temporal sample count for the turnable, check either with 8 or 16:
There are also a few cmdlets to test, which will force cleaner results in the render, either by giving it more time to process, or removing effects that are prone to smearing on motion. Please cover them one by one:
-
Give Lumen more temporal accumulation frames:
r.Lumen.ScreenProbeGather.Temporal.MaxFramesAccumulated 16 -
Disable short range AO:
r.Lumen.ScreenProbeGather.ShortRangeAO 0 -
Disable screen traces:
r.Lumen.ScreenProbeGather.ScreenTraces 0
Hi @brs-sebascova
Thank you for your reply but unfortunately I didnt solve it
the artifact is on my viewport too, but on render after the Higher samples it created this freezed ghosty effect
I also tried the console commands but I didnt fix also
PS : I am using TSR as anti-alaising and my GPU is RTX 3090
Hello again!
Checking with my peers, the fact that the issue appears in the viewport as well, changes the scenario as bit, into a temporal accumulation problem. Those repeated triangles you are seeing, are most likely a product of previous frames, not properly cleared up.
So, the first thing I would test, is changing the AA method from TSR to TAA, or even FXAA, then check if the ghosting effect remains active. Go to Project Settings > Rendering, and save after each change:
Additionally, test by disabling Lumen in the project, both for Global and Reflections (same menu as before):
You can also adjust the values from the changes we did in the previous post, either back to default values, or even lower than before.
There are a few things that can cause ghosting one is indeed TSR. Try and set the AA method to None and increase Temporal (if you want motion blur) or Spatial (if you do not want motion blur) Samples to solve any AA issues. If this does not solve your issue its likely Lumen ghosting.