How to remove all flickering?

[Zimaell]

I encounter constant flickering in any situation with any settings, and I also noticed that this flickering happens to absolutely everyone. I’ve searched through a bunch of threads about this problem and this is what I finally found.

r.Lumen.ScreenProbeGather.Temporal.DistanceThreshold 0.05

r.Lumen.ScreenProbeGather.Temporal.MaxFramesAccumulated 30

r.Lumen.Reflections.Temporal.MaxFramesAccumulated 50

r.Lumen.Reflections.Temporal.MaxRayDirections 0

r.VolumetricFog.InjectRaytracedLights 1

r.Lumen.ScreenProbeGather.ScreenTraces 0

r.Lumen.Reflections.ScreenTraces 0

and also “final gather 20”

but there are still flickerings, tell me what else can be done?

somehow in UE games everything works without flickering, is there really no set of these commands to get rid of this? this is a common issue and I have been struggling with this issue for more than one week…

[SupportiveEntity]

Hey there @Zimaell! Is the flickering Lumen flickering or something else? Could we see the issue in action?

In the meantime, here’s a couple threads that can help mitigate or solve lumen specific flickering:

Flickering light/shadows/mesh (Lumen)

Every time I start a new project, I have flickering shadows and problems (blurring) with lighting. You can also notice a strange effect when the texture of sand is present on the material. I have been struggling with this problem for a week now, but I have not found a solution. I think it’s all about Lumen, because when I delete the DefaultEngine.ini file, everything becomes normal. I can change any settings as I wish, BUT as soon as I do Lumen in ReflectionMethod and Global Illumination, every…

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Does anyone know a solution to flickering lumen?

[Zimaell]

I use UE 5.6, lumens, virtual shadow maps, and ray tracing.

Here are some examples, using the console commands described above. I also show two videos with everything disabled (skylight, clouds, fog, anti-aliasing, etc.) and only directional lighting, and the third video has everything enabled.

No matter what I do, there’s still flickering, which is incredibly annoying…

test 2

test 3

[Arkiras]

• Shadowmap method to “Shadow Maps” (not virtual shadow maps) in project settings
• Global Illumination Method to None
• Anti-Aliasing Method: TAA (None or FXAA would probably also work)

And for good measure you could set screen percentage to 200% if you don’t care about performance.

[comlys (Shaun Comly)]

What AntiAliasing are you using?

[Zimaell]

The problem turned out to be with the virtual textures. I converted them to regular ones, and those artifacts disappeared.

Although anti-aliasing is still an issue. Regular FXAA doesn’t look very good. I’m using TAA, but it causes flickering, and I can’t find the right settings to prevent the flickering.

What settings I need for TAA to make it work properly?