strange line on render

Development Rendering
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1

Hi there !

I get this strange dark lines appearing on every render I make (allways the same frame)

I did mute all the effects and lights and I still got this annoying lines…

Where do you think it could come from ?

I am rendering in UE5.5 with movie render queue (HD - aa 1 - 8)

Thanks !

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2

What are your anti aliasing settings in MRQ?

3

Anti-aliasing settings :

spatial sample count > 1

temporal sample count > 8

override anti aliasing is checked

anti aliasing method is set to none

I do need motion blur, using serveral particles systems… ://

4

Don’t set the anti aliasing method to none, you’re basically telling it to not use anti aliasing but just average out issues using just info accumulated over several sub frames i.e. temporal samples, I made this same mistake, you’ll get a lot of artefacts on edges and fine lines. This might not solve that specific issue though, what might is increasing the temporal samples.