White outline on meshes after updating to 5.5?


I updated my project to 5.5 and now some static meshes have this white outline. It’s unaffected by lighting.
Any ideas how to get rid of it?

Edit: It’s only when I enable Nanite on a mesh. This include geometry collections too.

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Did you find a fix? I have the same issue. But even with Nanite disabled.

5.5 on Mac. Render settings pretty much exhausted in MRQ. And tried a lot of different things in the settings but to no avail. Seems to be a 5.5 bug? But not a too many people mentioned it so far.

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I have the same problem. I tried many things, but unfortunately I couldn’t find a solution. These lines only appear when rendering the animation and are visible in the final clip.

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Hm. Are you also on Mac? I have also tried SO MANY things. In the MRQ setting, post process volume, camera, editor… This is how it looks like for me.

Yes, I have this problem on mac, but I read that it also applies to windows.


Unfortunately, updating to 5.5.1 does not solve the problem…

Yeah. I also just tried. Annoying.

I’ve been trying to get my hands on a repro if anyone wants to send one over. A renderDoc or dumpGPU would be great as well but a repro would be the best.

Hey Shaun, thanks for having a crack at it. Like mentioned we are on Mac so renderDoc is not an option. Here is a dumpGPU while ‘rendering remotely’: Unique Download Link | WeTransfer

Let me just summarize real quick:

  • White, dotted outline appears on renders from the Movie Render Queue(in preview window and on final renders)
  • does not appear in the viewport
  • the outline surrounds meshes ‚in focus‘ of the camera, in my case the house and the EasySnow flakes, not the landscape
  • nanite on or off does not influence it
  • MacOS, UE 5.5.1
  • MRQ settings exhausted
  • Camera, Post Process Volume settings exhausted (Bloom etc. off)
  • Anti-Aliasing settings in MRQ or Editor don’t seem to change anything
  • i opened a new demo project (car) and the same thing happened on export

Let me know if you need more info or testing!

Or in other words, for example:

  1. Open 5.5. or 5.5.1. on MacOS
  2. New Project: Automotive etc.->Photostudio
  3. Open the Sequence
  4. Open the MRQ to export the sequence
  5. standard settings or custom don’t change the outcome
  6. export
  7. witness the dotiness

So everyone here is on a mac? Anyone seeing this on a PC? Also does this happen in PIE as well or only in MRQ? I’ll have to try and scare up a mac somewhere.

PIE looks fine. Does not appear there. I don’t know about @Resolve. But me and @marcin_ve are on Mac, yes. Not even sure if it is the same bug as Resolve mentioned that turning off Nanite solves this for him. This is not the case for me. (Also apart from fact that I can turn off and on Nanite but I don’t actually have it on Mac anyway.)

@Resolve Can I get a dumpGPU from you?

Thank you for this! Was this dump taking while rendering in MRQ? Or just in the editor? Meaning was this dump taken while the white lines were there? Its not in te dump.

h

Can you all try

r.Tonemapper.Sharpen 0

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Hi I forgot to update this, but setting “r.VRS.NaniteEmitGBuffer=0” makes it go away if I remember correctly. (In my case, at least)

Thanks Shaun, that did it for me! Not the Nanite command.

It works… great! Thank you for your help!

Thank you! I can finally export a shot!

Glad to hear it solved it. Now we need to figure out why it only happens on Mac, :sweat_smile: