Exported MeshParts have jaggered Edges

Hello there,
I am currently re-creating New York City (with my own smaller sized map and design, but heavily NYC inspired), combined with GTA IV map inspirations, and I am currently working on what would be JFK Airport.

  • What are you attempting to achieve?
    To make performance better and reduce part count, I export my models and turn them into MeshParts (not from blender, straight export from Roblox Studio, and then Re-Inserted as the MeshPart)

  • What is the issue?
    In the screenshot below you can see the actual light model (it’s not finished, so it of course doesn’t look like it, but the actual one is the clean one), while the EXPORTED ONE IN THE MAIN FOCUS, has jaggered edges all over it.

  • What solutions have you tried so far?
    None, I never encountered this before!

I don’t have any other detail

*EDIT: I tried importing it to blender, and it looks exactly the same as if I’d re-import it into ROBLOX. Please help!

PS: IF YOU NEED MORE EXPLENATION, PLEASE LET ME KNOW!

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Did you lower the polygon count? If so maybe that’s the reason? The mesh could have also gotten corrupted somehow in the process of re-importing it.

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Hey, sorry for the late response. No, as it turns out even just exporting for example a Cylinder will end up with jaggered edges.

I re-installed everything and I still have the same Issue :face_with_head_bandage: :anguished:

You should definitely not do this.

You’ll only achieve instance count reduction this way (which is good), but you will also get unreliable normal data which can cause smoothing issues, unexpected geometry, overly large vertex and face counts, etc, all of which makes this method not worth it unless you are doing it on simple, small models.

In your case, the best course of action would be to export the model, import it into blender and remake the model with with actually useable topology. This will take some time to do, but the result is worth it.

You can export any roblox model into blender and look at it in edit mode, try to move some faces or vertices around, you’ll see the issue.

I hope this helped.
Good luck.

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Well, I don’t know how to work with blender, and I don’t have the time to learn it, plus I never ran into the issues you explain, so I guess it’ll stick with that.

Wait, I just realized:
Is this maybe an issue that you listed?

Also, when exporting the model and importing it into Blender, it also has the jaggered edges… (One thing I know how to do is view the model in Blender, but that’s all I know)

Hey, sorry to disturb once again:
Are there any alternatives to Blender that may be a bit easier, or is there a workaround for the issues you listed?

Because it worked fine with everything else you see in the Picture, it’s all exported and re-imported MeshParts, and I don’t have any issues with them.

Set the RenderFidelity to Precise and see if that works.
image

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Thank you, unfortunately I have tried this, but it doesn’t make a difference. The same jaggered edges appear when viewing it in Blender

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Can you provide a comparison of how the part should have looked like vs how it looks now?

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Sure, hold on. I’ll be with you in about 5 minutes

actual

How it should be


How it is right now…

Plus, I made this aerobridge with no issues with the same way I made the lights, its made out of meshparts that would be multiple loose parts, and it worked just fine, but with the lights all of the sudden, it has these jaggered edges…

Post the object file here and let me see if I can get it to look normal.

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test.obj (1.0 MB)

The most frustrating thing is that if you manage to fix it (which I am grateful for) I can’t keep begging you to fix stuff for me, there has to be SOME solution to this… Except blender…

The solution is don’t use blender to merge parts. Keep them separate.

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Well I never used blender for anything for that matter.