Mesh importing with unnatural holes

[albusseverus]

Hey, so I’m trying to import this model of a bed with a blanket on top of it into roblox. The problem is that every time I import it, it has unnatural holes in it that were not in there in blender itself.

(In blender)

(In game)

I have tried recalculating the normals, flipping the normals, triangulating it, Merge by distance (0 vertices were removed), and limited dissolve (which only made it worse). Additionally, I have also tried to tick the double-sided option, which covers some of the holes but not all of them, meaning that it doesn’t fix the problem.

I honestly have no idea what to do, any help would be appreciated.

[hpgames16 (HpTheKing)]

Have you tried restarting Roblox Studio?

[albusseverus]

Yes, that didn’t really do anything.

[oatsz (Austino)]

In blender, try enabling face orientation to see if certain faces are flipped.

If this is the case you can manually flip the normals by selecting the faces.

[albusseverus]

Hey, just tried this solution. It didn’t really do anything, as the mesh still looks the same when imported into Roblox.

[Gucci_Dabs222 (Euphorian)]

I’ve had the same issue happen to me a few minutes before this post, but I somehow managed to find a way around it.

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Just as you, the mesh looked fine in Blender, but had unnatural holes in studio.
Blender (no holes):

Studio (with holes):

I went to Blender and re-exported it and checked off “Triangulated Mesh:”

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That solved it for me, but I’m not too sure if it’ll work for you due to your very different mesh.
Good luck!

[albusseverus]

Thank you so much. This solution completely worked.

The only question I have is if you applied the triangulate modifier before you ticked that option and uploaded it.

[Gucci_Dabs222 (Euphorian)]

@albusseverus

The only question I have is if you applied the triangulate modifier before you ticked that option and uploaded it.

I did not apply the triangulate modifier at all, I simply just ticked the option.

[Hazelfluff]

This should work for everyone! It’s because your mesh probably contained N-gons wich some software doesn’t acknowledge (Im not sure why). This also works when importing meshes to texture in procreate!