OBJ Exporter Behaving Weirdly

Hey so I was thinking of doing a ROBLOX short movie and I came across a weird behavior in the exporter. When you export things it doesn’t connect all of the vertices…even though they’re at the same exact position.

Here’s an example.
You see the original mesh here.

Now here, I can pull the faces out of it and they aren’t connected to the faces right beside them.

I mean I can merge them myself, but with 9184 verts in this plane(aircraft) it would be tedious to do. The reason I want to edit the mesh is to clean up some of the edges that were tough to do in ROBLOX.

Also, sometimes the verts do connect. I exported a wedge and half of the faces were connected at one vertex, but the rest weren’t. Very very odd.

I’d appreciate it if this could be fixed, I had an animation craze today and felt like going back to my animating days using some ROBLOX assets.

Edit: Also a lot of normals are facing the wrong way. If you look at the images, look at the faces that are a “blackish” grey instead of a “lighter” grey and the darker faces are the incorrect normals. A LOT of incorrect normals.

Edit2: Remember (above) I said some normals were flipped? This is because those specific meshes got exported twice. On top of eachother. One version inverted, one version not inverted. This only appears to be happening with a specific ROBLOX mesh though.

Pretty sure the .OBJ exporter for ROBLOX just exports the faces as seperate polygons, not connected or anything.

Not sure if that’s intended or not, but if it is, you’ll have to merge them manually.

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After a bunch of cleanup, hooray

(Please excuse the JPEG)

I learned the other day that the .OBJ files are not composite while I was working on a project. I think this is intentional.

Oh all right. If your 3D editor has a “Remove doubles” command for vertices then you should be good. The normals are still wonky though. Either way I’m having a ton of fun right now when I should be studying (see below)

Anyhow just thought I’d report the weird normals bug. I’ll stop posting here now as there’s not much else I can say. It happens for all types of parts but not all the time.