Objects Disappearing When Exporting

[Anonymous]

First of all guys I'm sorry if this is not in the right category but I couldn't find a better one to put it in. The main problem I'm currently having is exporting my scene as a .obj file. There are multiple objects in this file and when I export my file and open it up in another application like Blender, some random parts of my file seem to disappear and I don't know what is causing them to disappear. This does not seem to be a problem with blender reading my file because I have opened the file with other problems and the same problem occurs, meaning the problem probably lies in Maya. Now I know for sure that one reason objects disappear from the obj file format is when faces have more then 4 vertices on them. However, this doesn't seem to be the only case because I have a rectangular shaped face cut in half (consists of a total of 6 vertices) that is for some reason disappearing. I also deleted some grouping and the history of some objects and that made some objects suddenly appear in the obj format but not all of them. I looked on the exporting page for Maya to see if it had any answers but the only thing I saw was that an obj file couldn't have more than 100 thousand polygons in it, and my scene is contains only about 1500...  Here are some pictures of things that disappear.

The original rectangular face in Maya.

and in Blender...

as you can see it isn't there....

Here is my scene in Maya as a whole

and here it is in Blender

As you can see some rooms that I have started making have completely disappeared and I don't know why

.

One more question, is there anyway I can export the textures of my mesh? In the export options I have materials clicked "on" so I thought that would have exported the current materials I have attached to things in Maya....

Thanks for the help in advance!

[Anonymous]

Try to export the meshes (+materials) as fbx. You perhaps need to enable fbx from the plugin window. 

[Anonymous · Accepted solution]

Solved the problem. I tried exporting in the fbx file format and this error came up....

MFnMesh constructor: (kInvalidParameter): Shape has no geometry
MFnMesh constructor: (kInvalidParameter): Shape has no geometry
MFnMesh constructor: (kInvalidParameter): Shape has no geometry
MFnMesh constructor: (kInvalidParameter): Shape has no geometry
MFnMesh constructor: (kInvalidParameter): Shape has no geometry
MFnMesh constructor: (kInvalidParameter): Shape has no geometry
MFnMesh constructor: (kInvalidParameter): Shape has no geometry
MFnMesh constructor: (kInvalidParameter): Shape has no geometry

I decided to take the time to look through all of my objects in the scene and it turned out somehow I had 8 objects had no geometry. I'm assuming it happened when I was combining meshes or separating them... anyways it seems that every object that was after these bad objects in the hierarchy ended up not showing up in blender. 

Once I deleted them and opened it in blender everything worked fine and the textures were even on the objects.

Thanks for the advice Davsee, even though it wasn't that, I'm still super glad you mentioned it.

[diveesh.poojari]

after selecting every object in maya for fbx export to open in substance painter some object are missing

[damaggio]

Clean your history before exporting.

[diveesh.poojari]

Thank you sir

[damaggio]

Let me know if it worked.

[diveesh.poojari]

After clearing the history object is fine but, the UV's are missing

[damaggio]

I don't think you understood what history is or does in Maya , that's why I asked again, a lot of beginners don't understand this core concept and end up losing all their work.

[asmith.copycat]

I tried opening and exporting from a different version of Maya or export nurbs as igs files - igs export handles nurbs alot better than fbx I noticed.