Hi qibentie, a couple of things you can try:

- When exporting from MoI in OBJ format, set the Export: option to Export: Quads & Triangles instead of Export:N-gons. Some programs do not deal with complex n-gons very well and can make messy results when attempting to triangulate them.

- When exporting from MoI try unchecking the "Weld vertices along edges" option, some programs also have difficulty reading in OBJ files that are welded.

- Also when using MoI v2, try using the FBX export for going into 3DS Max rather than OBJ or 3DS. 3DS is generally good to avoid since it is a very old format (it comes from the ancient MS-DOS version of 3D Studio way before 3DS Max) and has many limitations in it.

Also when using FBX make sure you install the latest FBX import plugin for Max, the default shipped ones for several Max versions are buggy. You can get updated FBX importers from here:
http://usa.autodesk.com/adsk/servlet/pc/item?siteID=123112&id=10775855


FBX is what I would recommend trying first actually.


Please let me know if none of that helps.


- Michael

VERY THANKS Michael

I use "Weld vertices alone edges" ON, "N-gones" to OBJ not good
I use "Weld vertices alone edges" OFF, "N-gones" to OBJ not good
I use "Weld vertices alone edges" ON, "Quads& TRiangles" to OBJ good but I don't like the Triangle faces---
I use "Weld vertices alone edges" OFF, "Quads& TRiangles" to OBJ good but I don't like the Triangle faces---

USE FBX is all OK---- Thanks-- I Learned more--

Hi qibentie, you're welcome, I'm glad that you have a good solution with FBX now!

It looks like Max's OBJ importer just is not able to handle complex n-gon shapes.

I don't know why, but Autodesk did not seem to make any effort on improving their OBJ importer for many many years. But they have been active in improving the FBX importer. That's specifically why I added FBX export support to MoI, since Max just does not seem to do a very good job with their importers for other formats.

- Michael

so it was FBX + Ngones ?