Hi Rhumba, so are you using the new Modo 301 for this test?

I didn't have a chance to actually test the vertex normals, so it looks like something needs to be flipped around. I'll post a test file with it corrected in a minute, if you could please test it out.

For the moment in the mapping options you should probably be able to see a "vert_normals1", "vert_normals2", etc... mapping channel defined somewhere that contains the vertex normals, if you delete those it should be restored to just regular polygon normals but that will be better than reversed normals.


> This isn't a case of each vertex having just a single normal in the .obj is it?

I don't know, I haven't been able to figure out why Modo mangles OBJ imports so badly, it just seems to have quite a few bugs in it. You can expand the mesh options dialog and uncheck "Weld vertices along edges", which will generate a somewhat more simple structured output with less shared stuff between faces.

- Michael