Hi Kevin, thanks for reporting this FBX issue!

> However if the normals face inwards and you import into
> max, once you flip all the polygon faces (in max) the crazy
> patterns start again on each polygon.

From your description, it certainly sounds like a bug in Max's flipping function.

Can you do a test where you create a mesh directly in Max, export it to FBX, then re-import and try flipping it? If that runs into the same problem then that would verify it.

Unfortunately it is not too unusual for polygon modeling programs to actually have bugs in their flip functions when they have kind of tried to "bolt on" vertex normal support when it was not initially supported. They sometimes forget to flip the vertex normal data at the same time as the polygon orientation flip.


> As far as I know there is no way of knowing which way a surface faces in MoI.

No, not currently but I do want to add this though.

- Michael