Hi Burr that kind of looking thing where triangles seem to be leaking out of an n-gon outline usually means that something went wrong with a process of converting n-gons into triangles.

In order to convert an n-gon into triangles, one edge of the n-gon will be connected to a point somewhere else on the n-gon. If it's not handled carefully then the connection to that other point could cross over the outside area of the n-gon if it's a complex concave type shape.

That's something that can tend to happen pretty easily in n-gon triangulation functions, it's not all that easy to make a really robust triangulator.

If the rendering program that you are exporting to has those kinds of problems in handling complex n-gons, then you'll need to use the "Export: Quads & Triangles" option to do the triangulation in MoI instead of relying on the rendering program to do it.

- Michael