Hi! As a newcomer to this lovely library, it took me a long, long time to realize that my objects weren't exporting well from maya, and showing up as not well formed, simply because I didn't delete object history before exporting (I believe that's the case for .obj export/import from maya although I haven't tested it thoroughly). Once I made sure I deleted object history everything worked out.

I think a clarification in the readme about the need to do so would prove extremely helpful for others in my situation. Thanks!