[Dennis]

Okay, one last test and this should give us something we can pick apart.

I've attached 2 files, one export from LightWave and one from AC3D, both of a single triangle with a red material applied, both around 30 units square on the XZ plane so scaling shouldn't be an issue.

Gus - can you try exporting these, and verify whether the LW triangle passes and the AC3D triangle fails?

If so, this will be a very good file to check for diffs with, as both files contain very little content and are much easier to compare than files with lots of geometry (like the earlier cylinder tests).

Thanks