This is turning out to be a series in itself! Not much of an update here, more a triumphant fist in the air for when things actually work as they should.

The image on the left is a render of Suzanne from Blender, and the one on the right is a render from within the Windows build of my current codebase. No more distortion! The distortion was caused by incorrectly creating the Quaternion rotations from the x, y and z planes in the Collada model which, when combined with my translate and scale transformations, caused all kinds of weirdness.

I would never have got this far without PIX, I think I quite like it!