LDraw data files at Brickset

[Nicola]

Nicola, doing this trivial addition to your rendering code would solve your problem.
May I humbly ask you to add it? Then the problem would be gone for good.

What code do you mean? Brigl already does support CCW/CW/Invertnext/double sided etc. It is (almost) fully compilant with the geometry specifications of LDraw, the glitch it shows are from uncorrected files (as discussed here)