https://bugs.winehq.org/show_bug.cgi?id=40126
--- Comment #4 from Diego diegoandino@gmail.com --- I used apitrace to record openGL calls, found something interesting.
If I replay the trace file with hardware rendering and same drivers I used with Wine, I see the same glitch, however, if i launch apitrace with LIBGL_ALWAYS_SOFTWARE=1 it renders like it was supposed to, no glitch. This with radeonsi open source drivers. Mesa bug?