http://bugs.winehq.org/show_bug.cgi?id=26468
Roderick Colenbrander thunderbird2k@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED CC| |thunderbird2k@gmail.com Resolution| |INVALID
--- Comment #5 from Roderick Colenbrander thunderbird2k@gmail.com 2012-06-05 23:36:08 CDT --- I'm referring to the perceived OpenGL image quality issues. When running in OpenGL mode the game is pure OpenGL. There is no real emulation going on. Yes, the game doesn't look that nice especially in the sky. That could be some color depth issue. Further no texture filtering looks to be enabled. Based on the log it indeed looks like most GL texture calls use NEAREST filtering.
I don't think there is any Wine issue.