http://bugs.winehq.org/show_bug.cgi?id=18993
--- Comment #5 from Henri Verbeet hverbeet@gmail.com 2009-12-27 05:57:13 --- Created an attachment (id=25417) --> (http://bugs.winehq.org/attachment.cgi?id=25417) patch
(In reply to comment #2)
glPolygonOffset(tmpvalue.f/(2.0*4.8e-7),
(*((float*)&stateblock->renderState[WINED3DRS_DEPTHBIAS]))/(2.0*4.8e-7)); /* Changed to fix z-fighting in WoW */
That doesn't look right to me, how does the attached patch work?