http://bugs.winehq.org/show_bug.cgi?id=30323
--- Comment #5 from John P Sims jsims2359@gmail.com 2012-06-23 01:34:02 CDT --- Still present in wine 1.5.7.
Additional notes:
Occurs when API is set to "DirectX 9" and shaders are set to "High". If API is set to "DirectX 9" and shaders are set to "Medium" or lower, graphics are fine. If API is set to "OpenGL", graphics are fine regardless of setting (including Extreme Tessellation).