http://bugs.winehq.org/show_bug.cgi?id=24928
Summary: WoW 4.x D3D: Water Detail and Sunshafts cannot be enabled fully in d3d9 Product: Wine Version: 1.3.5 Platform: x86-64 OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: directx-d3dx9 AssignedTo: wine-bugs@winehq.org ReportedBy: james.aaron.christie@gmail.com CC: wine-bugs@winehq.org
As the bug summary says. They do not require dx11 mode to be fully enabled. I am able to run "Ultra" water detail and "High" sunshafts on my install of windows XP 32bit. The dx11 renderer has no visual difference from dx9.
The options menu reports that they are disabled for "Graphics related reasons".