https://bugs.winehq.org/show_bug.cgi?id=43239
--- Comment #10 from Manuel dev@mfxbe.de --- (In reply to Józef Kucia from comment #8)
Created attachment 58842 [details] Patch
Please test if this patch fixes the issue.
Doesn't work for me. I've applied all patches listed on the WineHQ page of Witcher an your new one, the dark ground is still there.
Because I sometimes make stupid mistakes while appling patches I just checked it manually and the patch seems to be applied.
I use a NVIDIA card and driver.