https://bugs.winehq.org/show_bug.cgi?id=46624
--- Comment #11 from Alistair Leslie-Hughes leslie_alistair@hotmail.com --- (In reply to smsmithz from comment #10)
I got it working but I had to change out my graphics card from an rx480 to a gtx970. then real time lighting worked perfectly. I'm on ubuntu 20.04 using lutris and wine staging rc6.
What version of wine-staging are you using? rc6 suggests it's a year old.
wine --version