Hello,
I have a problem with cinema 4D R20 64bit.
The program installs fine, and actually renders images (using CPU renderer) just fine, the only problem is the black viewport and a warning about lack of OpenCL support (I'm on ArchLinux with Intel GPU [UHD 620]).
wine --version
wine-4.18
Error I see in the console:
fixme:msvideo:DrawDibDraw wFlags == 0x00001000 not handled
After some googling it looks like it was fixed at some point, maybe it's some regression in wine?
Also, when I opened settings I got this warning message and I discovered that opengl is not being detected at all.