**Update: **After consolidating NVIDIA’s low level headers from the different integrations, it turned out pretty straightforward to port VXGI2 to 4.20.
It compiles fine on my system, but it turned out that my NVIDIA board is too old. Since I can’t afford a recent NVIDIA card (.3 level / ), I can’t test it myself. So testing and pull requests by others are more than welcome. Until then branch will be experimental and stay seperate from the main branch: