Motivation for this change

Fix the build of the package which currently fails on master and 20.09. Bumped to a new version since this version does not require OpenCL nor Cuda to be present during compile time. Both are detected dynamically during runtime. However, the executables must be compiled such that OpenCL and Cuda are potentially supported. If OpenCL or Cuda is not present during runtime, the CPU is used as a fallback.

Notice: I was not able to verify that OpenCL or Cuda works. I do not have a working configuration for OpenCL and do not own a Nvidia card. The software runs fine even if OpenCL and Cuda are not detected.

Tested the UI executable of LuxCore with

result/bin/luxcoreui $LUXCORE_SRC/scenes/psor-cube/psor-cube.cfg

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.