So AFAIK, right now iris+sodium/fabric. Doesn't have support for PBR (being worked on) the latest public build has self-aware lighting feature added (i have it but the build hasn't been publically published) a mod gave me early copy of it, and the only thing missing is a menu to tweak shaders in game. Since you have to manually edit shader settings. e.g i had to spend 2 hours editing the LIB file inside the complimentary shaders to my liking..