I requested osmc patches last year for kodi and Sam provided them. Linux changes I puzzled from a huge tar.gz dump. It did work partly but Sam (from OSMC) said it was still work in progress. I just checked and unfortunately OSMC still hasn’t released all required patches for Kodi and linux 4.9.
I don’t have a 3D TV and a handful of users made some tests and it was inconclusive. Some worked others didn’t. I lost interest.
If you wanna work on that be my guest. I would suggest requesting a fresh batch of patches for 3D for Linux and Kodi from Sam. If you manage to do it please send a PR.