Kodi DSPlayer – DirectShow Player for Windows
I can confirm that decoding 3D-MVC (in MKV) definitely works with internal filters. madVR sees the 3D, and successfully switches the OS's 3D switch, so I get frame-packed 3D output to my TV.

I did have to re-rip with a more recent version of MakeMKV. I had some ripped quite a while ago that when inspecting with mediainfo, showed as being stereo, but still wouldn't be recognized as 3D on playback. Once re-ripped, they started working. It was kind of a strange deal.

Messages In This Thread
Lockup on STOP issue resolved! - by MKANET - 2015-04-11, 21:59
RE: 4G aware patch - by MagikMark - 2015-09-08, 03:27
Alt-F4 no longer quits - by JeffA - 2015-10-31, 20:38
RE: Kodi DSPlayer – DirectShow Player for Windows - by puithove - 2016-03-06, 15:32