[Wanilton]

@Skank, well XBMC gotham have support 3D SBS and TAB, for correct cover, need only have 3dbd word in file name, example avatar.3dbd.mkv.

For filter I think is better put 3d contents, in separate folder, and filter for path using smartplaylist, I don´t think it´s possible have only one item for 2 types files in collection, in this normal situation you have one for 2D and other item for 3D.

Other flags available for xbmc auto recognize 3d format when press play

m_stereoscopicflags_sbs = "3DSBS|3D.SBS|HSBS|H.SBS|H-SBS| SBS |FULL-SBS|FULL.SBS|FULLSBS|FSBS|HALF-SBS";
m_stereoscopicflags_tab = "3DTAB|3D.TAB|HTAB|H.TAB|3DOU|3D.OU|3D.HOU| HOU | OU |HALF-TAB";


You can also define your own flags in advancedsettings.xml file.

Another option is to specify the 3D mode in the mkv header itself.

Then in xbmc system > settings > video output > set preferred stereoscopic mode to sbs or ou or same as movie.

In settings > video> playback > playback mode of stereoscopic files > preferred mode.

Now when you click a 3d file the gui will automatically switch to 3d mode.