There’s Pink and Green glasses support and one can invert the left and right. However, I have found a type of pink and green 3D glasses that give even better color reproduction than the typical cardboard pink and green 3D glasses. They are called Trioviz Inficolor glasses and they have plastic frames. The differnce in the colors I can perceive with them compared to the cardboard ones is like night and day.
However, I’ve been mostly only using them with some games (using shader injection techniques) because only there do I have the options necessary to tailor the anaglyph output to the Trioviz Inficolor glasses. Typcially, with the pink and green effect bundled with kodi and its hardcoded settings some of the effect is conveyed but since it’s tailored for darker lenses things that are too close to the screen or too far don’t resolve into 3D.
The lenses on those aren’t tinted as dark as the typical cardboard ones so I think an opacity slider for the anaglyph (either that or the ability to control the saturation, whichever is more easily achieved) effect one for each eye should help. So that way the lightness of the effect on screen can match how dark the lenses are tinted on the inficolor glasses.
Also, setting strength of effect or how far the left and right eye are from each other seems to help quite a bit in some games I’ve tested them out with.
Neither of those seem to be available as settings anywhere in Kodi so I would like to formally make this a feature request… Thanks in advance.