Supporting virtual reality displays in Linux

The lenses in the headset are set up so the displays appear to be roughly 1 meter away, so it should be about the same as focusing on a regular monitor. You can wear the headset on top of regular glasses too (though you might need to move it slightly away from your face, which reduces FOV).

(I get minor problems if I pick up a virtual object and hold it close to my face (like <20cm), because the parallax is telling my brain that the object is close and so my eyes should focus nearer, but then the displays are still at effectively ~1m and are no longer in focus. If I close one eye then it removes the conflicting signals and I can focus fine again.)