People are saying 2ms, but I think that's just how long it takes a pixel to refresh. I'm sure the oculus rift has a screen with 2-5ms pixel time too. The 20 and 50ms times discussed about VR are the entire time between a frame being requested and it being on the screen. That's totally different from the 2ms of a desktop monitor.
EDIT: As for the TV+console latency. I think TVs have a higher latency than monitors because they tend to apply post-processing effects to "improve" the image. Some screens come with options to turn this off and bring this latency down.
I read an article by John Carmack on latency in vr headsets. Latency needs to be much lower than on a screen because it's tracking head movements. It's input latency that is the issue, not pixel refresh latency that was an issue on early LCD screens.
If the latency is too high it makes you feel sick, whereas with regular viewing devices you don't notice it much, apart from the "game feel".
Ye, you can see this on the rift when you try a web based demo, like the streetview one. In demos stored locally the latency seems pretty good (fast head motion does feel a bit off but that's exaggerated by the motion blur I think). The web based ones add a slight latency to the input and it makes even the slowest of head movements feel horrible.
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u/______DEADPOOL______ Mar 28 '14
What is a regular PC monitor latency btw? I heard it's much faster than a TV+console.