In order to achieve a genuine and lasting sense of presence, total system “motion-to-photon” latency must be less than 20 milliseconds. This requires optimization across many layers of physical, virtual, software, optical and electronic components.

latency-chain

Further, there are unforgiving performance metrics that the system must possess in order to achieve and maintain presence. Missing any one of these performance targets will result in a total system failure.

The detailed specification is defined in the images below:

[images courtesy Oculus VR. From Oculus Connect, Sep 19-20 2014]

tracking

latency

persistence

resolution

optics

Mix all that together,
and what do you get?

presence

 

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