January 25, 2018

Oculus Creates a New, Open Source Unit of Time to Measure Frame Rates

Of all the things we expected to come out of the rise of Oculus and the still-burgeoning era of consumer virtual reality, a new fundamental unit of time was not one of them. But that's just what Oculus and Facebook have rolled out this week in the form of the flick, a new definition that subdivides a single second into precisely 705,600,000 parts.

If you use common time units like the millisecond or nanosecond to measure how long a single frame of video appears on screen, you're often left with a fractional remainder rather than a clean, whole integer. This can be a problem in programming and visual effects, where rounding and/or floating point representations can lead to slight imprecision or desynchronization over time. Delivering video frames with perfect timing is also pretty important to delivering a comfortable VR experience.

Read more at Ars Technica

 
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