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IPD recording and restoring
Hi all,
My intent was to allow for multiple users to try the Hololens by:
o Having a user calibrate
o Writing down their IPD from the Device Portal
o When that user needs to use the device again, set that setting.
This would seem to be similar to what was done for our Holophotos at //BUILD, but the Device Portal says this:
Enter your IPD to adjust the stereo rendering offset for this device. The current value is specific to this device, and shouldn’t be used for any other purpose.
[ ] mm
|Save| |Reset|
See the bolded section. Is it actually true that the current value is not the value set by calibration? If that's the case, is there another way to easily store calibration for multiple users?
-thanks
-e
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jbusch
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I believe it's saying it's an IPD calibrated for optimal HoloLens usage. Your eyes have different IPDs at different distances. So the calibration process for HoloLens should be tailoring the IPD for that particular user and that particular device.
It's basically a way to say, don't use this number for anything but this HoloLens. You also might get different IPD values on a different HoloLens. Or it might be different than what another device might report (e.g. Oculus Rift).
But if you should be safe to store the IPD value each user was calibrated at for that HoloLens. And then be okay to use it again later on that same HoloLens.
6
Answers
I believe it's saying it's an IPD calibrated for optimal HoloLens usage. Your eyes have different IPDs at different distances. So the calibration process for HoloLens should be tailoring the IPD for that particular user and that particular device.
It's basically a way to say, don't use this number for anything but this HoloLens. You also might get different IPD values on a different HoloLens. Or it might be different than what another device might report (e.g. Oculus Rift).
But if you should be safe to store the IPD value each user was calibrated at for that HoloLens. And then be okay to use it again later on that same HoloLens.
I have run the calibration numerous times on three devices. Two of them generate the same same value repeatedly within a tenth of a mm, but the third is always 3mm less than the other two.. interesting.
UX Designer @ Anki
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