Interpupillary distance: Difference between revisions
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'''Interpupillary distance''' ('''IPD''') is the distance between the pupils of your eyes. There are two types of IPDs: | [[File:Average IPD.png|thumb|250px|A bar chart of average IPD in humans]] | ||
'''Interpupillary distance''' ('''IPD''') is the distance between the pupils of your eyes. There are two types of IPDs: Real IPD and Virtual IPD. | |||
Most adult humans have an IPD of about 63mm. | |||
IPD can be measured in a number of ways. | |||
Some VR headsets have an IPD adjustment. The [[Oculus Rift DK1]], DK2, and HTC Vive have manual IPD adjustment. And the [[Valve index]] too. | |||
==Mirror measurement== | |||
IPD can be measured using a mirror. | |||
It can be measured by standing close to a vertical mirror, and close one eye at a time. Each eye look directly into that eye on the mirror, use a marker to mark a spot on the mirror where the pupil is. The distance between the dots is a measurement of IPD.<ref>How to measure your IPD with a mirror at MTBS' Immersipedia. https://web.archive.org/web/20140328140034/http://www.mtbs3d.com/wiki/index.php?title=How_to_measure_your_IPD_with_a_mirror</ref> | |||
==Real IPD== | ==Real IPD== | ||
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Developers can change the sense of scale by changing virtual IPD. They can cause the environment to increase or decrease in size by changing the virtual IPD. | Developers can change the sense of scale by changing virtual IPD. They can cause the environment to increase or decrease in size by changing the virtual IPD. | ||
==References== | |||
{{Reflist}} | |||
[[Category:Terms]] | [[Category:Terms]] | ||
[[Category:Human visual system]] | |||