How to set IPD?

"spyro" wrote:
Hi there,

I wonder how can I set my IPD in all the Unity Demos and in Oculus World? When pressing space I can see a default setting of 64 mm (I have 59). Does anyone know how to change this?

Thank you,
Spyro

In Unity, hit space bar to bring up stats dialog, then use the + and - keys for IPD ( or it may be the square brackets keys...going from memory). Something to note, though, is that it is my opinion, from experience, that you're almost better off leaving Unity's IPD at 64mm so that it matches the separation of the lenses (which are fixed at 64mm). I found that it's more comfortable on my eyes if two adjacent IPDs of the three IPDs line up (in order, from screen to eyes: Unity IPD = 64, Lens IPD = 64, and your eyes at XX). If I change the Unity IPD, then the photons bend twice before reaching my eyes, which seems to compound eye strain. ( note that that was my very unscientific explanation of why it hurts my eyes more when I set Unity IPD to match my eyes).

Edit to add: it's not a case of the photons bending twice, but rather the angle that they have to bend increases...I think. Also, let's us know if you find the same thing (increased eye strain) when you set Unity's IPD to match your eyes. Maybe it's just me.

Note that the ideal solution would be adjustable lens separation so that all three parameters can be lined up. Maybe in Rift, V.2...?