Understanding IPD and how it relates to nausea

"DROIDdoesVR" wrote:
Then I went to see my eye doctor and had them read my IPD and they came up with 67mm. I told her I needed as accurate as possible. [...] End result was that my official reading is 67.4mm. So at least for me, the Oculus IPD utility is spot on.

I'm very happy our simple tester was so accurate, but in VR a difference of a millimeter of IPD is really not going to make much difference. Every time you put the Rift on your head you're probably about a millimeter different from the last time anyway.

"DROIDdoesVR" wrote:
Ive only recently started to understand down sampling and how it effects the Rift. Currently from with the NVidia control panel I can set Rift DK to 1440 x 900 which has drastically improved the overall screen door effect and visual feel of certain games(HL2 being the best).

Like many games, HL2 has an MSAA setting, which does the same thing as downsampling, but more efficiently (i.e. higher or more stable framerates - important for VR). I would reset the resolution to the native one (1280x800) and turn MSAA in HL2 up to the max, which I seem to recall is 8x.

"DROIDdoesVR" wrote:
So my doctor wrote some notes to which i will attempt to transcribe here. I just want to know what they mean and how they correlate to Oculus settings.

PD(what she called it)
right eye (od) 33.2
left eye (os) 34.2
Single 67.4

I am not an ophthalmologist, but my guess would be:
"OD" - Offset Dexter - the offset from your nose to your right eye's pupil.
"OS" - Offset Sinister - the offset from your nose to your left eye's pupil.
And then 67.4 is the total separation, which is just those two added together, and what we call the IPD.