Re:Day One with the Oculus Rift DK2
by jimrandomh on Saturday July 26, 2014 @02:43PM
(#8090387)
Does anyone have data on how big fonts have to be, to be legible on a DK2? Ie, if you embed a terminal in a virtual world, and give it about 30 degrees of horizontal space, how many characters will that fit?
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It's a 90 degree FOV, Each eye gets half of 1920, then divided by 3 (30°/90°), you'll get 1920/(3*2) = at least 320 horizontal pixels to work with. There are more pixels in the center due to how the distortion works, so in practice a little more than 320.
(edit: actually, if I recall, the 90° FOV on DK2 is actually a diagonal FOV, so you are looking at a ~78° horizontal FOV)
i remember reading up on Forrest Reiling's master thesis:
source, https://github.com/evil0sheep/motorcar
an abstract with link to video, http://www.phoronix.com/scan.php?page=news_item&px=MTcyMTI
unsure of the specs as per legible font size and number of characters or lines, also, i believe it was on the DK1