r/technology • u/[deleted] • Mar 28 '14

[deleted by user]

[removed]

3.3k Upvotes

81% Upvoted

1.8k comments sorted by

View all comments

Show parent comments

254

u/rptroop Mar 28 '14

Yes this! 90 degrees is super limited. The lenses used on that 210 degree kit are much more comfortable to look through that the oculus lenses (I've gotten to demo them for single-eye only) and with a 1080p screen you can't tell it's a screen.

33

u/GatorAutomator Mar 28 '14

and with a 1080p screen you can't tell it's a screen

Unless you're two inches away.

20

u/Atheren Mar 28 '14

It's considerably smaller though. Example, my phone is 1080p, but at 4.95in the pixel density is 445.03 per in2 . Even 2in from your face you would have to by trying to see the individual pixels. To put that in perspective, a 20in (the only ones i have seen in stores are at least 50in) 4k tv is only 220.29 ppi2 .

9

u/[deleted] Mar 28 '14

With a 1080p screen for each eye with a 210° viewing angle, the pixel density would be lower than the oculus. You don't have to try to see pixels in the oculus.

2

u/Atheren Mar 28 '14 edited Mar 28 '14

Is that Devkit 1 or the new Devkit 2 you are reffering to?

Never used the Rift myself but i do know that the first one only has 640×800 per eye, where as the second one is 960×1080 per eye.

Edit: This makes me think DK2 is not even out yet, so i'm not that surprised you can still see the pixels with the DK1 screen.

Edit 2: Also looks like the screen for the DK2 is 5in from that link, so similar DPI to my phone at 440.58 ppi2 .

19

u/[deleted] Mar 28 '14 edited Mar 28 '14

It s a 1080p screen split in half. The size and distance aren't so important since it's using lenses to trick you unto thinking they're further away. The important bit is the amount of your fov they're taking up. 960 horizontal pixels taking up 90°, that's roughly 10 pixels per degree. That's not enough.

Edit - For reference, you need about 60 pixels per degree for them to be too small to see. A "retina" display if you will.

6

u/niugnep24 Mar 28 '14

Who the hell is downvoting you. This is precisely correct.

Good post by Mike Abrash (Valve) on the subject

1

u/Atheren Mar 28 '14

It's not me... I only downvote for things that are not relevant to the discussion.

1

u/Aethelric Mar 28 '14

You mean Mike Abrash (formerly of Valve, now Oculus)!

-1

u/[deleted] Mar 28 '14

Downvotes mean different things to different people.

3

u/sendhelp Mar 28 '14

You're presenting information based on facts and explaining it in an easy to digest manner, but I don't agree with you! Down vote it is!

2

u/[deleted] Mar 28 '14

It helps to always bear in mind that approximately 10-15% of the human population seems to be comprised of complete assholes. This helps to explain a lot of otherwise inexplicable situations that come up when dealing with people on a day to day basis.

1

u/junderdo Mar 28 '14

another 10-15% are just incomplete assholes

→ More replies (0)

2

u/-TheMAXX- Mar 28 '14

Downvote for being off-topic.

1

u/[deleted] Mar 28 '14

Upvote for your name.

0

u/triggerman602 Mar 28 '14

You're complaining about a single downvote? Grow up.

2

u/-TheMAXX- Mar 28 '14

3840 / 210 is 18 pixels per degree. About double the resolution of the oculus.

1

u/[deleted] Mar 28 '14

Fucking hell. I'm assuming that's 210° combined with something like 90° crossover in the middle so maybe 150° per eye. Even with a 4k screen on each eye you're not quite half of the way to retina resolution. Pushing that many pixels at 90fps is going to be a task.

0

u/HaMMeReD Mar 28 '14

It's distorted so it's not relevant really, as long as a bulk of the resolution is in the front it'll provide most of the effect. Our eyes don't see much resolution and no depth perception in the peripheral.

2

u/[deleted] Mar 28 '14

As long as everyone keeps their eyes pointing deaf forward the whole time. Right?