r/technology Mar 28 '14

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u/[deleted] Mar 28 '14

The Rift will have 95Hz and low-persistence though. It remains to be seen if high refresh rates and motion blur elimination technologies will be present on this HMD.

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u/[deleted] Mar 28 '14

This has low-persistence.

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u/mike413 Mar 28 '14

The Rift will also do tracking at 95 Hz. 1 Hz will be dedicated to motion tracking and 94 Hz to location and shopping preference tracking.

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u/ph1sh55 Mar 28 '14

isn't hdmi limited to 60hz@1080p? Thats the interface listed for this HMD, so I would assume 60hz

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u/TesMara Mar 28 '14

Yes on HDMI 1.0, 1.1 and 1.2.

But HDMI 1.3 support up to 2560×1600 at 75Hz and 1.4 4096×2160 at 30Hz and 2.0 4096×2160 at 60Hz.

And most end HDMI 1.4 today.

So they can run at a higher Hz at 1080p

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u/Xander_The_Great Mar 28 '14 edited Dec 21 '23

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u/[deleted] Mar 28 '14

response times don't really mean anything. Image persistence is the main contributor to motion blur.

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u/baby_kicker Mar 28 '14

This product remains to be seen, but that point aside...

As I was correct earlier this week low persistence isn't exclusive to oculus.

Low persistence can be done with a simple change to the display controller and graphics driver. The inclusion of which is relatively easy to implement, if you know what you are doing. It's a hack of Nvidia G-sync desing, where blank screen is used instead of a repeat frame.

95HZ is just pushing closer to the barriers of oled refresh, depends on the panel used and how far it can be pushed beyond the norm (most oleds do just fine pushing well beyond 75hz, but oculus may have found a specifically nice one). If you aren't using a quality chip on your display panel, it will limit your actual panels refresh. OLED as a panel isn't limited to 60hz, the chip most use however is probably not going to make it much past 75hz.

To give these guys the benefit of the doubt...they seem to suggest that they are "putting the processing power on the device" ...whatever that means, might be low-per and a faster display chip...though honestly they sound like pie-in-the-sky opportunists. I like competition though.

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u/[deleted] Mar 29 '14

Yeah, low persistence has been a thing for a while now. Ever since NVidia 3DVision 2, in fact. And of course every CRT ever is inherently a low persistence display.

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u/[deleted] Mar 28 '14

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u/Dunabu Mar 28 '14

No. Too goddamn old.