Search found 8 matches

by xeos
04 Jun 2020, 12:47
Forum: Input Lag
Topic: Use a regular raspberry pi to measure input lag with millisecond accuracy
Replies: 7
Views: 538

Re: Use a regular raspberry pi to measure input lag with millisecond accuracy

In the monitor/display review sites and such, input lag is the term for it - but perhaps in the gamer community it's called display lag? I'm not a hard core gamer. In any case it doesn't pay to get hung up on terms; to be clear: this is a device/method that measures how long it takes the display to ...
by xeos
02 Jun 2020, 17:16
Forum: Input Lag
Topic: Use a regular raspberry pi to measure input lag with millisecond accuracy
Replies: 7
Views: 538

Re: Use a regular raspberry pi to measure input lag with millisecond accuracy

Indeed, yes, averaging. That does the job. It's actually a bit more than that - you'd have to average a *LOT* to get decent data without using my technique. If you wanted to use a 60hz camera, anyway. But by measuring the extent of the vertical bar, 5-8 samples seems to be enough, empirically. I'd ...
by xeos
02 Jun 2020, 16:12
Forum: Input Lag
Topic: Use a regular raspberry pi to measure input lag with millisecond accuracy
Replies: 7
Views: 538

Re: Use a regular raspberry pi to measure input lag with millisecond accuracy

However, it won't be millisecond accuracy with a 60fps camera. You need 1000fps for millisecond accuracy. That's actually the part I'm pretty pleased about: yes you can get millisecond accuracy with a 60hz camera. At least 1-2 millisecond, anyway, with averaging. https://alantechreview.blogspot.com...
by xeos
02 Jun 2020, 16:07
Forum: Input Lag
Topic: Use a regular raspberry pi to measure input lag with millisecond accuracy
Replies: 7
Views: 538

Re: Use a regular raspberry pi to measure input lag with millisecond accuracy

Yep, similar. Great minds think alike? Though, by generating the appropriate test signal (in this case a bar) the temporal resolution is much better. I like that you can measure your method in actual games but that does muddy up the contributions of mouse polling, game engine, and display pipeline v...
by xeos
02 Jun 2020, 14:40
Forum: General — Displays, Graphics & More
Topic: >>> VOTE!!!! Ideas To Help Blur Busters!
Replies: 16
Views: 61633

Re: >>> VOTE!!!! Ideas To Help Blur Busters!

I don't mind ads - and personally, I think that clicking on them is how one should tip websites that you like. Google does a decent job of showing relevant ads, so it's really not an imposition.
by xeos
02 Jun 2020, 14:07
Forum: Input Lag
Topic: Use a regular raspberry pi to measure input lag with millisecond accuracy
Replies: 7
Views: 538

Use a regular raspberry pi to measure input lag with millisecond accuracy

For anybody who wants to measure input lag but doesn't want to shell out for a leo bodnar, time sleuth, or mod their OSSC there's another option that just requires a raspberry pi (zero). They can be had for $5 if you don't already have one. The other requirement is a camera - 60fps or higher (high s...
by xeos
02 Jun 2020, 13:39
Forum: Input Lag
Topic: New device: GILT Game Input Lag Tester
Replies: 71
Views: 27832

Re: New device: GILT Game Input Lag Tester

What ever happened to this project? I found a work in progress website, but no more recent forum posts...
by xeos
12 Jul 2018, 15:23
Forum: General — Displays, Graphics & More
Topic: Best cheap IPS LCD option?
Replies: 1
Views: 648

Best cheap IPS LCD option?

New member here. I used to do vision science for a living, and we swore by CRTS even as recently as a couple years ago, do to the low lag, low persistence, adjustable refresh rate, etc. I can remember doing some early VR stuff with shutter glasses at 200hz. Turns out that red phosphors decay faster ...