Search found 62 matches

by ad8e
07 Jul 2019, 19:11
Forum: Input Lag
Topic: Interesting project about mouse/ gamepad latency
Replies: 98
Views: 14018

Re: Interesting project about mouse/ gamepad latency

Olympic athletes can't react faster than 100 ms under starting line conditions, only with special equipment. No sprinter comes anywhere close to the 100 ms false start threshold in a race, unless they guess. As for the measured <100 ms reaction times from the research papers, those doesn't require O...
by ad8e
07 Jul 2019, 13:47
Forum: Input Lag
Topic: Interesting project about mouse/ gamepad latency
Replies: 98
Views: 14018

Re: Interesting project about mouse/ gamepad latency

I've seen mousebutton-to-photons latency of less than 10ms in CS:GO in some setups. Older Quake can be even less, given their capability to go 1000fps+. Yes, and rendering just-in-time vsync should cut frame latency by another 30-40% of the frame time, depending on jitter. For reaction tests, which...
by ad8e
07 Jul 2019, 13:11
Forum: Input Lag
Topic: Interesting project about mouse/ gamepad latency
Replies: 98
Views: 14018

Re: Interesting project about mouse/ gamepad latency

The 150 ms results in their database are from cheating/guessing, there's no point in referencing them. Given current home testing setups, average measurements of 140 ms - 160 ms are achievable from audio reaction times. For visual reaction times with current monitor/mouse input tech, 160 ms average...
by ad8e
07 Jul 2019, 09:49
Forum: Input Lag
Topic: Interesting project about mouse/ gamepad latency
Replies: 98
Views: 14018

Re: Interesting project about mouse/ gamepad latency

For visual reaction times with current monitor/mouse input tech, 160 ms average measurements are probably possible, and 140 ms averages are not. I'm not seeing what current tech has to do with it. If you have a latency test program with v-sync off, high framerates, and the whole screen changing col...
by ad8e
06 Jul 2019, 13:26
Forum: Input Lag
Topic: Interesting project about mouse/ gamepad latency
Replies: 98
Views: 14018

Re: Interesting project about mouse/ gamepad latency

I've even commissioned an article by a peer reviewed researcher on eSports-league reaction times ( Input Lag and the Limits of Human Reflex ). The millisecond is often easy to dismiss, but there's a few effects behind the millisecond too, that are often easier to understand for laypeople. That arti...
by ad8e
05 Jul 2019, 17:34
Forum: Input Lag
Topic: Full latency input/rendering/output chain test 960fps
Replies: 4
Views: 1238

Re: Full latency input/rendering/output chain test 960fps

Nice video. Thanks to you filming the mouse button's gap so clearly, we're able to tell that a human finger adds about 8-16 ms to the latency chain; I think yours is the first one to show this. Your monitor skips some timer frames, such as 5:18:398 - 412. It happens pretty often, so your camera and ...
by ad8e
05 Jul 2019, 17:20
Forum: Input Lag
Topic: Interesting Linus video about mouse input lag
Replies: 9
Views: 2815

Re: Interesting Linus video about mouse input lag

There's a way to show the effect of 1 ms delay in a way that viewers can decide if its impact matters. I have a Tearline Jedi-alike that Chief Blur Buster also has access to. When displaying both the hardware cursor and an internal cursor, the internal cursor can outrace the hardware cursor by cheat...
by ad8e
12 Dec 2018, 18:36
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Untearable top strip [raster-based VSYNC OFF tearing test]
Replies: 3
Views: 2795

Re: Untearable top strip

Behavior was unraveled: the monitor flips frames only in specific quantums, and the size of each quantum is about a 8px line. The top quantum is 16px tall, a larger quantum than the rest. Using the demo, we can see that the tearline doesn't smoothly move by single pixels, but rather by groups of lin...
by ad8e
12 Dec 2018, 04:31
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: Untearable top strip [raster-based VSYNC OFF tearing test]
Replies: 3
Views: 2795

Untearable top strip [raster-based VSYNC OFF tearing test]

I'm running some tearing tests, and I noticed an interesting behavior. My laptop has an untearable top strip, about 16px tall. The frame can switch before it or after it, but not inside it. Why is that? Every other strip seems tearable. My specs: Lenovo Thinkpad T530, external VGA monitor and intern...