Search found 68 matches
- 04 Dec 2018, 01:26
- Forum: Software Developers / Low-Lag Code / Game Programming
- Topic: How to remove one frame of delay on my system?
- Replies: 4
- Views: 7635
How to remove one frame of delay on my system?
I'm writing vsync code and I'm trying to get my screen to tear, but I'm not able to. Instead, I always see one frame of delay and perfect frames, which means something is queueing up frames and swapping them. This seems to be caused by my OS or driver. My test system is Intel HD 4000, Windows 8.1, T...
- 01 Dec 2018, 02:52
- Forum: Input Lag / Display Lag / Network Lag
- Topic: Measuring keyboard input lag
- Replies: 56
- Views: 119033
Re: Measuring keyboard input lag
Debounce algorithm is decided by the person designing the mouse, not the people making the switches. Delay based debouncing is responsible for those phantom clicks, spurious double clicks, and releasing during a drag, with a tradeoff between the length of the delay, and the reliability of the debou...
- 01 Dec 2018, 00:59
- Forum: Input Lag / Display Lag / Network Lag
- Topic: Measuring keyboard input lag
- Replies: 56
- Views: 119033
Re: Measuring keyboard input lag
The gamersnexus link is a good test method. The high speed video method works a lot better if you use a full screen program running at several thousand fps with vsync off. as is, the error from the refresh rate of the monitor, and graphics pipeline, is bigger than the signal you're trying to measur...
- 30 Nov 2018, 21:46
- Forum: Input Lag / Display Lag / Network Lag
- Topic: Measuring keyboard input lag
- Replies: 56
- Views: 119033
Re: Measuring keyboard input lag
The three approaches I think are best all have in common a test platform capable of both GPIO and USBHost. The easy way I can think of is to slam the mouse button into a keyboard button at high speed. This causes some delay from physical key pressing speed, which is acceptable because humans have d...
- 30 Nov 2018, 03:06
- Forum: Input Lag / Display Lag / Network Lag
- Topic: Measuring keyboard input lag
- Replies: 56
- Views: 119033
Re: Measuring keyboard input lag
The three approaches I think are best all have in common a test platform capable of both GPIO and USBHost. The easy way I can think of is to slam the mouse button into a keyboard button at high speed. This causes some delay from physical key pressing speed, which is acceptable because humans have d...
- 26 Sep 2018, 17:24
- Forum: Input Lag / Display Lag / Network Lag
- Topic: Measuring keyboard input lag
- Replies: 56
- Views: 119033
Re: Measuring keyboard input lag
Thanks. So he's being screwed by his keyboard hardware, since the internal scan rate is much longer than 1ms, not just the debounce time. The USB 1000Hz on that keyboard must then be mainly for marketing purposes, like a gold-plated Reliant Robin. It seems to me that the /r/MechanicalKeyboards commu...
- 26 Sep 2018, 12:06
- Forum: Input Lag / Display Lag / Network Lag
- Topic: Measuring keyboard input lag
- Replies: 56
- Views: 119033
Re: Measuring keyboard input lag
Someone at https://www.reddit.com/r/thinkpad/comments/9ivh0u/thinkpad_keyboards_measurement_of_polling_lag_and/e6n9dc3/ reported that pressing two keys simultaneously on the MasterKeys Pro S, a 1000Hz keyboard, makes one of the two keys appear first every time. That sounds like either the firmware i...
- 18 Sep 2018, 00:31
- Forum: Software Developers / Low-Lag Code / Game Programming
- Topic: Raster "Interrupts" / Beam Racing on GeForces/Radeons!
- Replies: 17
- Views: 35408
Re: Raster "Interrupts" / Beam Racing on GeForces/Radeons!
What license do you plan on releasing this code under?