Screen tearing

Sun Dec 06, 2020 7:19 pm

I've noticed I have some screen tearing when playing GZDoom. It's barely noticeable until I move only slightly. I've tried turning VSync on and off, but that didn't help. I assume it's something to do with the backend, but I'm not entirely sure. Any suggestions?

Re: Screen tearing

Tue Dec 08, 2020 5:04 pm

I vaguely recall reading that GZDoom uses adaptive sync. The cvar for it is "gl_control_tear". You could try toggling it with vsync on and see if it makes any difference.

Re: Screen tearing

Fri Jan 15, 2021 9:49 am

I still dont understand why you dont redesign the vsync option instead of having that hidden cvar

Why not make the vsync option like this:

VSync: Off | Adaptive | On

That would eliminate this confusion.

If I see an option
Vsync : On
I expect it to be on and not adaptive :D

Re: Screen tearing

Fri Jan 15, 2021 10:13 am

It can't be done like that because the behavior here is very different on different hardware, there's even a second hidden CVAR due to this.