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Hello,

I wanted to share the following (pun?), because I was unable to find the below information summarized elsewhere. Other forum posts have discussed messing around with mouse DPI & in-game mouse sensitivity; this can create an illusion of less lag, but doesn't actually address the underlying cause.

The mouse lag experienced in Dying Light can be caused by in-game post-processing effects and / or NVIDIA driver settings. (I'm not sure if there are analogous AMD driver settings.) In my experience, it can be completely eliminated (both the cursor lag in menus and the control lag in-game) by disabling the post-processing effects, assuming the driver is also configured for minimal latency. This has negligible effect on visual quality, as most of these visual effects are essentially just instagram filters.

To eliminate in-game post-processing effects that cause input lag, disable all of these in-game settings:
-NVIDIA depth of field
-Film grain
-Chromatic aberration
-Motion blur
-Anti-aliasing (actually not 100% sure if this is part of the problem)

Turning on even one post-processing effect (except AA) immediately re-introduced input lag for me, even if it didn't affect the framerate.

If you experience input lag even with these settings disabled, make sure your graphics driver is set up to avoid input lag. NVIDIA driver settings that affect input lag:
-"Maximum prerendered frames:" force this to 1.
-Triple buffering: disable this. It increases FPS when Vsync is enabled, but at cost of latency. Consider also forcing VSYNC to "fast" or "off."
-"Perform scaling on:" perfoming scaling on GPU seems to introduce a tiny amount of latency, even if I'm using native resolution. (That is, perform scaling on display appears to be better.)
Post edited April 18, 2018 by fjdgshdkeavd
The game looks laggy even on 60fps.... its cos they forced motion blur wich cannot be disabled, and it serves "cinematic feel" but in reality it makes my eyes and head hurt....
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Fugana: The game looks laggy even on 60fps.... its cos they forced motion blur wich cannot be disabled, and it serves "cinematic feel" but in reality it makes my eyes and head hurt....
There's an option to disable motion blur in the graphics menu, along with chromatic aberration and film grain. I play with all of those turned off.
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Fugana: The game looks laggy even on 60fps.... its cos they forced motion blur wich cannot be disabled, and it serves "cinematic feel" but in reality it makes my eyes and head hurt....
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Desmight: There's an option to disable motion blur in the graphics menu, along with chromatic aberration and film grain. I play with all of those turned off.
Even if you turn it off its still present in the game : \
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Desmight: There's an option to disable motion blur in the graphics menu, along with chromatic aberration and film grain. I play with all of those turned off.
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Fugana: Even if you turn it off its still present in the game : \
Pretty weird, I've never noticed it, maybe try to disable antialiasing? Sometimes it produces some texture artifacts, so it's some sort of temporal AA (which usually comes with some movement blur)
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Fugana: Even if you turn it off its still present in the game : \
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Desmight: Pretty weird, I've never noticed it, maybe try to disable antialiasing? Sometimes it produces some texture artifacts, so it's some sort of temporal AA (which usually comes with some movement blur)
Yep just tested it its indeed the utter crap Temporal AA that adds insane mouse lag and insane blur -.-
Thanx for suggesting it to turn it off.
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Desmight: Pretty weird, I've never noticed it, maybe try to disable antialiasing? Sometimes it produces some texture artifacts, so it's some sort of temporal AA (which usually comes with some movement blur)
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Fugana: Yep just tested it its indeed the utter crap Temporal AA that adds insane mouse lag and insane blur -.-
Thanx for suggesting it to turn it off.
Glad it helped :D
Thank you!
That helped to get the input delay down to "just acceptable" levels.

Grain? I always turn that off for gaming. Fine for cutscenes.
Motion blur? I don't like "drunk simulation".
Depth of field? Playing on a large screen 4K, Titan X.. When I WANT DoF I take of my glasses, I don't like games dictating me where to "focus".
Chromatic aberration? Nobody wearing glasses likes that effect. When I "want" it I look trough the edgy of my glasses instead of center.
Post edited September 15, 2018 by Jou_de
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Desmight: Pretty weird, I've never noticed it, maybe try to disable antialiasing? Sometimes it produces some texture artifacts, so it's some sort of temporal AA (which usually comes with some movement blur)
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Fugana: Yep just tested it its indeed the utter crap Temporal AA that adds insane mouse lag and insane blur -.-
Thanx for suggesting it to turn it off.
Yeah, so, my thread sucked but the intended takeaway from my OP is that disabling ALL the postprocessing effects seemed to eliminate mouse lag, even though the effect on framerate was modest.

That plus being sure nvidia drivers are set to max prerendered frames = 1
Post edited October 26, 2018 by fjdgshdkeavd
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Jou_de: Thank you!
That helped to get the input delay down to "just acceptable" levels.

Grain? I always turn that off for gaming. Fine for cutscenes.
Motion blur? I don't like "drunk simulation".
Depth of field? Playing on a large screen 4K, Titan X.. When I WANT DoF I take of my glasses, I don't like games dictating me where to "focus".
Chromatic aberration? Nobody wearing glasses likes that effect. When I "want" it I look trough the edgy of my glasses instead of center.
Haha I'm not the only one who compares DoF and Chromatic Aberration to wearing glasses xD