remove tearing on muzzleflashes?

[12sunflowers]

Hello!
Linux
gf9800gtx
Is there way remove tearing on muzzleflashes(see video on streamable)
https://streamable.com/d0x7jv?t=4&src=player-page-share
I do not want turn off Dynamic Light effects.
I do want turn ON Vsync.
Can i use ‘cl_async 2’(GL_ARB_sync) on my 9800gtx with proprietary 340.108 driver?
glxinfo-gf9800gtx.txt

[Calinou]

If you're referring to dynamic lights tearing, it's likely because the effect appears for a single frame only for bullet-based weapons. This means that at higher FPS and V-Sync disabled, the effect will be present for less than a frame on your screen, causing this tearing effect.

This is fixed in Nightdive's re-release by making the dynamic light appear for a fixed amount of time (e.g. 50 ms). I remember seeing a fix for this in either Q2PRO or Yamagi Quake 2 (I forgot).

[12sunflowers]

@Calinou
Hi, thanks for info. How i can find this "fix" for q2pro or yamagi that you maintoned?

[Calinou]

@Calinou Hi, thanks for info. How i can find this "fix" for q2pro or yamagi that you maintoned?

I found it, it's yquake2/yquake2@ba2fc77. The light always displays for at least 32 milliseconds, which simulates how long these dynamic lights displayed when the game ran at 30-35 FPS on hardware of the era.

[12sunflowers]

Thanks a lot! So, only Nightdive remaster and Yamagi have this fix?

[Calinou]

Thanks a lot! So, only Nightdive remaster and Yamagi have this fix?

Right now, yes, but #368 implements the same fix in Q2PRO.

[12sunflowers]

Thanks. And its have same result as at Nightdive or Yamagi? How quick its can be implemented?

Muzzleflash dynamic lights are always shown for at least 16 msec in Q2PRO, which corresponds to 60 FPS. This can be raised to 32 msec but in comparison to 16 I don't see much difference in terms of tearing. Tearing is a result of having vsync disabled, you can't avoid it without vsync. The sample video is pretty much useless here since tearing can only be seen on your monitor

I do not understand what want to say skullernet?

[skullernet]

I'm saying that the only way to avoid tearing is to enable vsync. With vsync disabled I get tearing in Q2PRO, Yamagi Quake 2 and Nightdive's re-release. In re-release tearing is less noticeable because muzzleflash dynamic light lifetime seems to be much higher there (like 100 msec). But this is also very different from vanilla.

[12sunflowers]

its bit mess, @Calinou says this fix tearing

I found it, it's yquake2/yquake2@ba2fc77. The light always displays for at least 32 milliseconds, which simulates how long these dynamic lights displayed when the game ran at 30-35 FPS on hardware of the era.

i am also today try Yamagi with dynamic light and have no seen any tearing like i seen at q2pro.

but you say that not fix? please explain.

[12sunflowers]

@Calinou
did changes at last master build and build, i see same tearing with dynamic light, why?
effects.c
if (dl->die < cl.time - 32)

[Calinou]

did changes at last master build and build, i see same tearing with dynamic light, why?

Did you make the change in the right location? It's at line 146.

[12sunflowers]

yes, at 146 line