Vsync off?

[vplin]

Hello!

Everybody is saying me that turn Vsync off and you Q3 Arena test result will raise.
How to disable this Vsync off easily???

[Kruzin]

Q3test is OpenGL.
Vsynch in the OGL ICD is always disabled.
No option there.
The vsynch registry hack will only affect D3D apps.
Disabling it shouldn't have any affect on Q3 scores, but I have not (nor do I plan to) specifically tested this.
If you want to try for yourself, the registry hacks are posted at murc...

[Buuri]

Could somebody (Ant?) write a FAQ about these things, 'cause they seem to haunt the forums every 7 days?

And wait a minute! Howcome Q2 and Q3:A have this 'sync every frame' option if it's always disabled?


B

[This message has been edited by Buuri (edited 07-26-99).]

[vplin]

This might be a stupid questin, but

In Q3 graphics menu is option called "sync every frame". Is this exactly the same as Vsync?????????????????

So is there any difference between "Vsync" and "sync every frame"?

VPLIN

[Kruzin]

The "synch every frame" (aka vsynch) is built into the game. It's there because they put it there. This is not the same as the registry hack I mentioned, it's game specific. Why don't one of you test it, and tell us if it makes a difference?

[arbymo]

this is tested in Q2 ... dunno about Q3 though ..
if u set sync every frame to NO in Q2 . u'll get higher speed .. don't rememeber the fps difference now .. but wether it is set to yes or no .. there are still those ugly tearings.

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GigaByte 6BXE, celeron 300A@464, 128 PC100 RAM,
G200 8 M SD @112.5 core. driver 4.51, bios 2.3.

[Kruzin]

I should have been more specific with my statement. The vsynch/ICD I was talking about was the G400 ICD. I don't know if what I said applies the the G200 ICD...

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P2-450(@112*4.5=504), Asus P2B(1009), 128meg PC100, MillG400 32meg(PD5.20.???), CL SB Live!Value, CL PC-DVD, Mitsumi CD-R, WD UDMA 8.4&6.4 gig, (2)USR 56k(multilinked), 3Com 905B-TX, etc...

[Ant]

The current OpenGL ICD is not affected by the PowerDesk registry setting controlling Vsync. At present for the ICD Vsync is always disabled. The next release of the ICD will have Vsync under the control of the registry as with Direct3D.

[Kruzin]

Hey...
That sounds like what I said in my first post
'cept I didn't say anything about the "next" ICD

[lindhve]

OK, I disabled my Vsync off (from registry) and There was no any affect in Q3!!!!!
I get teh same FPS as before.

Maybe Kruzin was right?

Vsynch doesn't work in OGL....


VPLIN

[JonVS31]

I've tried disabling vsync (through power strip) and never saw any performance difference in games, perhaps that's because I really only tried it on Unreal flyby which only runs around 21 fps on my machine.

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Pentium II 350
Asus P2B Rev. 1008
64 MB CAS3 8ns SDRAM
Seagate Medalist Pro 6530
Matrox Millenium G200
PCI 128 Sound Card (Creative Labs)
32x Artec CD-ROM
SMC EtherPower II network card

[VonKruel]

Turning vsync ("sync every frame") is only a good idea when benchmarking. Normally it should be enabled -- so that displaying the next frame only occurs when the previous frame has just finished being drawn. Basically this means that your fps will never be allowed to exceed the current refresh rate (e.g. 75 Hz). You'll probably have a tough time telling the difference between 75 fps and 80 or 90 fps so you'll only succeed in making your graphics card run hotter When benchmarking, it's good to have vsync turned off because you don't want to impose any artificial limit on performance. vsync on/off doesn't matter though, except when the fps have the potential to exceed the refresh rate.


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"Anyone who is truly interested in self-improvement should not rule out becoming pure energy." -- unknown