VSYNC P3D V3

[Guest]

Conclusion : on my system fps set to Unlimited is the way to go.

 

Gerard ... you are missing the most key detail from your post ... what's your monitor refresh rate operating at?  Vsync is only relevant if your system can sustain FPS (min) greater than your monitors refresh rate.

 

Cheers, Rob.

 

EDIT: Agree that monitors have come a long way and "refresh" was originally a CRT monitor specification.  However a 3D rendered image in real time has very different properties from filming a movie on a digital camera ... if you subscribe to Eistein's theories, the world moves at up to 186,000 miles per second (ish) ... a 3D rendered images do not ... they are governed by fast CPU/GPUs.  One is capturing at a specific FPS, one is generating at specific FPS - two VERY different worlds.

 

EDIT 2: To further complicate matters, current monitors/TVs will have a slew of additional adjustments with their own frame buffering which makes the equation even that much more difficult to determine.

[Bert Pieke 7,584]

Here is a basic rule of thumb I go by:

 

https://docs.google.com/spreadsheets/d/1wzQ3a6BICcFwD_zm-NcFu4E63msHH0qY3I77UJ9Ed6w/pubhtml

 

 

Cheers, Rob.

 

Breakthrough!  Thanks, Rob!

 

fps locked at 27, and Vsync OFF gives me the smooth scenery display I was looking for  :smile:

[mikeymike 357]

ok i am bloody stumped mate i just did a test with my 46 inch tv refresh rate being 60htz

 

fps unlimited vsync on triple buffer on =smooth

 

vsync off triple buffer off unlimited frames = smooth

 

tried both scenarios with fps 57 60 = smooth

 

so whats the best setting lol

 

so ATM i have it set unlimited  fps vsync off triple buffer off

[GSalden 4,656]

Gerard ... you are missing the most key detail from your post ... what's your monitor refresh rate operating at?  Vsync is only relevant if your system can sustain FPS (min) greater than your monitors refresh rate.

 

Cheers, Rob.

 

EDIT: Agree that monitors have come a long way and "refresh" was originally a CRT monitor specification.  However a 3D rendered image in real time has very different properties from filming a movie on a digital camera ... if you subscribe to Eistein's theories, the world moves at up to 186,000 miles per second (ish) ... a 3D rendered images do not ... they are governed by fast CPU/GPUs.  One is capturing at a specific FPS, one is generating at specific FPS - two VERY different worlds.

 

EDIT 2: To further complicate matters, current monitors/TVs will have a slew of additional adjustments with their own frame buffering which makes the equation even that much more difficult to determine.

Rob, my HD tv's can be set to 60, 50, 30 and 25 hrtz when connected to a pc .

I have choosen 25 Hrtz as 26 fps is the minimum I am getting with Unlimited fps.

[SteveW 1,792]

Thanks steve

so what would be input on blurred terrain in distance?

LOD is 6.5

affinity mask 84 have tried 244 254 84 also tried without 84 is smooth

 

fftf 0.01 also tried without

 

running i7 4790k

 

thanks

I can only suggest you try 116 instead of 84, since it provides 4LPs and still avoids core zero like 84. However, I'm not sure if you need to avoid core zero, so can also try 85 if not.

 

I have choosen 25 Hrtz as 26 fps is the minimum I am getting with Unlimited fps.

You'll need a consistent 50+ fps with Unlimited to run at 25 locked Gerrard.

[Bert Pieke 7,584]

Seems like Rob and Steve have two different approaches to this... :wink:

[GSalden 4,656]

Just as puzzeled now as you are Bert...

[Driver170 42]

Wish it was as simple as FSX. Vsync 1/2 refresh rate, lock frames at 30 GO FLY thats why we are here lol

[Cruachan 705]

Just as puzzeled now as you are Bert...

Join the club! The more I read about this the more I think I understand, yet my results seem to run contrary to all the very sound logic recorded on these forums.

 

On my rig: Monitor refresh 120Hz, VSync ON, Triple buffer checked, Frame Rate Unlimited, SGSS:4, MSAA:4 = very smooth performance with very rare and hardly discernible micro-stuttering.

 

I7-5960x currently still running at stock speeds (3-3.5GHz), 8 cores (NO Affinity Mask, HT=OFF) ASUS Strix GTX980 x2 in SLI (usage appears balanced varying between 60-75% (P0), Windows7 Pro 64bit.

 

I use KSEA as my testing area with building storms. Frame rates (as displayed by the sim) can be jumping all over the place but, remarkably, the screen updates remain smooth. Beech Baron 58 movements always fluid and convincing of real flight.

 

Once again, if there is one truth worth repeating about all this, it is the unique nature of each rig on which the sim is running. Doubtless my hardware setup is a major factor - which is why I have not posted the rest of my settings, but am happy to do so if requested.

 

Mike

[gboz 157]

I use KSEA as my testing area with building storms. Frame rates (as displayed by the sim) can be jumping all over the place but, remarkably, the screen updates remain smooth. Beech Baron 58 movements always fluid and convincing of real flight.

 

Mike, if you are not seeing integer divisions of 120 FPS (120, 60, 40...) you would have to think Vsync is not working here. ?

 

gb.

[SteveW 1,792]

Just as puzzeled now as you are Bert...

How do you guys think the locked frame setting works then, Bert, Gerrard and Rob?

[Bert Pieke 7,584]

Don't have a clue, but following Rob's spreadsheet, I am happily running at fps locked at 27 and Vsync = OFF.  Cannot explain it, but it seems to work.  :smile:

 

Monitor refresh at 60.

[JLSeagull 191]

Just my ten penn'orth? - but I gave up on all the Vsync mumbo-jumbo last year with one of these: Asus Rog Swift PG278Q. 

 

The display is 2560x1440 native res @ 60, 120 or 144hz.(Your choice)

 

I am currently running an i7-4790k / GTX980ti 6gb at 5120x2880 res (4x DSR, 0% smoothness, G-Sync enabled), through this single monitor, 30fps locked.

 

As crisp as a new fall of snow and as smooth as a baby's bum.

 

Simples :smile:

[TuFun 426]

Ah... G-Sync monitor.  I'm thinking of acquiring one of those.  Heard a lot of good gaming with those.

[Guest]

My assumption is that one has NOT done ANY "tweaking" to their prepar3d.cfg.

 

FreeSync and G-Sync are different, don't use my table if your monitor implements any variant of those technologies.

 

Cheers, Rob.

 

 

How do you guys think the locked frame setting works then, Bert, Gerrard and Rob?

 

I've had a few discussions with Beau H. (LM) regarding unlimited vs. limited and if I understand him correctly, unlimited has less code overhead and is the "desirable" settings IF one can sustain sufficient FPS to let Vsync manage the frame flow (this will produce the most consistent time frames).  

 

Limited is less desirable and is an additional software layer managing the flow (read slower).  Limited is intended to help when one can't sustain necessary FPS equal to or better than one's monitor refresh rate ... basically slowing the code down on the main render thread (doesn't impact other threads running as they all still need to be synchronized on the main thread)

 

By hey, whatever works for you ... use it.  

 

Cheers, Rob.