Ok I could have used better phraseology there

Also another little thing from that website for all the people who claim that the human eye can't tell the difference between 30 FPS and 60FPS

 

http://www.testufo.com/#test=framerates

 

If you can't tell the diff then you must blind as a bat.

I never said you can't tell the differ. The point is that you might as well have a smooth 30FPS at 30hz than a stuttery 30ish FPS at 60hz.

 

60fps at 60hz would be great but it cannot be achieved in Prepar3D or FSX or X-Plane10 on resonable setting with demanding addons with any system currently available.

 

30fps at 30hz can be so for now that is the best solution or considered the best solution by many.

If you have an alternative solution that delivers a stutter free experience lets here it.

I wasn't taking any poke at you. Just thought that was a good illustration of the difference as I hadn't ever seen it until I was browsing. Lots of good info on this subject on that site and tools to test it,

Just start with the 30/30 config and see from there....

 

 

I wasn't taking any poke at you.

 

Yeah, I know that :-) We are debating pros and cons here.

120hz and fps with ASN NG etc etc around 30-60, TrackIR/EZDOC

 

Just run unlimited and all is fine. No Stutters.

 

Like everything in this sim you have to fine what works for you and that does not mean it will work for others or presume it will.

 

30hz to me sound like going back to the dark ages, dread to think how bad a mouse looks moving across the screen, I understand the logic, but hey if it works for you then great, enjoy.

I'll post my 4K video again ... 30Hz, Unlimited, Triple buffer ... 

 

 

Anyone see lag?

 

Cheers, Rob.

Well your looks a little bit better than mine, but my experience is about the same.

It look smooth Rob,

 

But when you move your mouse in a round circle fast (around 40> sec with mouse pointer showing) look how many mouse pointers you can see at once? very few 5 ish showing, if I do the same movement on a white screen on my 120hz I have around 20+ showing. Lag is not really the right term, its the huge amount of none drawing its doing. You vid shows perfectly the huge lack of the mouse redraw. You should get a mouse trail like speed blur following your pointer, not huge gapes. Your vid shows you only got a "draw" at North then east then south and then west. You "should" have a circle on show of mouse pointers not 4-5.

 

It look smooth only because there refeash and fps are working together but the mouse shows the speed its refreshing and all them huge gaps shows how slow your screen is refreshing.

 

A screen shot did not work, here is the best I could find on youtube, a vid 144 v 60, well half the movement again with 30hz of the 60hz screen.

https://youtu.be/-qsJYqw0URQ

 

But like I said before if it works for you then great, Enjoy.  

 

I prefer my smoothness from fps/refresh speed. But that's just what works for me  :smile:

 

TrackIR is a great test of "smooth" and that likes the most fps it can get. With out TrackIR you can get away with Murder sometimes with "smoothness"

 

To be clear am not saying this is wrong or right its just like everything else in simming, what ever works for you is right.

 

Rob, It would be like running you Lotus @ 60BHP and saying its running smooth.....it well could run smooth but a bet you like running much much higher   :wink:

TrackIR is a great test of "smooth" and that likes the most fps it can get. With out TrackIR you can get away with Murder sometimes with "smoothness"

 

Disagree again, TrackIR uses mouse look feature, which is exactly what I was doing ... any TrackIR latency issues are a result of the sensors on the TrackIR unit (also depends on which mode you run TrackIR in ... I have TrackIR and so use it sometimes.

 

I understand what you are saying, but "smooth" and the number of frames draw are two entirely different concepts.

 

I did the calculations before on obtaining 1 pixel motion per frame accuracy at 500 Kts viewed at 90 degrees to object ... for the FS world that operates at 1m per pixel (don't confuse this with texture resolutions), you would need to operate at around 240-250 FPS (and a monitor operating at 240-250Hz) if you want to obtain "true 1:1 relationship" with that defined motion ... increase the motion to 1000 Kts and you'll need 500 FPS and a monitor that can operate at 500Hz.  Think high speed cameras that record high speed objects (like bullets) ... as you increase the speed of the object being recorded, you also need to increase the speed of frame captures in order to be able to see the object in "slow motion".

 

Steve's video link (which I've linked before) isn't demonstrating "smooth" is just demonstration frame count over time ... smooth is the ability to retain consistency in time frames NOT the actual number of frames over a period of time.

 

There is a wrong and there is a right when it comes to this topic, but what gets mixed into the topic is "smooth" requires higher FPS and Refresh rates which IS NOT accurate.

 

Cheers, Rob.

But a question. Someone told that was not possible to use the vsycn in P3Dv3.0 because it didn't use the real full screen. I suppose that now it is fixed that in 3.1 and we have real full screen.

But if so, how do I set the 30hz? In Nvidia Control panel?

 

I am using 3 screens, with 5040x1050 resolution and I have some stutters sometime during the flights. 

 

thanks!

Well we can respectively disagree Rob  :smile:

 

But all that matters is that we all have the sim running "smoothly" to our own eyes/taste.

 

@Japo32

Most screens with not let you set 30hz as its so slow, its more a TV  thing. Rob users a TV. You would do well to find a monitor  that would even let you set 30hz, 60hz is normal, 120 is better 144 is even better. etc etc.

 

Can you remember the old monitors crt's, you would have lost your eye sight @30hz. 

Ah.. thanks for the explanation. Sad to not finish with my stutters with this solution.... :(

There are lots of things you can try to stop stutter, this is one option. Read though the forums and am sure you will find lots of things to try.

There is a wrong and there is a right when it comes to this topic, but what gets mixed into the topic is "smooth" requires higher FPS and Refresh rates which IS NOT accurate.

 

Cheers, Rob.

This is simply incorrect.

 

consider the following case all else being equal:

 

picture a pmdg vc position as example

 

sim 1 set 30hz and consistently maintain those fps and pan around cockpit.

sim 2 set 60hz and consistently maintain those fps and pan around cockpit.

 

Sim 2 is inherently more smooth, due to the 16 or 17 ms refresh compared to the 33sec refresh.

 

if you equate smooth to mean consistency in frames, then the options above are equally smooth but option 2 is harder to achieve in reality as it more demanding on cpu/gpu

 

maybe i should say option 2 is more immersive and more visually appealing/realistic with it's higher refresh rather than more smooth.

 

fps/hz and smoothness is ABSOLUTELY linked.

 

**

 

Agree 30hz is like tech from the dark ages, look at VR coming soon looking for 90hz.

 

In my case, with my current computer 6700K @ 4.7Ghz and 980Ti, - I can tweak P3D to give me a solid 60hz for typically 90-95% of my whole flight, i will always get the occasional stutter here and there when the workload is massive, but i'm happy and will live with that, typically i'll use G-sync and unlimited frames on 144hz panel 1440p.

 

When recording for youtube @60hz quite happy to set refresh @60hz and v-sync triple buffer on

 

clipping your refresh at the lowest you can achieve for 99.9% of your flight (e.g. 30hz) is a real waste of resources in my opinion, especially on today's computers