Autogen disappearing... caused by unlimited frames?

[Boeing or not going 578]

I get missing autogen sometime in a flight and on approach it never comes back, but only after setting my fps to unlimited in the p3dv4 menu. Locked at 30, never disappearing autogen. Is this a bug in p3dv4?

[mpw8679 428]

Same thing here with unlimited frames.  Ground textures also blurry at times

[Boeing or not going 578]

3 minutes ago, mpw8679 said:

Same thing here with unlimited frames.  Ground textures also blurry at times

I thought affinity mask manually setting caused it, but on my computer, unlimited fps gives me disappearing autogen. I am looking at Matt Davies' stream replay and he landed at EGLL and had no autogen either. Couple days ago he changed settings to in game unlimited fps and nvidia inspector locked at 30 using 30 refresh rate on his monitor. That got me noticing my disappearing autogen also using unlimited fps. Back to locked at 30 for me and maybe I'll play around in the affinity mask again.

[Gregg_Seipp 565]

The same thing happens in 3.4.  I think the sim is so busy generating frames it doesn't have enough time to display autogen.  I locked my frames in sim at 31.

[vgbaron 3,473]

The system will devote maximum resources to maintaining FPS and what's left goes to other tasks. If your system struggles to maintain the FPS then the other parts suffer.  I believe that P3D, more than any prior sims really must be tuned to SMOOTH performance at the lowest fps that gets you there. I am locked at 20 and it's smooth. I could also lock at 30 and it's still smooth BUT why should I? I don't get points for extra wasted fps do I? So with fps at 20 and being smooth, that lets me crank up the eye candy a bit more with no penalty.

Stop thinking FPS - you want a great, smooth flight experience - if you can get it at 20-30 do you really care?

Remember high fps doesn't mean smooth just high numbers that could have stutters.

Vic

[Virtual Flight Realm 29]

I you use fast sync instead of vsync via nividia panel you wil notice autogen popup with fps limited but with unlimited FPS Fast sync is better than P3D vsync and can produce smoother experience with fps variation...

[mpw8679 428]

22 minutes ago, Virtual Flight Realm said:

I you use fast sync instead of vsync via nividia panel you wil notice autogen popup with fps limited but with unlimited FPS Fast sync is better than P3D vsync and can produce smoother experience with fps variation...

Fast sync? I have never heard of this. Learn something everyday 

[captain420 3,099]

3 hours ago, mpw8679 said:

Same thing here with unlimited frames.  Ground textures also blurry at times

Are you talking about photoreal ground textures or regular textures? Because I only find that photo textures seem t get blurry while the normal ones are sharp.

[AnkH 2,230]

Same here. Only Photoground tends to get blurried and only if I fly fast and low. I also do not see autogen disappearing, not after 2-3 hours so far (the longest flight I did), and I use both unlimited FPS (but limited via nVidia profile inspector) and an AF setting. I also do not observe anything like: "it tries to maintain FPS at the cost of other things like autogen". If I fly from a rural airport to a heavy one, my FPS drop down from almost constant 36FPS (thats my external limit) to 20-25FPS, but without disappearing anything. Strange...

[Nyxx 6,993]

4 hours ago, vgbaron said:

The system will devote maximum resources to maintaining FPS and what's left goes to other tasks. If your system struggles to maintain the FPS then the other parts suffer.  I believe that P3D, more than any prior sims really must be tuned to SMOOTH performance at the lowest fps that gets you there. I am locked at 20 and it's smooth. I could also lock at 30 and it's still smooth BUT why should I? I don't get points for extra wasted fps do I? So with fps at 20 and being smooth, that lets me crank up the eye candy a bit more with no penalty.

Stop thinking FPS - you want a great, smooth flight experience - if you can get it at 20-30 do you really care?

Remember high fps doesn't mean smooth just high numbers that could have stutters.

Vic

+1

The only time you need 30 FPS is if you use TrackIR, it needs the fps, P3D does not, I run 22.

[AnkH 2,230]

Old discussion. As soon as you are used to shooter games on a 144Hz monitor (as I am...), you can simply smile about the statement: "as long as it is smooth, 20FPS are sufficient". My issue: if I use unlimited, I still have 20-25FPS on a major hub like Schiphol. If I put whatever FPS limit (60, 31, 30, 25... all tested), I reproducably loose 10-20% FPS and I am down below 20 on those heavy airports. Bummer. Because when flying VFR low and slow in FTX Regions, I almost constantly have 30FPS or more and I could easily lock at 30FPS without losing any FPS. Just not when flying into hubs...

[kand 205]

2 minutes ago, AnkH said:

Old discussion. As soon as you are used to shooter games on a 144Hz monitor (as I am...), you can simply smile about the statement: "as long as it is smooth, 20FPS are sufficient". My issue: if I use unlimited, I still have 20-25FPS on a major hub like Schiphol. If I put whatever FPS limit (60, 31, 30, 25... all tested), I reproducably loose 10-20% FPS and I am down below 20 on those heavy airports. Bummer. Because when flying VFR low and slow in FTX Regions, I almost constantly have 30FPS or more and I could easily lock at 30FPS without losing any FPS. Just not when flying into hubs...

I think that is due to the FFTF default value, when you run unlimited its ignored but when you lock your frame rate internally the FFTF is calculated which means the program forces itself to spend more time rendering at the expense of FPS.

You can alleviate this effect by adding a nominal FFTF value in you cfg file, I used to use 0.17 because anything lower would result in bad blurries, as usual YMMV!

 

[Nyxx 6,993]

Correct,

You can try 0.01

I use 0.10

With no FFTF your setting is 0.33, what that means is 1/3 of every second is allocated to loading textures. A FPS hit, adding in a FFTF sorts that problem out.

But you get the better texture loading as you PC is not trying to give you 30-40-80 fps all the time.

[AnkH 2,230]

Ok, I will try that one. But basically I am happy with my current setup, I see almost none of the described issues except the shadow bug and actually I should enjoy flying instead of switching to a limited FPS setup again with some tweaking in addition. But if I ever experience autogen loss, I hopefully think about this thread again to try the limited FPS approach. Thanks for the heads up!

[Michael Moe 493]

Many of you is achieving got results with 20-22fps in P3D which i fully understand as i also had simular results on a dedicated 1080P Monitor back in 2016 with V3.

As of 2017 i am on a Philips 4K 49" TV which can run 4K at 23,24,25,29,30,59,60 HZ.

Anyone knows why TV is not that smooth vs the above 1080P monitor without VSYNC ?  I tried 23,24 and 25 HZ and for reasons i dont understand 25HZ gives me the best smooth experience off all three. (also 1-2 fps more offcause but totally without stutter)

As soon as P3D VSYNC gets blow 25fps the stutter starts immediately.

Thanks

Michael Moe