PTA causes stutters?

[Dreamflight767 310]

Hi:

I'm thinking PTA (newest version) is causing stutters in P3D V4.  Anyone else have this issue?

[Adamski_NZ 942]

I've used PTA from the very beginning - right through to the current 2.52. I've not known PTA *on its own* to induce any stutters. However - check your preset settings - there are a few marked as having a slight performance hit. Maybe if you just happen to have many of them enabled, the cumulative effect might cause stutters.

Adam.

[Dreamflight767 310]

Thanks Adam.  When you mention preset, are you referring the settings within P3D or PTA?

[Adamski_NZ 942]

Sorry - I meant PTA preset values. P3D settings are a whole different can of worms!  You gave the impression that the stutters only happened after installing PTA, so I presumed your P3D settings hadn't changed.

Adam.

[Wanthuyr Filho 83]

Other than cloud sizes, what may cause a performance hit?

 

[Adamski_NZ 942]

8 hours ago, Wanthuyr Filho said:

Other than cloud sizes, what may cause a performance hit?

Cloud sizes/shadows mainly, I agree, but there are the odd others. Here's what I could find:

1) Cloud shadows
2) Scale width & height of clouds
3) Presets that require tesselation (some lighting and water tweaks)
4) FXAA in the Post-processing section

Adam.

[vcarlo 529]

Hello,

May we assume you have restored original shaders, no presets applied, and your problems went away ?

[Dreamflight767 310]

Hi:

Indeed.  Prior o PTA, I didn't notice much stutters.  But after install and use, I noticed micro stutters.

Adam,

Could I trouble you to explain in a little more detail about how to go about checking the items you mention.  Where do I find those and settings (I image all in PTA) and what am I looking for.

Thanks!

[Adamski_NZ 942]

9 hours ago, Dreamflight767 said:

Could I trouble you to explain in a little more detail about how to go about checking the items you mention.  Where do I find those and settings (I image all in PTA) and what am I looking for.

I think your best course of action (and a great way of learning what PTA does) is to work your way through every single preset - and read the notes that pop up in the right hand panel. No need to actually apply them, just read through.

Once you've gone throught them all, try a few tests on various tweaks. Make the changes fairly large to begin with, then you'll be able to spot the differences more obviously - then fine tune.

Some help on procedures here: http://www.nzfsim.org/index.php?dsp=PTA&tips=1#tips

Adam.

[Dreamflight767 310]

Ill give that a go.   Much appreciated.

[Dreamflight767 310]

We can close this topic.  My stutters were not caused by PTA.  Thank you to all for their help though!

[Adamski_NZ 942]

1 minute ago, Dreamflight767 said:

We can close this topic.  My stutters were not caused by PTA.  Thank you to all for their help though!

Great! As a matter of interest, what was the cause?

Adam.

[Dreamflight767 310]

Mytraffic6.  When I was running tests for probable causes for my stutters, I thought I was disabling it MT6.  In fact, when I closed the scenery library in P3D, it re-checked it self.  So, I had to go manual disable it and boom, night and day difference. 

[jabloomf1230 2,445]

It's not only MyT 6 but rather any big AI package that will cause performance issues. For the Ultimate Traffic series there is a built-in frame rate target option that limits the total number of AI aircraft within the user's reality bubble. For MyT 6, one needs to use the FSUIPC traffic limiter options to get the same result.

[Wanthuyr Filho 83]

Quite interestingly within v4 I have virtually no performance loss with AI traffic, but within v3.x if I used the same amount of traffic my PC would go down to its knees right away.