LOL Vic posted my post while I was typing. Spot on, Vic!

LOL! Great minds and all that!

 

Interesting thread.

 

I rarely get any "stutters" in P3D now - certainly none as obvious as in FSX (DX9). I do occasionally notice a sort of "chugging" effect when looking left outside in the VC. I guess you could also call that "mini stuttering" but it doesn't bother me that much. I can keep the FPS pegged at 60fps now. Rarely goes below except over big cities or at large international airports with AI.

 

No cfg changes just my external (Asus GPU Tweak) software limiting max FPS to 60fps. P3D FPS settings are unlimited. No V-SYNC or triple buffering. That works well for me on my "old" (2010) PC!

That's what I am talking about, that slight chugging effect! I'm on an i7 4770k with a 780ti and the FPS is excellent with sliders moderate and not over the top, but I can't get rid of that slight "chugging". What causes that?

 

Lee

P3D 2.5 is smooth as butter no stutters except at a cost - the radius of terrain detail is very blurry and aircraft AA is crapola - but it smooth - ok I will shut up now  :(

The primary cause is a fixed refresh rate. 60hz on an LCD screen isn't even remotely the same as a 60hz CRT screen. Image memory was one thing that helped on a CRT.. an LCD screen doesn't have that.

The primary cause is a fixed refresh rate. 60hz on an LCD screen isn't even remotely the same as a 60hz CRT screen. Image memory was one thing that helped on a CRT.. an LCD screen doesn't have that.

 

If you are referring to my post - 2.4 is glorious - 2.5 not - so has nothing to do with refresh rate - I wouldn't care to much but my beloved fsxpackages is not 2.4 compatible - thats why I am in between a rock and a hard place right now - oh 2.5 lighting is much improved hence fsxpackages working correctly in 2.5 - just hope they can fix it 

The primary cause is a fixed refresh rate. 60hz on an LCD screen isn't even remotely the same as a 60hz CRT screen. Image memory was one thing that helped on a CRT.. an LCD screen doesn't have that.

 

True, LCDs were a huge step backwards in terms of smoothness and image quality as it relates to motion. It's only in the recent months that a very few LCDs have made good steps towards the holy grail of CRT motion, like the Asus ROG Swift (I have one.) Having 144hz of refresh rate to work with helps a lot in perceived smoothness, even if framerate is way down in the 40s 30s or even 20s. The sense of motion becomes less "juddery."

 

So far for me, P3D 2.5 on my 144hz monitor is the smoothest either FSX or P3D has ever ran, but they still have a ways to go to compare to Xplane in that regard. (and vice versa when it comes to many other things)

I get a pretty much smooth experience with every sim (FSX DX10, P3D 2.5, XPX, DCS) on my system, with reasonable settings! Probably due to the usage of DX11, P3D seems to be able to deliver more eye candy at a (to FSX) comparable frame rate, quite easily.

In terms of smoothness, XPX is unsurpassed (in my experience and on my system), especially if you consider the amount of autogen/facade, the detail on water, and the quality of shadowing it can display without getting stutters!

Here is an example where I wanted to share some beautiful OSM scenery freeware). It's taken from a live stream, and the short pauses you can notice here and there are caused by taking screen shots:

This isn't the X-Plane forum... so we're going off topic... but it's never, ever been a good performer on my system.

 

No Rich, my post was in reference to the one above yours... you posted while I was posting and got between.

My baseline for smooth, is a flight with modern (last 5-7 years old) equipment, using FS9.  I get absolutely no stutter, micro, or normal. Fluid animation of everything upon the screen at my locked down FPS of 30.  

 

I judge XPX, P3D, and FSX:MS using the above....to define that I had a smooth flight, or there was animation stutter or not.

 

 

I could go into why your approach is flawed... but... there is no way to get someone to see beyond their own preconceptions. True for all of us.

Smooth!

A PC with all its parts working as well as they can to bring "smoothness" 

 

To me smooth is 30 fps(locked) when using TrackIR. 

 

With the PC I have now and P3D on a Samsung SSD reading @550MB/S i get just that...smooth flight. The SSD does not give anymore FPS but if and when it needs to load something then at the rate above adds to smoothness. 

e.g PMDG does not pre load all sounds, when starting an engine before I got a stutter and that was on a 200 MB/s SSD but now nothing.

 

I would gauge smooth.

Taxi'ing even 10kt feels a good speed, looking sideways at taxi way markings/lights all move without stuttering.

 

A bigger test when taking off and landing looking sideways and the airport moving smoothly at 30fps.

 

Moving your view fast within the VC with TrackIR and everything moves at the rate of your movement. No lag. 

 

Landing a PMDG at 30fps is nothing like trying it at 20fps. It brings a smoothness to small inputs that 20fps cannot.

 

Smoothness to me is a constant 30fps every where and with every movement with no stutters. You can get stutter at 60fps. Smoothness is stutter free.

For me, SMOOTH is when you stop TWEAKING and start FLYING.

Pierre

Wings of Prey is as smooth as smooth gets.

A 60hz LCD display will never show more than 60 frames per second. Ever.

 

A 120hz LCD display will never show more than 120 frames per second. Ever.

 

What number am I really seeing then when I see 160?  What does that actually mean?