More realistic turbulence and airframe effects

[reecemj 146]

2050 where is Nick N guide? Thanks

[Bob Scott 7,721]

Its the same CPU processing the Flight Dynamics and Eye Candy, so one goes up other must come down.

 

No, actually that's not completely true in P3D...with DX11 the workload associated with "eye candy" has largely been handed off for processing by one or more dedicated GPUs.  Much of the complexity in the "eye candy" department has no real effect on the CPU, at least not until the GPU is loaded up to the point of driving a drop in frame rates due to limits in how fast it can process the frames being sent to it.

 

If I keep my GPU loads to <85% and the frame rate constant, I see no difference in flight dynamic performance as I change the graphics settings.  So my conclusion is that there is no tradeoff between graphics and flight dynamics until the graphics subsystem gets loaded up enough to slow down the simulation core...and even then at that point I'm still not convinced. 

 

Regards

[Simmer2050 28]

@Reece

 

Check simforums for thread "Switch to P3d" for nicks new p3d guide in the making on that thread

 

nick n

 

enough words for google search I hope,  would have post link , but cant use this avsim editor, very unintuitive.

[AnkH 2,266]

No, actually that's not completely true in P3D...with DX11 the workload associated with "eye candy" has largely been handed off for processing by one or more dedicated GPUs.  Much of the complexity in the "eye candy" department has no real effect on the CPU, at least not until the GPU is loaded up to the point of driving a drop in frame rates due to limits in how fast it can process the frames being sent to it.

 

If I keep my GPU loads to <85% and the frame rate constant, I see no difference in flight dynamic performance as I change the graphics settings.  So my conclusion is that there is no tradeoff between graphics and flight dynamics until the graphics subsystem gets loaded up enough to slow down the simulation core...and even then at that point I'm still not convinced. 

 

Regards

 

I second this. As long as you do not run P3D or FSX with unlimited FPS, therefore maximizing the load on both CPU and GPU, there should be no difference in flight dynamics independent of the settings. Unless of course you drop far below your limits. E.g. if you limit your FPS to 30 and your computer manages to hold those 30FPS in all cases, this would mean that NEITHER your CPU or your GPU is running at 100% (or close to 100%). In such a scenario, which is in my case anyway the goal to achieve, it is impossible that reducing the settings further down would improve flight dynamics. However, if your computer is running at its absolute limit, providing only 10-15FPS in heavy load situation, then yes, I guess lowering the settings and therefore increasing your FPS will also improve the flight dynamics.

 

So, after all, this flight dynamics issue is another good point why NOT to set your FPS to unlimited inside FSX or P3D...

[Simmer2050 28]

Bad weather is really where you get turbulence

 

By that time you have lots of clouds to process, and normal turbulence becomes jerky movement.

 

My experiment was not technical or scientific

 

Just made a few flights with p3d to setup my system, once I was happy then decided to up the sliders to around 80%

 

and the next flight was a revelation to me on how sliders affect  flight dynamic.

 

System = i7490@4.79Ghz Ram2800, TitanX. Test Aircraft default Mooney Acclaim.

 

 

Thanks for the tip on how GPU max load is supposed to be where CPU that's to feel the pinch, will check that.

 

But if you never tried P3d fsx with nvidi set to max performance instead of max quality, and sliders set lower, then you missing an aspect  behind the sliders.