whitav8

His (the above video) major change is to run Quest2 at 60Hz - anybody care to comment maybe about 60Hz "flicker" and then about looking out the sidewindow stutter if the update rate is only 30Hz?

I was going to suggest that you might have a CPU frame limit set in NVCP or Riva Tuner or OXRTK (OpenXR Toolkit) or ... I suggest starting in a high performance scenery area like the Mt. Everest Discovery Flight (First row, third one over) in 2D and see if you get about 120 to 130 FPS (in 2D). I have a 9700K@5Ghz and a 3080ti +Quest2@72Hz. Then go to VR and start locked at 45Hz just to check, and then turn ASW off (Disabled) with ODT and see if you don't jump up. I get about 70 to 73Hz with my 3080ti. Yes, I think the encoding of the image takes maybe 5->7 milliseconds (I run 3648 encode width with 200mbps encode rate) but I believe that just adds to latency and not to frame rate loss. With your 4090 and 5ghz CPU, you might get 80->90fps in that limited scenery (if you are running the Quest2 at 90Hz). Of course, the reality is that with more substantial scenery and airliners, you will drop to 50->60 and maybe still be better off with 45fps ASW. I hope that you are using the OXRTK to try out various options - even just the realtime HUD info with appCPU and appGPU times are valuable to me. I use OculusDebugCLI.exe scripts to try various options and use VoiceAttack to execute the BAT files so that I don't need to take off the Quest2 headset. I'm sure you will enjoy the 4090

@Tony, Just a quick point for the future. Driving THREE 4K displays at 4K (not 2K) with a single Nviidia 1080 will not work very well performance wise - maybe at 30Hz - but still that will drag down the GPU - that is a LOT of pixels. Just stick with three HD (1080 monitors/HDTVs) for now. You need to build and test and iterate. Get your new PC - whatever you can afford - order it from some company who will deliver it already overclocked at 4.4Ghz then install Win10 and Prepar3D. with a SINGLE 1920x1080 monitor, load up an airport scene and an aircraft that will be your first test (start with default scenery and default aircraft at the start of a runway) and adjust (usually reduce) Prepar3D graphic settings until you get about 100 FPS. That will be the best you can hope to achieve. Now add in the other two monitors for the side views and add the new views - at that point you should see an average frame rate (FPS) of 30 to 40. Now you can try your first particular addon scenery and aircraft to make sure you don't lose very much performance and make sure that it seems smooth - minimal stutter. Now you can add the other monitors and bring up the 2D panels. Instead of actual flying, I use the slew keys and set up a forward speed of maybe 100 knots, a little bit of bank, and then some yaw at about 200 feet so I can watch the frame rate and smoothness without needing to concentrate on flying.

I agree with the above response from Oliver - networking two Prepar3D computers calls for some tricky setups and the cost of two Prepar3D licenses - though it can be done. Most folks use either Wideview (http://www.wideview.it/wideview.htm) or OpusFSI (http://www.opussoftware.co.uk/opusfsi/downloads.htm) - but I would study their forums looking for recent entries to see if they are able to keep up with all the Prepar3D updates and will they provide all the features that you want (traffic/weather,etc). A single highend PC (get a 6 core if you can afford it as long as you find forums that say it can easily be overclocked to at least 4.4Ghz) as you have listed - with two Nvidia 1080s (not SLI'd - the second card could just be a 1070) should be able to drive all the monitors using four ports (along with Display Port to DVI (or whatever) adapters plus the HDMI) per video card for a total of eight. With reductions of settings (reduced shadows, reduced traffic, and medium water and such), and the CPUs at 4.4Ghz or so, you should be able to get about 30 to 40 fps even with all the 2D displays and 3 separate scenery views. As mentioned by Oliver, only some of the aircraft that you may be interested in will provide the 2D display windows you want, but for aircraft like 737/777 you could use SimAvionics (http://www.sim-avionics.com/) or equivalent. Be very careful as to the choice of terrain scenery addons looking for high performance products - always study the forums looking for multimonitor user complaints first. Some eye candy will just slow you down. Make sure you search the various forums (this one especially) for multimonitor setups - there is always the issue of getting the horizon and zoom alignments correct on multiple view out-the-window setups. There are several companies that provide part task trainers that use setups like you are trying to build - and most of them use a single PC - example (http://www.platinumsimulators.com/) Best of luck

@bobaz, Perhaps one point of confusion for you is that Lockheed-Martin has advertised support for Oculus but the one problem is that they are not yet building to Oculus Runtimes 1.3 or higher (now at 1.5 which is required for CV1). Anyway, L-M does not address the many issues that FlyInside handles already as far as supporting multiple windows (non P3D even) being imported into the cockpit and providing for Asynchronous Time Warp support as well as DSR (higher resolution images then downsampled).

Another approach in order to try before you buy (into Win10 issues), is to simply set up a dual boot. You just need maybe 100gb somewhere on your Win 7 system - hopefully SSD space, make a fresh install of Win10 (install P3D on it - L-M is OK with that - i.e. you now have two different installs of P3D - allows you to try v3.2 and then 3.3 for example). I like the flexibility and the cleanliness of fresh installs under WIn10. I will admit that I still end up on Win7 more often just because I have a lot of apps there. I feel the Win10 and P3D is smoother - fewer stutters - especially for Oculus Rift flying.

Make sure you use the Oculus Debug Tool capability for setting the value, Pixel Per Display Pixel Override to 1.500 or so for improved clarity with either DCS World or War Thunder. Both of these freeware apps run a bit more smoothly than P3D for me and give you a chance to try something else than FSX/P3D to compare the flying experience. I really enjoy flying old pre WWII aircraft in War Thunder - just try a Test Flight so you can fly and see the 3D virtual cockpits (not every aircraft has one though).

@denali, I'm not really sure at all, but I think Nikola is talking about using multiple separate views (which definitely slows down the FPS performance) - each of which is maybe 60- 70 degrees horizontal field of view. Even with that approach there is need for bezel alignment and some distortion correction so that the horizon behaves well for a certain eyepoint. Their realtime distortion correction was originally designed for multiple projectors that need distortion correction and edge blending. They are now taking their knowledge into the use of large HDTVs and LCDs. I know you were working on the use of just one very wide view. Dave

@GSalden, Thanks for your ideas on the proper approach. Unfortunately, currently we are using a Matrox TripleHead2Go to drive the three monitors so the center unit is part of a superwide single screen. Perhaps we could try separating them into the two side windows and the center being a single NV controllable monitor. We may really need the Immersive warped approach to get as good a proper horizon as possible with as little side windows stretching distortion as possible. Is that issue very important to you? Thanks for your time and thinking on this issue!! Dave

@FlightSimDimm, How can you control the overall horizontal field of view? I seem to get a reasonable result for a low zoom (maybe +-50 degree) fov on three screens but I would like to set it so I almost see +-85 degrees. Do I just move the eyepoint or what? Also, I still notice objects (like other aircraft or the control tower) on the ground that as I yaw around in SLEW mode are still quite a bit larger near the left and right edges - is that your experience?

@FlightSimDimm, OK. I downloaded that tool and found that I need Immersive Display Pro with is about $200 or so to actually get the warping. I emailed the dev and he says they don't yet support the rotated display - but are looking at it. Great support from them - very responsive.

@FlightSimDimm That looks like the proper tool for sure - but I couldn't see how to purchase it on their website - any ideas? Also, the one issue as I mentioned is that even though the three monitors (large 60 inch HDTVs) are on one Matrix splitter, the center one is rotated 90 for better vertical FOV. I will try to communicate with the Immersive folks. Thanks again Dave

@flyingsub1959 Thanks for the suggestion but it appears that they assume a fixed zoom=0.7 which wouldn't work for this application. I need to probably adjust the zoom. Dave

I need some camera.cfg (or whichever file) window calculations help for a friend with three HDTV (1920x1080)monitors - separate non-virtual cockpit views(not Surround), on three monitors - but with the center one rotated 90 degrees. It will be used with mostly helicopter simulations so he wants more vertical FOV for the center view. We aren't sure whether to rotate the center view using the Nvidia control panel or just have a 90 degree rotation in the cameras.cfg file. I expect he wants about +-22.5 (45 total) horizontal degrees for the center view horizontal and maybe +-30 (60 total) horizontal degrees for each side view with a few degrees for the bezels. At one time, there was a spreadsheet that a user had provided for these calculations - is there anything like that these days for P3D?