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DennyA

Optimizing VR performance on V5?

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Curious as to what y'all do to get the best framerates in P3D V5 VR. I have a Rift S and while I can get a steady 40 fps (1/2 the 80 max) with simpler planes, over really nice scenery I get closer to 20-30 fps in more complex planes like the DC Designs F/A-18E. Flyable, but jerky updates.

Turning off automobile traffic helped a lot, and I haven't gotten around to replacing any stock AI yet so no added overhead there. Running OrbX PNW and the Drzewiecki Design Seattle City/Airports X. I realize I'm adding to things with the add-on scenery, but just wondering which settings have the most effect on VR performance so that I can enjoy the best compromise between performance and realistic scenery.

Would love to hear what graphics, detail, etc. settings y'all have found have the most direct effects on P3D V5 framerates.

Computer is a Core i9-9900X with an RTX 2080TI, so it's not anemic hardware at fault. :)


DennyA
Fake planes flown: MSFS / P3D v4.x / FSX / X-Plane 11 / Aerofly FS2 / IL-2 / DCS / FlightSafety 737-200 full-motion (Aloha 243 cockpit) / a zillion old sims
Real planes flown: Mooney 231, Cessna 310, F-15D (back seat), T-34B (front seat) 

Ancient computer magazines I wrote about flight sims for: Computer Gaming World, Computer Games/Strategy+, Compute!, AmigaWorld
Rig: Core i9-13900K, RTX 4090, 32GB, HP Reverb G2, Winwing HOTAS and Turtle Beach pedals

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Run in steam vr mode, not oculus mode.

Godrays off, dynamiv reflections off. Care with tree and building shadows.

i fly complex planes over dense scenery snd am very happy.


Oz

 xdQCeNi.jpg   puHyX98.jpg

Sim Rig: MSI RTX3090 Suprim, an old, partly-melted Intel 9900K @ 5GHz+, Honeycomb Alpha, Thrustmaster TPR Rudder, Warthog HOTAS, Reverb G2, Prosim 737 cockpit. 

Currently flying: MSFS: PMDG 737-700, Fenix A320, Leonardo MD-82, MIlviz C310, Flysimware C414AW, DC Concorde, Carenado C337. Prepar3d v5: PMDG 737/747/777.

"There are three simple rules for making a smooth landing. Unfortunately, no one knows what they are."

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dynamic lighting kills my frames in vr . Just found my memory was not set correctly at right frequency gave a big improvement. I use PD 1.6 to 1.8 depending where. Turn off ASW  in v5 it is broken .Unlimited frames or limit to 120  no vsync and use pre render for v sync .FFTF helps me as well .


Colin hodds

I7 9700K,nvidia 3090 ,ssd ,32gig 3200mhz ram ,win10,prep3d

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On 6/4/2020 at 9:32 PM, OzWhitey said:

Run in steam vr mode, not oculus mode.

Definitely definitely this. 

Also

1. Use Oculus Tray Tool. With SteamVR you can run smoothly with good ASW at 30fps ( actually 27) if necessary if you cannot hit 45 (actually 40). I think the Oculus implementation of ASW is faulty in p3dv5. SteamVR video res set at 150%

2. A bit of voodoo, but turn off the "maximize to fill screen" checkbox in p3d.

3. Process Lasso. I have an 8 core AMD, run p3d on cores 4,6,8,10,12,14 and everything else including Oculus and SteamVR on 0-3. Don't let p3d hyperthread.

4. nVidia inspector, Sparse Grid SS x 4 with MSAA x 4 cleans up the sparkle beautifully. Clear your shaders after any change to nVidia inspector and you MUST have MSAA on in sim for SGSS to work.

5. Framerate in P3d set to unlimited or maybe 120. 

5. Prerender frames in VR settings probably helps. 

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On 6/5/2020 at 11:26 AM, cannow said:

Just found my memory was not set correctly at right frequency gave a big improvement

Can you elaborate ?  How did you determine correct clock setting?

thx


rgds, JB

Intel 11900K @ 5.0GHz, MSI Z590, 32GB G.Skill 3600Mhz, RTX 4080 MSI Ventus, GoFlight modules, HP Reverb G2 VR, FlyVirtual.net, Private Pilot SEL rating

 

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Using my motherboard gigabyte utility .


Colin hodds

I7 9700K,nvidia 3090 ,ssd ,32gig 3200mhz ram ,win10,prep3d

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So it turned out the killer was OrbX Vector. In P3D v5, having the road networks, railroads, etc. turned on decimates performance. Turning those off (but keeping the coastlines and a few other light-touch additions like golf courses), my frame rates smoothed out and mostly quadrupled.

It's now quite playable. Even in the worst-case scenario (Seattle area with details cranked), when the frame rates drop, the updates are still smooth rather than stuttery.


DennyA
Fake planes flown: MSFS / P3D v4.x / FSX / X-Plane 11 / Aerofly FS2 / IL-2 / DCS / FlightSafety 737-200 full-motion (Aloha 243 cockpit) / a zillion old sims
Real planes flown: Mooney 231, Cessna 310, F-15D (back seat), T-34B (front seat) 

Ancient computer magazines I wrote about flight sims for: Computer Gaming World, Computer Games/Strategy+, Compute!, AmigaWorld
Rig: Core i9-13900K, RTX 4090, 32GB, HP Reverb G2, Winwing HOTAS and Turtle Beach pedals

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