What can I improve?

[windsurfingstew]

I recently bought a Meta Quest 3 headset and a top of the range Radon graphics card. My CPU and RAM are also top end. Despite this I'm still getting mostly 36 (but starting at 72 fps) with relatively basic settings. After takeoff things slows down to 36ish and stays there, even when scenery is minimal.

My graphics card has standard settings. My OpenXR tookit is default settings. I have a USB link cable that I've verified is up to standard.

Given the amount I spent on a super powerful graphics card 7900 XTX, I was hoping for richer settings, or a constant 72 fps.

Any thoughts?

Edited November 28, 2023 by windsurfingstew

[av8orDave]

Some thoughts are below. I'm sure you'll get plenty of "advice."

Here is what works for me:

1) Turn anti-aliasing to DLAA, and upscaling to DLSS.

2) Turn sharpening to 0.5

3) Terrain textures can be High unless you don't care about them

4) Shadows can theoretically be high

5) Turn flat shadows blur to off and Civilian Traffic to off

6) Turn clouds to low; some will disagree, but in VR the visual improvement from low to med to high is minimal but comes with a performance hit

7) Turn scenery details to 0.5

8 Turn preload radius to 60000

9) Set pixel density of 1.3 in DCS

10) Very important: Once you start up the game, hit Ctrl - Numpad 1; this turns off ASW, which will drive your FPS to 36 (with a TON of ghosting) anytime your system can't maintain 72 FPS

11) Finally, I'm getting better performance and visuals out of Virtual Desktop than I am out of the link cable. If you're interested in VD settings, glad to share but not going to type it all out unless you want it.

Good luck. Just as some commentary, you'll see conflicting advice about ASW (some people think the stable 36 fps is worth the crazy amount of ghosting), conflicting advice about whether to set pixel density in DCS, Oculus Tray Tool, Oculus Desktop Tool, OpenXR Toolkit, etc;. Setting it in the DCS settings is what works well for me. Additionally, I get a nice performance boost from using MBucchia's QuadView Foveated Rendering tool, which does work in fixed mode with the Quest 3 and provides a nice improvement in FPS. 

Edited November 28, 2023 by davidrbarnette

[Marshallman]

If I can add.... Try turning off Bloom Effect in VR......

Nimbus.

Edited November 28, 2023 by Marshallman

[av8orDave]

1 hour ago, Marshallman said:

If I can add.... Try turning off Bloom Effect in VR......

Nimbus.

 

Yep, I should have included that. Bloom effect isn't doing anything to help the cause.

[The_Nephilim]

sounds like you have reprojection (ASW) running or turned on..

[slughead]

If as you say your CPU, memory etc is top of the line you should be getting 72fps with all settings maxed out, perhaps bar shadows. You don't say what your testing method is, i.e. theatre, single or multiplayer, low over cities, or even what aircraft you are flying. That kind of information will help a bit. However, I can say I can achieve 72fps (mostly) low, fast high g turns over towns in Caucuses. Persian Gulf same scenario, no. Sinai, hell no!

I am using a plethora of tools to reach this though. For example, I am using quad-view foveated rendering and FOV set to 0.85. I am using a Quest Pro.

A few things to consider.

1. Is the motherboard set to XMP for the memory?
2. Have you forced ASW on? This will force the fps to be always half the frame rate. If you have forced it on, set it back Auto.
3. Are you overclocking your CPU? If so, could it be thermal throttling and therefore causing it to actually run slower than you expect?

[Tomcat388th]

In your Radeon settings make sure you have enhanced sync disabled and wait for vertical refresh always off.  The only thing I have enables is radeon anti lag and radeon image sharpening  set at 80%

[windsurfingstew]

Thank you all for your help.

I have taken my rig from a stuttery 32 fps with mediocre visuals, to a smooth 60-72 fps with nice clean visuals.

I have posted my complete configuration in this thread. Hopefully someone else with the Quest 3 and AMD combination finds it helpful.