Motion Smoothing On/Off

[heloguy]

Quick question on Motion Smoothing. I have mostly played with this turned off, as I remember back when I had an Oculus Rift, ASW caused a lot of artifacts I preferred to not have to deal with, mostly with gunsights on WW2 A/C, and HUDs with modern A/C.

 

I'm running a Valve Index now, and have Motion Smoothing set to off in Steam VR. I don't get any artifacts, and I see 80-90fps when operating in the GUI/Main menu, but I never see anything above 45fps when I'm actually flying in the 3d engine.

 

Am I doing something wrong as far as settings? I know, with anyone, YMMV based on the rig you have with any settings, but my guess right now is that Motion Smoothing is off, based on the FPS I get on the menu screen, but I'm not sure, since I don't seem to ever see anything above 45fps in game. Just want to make sure it's a performance thing, and not me missing something easy.

[Taz1004]

Depends on what module you play and what you can tolerate but I'd recommend Motion smoothing off for Index. You could get distortion from ghosting like below.

 

 

And you wont get above 45 fps unless your system can push to 90. It's always 90, 45, or 30. No in between with SteamVR. So push your graphic quality as high as you can without it dropping below 45.

 

Also, in your global SteamVR setting, adjust the resolution closer to Index's native resolution. That means lowering the %. Then adjust to your preferred SS resolution in Per Application setting under Video. Leave in game PD to 1.

Basically there are 3 places to adjust pixel density (super sampling) and they get multiplied and becomes a mess. Just keep it to one. And go by the resolution #. Not by % number.

Edited August 20, 2020 by Taz1004

[heloguy]

Taz, thanks for the reply. I noticed that video earlier, and that is exactly what I remember with the Oculus Rift with ASW.

 

I guess I just assumed that 100% was the native resolution, but I see that's different now, after some Googling.

 

Does the Per Application setting add to the global setting? Or is it a replacement for the global setting?

[heloguy]

Ok, nevermind, figured it out. Looks like it multiplies it.

 

I set everything to around my native res for the Index, and I saw my frames in engine jump up to between 75-80fps when I wasn't looking at anything, and between 45-50 when I was looking at heavy activity (fire, tracers, explosions, etc).

 

Looks like I might have some overhead, but not much.