5 replies to this topic

[iryan2]

I've got all graphics options set to minimum, latest drivers, 8GB video ram.

 

It seems okay when I'm perfectly still but any head movement causes horrible stuttering.

 

Sorry if this has been answered elsewhere, haven't had much luck finding mention of it.

[apophis]

Have you tried using mjr's PinAffinity program? It lets you allocate a portion of your hardware's CPUs to be dedicated to pinball related executables. It seems to do an admirable job cleaning up a lot of stutter issues. Just make sure you add all pinball related .exe's to the Pinball "type" from within the program.

[STAT]

Win 10 ? Live Security is off ?
Which Table ?
Tried to disable PF Reflections and more ?

 

Edit: ... ah ok i haven't / and can't answer to VR, sorry 

Edited by STAT, 25 February 2020 - 12:57 PM.

[iryan2]

Thanks for your input guys, not working yet though. 

 

I tried PinAffinity but when it's running, SteamVR immediately crashes

 

System details:

i5-4670K 3.4GHz 

Radeon RX 480 video card (8GB)

16GB RAM

Windows 10

Oculus Rift (CV1)

 

Tables tried:

VR ROOM Medieval Madness

Addams Family VR

Jurassic Park (not vr)

 

All have the same stuttering issue. SteamVR's performance panel tells me it's rendering the frames in half the required time (~6ms for 11ms target - 90fps)

 

PF Reflections is off. Supersampling set to 100%. I've tried "Direct Display Mode" via SteamVR's developer settings, tried dialing back the global and per-application supersampling. Performance gets better according to the performance panel, but stuttering remains. I've turned off or set to minimum every available graphics setting.

 

The VR preview panel on my primary monitor appears to not have the same issue - it's fast and smooth. 

 

According to Task Manager my CPU and GPU never exceed 70% utilization. Stern Pinball Arcade VR via Oculus Home works fine. I've tried the 64bit variant of VPinballX_GL (VPVR).

 

The best way I can describe the stuttering is it looks like it's displaying the previous frame after updating, like it's constantly jumping back and forth between the current frame and previous ones.

 

It's most apparent with lateral movement. I've just checked again and there seems to be no issue when I'm just rotating my head, it's only when I'm leaning or moving up and down.

 

I guess I'll keep searching forums for what I'm describing in SteamVR in general - it seems like the problem relates to headset tracking, but only in VPVR / VPX - SteamVR home is fine and so are games played via Oculus Home.

 

Update: I was wrong about other SteamVR titles working without this problem. I just didn't notice because things are far enough away in SteamVR Home that it was subtle. Move right up against a wall, lean left and right, and bam - same problem I'm seeing in VPX. 

Edited by iryan2, 26 February 2020 - 08:22 AM.

[Rawd]

Unfortunately,  You may need to upgrade your video card.   I am running a 980ti, which is about 50% faster than a Radeon 480, and I am not able to run all of the tables perfectly.   Some of them run great, but with some of them, I get the head stutter like you mentioned.

 

https://gpu.userbenc...-480/3439vs3634

[blindpeser]

True, I have a 1080 and I also face some stutter from time to time. Decrease the supersampling (below 100%) and deactivate the real time protection. This could help a bit. You also could share your vpx vr- and video settings, maybe there is something to be optimized.

Not sure if amd has similar settings features, nvidia allows to increase the prerendered frames, which helps a bit.

Edited by blindpeser, 26 February 2020 - 07:42 PM.