By the way: I saw somebody write that there IS in fact a startup option that lets you to disable the dynamic quality scaling in Alyx, and SteamVR Home:
-console -vconsole +vr_fidelity_level_auto 0
I am assuming the first two arguments, that by the sound of them disable the console, are not necessary, but kept them just in case.
Seems to work, judging by a quick testā¦
I installed it, and disaster, an image like a CV1 ā¦
I go back to the previous one, same thing! I go back even further and same horrible result.
I have beautiful to chip, to deregulate, to go back, 90 Hz, 75 Hz, 120 Hz etcā¦nothing to make, always this undrinkable soup in the eyes.
Whereas since I have the Pimax, each new Pitool or Nvidia driver improved the visual result, to the point that I thought I had an in game image at 85% of a screen.
It sounds like it might be a problem with the headset firmware, not PiTool. You might need to manually update the firmware to match the previous (working) PiTool. I think the firmware is only updated if itās newer. Thereās a firmware update tool (which Iāve never used).
Hereās a list of PiTool and firmware versions. Thereās a link at the bottom of the post for the firmware āflasherā (update) tool.
Just did some testing with this pitool against PiToolSetup_1.0.1.245_R255_Beta and have found that this pitool is 5fps faster. I was using steamvr stable as with the beta I would lose steam console and get the flickering bug.
The GPU catalyst does not seem to offer anything useful. Max I would do is 4.00 which does give you increased GPU usage and added frames. Problem is you get spikes more often.
If you do not have visual judder or stutter with pitool 253 I wouldnāt upgrade. I had horrible stuttering with that version to the point that it was unplayable, and they have changed how the new versions work to improve frame timing and avoid that judder. However, people are reporting a large drop in FPS due to this technique.
It doesnāt add any āneed to haveā features, though the new beta firmware does at 144Hz for pitool 258 and this version.
I just tested 253 pitool against this version using fruit ninja. 6000x6000 roughly screen resolution. I get 65fps with this new version. With 253 I get 72fps, saying that I had the hmd at 72hz. So I increased the resolution to 6300x6300 roughly which brought me back down to 65fps. Also I did notice more spikes with the latest version. So I would stick with 253 pitool
Edit - Just tested 258 pitool. Same results as this versionā¦ 253 definitely the fastest for me
Hi everyone, why GPU usage is only around 70%, is there a way to change that? ā¦with āgpu catalyst @ 1-10ā i only get horrible stutters ā¦but around 100 FPS instead of 50-60. I dont think that CPU is the bottleneck.
BR Henry
I have no idea what the GPU Catalyst if for because any time Iāve tried it it just getās stuttery and doesnāt increase the GPU usage much at all.
I have tried with Pimax 5k+ and it is fantastic. What amazing graphics!! I can not compare the performance with other pitool versions because I didnāt play before Halflife. Really smooth and exciting. Iām not happy with the xplane vulkan version for VR. I thought it would have better performance (I have to lower āobjects in worldā severals marks and it is not nice). In my monitor goes perfect with all nearly max out.
I hope dx12 prepar3d does it better. Itās coming in 2 days.
EDITED: in DCS I think I have worse performance than older pitool versions. Besides, FFR is not working.
You must consider that ALYX is a from the ground up VR game (and really an example of excellent VR coding). As for the other three titlesā¦ you can put all the lipstick on a pig you want but itās still a pig.
Just another performance comment, specifically for Iracing. So with a bit of time on my hands, Iāve gone through and done clean installs and back to back testing on the same track.
258 alyx version runs well for me catalyst at 0
But the 254alpha still seems to have the ability to use a bit more of the gpu / for some reason has slightly higher GPU utilisation.
So +1 the suggestion to try and bug fix 254, goes great with iracing
2080s
i7-9700K 32gb ram
8k+
My controllers are arriving this week, excited
Do I absolutely need this driver for Alyx, or .253 will work fine? .253 is way faster in racing games than .258 (and thatās my primary use), so I am hoping I can stay on older version for now
You donāt need this version for Alyx. Idk if it fixes it, but there are weird issues with audio pacing and āslo moā with pimax. My oculus quest does not have these issues. Youāll see it when characters talk in longer sequences. Still - it did not ruin anything for me, best game Iāve ever played. Beat it on 255.
instead of 50-60. I dont think that CPU is the bottleneck.
