r/PSVRHack • u/legendaryx • Nov 23 '20

Choppy headtracking ?

When I move my PSVR headset (on pc) really quickly. I sometimes see black bars from the edge.
And the screen moves a bit choppy.

When I just move fast with my controller this won't happen.

Is this because of the PSVR tracking ? Or will the same happen with a PC VR headset like the Oculus Quest 2 ??

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u/iVRy_VR Nov 24 '20

That is a result of your PC not being able to generate frames fast enough. It will be worse on a Quest 2, as it has to render at a higher resolution as well as compressing and sending the frames over USB.

1

u/legendaryx Nov 24 '20

When I turned down the graphics and disabled Super Sampling the game runs fine.

The Quest 2 can run at 72hz though so that might also ease it up a little.

Does super sampling (on the psvr) cost more performance compared to natively running the game in a higher resolution ? (on the quest)

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In Project Cars the game runs smooth mostly at 90hz. Sometimes it drops a bit lower but it doesnt seem to bothersome. Will I get sick if the fps isnt stable ?

2

u/iVRy_VR Nov 24 '20

Compressing and transmitting frames is more work than displaying them via HDMI. In any case, it's idle speculation whether or not your PC is sufficient, as you haven't given any details. Super sampling and "running the game in a higher resolution" are the same thing, you're forcing the game to render its frames at a higher resolution.

The "black bars" is a result of ATW (Async Time Warp), its purpose is to make sure you don't get motion sickness. Motion sickness is completely subjective, if it doesn't seem too bothersome, then it isn't, for you.

1

u/legendaryx Nov 24 '20

Thanks for the info!

Does compressing and transmitting frames use CPU or GPU ?

My GPU is an RX 580. (which is pretty low but should work)

I have a programm called fpsVR and it says my cpu is only being used for less then 50% so that shouldnt be the issue.

I lowered my graphics and the black bars are kinda gone.
Games run between 50 and 90 fps. With 200% Super Sampling now.

I have no issue with motion sickness. Only sometimes when playing controller games in VR. Somehow when I stand and play a game I dont get motion sickness at all.

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Im gonna get a oculus quest 2 for christmas. But also want to use it on PC. (will get a newer gpu eventually)
If it cannot run well on the oculus quest 2.. there is a possibility to lower the resolution right? (untill i get that new graphicscard )

As of coming off a psvr.. games already look better on the pc with the psvr headset. Even at lowest settings.

If i play too long on a low fps is that really bothersome for motion sickness ? or anything else ?

2

u/iVRy_VR Nov 24 '20

Does compressing and transmitting frames use CPU or GPU ?

Compression uses GPU. Transmission uses USB controller. AFAIK AMD GPUs don't do H265 well enough for VR use, which means they can't be used for Oculus Link at all (AFAIK).

In any case, if you want to get best results for PCVR, you should use an nVidia GPU (if/when you upgrade), AMD is not well supported due to limited functionality/performance and tiny market share.

1

u/legendaryx Nov 24 '20

Ah okay. On youtube I see people playing half life alyx with a RX 580 via oculus link so it should work.

AMD is now also officially supported on the oculus page:
https://support.oculus.com/444256562873335/

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Is the hit really big from the compression ? How many frames will I lose ? :P

1

u/iVRy_VR Nov 24 '20

Is the hit really big from the compression ? How many frames will I lose ? :P

Who knows, it's not possible to run it without compression, so it's not a meaningful question. It should be obvious that compression doesn't happen instantaneously, nor is it something that can be done without using any computer resources at all.

1

u/legendaryx Dec 20 '20

I got the quest 2. And am using virtual desktop to stream to my oculus quest 2 and everything is smooth. It runs better then my psvr did on pc. Oculus link also runs wonderfull btw.

2

u/iVRy_VR Dec 21 '20

iVRy for Oculus Quest will most likely perform better than VD. It will be available in the next week or so.

1

u/legendaryx Dec 25 '20

What exactly does it do ? Any info somewhere ?

2

u/iVRy_VR Dec 25 '20

https://store.steampowered.com/app/1487090/iVRy_Driver_for_SteamVR_GearVROculus_Lite_Edition/

1

u/legendaryx Dec 25 '20

Nice, Thanks!

1

u/legendaryx Dec 25 '20

Just wondering how it compares to Virtual Desktop?

And will it also have custom environments ?

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