Pimax Crystal strange transient artifacts extreme left and right?

[MichaelJWP15]

Just got my Pimax Crystal (using it with a 4070) and it's looking great so far, though I really need that Pimax DFR release

One strange thing is as I turn my head quickly left and right, the render view seems to need a few frames to 'catch up'. So if say I turn my head quickly right, it looks as though there is a transient black area at the extreme right of the view, which renders normally a couple of frames later. Opposite effect if I turn my head quickly left.

Anyone seen this? I have foveated all turned off at the moment...

Thanks - Michael

ASUS RTX 4070 | Intel Core i7 13700K

[speed-of-heat]

are you by any chance using reprojection ?

[MichaelJWP15]

I don't think so, but can't see a setting for that?

I have had many VR headsets since the days of the Oculus DK1 but even though I used to be a 3D graphics programmer, I still find the number of places you can tweak settings very confusing and overlapping (DCS options / PimaxOpenXR / OpenXR Toolkit / NVidia Drivers / Windows settings etc. etc. Don't know how non-technical people manage to set up and optimise their VR sets..

[dburne]

6 minutes ago, MichaelJWP15 said:

I don't think so, but can't see a setting for that?

I have had many VR headsets since the days of the Oculus DK1 but even though I used to be a 3D graphics programmer, I still find the number of places you can tweak settings very confusing and overlapping (DCS options / PimaxOpenXR / OpenXR Toolkit / NVidia Drivers / Windows settings etc. etc. Don't know how non-technical people manage to set up and optimise their VR sets..

 

This - is why VR is no where near close to mainstream yet.

[DragonJockey]

Hi Michael,

In Pimax Client :

1)- Turn OFF - "Fixed Foveated Rending"

2)- DISABLE "SMART SMOOTHING" (if Enabled).

See if above fixed it.

[MichaelJWP15]

Thanks, DragonJockey but both of those are already turned off in the Client

It's not a dealbreaker but slightly annoying.. more apparent at lower framerates

[WipeUout]

2 hours ago, MichaelJWP15 said:

more apparent at lower framerates

Then it seems that your GPU can't keep up with the refreshrate of the HMD.  You have three possible approaches: 1-lower your settings, 2-lower your HMD refresh rate (I think that the Crystal does not allow lower than 90hz), 3-Upgrade your GPU.

 

[MichaelJWP15]

Lowering my settings will be the only recourse probably as I am not upgrading my GPU again for a while, but waiting to see how much eyetracking DFR helps when Pimax push that out of beta

[dburne]

8 minutes ago, MichaelJWP15 said:

Lowering my settings will be the only recourse probably as I am not upgrading my GPU again for a while, but waiting to see how much eyetracking DFR helps when Pimax push that out of beta

 

Oh it will trust me, if it does as much with the Crystal as it does with the Aero.

[WipeUout]

Just going for FFR on my 8kX shreds 1 to 1.5 ms on my GPU frame time, DFR will give even more.