reported HDU lines and numbers distorted in VR when looking up when mixing with blades

[imacken]

In VR, if I look up with the HDU on so that the rotor blades movement are seen, then all the numbers and lines on the HDU display become distorted and sort of swirly.

This is very similar to the issue we had some time ago with the propeller in the Spitfire. 

This only happens when Vive Motion Compensation (Vive's equivalent to Motion Smoothing in SteamVR) is switched on. It's OK with it off.

Edited April 3, 2022 by imacken

[imacken]

@BIGNEWYhas this one been missed? Thanks.

[frostycab]

As you say, it appears to be linked to SteamVR’s motion smoothing or equivalent functions in other software. The same thing has always caused problems for me in the warbirds where the propeller would cause tearing on the projected gunsight which would vary depending on power settings. I just leave it off now. It’s actually made things much smoother all round. 

[imacken]

Yep, as I said above, it's the same as what happened with propellers in some Warbirds, particularly Spitfire, but the thing is, that issue was resolved by ED, so I see no reason why this shouldn't.

Turn it off?  No thanks, as the ghosting looking to the sides of fast moving jets with it off is too much to bear!

[Marklar]

These artefacts also happen in openxr with MR turned on but since openxr is not officially supported in DCS I won't hold my breath :).

[RuskyV]

It’s the same for me in the rift s with ASW set to auto.

[BIGNEWY]

Im not seeing it in my reverb G2 seems normal for me, will ask others to check

[imacken]

BN, do you have Motion Smoothing (or whatever the G2 equivalent is) switched on?

[jaylw314]

5 hours ago, imacken said:

BN, do you have Motion Smoothing (or whatever the G2 equivalent is) switched on?

Do you have a Reverb G2 or WMR headset?   If you're running through SteamVR, you can test if that's the problem by going to the WMR for SteamVR settings in the SVR dashboard and selecting "Disable" for Default Motion Reprojection.  I've not found the SteamVR per-app settings to be reliable for DCS

you can also do the settings from your desktop (from Thud's VR4DCS blog):

• (X):\Program Files (x86)\Steam\steamapps\common\MixedRealityVRDriver\bin\win64\OpenVRSettingsUX.exe

Edited April 6, 2022 by jaylw314

[imacken]

4 minutes ago, jaylw314 said:

Do you have a Reverb G2 or WMR headset?   If you're running through SteamVR, you can test if that's the problem by going to the WMR for SteamVR settings in the SVR dashboard and selecting "Disable" for Default Motion Reprojection.  I've not found the SteamVR per-app settings to be reliable for DCS

you can also do the settings from your desktop (from Thud's VR4DCS blog):

• (X):\Program Files (x86)\Steam\steamapps\common\MixedRealityVRDriver\bin\win64\OpenVRSettingsUX.exe

 

Thanks but please read my original post.

[jaylw314]

4 hours ago, imacken said:

Thanks but please read my original post.

Yup, missed that, sorry!  

[5ephir0th]

This is not a problem from DCS but from the interpolation methods of VR devices, it happen on Oculus HMD with ASW enabled too

[imacken]

I’m not so sure. As I said above, the same issue with Warbirds was resolved by ED. 

[frostycab]

1 hour ago, imacken said:

I’m not so sure. As I said above, the same issue with Warbirds was resolved by ED. 

Not for me last time I flew in one, but I will try again in the next few days to see if any recent updates have changed anything.

[YoYo]

Its a case of motion reprojection, turn in off and will b fine ;).

[speed-of-heat]

On 4/2/2022 at 11:28 AM, imacken said:

In VR, if I look up with the HDU on so that the rotor blades movement are seen, then all the numbers and lines on the HDU display become distorted and sort of swirly.

This is very similar to the issue we had some time ago with the propeller in the Spitfire. 

This only happens when Vive Motion Compensation (Vive's equivalent to Motion Smoothing in SteamVR) is switched on. It's OK with it off.

 

I get the same issue using the OpenXR mod and WMR, it does seem linked to Motion Reprojection (or at I guess an equivalent technology)  in VR as without it I don't get the distortions.

How practical flying without MR is an exercise for the individual, I find that flying without it introduces another series of artefacts when looking out the side in particular whilst in flight (stuttering or juddering even the the framerate is well above 60) ..

[imacken]

1 hour ago, speed-of-heat said:

I get the same issue using the OpenXR mod and WMR, it does seem linked to Motion Reprojection (or at I guess an equivalent technology)  in VR as without it I don't get the distortions.

How practical flying without MR is an exercise for the individual, I find that flying without it introduces another series of artefacts when looking out the side in particular whilst in flight (stuttering or juddering even the the framerate is well above 60) ..

Yep, flying without it is horrible with all the stuttering and ghosting when looking to the side. Glad to see it’s happening on G2 and other headsets and not just my VP2. So, hopefully, BN can report this. 

3 hours ago, YoYo said:

Its a case of motion reprojection, turn in off and will b fine ;).

I said that in my original post!

[speed-of-heat]

18 minutes ago, imacken said:

Yep, flying without it is horrible with all the stuttering and ghosting when looking to the side. Glad to see it’s happening on G2 and other headsets and not just my VP2. So, hopefully, BN can report this. 

you need to get BN to turn on MR/MS, he typically runs with it disabled, which having tried i know i can't 

[imacken]

Just now, speed-of-heat said:

you need to get BN to turn on MR/MS, he typically runs with it disabled, which having tried i know i can't 

Yep, that’s why I asked him the question further up. He hasn’t replied though. 

[BIGNEWY]

thanks for reminding me why I dont like motion smoothing. 

Reproduced and reported. 

thanks

[imacken]

Thanks BN.
Fly through the streets of Dubai looking to the side with and without ms/mc and you’ll see why I can’t live without it!

[jparker36]

@BIGNEWY, any update on if there's a fix in the works for this?

[BIGNEWY]

1 hour ago, jparker36 said:

@BIGNEWY, any update on if there's a fix in the works for this?

No news to share, the report is still open.