PROGRESS: WMR+Vive Motion Compensation

***See progress in the second post***

Skip all the below and visit https://ovrmc.dschadu.de/
for the solution


Hi,
Sorry I have searched but can't find the answer.

I managed to align vive controllers and vive tracker to the HP Reverb space and controllers using OpenVR Space Calibrator.
Everything works nicely

I then go to OpenVR input emulator to set my tracker as the motion compensator.
It is in the correct XYZ from the origin position and the tracker moves in the correct direction but the movement in space of the tracker is much larger than the actual real tracker movement.
It doesn't follow the actual position of the tracker, more like 2-3 times the actual tracker movement.

This happens only when I select the tracker as the motion compensator.

Anyone has any experience to solve this?

So close to find a motion compensation for my P3 DOF Reality rig with the Reverb. Vive setup worked great but the visuals in the Reverb is amazing compared.

Wish you all a happy Christmas and a happy new year!

UPDATE 2020-01-22 (Ok setup, not great)
Tested using DCS + SteamVR Beta + Windows mixed reality beta.

1. Mount the WMR controller as picture below. (I use foaming for damping)

2. Start SteamVR and startup the game.
3. Setup OVRIE: Select the WMR controller installed in front of your seat as "Motion Compensation"-device.

Issue1: When looking away from controller picture could jump.
Short look forward resets the view

Issue2: WMR controller falls to sleep.
Wiggle the controller and it wakes up again
(Keep the controller alive is a solution but I haven't found a way that works yet)

<<<---------------->>>

BELOW USING VIVE TRACKER (Fails randomly)

Ok, my progress so far.

To get the correct motion compensation I have tried to move the WMR HMD (Reverb) to match the Vive Lighthouses.
This makes the rotation center position of the Vive Tracker rotate correctly when selected as the motion compensation unit.

1. I do not match WMR Space in OPVSC (OpenVR Space Calibrator) with the Vive tracker or controllers.
2. Select the Vive tracker in the OPVIE (OpenVR Input Element) as the motion compensator.
3. Select the WMR HMD and adjust the position using "DRIVER OFFSET" to match the Vive Lighthouses + Tracker. (Tricky but after som positioning I use the Vive Controlls to adjust the menu as WMR Controllers move further away)
4. Go back and "Save" the profile.


Problems:
I tested this with DCS but when starting DCS from within WMR menu it greys out.
Could be something with the WMR HMD position that corrupts SteamVR.
At least the motion compensation is getting more realistic.
I will continue tweaking and update this thread as more findings are made.

I'm eagerly awaiting your next post as I have a reverb with a dof reality set and getting sorta fed up with no good solution.

Well it's a tough problem to solve.

I think the only way is to make version of the OPVRIE that just cancell the motion from the rig correctly with WMR.

OPVRIE is not reading the motion of the WMR and the VIVE tracker correctly when used together in motion compensation.

The movement of the vive axle point and the wmr axle point when compensation is selected is not alignt and this makes the compensation fail.

When not using the compensation the tracker moves correct in space.

Should be an easy fix for a programmer.

There is a thread looking to finance a programmer to fix the issue. I think that's our only hope.

Hi,

did you achieve to have motion cancellation with WMR and vive ?

thanks !

Hey, no real progress. Need to be programmed to match VIVE world. Now the axles are off which make compensation with vive a nightmare.

Use the WMR controller as motion comp unit and attach in front of the rig is what I use. Works okay until the controller falls asleep. Then I just shake its and it wakes again.
Room also need be furnished so the WMR headset can track on sides.

thanks for your answer

so to sum up : Reverb + Vive controller donesn't work

and Reverb + WMR controller + which software for motion cancellation ?

thanks !

OPVRIE is the only sofware I know that works as a work compensation/cancellation software.
There is a thread about WMR motion compensation but only solution is to remake the OPVRIE to support WMR+VIVE.

sorry so I don't understand

you use OPVRIE + WMR controller ?

Yes, I use Open VR Input Emulator and select 1 WMR controller. This is then attached in front on my motion platform.
It works better if you have a it stuck in some firm foam as it will be less shakey See picture above

Hi

sorry to come here again, I don't understand. Does it work ? Open VR + controller in foam + reverb = motion cancellation or not ?

thanks

Ok it's like this.
It doesn't work as a Vive setup.
With vive you have satellites and a correct motion compensation because, you have the the satellites that fix (confirm) the HMD in space.
When using WMR the motion cancellation works but with flaws. The WMR HMD will wander and the motion cancelled WMR controller (in the foam) will go to "sleep" after some time. This will "turn off" the moton cancellation.
It's the best way I found to motion cancel in WMR.

Other methods are to put tape on the WMR camera lens to cancel all motion except the "local" XYZ.
Try it out and maybe you will find a better solution and you could help out in the community aswell.

Good luck

Hi once again

do you think it would be possible to use Vive camera and tracker for cancellation, and HP reverb headset ? thanks

Hi,
It is not working (In my experience) at the moment. I can't align the WMR headset space to the VIVE tracker space when motion cancelling is active. Its works fine aligning VIVE controllers to WMR space without motion cancellation.
It's a software problem I think.

Ok thanks, did you ask or say it to the dev ?

Yes its reported but no response or change.
It should be a easy fix for an programmer. Like a tickbox "Align WMR space to VIVE space"

Check the dev page here.
https://github.com/matzman666/OpenVR-InputEmulator/issues/182#issue-543370463

There seems to be a solution.
Please visit https://ovrmc.dschadu.de/

Hopefully this will work on the Reverb G2.

Well, It should work I guess.
Just asked the author of the plugin to but a feature to keep the tracker from going to sleep.
I was thinking about some input command to send every 15sec or so, to the controller that kept it active.