OpenXR Motion Compensation Guide for VR Pilots | DOF Reality H3 | The best just got better!

As promised here is my OpenXR guide to setting up motion compensation for use with your motion platform & Microsoft Flight Simulator. It just keeps getting better!
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[@dudeinthesea]

Thank so much for the tutorial Mark, I just ordered the H3 and its good to know that motion comp is available.

[@mrjoanferre]

Thank you so much for this easy to follow guide! I have exactly the same set up as you and I was struggling to set up the motion compensation. Thanks again!

[@OverkillSimulations]

@simhangar Flight Simulation This is a fantastic and much needed video! Thank you very much for your time and efforts Mark! Well done Sir

[@iconcity]

Just purchased - for my H3 :) Thanks --- cant wait to get this sorted Mark!

[@johnwjensen]

I just set this up myself too. It's great! Totally worth it.

[@andy70d35]

Yeah, if you have a spare 4K, I would be divorced if I spent that on a motion rig, there is always the hope of a lotto win🤣

[@TheAgent4125]

Great video, took me a while to get it setup, but once I did, it works a treat! It auto starts now whenever I begin a VR session. BTW, where are you flying in this vid?

[@SimHangerFS]

South Spain

[@r44heliflyer]

Just installed the Motion Compensation as per your video. The video was perfect for a straight forward setup. All working with the DOF H3 & Quest3 in MSFS for a flight in the CowanSim H125 around Leeds. Saved me hours of reading!

[@ranroberts3808]

Very helpful, Thanks!

[@Likes2fish-rk1kf]

In the last nine months I have built a new computer and reusing my 4900 gpu and the ssd . My ssd went out on me about two months ago and I replaced it so I had to install everything new but still have the same issue. Sometimes for unknown reason it works fine but it has progressively gotten worse. I have tried everything I could find on the internet and what I could think of. Great video. Maybe you can help me. for the last nine months I have been fighting with loss of motion compensation. It mostly effects msfs 2020 but can effect population one and rarely but it has happened in the mixed reality portal. I have the reverb g2. I have two fairly new g2's so I have swapped cables , headsets, controllers ect. I have the dof reality h6. I also have a large instrument panel. It does it in x-plane 12 too. Sorry I was not able to post the full comment in one comment.

[@thomaswiik3810]

Thanks a lot for this :)

[@julianhall2008]

Thanks Mark,

[@Daniel-zy3zm]

I noticed that you’ve mentioned “yaw” is not supported. I’m seeing that in other research as well. Has this been an issue for you in anyway on a 3dof rig? I’m days away from putting a motion rig in my cart, but am unsure if I go budget with a 2dof or go with one of the 3dof rigs that are out there. Thanks a ton for putting this guide together!

[@SimHangerFS]

No, Yaw doesn’t create much head movement so has not been a noticeable factor for me.

[@daniel-cj2qf]

@@SimHangerFS Great info thank you, unfortunately this news means I'm spending more 🙂

[@rontalley]

Do you need the Wit Motion now that you can use a virtual tracker such as FlyPT Mover. I want the best experience so I don't mind buying a physical tracker. Thoughts?

[@macmusica]

MOTION SEATS are just a fake shake device which fail to act as gravity does. If you were to ROLL LEFT then sure the gravity will pull you left but would be neutral G if you also pull back to be in a TURN. This does not remove this G but dangles you instead to ignore such G and again does nothing if you were to pull more G from 0 to 8G because it can not do any of that. What would simulate adding G in a ROLL? if it cancelled the ROLL whilst in that ROLL but only adds UPWARD TILT to throw you back into the seat. Does this do exactly that? It sounds close.

[@Drmerlin604]

Hi Mark. Thank you so much for making this video. Unfortunately I am still struggling. I have an H6 and suspect I am missing something… Following your instructions exactly I get perfect motion compensation in the roll but in pitch the results are actually much worse than with no motion compensation. I would be most grateful if you could advise me what controls in the software I need to adjust to fix this…. If you or anyone else could help I would be eternally grateful. I have been battling with this since MC was added to SimRacing studio. Many thanks.

[@SimHangerFS]

Hi, I don’t have the H6 so not sure, but my best guess would be the problem lies not with the pitch, but the heave and surge settings. These can be adjusted in the MC settings and Tuning. Perhaps test turning off heave and surge initially?

[@Drmerlin604]

@@SimHangerFSMany thanks for your response Mark. I am pleased to say I finally sorted out MC for my H6. I am thrilled. I was greatly helped by your video! Thank you so much for that. My next issue (completely unrelated to MC) is what seat are you using? It looks really comfortable. Mine is dreadful. I would be most grateful if you could let me have the details if you are pleased with yours. Kindest regards.

[@GunPilot]

Great video Mark...had to do a complete rebuild from scratch (reformatted c drive) and totally forgot how to set up MC again....one question o may please....why change the OFFSET DOWN parameter to 100....mine is left at 00 and MC is rock solid....not disputing what you say to do, but would like to know what the importance is and what is going to be the effect with my MC setup if I were to leave the value at 00...look fwd to your reply mate...and thanks again, you made a complex process seem so simple

[@SimHangerFS]

This was a recommendation from the developer direct.

[@GunPilot]

Do you know what it does?

[@SimHangerFS]

@@GunPilot I can’t remember now, I believe it is related to your position in the cockpit.

[@GunPilot]

Was speaking with Buzz this arvo mate.......reason your saying to enter 100 is because you did not in this video tell people to press ctrl/shift/s when you have moved cloured tracker to where your happy to have it located and orientated....without pressing these 3 keys the position is not saved in the .ini file and next time you jump into mc the tracker will again be sitting up at about head height...putting 100 in .ini file will at least have it showing COR around 1 metre down from you headset....but that value differs for each person so 100 is only an estimation...eg, my saved offset down value is 94.067.....hope this helps you and your followers.....but in no way am I knocking your video, still excellent work mate👍👍👍

[@SimHangerFS]

@@GunPilot Thanks, appreciated.

[@markm75]

At least with an H6 i havent gotten this to work with the witmotion, has anyone else? Basically if you move the rig, the view shifts (no real compensation), its my understanding with the h6 this might not work and a controller type motion compesation may be needed for openxr?

[@hanswurst3811]

why such an extra Box ? you can use just one of the controller as a ref. point. fix the controller to the rig and set it as compensation ref point. much easier and i think its more reliable then the extra box ?! and the box needs a lot of software tweaking i guess .. the controller thing works with one click 100%

[@Soarbywire]

I’ve heard if you are using a Quest you don’t require the motion compensation hardware? With the Quest you can disable motion tracking, and will remain stationary in the flight deck it seems.

[@SimHangerFS]

That is not my experience…you still need MC

[@der60er]

i am a simracer. does it also help with hard and sharp bumps? my hmd is shaking so much with my motion system. its also there because the hmd on head moves. too heavy and leverage (reverb g2)

[@SimHangerFS]

Yes it will help, but not doing sim racing I don’t know to what degree.

[@der60er]

​@@SimHangerFSok. maybe a lighter hmd would be better. formfactor like bigscreen beyond

[@ricardograde5134]

I just can’t make it work…

[@nortonp3983]

I have been waiting a while for an explanation on how to set up the witt , the main thing being the orientation of the unit on the rig . Thanks Mark. - A little tip i use so that i can feel the various key keys without lifting the VR headset, i use a glue gun and dab or draw a line of glue on the keys.

[@Drmerlin604]

I highly recommend the StreamDeck and allocating the relevant keys to that. Way better than messing with a keyboard.

[@Chitown388]

Thank you! I monkeyed with this stuff for a long time, with many trials and errors but still ended up sitting outside the car whenever I made a sharp turn. That was before MC was built into SRS; which I haven't tried yet. This step-by-step will be very useful. Thanks again!

[@lancehendrix1564]

Thank you Mark, you made it simple to do brain surgery .

[@remmet]

Great video! You also mentioned the prior video. Could you please post a link to it? Thanks.

[@SimHangerFS]

The video is linked in the description notes below this video.

[@channelvr1293]

Very informative indeed, just now that my 6DOF parts are arriving. This will be very interesting once my rig has been built. 👍 still a few months to go 😮

[@Drmerlin604]

If you manage to get MC set up with the H6 please, please let me know. I have tried for months without success.

[@Lorian667]

Thanks!

[@redtailpilot]

Struggling for weeks (prior to seeing your video) to get this working properly with 6DOF (PT Actuator). It only partially works in the roll axis. DCS OpenXR. If anyone has it working properly with 6DOF, please share your secrets. I'm just about ready to give up! Another popular KZbinr actually told me that the Witmotion solution is only good with 2 and 3 DOF systems, not 6DOF. Wish I'd known that before purchasing the hardware and PRO SRS subscription 😖

[@benthomas8038]

Hi Thanks again. What controllers are you using please. the Yoke and the throttles

[@SimHangerFS]

Honeycomb Alpha yoke and Bravo TQ

[@benthomas8038]

Thanks. I have a P3 without the SFU Upgrades. I got it second hand. It works fine. I have been watching your channel and see you have the H3. Also you have the Cyber Cover which is good for all safety matters. But i liked the general set up and as i have not done all this from new i didnt know what to look for.

[@VariVR]

Just finished getting my P3's motion compensation set up - followed your guide all the way through and it worked perfectly. Thank you Mark, I very much appreciate your help! (I also used Voice Attack for the MC commands which worked fine).

[@CrazyPilot_from_Belgium]

Thank you for your excellent video once again. Your videos always provide clarity. Finally a good manual to perform motion compensation setup without any worries.

[@ToniJ123]

Hi, great job, I have many questions but trying to ask only the most important ones. 1. Can you make with OpenVR or OpenXR proper motion compensation (6DOF, not only 3DOF which Witmotion sensor provides) with SRS? 2. Or is the SRS limiting also the motion compensation to 3DOF? There isn't in the SRS any option for yaw/traction loss? Or is it needed? Can it be adjusted in OpenXR/VR .ini file and just works? 3. What VR headsets this can be done? Heard that Meta Quest has some challenges because Quest own runtime/tracking overrides afterall? I have Quest 2 and Witmotion but would need to get 6DOF motion compensation because my motion sim, mostly the heave and yaw causing problems at the moment because they aren't compensated at all, tried to use controller as tracking reference for better compensation but with default OpenVR it wasn't working more than 5 secs and I'am not sure was it even then proper 6DOF or just 3DOF

[@k3nl4w]

Motion compensation is even more useful when the motion simulator also simulates the G-force when accelerating or braking, or when turning. All these moments will be simulated by the motion simulator without any camera movement within the game itself.

[@Raceeverything]

Would this work with quest link ?

[@info10805]

Nice video but I cant get my motioncompensation to start...

[@geraldstraney6181]

this product does not work in X-Plane 11

[@oliverf944]

if youre using vive/valve base stations then you can use the software openVR motion compensation. dedicate a hand controller within the open vr app as a tracker to compensate the motion. all very simple within steam home.

[@SimHangerFS]

Yes you can, you can use a tracker (controller) in OpenXR as well.

[@CFO404]

Is it also working with a Quest 3?

[@nashfan1000]

Hi mark, just purchased a d o f h 2 platform. Got it together but waiting for my power supply to come yet from dof anyway I was wondering if you had a video showing how to do your first hook up run and test of your dof platform? I see you have this motion compensation but that will be later down the road for me. But do you have a video showing how to get your dof platform up and running and tested for the very first time ?the dof instructions are very confusing to me, I'm not as tech savvy as most of you simmers are. I usually follow your videos to get things going. thank you.

[@SimHangerFS]

No I haven’t but this may assist. kzbin.info/www/bejne/oZWqepSKf9Nkbbcsi=TQ9K2eqlP9flceTf

[@lorentzlindholm9324]

The handle just under the seat is that the ejection😆… Great video as usual Mark👍🏻

[@SimHangerFS]

😂

[@nashfan1000]

When you are setting up as per your video, should you have motion box turned on? also, should msfs be up and loaded during procedure? thank you.

[@SimHangerFS]

Motion box should turn on once connected. MSFS should not be running.

[@evanphotography5149]

Hi Mark, will you still be able to lean forward and to the sides to have a closer look at the cockpit with the motion compensation is on ?

[@SimHangerFS]

Yes you can.

[@gerryabbott]

Many thanks Mark, for the detailed video. It ticked the last box for me, to go ahead with a DOF kit.

[@Rosenrot213]

Going to take a guess of the overall cost of your setup, 8k+? Mind blowing 🤔

[@deadlydarksun9670]

a great explanation of how to get going with the motion compensation right up to the point of openxr install along with " I use steam which maybe confusing"?? but continued to install open xr rather than openvr. so which should you use if you use steam vr? as i tried open xr got SRS to recognise it all exactly as in your vid but now steam vr wont even start, says a key component missing? is yours still working? thanks

[@SimHangerFS]

I use openXR, steam VR is an OpenXR varient. You don't need OpenVR

[@deadlydarksun9670]

@@SimHangerFS ok thanks, wonder why steam vr threw its rattle out of the pram then lol

[@H.Despres]

Invaluable video Sir!!!! Well done and Thank you. I’ve been using this for about two years now and learned even more tricks and information. Thank You Again.😊

[@socatatrin]

Hello Mark, I have followed the same exact steps like you did in the video, however the virtual tracker symbol does not appear in the steam VR tab. I can only see the headset and the controller, but not the virtual tracker. Any ideas?

[@SimHangerFS]

Check under SteamVR settings - manage add-ons under start up / shutdown and under OpenXR - motion comp layer is set to on.

[@socatatrin]

@@SimHangerFS Yeah, I did that, but it still doesn't work.. I will reinstall everything, maybe I missed something.

[@Likes2fish-rk1kf]

Great video. Maybe you can help me. for the last nine months I have been fighting with loss of motion compensation. It mostly effects msfs 2020 but can effect population one and rarely but it has happened in the mixed reality portal. I have the reverb g2. I have two fairly new g2's so I have swapped cables , headsets, controllers ect. I have the dof reality h6. I also have a large instrument panel. It does it in x-plane 12 too. I move completely out of the plane and sometimes looking backwards.For a year I did not have this problem with the same large instrument panel. I've tried clearing out environment cache which sometimes seems to help with population one. I have put a blanket on the instrument panel and that worked for awhile but not anymore. I could put printer paper taped over some of the instruments and that worked but not anymore. I tried the witmotion sensor and it did not help in the past but I tried it again and seems to help in the last two days. FYI the witmotion seems to move my view more instead of less so I don't like using it but for now it seems to help. In the last nine months I have built a new computer and reusing my progressively

[@johnmann7o2]

The problem I find with most motion sims is that when the unit pitches or rolls, it moves your head, instead of the seat, which isn't ideal for g force effect. However, on something like the yaw2, it actually moves your butt more than your head, giving a better g force effect, also, motion compensation isn't really needed in moderate settings.

[@Edge6D]

Motion compensation is even more required on a 6DOF hexapod with heave. How about OpenVR MC, has Open XR MC now become standard ?

[@onslope]

That is a great tutorial. Been into VR and motion compensation for many years. The DOF Reality motion rigs are top quality. Quiet and robust rigs for a good price. Well done!

[@tmellemat9147]

Thank you so much Mark, have motion compensation now working good, the change in the ini file to change the keyboard shortcuts solved my problem, every time when activated it put me outside the plane😅

[@Chitown388]

btw, why did you set the seat height to 1mm?

[@SimHangerFS]

On devs recommendation.

[@ricardograde5134]

It says, it’s calibrated… but am still getting out side of the airplane… just don’t understand

[@SimHangerFS]

Check steam app settings as mentioned in the video

[@ricardograde5134]

@@SimHangerFS hello Mark. I don’t have MSFS via steam… but I did every steps of your video.

[@steveboyer5109]

Finally! A video that shows exactly what to do to make this motion compensation sensor work properly! Thank you!

[@ZaphodBeeblebrox2nd]

Awesome Video. Thank you very much. Helped me alot.

[@kevinbrook7033]

Superb video Mark! I think a motion platform is something I definitely want to look into in the future.

[@rontaumelscheibe]

Many thanks Mark for this detailed information

[@bigbangerz5856]

Are you flying a jet with a yoke, Mark! I'm calling in the flightsim morality police haha. Great video as always really useful to see the motion compensation working as it should.

[@SimHangerFS]

It’s a special mod 🤣

[@evanphotography5149]

Do you have to use VR steam for the compensation to work ? I use openXR wit my G2 VR. Thanks

[@SimHangerFS]

No I use OpenXR, which is what I demo in the video. If using Steam you can still use OpenXR.

[@evanphotography5149]

Ok, strange. I can't get it to work. I don't get to see the color arrows then looking downwards. Everything seems to be setup right but it's not compensating for the motion. I'm using it with the premium trial SRS now. @@SimHangerFS

[@DanneJensen]

@@evanphotography5149 did you manage to get it to work? i got the premium trial also and i cant for the life of me get it to work.. what a hassle this is

[@benthomas8038]

What are you using to hold the Keyboard and mouse please, and the joystick on one side and throttle on the other please?

[@SimHangerFS]

NLR keyboard & mouse stand nextlevelracing.com/products/free-standing-keyboard-mouse-stand/

[@benthomas8038]

Hi Thanks. I have a P3 without the SFUs. Can i just upgrade the two front motors and not the Yaw motor

[@SimHangerFS]

@@benthomas8038 check with DOF. I don’t believe that is possible but could be wrong.

[@Ulster-Fry-777]

your timing is perfect. i got my rig last week and was struggling with MC. thats it all fixed now. many thanks. any luck with getting the HF8 HAPTIC to work with SRS ?

[@SimHangerFS]

No I run it with the NLR app.

[@funwithcars4982]

Any issue with the witmotion sensor disconnecting? I’ve had it running for a couple of months when I received my H2 and was ok to begin with, but now It just stops responding and I have to power off and on. I’ll Do some more digging , wonder if it’s something to do with power management.

[@SimHangerFS]

No issues so far at all.

[@jmskelly59]

Thank you very much for this very helpful guide! I have a similar setup and there's a few things I hadn't done. Much appreciated!

[@MaxPower69]

❤

[@LWJCarroll]

The Quest 3 with its MR will be interesting to see being able to see the controls in your setup. Laurie NZ. 😊😊

[@SimHangerFS]

Yes very much so 👍

[@likes2fly]

I have the h6 and reverb g2. I have been chasing down problems with motion compensation for two years. It comes and goes, I had a small update with msfs couple of weeks ago and its back. I have the wit module but that does not help my problem. I'm moved completely out of the play at different angles. I do have a large dash in front of me which dosn't help my problem I'm sure. I have searched the web for solutions and tried some of my own, some help but it keeps coming back eventually. I have tried the new srs and msfs beta but that doesn't help. Have you had these issues?

[@SimHangerFS]

No, the only time I get this is if steam turns off the SRS or MC option following an update. (Yes you need this even if you dont use steam.)

[@likes2fly]

just to be clear my problem is not the g's moving my head and body. I move completely out of the plane and sometimes backwards@@SimHangerFS

[@SimHangerFS]

@@likes2fly have you updated recently. You should.

[@likes2fly]

@@SimHangerFS updated what. I have the latest windows update, I deleted the mixed reality portal and installed it, I bought two new hp reverb headsets late last year. I can't find any updates for them.I've updated SRS.

[@likes2fly]

@@SimHangerFS Everything is up to date. I bought two new headsets late last year.

[@Glider324]

It still seems wrong to me. I am reluctant to spend money and time on an amusement park ride. When banking your body is still moving into the turn which for an aircraft seems completely illogical. Could you please try to simulate body acceleration as best you can?

[@MaxPower69]

SRS has a very detailed set of parameters that replicates each axis in terms of movement & how quick each axis reacts. These parameters covers not only roll pitch & yaw but also surge acceleration & surge deceleration as well as heave to name but a few. The level of adjustment is mind blowing with dozens of sliders that must be adjusted in level of movement as well as speed. This must be done for each aircraft to achieve a highly accurate experience for different aircraft, so yes what you are wanting is definitely achievable so it is anything but an amusement park ride. Mark was showing how to do the basic setup for motion compensation & as usual has done a fantastic job explaining it in layman’s terms. Thanks mark & great job, are you.planing on doing a detailed video on SRS tuning setup? I have only done 1 setup so far for the kodiak 100 but I’m still struggling with some aspects.

[@SimHangerFS]

The premise for the video was motion compensation and the uncoordinated turns etc were shown by design to highlight the amount of head movement with and without mc. In SRS software you can adjust most parameters to suit your requirements.

[@nigelellis4793]

Looks like you have your H3 set up to work as a car. When you turn in an airplane the rig should tilt back to simulate the g you feel in a real airplane in coordinated turn. The way you have it would be simulating a very uncoordinated turn with a big slip or skid. I believe there is an option in the H3 software to fix that.

[@SimHangerFS]

The movement of the rig in a turn is partially governed by the rudder (yaw) input. In this video my turns are uncoordinated (no rudder input) deliberately to highlight the head movement etc.

[@MaxPower69]

Where is the setting for car vs aircraft

[@SimHangerFS]

@@MaxPower69 subject to what sim you select.

[@Dennisboetes]

Looks great, I do wonder how accurate the feeling is. I fly in real life and when I pull into a bank, I don't feel that I'm beeing pushed to the left. I get pushed into the chair because of centrifugal forces. However, the platform tilts to the left, giving your body the sensation that you are beeing pushed to the left. Instead I would expect the platform to tilt backards to simulate the Gforce (pushing you back into the chair). This left/right feeling occurs when you are yawing the plane left or right, not banking it. Seems counterintuitive. Same goes for pitching up or down. The moment you push forward, your body will experience negative G. But the platform seems to 'pitch' too late to simulate that force. It seems that its following the movement of the plane in stead of simulating the actual forces. What are your thoughts Mark?

[@Dennisboetes]

I just saw the @Glider324 post. We share the same concern. But the question is already answered

[@buzzteebear7862]

Congratulations on a great video on setting up oxrmc with SRS! I really like it and feel honoured by the shoutout! Just three little annotations, if I may: 1. Activating mc for the first time in a session is triggering automatic implicit calibration of the tracker (unless it was explicitly calibrated before). So if you're looking straight forward (with motion rig leveled and neutral) when activating, you could save the keystroke for calibration afterwards. 2. Once you've set seated height to 1mm (as rightfully recommended), the surge and sway factor is literally only affecting motion compensation in sub-millimeter scale for pitch/roll rotation < 45°. 3. The simracingstudio tracker addon, you mentioned towards the end of the video, is only required for using oVrmc and does nothing when using oxrmc.