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muella91

HTC Vive Tracker switches orientation

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Hello,

 

I realized that the orientation of my HTC Vive Tracker coordinate system is not like the Specification sheet defines it.

The red arrows define the orientation that I measured. On top of that, sometimes the orientation seems to switch. 

image.png.a155b44041c799a680c53f2943565d3d.png

 

@Jad @chengnay

 

 

 

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@muella91, May I please know which engine you are using to develop your application?

Unity? Unreal? Which SteamVR Plugin version?

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@muella91 - This may be due to SteamVR's role system. Can you please change the role of the tracker in question from "held in hand" to "waist" and then retest to see if that modifies the orientation issue? That would isolate it to the roll binding system.

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Thanks for your answers.

You were right, the orientation depends on the assigned roles. I checked the orientations of different roles. All roles, except the "hold in hand" role have the same orientation. Furthermore, the "hold in hand" role seems to switch its orientation from time to time... 

 

image.png.d04904cebe2971e0818af34b4141877b.png

 

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On 4/3/2020 at 10:45 AM, muella91 said:

Thanks for your answers.

You were right, the orientation depends on the assigned roles. I checked the orientations of different roles. All roles, except the "hold in hand" role have the same orientation. Furthermore, the "hold in hand" role seems to switch its orientation from time to time... 

@muella91 Thanks let us know if you continue to experience any issues. 

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The problem was, whenever I launched these games the tracked bat would be 90 degrees off on orientation, this was obviously an issue as if you were holding the bat up straight with the handle pointing towards the floor it would look like the bat was horizontal in front of you.

I searched for an answer for this and had trouble finding a fix, after a while messing around I found out there were settings for the trackers but not outside the headset in the windows SteamVR app where things are normally stored but inside of the SteamVR menu once you have the headset on.  After altering these and setting the tracker to be on my waist rather than in my hand it fixed my issue, if you have found this post and have this issue I shot a quick video of how you change this and what fixed it for me.

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@Bethany28 If a short video is too troublesome, you could also share screeshots on where to find those settings, thanks!

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