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spyro
Up and Coming
July 31, 2015

Cross-Post: Positional tracker offset in UE4-Plugin

Hi there,

sorry for the cross-post, don't know if this is affecting Epic or Oculus itself:
https://answers.unrealengine.com/questi ... right.html

Thank you,
spyro
    This topic has been closed for replies.

    5 replies

    jumbli
    Up and Coming
    August 3, 2015
    I have the same problem too. I'm using 4.8.3 on Unreal Engine - Not the Oculus GitHub version. The problem goes away for a while if you stop and start the Oculus runtime service, so it looks like a problem on the Oculus side to me.

    This is causing me problems because I'm showing a grid when the user gets close to exiting the tracking boundary. My approach isn't as accurate as it should be because the camera position is being reported incorrectly.

    Could someone at Oculus investigate please?
    Developer of Dimensional , The Relentless , Breath Tech , Jigsaw 360 View my dev blog at JumbliVR.com
    cybereality
    Inspiring
    August 3, 2015
    It may be the offset that is saved in the profile (from Oculus Config Util). Sometimes this gets messed up for whatever reason and needs to be redone. You just need to delete this file.

    C:\Users\YOUR_NAME\AppData\Local\Oculus\ProfileDB.json


    Then open the Config Util and create a new profile.
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    jumbli
    Up and Coming
    August 4, 2015
    Thanks for the reply.

    I'd prefer not to loose all the profiles (IPD measurements) of the people I use for testing. Should I be able to just delete the offending line? Is it "CenteredFromWorld" / "CenteredFromWorld2" (just a guess)?

    Am I safe to assume someone has this on a list of issues to investigate or should I not really be relying on the accuracy of the tracking camera position that's reported?
    Developer of Dimensional , The Relentless , Breath Tech , Jigsaw 360 View my dev blog at JumbliVR.com
    cybereality
    Inspiring
    August 4, 2015
    I don't believe you can just delete a single line in the file. Probably better to create a new profile using the tool, make sure that it's calibrated in the correct center position, then copy those values to the old profile.
    AMD Ryzen 7 1800X | MSI X370 Titanium | G.Skill 16GB DDR4 3200 | EVGA SuperNOVA 1000 | Corsair Hydro H110i Gigabyte RX Vega 64 x2 | Samsung 960 Evo M.2 500GB | Seagate FireCuda SSHD 2TB | Phanteks ENTHOO EVOLV
    spyroAuthor
    Up and Coming
    August 8, 2015
    "cybereality" wrote:
    It may be the offset that is saved in the profile (from Oculus Config Util). Sometimes this gets messed up for whatever reason and needs to be redone. You just need to delete this file.

    C:\Users\YOUR_NAME\AppData\Local\Oculus\ProfileDB.json


    Then open the Config Util and create a new profile.


    Hmm, I cannot regularly delete the users profile as a workaround for a runtime bug (no offense) . Is there any chance, that this bug gets fixed until release?
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