Forum Discussion

🚨 This forum is archived and read-only. To submit a forum post, please visit our new Developer Forum. 🚨
spyro's avatar
spyro
Expert Protege
10 years ago

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

5 Replies

Replies have been turned off for this discussion
  • 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?
  • 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.
  • 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?
  • 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.
  • spyro's avatar
    spyro
    Expert Protege
    "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?