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Question Input Recorder and OpenXR

Discussion in 'VR' started by wuenscher, Aug 12, 2021.

  1. wuenscher

    wuenscher

    Joined:
    Mar 17, 2020
    Posts:
    3
    I try to use the Input Recorder with openxr. The results are very inconsistent when the recordings will be played and when not. Is it in a buggy state or is there a (not documented) way how to use it properly?

    Thanks in advance!

    Edit: I tried it with quest 2 on oculus link and rift s in Unity 2020.3.14.
     
    wuenscher, Aug 12, 2021
    #1

  2. wuenscher

    wuenscher

    Joined:
    Mar 17, 2020
    Posts:
    3
    *bump*
     
    wuenscher, Aug 23, 2021
    #2

  3. thep3000

    thep3000

    Unity Technologies

    Joined:
    Aug 9, 2013
    Posts:
    398
    I haven't used InputRecorder with XR, but I have used InputEventTrace successfully which InputRecorder is based on.

    Recording example (to byte array):

    Code (CSharp):
    1. // declare locals
    2. private InputEventTrace inputEventTrace = new InputEventTrace();
    3.  
    4. // later... enable recording
    5. inputEventTrace.Enable()
    6.  
    7. // later... save to byte array
    8. MemoryStream ms = new MemoryStream();
    9. inputEventTrace.WriteTo(ms);
    10. var inputSystemBytes = ms.ToArray();
    11. inputEventTrace.Clear();

    Playback example (from byte array):

    Code (CSharp):
    1. // declare locals
    2. public InputEventTrace inputEventTrace = new InputEventTrace();
    3. public InputEventTrace.ReplayController replay = null;
    4.  
    5. // later... load from byte array and play back
    6. var ms = new MemoryStream(message.Value.Bytes, offset, msg.ByteCount);
    7. inputEventTrace.ReadFrom(ms);
    8.  
    9. if (replay == null)
    10. {
    11.     replay = inputEventTrace.Replay().WithAllDevicesMappedToNewInstances();
    12. }
    13.                    
    14. replay.Rewind();
    15. replay.PlayAllEvents();
    16.                    
    17. inputEventTrace.Clear();
     
    thep3000, Aug 26, 2021
    #3

  4. wuenscher

    wuenscher

    Joined:
    Mar 17, 2020
    Posts:
    3
    Hello thep3000, thank your for your response. Recording is working and replay during the same Playmode. But if i return to editor and go to playmode again. Then Replay is not working anymore. I save it to a file and load it... and it plays.. but controllers are standing still.

    The Sample is pretty much identical to your code but uses

    Code (CSharp):
    1.  
    2.             // Start replay.
    3.             if (m_SimulateOriginalTimingOnReplay)
    4.                 m_ReplayController.PlayAllEventsAccordingToTimestamps();
    5.             else
    6.                 m_ReplayController.PlayAllFramesOneByOne();
    7.  
    8.             m_ChangeEvent?.Invoke(Change.ReplayStarted);
    instead of PlayAllEvents

    but I guess it should work the same way, right?
     
    Last edited: Aug 26, 2021
    wuenscher, Aug 26, 2021
    #4

  5. thep3000

    thep3000

    Unity Technologies

    Joined:
    Aug 9, 2013
    Posts:
    398
    thep3000, Aug 26, 2021
    #5

  6. Vailshnast

    Vailshnast

    Joined:
    Aug 1, 2022
    Posts:
    1
    @thep3000 Why did unity removed input recorder in new versions of input system?
     
    Vailshnast, Jun 2, 2023
    #6

  7. npatsiouras_ntua

    npatsiouras_ntua

    Joined:
    Feb 11, 2023
    Posts:
    12
    npatsiouras_ntua, Jul 28, 2023
    #7