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Bug ScreenToWorldPoint gives wrong result if Scene view is open

Discussion in 'Editor & General Support' started by castor76, Apr 7, 2021.

  1. castor76

    castor76

    Joined:
    Dec 5, 2011
    Posts:
    2,517
    ScreenToWorldPoint seems to give wrong result if Scene view is open.

    The exactly the same code like :

    mainCam.ScreenToWorldPoint(screenPos);

    gives completely different values if my Editor Scene view is showing or not.

    Unity 2021.1f1 2DRenderer Orthographic camera
     
    castor76, Apr 7, 2021
    #1

  2. Shinci

    Shinci

    Joined:
    Jul 21, 2019
    Posts:
    1
    I was checking this problem here. I noticed that when we made a log of the current camera, the results were different.
    upload_2021-9-24_0-10-2.png

    upload_2021-9-24_0-8-32.png

    The solution that I found was to check if my camera is the current camera else the script ignores the call.
    upload_2021-9-24_0-14-36.png

    But I still don't understand why this works because we specify the camera to call the ScreenToWorldPoint. It looks like Unity uses the current camera values to it.
    upload_2021-9-24_0-23-54.png
     
    Shinci, Sep 24, 2021
    #2

  3. castor76

    castor76

    Joined:
    Dec 5, 2011
    Posts:
    2,517
    Sounds like my problem. Yeah, I also specify the exact camera to use to call ScreenToWorldPoint. But instead, it seems like it may be using the scene camera no matter what if I have the scene window open and visible.

    Very strange and very annoying!

    I tried to create small repro case, but I failed reproducing it in my trimmed project.

    But still, this should never happen?
     
    castor76, Sep 24, 2021
    #3