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Question A strange case of "cannot find root motion transform"

Discussion in 'Animation' started by bitinn, Mar 11, 2021.

  1. bitinn

    bitinn

    Joined:
    Aug 20, 2016
    Posts:
    961
    Hi all,

    We are facing a very very strange case of generic animation doesn't appear to match rigged model.

    Both the model fbx and the animation fbx have root transform, as we verified via Maya and Blender, but in Unity, it randomly fails on import, see following screenshots:

    animation-01.png
    animation-02.png

    just by duplicating the fbx and re-importing them, the animation avatar will somehow become valid again, and we can play them in inspector and in-game without issues.

    The problem is the randomness, both me and my colleague are able to reproduce the error randomly, with the same files. This confuses the hell out of us, because it's like a phantom issue that appear and disappear in front of our face.

    Same works in Maya and in Unreal, no problem whatsoever.

    Should I create a bug ticket to unity? Anyone have good guess on why?
     
    javadgholami1369 likes this.
  2. javadgholami1369

    javadgholami1369

    Joined:
    Jun 1, 2020
    Posts:
    1
    really how to fix this annoying bug
     
  3. Xelnath

    Xelnath

    Joined:
    Jan 31, 2015
    Posts:
    402
    Running into this too...
     
  4. Yetinator

    Yetinator

    Joined:
    Sep 8, 2018
    Posts:
    1
    In export settings in Blender I changed "Armature FBXNode type" to Root (that's Armature section). Worked for me, but I don't understand how