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Question Additive animations on top of IK

Discussion in 'Animation' started by Somnesis, Aug 2, 2022.

  1. Somnesis

    Somnesis

    Joined:
    Feb 27, 2020
    Posts:
    22
    Technically this should work but it doesn't seem to.

    My setup:
    1. Base layer 0 (with IK)
    2. Gestures layer 1 (additive)
    3. OnAnimatorIK() on layer 0, I tell it to do a look at using SetLookAtPosition and SetLookAtWeight
    4. On the gesture layer I play a gesture

    My expectation is that since the gesture layer exists *above* the base layer and is *additive*, playing an animation there (eg. a nod) should add that animation to the look at that's going on in layer 0. However, it seems like if I have the IK lookat going on in layer 0, it nullifies the additive nod that I play on layer 1 (at lease the effect of that nod on the bones that the look at is using).

    Is this a bug in Mecanim? Or am I doing something wrong? Any way to work around this or do what I'm after in a different way?

    Using Unity 2022.1.

    Thanks!