Hello,
Is there any way to adjust the evaluation or execution order of Parent Constraints? I have a character that modifies IK through scripting after the Update loop, and Parent Constraints ignores the updated transforms after IK in Unity 2019+. It seems to only evaluate the Animator stream. In 2018 LTS the order is correct and applies Parent Constraints after my IK. Is there any way to correct this in 2019.3 ?
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Hi,
Chances are you are referring to the following issue we addressed a while ago:
https://issuetracker.unity3d.com/issues/sampling-the-position-of-the-gameobject-with-update-function-does-not-yield-the-correct-position
The issue was that constraints were applied after the LateUpdate callback and thus there was no way to run game logic to get the end result of animation (animation + constraints).
If you want to modify the animator IK before the constraints have been applied, you can use the OnAnimatorIK callback instead.
You can refer to the following for a detailed explanation of the execution order in Unity:
https://docs.unity3d.com/Manual/ExecutionOrder.html