How does Unity calculate animator's center of mass(animator.bodyPosition)?

Unity Engine
1

As the Scripting API said, Animator.bodyPosition is:
The position of the body center of mass.
The position is in worldspace. You should only set this value from within an OnAnimatorIK() function call.

I have a character model with a Z-axis moving animation, when I tried to log bodyPosition, I meet some problems.

Here are the settings and the result:

There are some questions:

  1. When get in OnAnimatorMove(), the bodyPosition is not the same, and not in worldspace, why?
  2. The Animator.Root T curve is the animator.bodyPosition, and the Animator.Root Q curve is the animator.bodyRotation?
  3. Why the bodyPosition is not correct at first frame of the game?

Soā€¦does anyone knows what is the real magic inside the animator.bodyPosition?

AND how to calculate the root motion by center of mass and body orientation?

1 Like
2

I wish somebody had answered, because thatā€™s my question too.

1 Like
3

Helloļ¼Have you solved the problemļ¼ŸI have been puzzled by this question for a long timeā€¦