Community

Question

Is there a way to set the origin of the local coordinate system of a rigidbody equal to the centerOfMass automatically calculated by the Unity engine for a MeshCollider or complex of primitives?

I don't want to arbitrarily set the centerOfMass, since I want to use the auto-calculated one, but I want to apply rotational forces relative to the centerOfMass.

I'm using addRelativeTorque to apply rotational forces.

Thank you for your time, please ask me to clarify if necessary.

Answer 1

0

You could add an intermediate transform to act as an offsetter. E.g.

var offsetter = GameObject(transform.name + "Offsetter");
offsetter.transform.position = transform.TransformPoint(rigidbody.centerOfMass);
offsetter.transform.rotation = transform.rotation;
offsetter.transform.parent = transform.parent;
transform.parent = offsetter.transform;

answered Oct 28 '10 at 05:25 AM

Max Kaufmann
573 ● 10 ● 12 ● 21

Thanks! That looks like just what the coder ordered.

Oct 28 '10 at 01:32 PM fzzr

(comments are locked)

Community

centerOfMass and local coordinate origin

Follow this question

Welcome to Unity Answers

Unity Answers tutorial video!

Related Questions