Eject Overlapping Bodies Without velocity

Questions & Answers
1

I’m working on a ragdoll system when a character dies.

If I turn off a rigidbody’s isKinematic property when it’s already penetrating geo, the body is ejected with velocity from the geo. Obviously, I do want the collision to be solved, but I’d rather the rigidbody be placed nicely outside of the geo rather than flinging it out. Can this be accomplished?

2

Do you mean “turn off isKinematic”? A rigidbody ignore physics when isKinematic is true, and return to physics control when it’s set to false.

Anyway, the problem you’ve mentioned is probably the “penetration penalty force”, a repulsion force applied to the penetrating rigidbody.

You could use a simple script to limit the rigidbody velocity:

var limVel = 0.1;

function FixedUpdate () {
  if (!rigidbody.isKinematic){
    rigidbody.velocity = Vector3.ClampMagnitude(rigidbody.velocity, limVel);
  }
}

You can set limVel to some high value (say, 100) to disable the velocity limit, if you want to restore regular behaviour.

3

Haven’t tried it, but maybe you could catch this with OnCollisionExit()?