self righting object

Questions & Answers
1

Working on getting an object to self right, firstly the object is rotated to a random Vector3, then it should self right.

function Selfright () {
    var pointUp = Quaternion.RotateTowards(gameObject.transform.rotation, upobj.transform.rotation, Time.deltaTime * 40);
    gameObject.transform.rotation = pointUp;
    }

Unfortunately this will make the object point in the Z direction of the upobj, all I really need to do is make the object self right. (point up over a duration of time)

3

You could use physics to emulate this “inflatable punching bag” behaviour - but instead of applying the weight to the bottom, you could apply a constant up force to the top with AddForceAtPosition. The script below does exactly this effect with a capsule with rigidbody:

var force: float = 5; // up force
var offset: float = 1; // offset from object's position (up direction)

function FixedUpdate(){
  var point = transform.TransformPoint(offset * Vector3.up); 
  rigidbody.AddForceAtPosition(force * Vector3.up, point);
}

You can tweak the effect with offset: the higher it is, the faster the object will self right. You can also increase the Drag factor in the rigidbody to make it stop swinging in less time.

2

I’m currently not on my PC, so I can’t test if this works, but you should try this:

function Selfright () {
    var pointUp = Quaternion.RotateTowards(gameObject.transform.rotation, Quaternion.LookRotation(upobj.transform.up), Time.deltaTime * 40);
    gameObject.transform.rotation = pointUp;
}

If you don’t want to set a custom up direction you could replace it with Quaternion.LookRotation(Vector3.up)