Spheres won't stop rolling

Unity Engine
, , , ,
1

Hello, I’m having trouble setting up the physics for spheres. They will bounce off a wall, then keep rolling very slowly forever until they hit something again.

Is there any way to fix this without adding scripts to all my spheres? Or should I just not use them?

It doesn’t seem to matter what I set the friction or angular drag to. Either I have the mass so high it just lands and doesn’t roll, or it rolls forever. There’s no in between.

2

do you have friction on them and the ground?

3

It still rolls back on me even when both are set to very high friction. Even hitting it with objects when it’s on its way back won’t stop it.

4

then it sounds like you have a script giving it velocity

5

In the sphere’s physics material if you set bounce to zero and ‘Bounce Combine’ to minimum then the sphere will stop when it hits a wall, but only if it’s not on a slope. If the sphere is on a slope then gravity will always roll it down the slope.

Somebody recently had an issue trying to simulate a golf ball and to prevent the ball from rolling down a slope I had to cancel out gravity like so:

using UnityEngine;
public class GolfBall : MonoBehaviour // simulates a golf ball on grass. Unlike friction or drag this will bring the ball to a gradual stop even on slopes
{
    Rigidbody rb;
    void Start()
    {
        rb=GetComponent<Rigidbody>();
    }

	void OnCollisionStay(Collision c)
	{
		rb.angularDrag=1;
		rb.AddForce(-Physics.gravity-rb.velocity*0.9f); // cancel out gravity and gradually bring the ball to a stop
	}
}