How to rotate a rigidbody with a Pid controller

Asked May 30 '20 at 23:02

Active May 31 '20 at 10:09

Viewed 819 times

I would like someone to describe me how to use a PID controller to rotate a rigidbody with AddTorque to a specific position. (like a spacecraft that rotates the Y axis of rotation towards Camera.forward for example). Can anyone show it to me with a script?

Actually I already use this script to rotate with AddTorque but the object almost never stops at the precise point.

Vector3 camForward = Camera.main.transform.forward;
Vector3 rbForward = rb.transform.forward;
Vector3 torqueY = Vector3.Project(torque, Vector3.up);
Vector3 torque = Vector3.Cross(camForward, rbForward);
rb.AddTorque(torque);
rb.AddTorque(-rb.angularVelocity);

edited May 31 '20 at 10:09

asked May 30 '20 at 23:02

Daniele Pappalardo

I show how to apply a torque to reach a specific orientation in this answer - it's not specifically a PID approach, but you may be able to adapt it to your needs. – DMGregory May 30 '20 at 23:37
Thanks for the reply. Actually I already use this script to rotate (I posted the code in the answer), but the object never stops at the precise point, for this reason I was recommended a PID. Searching I also found a PID that looks good (it is used in a video to rotate an object), if i publish it could you show me how to set it to make it work for the purpose? – Daniele Pappalardo May 31 '20 at 10:09

How to rotate a rigidbody with a Pid controller

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