Question by NightIT · Mar 01, 2019 at 03:13 AM · c#position vector3 direction distance

Dot Product not equals 1

I rotate my character to face at my target using this script:

 public class Rotate : MonoBehaviour
 {
     public Transform target;
     public Vector3 distance;
     private Quaternion rotateQuaternion;
     public float dotRotate;
 
     // Update is called once per frame
     void Update()
     {
         RotateToTarget();
     }
     private void RotateToTarget()
     {
         distance = target.position - transform.position;
         distance.y = 0;
         rotateQuaternion = Quaternion.LookRotation(distance, Vector3.up);
         dotRotate = Vector3.Dot(distance.normalized, transform.forward);
         Debug.Log(dotRotate);
         transform.rotation = Quaternion.RotateTowards(transform.rotation, rotateQuaternion, 120f * Time.deltaTime);
         if (dotRotate >= 1f)// Sometime dot's value cannot equal 1
         {
             Debug.Log("Done Rotating");
         }
     }
 }

this is the final result: alt text