Rotating an object slowly.

Questions & Answers
1

I’m trying to have an object rotate towards the mouse pointer on click.
I managed to get that working but the object rotates instantly and i can’t quite figure out how i can make it rotate slowly…
This is my code.

using UnityEngine;
using System.Collections;

public class mouselook : MonoBehaviour {
Vector3 direction;
Vector3 hitpoint;
RaycastHit hit;
float angleDeg;
float angleRad;
// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {

	if (Input.GetMouseButtonDown(0) )
	{
	    Ray ray = (Camera.main.ScreenPointToRay(Input.mousePosition));
		Physics.Raycast(ray, out hit);
		
		hitpoint = hit.point;
		
		direction = hitpoint - this.transform.position; 
		Vector3 relative = transform.InverseTransformDirection(direction);
		
		angleRad = Mathf.Atan2(relative.x,relative.z);
		angleDeg = angleRad * Mathf.Rad2Deg;
		
		
	    transform.Rotate(Vector3.up,angleDeg);
	
	}
	
}

}

3

Got it working with Slerp function.
Here is the code if it helps anyone :slight_smile:

using UnityEngine;

using System.Collections;

public class mouselook : MonoBehaviour

{

Vector3 direction;
Vector3 hitpoint;
RaycastHit hit;
float speed =5f;
Vector3 target;
Quaternion targetRotation;
// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {

	if (Input.GetMouseButtonDown(0) || Input.GetMouseButtonDown(1))
	{
	    Ray ray = (Camera.main.ScreenPointToRay(Input.mousePosition));
		Physics.Raycast(ray, out hit);
		
		hitpoint = hit.point;
		
		
			
			targetRotation = Quaternion.LookRotation(hitpoint - transform.position);
	
	
	}
	transform.rotation = Quaternion.Serp(transform.rotation, targetRotation, speed * Time.deltaTime);			
}

}

2

Do not rotate the fill amount of “angleDeg”. Instead rotate a constant (smaller) degree step every frame/update and then check if you have arrived at the desired angle. Once you have arrived or are near enough (difference smaller then the step size) stop rotating.