How to slow down transform.LookAt

Questions & Answers
1

Im trying to make the camera move with the mouse pointer in my game using:

public class camera : MonoBehaviour {
	public static Vector3 Point;
	public float zDistance;

	void FixedUpdate(){
		var mousePos = Input.mousePosition;
		Point=camera.ScreenToWorldPoint(new Vector3(mousePos.x,mousePos.y,zDistance));
		transform.LookAt(Point);
	}
}v

It works but the screen moves really fast, too fast to be able to play properly. Is there any way to slow it down?

2

From my answer to this question: you should use Quaternion.FromToRotation and then use Quaternion.Lerp. Something like this (This code should be in FixedUpdate for smooth results):

 Vector3 direction = Point - transform.position;
Quaternion toRotation = Quaternion.FromToRotation(transform.forward, direction);
transform.rotation = Quaternion.Lerp(transform.rotation, toRotation, speed * Time.time);

You can set the speed variable to how slow or fast you want the rotation to be. You can look at the result here (although there the y axis of the object is pointing towards a point).

3

I know this post is super old, but I wanted to amend @Evil-Tak 's post:

If Quaternion.FromToRotation() doesn’t work, try using Quaternion.LookRotation() in it’s place (slightly different params).

5

Vector3 relativePos = focus.position - transform.position;
Quaternion toRotation = Quaternion.LookRotation(relativePos);
transform.rotation = Quaternion.Lerp( transform.rotation, toRotation, 1 * Time.deltaTime );

7

Everyone else is already correctly mentioning how to modify transform.rotation, but personally I find Quaternions to be really confusing so my preferred method for rotating is by directly modifying transform.forward

You just calculate the direction vector with (targetPosition - transform.position).normalized

You can combine it with Vector3.Lerp to get a nice smooth rotation SMOOTH with LERP! (Move, Rotate, Float) shorts - Code Monkey

4

Adding on, when I tried the code above from @EvilTak, it instantly turned. I changed Time.timeto Time.deltaTime to resolve this.

6

Combining the above answers worked for me:

Vector3 direction = Point - transform.position;
Quaternion toRotation = Quaternion.LookRotation(direction, transform.up);
trasnform.rotation = Quaternion.Lerp(transform.rotation, toRotation, speed * Time.deltaTime);

,Combining the above answers worked for me:

Vector3 direction = Point - transform.position;
Quaternion toRotation = Quaternion.LookRotation(direction, transform.up);
trasnform.rotation = Quaternion.Lerp(transform.rotation, toRotation, speed * Time.deltaTime);