Quaternion.SetFromToRotation

Description

Creates a rotation which rotates from fromDirection to toDirection.

Use this to create a rotation which starts at the first Vector (fromDirection) and rotates to the second Vector (toDirection). These Vectors must be set up in a script.

#pragma strict
//This example shows how the rotation works between two GameObjects. Attach this to a GameObject.
//Make sure to assign the GameObject you would like your GameObject to rotate towards in the Inspector
public class SetFromToRotationExample extends MonoBehaviour {
	public var m_NextPoint: Transform;
	var m_MyQuaternion: Quaternion;
	var m_Speed: float = 1.0f;
	function Start() {
		m_MyQuaternion = new Quaternion();
	}
	function Update() {
		//Set the Quaternion rotation from the GameObject's position to the next GameObject's position
		m_MyQuaternion.SetFromToRotation(transform.position, m_NextPoint.position);
		//Move the GameObject towards the second GameObject
		transform.position = Vector3.Lerp(transform.position, m_NextPoint.position, m_Speed * Time.deltaTime);
		//Rotate the GameObject towards the second GameObject
		transform.rotation = m_MyQuaternion * transform.rotation;
	}
}

//This example shows how the rotation works between two GameObjects. Attach this to a GameObject.
//Make sure to assign the GameObject you would like your GameObject to rotate towards in the Inspector

using UnityEngine;

public class SetFromToRotationExample : MonoBehaviour
{
    //This is the Transform of the second GameObject
    public Transform m_NextPoint;
    Quaternion m_MyQuaternion;
    float m_Speed = 1.0f;

    void Start()
    {
        m_MyQuaternion = new Quaternion();
    }

    void Update()
    {
        //Set the Quaternion rotation from the GameObject's position to the next GameObject's position
        m_MyQuaternion.SetFromToRotation(transform.position, m_NextPoint.position);
        //Move the GameObject towards the second GameObject
        transform.position = Vector3.Lerp(transform.position, m_NextPoint.position, m_Speed * Time.deltaTime);
        //Rotate the GameObject towards the second GameObject
        transform.rotation = m_MyQuaternion * transform.rotation;
    }
}

#pragma strict
//In this example your GameObject rotates towards the position of the mouse
public class Example extends MonoBehaviour {
	var m_MyQuaternion: Quaternion;
	var m_Speed: float = 1.0f;
	var m_MousePosition: Vector3;
	function Start() {
		m_MyQuaternion = new Quaternion();
	}
	function Update() {
		//Fetch the mouse's position
		m_MousePosition = Input.mousePosition;
		//Fix how far into the Scene the mouse should be
		m_MousePosition.z = 50.0f;
		//Transform the mouse position into world space
		m_MousePosition = Camera.main.ScreenToWorldPoint(m_MousePosition);
		//Set the Quaternion rotation from the GameObject's position to the mouse position
		m_MyQuaternion.SetFromToRotation(transform.position, m_MousePosition);
		//Move the GameObject towards the mouse position
		transform.position = Vector3.Lerp(transform.position, m_MousePosition, m_Speed * Time.deltaTime);
		//Rotate the GameObject towards the mouse position
		transform.rotation = m_MyQuaternion * transform.rotation;
	}
}

//In this example your GameObject rotates towards the position of the mouse

using UnityEngine;

public class Example : MonoBehaviour
{
    Quaternion m_MyQuaternion;
    float m_Speed = 1.0f;
    Vector3 m_MousePosition;

    void Start()
    {
        m_MyQuaternion = new Quaternion();
    }

    void Update()
    {
        //Fetch the mouse's position
        m_MousePosition = Input.mousePosition;

        //Fix how far into the Scene the mouse should be
        m_MousePosition.z = 50.0f;

        //Transform the mouse position into world space
        m_MousePosition = Camera.main.ScreenToWorldPoint(m_MousePosition);

        //Set the Quaternion rotation from the GameObject's position to the mouse position
        m_MyQuaternion.SetFromToRotation(transform.position, m_MousePosition);

        //Move the GameObject towards the mouse position
        transform.position = Vector3.Lerp(transform.position, m_MousePosition, m_Speed * Time.deltaTime);

        //Rotate the GameObject towards the mouse position
        transform.rotation = m_MyQuaternion * transform.rotation;
    }
}