Version: 2017.2
public static Quaternion LookRotation (Vector3 forward, Vector3 upwards= Vector3.up);


forward 前方向。Vector3(0, 0, 1) と同じ意味。
upwards 上方向を定義するベクトルです。 Vector3(0, 1, 0) と同意。


指定された forwardupwards 方向に回転します。

Returns the computed quaternion. If used to orient a Transform, the Z axis will be aligned with forward/ and the Y axis with upwards if these vectors are orthogonal. Logs an error if the forward direction is zero.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { public Transform target; void Update() { Vector3 relativePos = target.position - transform.position; Quaternion rotation = Quaternion.LookRotation(relativePos); transform.rotation = rotation; } }

関連項目: SetLookRotation.