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

Parameters

forward要查看的方向。
upwards定义向上方向的向量。

Description

使用指定的 forwardupwards 方向创建旋转。

Z axis will be aligned with forward, X axis aligned with cross product between forward and upwards, and Y axis aligned with cross product between Z and X.

Returns identity if forward or upwards magnitude is zero.
Returns identity if forward and upwards are colinear.

// You can also use transform.LookAt

using UnityEngine; using System.Collections;

public class ExampleClass : MonoBehaviour { public Transform target;

void Update() { Vector3 relativePos = target.position - transform.position;

// the second argument, upwards, defaults to Vector3.up Quaternion rotation = Quaternion.LookRotation(relativePos, Vector3.up); transform.rotation = rotation; } }

另请参阅:SetLookRotation