Question

JavaScript => public static function LookRotation(forward: Vector3, upwards: Vector3 = Vector3.up): Quaternion;
C# => public static Quaternion LookRotation(Vector3 forward, Vector3 upwards = Vector3.up);

Parameters 参数

forward	The direction to look in.
upwards	The vector that defines in which direction up is.

Description 描述

Creates a rotation with the specified forward and upwards directions.

创建一个旋转，沿着forward（z轴）并且头部沿着upwards（y轴）的约束注视。也就是建立一个旋转，使z轴朝向view y轴朝向up。

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.

返回计算四元数。如果用于定向的变换，Z轴将会被对准前方并且如果这些向量正交，Y轴向前。如果forward方向是0，记录一个错误。

JavaScript:

	// Most of the time you can use:
	// transform.LookAt instead
 
	var target : Transform;
	function Update () {
		var relativePos = target.position - transform.position;
		var rotation = Quaternion.LookRotation(relativePos);
		transform.rotation = rotation;
	}

C#:

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;
    }
}

quaternion