using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Billboard : MonoBehaviour
{
    private Transform cameraTransform;

    private void Start()
    {
        cameraTransform = Camera.main.transform;
    }

    private void Update()
    {
        // 计算相机和UI的朝向
        Vector3 cameraForward = cameraTransform.forward;
        cameraForward.y = 0; // 将Y轴朝向清零，只在XZ平面上旋转
        Vector3 lookPosition = transform.position + cameraForward;

        // 旋转UI朝向相机
        transform.LookAt(lookPosition);
    }
}