beep-final/Assets/10_URPEquirectangularCamera/Scripts/CubemapRender.cs

using System;
using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using UnityEngine;

[ExecuteInEditMode]
public class CubemapRender : MonoBehaviour
{
    public RenderTexture cubeMap4K;
    public RenderTexture cubeMap1K;
    public Material mat;
    [Header("4K Rendering")]
    public bool m_4k = false;
    int faceMask = 63;
    Camera cam;

    void Start()
    {
        cam = GetComponent<Camera>();
    }

    void Update()
    {
        if(this.isActiveAndEnabled)
        {
            if (cubeMap1K != null && cubeMap4K != null)
            {
                // Render the scene to the cubemap
                if (m_4k && Application.isPlaying)
                {
                    cam.RenderToCubemap(cubeMap4K, faceMask);
                    mat.SetTexture("_MainTex", cubeMap4K);
                }
                else
                {
                    mat.SetTexture("_MainTex", cubeMap1K);
                    cam.RenderToCubemap(cubeMap1K, faceMask);
                }

            }
        }
    }
}