GHZMRClassXR/Assets/SvrToXR/AddOnCamera.cs

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

public class AddOnCamera : MonoBehaviour
{

    public Transform LeftController, RightController;
    public Quaternion LeftControllerRotation, RightControllerRotation;

    private void OnPreRender()
    {
        //Debug.Log("OnPreRender:=========" + LeftControllerRotation+" "+ RightControllerRotation);
        if (LeftController)
        {
            LeftController.rotation = LeftControllerRotation;
        }
        if (RightController)
        {
            RightController.rotation = RightControllerRotation;
        }
    }
}