【Unity】スクリーンショットを Texture2D へ書き込む

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
class ScreenCapture : MonoBehaviour
{
    public void Run( Action<Texture2D> _onComplete, float _quality = 1.0f)
    {
        StartCoroutine(this.Take(_onComplete, _quality));
    }
 
    private IEnumerator Take(Action<Texture2D> _onComplete, float _quality)
    {
        // 1フレームレンダリング完了まで待つ。
        yield return new WaitForEndOfFrame();
 
        int capture_width = (int)((float)Screen.width * _quality);
        int capture_height = (int)((float)Screen.height * _quality);
 
        Texture2D screenShot = new Texture2D(capture_width, capture_height, TextureFormat.RGB24, false );
 
        screenShot.ReadPixels( new Rect( 0, 0, screenShot.width, screenShot.height ), 0 , 0 );
        screenShot.Apply();
        _onComplete.Call(screenShot);
        yield break;
    }
    public static ScreenCapture Create(GameObject _parent)
    {
        GameObject go = new GameObject("ScreenCapture");
        go.transform.SetParent(_parent.transform);
        
        ScreenCapture capture = go.AddComponent<ScreenCapture>();
        return capture;
    }
}

var capture = ScreenCapture.Create(this.gameObject);
capture.Run(_onComplete:(__tex2D )=>
{
	// _TODO
});