Refactor

Core/PostRenderHook.cs

@@ -1,5 +1,5 @@
-using System.Collections;
 using System.Reflection;
+using Cysharp.Threading.Tasks;
 using HarmonyLib;
 using UnityEngine;
 
@@ -9,6 +9,7 @@ namespace ADOFAIRenderer.Core;
 internal class PostRenderHook : MonoBehaviour
 {
     private FieldInfo? _camQuadMeshField;
+    private MeshRenderer? _camQuadMeshRenderer;
 
     private void Awake()
     {
@@ -20,15 +21,17 @@ internal class PostRenderHook : MonoBehaviour
         if (RenderManager.Instance)
             RenderManager.Instance.OnLastUpdate();
             
-        StartCoroutine(PostFrameCoroutine());
+        PostFrameAsync().Forget();
     }
 
-    private IEnumerator PostFrameCoroutine()
+    private async UniTaskVoid PostFrameAsync()
     {
-        yield return new WaitForEndOfFrame();
+        await UniTask.WaitForEndOfFrame(this, destroyCancellationToken);
             
-        var val = (MeshRenderer)_camQuadMeshField!.GetValue(scrCamera.instance);
-        if (RenderManager.Instance)
-            RenderManager.Instance.OnPostFrame(val.sharedMaterial.mainTexture as RenderTexture);
+        if (!_camQuadMeshRenderer && scrCamera.instance)
+            _camQuadMeshRenderer = _camQuadMeshField?.GetValue(scrCamera.instance) as MeshRenderer;
+
+        if (RenderManager.Instance && _camQuadMeshRenderer)
+            RenderManager.Instance.OnPostFrame(_camQuadMeshRenderer.sharedMaterial.mainTexture as RenderTexture);
     }
-}
+}