Make work with astra

UnityProject/Assets/ThirdParty/PostProcessing/Runtime/PostProcessingModel.cs

@@ -0,0 +1,27 @@
+using System;
+
+namespace UnityEngine.PostProcessing
+{
+    [Serializable]
+    public abstract class PostProcessingModel
+    {
+        [SerializeField, GetSet("enabled")]
+        bool m_Enabled;
+        public bool enabled
+        {
+            get { return m_Enabled; }
+            set
+            {
+                m_Enabled = value;
+
+                if (value)
+                    OnValidate();
+            }
+        }
+
+        public abstract void Reset();
+
+        public virtual void OnValidate()
+        {}
+    }
+}