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Assets/ThirdParty/PostProcessing/Runtime/Utils/MaterialFactory.cs

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+using System;
+using System.Collections.Generic;
+
+namespace UnityEngine.PostProcessing
+{
+    using UnityObject = Object;
+
+    public sealed class MaterialFactory : IDisposable
+    {
+        Dictionary<string, Material> m_Materials;
+
+        public MaterialFactory()
+        {
+            m_Materials = new Dictionary<string, Material>();
+        }
+
+        public Material Get(string shaderName)
+        {
+            Material material;
+
+            if (!m_Materials.TryGetValue(shaderName, out material))
+            {
+                var shader = Shader.Find(shaderName);
+
+                if (shader == null)
+                    throw new ArgumentException(string.Format("Shader not found ({0})", shaderName));
+
+                material = new Material(shader)
+                {
+                    name = string.Format("PostFX - {0}", shaderName.Substring(shaderName.LastIndexOf("/") + 1)),
+                    hideFlags = HideFlags.DontSave
+                };
+
+                m_Materials.Add(shaderName, material);
+            }
+
+            return material;
+        }
+
+        public void Dispose()
+        {
+            var enumerator = m_Materials.GetEnumerator();
+            while (enumerator.MoveNext())
+            {
+                var material = enumerator.Current.Value;
+                GraphicsUtils.Destroy(material);
+            }
+
+            m_Materials.Clear();
+        }
+    }
+}