1 files changed, 43 insertions, 0 deletions
diff --git a/UnityEngine.PostProcessing/MaterialFactory.cs b/UnityEngine.PostProcessing/MaterialFactory.cs
new file mode 100644
index 0000000..dbbed34
--- /dev/null
+++ b/UnityEngine.PostProcessing/MaterialFactory.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+
+namespace UnityEngine.PostProcessing;
+
+public sealed class MaterialFactory : IDisposable
+{
+	private Dictionary<string, Material> m_Materials;
+
+	public MaterialFactory()
+	{
+		m_Materials = new Dictionary<string, Material>();
+	}
+
+	public Material Get(string shaderName)
+	{
+		if (!m_Materials.TryGetValue(shaderName, out var value))
+		{
+			Shader shader = Shader.Find(shaderName);
+			if (shader == null)
+			{
+				throw new ArgumentException($"Shader not found ({shaderName})");
+			}
+			Material material = new Material(shader);
+			material.name = string.Format("PostFX - {0}", shaderName.Substring(shaderName.LastIndexOf("/") + 1));
+			material.hideFlags = HideFlags.DontSave;
+			value = material;
+			m_Materials.Add(shaderName, value);
+		}
+		return value;
+	}
+
+	public void Dispose()
+	{
+		Dictionary<string, Material>.Enumerator enumerator = m_Materials.GetEnumerator();
+		while (enumerator.MoveNext())
+		{
+			Material value = enumerator.Current.Value;
+			GraphicsUtils.Destroy(value);
+		}
+		m_Materials.Clear();
+	}
+}