Add **Depth Offset to materials**

Source/Engine/Graphics/Materials/MaterialInfo.h

@@ -330,6 +330,11 @@ API_ENUM(Attributes="Flags") enum class MaterialUsageFlags : uint32
     /// The flag used to indicate that material uses refraction feature.
     /// </summary>
     UseRefraction = 1 << 6,
+
+    /// <summary>
+    /// The flag used to indicate that material uses per-pixel depth offset feature.
+    /// </summary>
+    UseDepthOffset = 1 << 7,
 };
 
 DECLARE_ENUM_OPERATORS(MaterialUsageFlags);

Source/Engine/Graphics/Materials/MaterialShader.h

@@ -10,7 +10,7 @@
 /// <summary>
 /// Current materials shader version.
 /// </summary>
-#define MATERIAL_GRAPH_VERSION 159
+#define MATERIAL_GRAPH_VERSION 160
 
 class Material;
 class GPUShader;