Fixes for event system

resources/debug/debug.material

@@ -69,3 +69,27 @@ material Debug/Red2
 	}
 }
 
+/**
+ * Debug material for normal visualization overlay.
+ * Renders on top of everything (depth_check off, depth_write off)
+ * Uses vertex colours so each normal line can have its own colour.
+ * Rendered in overlay queue to appear on top of all geometry.
+ */
+material Debug/NormalOverlay
+{
+	technique
+	{
+		pass
+		{
+			lighting off
+			depth_check off
+			depth_write off
+			ambient 1.0 1.0 1.0 1.0
+			diffuse vertexcolour
+			specular 0.0 0.0 0.0 1.0
+			cull_software none
+			cull_hardware none
+			scene_blend alpha_blend
+		}
+	}
+}