port from perforce

aiwaz/Aiwaz.Contracts/IRenderCommandNode.cs

@@ -0,0 +1,18 @@
+using System.Collections.Generic;
+namespace Aiwaz.Contracts
+{
+    public interface IRenderCommandNode
+    {
+	    List<ICommandUser> CommandUsers { get; }
+	    bool IsDirty { get; }
+	    IRenderCommandNode Parent { get; set; }
+	    
+        void MarkDirty();
+	    void Add(ICommandUser argCommandUser);
+	    void Remove(ICommandUser argCommandUser);
+	    void ProcessCommands();
+
+        void GenerateDeviceCommands();
+        ICommandBuffer CommandBuffer { get; }
+    };
+}