diff --git a/inc/hgl/graph/RenderDriver.h b/inc/hgl/graph/RenderDriver.h
index acc631cc..d86d3daa 100644
--- a/inc/hgl/graph/RenderDriver.h
+++ b/inc/hgl/graph/RenderDriver.h
@@ -1,25 +1,28 @@
-#ifndef HGL_RENDER_DRIVER_INCLUDE
+#ifndef HGL_RENDER_DRIVER_INCLUDE
 #define HGL_RENDER_DRIVER_INCLUDE
 
 #include<hgl/graph/RenderStatus.h>
 namespace hgl
 {
-    /**
-     * 渲染驱动
-     * 用于对真实渲染API的交接管理
-     */
-    class RenderDriver
+    namespace graph
     {
-    private:
+        /**
+        * 渲染驱动
+        * 用于对真实渲染API的交接管理
+        */
+        class RenderDriver
+        {
+        private:
 
-        RenderStatus current_status;
+            RenderStatus current_status;
 
-    public:
+        public:
 
-        virtual void SetCurStatus(const RenderStatus &)=0;
+            virtual void SetCurStatus(const RenderStatus &)=0;
 
-        virtual void ClearColorBuffer()=0;
-        virtual void ClearDepthBuffer()=0;
-    };//class RenderDriver
+            virtual void ClearColorBuffer()=0;
+            virtual void ClearDepthBuffer()=0;
+        };//class RenderDriver
+    }//namespace graph
 }//namespace hgl
 #endif//HGL_RENDER_DRIVER_INCLUDE