diff --git a/example/LightBasic/BlinnPhongDirectionLight.cpp b/example/LightBasic/BlinnPhongDirectionLight.cpp
index 3b2e5939..b10e8ead 100644
--- a/example/LightBasic/BlinnPhongDirectionLight.cpp
+++ b/example/LightBasic/BlinnPhongDirectionLight.cpp
@@ -10,9 +10,8 @@
 #include<hgl/graph/VKVertexAttribBuffer.h>
 #include<hgl/graph/mtl/Material3DCreateConfig.h>
 #include<hgl/graph/mtl/BlinnPhong.h>
+#include<hgl/graph/VertexDataManager.h>
 #include<hgl/color/Color.h>
-#include<hgl/type/DataChain.h>
-#include<hgl/type/MemoryBlock.h>
 
 using namespace hgl;
 using namespace hgl::graph;
@@ -35,90 +34,6 @@ constexpr const COLOR AxisColor[4]=
     COLOR::White    //全局颜色
 };
 
-class VertexDataManager
-{
-    GPUDevice *device;
-
-protected:
-
-    uint            vi_count;       ///<顶点输入流数量
-    const VIF *     vif_list;       ///<顶点输入格式列表
-    
-    VkDeviceSize    vbo_max_size;   ///<顶点缓冲区分配空间大小
-    VkDeviceSize    vbo_cur_size;   ///<顶点缓冲区当前使用大小
-    VBO **          vbo;            ///<顶点缓冲区列表
-    
-    VkDeviceSize    ibo_cur_size;   ///<索引缓冲区当前使用大小
-    IndexBuffer *   ibo;            ///<索引缓冲区
-
-protected:
-
-    DataChain       data_chain;     ///<数据链
-
-public:
-
-    VertexDataManager(GPUDevice *dev,const VIL &_vil)
-    {
-        device=dev;
-
-        vi_count=_vil.GetCount();
-        vif_list=_vil.GetVIFList();     //来自于Material，不会被释放，所以指针有效
-
-        vbo_max_size=0;
-        vbo_cur_size=0;
-        vbo=hgl_zero_new<VBO *>(vi_count);
-
-        ibo_cur_size=0;
-        ibo=nullptr;
-    }
-
-    ~VertexDataManager()
-    {
-        SAFE_CLEAR_OBJECT_ARRAY(vbo,vi_count);
-        SAFE_CLEAR(ibo);
-    }
-
-    const VkDeviceSize  GetVBOMaxCount  ()const{return vbo_max_size;}                                ///<取得顶点缓冲区分配的空间最大数量
-    const VkDeviceSize  GetVBOCurCount  ()const{return vbo_cur_size;}                                ///<取得顶点缓冲区当前数量
-
-    const IndexType     GetIBOType      ()const{return ibo?ibo->GetType():IndexType::ERR;}           ///<取得索引缓冲区类型
-    const VkDeviceSize  GetIBOMaxCount  ()const{return ibo?ibo->GetCount():-1;}                      ///<取得索引缓冲区分配的空间最大数量
-    const VkDeviceSize  GetIBOCurCount  ()const{return ibo?ibo_cur_size:-1;}                         ///<取得索引缓冲区当前数量
-
-public:
-
-    bool Init(const VkDeviceSize vbo_size,const VkDeviceSize ibo_size,const IndexType index_type)
-    {
-        if(vbo[0]||ibo)     //已经初始化过了
-            return(false);
-
-        if(vbo_size<=0)
-            return(false);
-    
-        vbo_max_size=vbo_size;
-        ibo_cur_size=ibo_size;
-
-        vbo_cur_size=0;
-        ibo_cur_size=0;
-
-        for(uint i=0;i<vi_count;i++)
-        {
-            vbo[i]=device->CreateVBO(vif_list[i].format,vbo_max_size);
-            if(!vbo[i])
-                return(false);
-        }
-
-        if(ibo_size>0)
-        {
-            ibo=device->CreateIBO(index_type,ibo_size);
-            if(!ibo)
-                return(false);
-        }
-    
-        return(true);
-    }
-};//class VertexDataManager
-
 class TestApp:public SceneAppFramework
 {
 private:    //plane grid
diff --git a/inc/hgl/graph/VertexDataManager.h b/inc/hgl/graph/VertexDataManager.h
new file mode 100644
index 00000000..aeb3a1ec
--- /dev/null
+++ b/inc/hgl/graph/VertexDataManager.h
@@ -0,0 +1,94 @@
+#pragma once
+
+#include<hgl/graph/VK.h>
+#include<hgl/type/DataChain.h>
+
+namespace hgl
+{
+    namespace graph
+    {
+        class VertexDataManager
+        {
+            GPUDevice *device;
+
+        protected:
+
+            uint            vi_count;       ///<顶点输入流数量
+            const VIF *     vif_list;       ///<顶点输入格式列表
+
+            VkDeviceSize    vbo_max_size;   ///<顶点缓冲区分配空间大小
+            VkDeviceSize    vbo_cur_size;   ///<顶点缓冲区当前使用大小
+            VBO **          vbo;            ///<顶点缓冲区列表
+
+            VkDeviceSize    ibo_cur_size;   ///<索引缓冲区当前使用大小
+            IndexBuffer *   ibo;            ///<索引缓冲区
+
+        protected:
+
+            DataChain       data_chain;     ///<数据链
+
+        public:
+
+            VertexDataManager(GPUDevice *dev,const VIL *_vil)
+            {
+                device=dev;
+
+                vi_count=_vil->GetCount();
+                vif_list=_vil->GetVIFList();     //来自于Material，不会被释放，所以指针有效
+
+                vbo_max_size=0;
+                vbo_cur_size=0;
+                vbo=hgl_zero_new<VBO *>(vi_count);
+
+                ibo_cur_size=0;
+                ibo=nullptr;
+            }
+
+            ~VertexDataManager()
+            {
+                SAFE_CLEAR_OBJECT_ARRAY(vbo,vi_count);
+                SAFE_CLEAR(ibo);
+            }
+
+            const VkDeviceSize  GetVBOMaxCount  ()const{return vbo_max_size;}                                ///<取得顶点缓冲区分配的空间最大数量
+            const VkDeviceSize  GetVBOCurCount  ()const{return vbo_cur_size;}                                ///<取得顶点缓冲区当前数量
+
+            const IndexType     GetIBOType      ()const{return ibo?ibo->GetType():IndexType::ERR;}           ///<取得索引缓冲区类型
+            const VkDeviceSize  GetIBOMaxCount  ()const{return ibo?ibo->GetCount():-1;}                      ///<取得索引缓冲区分配的空间最大数量
+            const VkDeviceSize  GetIBOCurCount  ()const{return ibo?ibo_cur_size:-1;}                         ///<取得索引缓冲区当前数量
+
+        public:
+
+            bool Init(const VkDeviceSize vbo_size,const VkDeviceSize ibo_size,const IndexType index_type)
+            {
+                if(vbo[0]||ibo)     //已经初始化过了
+                    return(false);
+
+                if(vbo_size<=0)
+                    return(false);
+
+                vbo_max_size=vbo_size;
+                ibo_cur_size=ibo_size;
+
+                vbo_cur_size=0;
+                ibo_cur_size=0;
+
+                for(uint i=0;i<vi_count;i++)
+                {
+                    vbo[i]=device->CreateVBO(vif_list[i].format,vbo_max_size);
+                    if(!vbo[i])
+                        return(false);
+                }
+
+                if(ibo_size>0)
+                {
+                    ibo=device->CreateIBO(index_type,ibo_size);
+                    if(!ibo)
+                        return(false);
+                }
+
+                return(true);
+            }
+        };//class VertexDataManager
+    }//namespace graph
+}//namespace hgl
diff --git a/src/SceneGraph/CMakeLists.txt b/src/SceneGraph/CMakeLists.txt
index 2972d398..b5b9b8c6 100644
--- a/src/SceneGraph/CMakeLists.txt
+++ b/src/SceneGraph/CMakeLists.txt
@@ -13,6 +13,10 @@ SET(SG_VAD_SOURCE   ${SG_INCLUDE_PATH}/VertexAttribData.h
 
 SOURCE_GROUP("VertexAttribData" FILES ${SG_VAD_SOURCE})
 
+SET(SG_VDM_SOURCE   ${SG_INCLUDE_PATH}/VertexDataManager.h)
+
+SOURCE_GROUP("VertexDataManager" FILES ${SG_VDM_SOURCE})
+
 SET(TILE_SOURCE ${SG_INCLUDE_PATH}/TileData.h
                 TileData.cpp)
 
@@ -303,6 +307,7 @@ add_cm_library(ULRE.SceneGraph "ULRE"   ${SCENE_GRAPH_HEADER}
                                         ${SG_TEXTURE_SOURCE}
                                         ${TILE_SOURCE}
                                         ${SG_VAD_SOURCE}
+                                        ${SG_VDM_SOURCE}
 
 #                                        ${FONT_MANAGE_SOURCE}
 #                                        ${FONT_SOURCE}