diff --git a/inc/hgl/graph/VKBuffer.h b/inc/hgl/graph/VKBuffer.h
index b76efbf1..7fe19a5d 100644
--- a/inc/hgl/graph/VKBuffer.h
+++ b/inc/hgl/graph/VKBuffer.h
@@ -48,61 +48,5 @@ public:
             bool    Write   (const void *ptr,uint32_t size)                 {return buf.memory->Write(ptr,0,size);}
             bool    Write   (const void *ptr)                               {return buf.memory->Write(ptr);}
 };//class GPUBuffer
-
-class VertexAttribBuffer:public GPUBuffer
-{
-    VkFormat format;                    ///<数据格式
-    uint32_t stride;                    ///<单个数据字节数
-    uint32_t count;                     ///<数据数量
-
-private:
-
-    friend class GPUDevice;
-
-    VertexAttribBuffer(VkDevice d,const GPUBufferData &vb,VkFormat fmt,uint32_t _stride,uint32_t _count):GPUBuffer(d,vb)
-    {
-        format=fmt;
-        stride=_stride;
-        count=_count;
-    }
-
-public:
-
-    ~VertexAttribBuffer()=default;
-
-    const VkFormat GetFormat()const { return format; }
-    const uint32_t GetStride()const { return stride; }
-    const uint32_t GetCount ()const { return count; }
-
-    void *Map(VkDeviceSize start=0,VkDeviceSize size=0) override
-    {
-        return GPUBuffer::Map(start*stride,size*stride);
-    }
-};//class VertexAttribBuffer:public GPUBuffer
-
-using VAB=VertexAttribBuffer;
-
-class IndexBuffer:public GPUBuffer
-{
-    IndexType index_type;
-    uint32_t count;
-
-private:
-
-    friend class GPUDevice;
-
-    IndexBuffer(VkDevice d,const GPUBufferData &vb,IndexType it,uint32_t _count):GPUBuffer(d,vb)
-    {
-        index_type=it;
-        count=_count;
-    }
-
-public:
-
-    ~IndexBuffer()=default;
-
-    const IndexType GetType ()const{return index_type;}
-    const uint32    GetCount()const{return count;}
-};//class IndexBuffer:public GPUBuffer
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_VULKAN_BUFFER_INCLUDE
diff --git a/inc/hgl/graph/VKIndexBuffer.h b/inc/hgl/graph/VKIndexBuffer.h
new file mode 100644
index 00000000..9dc375a4
--- /dev/null
+++ b/inc/hgl/graph/VKIndexBuffer.h
@@ -0,0 +1,34 @@
+#ifndef HGL_GRAPH_VULKAN_INDEX_BUFFER_INCLUDE
+#define HGL_GRAPH_VULKAN_INDEX_BUFFER_INCLUDE
+
+#include<hgl/graph/VKBuffer.h>
+
+namespace hgl
+{
+    namespace graph
+    {
+        class IndexBuffer:public GPUBuffer
+        {
+            IndexType index_type;
+            uint32_t count;
+
+        private:
+
+            friend class GPUDevice;
+
+            IndexBuffer(VkDevice d,const GPUBufferData &vb,IndexType it,uint32_t _count):GPUBuffer(d,vb)
+            {
+                index_type=it;
+                count=_count;
+            }
+
+        public:
+
+            ~IndexBuffer()=default;
+
+            const IndexType GetType ()const{return index_type;}
+            const uint32    GetCount()const{return count;}
+        };//class IndexBuffer:public GPUBuffer
+    }//namespace graph
+}//namespace hgl
+#endif//HGL_GRAPH_VULKAN_INDEX_BUFFER_INCLUDE
diff --git a/inc/hgl/graph/VKVertexAttribBuffer.h b/inc/hgl/graph/VKVertexAttribBuffer.h
new file mode 100644
index 00000000..7c497051
--- /dev/null
+++ b/inc/hgl/graph/VKVertexAttribBuffer.h
@@ -0,0 +1,44 @@
+#ifndef HGL_GRAPH_VULKAN_VERTEX_ATTRIB_BUFFER_INCLUDE
+#define HGL_GRAPH_VULKAN_VERTEX_ATTRIB_BUFFER_INCLUDE
+
+#include<hgl/graph/VKBuffer.h>
+
+namespace hgl
+{
+    namespace graph
+    {
+        class VertexAttribBuffer:public GPUBuffer
+        {
+            VkFormat format;                    ///<���ݸ�ʽ
+            uint32_t stride;                    ///<���������ֽ���
+            uint32_t count;                     ///<��������
+
+        private:
+
+            friend class GPUDevice;
+
+            VertexAttribBuffer(VkDevice d,const GPUBufferData &vb,VkFormat fmt,uint32_t _stride,uint32_t _count):GPUBuffer(d,vb)
+            {
+                format=fmt;
+                stride=_stride;
+                count=_count;
+            }
+
+        public:
+
+            ~VertexAttribBuffer()=default;
+
+            const VkFormat GetFormat()const { return format; }
+            const uint32_t GetStride()const { return stride; }
+            const uint32_t GetCount ()const { return count; }
+
+            void *Map(VkDeviceSize start=0,VkDeviceSize size=0) override
+            {
+                return GPUBuffer::Map(start*stride,size*stride);
+            }
+        };//class VertexAttribBuffer:public GPUBuffer
+
+        using VAB=VertexAttribBuffer;
+    }//namespace graph
+}//namespace hgl
+#endif//HGL_GRAPH_VULKAN_VERTEX_ATTRIB_BUFFER_INCLUDE