diff --git a/inc/hgl/graph/VK.h b/inc/hgl/graph/VK.h
index c5497279..01b39212 100644
--- a/inc/hgl/graph/VK.h
+++ b/inc/hgl/graph/VK.h
@@ -114,7 +114,9 @@ class MaterialInstance;
 struct PipelineData;
 enum class InlinePipeline;
 class Pipeline;
+
 class VertexAttributeBinding;
+using VAB=VertexAttributeBinding;
 
 class Renderable;
 class RenderableInstance;
diff --git a/inc/hgl/graph/VKMaterial.h b/inc/hgl/graph/VKMaterial.h
index 59d9e523..990135c0 100644
--- a/inc/hgl/graph/VKMaterial.h
+++ b/inc/hgl/graph/VKMaterial.h
@@ -15,7 +15,7 @@ struct MaterialData
     MaterialDescriptorSets *mds;
 
     VertexShaderModule *vertex_sm;
-    VertexAttributeBinding *vbo;
+    VertexAttributeBinding *vab;
 
     List<VkPipelineShaderStageCreateInfo> shader_stage_list;
 
@@ -63,7 +63,7 @@ public:
     const   VkPipelineLayout                    GetPipelineLayout       ()const;
     const   PipelineLayoutData *                GetPipelineLayoutData   ()const{return data->pipeline_layout_data;}
   
-    const   VertexAttributeBinding *            GetVBO                  ()const{return data->vbo;}
+    const   VertexAttributeBinding *            GetVAB                  ()const{return data->vab;}
 
 public:
 
diff --git a/inc/hgl/graph/VKShaderModule.h b/inc/hgl/graph/VKShaderModule.h
index d7843de3..9b8a688b 100644
--- a/inc/hgl/graph/VKShaderModule.h
+++ b/inc/hgl/graph/VKShaderModule.h
@@ -86,8 +86,8 @@ public:
 
 public:
 
-    VertexAttributeBinding *                    CreateVertexAttributeBinding();
-    bool                                        Release(VertexAttributeBinding *);
+    VAB *                                       CreateVAB();
+    bool                                        Release(VAB *);
     const uint32_t                              GetInstanceCount()const{return vab_sets.GetCount();}
 };//class VertexShaderModule:public ShaderModule
 VK_NAMESPACE_END
diff --git a/inc/hgl/graph/VKVertexAttributeBinding.h b/inc/hgl/graph/VKVertexAttributeBinding.h
index 8dcda51c..e7dd6b47 100644
--- a/inc/hgl/graph/VKVertexAttributeBinding.h
+++ b/inc/hgl/graph/VKVertexAttributeBinding.h
@@ -33,5 +33,7 @@ public:
     const VkVertexInputBindingDescription *     GetVertexBindingList    ()const{return binding_list;}
     const VkVertexInputAttributeDescription *   GetVertexAttributeList  ()const{return attribute_list;}
 };//class VertexAttributeBinding
+
+using VAB=VertexAttributeBinding;
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_VULKAN_VERTEX_ATTRIBUTE_BINDING_INCLUDE
diff --git a/src/SceneGraph/Vulkan/VKDeviceMaterial.cpp b/src/SceneGraph/Vulkan/VKDeviceMaterial.cpp
index 018e457b..dc9bf730 100644
--- a/src/SceneGraph/Vulkan/VKDeviceMaterial.cpp
+++ b/src/SceneGraph/Vulkan/VKDeviceMaterial.cpp
@@ -104,7 +104,7 @@ Material *GPUDevice::CreateMaterial(const UTF8String &mtl_name,ShaderModuleMap *
     data->shader_maps   =shader_maps;
     data->mds           =mds;
     data->vertex_sm     =(VertexShaderModule *)vsm;
-    data->vbo           =data->vertex_sm->CreateVertexAttributeBinding();
+    data->vab           =data->vertex_sm->CreateVAB();
 
     CreateShaderStageList(data->shader_stage_list,shader_maps);
 
diff --git a/src/SceneGraph/Vulkan/VKMaterial.cpp b/src/SceneGraph/Vulkan/VKMaterial.cpp
index 32e97431..db6ba3d3 100644
--- a/src/SceneGraph/Vulkan/VKMaterial.cpp
+++ b/src/SceneGraph/Vulkan/VKMaterial.cpp
@@ -9,10 +9,10 @@ MaterialData::~MaterialData()
     SAFE_CLEAR(mp.r);
     SAFE_CLEAR(mp.g);
 
-    if(vbo)
+    if(vab)
     {
-        vertex_sm->Release(vbo);
-        delete vbo;
+        vertex_sm->Release(vab);
+        delete vab;
     }
 
     delete shader_maps;
diff --git a/src/SceneGraph/Vulkan/VKRenderPass.cpp b/src/SceneGraph/Vulkan/VKRenderPass.cpp
index 34dd50d8..725ded90 100644
--- a/src/SceneGraph/Vulkan/VKRenderPass.cpp
+++ b/src/SceneGraph/Vulkan/VKRenderPass.cpp
@@ -27,13 +27,13 @@ Pipeline *RenderPass::CreatePipeline(const Material *material,PipelineData *data
 {
     VkPipeline graphicsPipeline;
 
-    const VertexAttributeBinding *vbo=material->GetVBO();
+    const VAB *vab=material->GetVAB();
     
     data->InitVertexInputState( material->GetStageCount(),
                                 material->GetStages(),
-                                vbo->GetVertexAttrCount(),
-                                vbo->GetVertexBindingList(),
-                                vbo->GetVertexAttributeList());
+                                vab->GetVertexAttrCount(),
+                                vab->GetVertexBindingList(),
+                                vab->GetVertexAttributeList());
 
     data->SetColorAttachments(color_formats.GetCount());
 
diff --git a/src/SceneGraph/Vulkan/VKShaderModule.cpp b/src/SceneGraph/Vulkan/VKShaderModule.cpp
index bdeb5530..49d189c8 100644
--- a/src/SceneGraph/Vulkan/VKShaderModule.cpp
+++ b/src/SceneGraph/Vulkan/VKShaderModule.cpp
@@ -88,16 +88,16 @@ VertexShaderModule::~VertexShaderModule()
     SAFE_CLEAR_ARRAY(attribute_list);
 }
 
-VertexAttributeBinding *VertexShaderModule::CreateVertexAttributeBinding()
+VAB *VertexShaderModule::CreateVAB()
 {
-    VertexAttributeBinding *vab=new VertexAttributeBinding(attr_count,binding_list,attribute_list);
+    VAB *vab=new VAB(attr_count,binding_list,attribute_list);
 
     vab_sets.Add(vab);
 
     return(vab);
 }
 
-bool VertexShaderModule::Release(VertexAttributeBinding *vab)
+bool VertexShaderModule::Release(VAB *vab)
 {
     return vab_sets.Delete(vab);
 }