diff --git a/inc/hgl/graph/VKDevice.h b/inc/hgl/graph/VKDevice.h
index dedac110..29ca26b4 100644
--- a/inc/hgl/graph/VKDevice.h
+++ b/inc/hgl/graph/VKDevice.h
@@ -187,9 +187,9 @@ public: //shader & material
     
     ShaderModule *CreateShaderModule(ShaderResource *);
     
-    Material *CreateMaterial(ShaderModuleMap *shader_maps);    
-    Material *CreateMaterial(const VertexShaderModule *vertex_shader_module,const ShaderModule *fragment_shader_module);
-    Material *CreateMaterial(const VertexShaderModule *vertex_shader_module,const ShaderModule *geometry_shader_module,const ShaderModule *fragment_shader_module);
+    Material *CreateMaterial(const UTF8String &mtl_name,ShaderModuleMap *shader_maps);    
+    Material *CreateMaterial(const UTF8String &mtl_name,const VertexShaderModule *vertex_shader_module,const ShaderModule *fragment_shader_module);
+    Material *CreateMaterial(const UTF8String &mtl_name,const VertexShaderModule *vertex_shader_module,const ShaderModule *geometry_shader_module,const ShaderModule *fragment_shader_module);
 
 public: //Command Buffer 相关
 
diff --git a/inc/hgl/graph/VKMaterial.h b/inc/hgl/graph/VKMaterial.h
index c73bd8d9..af2798a1 100644
--- a/inc/hgl/graph/VKMaterial.h
+++ b/inc/hgl/graph/VKMaterial.h
@@ -15,6 +15,8 @@ class DescriptorSetLayoutCreater;
  */
 class Material
 {
+    UTF8String mtl_name;
+
     ShaderModuleMap *shader_maps;
     VertexShaderModule *vertex_sm;
     List<VkPipelineShaderStageCreateInfo> *shader_stage_list;
@@ -25,12 +27,14 @@ class Material
 
 public:
 
-    Material(ShaderModuleMap *smm,List<VkPipelineShaderStageCreateInfo> *,DescriptorSetLayoutCreater *dslc);
+    Material(const UTF8String &name,ShaderModuleMap *smm,List<VkPipelineShaderStageCreateInfo> *,DescriptorSetLayoutCreater *dslc);
     ~Material();
 
-    const VertexShaderModule *GetVertexShaderModule()const{return vertex_sm;}
+    const UTF8String &          GetName()const{return mtl_name;}
 
-    const int GetBinding(VkDescriptorType,const AnsiString &)const;
+    const VertexShaderModule *  GetVertexShaderModule()const{return vertex_sm;}
+
+    const int                   GetBinding(VkDescriptorType,const AnsiString &)const;
 
 #define GET_BO_BINDING(name,vk_name)    const int Get##name(const AnsiString &obj_name)const{return GetBinding(VK_DESCRIPTOR_TYPE_##vk_name,obj_name);}
 //        GET_BO_BINDING(Sampler,             SAMPLER)
diff --git a/inc/hgl/graph/VKRenderResource.h b/inc/hgl/graph/VKRenderResource.h
index 6ca5193d..360fdbc6 100644
--- a/inc/hgl/graph/VKRenderResource.h
+++ b/inc/hgl/graph/VKRenderResource.h
@@ -89,8 +89,8 @@ public: //Material
     const ShaderModule *CreateShaderModule(const OSString &filename,ShaderResource *shader_resource);
     const ShaderModule *CreateShaderModule(const OSString &filename);
     
-    Material *          CreateMaterial(const OSString &vertex_shader_filename,const OSString &fragment_shader_filename);    
-    Material *          CreateMaterial(const OSString &vertex_shader_filename,const OSString &geometry_shader_filename,const OSString &fragment_shader_filename);
+    Material *          CreateMaterial(const UTF8String &mtl_name,const OSString &vertex_shader_filename,const OSString &fragment_shader_filename);    
+    Material *          CreateMaterial(const UTF8String &mtl_name,const OSString &vertex_shader_filename,const OSString &geometry_shader_filename,const OSString &fragment_shader_filename);
 
     Material *          CreateMaterial(const OSString &);
     MaterialInstance *  CreateMaterialInstance(Material *);
diff --git a/src/SceneGraph/Vulkan/VKRenderResourceMaterial.cpp b/src/SceneGraph/Vulkan/VKRenderResourceMaterial.cpp
index 115ff673..e95cb0aa 100644
--- a/src/SceneGraph/Vulkan/VKRenderResourceMaterial.cpp
+++ b/src/SceneGraph/Vulkan/VKRenderResourceMaterial.cpp
@@ -44,7 +44,7 @@ const ShaderModule *RenderResource::CreateShaderModule(const OSString &filename)
     return sm;
 }
 
-Material *RenderResource::CreateMaterial(const OSString &vertex_shader_filename,const OSString &fragment_shader_filename)
+Material *RenderResource::CreateMaterial(const UTF8String &mtl_name,const OSString &vertex_shader_filename,const OSString &fragment_shader_filename)
 {
     const ShaderModule *vs=CreateShaderModule(vertex_shader_filename);
 
@@ -56,10 +56,10 @@ Material *RenderResource::CreateMaterial(const OSString &vertex_shader_filename,
     if(!fs)
         return(nullptr);
 
-    return(device->CreateMaterial((VertexShaderModule *)vs,fs));
+    return(device->CreateMaterial(mtl_name,(VertexShaderModule *)vs,fs));
 }
 
-Material *RenderResource::CreateMaterial(const OSString &vertex_shader_filename,const OSString &geometry_shader_filename,const OSString &fragment_shader_filename)
+Material *RenderResource::CreateMaterial(const UTF8String &mtl_name,const OSString &vertex_shader_filename,const OSString &geometry_shader_filename,const OSString &fragment_shader_filename)
 {
     const ShaderModule *vs=CreateShaderModule(vertex_shader_filename);
 
@@ -76,7 +76,7 @@ Material *RenderResource::CreateMaterial(const OSString &vertex_shader_filename,
     if(!fs)
         return(nullptr);
 
-    return(device->CreateMaterial((VertexShaderModule *)vs,gs,fs));
+    return(device->CreateMaterial(mtl_name,(VertexShaderModule *)vs,gs,fs));
 }
 
 Material *RenderResource::CreateMaterial(const OSString &filename)
@@ -163,7 +163,7 @@ Material *RenderResource::CreateMaterial(const OSString &filename)
 
     if(result)
     {
-        mtl=device->CreateMaterial(smm);
+        mtl=device->CreateMaterial(ToUTF8String(filename),smm);
         Add(mtl);
     }
     else