diff --git a/example/Vulkan/first_triangle.cpp b/example/Vulkan/first_triangle.cpp
index 9784cc56..5d52e55f 100644
--- a/example/Vulkan/first_triangle.cpp
+++ b/example/Vulkan/first_triangle.cpp
@@ -85,25 +85,14 @@ private:
     #endif//USE_HALF_FLOAT_POSITION
     }
 
-    bool InitMaterial()
-    {
-#if defined(USE_HALF_FLOAT_POSITION)||defined(USE_UNORM8_COLOR)
-        material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/VertexColor2DNDC"),&vil_config);
-#else
-        material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/VertexColor2DNDC"));
-#endif//
-
-        return material_instance;
-    }
-
     bool InitAutoMaterial()
     {
-        mtl::Material2DConfig cfg;
+        mtl::Material2DConfig cfg("VertexColor2d");
 
-        cfg.coordinate_system=mtl::CoordinateSystem2D::NDC;
+        cfg.coordinate_system=CoordinateSystem2D::NDC;
         cfg.local_to_world=false;
 
-        AutoDelete<MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
+        AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
 
         material_instance=db->CreateMaterialInstance(mci,&vil_config);
 
diff --git a/example/Vulkan/second_triangle.cpp b/example/Vulkan/second_triangle.cpp
index 3b7d5c32..beb698b8 100644
--- a/example/Vulkan/second_triangle.cpp
+++ b/example/Vulkan/second_triangle.cpp
@@ -45,17 +45,17 @@ private:
 
     bool InitMaterial()
     {
-        mtl::Material2DConfig cfg;
+        mtl::Material2DConfig cfg("VertexColor2D");
 
 #ifdef USE_ZERO2ONE_COORD
-        cfg.coordinate_system=mtl::CoordinateSystem2D::ZeroToOne;
+        cfg.coordinate_system=CoordinateSystem2D::ZeroToOne;
 #else
-        cfg.coordinate_system=mtl::CoordinateSystem2D::Ortho;
+        cfg.coordinate_system=CoordinateSystem2D::Ortho;
 #endif//USE_ZERO2ONE_COORD
 
         cfg.local_to_world=false;
 
-        AutoDelete<MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
+        AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
 
         material_instance=db->CreateMaterialInstance(mci);
 
diff --git a/example/Vulkan/third_triangle.cpp b/example/Vulkan/third_triangle.cpp
index 73ebc7fc..16ae8864 100644
--- a/example/Vulkan/third_triangle.cpp
+++ b/example/Vulkan/third_triangle.cpp
@@ -46,12 +46,12 @@ private:
     bool InitMaterial()
     {
         {
-            mtl::Material2DConfig cfg;
+            mtl::Material2DConfig cfg("VertexColor2D");
 
-            cfg.coordinate_system=mtl::CoordinateSystem2D::NDC;
+            cfg.coordinate_system=CoordinateSystem2D::NDC;
             cfg.local_to_world=true;
 
-            AutoDelete<MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
+            AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
 
             material_instance=db->CreateMaterialInstance(mci);
         }
diff --git a/example/common/VulkanAppFramework.h b/example/common/VulkanAppFramework.h
index 6dbb6192..4823ce23 100644
--- a/example/common/VulkanAppFramework.h
+++ b/example/common/VulkanAppFramework.h
@@ -20,7 +20,7 @@
 #include<hgl/graph/VKRenderTarget.h>
 #include<hgl/graph/VKRenderResource.h>
 #include<hgl/graph/RenderList.h>
-#include<hgl/graph/mtl/StdMaterial.h>
+#include<hgl/graph/mtl/UBOCommon.h>
 #include<hgl/color/Color.h>
 #include<hgl/Time.h>
 
diff --git a/src/ShaderGen/2d/Std2DMaterial.cpp b/src/ShaderGen/2d/Std2DMaterial.cpp
index a43219ee..cd7963d2 100644
--- a/src/ShaderGen/2d/Std2DMaterial.cpp
+++ b/src/ShaderGen/2d/Std2DMaterial.cpp
@@ -1,27 +1,62 @@
 #include"Std2DMaterial.h"
 #include<hgl/shadergen/MaterialCreateInfo.h>
 #include<hgl/graph/mtl/2d/Material2DConfig.h>
+#include<hgl/graph/mtl/UBOCommon.h>
+#include"common/MFGetPosition.h"
+#include"common/MFCommon.h"
 
 STD_MTL_NAMESPACE_BEGIN
 Std2DMaterial::Std2DMaterial(const Material2DConfig *c)
-{            
-    MaterialCreateInfo *mci=new MaterialCreateInfo(c);
+{
+    mci=new MaterialCreateInfo(c);
+
+    cfg=c;
 }
 
-Std2DMaterial::~Std2DMaterial()
+bool Std2DMaterial::CreateVertexShader(ShaderCreateInfoVertex *vsc)
 {
-    delete mci;
-}
+    if(!RangeCheck(cfg->coordinate_system))
+        return(false);
 
-bool Std2DMaterial::CreateVertexShader(ShaderCreateInfoVertex *vs)
-{
-}
+    vsc->AddInput(VAT_VEC2,VAN::Position);
 
-bool Std2DMaterial::CreateFragmentShader(ShaderCreateInfoFragment *fs)
-{
+    if(cfg->local_to_world)
+    {
+        vsc->AddLocalToWorld();
+        vsc->AddFunction(func::GetLocalToWorld);
+
+        vsc->AddFunction(func::GetPosition2DL2W[size_t(cfg->coordinate_system)]);
+    }
+    else
+        vsc->AddFunction(func::GetPosition2D[size_t(cfg->coordinate_system)]);
+
+    if(cfg->coordinate_system==CoordinateSystem2D::Ortho)
+    {
+        mci->AddUBO(VK_SHADER_STAGE_VERTEX_BIT,
+                    DescriptorSetType::Global,
+                    SBS_ViewportInfo);
+    }
+
+    return(true);
 }
     
-bool Std2DMaterial::Create()
+MaterialCreateInfo *Std2DMaterial::Create()
 {
+    if(mci->hasVertex())
+        if(!CreateVertexShader(mci->GetVS()))
+            return(nullptr);
+
+    if(mci->hasGeometry())
+        if(!CreateGeometryShader(mci->GetGS()))
+            return(nullptr);
+
+    if(mci->hasFragment())
+        if(!CreateFragmentShader(mci->GetFS()))
+            return(nullptr);
+
+    if(!mci->CreateShader())
+        return(nullptr);
+
+    return(mci);
 }
 STD_MTL_NAMESPACE_END
diff --git a/src/ShaderGen/2d/Std2DMaterial.h b/src/ShaderGen/2d/Std2DMaterial.h
index c08f0dd5..4a5244e0 100644
--- a/src/ShaderGen/2d/Std2DMaterial.h
+++ b/src/ShaderGen/2d/Std2DMaterial.h
@@ -7,6 +7,7 @@ namespace hgl
     namespace graph
     {
         class ShaderCreateInfoVertex;
+        class ShaderCreateInfoGeometry;
         class ShaderCreateInfoFragment;
 
         namespace mtl
@@ -18,21 +19,22 @@ namespace hgl
             {
             protected:
 
-                Material2DConfig *cfg;
+                const Material2DConfig *cfg;
 
                 MaterialCreateInfo *mci;
 
             protected:
 
-                virtual bool CreateVertexShader(ShaderCreateInfoVertex *)=0;
+                virtual bool CreateVertexShader(ShaderCreateInfoVertex *);
+                virtual bool CreateGeometryShader(ShaderCreateInfoGeometry *){return false;}
                 virtual bool CreateFragmentShader(ShaderCreateInfoFragment *)=0;
 
             public:
 
                 Std2DMaterial(const Material2DConfig *);
-                virtual ~Std2DMaterial();
+                virtual ~Std2DMaterial()=default;
     
-                virtual bool Create()=0;
+                virtual MaterialCreateInfo *Create();
             };//class Std2DMaterial
         }//namespace mtl
     }//namespace graph
diff --git a/src/ShaderGen/2d/VertexColor2D.cpp b/src/ShaderGen/2d/VertexColor2D.cpp
index 3c16295e..36d82597 100644
--- a/src/ShaderGen/2d/VertexColor2D.cpp
+++ b/src/ShaderGen/2d/VertexColor2D.cpp
@@ -1,88 +1,56 @@
-#include<hgl/graph/mtl/2d/VertexColor2D.h>
-#include<hgl/graph/mtl/2d/Material2DConfig.h>
-#include<hgl/graph/VKMaterial.h>
-#include<hgl/graph/VKDevice.h>
+#include"Std2DMaterial.h"
 #include<hgl/shadergen/MaterialCreateInfo.h>
-#include<hgl/graph/mtl/UBOCommon.h>
-#include"common/MFCommon.h"
 
 STD_MTL_NAMESPACE_BEGIN
-MaterialCreateInfo *CreateVertexColor2D(const Material2DConfig *cfg)
+namespace
 {
-    if(!cfg)return(nullptr);
+    constexpr const char vs_main[]=R"(
+void main()
+{
+    Output.Color=Color;
 
-    RANGE_CHECK_RETURN_NULLPTR(cfg->coordinate_system)
+    gl_Position=GetPosition2D();
+})";
 
-    MaterialCreateInfo *mci=new MaterialCreateInfo(cfg);
-
-    AnsiString sfComputePosition;
-
-    if(cfg->coordinate_system==CoordinateSystem2D::Ortho)
-    {    
-        mci->AddUBO(VK_SHADER_STAGE_VERTEX_BIT,
-                    DescriptorSetType::Global,
-                    SBS_ViewportInfo);
-
-        sfComputePosition="vec4 ComputePosition(vec4 pos){return viewport.ortho_matrix*pos;}";
-    }
-    else
-    if(cfg->coordinate_system==CoordinateSystem2D::ZeroToOne)
-    {
-        sfComputePosition="vec4 ComputePosition(vec4 pos){return vec4(pos.xy*2-1,pos.z,pos.w);}";
-    }
-    else
-    {
-        sfComputePosition="vec4 ComputePosition(vec4 pos){return pos;}";
-    }
-
-    //vertex部分
-    {
-        ShaderCreateInfoVertex *vsc=mci->GetVS();
-
-        vsc->AddOutput(VAT_VEC4,"Color");
-
-        vsc->AddInput(VAT_VEC2,VAN::Position);
-        vsc->AddInput(VAT_VEC4,VAN::Color);
-
-        vsc->AddFunction(sfComputePosition);
-
-        AnsiString main_codes="void main()\n{\n\tOutput.Color=Color;\n";
-
-        if(cfg->local_to_world)
-        {
-            vsc->AddLocalToWorld();
-            
-            vsc->AddFunction(mtl::func::GetLocalToWorld);
-
-            main_codes+="\tvec4 pos=GetLocalToWorld()*vec4(Position,0,1);\n";
-        }
-        else
-        {
-            main_codes+="\tvec4 pos=vec4(Position,0,1);\n";
-        }
-
-        main_codes+="\tgl_Position=ComputePosition(pos);\n}";
-
-        vsc->AddFunction(main_codes);
-    }
-
-    //fragment部分
-    {
-        ShaderCreateInfoFragment *fsc=mci->GetFS();
-
-        fsc->AddOutput(VAT_VEC4,"Color");
-
-        fsc->AddFunction(R"(
+    constexpr const char fs_main[]=R"(
 void main()
 {
     Color=Input.Color;
-})");
-    }
+})";
 
-    if(mci->CreateShader())
-        return mci;
+    class MaterialVertexColor2D:public Std2DMaterial
+    {
+    public:
 
-    delete mci;
-    return(nullptr);
+        using Std2DMaterial::Std2DMaterial;
+        ~MaterialVertexColor2D()=default;
+
+        bool CreateVertexShader(ShaderCreateInfoVertex *vsc) override
+        {
+            if(!Std2DMaterial::CreateVertexShader(vsc))
+                return(false);
+
+            vsc->AddOutput(VAT_VEC4,"Color");
+            vsc->AddInput(VAT_VEC4,VAN::Color);
+
+            vsc->AddFunction(vs_main);
+            return(true);
+        }
+
+        bool CreateFragmentShader(ShaderCreateInfoFragment *fsc) override
+        {
+            fsc->AddOutput(VAT_VEC4,"Color");
+
+            fsc->AddFunction(fs_main);
+            return(true);
+        }
+    };//class MaterialVertexColor2D:public Std2DMaterial
+}//namespace
+
+MaterialCreateInfo *CreateVertexColor2D(const Material2DConfig *cfg)
+{
+    MaterialVertexColor2D mvc2d(cfg);
+
+    return mvc2d.Create();
 }
 STD_MTL_NAMESPACE_END
diff --git a/src/ShaderGen/MaterialCreateInfo.cpp b/src/ShaderGen/MaterialCreateInfo.cpp
index 9165695c..498dbc98 100644
--- a/src/ShaderGen/MaterialCreateInfo.cpp
+++ b/src/ShaderGen/MaterialCreateInfo.cpp
@@ -1,6 +1,6 @@
 #include<hgl/shadergen/MaterialCreateInfo.h>
 #include<hgl/shadergen/ShaderDescriptorInfo.h>
-#include"common/UBOCommon.h"
+#include<hgl/graph/mtl/UBOCommon.h>
 
 using namespace hgl;
 using namespace hgl::graph;
diff --git a/src/ShaderGen/common/MFGetPosition.h b/src/ShaderGen/common/MFGetPosition.h
index d8133c41..d2572f79 100644
--- a/src/ShaderGen/common/MFGetPosition.h
+++ b/src/ShaderGen/common/MFGetPosition.h
@@ -7,19 +7,37 @@ namespace func
 {
     constexpr const char *GetPosition2D[size_t(CoordinateSystem2D::RANGE_SIZE)]=
     {
-        R"(vec4 GetPosition2D(vec4 pos)
+        R"(vec4 GetPosition2D()
 {
-    return pos;
+    return vec4(Position,0,1);
 })",
 
-R"(vec4 GetPosition2D(vec4 pos)
+R"(vec4 GetPosition2D()
 {
-    return vec4(pos.xy*2-1,pos.z,pos.w);
+    return vec4(Position.xy*2-1,0,1);
 })",
 
-R"(vec4 GetPosition2D(vec4 pos)
+R"(vec4 GetPosition2D()
 {
-    return viewport.ortho_matrix*pos;
+    return viewport.ortho_matrix*vec4(Position,0,1);
+})"
+    };
+
+    constexpr const char *GetPosition2DL2W[size_t(CoordinateSystem2D::RANGE_SIZE)]=
+    {
+        R"(vec4 GetPosition2D()
+{
+    return GetLocalToWorld()*vec4(Position,0,1);
+})",
+
+R"(vec4 GetPosition2D()
+{
+    return GetLocalToWorld()*vec4(Position.xy*2-1,0,1);
+})",
+
+R"(vec4 GetPosition2D()
+{
+    return GetLocalToWorld()*viewport.ortho_matrix*vec4(Position,0,1);
 })"
     };
 }//namespace func