diff --git a/CMSceneGraph b/CMSceneGraph
index af89ab16..f207c0b8 160000
--- a/CMSceneGraph
+++ b/CMSceneGraph
@@ -1 +1 @@
-Subproject commit af89ab168343de511796f400d17c6bc14836f691
+Subproject commit f207c0b844e4c8474cdd4a94cd276251025f23ed
diff --git a/example/Vulkan/second_triangle.cpp b/example/Vulkan/second_triangle.cpp
index 4533abb9..8f254faf 100644
--- a/example/Vulkan/second_triangle.cpp
+++ b/example/Vulkan/second_triangle.cpp
@@ -46,7 +46,7 @@ private:
         if(!material_instance)
             return(false);
 
-        BindCameraUBO(material_instance);
+        db->BindGlobalDescriptor(material_instance);
             
 //        pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
         pipeline=CreatePipeline(material_instance,InlinePipeline::Solid2D,Prim::Triangles);     //等同上一行，为Framework重载，默认使用swapchain的render target
diff --git a/inc/hgl/graph/mtl/2d/VertexColor2D.h b/inc/hgl/graph/mtl/2d/VertexColor2D.h
new file mode 100644
index 00000000..8f9506dc
--- /dev/null
+++ b/inc/hgl/graph/mtl/2d/VertexColor2D.h
@@ -0,0 +1,19 @@
+#ifndef HGL_GRAPH_MTL_2D_VERTEX2D_INCLUDE
+#define HGL_GRAPH_MTL_2D_VERTEX2D_INCLUDE
+
+#include<hgl/graph/mtl/StdMaterial.h>
+
+namespace hgl
+{
+    namespace graph
+    {
+        class MaterialCreateInfo;
+
+        namespace mtl
+        {
+            MaterialCreateInfo *CreateVertexColor2D(const CoordinateSystem2D &);
+        }//namespace mtl
+    }//namespace graph
+}//namespace hgl
+
+#endif//HGL_GRAPH_MTL_2D_VERTEX2D_INCLUDE
diff --git a/inc/hgl/graph/mtl/2d/VertexColor2DNDC.h b/inc/hgl/graph/mtl/2d/VertexColor2DNDC.h
deleted file mode 100644
index 2d40d155..00000000
--- a/inc/hgl/graph/mtl/2d/VertexColor2DNDC.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef HGL_GRAPH_MTL_2D_VERTEX2DNDC_INCLUDE
-#define HGL_GRAPH_MTL_2D_VERTEX2DNDC_INCLUDE
-
-namespace hgl
-{
-    namespace graph
-    {
-        class MaterialCreateInfo;
-
-        namespace mtl
-        {
-            MaterialCreateInfo *CreateVertexColor2DNDC();
-        }//namespace mtl
-    }//namespace graph
-}//namespace hgl
-
-#endif//HGL_GRAPH_MTL_2D_VERTEX2DNDC_INCLUDE
diff --git a/inc/hgl/graph/mtl/StdMaterial.h b/inc/hgl/graph/mtl/StdMaterial.h
index 6834ff34..f4682687 100644
--- a/inc/hgl/graph/mtl/StdMaterial.h
+++ b/inc/hgl/graph/mtl/StdMaterial.h
@@ -1,6 +1,19 @@
-#pragma once
+#pragma once
 
 #define STD_MTL_NAMESPACE_BEGIN namespace hgl{namespace graph{namespace mtl{
 #define STD_MTL_NAMESPACE_END   }}}
 
 #define STD_MTL_NAMESPACE_USING using namespace hgl::graph::mtl
+
+enum class CoordinateSystem2D
+{
+    NDC,
+    ZeroToOne,          //左上角为0,0；右下角为1,1
+    Ortho               //左上角为0,0；右下角为(width-1),(height-1)
+};
+
+namespace GlobalShaderUBO
+{
+    constexpr const char ViewportInfo[]="ViewportInfo";
+    constexpr const char CameraInfo[]="CameraInfo";
+}
diff --git a/src/ShaderGen/2d/VertexColor2DNDC.cpp b/src/ShaderGen/2d/VertexColor2D.cpp
similarity index 64%
rename from src/ShaderGen/2d/VertexColor2DNDC.cpp
rename to src/ShaderGen/2d/VertexColor2D.cpp
index 8b27e1dc..eb2675af 100644
--- a/src/ShaderGen/2d/VertexColor2DNDC.cpp
+++ b/src/ShaderGen/2d/VertexColor2D.cpp
@@ -1,15 +1,29 @@
 #include<hgl/graph/mtl/StdMaterial.h>
+#include<hgl/graph/mtl/2d/VertexColor2D.h>
 #include<hgl/graph/VKMaterial.h>
 #include<hgl/graph/VKDevice.h>
 #include<hgl/shadergen/MaterialCreateInfo.h>
 
 STD_MTL_NAMESPACE_BEGIN
-MaterialCreateInfo *CreateVertexColor2DNDC()
+MaterialCreateInfo *CreateVertexColor2D(const CoordinateSystem2D &cs)
 {
-    MaterialCreateInfo *mci=new MaterialCreateInfo("VertexColor2DNDC",      ///<名称，随便起
+    AnsiString mtl_name="VertexColor2D";
+
+    if(cs==CoordinateSystem2D::NDC)mtl_name+="NDC";else
+    if(cs==CoordinateSystem2D::ZeroToOne)mtl_name+="ZeroToOne";else
+    if(cs==CoordinateSystem2D::Ortho)mtl_name+="Ortho";else
+        return(nullptr);
+
+
+    MaterialCreateInfo *mci=new MaterialCreateInfo( mtl_name,               ///<名称
                                                     1,                      ///<最终一个RT输出
                                                     false);                 ///<无深度输出
 
+    if(cs==CoordinateSystem2D::Ortho)
+    {
+        mci->AddStruct(GlobalShaderUBO::ViewportInfo,"");
+    }
+
     //vertex部分
     {
         ShaderCreateInfoVertex *vsc=mci->GetVS();
diff --git a/src/ShaderGen/CMakeLists.txt b/src/ShaderGen/CMakeLists.txt
index 71987361..4d317f66 100644
--- a/src/ShaderGen/CMakeLists.txt
+++ b/src/ShaderGen/CMakeLists.txt
@@ -39,8 +39,8 @@ set(STD_MTL_HEADER_PATH  ${ROOT_INCLUDE_PATH}/hgl/graph/mtl)
 
 SET(STD_MTL_2D_HEADER_PATH ${STD_MTL_HEADER_PATH}/2d)
 
-SET(STD_MTL_2D_SOURCE_FILES	${STD_MTL_2D_HEADER_PATH}/VertexColor2DNDC.h
-                            2d/VertexColor2DNDC.cpp)
+SET(STD_MTL_2D_SOURCE_FILES	${STD_MTL_2D_HEADER_PATH}/VertexColor2D.h
+                            2d/VertexColor2D.cpp)
 
 SET(STANDARD_MATERIAL_SOURCE    ${STD_MTL_HEADER_PATH}/StdMaterial.h)