diff --git a/inc/hgl/graph/mtl/3d/Material3DCreateConfig.h b/inc/hgl/graph/mtl/3d/Material3DCreateConfig.h
index 7fb0162e..fce19ae0 100644
--- a/inc/hgl/graph/mtl/3d/Material3DCreateConfig.h
+++ b/inc/hgl/graph/mtl/3d/Material3DCreateConfig.h
@@ -11,6 +11,8 @@ struct Material3DCreateConfig:public MaterialCreateConfig
 
     VAT                 position_format;        ///<position格式
 
+//    bool                reverse_depth;          ///<使用反向深度
+
 public:
 
     Material3DCreateConfig(const GPUDeviceAttribute *da,const AnsiString &name,const Prim &p):MaterialCreateConfig(da,name,p)
@@ -22,10 +24,12 @@ public:
         local_to_world=false;
 
         position_format=VAT_VEC3;
+
+//        reverse_depth=false;
     }
 };//struct Material3DCreateConfig:public MaterialCreateConfig
 
-//MaterialCreateInfo *CreateVertexColor2D(const Material2DCreateConfig *);
+MaterialCreateInfo *CreateVertexColor3D(const Material3DCreateConfig *);
 //MaterialCreateInfo *CreatePureColor2D(const Material2DCreateConfig *);
 //MaterialCreateInfo *CreatePureTexture2D(const Material2DCreateConfig *);
 //MaterialCreateInfo *CreateRectTexture2D(Material2DCreateConfig *);
diff --git a/inc/hgl/graph/mtl/MaterialConfig.h b/inc/hgl/graph/mtl/MaterialConfig.h
index 6bb67044..42e4ae4f 100644
--- a/inc/hgl/graph/mtl/MaterialConfig.h
+++ b/inc/hgl/graph/mtl/MaterialConfig.h
@@ -5,6 +5,7 @@
 #include<hgl/type/String.h>
 #include<hgl/graph/RenderTargetOutputConfig.h>
 #include<hgl/graph/VK.h>
+#include<hgl/graph/mtl/SamplerName.h>
 
 STD_MTL_NAMESPACE_BEGIN
 class MaterialCreateInfo;
diff --git a/src/ShaderGen/3d/Std3DMaterial.cpp b/src/ShaderGen/3d/Std3DMaterial.cpp
index 27013a37..3189b00c 100644
--- a/src/ShaderGen/3d/Std3DMaterial.cpp
+++ b/src/ShaderGen/3d/Std3DMaterial.cpp
@@ -22,7 +22,10 @@ bool Std3DMaterial::CustomVertexShader(ShaderCreateInfoVertex *vsc)
         mci->SetLocalToWorld(VK_SHADER_STAGE_ALL_GRAPHICS);
 
         vsc->AddAssign();
+        vsc->AddFunction(func::GetPosition3DL2W);
     }
+    else
+        vsc->AddFunction(func::GetPosition3D);
 
     mci->AddUBO(VK_SHADER_STAGE_VERTEX_BIT,
                 DescriptorSetType::Global,
diff --git a/src/ShaderGen/common/MFGetPosition.h b/src/ShaderGen/common/MFGetPosition.h
index 7e5dbeec..066d4f7b 100644
--- a/src/ShaderGen/common/MFGetPosition.h
+++ b/src/ShaderGen/common/MFGetPosition.h
@@ -52,5 +52,19 @@ vec4 GetPosition2D()
 }
 )"
     };
+
+    constexpr const char *GetPosition3D=R"(
+vec4 GetPosition3D()
+{
+    return vec4(Position,1);
+}
+)";
+
+    constexpr const char *GetPosition3DL2W=R"(
+vec4 GetPosition3D()
+{
+    return GetLocalToWorld()*vec4(Position,1);
+}
+)";
 }//namespace func
 STD_MTL_NAMESPACE_END