diff --git a/inc/hgl/graph/mtl/Material2DCreateConfig.h b/inc/hgl/graph/mtl/Material2DCreateConfig.h
index 67c563d8..93c1ff0e 100644
--- a/inc/hgl/graph/mtl/Material2DCreateConfig.h
+++ b/inc/hgl/graph/mtl/Material2DCreateConfig.h
@@ -1,7 +1,7 @@
 #pragma once
 
 #include<hgl/graph/mtl/MaterialLibrary.h>
-#include<hgl/graph/mtl/MaterialConfig.h>
+#include<hgl/graph/mtl/MaterialCreateConfig.h>
 #include<hgl/graph/CoordinateSystem.h>
 #include<hgl/graph/VertexAttrib.h>
 
@@ -51,6 +51,8 @@ public:
        
         return off;
     }
+
+    const AnsiString ToHashString() override;
 };//struct Material2DCreateConfig:public MaterialCreateConfig
 
 DEFINE_MATERIAL_FACTORY_CLASS(VertexColor2D,        const Material2DCreateConfig)
diff --git a/inc/hgl/graph/mtl/Material3DCreateConfig.h b/inc/hgl/graph/mtl/Material3DCreateConfig.h
index a4151b41..a84051ef 100644
--- a/inc/hgl/graph/mtl/Material3DCreateConfig.h
+++ b/inc/hgl/graph/mtl/Material3DCreateConfig.h
@@ -1,7 +1,7 @@
 #pragma once
 
 #include<hgl/graph/mtl/MaterialLibrary.h>
-#include<hgl/graph/mtl/MaterialConfig.h>
+#include<hgl/graph/mtl/MaterialCreateConfig.h>
 #include<hgl/graph/CoordinateSystem.h>
 #include<hgl/graph/VertexAttrib.h>
 
@@ -49,6 +49,8 @@ public:
 
         return off;
     }
+
+    const AnsiString ToHashString() override;
 };//struct Material3DCreateConfig:public MaterialCreateConfig
 
 DEFINE_MATERIAL_FACTORY_CLASS(VertexColor3D,    const Material3DCreateConfig);
diff --git a/inc/hgl/graph/mtl/MaterialConfig.h b/inc/hgl/graph/mtl/MaterialCreateConfig.h
similarity index 96%
rename from inc/hgl/graph/mtl/MaterialConfig.h
rename to inc/hgl/graph/mtl/MaterialCreateConfig.h
index 9d072147..a3e4a8eb 100644
--- a/inc/hgl/graph/mtl/MaterialConfig.h
+++ b/inc/hgl/graph/mtl/MaterialCreateConfig.h
@@ -52,5 +52,7 @@ public:
 
         return off;
     }
+
+    virtual const AnsiString ToHashString();
 };//struct MaterialCreateConfig
 STD_MTL_NAMESPACE_END
diff --git a/inc/hgl/shadergen/MaterialCreateInfo.h b/inc/hgl/shadergen/MaterialCreateInfo.h
index 90db7945..fc888305 100644
--- a/inc/hgl/shadergen/MaterialCreateInfo.h
+++ b/inc/hgl/shadergen/MaterialCreateInfo.h
@@ -6,7 +6,7 @@
 #include<hgl/shadergen/ShaderCreateInfoFragment.h>
 #include<hgl/shadergen/ShaderCreateInfoMap.h>
 #include<hgl/graph/RenderTargetOutputConfig.h>
-#include<hgl/graph/mtl/MaterialConfig.h>
+#include<hgl/graph/mtl/MaterialCreateConfig.h>
 #include<hgl/graph/mtl/ShaderBufferSource.h>
 #include<hgl/graph/VKSamplerType.h>
 
diff --git a/src/ShaderGen/MaterialCreateConfig.cpp b/src/ShaderGen/MaterialCreateConfig.cpp
new file mode 100644
index 00000000..6ae70ed0
--- /dev/null
+++ b/src/ShaderGen/MaterialCreateConfig.cpp
@@ -0,0 +1,72 @@
+#include<hgl/graph/mtl/Material2DCreateConfig.h>
+#include<hgl/graph/mtl/Material3DCreateConfig.h>
+#include<hgl/graph/VertexAttrib.h>
+
+STD_MTL_NAMESPACE_BEGIN
+const AnsiString MaterialCreateConfig::ToHashString()
+{
+    AnsiString hash;
+
+    char str[16];
+    char *p=str;
+
+    *p='M';++p;
+
+    if(material_instance){*p='I';++p;}
+
+    *p='_';++p;
+
+    *p='0'+rt_output.color;++p;
+
+    if(rt_output.depth){*p='D';++p;}
+    if(rt_output.stencil){*p='S';++p;}
+
+    *p='_';++p;
+
+    if(shader_stage_flag_bit&VK_SHADER_STAGE_VERTEX_BIT){*p='V';++p;}
+    if(shader_stage_flag_bit&VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT){*p='T';++p;}     //tc/te有一个就行了
+    if(shader_stage_flag_bit&VK_SHADER_STAGE_GEOMETRY_BIT){*p='G';++p;}
+    if(shader_stage_flag_bit&VK_SHADER_STAGE_FRAGMENT_BIT){*p='F';++p;}
+    if(shader_stage_flag_bit&VK_SHADER_STAGE_COMPUTE_BIT){*p='C';++p;}
+    if(shader_stage_flag_bit&VK_SHADER_STAGE_MESH_BIT_EXT){*p='M';++p;}     //mesh/task有一个就行了
+    *p='_';++p;
+
+    *p=0;
+
+    hash=p;
+    hash+=GetPrimName(prim);
+
+    return hash;
+}
+
+const AnsiString Material2DCreateConfig::ToHashString()
+{
+    AnsiString hash=MaterialCreateConfig::ToHashString();
+
+    hash+=GetCoordinateSystem2DName(coordinate_system);
+
+    if(local_to_world)
+        hash+="_L2W";
+
+    hash+="_";
+    hash+=GetVertexAttribName(&position_format);
+
+    return hash;
+}
+
+const AnsiString Material3DCreateConfig::ToHashString()
+{
+    AnsiString hash=MaterialCreateConfig::ToHashString();
+
+    if(camera)
+        hash+="_Camera";
+
+    if(local_to_world)
+        hash+="_L2W";
+
+    hash+="_";
+    hash+=GetVertexAttribName(&position_format);
+
+    return hash;
+}
+STD_MTL_NAMESPACE_END