diff --git a/CMSceneGraph b/CMSceneGraph
index c4823cd3..1e711048 160000
--- a/CMSceneGraph
+++ b/CMSceneGraph
@@ -1 +1 @@
-Subproject commit c4823cd334a539362fc2cf2d0b49e299bb8ce9b4
+Subproject commit 1e71104806a845a3a81414d2f2a05ea2e29c5d2b
diff --git a/inc/hgl/graph/VKShaderModule.h b/inc/hgl/graph/VKShaderModule.h
index 330b0111..0889dea6 100644
--- a/inc/hgl/graph/VKShaderModule.h
+++ b/inc/hgl/graph/VKShaderModule.h
@@ -58,7 +58,7 @@ public:
 class VertexShaderModule:public ShaderModule
 {
     uint32_t attr_count;
-    VertexAttribType *type_list;
+    VAT *type_list;
     const char **name_list;
     ShaderStage **ssi_list;
 
diff --git a/inc/hgl/shadergen/MaterialDescriptorManager.h b/inc/hgl/shadergen/MaterialDescriptorManager.h
index d4e0b550..d02207cf 100644
--- a/inc/hgl/shadergen/MaterialDescriptorManager.h
+++ b/inc/hgl/shadergen/MaterialDescriptorManager.h
@@ -24,47 +24,49 @@ class MaterialDescriptorManager
 
         ObjectMap<AnsiString,ShaderDescriptor>  descriptor_map;
 
-        ObjectList<UBODescriptor>               ubo_list;
-        ObjectList<SamplerDescriptor>           sampler_list;
-
     public:
 
-        const ShaderDescriptor *AddDescriptor(VkShaderStageFlagBits ssb,ShaderDescriptor *new_sd);                       ///<添加一个描述符，如果它本身存在，则返回false
+        ShaderDescriptor *AddDescriptor(VkShaderStageFlagBits ssb,ShaderDescriptor *new_sd);                       ///<添加一个描述符，如果它本身存在，则返回false
     };
 
     using ShaderDescriptorSetArray=ShaderDescriptorSet[size_t(DescriptorSetType::RANGE_SIZE)];
 
     ShaderDescriptorSetArray desc_set_array;
 
-    Map<AnsiString,AnsiString> ubo_code_map;
+    Map<AnsiString,AnsiString> ubo_struct_map;
+    Map<AnsiString,UBODescriptor *> ubo_map;
+    Map<AnsiString,SamplerDescriptor *> sampler_map;
 
 public:
     
     MaterialDescriptorManager();
     ~MaterialDescriptorManager()=default;
 
-    bool AddUBOCode(const AnsiString &name,const AnsiString &code)
+    bool AddUBOStruct(const AnsiString &name,const AnsiString &code)
     {
-        if(ubo_code_map.KeyExist(name))
+        if(ubo_struct_map.KeyExist(name))
             return(false);
 
-        ubo_code_map.Add(name,code);
+        ubo_struct_map.Add(name,code);
         return(true);
     }
 
-    bool GetUBOCode(const AnsiString &name,AnsiString &code) const
+    bool GetUBOStruct(const AnsiString &name,AnsiString &code) const
     {
-        return(ubo_code_map.Get(name,code));
+        return(ubo_struct_map.Get(name,code));
     }
 
-    bool hasUBOCode(const AnsiString &name) const
+    bool hasUBOStruct(const AnsiString &name) const
     {
-        return(ubo_code_map.KeyExist(name));
+        return(ubo_struct_map.KeyExist(name));
     }
 
     const UBODescriptor *AddUBO(VkShaderStageFlagBits ssb,DescriptorSetType set_type,UBODescriptor *sd);
     const SamplerDescriptor *AddSampler(VkShaderStageFlagBits ssb,DescriptorSetType set_type,SamplerDescriptor *sd);
 
+    UBODescriptor *GetUBO(const AnsiString &name);
+    SamplerDescriptor *GetSampler(const AnsiString &name);
+
     const DescriptorSetType GetSetType(const AnsiString &)const;
 
     void Resort();      //排序产生set号与binding号
diff --git a/src/SceneGraph/Vulkan/VKShaderModule.cpp b/src/SceneGraph/Vulkan/VKShaderModule.cpp
index 8b330450..8f172903 100644
--- a/src/SceneGraph/Vulkan/VKShaderModule.cpp
+++ b/src/SceneGraph/Vulkan/VKShaderModule.cpp
@@ -49,12 +49,12 @@ VertexShaderModule::VertexShaderModule(VkDevice dev,VkPipelineShaderStageCreateI
     attr_count=stage_input_list.GetCount();
     ssi_list=stage_input_list.GetData();
     name_list=new const char *[attr_count];
-    type_list=new VertexAttribType[attr_count];
+    type_list=new VAT[attr_count];
     
     for(uint i=0;i<attr_count;i++)
     {
         name_list[i]            =ssi_list[i]->name;
-        type_list[i].basetype   =VertexAttribType::BaseType(ssi_list[i]->basetype);
+        type_list[i].basetype   =VATBaseType(ssi_list[i]->basetype);
         type_list[i].vec_size   =ssi_list[i]->vec_size;
     }
 }
@@ -70,7 +70,7 @@ VertexShaderModule::~VertexShaderModule()
     delete[] name_list;
 }
 
-const VkFormat GetVulkanFormat(const VertexAttribType::BaseType &base_type,const uint vec_size);    //VertexAttrib.cpp
+const VkFormat GetVulkanFormat(const VATBaseType &base_type,const uint vec_size);    //VertexAttrib.cpp
 
 VIL *VertexShaderModule::CreateVIL(const VILConfig *cfg)
 {
@@ -100,7 +100,7 @@ VIL *VertexShaderModule::CreateVIL(const VILConfig *cfg)
 
         if(!cfg||!cfg->Get((*si)->name,vac))
         {
-            attr->format    =GetVulkanFormat(VertexAttribType::BaseType((*si)->basetype),(*si)->vec_size);
+            attr->format    =GetVulkanFormat(VATBaseType((*si)->basetype),(*si)->vec_size);
 
             //if(memcmp((*si)->name.c_str(),"Inst_",5)==0)                //不可以使用CaseComp("Inst_",5)会被认为是比较一个5字长的字符串，而不是只比较5个字符
             //    bind->inputRate =VK_VERTEX_INPUT_RATE_INSTANCE;
@@ -112,7 +112,7 @@ VIL *VertexShaderModule::CreateVIL(const VILConfig *cfg)
             if(vac.format!=PF_UNDEFINED)
                 attr->format    =vac.format;
             else                
-                attr->format    =GetVulkanFormat(VertexAttribType::BaseType((*si)->basetype),(*si)->vec_size);
+                attr->format    =GetVulkanFormat(VATBaseType((*si)->basetype),(*si)->vec_size);
 
             bind->inputRate =vac.instance?VK_VERTEX_INPUT_RATE_INSTANCE:VK_VERTEX_INPUT_RATE_VERTEX;
         }
diff --git a/src/ShaderGen/MaterialCreater.cpp b/src/ShaderGen/MaterialCreater.cpp
index e843212c..b2d7debd 100644
--- a/src/ShaderGen/MaterialCreater.cpp
+++ b/src/ShaderGen/MaterialCreater.cpp
@@ -31,6 +31,55 @@ public:
     ~ShaderCreater()
     {
     }
+
+    int AddInput(const VAT &type,const AnsiString &name)
+    {
+        ShaderStage *ss=new ShaderStage;
+
+        hgl::strcpy(ss->name,sizeof(ss->name),name.c_str());
+
+        ss->basetype=(uint8) type.basetype;
+        ss->vec_size=        type.vec_size;
+
+        return sdm.AddInput(ss);
+    }
+
+    int AddInput(const AnsiString &type,const AnsiString &name)
+    {
+        VAT vat;
+
+        if(!ParseVertexAttribType(&vat,type))
+            return(-2);
+
+        return AddInput(vat,name);
+    }
+
+    int AddOutput(const VAT &type,const AnsiString &name)
+    {
+        ShaderStage *ss=new ShaderStage;
+
+        hgl::strcpy(ss->name,sizeof(ss->name),name.c_str());
+
+        ss->basetype=(uint8) type.basetype;
+        ss->vec_size=        type.vec_size;
+
+        return sdm.AddOutput(ss);
+    }
+
+    int AddOutput(const AnsiString &type,const AnsiString &name)
+    {
+        VAT vat;
+
+        if(!ParseVertexAttribType(&vat,type))
+            return(-2);
+
+        return AddOutput(vat,name);
+    }
+
+    bool AddFunction(const AnsiString &return_type,const AnsiString &func_name,const AnsiString &param_list,const AnsiString &codes)
+    {
+        //return sdm.AddFunction(return_type,func_name,param_list,code);
+    }
 };
 
 class ShaderCreaterMap:public ObjectMap<VkShaderStageFlagBits,ShaderCreater>
@@ -55,25 +104,10 @@ public:
 
 class VertexShaderCreater:public ShaderCreater
 {
-    List<ShaderStage> input;
-
 public:
 
     VertexShaderCreater():ShaderCreater(VK_SHADER_STAGE_VERTEX_BIT){}
     ~VertexShaderCreater()=default;
-
-    int AddInput(const AnsiString &name,const VertexAttribType &type)
-    {
-        ShaderStage ss;
-
-        hgl::strcpy(ss.name,sizeof(ss.name),name.c_str());
-
-        ss.location=input.GetCount();
-        ss.basetype=(uint8) type.basetype;
-        ss.vec_size=        type.vec_size;
-
-        return input.Add(ss);
-    }
 };
 
 class GeometryShaderCreater:public ShaderCreater
@@ -117,9 +151,13 @@ public:
     bool hasFragment()const{return hasShader(VK_SHADER_STAGE_FRAGMENT_BIT);}
 //    bool hasCompute ()const{return hasShader(VK_SHADER_STAGE_COMPUTE_BIT);}
 
+    VertexShaderCreater *   GetVS(){return vert;}
+    GeometryShaderCreater * GetGS(){return geom;}
+    FragmentShaderCreater * GetFS(){return frag;}
+
 public:
 
-    MaterialCreater(const uint rc,const uint32 ss)
+    MaterialCreater(const uint rc,const uint32 ss=VK_SHADER_STAGE_VERTEX_BIT|VK_SHADER_STAGE_FRAGMENT_BIT)
     {
         rt_count=rc;
         shader_stage=ss;
@@ -133,19 +171,12 @@ public:
     {
     }
 
-    int AddVertexInput(const AnsiString &name,const VertexAttribType &type)
-    {
-        if(!vert)return(-1);
-
-        return vert->AddInput(name,type);
-    }
-
-    bool AddUBOCode(const AnsiString &ubo_typename,const AnsiString &codes)
+    bool AddUBOStruct(const AnsiString &ubo_typename,const AnsiString &codes)
     {
         if(ubo_typename.IsEmpty()||codes.IsEmpty())
             return(false);
 
-        return MDM.AddUBOCode(ubo_typename,codes);
+        return MDM.AddUBOStruct(ubo_typename,codes);
     }
 
     bool AddUBO(const VkShaderStageFlagBits flag_bits,const DescriptorSetType set_type,const AnsiString &type_name,const AnsiString &name)
@@ -153,7 +184,7 @@ public:
         if(!shader_map.KeyExist(flag_bits))
             return(false);
 
-        if(!MDM.hasUBOCode(type_name))
+        if(!MDM.hasUBOStruct(type_name))
             return(false);
 
         ShaderCreater *sc=shader_map[flag_bits];
@@ -161,12 +192,26 @@ public:
         if(!sc)
             return(false);
 
-        UBODescriptor *ubo=new UBODescriptor();
+        UBODescriptor *ubo=MDM.GetUBO(name);
 
-        ubo->type=type_name;
-        ubo->name=name;
+        if(ubo)
+        {
+            if(ubo->type!=type_name)
+                return(false);
 
-        return sc->sdm.AddUBO(set_type,MDM.AddUBO(flag_bits,set_type,ubo));
+            ubo->stage_flag|=flag_bits;
+            
+            return sc->sdm.AddUBO(set_type,ubo);
+        }
+        else
+        {
+            ubo=new UBODescriptor();
+
+            ubo->type=type_name;
+            ubo->name=name;
+
+            return sc->sdm.AddUBO(set_type,MDM.AddUBO(flag_bits,set_type,ubo));
+        }
     }
 
     bool AddSampler(const VkShaderStageFlagBits flag_bits,const DescriptorSetType set_type,const SamplerType &st,const AnsiString &name)
@@ -181,19 +226,85 @@ public:
         if(!sc)
             return(false);
 
-        SamplerDescriptor *sampler=new SamplerDescriptor();
+        SamplerDescriptor *sampler=MDM.GetSampler(name);
 
-        sampler->type=GetSamplerTypeName(st);
-        sampler->name=name;
+        AnsiString st_name=GetSamplerTypeName(st);
 
-        return sc->sdm.AddSampler(set_type,MDM.AddSampler(flag_bits,set_type,sampler));
+        if(sampler)
+        {
+            if(sampler->type!=st_name)
+                return(false);
+
+            sampler->stage_flag|=flag_bits;
+
+            return sc->sdm.AddSampler(set_type,sampler);
+        }
+        else
+        {
+            sampler=new SamplerDescriptor();
+
+            sampler->type=st_name;
+            sampler->name=name;
+
+            return sc->sdm.AddSampler(set_type,MDM.AddSampler(flag_bits,set_type,sampler));
+        }
     }
 };//class MaterialCreater
 
-int main()
+#ifdef _DEBUG
+
+bool PureColorMaterial()
 {
-    MaterialCreater mc(1,VK_SHADER_STAGE_VERTEX_BIT|VK_SHADER_STAGE_FRAGMENT_BIT);
+    MaterialCreater mc(1);                                  //一个新材质，1个RT输出，默认使用Vertex/Fragment shader
+
+    //vertex部分
+    {
+        VertexShaderCreater *vsc=mc.GetVS();                //获取vertex shader creater
+
+        vsc->AddInput("vec3","Position");                   //添加一个vec3类型的position属性输入
+
+        //以下代码会被合并成 vec3 GetPosition(/**/){return Position;}
+        vsc->AddFunction("vec3","GetPosition","/**/","return Position;");
+    }
+
+    //添加一个名称为ColorMaterial的UBO定义,其内部有一个vec4 color的属性
+    //该代码会被展开为
+    /*
+        struct ColorMaterial
+        {
+            vec4 color;
+        };
+     */
+    mc.AddUBOStruct("ColorMaterial","vec4 color;");
+
+    //添加一个UBO，该代码会被展开为
+    /*
+        layout(set=SET_PerMI,binding=?) uniform ColorMaterial mtl;
+    */
+    mc.AddUBO(  VK_SHADER_STAGE_FRAGMENT_BIT,               //这个UBO出现在fragment shader
+                DescriptorSetType::PerMaterialInstance,     //它属于材质实例合集
+                "ColorMaterial",                            //UBO名称为ColorMaterial
+                "mtl");                                     //UBO变量名称为mtl
+
+    //fragment部分
+    {
+        FragmentShaderCreater *fsc=mc.GetFS();              //获取fragment shader creater
+
+        //以下代码会被合并成 vec4 GetColor(/**/){return mtl.color;}
+        fsc->AddFunction("vec4","GetColor","/**/","return mtl.color;");
+
+        fsc->AddOutput("vec4","Color");                     //添加一个vec4类型的color属性输出
+        
+    }
+
+    return(false);
+}
+
+int MaterialCreaterTest()
+{
+        
 
     return 0;
 }
+#endif//_DEBUG
 SHADERGEN_NAMESPACE_END
diff --git a/src/ShaderGen/MaterialDescriptorManager.cpp b/src/ShaderGen/MaterialDescriptorManager.cpp
index d16a74d1..f973d3df 100644
--- a/src/ShaderGen/MaterialDescriptorManager.cpp
+++ b/src/ShaderGen/MaterialDescriptorManager.cpp
@@ -28,7 +28,7 @@ const DescriptorSetType MaterialDescriptorManager::GetSetType(const AnsiString &
 /**
 * 添加一个描述符，如果它本身存在，则返回false
 */
-const ShaderDescriptor *MaterialDescriptorManager::ShaderDescriptorSet::AddDescriptor(VkShaderStageFlagBits ssb,ShaderDescriptor *new_sd)
+ShaderDescriptor *MaterialDescriptorManager::ShaderDescriptorSet::AddDescriptor(VkShaderStageFlagBits ssb,ShaderDescriptor *new_sd)
 {
     ShaderDescriptor *sd;
     
@@ -58,11 +58,9 @@ const UBODescriptor *MaterialDescriptorManager::AddUBO(VkShaderStageFlagBits ssb
 
     ShaderDescriptorSet *sds=desc_set_array+(size_t)set_type;
 
-    const ShaderDescriptor *obj=sds->AddDescriptor(ssb,sd);
+    ShaderDescriptor *obj=sds->AddDescriptor(ssb,sd);
     
-    if(!obj)return(nullptr);
-
-    sds->ubo_list.Add((UBODescriptor *)obj);
+    ubo_map.Add(obj->name,(UBODescriptor *)obj);
     return((UBODescriptor *)obj);
 }
 
@@ -73,14 +71,32 @@ const SamplerDescriptor *MaterialDescriptorManager::AddSampler(VkShaderStageFlag
     
     ShaderDescriptorSet *sds=desc_set_array+(size_t)set_type;
 
-    const ShaderDescriptor *obj=sds->AddDescriptor(ssb,sd);
+    ShaderDescriptor *obj=sds->AddDescriptor(ssb,sd);
 
-    if(!obj)return(nullptr);
-
-    sds->sampler_list.Add((SamplerDescriptor *)obj);
+    sampler_map.Add(obj->name,(SamplerDescriptor *)obj);
     return((SamplerDescriptor *)obj);
 }
 
+UBODescriptor *MaterialDescriptorManager::GetUBO(const AnsiString &name)
+{
+    UBODescriptor *sd;
+
+    if(ubo_map.Get(name,sd))
+        return(sd);
+
+    return(nullptr);
+}
+
+SamplerDescriptor *MaterialDescriptorManager::GetSampler(const AnsiString &name)
+{
+    SamplerDescriptor *sd;
+
+    if(sampler_map.Get(name,sd))
+        return(sd);
+
+    return(nullptr);
+}
+
 void MaterialDescriptorManager::Resort()
 {
     //重新生成set/binding