diff --git a/inc/hgl/graph/VKMaterialDescriptorManager.h b/inc/hgl/graph/VKMaterialDescriptorManager.h
index 331890df..5e420e9b 100644
--- a/inc/hgl/graph/VKMaterialDescriptorManager.h
+++ b/inc/hgl/graph/VKMaterialDescriptorManager.h
@@ -5,11 +5,14 @@
 #include<hgl/graph/VKShaderDescriptorSet.h>
 
 VK_NAMESPACE_BEGIN
+using BindingMap=Map<AnsiString,int>;
+using BindingMapArray=BindingMap[VK_DESCRIPTOR_TYPE_RANGE_SIZE];
+
 class MaterialDescriptorManager
 {
     UTF8String mtl_name;
 
-    Map<AnsiString,int> binding_map[DESCRIPTOR_SET_TYPE_COUNT][VK_DESCRIPTOR_TYPE_RANGE_SIZE];
+    BindingMapArray binding_map[DESCRIPTOR_SET_TYPE_COUNT];
 
 private:
 
@@ -32,6 +35,11 @@ public:
         return dsl_ci[size_t(set_type)].bindingCount;
     }
 
+    const BindingMapArray &GetBindingMap(const DescriptorSetType &set_type)const
+    {
+        return binding_map[size_t(set_type)];
+    }
+
     const int GetBinding(const DescriptorSetType &set_type,const VkDescriptorType &desc_type,const AnsiString &name)const;
 
     const int GetUBO            (const DescriptorSetType &set_type,const AnsiString &name,bool dynamic)const{return GetBinding(set_type,dynamic?VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,name);}
diff --git a/inc/hgl/graph/VKMaterialParameters.h b/inc/hgl/graph/VKMaterialParameters.h
index 6b575bd0..dc478f12 100644
--- a/inc/hgl/graph/VKMaterialParameters.h
+++ b/inc/hgl/graph/VKMaterialParameters.h
@@ -31,6 +31,7 @@ public:
     const   VkDescriptorSet     GetVkDescriptorSet  ()const{return descriptor_set->GetDescriptorSet();}
 
     const   uint32_t            GetDescriptorCount  ()const{return desc_manager->GetBindCount(set_type);}   ///<获取总共需要绑定的描述符数量
+    const   BindingMapArray &   GetBindingMap       ()const{return desc_manager->GetBindingMap(set_type);}
 
     const   uint32_t            GetDynamicCount     ()const     //返回动态ubo/ssbo总量
     {