diff --git a/example/Vulkan/second_triangle.cpp b/example/Vulkan/second_triangle.cpp
index e035a152..5ecb8c35 100644
--- a/example/Vulkan/second_triangle.cpp
+++ b/example/Vulkan/second_triangle.cpp
@@ -60,7 +60,7 @@ private:
         if(!material_instance)
             return(false);
 
-        db->BindGlobal(material_instance);
+        db->global_descriptor.Bind(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/example/common/VulkanAppFramework.h b/example/common/VulkanAppFramework.h
index b927f6a2..c90d17d5 100644
--- a/example/common/VulkanAppFramework.h
+++ b/example/common/VulkanAppFramework.h
@@ -142,7 +142,7 @@ public:
 
             ubo_vp_info=db->CreateUBO(sizeof(ViewportInfo),&vp_info);
 
-            db->AddGlobalUBO(GlobalDescriptor::ViewportInfo.name,ubo_vp_info);
+            db->global_descriptor.AddUBO(GlobalDescriptor::ViewportInfo.name,ubo_vp_info);
         }
 
         return(true);
diff --git a/inc/hgl/graph/VKDescriptorBindingManage.h b/inc/hgl/graph/VKDescriptorBindingManage.h
index 372fd92d..086ffd29 100644
--- a/inc/hgl/graph/VKDescriptorBindingManage.h
+++ b/inc/hgl/graph/VKDescriptorBindingManage.h
@@ -2,22 +2,30 @@
 #define HGL_GRAPH_DESCRIPTOR_BINDING_MANAGE_INCLUDE
 
 #include<hgl/type/Map.h>
+#include<hgl/graph/VKDescriptorSetType.h>
 namespace hgl
 {
     namespace graph
     {
         class DeviceBuffer;
         class Texture;
-        class MaterialParameters;
+        class MaterialInstance;
 
         class DescriptorBinding
         {
+            DescriptorSetType set_type;
+
             Map<AnsiString,DeviceBuffer *> ubo_map;
             Map<AnsiString,DeviceBuffer *> ssbo_map;
             Map<AnsiString,Texture *> texture_map;
 
         public:
 
+            DescriptorBinding(const DescriptorSetType &dst)
+            {
+                set_type=dst;
+            }
+
             bool AddUBO(const AnsiString &name,DeviceBuffer *buf)
             {
                 if(!buf)return(false);
@@ -84,7 +92,7 @@ namespace hgl
                 texture_map.DeleteByValue(tex);
             }
 
-            bool Bind(MaterialParameters *);
+            bool Bind(MaterialInstance *);
         };//class DescriptorBinding
     }//namespace graph
 }//namespace hgl
diff --git a/inc/hgl/graph/VKRenderResource.h b/inc/hgl/graph/VKRenderResource.h
index becfcd2e..0f44e224 100644
--- a/inc/hgl/graph/VKRenderResource.h
+++ b/inc/hgl/graph/VKRenderResource.h
@@ -49,11 +49,14 @@ class RenderResource
     IDResManage<TextureID,              Texture>            rm_textures;                ///<纹理合集
     IDResManage<RenderableID,           Renderable>         rm_renderables;             ///<渲染实例集合集
 
-    DescriptorBinding global_binding;                                            ///<全局属性描述符绑定管理
+public:
+
+    //注：并非一定要走这里，这里只是提供一个注册和自动绑定的机制
+    DescriptorBinding global_descriptor;                                                ///<全局属性描述符绑定管理
 
 public:
 
-    RenderResource(GPUDevice *dev):device(dev){}
+    RenderResource(GPUDevice *dev):device(dev),global_descriptor(DescriptorSetType::Global){}
     virtual ~RenderResource()=default;
 
 public: //Add
@@ -67,13 +70,6 @@ public: //Add
     TextureID               Add(Texture *           t   ){return rm_textures.Add(t);}
     RenderableID            Add(Renderable *        r   ){return rm_renderables.Add(r);}
 
-public: //全局属性(对应shader中的PerGlobal set合集)
-
-    void AddGlobalUBO(const AnsiString &name,DeviceBuffer *buf){global_binding.AddUBO(name,buf);}
-    void AddGlobalSSBO(const AnsiString &name,DeviceBuffer *buf){global_binding.AddSSBO(name,buf);}
-
-    bool BindGlobal(MaterialInstance *mi){return global_binding.Bind(mi->GetMP(DescriptorSetType::Global));}
-
 public: // VBO/VAO
 
     VBO *CreateVBO(VkFormat format,uint32_t count,const void *data,SharingMode sm=SharingMode::Exclusive);
diff --git a/src/SceneGraph/Vulkan/VKDescriptorBindingManage.cpp b/src/SceneGraph/Vulkan/VKDescriptorBindingManage.cpp
index 237eaad1..6185c8d8 100644
--- a/src/SceneGraph/Vulkan/VKDescriptorBindingManage.cpp
+++ b/src/SceneGraph/Vulkan/VKDescriptorBindingManage.cpp
@@ -1,10 +1,17 @@
 #include<hgl/graph/VKDescriptorBindingManage.h>
 #include<hgl/graph/VKMaterialParameters.h>
+#include<hgl/graph/VKMaterialInstance.h>
 
 VK_NAMESPACE_BEGIN
-bool DescriptorBinding::Bind(MaterialParameters *mp)
+bool DescriptorBinding::Bind(MaterialInstance *mi)
 {
-    if(!mp)return(false);
+    if(!mi)
+        return(false);
+
+    MaterialParameters *mp=mi->GetMP(set_type);
+
+    if(!mp)
+        return(false);
 
     {
         const auto *dp=ubo_map.GetDataList();
@@ -40,5 +47,6 @@ bool DescriptorBinding::Bind(MaterialParameters *mp)
     //}
 
     mp->Update();
+    return(true);
 }
 VK_NAMESPACE_END