diff --git a/example/Vulkan/Cubemap.cpp b/example/Vulkan/Cubemap.cpp
index e8bc80ca..1ed04756 100644
--- a/example/Vulkan/Cubemap.cpp
+++ b/example/Vulkan/Cubemap.cpp
@@ -98,17 +98,7 @@ private:
             sky_mi=db->CreateMaterialInstance(sky_material);
             if(!sky_mi)return(false);
 
-            {            
-                MaterialParameters *mp_texture=sky_mi->GetMP(DescriptorSetsType::Value);
-
-                if(!mp_texture)
-                    return(false);
-
-                if(!mp_texture->BindSampler("tex"    ,texture,    sampler))
-                    return(false);
-
-                mp_texture->Update();
-            }
+            if(!sky_mi->BindSampler(DescriptorSetsType::Value,"tex"    ,texture,    sampler))return(false);
 
             sky_pipeline=CreatePipeline(sky_mi,InlinePipeline::Sky,Prim::Triangles);
             if(!sky_pipeline)return(false);
@@ -121,17 +111,7 @@ private:
             envmap_mi=db->CreateMaterialInstance(envmap_material);
             if(!envmap_mi)return(false);
 
-            {
-                MaterialParameters *mp_texture=envmap_mi->GetMP(DescriptorSetsType::Value);
-
-                if(!mp_texture)
-                    return(false);
-
-                if(!mp_texture->BindSampler("EnvCubemap"    ,texture,    sampler))
-                    return(false);
-
-                mp_texture->Update();
-            }
+            if(!envmap_mi->BindSampler(DescriptorSetsType::Value,"EnvCubemap"    ,texture,    sampler))return(false);
 
             solid_pipeline=CreatePipeline(envmap_mi,InlinePipeline::Solid3D,Prim::Triangles);
         }
diff --git a/example/Vulkan/DrawTile.cpp b/example/Vulkan/DrawTile.cpp
index 4f26351e..1ad675c5 100644
--- a/example/Vulkan/DrawTile.cpp
+++ b/example/Vulkan/DrawTile.cpp
@@ -166,27 +166,8 @@ private:
 
         sampler=db->CreateSampler();        
 
-        {
-            MaterialParameters *mp_global=material_instance->GetMP(DescriptorSetsType::Global);
-        
-            if(!mp_global)
-                return(false);
-
-            if(!mp_global->BindUBO("g_camera",ubo_camera_info))return(false);
-
-            mp_global->Update();
-        }
-
-        {
-            MaterialParameters *mp_texture=material_instance->GetMP(DescriptorSetsType::Value);
-        
-            if(!mp_texture)
-                return(false);
-            
-            if(!mp_texture->BindSampler("tex",tile_data->GetTexture(),sampler))return(false);
-
-            mp_texture->Update();
-        }
+        if(!material_instance->BindUBO(DescriptorSetsType::Global,"g_camera",ubo_camera_info))return(false);
+        if(!material_instance->BindSampler(DescriptorSetsType::Value,"tex",tile_data->GetTexture(),sampler))return(false);
 
         return(true);
     }
diff --git a/example/Vulkan/EquirectangularMap.cpp b/example/Vulkan/EquirectangularMap.cpp
index f9f462fa..e958047c 100644
--- a/example/Vulkan/EquirectangularMap.cpp
+++ b/example/Vulkan/EquirectangularMap.cpp
@@ -48,29 +48,7 @@ private:
             if(!texture)
                 return(false);
 
-            VkSamplerCreateInfo sampler_create_info=
-            {
-                VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
-                nullptr,
-                0,
-                VK_FILTER_LINEAR,
-                VK_FILTER_LINEAR,
-                VK_SAMPLER_MIPMAP_MODE_LINEAR,
-                VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
-                VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
-                VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
-                0.0f,
-                VK_FALSE,
-                0,
-                false,
-                VK_COMPARE_OP_NEVER,
-                0.0f,
-                0,
-                VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK,
-                false
-            };
-
-            sampler =db->CreateSampler(&sampler_create_info);
+            sampler =db->CreateSampler();
         }
 
         {
@@ -80,17 +58,7 @@ private:
             envmap_mi=db->CreateMaterialInstance(envmap_material);
             if(!envmap_mi)return(false);
 
-            {
-                MaterialParameters *mp_texture=envmap_mi->GetMP(DescriptorSetsType::Value);
-
-                if(!mp_texture)
-                    return(false);
-
-                if(!mp_texture->BindSampler("Envmap"    ,texture,    sampler))
-                    return(false);
-
-                mp_texture->Update();
-            }
+            if(!envmap_mi->BindSampler(DescriptorSetsType::Value,"Envmap"    ,texture,    sampler))return(false);
 
             solid_pipeline=CreatePipeline(envmap_mi,InlinePipeline::Solid3D,Prim::Triangles);
         }
diff --git a/example/Vulkan/FragCoordTest.cpp b/example/Vulkan/FragCoordTest.cpp
index b957fcb9..867fea40 100644
--- a/example/Vulkan/FragCoordTest.cpp
+++ b/example/Vulkan/FragCoordTest.cpp
@@ -53,23 +53,15 @@ private:
         cam.vp_width=cam.width=extent.width;
         cam.vp_height=cam.height=extent.height;        
 
-        cam.Refresh();
+        cam.RefreshCameraInfo();
 
         ubo_camera_info=db->CreateUBO(sizeof(CameraInfo),&cam.info);
 
         if(!ubo_camera_info)
             return(false);
 
-        {        
-            MaterialParameters *mp_global=material_instance->GetMP(DescriptorSetsType::Global);
-        
-            if(!mp_global)
-                return(false);
+        if(!material_instance->BindUBO(DescriptorSetsType::Global,"g_camera",ubo_camera_info))return(false);
 
-            if(!mp_global->BindUBO("g_camera",ubo_camera_info))return(false);
-
-            mp_global->Update();
-        }
         return(true);
     }
 
@@ -112,7 +104,7 @@ public:
         cam.vp_width=w;
         cam.vp_height=h;
 
-        cam.Refresh();
+        cam.RefreshCameraInfo();
 
         ubo_camera_info->Write(&cam.info);
 
diff --git a/example/Vulkan/OffscreenRender.cpp b/example/Vulkan/OffscreenRender.cpp
index d5a13ac7..fa62f461 100644
--- a/example/Vulkan/OffscreenRender.cpp
+++ b/example/Vulkan/OffscreenRender.cpp
@@ -64,7 +64,7 @@ public:
         ro->cam.width=extent.width;
         ro->cam.height=extent.height;
 
-        ro->cam.Refresh();
+        ro->cam.RefreshCameraInfo();
 
         ro->ubo_camera_info=db->CreateUBO(sizeof(CameraInfo),&ro->cam.info);
 
diff --git a/example/Vulkan/RectanglePrimitive.cpp b/example/Vulkan/RectanglePrimitive.cpp
index 0fe945e8..d9ee11c8 100644
--- a/example/Vulkan/RectanglePrimitive.cpp
+++ b/example/Vulkan/RectanglePrimitive.cpp
@@ -60,29 +60,9 @@ private:
 
         sampler=db->CreateSampler();
 
-        {
-            MaterialParameters *mp_global=material_instance->GetMP(DescriptorSetsType::Global);
-        
-            if(!mp_global)
-                return(false);
+        if(!material_instance->BindUBO(DescriptorSetsType::Global,"g_camera",ubo_camera_info))return(false);
+        if(!material_instance->BindSampler(DescriptorSetsType::Value,"tex",texture,sampler))return(false);
 
-            if(!mp_global->BindUBO("g_camera",ubo_camera_info))return(false);
-
-            mp_global->Update();
-        }
-
-        {
-            MaterialParameters *mp_texture=material_instance->GetMP(DescriptorSetsType::Value);
-        
-            if(!mp_texture)
-                return(false);
-            
-            if(!mp_texture->BindSampler("tex",texture,sampler))return(false);
-
-            mp_texture->Update();
-        }
-
-        db->Add(texture);
         return(true);
     }
 
diff --git a/example/Vulkan/SceneTree.cpp b/example/Vulkan/SceneTree.cpp
index b94ecb8c..dc6f797d 100644
--- a/example/Vulkan/SceneTree.cpp
+++ b/example/Vulkan/SceneTree.cpp
@@ -28,7 +28,7 @@ private:
     double      start_time;
 
     SceneNode   render_root;
-    RenderList  render_list;
+    RenderList *render_list;
 
     Material *          material            =nullptr;
     MaterialInstance *  material_instance   =nullptr;
@@ -81,14 +81,11 @@ private:
         ubo_sun=device->CreateUBO(sizeof(sun_direction),&sun_direction);
         if(!ubo_sun)return(false);
 
-        material_instance->BindUBO("world",GetCameraMatrixBuffer());
         material_instance->BindUBO("color_material",ubo_color);
         material_instance->BindUBO("sun",ubo_sun);
 
         material_instance->Update();
 
-        db->Add(ubo_color);
-        db->Add(ubo_sun);
         return(true);
     }
 
@@ -123,8 +120,7 @@ private:
         }
 
         render_root.RefreshMatrix();
-        render_list.Clear();
-        render_root.ExpendToList(&render_list);
+        render_list->Expend(camera->info,&render_root);
         return(true);
     }
 
diff --git a/example/Vulkan/SkyColor.cpp b/example/Vulkan/SkyColor.cpp
index 6c120e5b..4b8fdbd8 100644
--- a/example/Vulkan/SkyColor.cpp
+++ b/example/Vulkan/SkyColor.cpp
@@ -71,16 +71,8 @@ private:
         if(!ubo_sky_color)
             return(false);
 
-        {
-            MaterialParameters *mp=material_instance->GetMP(DescriptorSetsType::Value);
-
-            if(!mp)return(false);
-
-            if(!mp->BindUBO("sky_color",ubo_sky_color))
-                return(false);
-
-            mp->Update();
-        }
+        if(!material_instance->BindUBO(DescriptorSetsType::Value,"sky_color",ubo_sky_color))
+            return(false);
 
         return(true);
     }
diff --git a/example/Vulkan/first_triangle.cpp b/example/Vulkan/first_triangle.cpp
index f324ce6c..c41f2efe 100644
--- a/example/Vulkan/first_triangle.cpp
+++ b/example/Vulkan/first_triangle.cpp
@@ -67,16 +67,9 @@ private:
 
         if(!ubo_camera_info)
             return(false);
-
-        {
-            MaterialParameters *mp_global=material_instance->GetMP(DescriptorSetsType::Global);
         
-            if(!mp_global)
-                return(false);
+        if(!material_instance->BindUBO(DescriptorSetsType::Global,"g_camera",ubo_camera_info))return(false);
 
-            mp_global->BindUBO("g_camera",ubo_camera_info);
-            mp_global->Update();
-        }
         return(true);
     }
     
diff --git a/example/Vulkan/indices_rect.cpp b/example/Vulkan/indices_rect.cpp
index fece2f40..0cf598de 100644
--- a/example/Vulkan/indices_rect.cpp
+++ b/example/Vulkan/indices_rect.cpp
@@ -62,23 +62,15 @@ private:
         cam.vp_width=cam.width=extent.width;
         cam.vp_height=cam.height=extent.height;        
 
-        cam.Refresh();
+        cam.RefreshCameraInfo();
 
         ubo_camera_info=db->CreateUBO(sizeof(CameraInfo),&cam.info);
 
         if(!ubo_camera_info)
             return(false);
             
-        {        
-            MaterialParameters *mp_global=material_instance->GetMP(DescriptorSetsType::Global);
-        
-            if(!mp_global)
-                return(false);
+        if(!material_instance->BindUBO(DescriptorSetsType::Global,"g_camera",ubo_camera_info))return(false);
 
-            if(!mp_global->BindUBO("g_camera",ubo_camera_info))return(false);
-
-            mp_global->Update();
-        }
         return(true);
     }
 
@@ -121,7 +113,7 @@ public:
         cam.vp_width=w;
         cam.vp_height=h;
 
-        cam.Refresh();
+        cam.RefreshCameraInfo();
 
         ubo_camera_info->Write(&cam.info);
 
diff --git a/example/Vulkan/texture_rect.cpp b/example/Vulkan/texture_rect.cpp
index fa26ae2f..733f3273 100644
--- a/example/Vulkan/texture_rect.cpp
+++ b/example/Vulkan/texture_rect.cpp
@@ -74,16 +74,7 @@ private:
 
         sampler=db->CreateSampler();
 
-        {
-            MaterialParameters *mp_texture=material_instance->GetMP(DescriptorSetsType::Value);
-        
-            if(!mp_texture)
-                return(false);
-            
-            if(!mp_texture->BindSampler("tex",texture,sampler))return(false);
-
-            mp_texture->Update();
-        }
+        if(!material_instance->BindSampler(DescriptorSetsType::Value,"tex",texture,sampler))return(false);
 
         return(true);
     }
@@ -95,23 +86,14 @@ private:
         cam.vp_width =cam.width =extent.width;
         cam.vp_height=cam.height=extent.height;        
 
-        cam.Refresh();
+        cam.RefreshCameraInfo();
 
         ubo_camera_info=db->CreateUBO(sizeof(CameraInfo),&cam.info);
 
         if(!ubo_camera_info)
             return(false);
         
-        {
-            MaterialParameters *mp_global=material_instance->GetMP(DescriptorSetsType::Global);
-        
-            if(!mp_global)
-                return(false);
-
-            if(!mp_global->BindUBO("g_camera",ubo_camera_info))return(false);
-
-            mp_global->Update();
-        }
+        if(!material_instance->BindUBO(DescriptorSetsType::Global,"g_camera",ubo_camera_info))return(false);
 
         return(true);
     }
@@ -156,7 +138,7 @@ public:
         cam.width=w;
         cam.height=h;
 
-        cam.Refresh();
+        cam.RefreshCameraInfo();
 
         ubo_camera_info->Write(&cam.info);
         
diff --git a/example/Vulkan/two_triangle.cpp b/example/Vulkan/two_triangle.cpp
index a0d4034d..082b624a 100644
--- a/example/Vulkan/two_triangle.cpp
+++ b/example/Vulkan/two_triangle.cpp
@@ -63,22 +63,15 @@ private:
         cam.width=extent.width;
         cam.height=extent.height;
 
-        cam.Refresh();
+        cam.RefreshCameraInfo();
 
         ubo_camera_info=db->CreateUBO(sizeof(CameraInfo),&cam.info);
 
         if(!ubo_camera_info)
             return(false);
             
-        {
-            MaterialParameters *mp_global=material_instance->GetMP(DescriptorSetsType::Global);
-        
-            if(!mp_global)
-                return(false);
+        if(!material_instance->BindUBO(DescriptorSetsType::Global,"g_camera",ubo_camera_info))return(false);
 
-            mp_global->BindUBO("g_camera",ubo_camera_info);
-            mp_global->Update();
-        }
         return(true);
     }
 
@@ -134,7 +127,7 @@ public:
         cam.width=w;
         cam.height=h;
 
-        cam.Refresh();
+        cam.RefreshCameraInfo();
 
         ubo_camera_info->Write(&cam.info);
 
diff --git a/inc/hgl/graph/VKMaterialInstance.h b/inc/hgl/graph/VKMaterialInstance.h
index b9483658..f6008c8f 100644
--- a/inc/hgl/graph/VKMaterialInstance.h
+++ b/inc/hgl/graph/VKMaterialInstance.h
@@ -27,6 +27,10 @@ public:
     const VAB *GetVAB()const{return vab;}
     MaterialParameters *GetMP(){return mp_value;}
     MaterialParameters *GetMP(const DescriptorSetsType &type);
+    
+    bool BindUBO(const DescriptorSetsType &type,const AnsiString &name,GPUBuffer *ubo,bool dynamic=false);
+    bool BindSSBO(const DescriptorSetsType &type,const AnsiString &name,GPUBuffer *ubo,bool dynamic=false);
+    bool BindSampler(const DescriptorSetsType &type,const AnsiString &name,Texture *tex,Sampler *sampler);
 };//class MaterialInstance
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_VULKAN_MATERIAL_INSTANCE_INCLUDE
diff --git a/src/SceneGraph/Vulkan/VKMaterialInstance.cpp b/src/SceneGraph/Vulkan/VKMaterialInstance.cpp
index 9cee676b..d634ea17 100644
--- a/src/SceneGraph/Vulkan/VKMaterialInstance.cpp
+++ b/src/SceneGraph/Vulkan/VKMaterialInstance.cpp
@@ -44,4 +44,43 @@ MaterialParameters *MaterialInstance::GetMP(const DescriptorSetsType &type)
 
     return material->GetMP(type);
 }
+
+bool MaterialInstance::BindUBO(const DescriptorSetsType &type,const AnsiString &name,GPUBuffer *ubo,bool dynamic)
+{
+    MaterialParameters *mp_global=GetMP(type);
+        
+    if(!mp_global)
+        return(false);
+
+    if(!mp_global->BindUBO(name,ubo,dynamic))return(false);
+
+    mp_global->Update();
+    return(true);
+}
+
+bool MaterialInstance::BindSSBO(const DescriptorSetsType &type,const AnsiString &name,GPUBuffer *ubo,bool dynamic)
+{
+    MaterialParameters *mp_global=GetMP(type);
+        
+    if(!mp_global)
+        return(false);
+
+    if(!mp_global->BindSSBO(name,ubo,dynamic))return(false);
+
+    mp_global->Update();
+    return(true);
+}
+
+bool MaterialInstance::BindSampler(const DescriptorSetsType &type,const AnsiString &name,Texture *tex,Sampler *sampler)
+{
+    MaterialParameters *mp_global=GetMP(type);
+        
+    if(!mp_global)
+        return(false);
+
+    if(!mp_global->BindSampler(name,tex,sampler))return(false);
+
+    mp_global->Update();
+    return(true);
+}
 VK_NAMESPACE_END