diff --git a/example/Vulkan/first_triangle.cpp b/example/Vulkan/first_triangle.cpp
index e1c17f69..13fc50fc 100644
--- a/example/Vulkan/first_triangle.cpp
+++ b/example/Vulkan/first_triangle.cpp
@@ -41,6 +41,14 @@ private:
 
 private:
 
+    bool RecreatePipeline()
+    {
+//        pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
+        pipeline=CreatePipeline(material_instance,InlinePipeline::Solid2D);     //等同上一行，为Framework重载，默认使用swapchain的render target
+        
+        return pipeline;
+    }
+
     bool InitMaterial()
     {
         material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/VertexColor2D"));
@@ -48,10 +56,7 @@ private:
         if(!material_instance)
             return(false);
             
-//        pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
-        pipeline=CreatePipeline(material_instance,InlinePipeline::Solid2D);     //等同上一行，为Framework重载，默认使用swapchain的render target
-
-        return pipeline;
+        return RecreatePipeline();
     }
 
     bool InitUBO()
@@ -125,6 +130,8 @@ public:
 
         ubo_camera_info->Write(&cam.info);
 
+        RecreatePipeline();
+        render_instance->UpdatePipeline(pipeline);
         BuildCommandBuffer(render_instance);
     }
 };//class TestApp:public VulkanApplicationFramework
diff --git a/inc/hgl/graph/VKRenderableInstance.h b/inc/hgl/graph/VKRenderableInstance.h
index addfaafe..bcc9ba6e 100644
--- a/inc/hgl/graph/VKRenderableInstance.h
+++ b/inc/hgl/graph/VKRenderableInstance.h
@@ -34,6 +34,8 @@ public:
 
     virtual ~RenderableInstance();
 
+            void                UpdatePipeline      (Pipeline *p){pipeline=p;}
+
             Pipeline *          GetPipeline         (){return pipeline;}
             VkPipelineLayout    GetPipelineLayout   (){return mat_inst->GetMaterial()->GetPipelineLayout();}
             Material *          GetMaterial         (){return mat_inst->GetMaterial();}