diff --git a/example/Vulkan/Geometry3D.cpp b/example/Vulkan/Geometry3D.cpp
index 6962356b..53cf534d 100644
--- a/example/Vulkan/Geometry3D.cpp
+++ b/example/Vulkan/Geometry3D.cpp
@@ -10,8 +10,8 @@
 using namespace hgl;
 using namespace hgl::graph;
 
-constexpr uint32_t SCREEN_WIDTH=128;
-constexpr uint32_t SCREEN_HEIGHT=128;
+constexpr uint32_t SCREEN_WIDTH=1280;
+constexpr uint32_t SCREEN_HEIGHT=720;
 
 class TestApp:public CameraAppFramework
 {
@@ -52,7 +52,7 @@ private:
 
     bool InitUBO(MDP *mdp)
     {
-        if(!InitCameraUBO(mdp->material_instance,"world"))
+        if(!mdp->material_instance->BindUBO("world",GetCameraMatrixBuffer()))
             return(false);
 
         mdp->material_instance->Update();
@@ -150,12 +150,12 @@ public:
         if(!CameraAppFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
             return(false);
 
-        if(!InitMDP(&m3d,PRIM_LINES,OS_TEXT("res/shader/PositionColor3D.vert.spv"),
-                                    OS_TEXT("res/shader/VertexColor.frag.spv")))
+        if(!InitMDP(&m3d,PRIM_LINES,OS_TEXT("res/shader/PositionColor3D.vert"),
+                                    OS_TEXT("res/shader/VertexColor.frag")))
             return(false);
 
-        if(!InitMDP(&m2d,PRIM_TRIANGLE_FAN, OS_TEXT("res/shader/OnlyPosition.vert.spv"),
-                                            OS_TEXT("res/shader/FlatColor.frag.spv")))
+        if(!InitMDP(&m2d,PRIM_TRIANGLE_FAN, OS_TEXT("res/shader/OnlyPosition.vert"),
+                                            OS_TEXT("res/shader/FlatColor.frag")))
             return(false);
 
         {
diff --git a/example/Vulkan/VulkanAppFramework.h b/example/Vulkan/VulkanAppFramework.h
index 4677b62c..f48e050a 100644
--- a/example/Vulkan/VulkanAppFramework.h
+++ b/example/Vulkan/VulkanAppFramework.h
@@ -112,7 +112,7 @@ public:
             cili.khronos.validation = true;
             cili.RenderDoc.Capture = true;
 
-            inst=vulkan::CreateInstance(U8_TEXT("VulkanTest"));
+            inst=vulkan::CreateInstance(U8_TEXT("VulkanTest"),nullptr,&cili);
 
             if(!inst)
                 return(false);
@@ -304,12 +304,16 @@ public:
         camera.type=CameraType::Perspective;
         camera.width=w;
         camera.height=h;
+        camera.vp_width=w;
+        camera.vp_height=h;
         camera.center.Set(0,0,0,1);
         camera.eye.Set(100,100,100,1);      //xyz三个值不要一样，以方便调试
         camera.znear=16;
         camera.zfar=256;
 
         camera.Refresh();      //更新矩阵计算
+        
+        ubo_world_matrix=db->CreateUBO(sizeof(WorldMatrix),&camera.matrix);
     }
 
     void Resize(int w,int h)override
@@ -318,14 +322,9 @@ public:
         camera.height=h;
     }
 
-    bool InitCameraUBO(vulkan::MaterialInstance *mi,const UTF8String &node_name)
+    vulkan::Buffer *GetCameraMatrixBuffer()
     {
-        ubo_world_matrix=db->CreateUBO(sizeof(WorldMatrix),&camera.matrix);
-
-        if(!ubo_world_matrix)
-            return(false);
-
-        return mi->BindUBO(node_name,ubo_world_matrix);
+        return ubo_world_matrix;
     }
 
     virtual void BuildCommandBuffer(uint32_t index)=0;