diff --git a/example/Vulkan/Geometry3D.cpp b/example/Vulkan/Geometry3D.cpp
index cd32b3de..57a098c3 100644
--- a/example/Vulkan/Geometry3D.cpp
+++ b/example/Vulkan/Geometry3D.cpp
@@ -49,13 +49,8 @@ private:
     void InitCamera()
     {
         camera.type=CameraType::Perspective;
-        camera.center.Set(0,0,0);
-        camera.eye.Set(100,100,100);
-        camera.up_vector.Set(0,0,1);
-        camera.forward_vector.Set(0,1,0);
-        camera.znear=4;
-        camera.zfar=1000;
-        camera.fov=90;
+        camera.center.Set(0,0,0,1);
+        camera.eye.Set(100,100,100,1);
         camera.width=SCREEN_WIDTH;
         camera.height=SCREEN_HEIGHT;
 
diff --git a/example/Vulkan/LoadModel.cpp b/example/Vulkan/LoadModel.cpp
index 92c63976..3ec063f1 100644
--- a/example/Vulkan/LoadModel.cpp
+++ b/example/Vulkan/LoadModel.cpp
@@ -14,8 +14,8 @@
 using namespace hgl;
 using namespace hgl::graph;
 
-constexpr uint32_t SCREEN_WIDTH=1280;
-constexpr uint32_t SCREEN_HEIGHT=960;
+constexpr uint32_t SCREEN_WIDTH=128;
+constexpr uint32_t SCREEN_HEIGHT=128;
 
 vulkan::Renderable *CreateMeshRenderable(SceneDB *db,vulkan::Material *mtl,const MeshData *mesh)
 {
@@ -119,18 +119,13 @@ private:
         math::vec center_point=model_data->bounding_box.CenterPoint();
         math::vec max_point=model_data->bounding_box.maxPoint;
 
-        max_point.x*=3.0f;
+        max_point.x*=2.0f;
         max_point.y=center_point.y;
         max_point.z=center_point.z;
 
         camera.type=CameraType::Perspective;
-        camera.center=center_point.xyz();
-        camera.eye=max_point.xyz();
-        camera.up_vector.Set(0,0,1);
-        camera.forward_vector.Set(0,1,0);
-        camera.znear=4;
-        camera.zfar=1000;
-        camera.fov=90;
+        camera.center=center_point;
+        camera.eye=max_point;
         camera.width=SCREEN_WIDTH;
         camera.height=SCREEN_HEIGHT;
 
diff --git a/example/Vulkan/VulkanAppFramework.h b/example/Vulkan/VulkanAppFramework.h
index f244a314..e0ae24cd 100644
--- a/example/Vulkan/VulkanAppFramework.h
+++ b/example/Vulkan/VulkanAppFramework.h
@@ -21,7 +21,7 @@ using namespace hgl::graph;
 
 class VulkanApplicationFramework
 {
-private:    
+private:
 
             Window *            win             =nullptr;
     vulkan::Instance *          inst            =nullptr;
diff --git a/inc/hgl/graph/Camera.h b/inc/hgl/graph/Camera.h
index 5db23283..ef993c95 100644
--- a/inc/hgl/graph/Camera.h
+++ b/inc/hgl/graph/Camera.h
@@ -22,14 +22,14 @@ namespace hgl
             float width;                ///<视图宽
             float height;               ///<视图高
 
-            float fov;                  ///<水平FOV
-            float znear,zfar;           ///<Z轴上离眼睛的距离
+            float fov=90;               ///<水平FOV
+            float znear=0,zfar=1000;    ///<Z轴上离眼睛的距离
 
             Vector4f eye;               ///<眼睛坐标
             Vector4f center;            ///<视点坐标
-            Vector4f up_vector;         ///<向上量(默认0,0,1)
-            Vector4f forward_vector;    ///<向前量(默认1,0,0)
-            Vector4f right_vector;      ///<向右量(默认0,1,0)
+            Vector4f up_vector      =Vector4f(0,0,1,0); ///<向上量(默认0,0,1)
+            Vector4f forward_vector =Vector4f(0,1,0,0); ///<向前量(默认0,1,0)
+            Vector4f right_vector   =Vector4f(1,0,0,0); ///<向右量(默认0,0,1)
 
         public:
 
diff --git a/src/SceneGraph/CMakeLists.txt b/src/SceneGraph/CMakeLists.txt
index 2d11515a..c6296e3f 100644
--- a/src/SceneGraph/CMakeLists.txt
+++ b/src/SceneGraph/CMakeLists.txt
@@ -12,7 +12,7 @@
                         #${ROOT_INCLUDE_PATH}/hgl/graph/Mesh.h
                         #${ROOT_INCLUDE_PATH}/hgl/graph/Material.h
                         ${ROOT_INCLUDE_PATH}/hgl/graph/TextureType.h
-						#${ROOT_INCLUDE_PATH}/hgl/graph/Spline.h
+                        #${ROOT_INCLUDE_PATH}/hgl/graph/Spline.h
                         )
 
 SET(SCENE_GRAPH_SOURCE  AABox.cpp
@@ -25,7 +25,7 @@ SET(SCENE_GRAPH_SOURCE  AABox.cpp
                         #Material.cpp
                         #Mesh.cpp
                         #SceneFile.cpp
-						)
+                        )
 
 SOURCE_GROUP("Header Files" FILES ${SCENE_GRAPH_HEADER})
 SOURCE_GROUP("Source Files" FILES ${SCENE_GRAPH_SOURCE})