diff --git a/example/Vulkan/CMakeLists.txt b/example/Vulkan/CMakeLists.txt
index 551419de..c71b91fc 100644
--- a/example/Vulkan/CMakeLists.txt
+++ b/example/Vulkan/CMakeLists.txt
@@ -7,10 +7,8 @@ ENDIF()
 
 add_executable(VulkanTest   main.cpp
                             ${RENDER_WINDOW_SOURCE}
-                            VKInstance.cpp
-							VKSurface.cpp
-                            VKPhysicalDevice.cpp
-                            VKDevice.cpp
-                            VKCommandBuffer.cpp)
+                            VKInstance.cpp		
+                            VKCommandBuffer.cpp
+							RenderSurface.cpp)
 
 target_link_libraries(VulkanTest PRIVATE ${ULRE} ${VULKAN_LIB} ${RENDER_WINDOW_LIBRARY})
diff --git a/example/Vulkan/RenderSurface.cpp b/example/Vulkan/RenderSurface.cpp
new file mode 100644
index 00000000..1e30e085
--- /dev/null
+++ b/example/Vulkan/RenderSurface.cpp
@@ -0,0 +1,188 @@
+#include"RenderSurface.h"
+
+VK_NAMESPACE_BEGIN
+RenderSurface::RenderSurface(Window *w,VkInstance inst,VkPhysicalDevice pd)
+{
+    win=w;
+    instance=inst;
+    physical_device=pd;
+    family_index=-1;
+    device=nullptr;
+    cmd_pool=nullptr;
+
+    vkGetPhysicalDeviceFeatures(physical_device,&features);
+    vkGetPhysicalDeviceProperties(physical_device,&properties);
+    vkGetPhysicalDeviceMemoryProperties(physical_device,&memory_properties);
+
+    surface=win->CreateSurface(inst);
+
+    {
+        uint32_t family_count;
+        vkGetPhysicalDeviceQueueFamilyProperties(physical_device,&family_count,nullptr);    
+        family_properties.SetCount(family_count);
+        vkGetPhysicalDeviceQueueFamilyProperties(physical_device,&family_count,family_properties.GetData());
+
+        {
+            supports_present.SetCount(family_count);
+            VkBool32 *sp=supports_present.GetData();
+            for(uint32_t i=0; i<family_count; i++)
+            {
+                vkGetPhysicalDeviceSurfaceSupportKHR(physical_device,i,surface,sp);
+                ++sp;
+            }
+        }
+    }
+
+    {
+        uint32_t format_count;
+        if(vkGetPhysicalDeviceSurfaceFormatsKHR(physical_device,surface,&format_count,nullptr)==VK_SUCCESS)
+        {
+            surface_formts.SetCount(format_count);
+
+            if(vkGetPhysicalDeviceSurfaceFormatsKHR(physical_device,surface,&format_count,surface_formts.GetData())!=VK_SUCCESS)
+                surface_formts.Clear();
+        }
+    }
+
+    {
+        uint32_t mode_count;
+        if(vkGetPhysicalDeviceSurfacePresentModesKHR(physical_device,surface,&mode_count,nullptr)==VK_SUCCESS)
+        {
+            present_modes.SetCount(mode_count);
+            if(vkGetPhysicalDeviceSurfacePresentModesKHR(physical_device,surface,&mode_count,present_modes.GetData())!=VK_SUCCESS)
+                present_modes.Clear();
+        }
+    }
+
+    {
+        vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physical_device,surface,&surface_caps);
+
+        VkExtent2D swapchain_extent;
+        if(surface_caps.currentExtent.width==0xFFFFFFFF)
+        {
+            swapchain_extent.width=win->GetWidth();
+            swapchain_extent.height=win->GetHeight();
+
+            if(swapchain_extent.width<surface_caps.minImageExtent.width)swapchain_extent.width=surface_caps.minImageExtent.width;else
+            if(swapchain_extent.width>surface_caps.maxImageExtent.width)swapchain_extent.width=surface_caps.maxImageExtent.width;
+
+            if(swapchain_extent.height<surface_caps.minImageExtent.height)swapchain_extent.height=surface_caps.minImageExtent.height;else 
+            if(swapchain_extent.height>surface_caps.maxImageExtent.height)swapchain_extent.height=surface_caps.maxImageExtent.height;
+        }
+        else
+        {
+            swapchain_extent=surface_caps.currentExtent;
+        }
+    }
+
+    CreateDevice();
+}
+
+RenderSurface::~RenderSurface()
+{
+    if(device)
+    {
+        if(cmd_pool)
+            vkDestroyCommandPool(device,cmd_pool,nullptr);
+
+        vkDestroyDevice(device,nullptr);
+    }
+
+    if(surface)
+        vkDestroySurfaceKHR(instance,surface,nullptr);
+}
+
+int RenderSurface::QueueFamilyProperties(VkQueueFlags flag) const
+{
+    const int count=family_properties.GetCount();
+
+    if(count<=0)
+        return(-1);
+
+    VkBool32*sp=supports_present.GetData();
+    VkQueueFamilyProperties*fp=family_properties.GetData();
+    for(int i=0;i<count;i++)
+    {
+        if((*sp)
+           &&(fp->queueFlags&flag))
+            return i;
+
+        ++sp;
+        ++fp;
+    }
+
+    return -1;
+}
+
+bool RenderSurface::CreateCommandPool()
+{
+    VkCommandPoolCreateInfo cmd_pool_info={};
+
+    cmd_pool_info.sType=VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
+    cmd_pool_info.pNext=NULL;
+    cmd_pool_info.queueFamilyIndex=family_index;
+    cmd_pool_info.flags=0;
+
+    VkResult res=vkCreateCommandPool(device,&cmd_pool_info,nullptr,&cmd_pool);
+
+    return(res==VK_SUCCESS);
+}
+
+CommandBuffer *RenderSurface::CreateCommandBuffer()
+{
+    if(!cmd_pool)
+        return(nullptr);
+
+    VkCommandBufferAllocateInfo cmd={};
+    cmd.sType=VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
+    cmd.pNext=nullptr;
+    cmd.commandPool=cmd_pool;
+    cmd.level=VK_COMMAND_BUFFER_LEVEL_PRIMARY;
+    cmd.commandBufferCount=1;
+
+    VkCommandBuffer cmd_buf;
+
+    VkResult res=vkAllocateCommandBuffers(device,&cmd,&cmd_buf);
+
+    if(res!=VK_SUCCESS)
+        return(nullptr);
+
+    return(new CommandBuffer(device,cmd_pool,cmd_buf));
+}
+
+bool RenderSurface::CreateDevice() 
+{
+    family_index=QueueFamilyProperties(VK_QUEUE_GRAPHICS_BIT);
+
+    if(family_index==-1)
+        return(false);
+
+    float queue_priorities[1]={0.0};
+
+    VkDeviceQueueCreateInfo queue_info;
+    queue_info.queueFamilyIndex=family_index;
+    queue_info.sType=VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
+    queue_info.pNext=nullptr;
+    queue_info.queueCount=1;
+    queue_info.pQueuePriorities=queue_priorities;
+
+    VkDeviceCreateInfo create_info={};
+    const char *ext_list[1]={VK_KHR_SWAPCHAIN_EXTENSION_NAME};
+    create_info.sType=VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
+    create_info.pNext=nullptr;
+    create_info.queueCreateInfoCount=1;
+    create_info.pQueueCreateInfos=&queue_info;
+    create_info.enabledExtensionCount=1;
+    create_info.ppEnabledExtensionNames=ext_list;
+    create_info.enabledLayerCount=0;
+    create_info.ppEnabledLayerNames=nullptr;
+    create_info.pEnabledFeatures=nullptr;
+
+    VkResult res=vkCreateDevice(physical_device,&create_info,nullptr,&device);
+    if(res!=VK_SUCCESS)
+        return(nullptr);
+
+    CreateCommandPool();
+    return(true);
+}
+VK_NAMESPACE_END
diff --git a/example/Vulkan/RenderSurface.h b/example/Vulkan/RenderSurface.h
new file mode 100644
index 00000000..5f1616af
--- /dev/null
+++ b/example/Vulkan/RenderSurface.h
@@ -0,0 +1,52 @@
+#ifndef HGL_GRAPH_RENDER_SURFACE_INCLUDE
+#define HGL_GRAPH_RENDER_SURFACE_INCLUDE
+
+#include<hgl/type/List.h>
+#include"VK.h"
+#include"Window.h"
+#include"VKCommandBuffer.h"
+
+VK_NAMESPACE_BEGIN
+class RenderSurface
+{
+	Window *win;
+	VkInstance instance;
+	VkPhysicalDevice physical_device;
+	VkSurfaceKHR surface;
+
+    VkPhysicalDeviceFeatures features;
+    VkPhysicalDeviceProperties properties;
+    VkPhysicalDeviceMemoryProperties memory_properties;
+
+    List<VkQueueFamilyProperties> family_properties;
+    List<VkBool32> supports_present;
+
+	List<VkSurfaceFormatKHR> surface_formts;
+	VkSurfaceCapabilitiesKHR surface_caps;
+	List<VkPresentModeKHR> present_modes;
+
+    uint32_t family_index;
+    VkDevice device;
+    VkCommandPool cmd_pool;                                                 ///<命令池，用于创建命令缓冲区。由于不知道创建多个是否有好处，所以暂时设计为一个设备只有一个。
+
+protected:
+
+    int QueueFamilyProperties(VkQueueFlags) const;
+
+    bool CreateDevice();
+    bool CreateCommandPool();
+
+public:
+
+    RenderSurface(Window *,VkInstance,VkPhysicalDevice);
+    virtual ~RenderSurface();
+
+    VkPhysicalDevice GetPhysicalDevice() { return physical_device; }
+    VkSurfaceKHR GetSurface() { return surface; }
+
+public:
+
+    CommandBuffer *CreateCommandBuffer();
+};//class RenderSurface
+VK_NAMESPACE_END
+#endif//HGL_GRAPH_RENDER_SURFACE_INCLUDE
diff --git a/example/Vulkan/VKDevice.cpp b/example/Vulkan/VKDevice.cpp
deleted file mode 100644
index 5d7025d9..00000000
--- a/example/Vulkan/VKDevice.cpp
+++ /dev/null
@@ -1,53 +0,0 @@
-锘�#include"VKDevice.h"
-#include"VKCommandBuffer.h"
-
-VK_NAMESPACE_BEGIN
-Device::Device(VkDevice dev,int family_index)
-{
-    device=dev;
-
-    cmd_pool=nullptr;
-
-    if(!device)
-        return;
-
-    {
-        VkCommandPoolCreateInfo cmd_pool_info = {};
-
-        cmd_pool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
-        cmd_pool_info.pNext = NULL;
-        cmd_pool_info.queueFamilyIndex = family_index;
-        cmd_pool_info.flags = 0;
-
-        VkResult res = vkCreateCommandPool(device, &cmd_pool_info, nullptr, &cmd_pool);
-    }
-}
-
-Device::~Device()
-{
-    vkDestroyCommandPool(device,cmd_pool,nullptr);
-    vkDestroyDevice(device,nullptr);
-}
-
-CommandBuffer *Device::CreateCommandBuffer()
-{
-    if(!cmd_pool)
-        return(nullptr);
-
-    VkCommandBufferAllocateInfo cmd = {};
-    cmd.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
-    cmd.pNext = nullptr;
-    cmd.commandPool = cmd_pool;
-    cmd.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
-    cmd.commandBufferCount = 1;
-
-    VkCommandBuffer cmd_buf;
-
-    VkResult res = vkAllocateCommandBuffers(device, &cmd, &cmd_buf);
-
-    if(res!=VK_SUCCESS)
-        return(nullptr);
-
-    return(new CommandBuffer(device,cmd_pool,cmd_buf));
-}
-VK_NAMESPACE_END
diff --git a/example/Vulkan/VKDevice.h b/example/Vulkan/VKDevice.h
deleted file mode 100644
index 0693008a..00000000
--- a/example/Vulkan/VKDevice.h
+++ /dev/null
@@ -1,27 +0,0 @@
-锘�#ifndef HGL_GRAPH_VULKAN_DEVICE_INCLUDE
-#define HGL_GRAPH_VULKAN_DEVICE_INCLUDE
-
-#include"VK.h"
-
-VK_NAMESPACE_BEGIN
-
-    class CommandBuffer;
-
-    /**
-     * Vulkan璁惧瀵硅薄灏佽
-     */
-    class Device
-    {
-        VkDevice device;
-        VkCommandPool cmd_pool;                                                 ///<鍛戒护姹狅紝鐢ㄤ簬鍒涘缓鍛戒护缂撳啿鍖恒�傜敱浜庝笉鐭ラ亾鍒涘缓澶氫釜鏄惁鏈夊ソ澶勶紝鎵�浠ユ殏鏃惰璁′负涓�涓澶囧彧鏈変竴涓��
-
-    public:
-
-        Device(VkDevice,int);
-        virtual ~Device();
-
-        CommandBuffer *CreateCommandBuffer();
-    };//class Device
-VK_NAMESPACE_END
-
-#endif//HGL_GRAPH_VULKAN_DEVICE_INCLUDE
diff --git a/example/Vulkan/VKInstance.cpp b/example/Vulkan/VKInstance.cpp
index 8acb2d66..df26208c 100644
--- a/example/Vulkan/VKInstance.cpp
+++ b/example/Vulkan/VKInstance.cpp
@@ -59,22 +59,21 @@ bool Instance::Init()
         if(res!=VK_SUCCESS)
             return(false);
 
-        VkPhysicalDevice *pd_list=new VkPhysicalDevice[gpu_count];
         physical_devices.SetCount(gpu_count);
-        vkEnumeratePhysicalDevices(inst, &gpu_count, pd_list);
-
-        for(uint32_t i=0;i<gpu_count;i++)
-            physical_devices.Add(new PhysicalDevice(pd_list[i]));
-
-        delete[] pd_list;
+        vkEnumeratePhysicalDevices(inst, &gpu_count,physical_devices.GetData());
     }
 
     return(true);
 }
 
-Surface* Instance::CreateSurface()
+RenderSurface *Instance::CreateRenderSurface(int pd_index)
 {
-	return win->CreateVulkanSurface(inst);
+    VkPhysicalDevice pd;
+
+    if(!physical_devices.Get(pd_index,pd))
+        return(false);
+
+    return(new RenderSurface(win,inst,pd));
 }
 
 VK_NAMESPACE_END
diff --git a/example/Vulkan/VKInstance.h b/example/Vulkan/VKInstance.h
index e100ec7e..f406e714 100644
--- a/example/Vulkan/VKInstance.h
+++ b/example/Vulkan/VKInstance.h
@@ -4,9 +4,7 @@
 #include<hgl/type/BaseString.h>
 #include<hgl/type/List.h>
 #include"Window.h"
-#include"VK.h"
-#include"VKSurface.h"
-#include"VKPhysicalDevice.h"
+#include"RenderSurface.h"
 
 VK_NAMESPACE_BEGIN
     class Instance
@@ -20,7 +18,7 @@ VK_NAMESPACE_BEGIN
 
         VkInstance inst;
 
-        ObjectList<PhysicalDevice> physical_devices;
+        List<VkPhysicalDevice> physical_devices;
 
     private:
 
@@ -33,9 +31,9 @@ VK_NAMESPACE_BEGIN
 
         virtual bool Init();
 
-        const ObjectList<PhysicalDevice> & GetDeviceList()const{return physical_devices;}
+        const List<VkPhysicalDevice> & GetDeviceList()const{return physical_devices;}
 
-		virtual Surface *CreateSurface();
+		RenderSurface *CreateRenderSurface(int pd_index=0);
     };//class Instance
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_VULKAN_INSTANCE_INCLUDE
diff --git a/example/Vulkan/VKPhysicalDevice.cpp b/example/Vulkan/VKPhysicalDevice.cpp
deleted file mode 100644
index 654f1f16..00000000
--- a/example/Vulkan/VKPhysicalDevice.cpp
+++ /dev/null
@@ -1,83 +0,0 @@
-锘�#include"VKPhysicalDevice.h"
-#include"VKDevice.h"
-
-VK_NAMESPACE_BEGIN
-
-PhysicalDevice::PhysicalDevice(VkPhysicalDevice pd)
-{
-    physical_device=pd;
-
-    if(!pd)return;
-
-    vkGetPhysicalDeviceFeatures(physical_device,&features);
-    vkGetPhysicalDeviceProperties(physical_device,&properties);
-    vkGetPhysicalDeviceMemoryProperties(physical_device,&memory_properties);
-
-    {
-        uint32_t family_count;
-        vkGetPhysicalDeviceQueueFamilyProperties(physical_device,&family_count,nullptr);
-        family_properties.SetCount(family_count);
-        vkGetPhysicalDeviceQueueFamilyProperties(physical_device,&family_count,family_properties.GetData());
-    }
-}
-
-PhysicalDevice::~PhysicalDevice()
-{
-}
-
-int PhysicalDevice::QueueFamilyProperties(VkQueueFlags flag) const
-{
-    const int count=family_properties.GetCount();
-
-    if(count<=0)
-        return(-1);
-
-    VkQueueFamilyProperties *fp=family_properties.GetData();
-    for(int i=0;i<count;i++)
-    {
-        if(fp->queueFlags&flag)
-            return i;
-
-        ++fp;
-    }
-
-    return -1;
-}
-
-Device *PhysicalDevice::CreateGraphicsDevice() const
-{
-    const int index=QueueFamilyProperties(VK_QUEUE_GRAPHICS_BIT);
-
-    if(index==-1)
-        return(nullptr);
-
-    float queue_priorities[1] = {0.0};
-
-    VkDeviceQueueCreateInfo queue_info;
-    queue_info.queueFamilyIndex=index;
-    queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
-    queue_info.pNext = nullptr;
-    queue_info.queueCount = 1;
-    queue_info.pQueuePriorities = queue_priorities;
-
-    VkDeviceCreateInfo create_info = {};
-    const char *ext_list[1]={VK_KHR_SWAPCHAIN_EXTENSION_NAME};
-    create_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
-    create_info.pNext = nullptr;
-    create_info.queueCreateInfoCount = 1;
-    create_info.pQueueCreateInfos = &queue_info;
-    create_info.enabledExtensionCount = 1;
-    create_info.ppEnabledExtensionNames = ext_list;
-    create_info.enabledLayerCount = 0;
-    create_info.ppEnabledLayerNames = nullptr;
-    create_info.pEnabledFeatures = nullptr;
-
-    VkDevice device;
-    VkResult res = vkCreateDevice(physical_device, &create_info, nullptr, &device);
-    if(res != VK_SUCCESS)
-        return(nullptr);
-
-    return(new Device(device,index));
-}
-
-VK_NAMESPACE_END
diff --git a/example/Vulkan/VKPhysicalDevice.h b/example/Vulkan/VKPhysicalDevice.h
deleted file mode 100644
index ad6e1b1d..00000000
--- a/example/Vulkan/VKPhysicalDevice.h
+++ /dev/null
@@ -1,34 +0,0 @@
-锘�#ifndef HGL_GRAPH_VULKAN_PHYSICAL_DEVICE_INCLUDE
-#define HGL_GRAPH_VULKAN_PHYSICAL_DEVICE_INCLUDE
-
-#include"VK.h"
-#include<hgl/type/List.h>
-
-VK_NAMESPACE_BEGIN
-
-    class Device;
-
-    /**
-     * Vulkan鐗╃悊璁惧瀵硅薄灏佽<br>
-     * 娉細杩欎釜璁惧鍙兘鏄浘褰㈣澶囷紝涔熷彲鑳芥槸璁＄畻璁惧绛夛紝鎴戜滑鏆傛椂鍙敮鎸佸浘褰㈣澶�
-     */
-    class PhysicalDevice
-    {
-        VkPhysicalDevice physical_device;
-
-        VkPhysicalDeviceFeatures features;
-        VkPhysicalDeviceProperties properties;
-        VkPhysicalDeviceMemoryProperties memory_properties;
-
-        List<VkQueueFamilyProperties> family_properties;
-        int QueueFamilyProperties(VkQueueFlags) const;
-
-    public:
-
-        PhysicalDevice(VkPhysicalDevice pd);
-        ~PhysicalDevice();
-
-        Device *CreateGraphicsDevice()const;                                    ///<鍒涘缓涓�涓浘褰㈣澶�
-    };//class PhysicalDevice
-VK_NAMESPACE_END
-#endif//HGL_GRAPH_VULKAN_PHYSICAL_DEVICE_INCLUDE
diff --git a/example/Vulkan/VKSurface.cpp b/example/Vulkan/VKSurface.cpp
deleted file mode 100644
index 04aae8d7..00000000
--- a/example/Vulkan/VKSurface.cpp
+++ /dev/null
@@ -1,8 +0,0 @@
-#include"VKSurface.h"
-
-VK_NAMESPACE_BEGIN
-Surface::~Surface()
-{
-	vkDestroySurfaceKHR(instance, surface, nullptr);
-}
-VK_NAMESPACE_END
diff --git a/example/Vulkan/VKSurface.h b/example/Vulkan/VKSurface.h
deleted file mode 100644
index 0474578f..00000000
--- a/example/Vulkan/VKSurface.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef HGL_GRAPH_VULKAN_SURFACE_INCLUDE
-#define HGL_GRAPH_VULKAN_SURFACE_INCLUDE
-
-#include"VK.h"
-
-VK_NAMESPACE_BEGIN
-
-class Surface
-{
-	VkInstance instance;
-	VkSurfaceKHR surface;
-
-public:
-
-	Surface(VkInstance inst,VkSurfaceKHR surf)
-	{
-		instance = inst;
-		surface = surf;
-	}
-
-	virtual ~Surface();
-};//class Surface
-
-VK_NAMESPACE_END
-#endif//HGL_GRAPH_VULKAN_SURFACE_INCLUDE
diff --git a/example/Vulkan/WinWindow.cpp b/example/Vulkan/WinWindow.cpp
index 0b0a48e6..5f0c669d 100644
--- a/example/Vulkan/WinWindow.cpp
+++ b/example/Vulkan/WinWindow.cpp
@@ -173,7 +173,7 @@ namespace hgl
 				UpdateWindow(win_hwnd);
 			}
 
-			vulkan::Surface* CreateVulkanSurface(VkInstance vk_inst)const override
+			VkSurfaceKHR CreateSurface(VkInstance vk_inst)const override
 			{
 				VkWin32SurfaceCreateInfoKHR createInfo = {};
 				createInfo.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
@@ -188,7 +188,7 @@ namespace hgl
 				if (res != VK_SUCCESS)
 					return(nullptr);
 
-				return(new vulkan::Surface(vk_inst,surface));
+				return(surface);
 			}
 		};//class WinWindow :public Window
 
diff --git a/example/Vulkan/Window.h b/example/Vulkan/Window.h
index e9ef1984..fd368ee9 100644
--- a/example/Vulkan/Window.h
+++ b/example/Vulkan/Window.h
@@ -2,7 +2,7 @@
 #define HGL_GRAPH_WINDOW_INCLUDE
 
 #include<hgl/type/BaseString.h>
-#include"VKSurface.h"
+#include"VK.h"
 namespace hgl
 {
     namespace graph
@@ -38,7 +38,7 @@ namespace hgl
             virtual void Show()=0;
             virtual void Hide()=0;
 
-			virtual vulkan::Surface *CreateVulkanSurface(VkInstance)const = 0;
+			virtual VkSurfaceKHR CreateSurface(VkInstance)const = 0;
         };//class Window
 
         Window *CreateRenderWindow(const OSString &win_name);
diff --git a/example/Vulkan/main.cpp b/example/Vulkan/main.cpp
index a0551f6d..0fd54c56 100644
--- a/example/Vulkan/main.cpp
+++ b/example/Vulkan/main.cpp
@@ -1,9 +1,5 @@
-锘�#include"VK.h"
+锘�#include"Window.h"
 #include"VKInstance.h"
-#include"VKSurface.h"
-#include"VKDevice.h"
-#include"VKCommandBuffer.h"
-#include"Window.h"
 
 using namespace hgl;
 using namespace hgl::graph;
@@ -22,19 +18,13 @@ int main(int,char **)
         return(-1);
     }
 
-	vulkan::Surface *surface = inst.CreateSurface();
+    vulkan::RenderSurface *render=inst.CreateRenderSurface();
+    vulkan::CommandBuffer *cmd_buf=render->CreateCommandBuffer();
 
-    const ObjectList<vulkan::PhysicalDevice> &device_list=inst.GetDeviceList();
 
-    vulkan::PhysicalDevice *pd=device_list[0];
 
-    vulkan::Device *dev=pd->CreateGraphicsDevice();
-
-    vulkan::CommandBuffer *cmd_buf=dev->CreateCommandBuffer();
-
-	delete surface;
     delete cmd_buf;
-    delete dev;
+    delete render;
     delete win;
 
     return 0;