diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index c1e2bc19..d1ce92ac 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -1,5 +1,7 @@
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/common)
 
+SET(VULKAN_APP_FRAMEWORK ${CMAKE_CURRENT_SOURCE_DIR}/common/VulkanAppFramework.h)
+
 add_subdirectory(Vulkan)
 add_subdirectory(2dVector)
-add_subdirectory(GUI)
\ No newline at end of file
+add_subdirectory(GUI)
diff --git a/example/Vulkan/CMakeLists.txt b/example/Vulkan/CMakeLists.txt
index d23b00ab..7ab6e714 100644
--- a/example/Vulkan/CMakeLists.txt
+++ b/example/Vulkan/CMakeLists.txt
@@ -1,5 +1,5 @@
 macro(CreateProject name)
-    add_executable(${name} ${ARGN})
+    add_executable(${name} ${ARGN} ${VULKAN_APP_FRAMEWORK})
     target_link_libraries(${name} ${ULRE})
 
     IF(WIN32)
diff --git a/example/Vulkan/DeferredModel.cpp b/example/Vulkan/DeferredModel.cpp
index 4ab2458b..ae11c750 100644
--- a/example/Vulkan/DeferredModel.cpp
+++ b/example/Vulkan/DeferredModel.cpp
@@ -53,7 +53,7 @@ private:
     struct
     {
         RenderTarget *rt;
-        GPUCmdBuffer *cmd;
+        RenderCommand *cmd;
 
     public:
 
@@ -116,7 +116,7 @@ private:
 
         if(!gbuffer.rt)return(false);
 
-        gbuffer.cmd=device->CreateCommandBuffer(size_t(GBufferAttachment::RANGE_SIZE)+1);
+        gbuffer.cmd=device->CreateRenderCommandBuffer();
 
         return(gbuffer.rt);
     }
@@ -298,7 +298,10 @@ private:
             if(!gbuffer.cmd->BindFramebuffer(gbuffer.rt->GetRenderPass(),gbuffer.rt->GetFramebuffer()))
                 return(false);
 
-            render_list.Render(gbuffer.cmd);
+            if(!gbuffer.cmd->BeginRenderpass())
+                return(false);
+
+                render_list.Render(gbuffer.cmd);
 
             gbuffer.cmd->EndRenderPass();
         gbuffer.cmd->End();
diff --git a/example/Vulkan/Geometry3D.cpp b/example/Vulkan/Geometry3D.cpp
index ce33da4b..0356c4ac 100644
--- a/example/Vulkan/Geometry3D.cpp
+++ b/example/Vulkan/Geometry3D.cpp
@@ -66,19 +66,6 @@ private:
         render_root.Add(ri,mat);
     }
 
-    bool InitScene()
-    {
-        Add(ro_round_rectangle,m2d);
-        Add(ro_plane_grid[0],m3d);
-        Add(ro_plane_grid[1],m3d,rotate(HGL_RAD_90,0,1,0));
-        Add(ro_plane_grid[2],m3d,rotate(HGL_RAD_90,1,0,0));
-
-        render_root.RefreshMatrix();
-        render_root.ExpendToList(&render_list);
-
-        return(true);
-    }
-
     void CreateRenderObject()
     {
         struct PlaneGridCreateInfo pgci;
@@ -121,6 +108,19 @@ private:
         camera.eye.Set(200,200,200,1.0);
     }
 
+    bool InitScene()
+    {
+        Add(ro_round_rectangle,m2d);
+        Add(ro_plane_grid[0],m3d);
+        Add(ro_plane_grid[1],m3d,rotate(HGL_RAD_90,0,1,0));
+        Add(ro_plane_grid[2],m3d,rotate(HGL_RAD_90,1,0,0));
+
+        render_root.RefreshMatrix();
+        render_root.ExpendToList(&render_list);
+
+        return(true);
+    }
+
 public:
 
     bool Init()
diff --git a/example/Vulkan/OffscreenRender.cpp b/example/Vulkan/OffscreenRender.cpp
index 164131a6..f6a00c72 100644
--- a/example/Vulkan/OffscreenRender.cpp
+++ b/example/Vulkan/OffscreenRender.cpp
@@ -22,7 +22,7 @@ class TestApp:public CameraAppFramework
     struct:public RenderObject
     {        
         RenderTarget *      render_taget        =nullptr;
-        GPUCmdBuffer *      command_buffer      =nullptr;
+        RenderCommand *     command_buffer      =nullptr;
         
         Pipeline *          pipeline            =nullptr;
         RenderableInstance *renderable_instance =nullptr;
@@ -82,7 +82,7 @@ public:
         os.render_taget=device->CreateRenderTarget(&fbi);
         if(!os.render_taget)return(false);
 
-        os.command_buffer=device->CreateCommandBuffer(fbi.GetAttachmentCount());
+        os.command_buffer=device->CreateRenderCommandBuffer();
         if(!os.command_buffer)return(false);
         
         os.material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/VertexColor2D"));
diff --git a/example/common/VulkanAppFramework.h b/example/common/VulkanAppFramework.h
index 4d2bf130..0520a511 100644
--- a/example/common/VulkanAppFramework.h
+++ b/example/common/VulkanAppFramework.h
@@ -53,7 +53,7 @@ protected:
 
             int32_t         swap_chain_count            =0;
 
-    GPUCmdBuffer **         cmd_buf                     =nullptr;
+    RenderCommand **        cmd_buf                     =nullptr;
 
             Color4f         clear_color;
 
@@ -166,23 +166,23 @@ public:
         {
             const VkExtent2D extent=sc_render_target->GetExtent();
 
-            cmd_buf=hgl_zero_new<GPUCmdBuffer *>(swap_chain_count);
+            cmd_buf=hgl_zero_new<RenderCommand *>(swap_chain_count);
 
             for(int32_t i=0;i<swap_chain_count;i++)
-                cmd_buf[i]=device->CreateCommandBuffer(2);
+                cmd_buf[i]=device->CreateRenderCommandBuffer();
         }
     }
 
-    bool BuildCommandBuffer(GPUCmdBuffer *cb,RenderPass *rp,Framebuffer *fb,RenderableInstance *ri)
+    bool BuildCommandBuffer(RenderCommand *cb,RenderPass *rp,Framebuffer *fb,RenderableInstance *ri)
     {   
         if(!ri)return(false);
 
         const IndexBuffer *ib=ri->GetIndexBuffer();
 
-        cb->SetClearColor(0,clear_color.r,clear_color.g,clear_color.b);
-
         cb->Begin();
             cb->BindFramebuffer(rp,fb);
+            cb->SetClearColor(0,clear_color.r,clear_color.g,clear_color.b);
+            cb->BeginRenderpass();
                 cb->BindPipeline(ri->GetPipeline());
                 cb->BindDescriptorSets(ri->GetDescriptorSets());
                 cb->BindVAB(ri);
@@ -198,7 +198,7 @@ public:
         return(true);
     }
 
-    void BuildCommandBuffer(GPUCmdBuffer *cb,RenderTarget *rt,RenderableInstance *ri)
+    void BuildCommandBuffer(RenderCommand *cb,RenderTarget *rt,RenderableInstance *ri)
     {
         if(!cb||!rt||!ri)
             return;
@@ -234,14 +234,14 @@ public:
     {
         if(!rl)return;
 
-        GPUCmdBuffer *cb=cmd_buf[index];
-        
-        cb->SetClearColor(0,clear_color.r,clear_color.g,clear_color.b);
+        RenderCommand *cb=cmd_buf[index];
 
         cb->Begin();
-        cb->BindFramebuffer(sc_render_target->GetRenderPass(),sc_render_target->GetFramebuffer(index));
-        rl->Render(cb);
-        cb->EndRenderPass();
+        cb->BindFramebuffer(sc_render_target->GetRenderPass(),sc_render_target->GetFramebuffer(index));        
+        cb->SetClearColor(0,clear_color.r,clear_color.g,clear_color.b);
+            cb->BeginRenderpass();
+                rl->Render(cb);
+            cb->EndRenderPass();
         cb->End();
     }
 
diff --git a/inc/hgl/graph/RenderList.h b/inc/hgl/graph/RenderList.h
index dedc4c94..81fe6e36 100644
--- a/inc/hgl/graph/RenderList.h
+++ b/inc/hgl/graph/RenderList.h
@@ -11,7 +11,7 @@ namespace hgl
     {
         class RenderList
         {
-            GPUCmdBuffer *cmd_buf;
+            RenderCommand *cmd_buf;
 
         private:
 
@@ -41,7 +41,7 @@ namespace hgl
             void Add    (SceneNode *node)  {if(node)scene_node_list.Add(node);}
             void Clear  ()                 {scene_node_list.ClearData();}
 
-            bool Render(GPUCmdBuffer *);
+            bool Render (RenderCommand *);
         };//class RenderList
     }//namespace graph
 }//namespace hgl
diff --git a/inc/hgl/graph/VK.h b/inc/hgl/graph/VK.h
index 19f05c17..9d64a353 100644
--- a/inc/hgl/graph/VK.h
+++ b/inc/hgl/graph/VK.h
@@ -45,6 +45,8 @@ using VAB=VertexAttribBuffer;
 class IndexBuffer;
 
 class GPUCmdBuffer;
+class RenderCommand;
+class TextureCommand;
 class RenderPass;
 class GPUFence;
 class GPUSemaphore;
diff --git a/inc/hgl/graph/VKCommandBuffer.h b/inc/hgl/graph/VKCommandBuffer.h
index 70f042fd..27372c06 100644
--- a/inc/hgl/graph/VKCommandBuffer.h
+++ b/inc/hgl/graph/VKCommandBuffer.h
@@ -9,27 +9,44 @@ VK_NAMESPACE_BEGIN
 //所以我们将每个对象的独立变换矩阵存在push constant中
 class GPUCmdBuffer
 {
+protected:
+
     VkDevice device;
     VkCommandPool pool;
     VkCommandBuffer cmd_buf;
 
+public:
+
+    GPUCmdBuffer(VkDevice dev,VkCommandPool cp,VkCommandBuffer cb);
+    virtual ~GPUCmdBuffer();
+
+    operator VkCommandBuffer(){return cmd_buf;}
+    operator const VkCommandBuffer()const{return cmd_buf;}
+    operator const VkCommandBuffer *()const{return &cmd_buf;}
+    
+    bool Begin();
+    bool End(){return(vkEndCommandBuffer(cmd_buf)==VK_SUCCESS);}
+};//class GPUCmdBuffer
+
+class RenderCommand:public GPUCmdBuffer
+{
     uint32_t cv_count;
     VkClearValue *clear_values;
     VkRect2D render_area;
     VkViewport viewport;
 
     float default_line_width;
-
+    
+    Framebuffer *fbo;
+    RenderPassBeginInfo rp_begin;
     VkPipelineLayout pipeline_layout;
 
+    void SetFBO(Framebuffer *);
+
 public:
 
-    GPUCmdBuffer(VkDevice dev,const uint32_t att_count,VkCommandPool cp,VkCommandBuffer cb);
-    ~GPUCmdBuffer();
-
-    operator VkCommandBuffer(){return cmd_buf;}
-    operator const VkCommandBuffer()const{return cmd_buf;}
-    operator const VkCommandBuffer *()const{return &cmd_buf;}
+    RenderCommand(VkDevice dev,VkCommandPool cp,VkCommandBuffer cb);
+    ~RenderCommand();
 
     void SetRenderArea(const VkRect2D &ra){render_area=ra;}
     void SetRenderArea(const VkExtent2D &);
@@ -59,15 +76,10 @@ public:
 
     //以上设定在Begin开始后即不可改变
 
-    bool Begin();
-
-    template<typename ...ARGS> void PipelineBarrier     (ARGS...args){vkCmdPipelineBarrier  (cmd_buf,args...);}
-    template<typename ...ARGS> void CopyBufferToImage   (ARGS...args){vkCmdCopyBufferToImage(cmd_buf,args...);}
-    template<typename ...ARGS> void CopyImageToBuffer   (ARGS...args){vkCmdCopyImageToBuffer(cmd_buf,args...);}
-    template<typename ...ARGS> void BlitImage           (ARGS...args){vkCmdBlitImage        (cmd_buf,args...);}
-
     bool BindFramebuffer(RenderPass *rp,Framebuffer *fb);
 
+    bool BeginRenderpass();
+
     bool BindPipeline(Pipeline *p)
     {
         if(!p)return(false);
@@ -120,7 +132,18 @@ public: //draw
     void NextSubpass(){vkCmdNextSubpass(cmd_buf,VK_SUBPASS_CONTENTS_INLINE);}
 
     void EndRenderPass(){vkCmdEndRenderPass(cmd_buf);}
-    bool End(){return(vkEndCommandBuffer(cmd_buf)==VK_SUCCESS);}
-};//class GPUCmdBuffer
+};//class RenderCommand:public GPUCmdBuffer
+
+class TextureCommand:public GPUCmdBuffer
+{
+public:
+
+    using GPUCmdBuffer::GPUCmdBuffer;
+
+    template<typename ...ARGS> void PipelineBarrier     (ARGS...args){vkCmdPipelineBarrier  (cmd_buf,args...);}
+    template<typename ...ARGS> void CopyBufferToImage   (ARGS...args){vkCmdCopyBufferToImage(cmd_buf,args...);}
+    template<typename ...ARGS> void CopyImageToBuffer   (ARGS...args){vkCmdCopyImageToBuffer(cmd_buf,args...);}
+    template<typename ...ARGS> void BlitImage           (ARGS...args){vkCmdBlitImage        (cmd_buf,args...);}
+};//class TextureCommand:public GPUCmdBuffer
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_VULKAN_COMMAND_BUFFER_INCLUDE
diff --git a/inc/hgl/graph/VKDevice.h b/inc/hgl/graph/VKDevice.h
index 9e7ebc67..c3614a2e 100644
--- a/inc/hgl/graph/VKDevice.h
+++ b/inc/hgl/graph/VKDevice.h
@@ -31,11 +31,15 @@ class GPUDevice
     GPUDeviceAttribute *attr;
 
     GPUQueue *textureSQ;
-    GPUCmdBuffer *texture_cmd_buf;
+    TextureCommand *texture_cmd_buf;
 
     Swapchain *swapchain;
     SwapchainRenderTarget *swapchainRT;
 
+private:
+
+    VkCommandBuffer CreateCommandBuffer();
+
     bool CreateSwapchainColorTexture();
     bool CreateSwapchainDepthTexture();
 
@@ -180,7 +184,8 @@ public: //shader & material
 
 public: //Command GPUBuffer 相关
 
-    GPUCmdBuffer *  CreateCommandBuffer(const uint32_t attachment_count);
+    RenderCommand * CreateRenderCommandBuffer();
+    TextureCommand *CreateTextureCommandBuffer();
     
     RenderPass *    CreateRenderPass(   const List<VkAttachmentDescription> &desc_list,
                                         const List<VkSubpassDescription> &subpass,
diff --git a/inc/hgl/graph/VKRenderTarget.h b/inc/hgl/graph/VKRenderTarget.h
index 4c295037..31ccf795 100644
--- a/inc/hgl/graph/VKRenderTarget.h
+++ b/inc/hgl/graph/VKRenderTarget.h
@@ -64,7 +64,7 @@ public: //pipeline
 public: // command buffer
 
             GPUSemaphore *  GetRenderCompleteSemaphore  (){return render_complete_semaphore;}
-    virtual bool            Submit                      (GPUCmdBuffer *,GPUSemaphore *present_complete_semaphore=nullptr);
+    virtual bool            Submit                      (RenderCommand *,GPUSemaphore *present_complete_semaphore=nullptr);
 };//class RenderTarget
 
 /**
diff --git a/src/RenderDevice/CMakeLists.txt b/src/RenderDevice/CMakeLists.txt
index 40abcb00..d95e665b 100644
--- a/src/RenderDevice/CMakeLists.txt
+++ b/src/RenderDevice/CMakeLists.txt
@@ -75,7 +75,6 @@ SET(VK_RENDER_PASS_SOURCE   ${VK_INCLUDE_PATH}/VKFramebuffer.h
                             ${VK_INCLUDE_PATH}/VKRenderPass.h
                             ${VK_INCLUDE_PATH}/VKRenderTarget.h
                             ${VK_INCLUDE_PATH}/VKSwapchain.h
-                            ${VK_INCLUDE_PATH}/VKCommandBuffer.h
                             ${VK_INCLUDE_PATH}/VKSemaphore.h
                             ${VK_INCLUDE_PATH}/VKFence.h
                             VKQueue.cpp
@@ -88,10 +87,16 @@ SET(VK_RENDER_PASS_SOURCE   ${VK_INCLUDE_PATH}/VKFramebuffer.h
                             VKRenderTargetPipeline.cpp
                             VKSwapchainRenderTarget.cpp
                             VKSwapchain.cpp
-                            VKCommandBuffer.cpp)
+                            )
 
 SOURCE_GROUP("Render Pass" FILES ${VK_RENDER_PASS_SOURCE})
 
+SET(VK_CMD_BUFFER_SOURCE    ${VK_INCLUDE_PATH}/VKCommandBuffer.h
+                            VKCommandBuffer.cpp
+                            VKCommandBufferRender.cpp)
+
+SOURCE_GROUP("Command Buffer" FILES ${VK_CMD_BUFFER_SOURCE})
+
 SET(VK_RENDERABLE_SOURCE    ${VK_INCLUDE_PATH}/VKVertexAttributeBinding.h
                             ${VK_INCLUDE_PATH}/VKRenderable.h
                             ${VK_INCLUDE_PATH}/VKRenderableInstance.h
@@ -122,5 +127,6 @@ add_cm_library(ULRE.VulkanRender "ULRE" ${VK_RR_SOURCE}
                                         ${VK_TEXTURE_SOURCE}
                                         ${VK_MATERIAL_SOURCE}
                                         ${VK_RENDER_PASS_SOURCE}
+                                        ${VK_CMD_BUFFER_SOURCE}
                                         ${VK_RENDERABLE_SOURCE}
                                         ${VK_RENDER_DEVICE_SOURCE})
diff --git a/src/RenderDevice/VKCommandBuffer.cpp b/src/RenderDevice/VKCommandBuffer.cpp
index c5cdb96f..c16e8fbe 100644
--- a/src/RenderDevice/VKCommandBuffer.cpp
+++ b/src/RenderDevice/VKCommandBuffer.cpp
@@ -1,59 +1,18 @@
 #include<hgl/graph/VKCommandBuffer.h>
-#include<hgl/graph/VKRenderPass.h>
-#include<hgl/graph/VKFramebuffer.h>
-#include<hgl/graph/VKRenderTarget.h>
-#include<hgl/graph/VKPipeline.h>
-#include<hgl/graph/VKBuffer.h>
-#include<hgl/graph/VKMaterial.h>
-#include<hgl/graph/VKRenderable.h>
-#include<hgl/graph/VKRenderableInstance.h>
-#include<hgl/graph/VKDescriptorSets.h>
 
 VK_NAMESPACE_BEGIN
-GPUCmdBuffer::GPUCmdBuffer(VkDevice dev,const uint32_t atta_count,VkCommandPool cp,VkCommandBuffer cb)
+GPUCmdBuffer::GPUCmdBuffer(VkDevice dev,VkCommandPool cp,VkCommandBuffer cb)
 {
     device=dev;
     pool=cp;
     cmd_buf=cb;
-
-    cv_count=atta_count;
-
-    if(cv_count>0)
-    {
-        clear_values=hgl_zero_new<VkClearValue>(cv_count);
-
-        clear_values[cv_count-1].depthStencil.depth = 1.0f;
-        clear_values[cv_count-1].depthStencil.stencil = 0;
-    }
-    else
-    {
-        clear_values=nullptr;
-    }
-
-    render_area.offset.x=0;
-    render_area.offset.y=0;
-    render_area.extent.width=0;
-    render_area.extent.height=0;
-
-    default_line_width=1.0;
-
-    pipeline_layout=VK_NULL_HANDLE;
 }
 
 GPUCmdBuffer::~GPUCmdBuffer()
 {
-    delete[] clear_values;
-
     vkFreeCommandBuffers(device,pool,1,&cmd_buf);
 }
 
-void GPUCmdBuffer::SetRenderArea(const VkExtent2D &ext2d)
-{
-    render_area.offset.x=0;
-    render_area.offset.y=0;
-    render_area.extent=ext2d;
-}
-
 bool GPUCmdBuffer::Begin()
 {
     CommandBufferBeginInfo cmd_buf_info;
@@ -65,56 +24,4 @@ bool GPUCmdBuffer::Begin()
 
     return(true);
 }
-
-bool GPUCmdBuffer::BindFramebuffer(RenderPass *rp,Framebuffer *fb)
-{
-    RenderPassBeginInfo rp_begin;
-    
-    render_area.offset.x=0;
-    render_area.offset.y=0;
-    render_area.extent=fb->GetExtent();
-
-    rp_begin.renderPass         = *rp;
-    rp_begin.framebuffer        = *fb;
-    rp_begin.renderArea         = render_area;
-    rp_begin.clearValueCount    = cv_count;
-    rp_begin.pClearValues       = clear_values;
-
-    vkCmdBeginRenderPass(cmd_buf, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
-
-    viewport.x          = 0;
-    viewport.y          = 0;
-    viewport.minDepth   = 0.0f;
-    viewport.maxDepth   = 1.0f;
-    viewport.width      = render_area.extent.width;
-    viewport.height     = render_area.extent.height;
-
-    vkCmdSetViewport(cmd_buf,0,1,&viewport);
-    vkCmdSetScissor(cmd_buf,0,1,&render_area);
-    vkCmdSetLineWidth(cmd_buf,default_line_width);
-
-    pipeline_layout=VK_NULL_HANDLE;
-
-    return(true);
-}
-
-bool GPUCmdBuffer::BindVAB(RenderableInstance *ri)
-{
-    if(!ri)
-        return(false);
-
-    const uint count=ri->GetBufferCount();
-
-    if(count<=0)
-        return(false);
-
-    vkCmdBindVertexBuffers(cmd_buf,0,count,ri->GetBuffer(),ri->GetBufferSize());
-
-    IndexBuffer *indices_buffer=ri->GetIndexBuffer();
-
-    if(indices_buffer)
-        vkCmdBindIndexBuffer(cmd_buf,indices_buffer->GetBuffer(),ri->GetIndexBufferOffset(),VkIndexType(indices_buffer->GetType()));
-
-    return(true);
-}
 VK_NAMESPACE_END
diff --git a/src/RenderDevice/VKDevice.cpp b/src/RenderDevice/VKDevice.cpp
index 55b75b39..1722dc74 100644
--- a/src/RenderDevice/VKDevice.cpp
+++ b/src/RenderDevice/VKDevice.cpp
@@ -47,7 +47,7 @@ bool GPUDevice::Resize(const VkExtent2D &extent)
     if(!CreateSwapchain(extent))
         return(false);
 
-    texture_cmd_buf=CreateCommandBuffer(0);
+    texture_cmd_buf=CreateTextureCommandBuffer();
     textureSQ=new GPUQueue(this,attr->graphics_queue,1);
 
     swapchainRT=new SwapchainRenderTarget(this,swapchain);
@@ -55,10 +55,10 @@ bool GPUDevice::Resize(const VkExtent2D &extent)
     return(true);
 }
 
-GPUCmdBuffer *GPUDevice::CreateCommandBuffer(const uint32_t attachment_count)
+VkCommandBuffer GPUDevice::CreateCommandBuffer()
 {
     if(!attr->cmd_pool)
-        return(nullptr);
+        return(VK_NULL_HANDLE);
 
     CommandBufferAllocateInfo cmd;
 
@@ -71,9 +71,27 @@ GPUCmdBuffer *GPUDevice::CreateCommandBuffer(const uint32_t attachment_count)
     VkResult res=vkAllocateCommandBuffers(attr->device,&cmd,&cmd_buf);
 
     if(res!=VK_SUCCESS)
-        return(nullptr);
+        return(VK_NULL_HANDLE);
 
-    return(new GPUCmdBuffer(attr->device,attachment_count,attr->cmd_pool,cmd_buf));
+    return cmd_buf;
+}
+
+RenderCommand *GPUDevice::CreateRenderCommandBuffer()
+{
+    VkCommandBuffer cb=CreateCommandBuffer();
+
+    if(cb==VK_NULL_HANDLE)return(nullptr);
+
+    return(new RenderCommand(attr->device,attr->cmd_pool,cb));
+}
+
+TextureCommand *GPUDevice::CreateTextureCommandBuffer()
+{
+    VkCommandBuffer cb=CreateCommandBuffer();
+
+    if(cb==VK_NULL_HANDLE)return(nullptr);
+
+    return(new TextureCommand(attr->device,attr->cmd_pool,cb));
 }
 
 /**
diff --git a/src/RenderDevice/VKDeviceRenderTarget.cpp b/src/RenderDevice/VKDeviceRenderTarget.cpp
index 9267ba5c..6b7b69f0 100644
--- a/src/RenderDevice/VKDeviceRenderTarget.cpp
+++ b/src/RenderDevice/VKDeviceRenderTarget.cpp
@@ -44,15 +44,10 @@ RenderTarget *GPUDevice::CreateRenderTarget(const FramebufferInfo *fbi,const uin
 
     if(fb)
     {
-        GPUCmdBuffer *cb=CreateCommandBuffer(fb->GetAttachmentCount());
+        RenderTarget *rt=new RenderTarget(this,rp,fb,color_texture_list,color_count,depth_texture,fence_count);
 
-        if(cb)
-        {
-            RenderTarget *rt=new RenderTarget(this,rp,fb,color_texture_list,color_count,depth_texture,fence_count);
-
-            color_texture_list.DiscardObject();
-            return rt;
-        }
+        color_texture_list.DiscardObject();
+        return rt;
     }
 
     SAFE_CLEAR(depth_texture);
diff --git a/src/RenderDevice/VKDeviceTexture.cpp b/src/RenderDevice/VKDeviceTexture.cpp
index 4a2297b5..746e4809 100644
--- a/src/RenderDevice/VKDeviceTexture.cpp
+++ b/src/RenderDevice/VKDeviceTexture.cpp
@@ -50,7 +50,7 @@ namespace
         }
     };//
 
-    void GenerateMipmaps(GPUCmdBuffer *texture_cmd_buf,VkImage image,VkImageAspectFlags aspect_mask,const int32_t width,const int32_t height,const uint32_t mipLevels)
+    void GenerateMipmaps(TextureCommand *texture_cmd_buf,VkImage image,VkImageAspectFlags aspect_mask,const int32_t width,const int32_t height,const uint32_t mipLevels)
     {
     //VkImage image, VkFormat imageFormat, int32_t texWidth, int32_t texHeight, uint32_t mipLevels) {
         // Check if image format supports linear blitting
diff --git a/src/RenderDevice/VKRenderTarget.cpp b/src/RenderDevice/VKRenderTarget.cpp
index db081c70..c3c66e9b 100644
--- a/src/RenderDevice/VKRenderTarget.cpp
+++ b/src/RenderDevice/VKRenderTarget.cpp
@@ -62,7 +62,7 @@ RenderTarget::~RenderTarget()
     SAFE_CLEAR(render_pass);
 }
 
-bool RenderTarget::Submit(GPUCmdBuffer *command_buffer,GPUSemaphore *present_complete_semaphore)
+bool RenderTarget::Submit(RenderCommand *command_buffer,GPUSemaphore *present_complete_semaphore)
 {
     return this->GPUQueue::Submit(*command_buffer,present_complete_semaphore,render_complete_semaphore);
 }
diff --git a/src/SceneGraph/RenderList.cpp b/src/SceneGraph/RenderList.cpp
index 0d7100cb..6f3bd6a7 100644
--- a/src/SceneGraph/RenderList.cpp
+++ b/src/SceneGraph/RenderList.cpp
@@ -85,7 +85,7 @@ namespace hgl
             }
         }
 
-        bool RenderList::Render(GPUCmdBuffer *cb) 
+        bool RenderList::Render(RenderCommand *cb) 
         {
             if(!cb)
                 return(false);