diff --git a/inc/hgl/graph/vulkan/VKCommandBuffer.h b/inc/hgl/graph/vulkan/VKCommandBuffer.h
index 849cdae9..85f1679d 100644
--- a/inc/hgl/graph/vulkan/VKCommandBuffer.h
+++ b/inc/hgl/graph/vulkan/VKCommandBuffer.h
@@ -30,7 +30,9 @@ public:
     operator const VkCommandBuffer *()const{return &cmd_buf;}
 
     void SetRenderArea(const VkRect2D &ra){render_area=ra;}
+    void SetRenderArea(const VkExtent2D &);
     void SetViewport(const VkViewport &vp){viewport=vp;}
+
     void SetClearColor(uint32_t index,float r,float g,float b,float a=1.0f)
     {
         if(index>=cv_count)return;
diff --git a/src/RenderDevice/Vulkan/VKCommandBuffer.cpp b/src/RenderDevice/Vulkan/VKCommandBuffer.cpp
index 71c24f18..fdfb69a4 100644
--- a/src/RenderDevice/Vulkan/VKCommandBuffer.cpp
+++ b/src/RenderDevice/Vulkan/VKCommandBuffer.cpp
@@ -43,6 +43,13 @@ CommandBuffer::~CommandBuffer()
     vkFreeCommandBuffers(device,pool,1,&cmd_buf);
 }
 
+void CommandBuffer::SetRenderArea(const VkExtent2D &ext2d)
+{
+    render_area.offset.x=0;
+    render_area.offset.y=0;
+    render_area.extent=ext2d;
+}
+
 bool CommandBuffer::Begin()
 {
     VkCommandBufferBeginInfo cmd_buf_info;