diff --git a/example/Vulkan/Atomsphere.cpp b/example/Vulkan/Atomsphere.cpp
index 78033300..a990a27b 100644
--- a/example/Vulkan/Atomsphere.cpp
+++ b/example/Vulkan/Atomsphere.cpp
@@ -56,7 +56,7 @@ private:
 
     void CreateRenderObject()
     {
-        ro_sphere=CreateRenderableSphere(db,material,16);
+        ro_sphere=CreateRenderableSphere(db,material,128);
     }
     
     bool InitAtomsphereUBO(vulkan::DescriptorSets *desc_set,uint bindpoint)
diff --git a/inc/hgl/graph/vulkan/VKCommandBuffer.h b/inc/hgl/graph/vulkan/VKCommandBuffer.h
index bf045771..daf4579d 100644
--- a/inc/hgl/graph/vulkan/VKCommandBuffer.h
+++ b/inc/hgl/graph/vulkan/VKCommandBuffer.h
@@ -66,11 +66,21 @@ public:
         VkImage                                     dstImage,
         VkImageLayout                               dstImageLayout,
         uint32_t                                    regionCount,
-        const VkBufferImageCopy*                    pRegions)
+        const VkBufferImageCopy *                   pRegions)
     {
         vkCmdCopyBufferToImage(cmd_buf,srcBuffer,dstImage,dstImageLayout,regionCount,pRegions);
     }
 
+    void CopyImageToBuffer( 
+        VkImage                                     srcImage,
+        VkImageLayout                               srcImageLayout,
+        VkBuffer                                    dstBuffer,
+        uint32_t                                    regionCount,
+        const VkBufferImageCopy *                   pRegions)
+    {
+        vkCmdCopyImageToBuffer(cmd_buf,srcImage,srcImageLayout,dstBuffer,regionCount,pRegions);
+    }
+
     bool BeginRenderPass(RenderPass *rp,Framebuffer *fb);
 
     bool Bind(Pipeline *p)