Index: VulkanGame.vcxproj
===================================================================
--- VulkanGame.vcxproj	(revision eea05dd0d5866cd46d2b7307f6ebe7506aaf105a)
+++ VulkanGame.vcxproj	(revision 2c875042218c87beadd17e3e6a00ecd8ea2dc260)
@@ -134,4 +134,5 @@
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="blend-ref.cpp" />
     <ClCompile Include="game-gui-glfw.cpp" />
     <ClCompile Include="game-gui-sdl.cpp" />