diff --git a/Source/Core/VideoCommon/RenderBase.cpp b/Source/Core/VideoCommon/RenderBase.cpp
index 1a15f0aec0..688c7fc43b 100644
--- a/Source/Core/VideoCommon/RenderBase.cpp
+++ b/Source/Core/VideoCommon/RenderBase.cpp
@@ -151,6 +151,11 @@ std::unique_ptr<AbstractShader> Renderer::CreateShaderFromSource(ShaderStage sta
   return CreateShaderFromSource(stage, source.c_str(), source.size());
 }
 
+bool Renderer::EFBHasAlphaChannel() const
+{
+  return m_prev_efb_format == PEControl::RGBA6_Z24;
+}
+
 void Renderer::ClearScreen(const EFBRectangle& rc, bool colorEnable, bool alphaEnable, bool zEnable,
                            u32 color, u32 z)
 {
diff --git a/Source/Core/VideoCommon/RenderBase.h b/Source/Core/VideoCommon/RenderBase.h
index 6ee03a9156..af9c1a8972 100644
--- a/Source/Core/VideoCommon/RenderBase.h
+++ b/Source/Core/VideoCommon/RenderBase.h
@@ -224,6 +224,7 @@ public:
 
   PEControl::PixelFormat GetPrevPixelFormat() const { return m_prev_efb_format; }
   void StorePixelFormat(PEControl::PixelFormat new_format) { m_prev_efb_format = new_format; }
+  bool EFBHasAlphaChannel() const;
   VideoCommon::PostProcessing* GetPostProcessor() const { return m_post_processor.get(); }
   // Final surface changing
   // This is called when the surface is resized (WX) or the window changes (Android).