move ClearBuffer def into .cpp

hw3d/Graphics.cpp

@@ -71,3 +71,9 @@ void Graphics::EndFrame()
 {
 	pSwap->Present( 1u,0u );
 }
+
+void Graphics::ClearBuffer( float red,float green,float blue ) noexcept
+{
+	const float color[] = { red,green,blue,1.0f };
+	pContext->ClearRenderTargetView( pTarget,color );
+}

hw3d/Graphics.h

@@ -10,11 +10,7 @@ public:
 	Graphics& operator=( const Graphics& ) = delete;
 	~Graphics();
 	void EndFrame();
-	void ClearBuffer( float red,float green,float blue ) noexcept
-	{
-		const float color[] = { red,green,blue,1.0f };
-		pContext->ClearRenderTargetView( pTarget,color );
-	}
+	void ClearBuffer( float red,float green,float blue ) noexcept;
 private:
 	ID3D11Device* pDevice = nullptr;
 	IDXGISwapChain* pSwap = nullptr;