https://blog.faceutil.com/2022/10/21/d3dx9_39-dll-%ec%98%a4%eb%a5%98-%ed%95%b4%ea%b2%b0-%eb%a6%ac%ea%b7%b8%ec%98%a4%eb%b8%8c%eb%a0%88%ec%a0%84%eb%93%9c-%eb%a1%a4-%ec%98%a4%eb%a5%98-%e3%82%8f/