public static Vector3 MultiplyMatrices(Vector4 vector4, Matrix4x3 matrix4X3) { float x = MultiplyVector4(vector4, matrix4X3.GetColumn(0)); float y = MultiplyVector4(vector4, matrix4X3.GetColumn(1)); float z = MultiplyVector4(vector4, matrix4X3.GetColumn(2)); return(new Vector3(x, y, z)); }