442 {
443 float x = normal.X * matrix.M11 + normal.Y * matrix.M21 + normal.Z * matrix.M31;
444 float y = normal.X * matrix.M12 + normal.Y * matrix.M22 + normal.Z * matrix.M32;
445 float z = normal.X * matrix.M13 + normal.Y * matrix.M23 + normal.Z * matrix.M33;
446 result.X = x;
447 result.Y = y;
448 result.Z = z;
449 }