420 {
421 float x = position.X * matrix.M11 + position.Y * matrix.M21 + position.Z * matrix.M31 + matrix.M41;
422 float y = position.X * matrix.M12 + position.Y * matrix.M22 + position.Z * matrix.M32 + matrix.M42;
423 float z = position.X * matrix.M13 + position.Y * matrix.M23 + position.Z * matrix.M33 + matrix.M43;
424 result.X = x;
425 result.Y = y;
426 result.Z = z;
427 }