The published video primarily shows a comparison of the original version with the new one that supports RTX. The differences are visible to the naked eye. In addition to better graphics, of course, the title will also run much faster. You can watch the trailer below.
Ray-tracing support for Portal will be available on December 8 as free DLC for this title. Unfortunately, the game itself is already fully paid (recently, a very attractive promotion ended). This does not change the fact that the production itself is still great after fifteen years.
The portal debuted in 2007. During the game, we play the role of Chell, who wakes up in Aperture Science laboratories. It is subjected to various tests by GLaDOS, the artificial intelligence that runs the facility. In each subsequent room, which we get to, we have to solve a puzzle that opens the way to the next room. We solve all the puzzles using the portal gun. The device creates portals on flat white surfaces through which we can pass or carry objects.