The first official RTX Source mod is here, and it's mind-blowing...
Go get Portal: Prelude RTX from Steam:
https://store.steampowered.com/app/2410180/Portal_Prelude_RTX/
Get the regular version of Portal: Prelude (Newly updated!):
https://www.moddb.com/mods/portal-prelude/downloads/portal-prelude-121
Check out Nvidia's documentation on RTX IO:
https://www.nvidia.com/en-us/geforce/news/rtx-io-for-geforce-gpus-available-now/
Don't want to play Prelude? Watch Longplays100's playthrough:
https://youtu.be/F9ATcAJZw8A
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Mitch Wensveen - https://twitter.com/Pharlumy
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#rtx #portal #remastered