On April 12, NVIDIA released RTX Remix, a modding platform that allows you to create HD remasters of games. The company immediately shared the source code on GitHub.
So far, only the RTX Remix runtime environment is available to users, but in the near future NVIDIA is going to publish the Creator Toolkit in early access format. When exactly this will happen is not specified.
NVIDIA announced RTX Remix in September 2022. With the help of the platform, a Portal remaster with ray tracing support was created.