Nvidia provides modtools for adding path tracing to old games

Nvidia has made its RTX Remix software open source available on GitHub. The software should be able to handle path traced lighting, DLSS and Nvidia Reflex in DirectX 8 and 9 titles. For example, Portal RTX was also created with the tool.

An important caveat is that the RTX Remix toolkit consists of two parts: the creator toolkit and the runtime. At the time of writing, Nvidia only has the runtime available on GitHub. This makes it possible to add path-traced lighting, DLSS and Reflex to a game, but adjusting surfaces and models, for example, is not yet an issue. In the readme, Nvidia writes that a mod maker “doesn’t need to be an expert,” but that “understanding some of the key concepts and components and how they are connected will make it easier to understand the workflow.”

Examples of games that have received Nvidia’s “RTX treatment” include Portal, Minecraft, and Quake II. The RTX Remix creator toolkit should be released “soon,” Nvidia said in a disclosure which has been put online by Videocardz, among others.

Interested users had already started using the Portal RTX binaries. It turned out that games running on DirectX 8 or 9 can also receive the same RTX treatment using those files. Users share their results and those of this new runtime at /r/RTXRemix.

Some of these tools are therefore not yet available.