Portal with RTX Coming in November, Supports Full Ray Tracing and DLSS 3

Free for all current owners, it will feature hi-res physically based textures, volumetric ray-tracing lighting that scatters fog, and much more.

Posted By | On 20th, Sep. 2022

Portal with RTX

To showcase the power of DLSS 3 and Nvidia’s recently announced RTX 40 Series, the company has worked with Valve to release Portal with RTX. Out in November, free for existing owners, it reimagines the entire game with full ray tracing. The tool to make it, Nvidia RTX Remix, will also launch with it to allow modders to add ray tracing to other titles.

As for Portal with RTX, it also features high resolution physically based textures which are hand-crafted and high-poly models. Nvidia DLSS 3 is used to enhance performance, while latency is reduced using Nvidia Reflex. The ray tracing applies to every light source, from global illumination indirect lighting to volumetric ray-traced lighting that scatters in fog and smoke with perfect shadows.

It also features some new Nvidia tech, like RTX Direct Illumination (RTXDI) for “countless direct light sources, big and small, each casting light and shadows.” There’s also Reservoir Spatio Temporal Importance Resampling Global Illumination (ReSTIR GI) which “enhances indirect light, enabling it to bathe a scene and illuminate dark corners that are not lit directly.” This is supposed to work “smarter” than past ray-traced global illumination tech.

Check out the comparison trailer below to see it all in action.


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