

Steam News · May 19, 2025
Today, Portal with RTX is being upgraded with DLSS 4 with Multi Frame Generation, multiplying framerates, as well as the transformer model for Ray Reconstruction and DLAA, enabling even better image quality. Portal with RTX is also adding RTX Neural Radiance Cache (NRC), a neural shader that improves indirect lighting, as well as a bevy of performance optimizations. For more details, read the GeFo...
Steam News · Mar 14, 2024
Today, Portal with RTX is upgrading to NVIDIA DLSS 3.5, leveraging its AI-powered Ray Reconstruction technology to improve the fidelity of full ray tracing, and the responsiveness of dynamic lighting effects. And with the introduction of NVIDIA RTX IO, texture loading times are accelerated, and the file size of the game has been reduced. Read on to learn more. NVIDIA DLSS 3.5 With Ray Reconstructi...
Steam News · Mar 14, 2024
Release Notes: Added NVIDIA DLSS 3.5 with Ray Reconstruction Added NVIDIA RTX IO support Update dxvk-remix to 0.4 Added POM materials Fixed content issues Optimized CPU perf New “secret” cubes Numerous bug fixes and overall improvements to stability Source Engine: Updated gameinfo text to allow for main menu logo Added gamelogo.res to account for main menu logo parameters Added new portal_rtx.vmt ...
Steam News · Jul 18, 2023
Portal remains a timeless classic; in December we released Portal with RTX, a fully ray-traced reimagining of Valve’s award winning game, which used the performance multiplication of NVIDIA DLSS 3 to power the most realistic path-traced lighting ever seen in a real-time game. Portal with RTX was created using NVIDIA RTX Remix, a free, upcoming modding platform built on NVIDIA Omniverse, which enab...
Steam News · Apr 14, 2023
Bugfixes: Fix for source eye materials when rendered in dx7 mode Fix for "Failed to lock vertex buffer" error when water materials are present
Steam News · Dec 22, 2022
We are rolling out a patch to address certain stability issues, bugs, and performance. We’ve introduced several new graphical settings, and optimized graphical presets based on user hardware. These changes should improve performance for the majority of RTX GPUs (RTX 20 series and greater). To align with these new settings, the default settings are set to “Ultra” for RTX 40 Series GPU, “High” for R...
Steam News · Dec 11, 2022
Portal with RTX offers a preview of gaming’s future, where every frame of gameplay is rendered with stunning full ray tracing - an advanced, GPU-intensive (see recommended & minimum specs here), version of ray tracing referred to as “path tracing” - which unifies all lighting effects such as shadows, reflections, global illumination, refractions and more into a single algorithm. We have seen your ...
Steam News · Dec 8, 2022
Portal with RTX free DLC is now available, featuring full ray tracing, performance boosting NVIDIA DLSS 3 , and the low latency with NVIDIA Reflex. Portal with RTX is enhanced with full ray tracing, an advanced, GPU-intensive (see recommended & minimum specs here), version of ray tracing referred to as “path tracing” which unifies all lighting effects such as shadows, reflections, global illuminat...