RTX Remix 1.5 Brings New Packaging Workflow & Accessibility Features

Classic PC games are remembered for their incredible stories, characters and gameplay, but dated visuals can make them tough for modern players to enjoy. NVIDIA RTX Remix changes that. Built for RTX PCs, this modding platform uses cutting-edge path tracing to completely reimagine timeless titles, letting longtime fans and a new generation experience era-defining games in stunning detail.

Today’s release of RTX Remix 1.5 delivers a faster, more compatible Remix Runtime, and a streamlined mod packaging process within the Remix Toolkit. These latest updates are available now via GitHub, or you can download RTX Remix directly through the NVIDIA App.

Smooth Normals, a top requested community feature, is now available. It adds automatic smooth-normal generation for captured legacy geometry, making older assets look less blocky or faceted under path-traced lighting.

RTX IO is our high-performance storage technology that speeds up game loading and reduces CPU overhead. It allows games to better stream high-quality textures while you move around the world, and reduces install sizes. RTX Remix 1.5 includes new RTX IO compression options in the packaging workflow, including split-size presets from 1GB to 16GB.

Portal with RTX, Portal: Prelude RTX, and the Half-Life 2 RTX demo have officially integrated RTX IO. Thanks to this update, file sizes have dropped significantly: Portal with RTX has been reduced from 25 GB to 17 GB, while Half-Life 2 RTX has shrunk from 80 GB to 50 GB.

Lastly, RTX Remix 1.5 adds new and improved viewport light controls. Now, existing light manipulators are easier to manage through a unified viewport lights menu, with persistent toggles for manipulator visibility and intensity controls.

Building a Remix mod takes time and dedication. The typical Remix workflow involves checking compatibility, capturing scenes, rebuilding assets, applying post-processing, and QA’ing image quality and performance. Because this pipeline relies heavily on defined, manual steps, it is perfect for an AI agent to lend a hand.

We recently published several RTX Remix Skills, text-based instruction files that provide specific functional context to AI coding agents. These files include guides on creating feature branches, conducting unit tests, preparing merge requests, and much more. By making coding agents smarter, modders can accelerate the remastering process. This significantly lowers the barrier to entry: even without prior C++ or Python experience, users can act as creative directors, guiding AI agents to build meaningful upgrades within RTX Remix.

For example, modern games use programmable graphics pipelines that are incompatible with Remix. Converting these to a fixed-function pipeline is a difficult, time-consuming process. However, community members have leveraged agents powered by Remix Skills to automate compatibility checks and generate code, slashing workflow times from months to weeks.

This streamlined approach has already empowered the community to begin work on previously unsupported titles like Dark Souls, Dragon Age: Origins, and Titanfall 2. 

Getting started is easy:

1. Setup: Access your preferred AI coding agent, visit GitHub, and download the Remix agent instruction files
2. Fork: Identify the Remix repository you want to contribute to and create a copy
3. Prompt: Open your agent session and describe the feature you want in plain language
4. Iterate: Review the agent’s code, test it, and iterate on the results
5. Submit: Propose your code changes for a merge request

To make your own RTX mods, download NVIDIA RTX Remix from the Home screen of the NVIDIA app. And grab the Half-Life 2 RTX demo and Portal with RTX from Steam for an example of what’s possible with RTX Remix.

To find RTX Remix mods to download and play, we recommend ModDB and the RTX Remix Showcase Discord server.

And for news about future RTX Remix enhancements, new RTX games, RTX technologies, drivers, NVIDIA software, and more, return to GeForce.com regularly.