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Nvidia Updates RTX Remix with Improved Compression and AI

WireByte Staff · June 17, 2026

Nvidia has released RTX Remix 1.5, an update to its modding platform that improves compression and adds AI-powered features. The update reduces mod file sizes by up to 37% and introduces 'Smooth Normals' for more natural-looking geometry. Supported games include Portal with RTX and Half-Life 2 RTX demo.

Key points

  • Nvidia released RTX Remix 1.5, an update to its modding platform for old games.
  • The update improves compression with RTX IO, reducing mod file sizes by up to 37%.
  • Supported games include Portal with RTX, Portal: Prelude RTX, and Half-Life 2 RTX demo.
  • RTX Remix 1.5 also adds 'Smooth Normals' for more natural-looking geometry.
  • The update introduces 'RTX Remix Skills' Agents, a form of agentic AI.

Nvidia has released RTX Remix 1.5, an update to its modding platform designed to retrofit old games with modern lighting and materials. The update improves compression with RTX IO, reducing mod file sizes by up to 37%. This feature was first introduced in 2020 with the RTX 30 series, but is now integrated in RTX Remix.

RTX Remix 1.5 also adds 'Smooth Normals' for more natural-looking geometry. This feature has been highly requested by the community and is expected to improve the overall gaming experience.

The update also introduces 'RTX Remix Skills' Agents, a form of agentic AI. This feature is expected to bring a new level of realism to old games.

The update is currently supported by Portal with RTX, Portal: Prelude RTX, and Half-Life 2 RTX demo. These games have seen significant reductions in file size, with the Half-Life 2 RTX demo shrinking from 80GB to 50GB.

Sources

WireByte Staff — Editorial Team

The WireByte editorial team synthesises technology news from multiple primary sources, verifies the facts, and links every source. Articles are produced with AI assistance and reviewed under our editorial policy.