Nvidia and CD Projekt Red Bring RTX Mega Geometry Foliage to The Witcher 4
March 11, 2026
Nvidia revealed at GDC that it’s partnering with CD Projekt Red to introduce RTX Mega Geometry foliage to The Witcher 4. The core aim is to deliver more believable trees, forests, and environments by an advanced level-of-detail system that updates foliage scenes selectively. This approach is designed to cut memory usage and boost performance without sacrificing visual fidelity.
How Mega Geometry foliage works
- It uses a new level-of-detail scheme specifically for foliage, enabling dense clusters of plants and trees to be rendered with realistic lighting and movement.
- By selectively updating scenes, it can reduce how much data the hardware must juggle, helping to keep frame rates steady while preserving the look of intricate forests.
- The system supports advanced path-tracing lighting and shadows that respond to every tree and the position of light sources like the Sun, resulting in more authentic, dynamic environments.
What this means for The Witcher 4
- The Witcher 4 will reportedly feature fully path-traced forests, powered by RTX Mega Geometry foliage. This promises richer lighting, shadows, and environmental animation across expansive wooded areas.
- CD Projekt Red’s rendering engineer, Cezary Bella, indicated that the team is collaborating with Nvidia to bring these capabilities into the game, leveraging the foliage tech to achieve a highly detailed, real-time forest experience.
Open-source and ecosystem expectations
- Nvidia has said the technology will be open-source later this year, which could accelerate adoption across more titles beyond The Witcher 4.
- While the tech remains early in its rollout, the potential for improved realism in open-world forests is significant, especially for PC builds that can leverage Nvidia GPUs.
Platform considerations
- The Witcher 4 is expected to run on PC with Nvidia hardware to take full advantage of RTX Mega Geometry foliage, though console platforms may support different rendering approaches.
- PC enthusiasts might benefit from lower-than-expected costs for the PC version, as well as potential modding support and broader compatibility with handheld and desktop setups.
Looking ahead
- If Mega Geometry foliage delivers on its promises, we could see a new standard for forest realism in open-world RPGs, combining dense vegetation with real-time lighting without overwhelming hardware.
- The Witcher 4 remains one of the most anticipated releases, and the prospect of lifelike forests only heightens excitement for its visuals and gameplay.
Note: The original article included author notes and prompts to follow TechRadar on various platforms.