With CD Projekt Red's reputation for making ambitious games, there has never really been any doubt that The Witcher 4 will be technically impressive, but a new tech demo from the Game Developers Conference sheds light on just how intricate its landscapes may be. GDC 2026 took place last month, but a presentation was recently made public that gives us a better look at The Witcher 4's impressive path tracing and a rendering technique called megageometry.
A specific branch of megageometry called megageo foliage will be used in The Witcher 4, and the tech was showcased at GDC in a very impressive demo from NVIDIA. The video shows a landscape that contains over 60 million plants, including one million trees, all rendered in-memory, meaning there's no asset streaming. Every single polygon is rendered as individual geometry, even individual pine needles, meaning some trees in the tech demo have over 10 million polygons.
This isn't necessarily a landscape from The Witcher 4, but NVIDIA's tech demo does use The Witcher 4's tree assets, provided by CD Projekt Red. With other processes that a game like TW4 has to conduct in the background, it seems unlikely that the game's forests...
