At GDC 2026, NVIDIA and CD Projekt RED showed a demo of the Polish studio’s The Witcher 4 using NVIDIA’s RTX Mega Geometry to path trace forests for the first time. Now, NVIDIA has released the full video replay of the GDC 2026 session ‘The Future of Path Tracing | Best Practices, Optimizations & Future Standards’, which includes lots of interesting details on that The Witcher 4/RTX Mega Geometry demo. Martin Stich, Senior Director of Engineering at NVIDIA, introduced the company’s latest work based on Mega Geometry: a level-of-detail system for foliage. He notes that no new APIs or hardware […]
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