Optimizing meshoptimizer to process billions of triangles in minutes (2025)

Early this year, NVIDIA released their new raytracing technology, RTX Mega Geometry, alongside an impressive Zorah demo. This demo was distributed as a ~100 GB Unreal Engine scene - that can only be opened in a special branch of Unreal Engine, NvRTX. The demo showcased the application of new driver-exposed raytracing features, specifically clustered raytracing, in combination with Nanite clustered LOD pipeline - allowing to stream and display a very highly detailed scene with full raytracing wit