Billions of Triangles Redux

In early September, NVIDIA released an update to their vk_lod_clusters open-source sample, that - among other things - featured a new impressive Zorah scene as a glTF file. The demo showcased the application of new driver-exposed raytracing features, specifically clustered raytracing, in combination with Nanite-like clustered LOD pipeline - allowing to stream and display a very highly detailed scene with full pathtracing. Naturally, this piqued my curiosity - and led me to spend some time to improve support for hierarchical clustered LOD in meshoptimizer.

… Wait, this sounds familiar.