As I understand Euclideon haven't just rendered voxels for these infamous demos, since the amount of geometry is still too large for the 2010 PC with software raytracer and the model taking whole HDD and streaming non-stop, even with the prebaked lights. They instead did subreferencing inside their BVH to point to either dynamic generator or the instances of the pregenerated microgeometry (similar to reusing the same texture with polygonal graphics). So Euclideon could have even the dust particles on the ground. That is apparently very old trick. I remember it being used to prerender the backgrounds in Ecstatica (an old DOS video game). Am I correct? Then why have Euclideon generated so much hatred and controversy back then? The tech looks solid and was used previously for offline rendering. Euclideon people just brought it into realtime on consumer PCs.