Demos: https://grantkot.com/ Ray-Box Paper (Majercik et al.): https://research.nvidia.com/labs/rtr/publication/majercik2018raybox/ Ray-Box Video: https://www.youtube.com/watch?v=Xq-awo2dAnQ Inigo Quilez Intersectors: https://iquilezles.org/articles/intersectors/