ReduceM: Interactive and Memory Efficient Ray Tracing of Large Models
https://sgvr.kaist.ac.kr/publication/reducem-interactive-and-memory-efficient-ray-tracing-of-large-models/
Christian Lauterbach, Sung-eui Yoon, Min Tang, and and Dinesh Manocha 
Computer Graphics Forum (and Eurographics Symp. on Rendering), 2008