I've been reading this, and discovered that [url=http://www.pbr-book.org/3ed-2018/Introd ... l#fig:lux1]the book reps Luxrender, but directs people to the old website. I doubt the authors would pay much attention to me telling them that Luxrender is now over here, but should someone with a bit more (which is to say "some", as compared to my "none") pedigree with the project let them know?