Also what I was thinking of. Fabien Sanglard did a nice article[0] about a business card raytracer Andrew Kensler made awhile back, too (HN discussion[1]). [0]

Also what I was thinking of. Fabien Sanglard did a nice article[0] about a business card raytracer Andrew Kensler made awhile back, too (HN discussion[1]). [0] https://fabiensanglard.net/rayTracing_back_of_business_card/ https://fabiensanglard.net/rayTracing_back_of_business_card/ [1] https://news.ycombinator.com/item?id=6425714 https://news.ycombinator.com/item?id=6425714