A while back I read a text by DaVinci describing the process of drawing (if I can find it I will add a link) and his description seemed to me almost like he was

A while back I read a text by DaVinci describing the process of drawing (if I can find it I will add a link) and his description seemed to me almost like he was describing how a ray tracer works. This 3D sketch of his makes me think that if computers had existed, he could easily have been the first to have coded a ray tracer: http://codex-atlanticus.it/assets//2000/000R-710.jpg http://codex-atlanticus.it/assets//2000/000R-710.jpg