Left-handed vs right-handed coordinate systems. I prefer right-handed, but for some reason most of computer graphics seem to have adopted left-handed. That was

Left-handed vs right-handed coordinate systems. I prefer right-handed, but for some reason most of computer graphics seem to have adopted left-handed. That was the opposite of fun when I was noodling with writing an OpenGL-based rendering engine for a "fly a spaceship around a 3D maze" game, decade and a half ago. As to why I prefer right-handed? The lin-alg textbook I had at uni uses a right-handed coordinate system for what it calls "the perceivable room" (yes, it is "the book with the cow on", for those in the know).