Building a Ray-Tracing 3D Renderer from ScratchOVER A WEEKEND I've always liked the idea of ray-tracing to render 3D images with crazy accuracy. On Saturday night (being a huge nerd) I decided I'd try to write one from scratch for the hell of it. By from scratch I mean I started with this C++ code in a text file: #include <stdlib.h> #include <stdio.h> int main() { return 0; } I used NO graphics li