Renderer with global illumination
Download latest version of CppUTest (https://github.com/cpputest/cpputest) and follow their Getting Started steps.
git clone https://github.com/RonnieNigash/The-Last-Toy.git
cd The-Last-Toy
make
./main
Global Illumination Wiki: (https://en.wikipedia.org/wiki/Global_illumination).
Ray Tracing Wiki: (https://en.wikipedia.org/wiki/Ray_tracing_(graphics)).