RetroTracer is at this moment a copy of the raytracer code from the Realistic Ray Tracer book by Peter Shirley and Keith Morley. It is my C++ test bed and tutorial project to improve my programming skills. I do hope to add support for volumes (openvdb) and some of the other Open projects (openimageio, osl etc). The repository can be found at: https://bitbucket.org/Zulfiqar/retrotracer