This is a ray tracing implementation in C++, pretty much a re-implementation of an earlier attempt in Go
All implementation was pretty much the result of me manually typing out everything in the minibook Ray Tracing In One Weekend, but with an attempt at introducing some modern C++ features.
make
./raytracer-cpp > img.ppm
The program outputs portable pixmap format to the console/stdout, and so, the > symbol writes the output to a file.
Rendering a whole 1024 by 576 image takes around an 4 and half minutes on my 2020 M1 MacBook Pro. If you want something rendered quicker, change the nx and ny variables in main(), in main.c to something smaller than 1024 by 576 (perhaps 200 and 100, respectively).