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Re:Lines of bare C++: raytracing made simple by agbell on Sunday January 20, 2019 @09:03PM (#18957013)
There is a great pragmatic programmers book on building a ray tracer that just came out: https://pragprog.com/book/jbtracer/the-ray-tracer-challenge

Its langauge neutral, which is interesting.

Re:Lines of bare C++: raytracing made simple by vintagedave on Monday January 21, 2019 @06:36PM (#18964667)
This is by Jamis Buck! He wrote Mazes for Programmers, one of the best programming books I've ever read. It is clear and well-explained; you could write the code from the text description without seeing the code samples, which is incredibly rare.

I had no idea he'd written more. Going by author alone, this book is a must-buy.