praytracing
Python source code for Peter Shirley's Ray Tracing in One Weekend. Heavily documented for better understanding (at least for me).
Part of this documentation is having type anotations, in the spirit of the
original C++ code, because I find that it helps bridge the understanding between
a programming and mathematical perspective. To this end, this needs Python
3.6+ with mypy installed (see requirements.txt).
To check type consistency (assuming you have mypy in your path---use a virtualenv!):
mypy --ignore-missing-imports src/*.py
PyPy
Given the nature of this repo, this is notoriously slow when ran under CPython. I've tried using PyPy with this and it works surprisingly well. The performance gains using PyPy cannot be understated: the least gain I've seen is being at least twice as fast and on some scripts a gain of 7x-10x has been observed. Comparing CPython to PyPy is not the main objective of this repo though, so my benchmarks are quite scant at the moment, and may be dirty.
Use the PyPy3.6 v7.0.0-alpha release, which should be CPython 3.6-compatible. I have not yet succeded in installing mypy with PyPy but it parses, and works.