ii0/reducible

Repository containing all code for the videos on the Reducible YouTube channel

Reducible

Repository containing all code for the videos on the Reducible YouTube channel. This entire repository makes use of 3blue1brown's open source library manim: https://github.com/3b1b/manim In the more recent videos, I have used Manim Community edition: https://www.manim.community/

Some updates to the Repo as of October 31, 2021

On the latest video relating to marching squares (2021/MarchingSquares/scene.py, I have decided to start using the Manim Community version. The version has been well-maintained by a group of developers and more documentation on setup of Manim Community can be found here: https://www.manim.community/ All other videos utilize an old version of the manim repo from https://github.com/3b1b/manim

In general, I avoided changing too much of the source of manim to minimize the issues others may have trying out the code. There is one case where I changed the source code for manim for the graph theory videos. If you run into any issues with running the graph theory videos, see this issue: nipunramk#1. Another case where I have modified the source library for manim is adding colors in the manimlib/constants.py. If you see colors not defined when trying to run the code, you must define the hex value of the color inside the COLOR_MAP dictionary in that file.

Some notes on changes to repository as of March 23, 2021

For the 2021/GJK/gjk.py code, which contains all the animations for the GJK video, one new dependency is required in addition to manim dependencies: the Python Shapely library (used for some animations involving concave shape intersection and union -- a problem I tried hacking on but ran into too many issues to be able to use in a video -- this library saved the day).

Installation instructions for Shapely can be found here: https://pypi.org/project/Shapely/ Documentation can be found here: https://shapely.readthedocs.io/en/stable/manual.html

Additionally, I have updated the manimlib from the original 2019 version I was using for my first few videos to the more recent May 2020 version that works quite well for the more recent videos. I have made some minor additions/modifications to the library for my own use cases as well. Note, this version of manim still uses Cairo as a backend. There are several versions of manim now, the one I recommend for most people is the Manim Community Edition (CE) which has good documentation and good community support. I started this channel before this existed so I spent a lot of time digging into the library on my own, but now, with Manim CE, development and support is significantly easier.

There is also a ManimGL version that uses openGL https://github.com/3b1b/manim. I am still figuring out this version of manim and I may move towards it in the future for some projects I have in mind. I do not recommend starting with the openGL version, since it is still not quite stable and still a work in progress on Grant's side of things as far as I know. It is also much trickier to learn, but that's just my opinion.