manimProjects

Playing around with manim - animation engine used by 3Blue1Brown

Installation

1. Clone Manim repository by 3b1b

git clone https://github.com/3b1b/manim.git

1. Follow the Installation instructions from here

2. Open constants.py and set MEDIA_DIR to point to the directory in your system where image and animation files will be written

   #Change this to your own directory
   MEDIA_DIR = os.path.join(
   os.path.expanduser('~'),
   "Dropbox (3Blue1Brown)/3Blue1Brown Team Folder"
   )
   

3. Try running the following: The -p is for previewing, meaning the the video file will automatically open when it is done rendering. Use -l for a faster rendering at a lower quality. Use -s to skip to the end and just show the final frame. Use -n (number) to skip ahead to the n’th animation of a scene. Use -f to show the file in directory.

   python3 extract_scene.py example_scenes.py SquareToCircle -pl
   

4. If this doesn’t work for you. Check the dependencies or check the issues page for your errors

Scripts and Demos

Gif demos of the scripts I have experimented with

Hello World

Hello World Script

Run:

python3 extract_scene.py scripts/hello_world.py HelloWorld -pl

We are calling the Python3 interpreter with the python3 command. The first argument extract_scene.py is the part of manim code that runs your script, imports necessary files and creates files. This argument will always be needed. The second argument scripts/hello_world.py is the name of the file with custom scripts. The third argument HelloWorld is the name of class for which you are creating the scene. A single file can contain multiple classes, you need to specify the class name for which you are creating the scene. The last arguments are well documented in installation section

Shape Transformations

Shape Transformation Script

Run:

python3 extract_scene.py scripts/shape_transformations.py ShapeTransformations -pl