Menger Sponge Fractal
based on the following tutorial: https://www.youtube.com/watch?v=LG8ZK-rRkXo&index=3&list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH&t=0s
and the result looks like:
based on a coding train tutorial
based on the following tutorial: https://www.youtube.com/watch?v=LG8ZK-rRkXo&index=3&list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH&t=0s
and the result looks like: