@ James
I am fan of Daniel Shiffman (I have seen all its videos! ... Yes i am maybe a little addict... :D

Free Processing (Java) & now Javascript Online (P5*Js) are truelly amazing coding progs!
Processing speeds * 3 than P5*Js for critical projects...
Alas not yet free times for play with them! :(

my little one :) (Drag & Drop an PNG image with a transparent bakground - best if it's 1024* 512 maxi)
https://editor.p5js.org/Pilou/full/y1GHaBqyT
another little one :)