This felt very real or close to real for me.
Here's a sample of it running: https://vimeo.com/93903230
Here's the link to he project: https://cdv.dei.uc.pt/photogrowth-ant-painting/
The other parts, the rasterization and vectorization, I haven't cleaned up to the point where the source isn't terribly embarrassing! One of the weird things about this project was the code became more of a means to an end than an artifact in itself, so it's littered with a lot of dead experiments, swear words, and so on.