This fantastic talk by tim holman got me into this field. p5 demos are a great introduction on how generative art can be done.
Would highly recommend p5.js, it's a fantastic framework for art & graphics in general.
I'm still early to the field, all my sketches are over at GitHub.
Some of my work
- Coding maths: A hidden gem, explains math needed to make art possible. Extremely succinct explanations on crucial topics.