Hello @Ken_000,
New to Processing?
One of the firsts steps is doing some research.
Guidelines—Asking Questions < What has your research told you?
Choosing the right keywords will yield a myriad of results:
This forum has many topics related to this.
Once you start searching you will learn the correct terminology and can start to narrow it down with well chosen keywords.
The Processing website has tutorials, examples and references:
:)