L-Systems are indeed a very good way to get started. We didn't mention it in this article, but it could have been part of the first section. Our demo with cubes

L-Systems are indeed a very good way to get started. We didn't mention it in this article, but it could have been part of the first section. Our demo with cubes intensively used L-systems to organize and animate the cubes (it was briefly mentioned in the making-of - https://www.ctrl-alt-test.fr/2010/behind-incubation/ https://www.ctrl-alt-test.fr/2010/behind-incubation/).