Andy worked on the CGI animation for the Matrix movies. CGSociety did an interesting article titled "Once a Mathematician, Always an Artist" on Lomas' artwork:
Although long interested in art forms created with genetic algorithms, Lomas began working on the software for “Aggregation” only two years ago. “I was scuba diving in Hawaii,” he says, “and seeing corals and other beautiful natural things underwater. That was the inspiration. I began thinking about how simple a rule could be to generate a complex form.” The inspiration for the rule came from a base algorithm called “diffusion limited aggregation” invented by physicists T.A. Witten and L.M. Sander in 1981. “It’s essentially a random fractal generator,” says Lomas. “A simple physics environment for a digitally simulated growth process.”