Very nice. In the 1990s, when I was doing Softimage physics plug-ins, I met the guy who did the first good water surface shader. The first application was Waterworld, which was such an awful movie the reputation rubbed off on his plug-in. Then he sold some to Titanic, and the business improved.

(Add-ons for Softimage were a crappy business. "400 people chasing $4M in revenue", one Softimage rep told me.)