You can download the patch here.
Easiest way to use it yourself is to install pd-extended and add rjlib.
Today I decided to play around with Andy Farnell’s rain on a window work. It is one of the better ones I have found so far in his book “Designing Sound”. I tried to see if could make the scene a bit bigger by adding some elemetns. then i started to just jam a bit randomly with the parameters. See what kind of juice was to be found. Good fun tweak session and got some interesting ideas from it. Worth a revisit some day.