I used that for thiseatyourguitar wrote: to prove it works lets fade a sine to saw to square.
sin((x+1)*pi)*(-y*(y<0))+(-x)*(-abs(y)+1)+x/-abs(x)*(y*(y>=0))
https://soundcloud.com/matthijsbos/soun ... ple-trance
and made a short track example (yeah it's trance, deal with it KVR!)
https://soundcloud.com/matthijsbos/trac ... ple-trance
Here is the patch if anybody wants to play with it --> http://s000.tinyupload.com/index.php?fi ... 6854115276