basically i think i do get it . .
the waco gives you a drawing surface. you plot vectors at time intervals or just triggered by movement. and have an algorithm to make the line narrower and the leaf size change successively. sounds true.
the generative tree is easier to understand. a bit like the dawkins bio morph, have you seen that, its spectacular how many variants he manages to come up with. kind of his e evolution model

. . . i was also wondering where you did the mapping/ did you map the building at all or just arrange the four projection surfaces to tile. i heard pd was not that great at projection mapping, v4 being far superior . . .

awesome stuff . . could you upload the patch? would love to see how that worked.