hi @o.s,
this is the simplest way i can think of to achieve rotation around the center axis for each individual mesh, but there is nothing in your script for population of the site, how are you planning on doing that?
Also is it crucial that every tree has the foliage rotated slightly different or would it be sufficient to have the trees distributed on the site and rotatated differently as a whole?
RANDOM ROTATION.gh (10.4 KB)