Bark (and the solid parts of cacti, succulents, bamboo and lily pads): vertex colours from the generator, furrows
from seamless cylindrical noise with bump, optional dark birch marks, per-instance colour variation and wind sway.
Weather: wet bark darkens and shines, snow settles on top, burn chars it black along the furrows first, damage
breaks off side branches.
Bark (and the solid parts of cacti, succulents, bamboo and lily pads): vertex colours from the generator, furrows from seamless cylindrical noise with bump, optional dark birch marks, per-instance colour variation and wind sway. Weather: wet bark darkens and shines, snow settles on top, burn chars it black along the furrows first, damage breaks off side branches.