all these years i glossed over the Insert formula on the menu, don't have the faintest idea how to write a write a formula.

what really hoping for is something like a volumetric shader, something inside clouds besides just picking a color. something like generate random lightning bolt shapes with volumetric clouds.

something to do some fx inside a carrara render

thanks.

There is a great Carrara formula feature resource. It is in French but a math formula is universal, supposedly. Everyone communicates in math in scifi movies. If you use the menus you will be able to find uses and examples of formula objects and formula shaders http://gianp.free.fr/carrara/indexcarrara.html

thanks. some pretty shapes.