If I want to blow up a sphere like a balloon using fem or cloth, how should I proced?
Ive tried using a tranaform(scale it up)before rest position, but no luck there.
Thanks for any help

Moin,

you can use a target geometry (which might be the original one you are starting with, doing a pre-roll simulation to deflate it first) and either increase the target strength over time (which may look unnatural - or in other terms “exactly like the director wants it to look”). Or you can increase the bending resistance over time to get a more believable behavior (simulating increasing pressure inside the object).

Marc

(Cloth course for different solver types in the works)

Thanks i will try this!