Using inflation pressure to deform another mesh

[SalvadorIII]

Hi all,

Is there a way to use the action of inflation to deform another mesh? Imagine two balls (A and B). A starts to inflate and eventually pushes and deforms B. Now, I want A to deform B as much as A is deformed by B. I’ve seen examples of A being deformed by B (think a ball in a rigid cage) but not the former. I’ve tried softbody colliders but it requires that both start inflating, which is not what I want.

I tried reversing the ball in a cage example like below (making the points mesh B and the solid mesh A - assuming now that the inflating mesh A does not deform but B does). but it ends up that nothing is colliding.

[DanielPiker]

Kangaroo balloon and voronoi frame

If you just want to make a smoothed version of the initial Voronoi cells, then you could skip the whole simulation part like this: [image] voronoi_cage.gh (10.7 KB) If you do want to simulate though, there is a new soft-body collision component in the latest R7 SRC that makes it a bit easier. This will give a more realistic squeezing together of the balloons. When you let them move around freely like this, the gaps between them no longer follow the original Voronoi division. [image] ballo…

[SalvadorIII]

Hi Daniel,

This does not seem to be what I’m looking for as I want the action of inflating to deform another mesh not that it is already inflated. Also, that the ball is a placeholder for any general mesh model. Essentially, what I want is to somehow get mesh A to start inflating and per inflation step, deform mesh B. Currently I can do something similar:

But I want one of them to not inflate. Is there a way to set goals (A inflate, B not inflate) on each separate mesh and then combine them for the soft body collider?

[SalvadorIII]

Never mind, I fixed it, looks a bit clunky but it works! Just needed to change unidirectional in SPC to False.