Hi everyone!

I'm having difficulties figuring out how to setup an effect I'm trying to do..!

Basically, I'd like to have the pig head to close his mouth and then/while closing it, to crumble in pieces.
I follow a basic tutorial from toadstorm [www.toadstorm.com], and as you can see on the flipbook, I've managed to make the top parts pieces to follow the animation done in SOP before simulation.
But as soon as I try to add more constraints (the red bypassed nodes), houdini crashes. If I unbypass them, and bypass the animation nodes (the blue ones) it also works "fine" (but still far from my needs eheh).

As it can be seen in my hip file attached, I'm quite new to the whole rbd world, and I'm obviously making things in a bad way!

Could anyone help me with this, pointing me where I'm making mistake, what I didn't understood, or what the correct approach to this problem I should follow?

Also, I have a simple (I think!) question... When I use rbd configure, it converts everything into packed geo/fragments... Where is the correct place to use that? Should I put it at the beginning of my stream and then create all my constraints etc. Or should I put it right before the solver?

Thanks to everyone taking the time to read this, and a bigger one to whoever could help me even slightly!
Cheers,
François

flipbook:
https://www.dropbox.com/scl/fi/1r05b7lgc5s25716mesit/test_rbd_pig.mp4?rlkey=2ivlf121a5cej4gmyx0zk8txg&dl=0 [www.dropbox.com]

hip file:
https://www.dropbox.com/scl/fi/u8jk6d34hb4ppo2z9rgd4/test_rbd_pig.hiplc?rlkey=e4ylr58c2nzw207gtu0y70h5m&dl=0 [www.dropbox.com]