Hi,

I'm trying to achieve a particular effect which I though would be relatively simple (see attached image.)

I have a shot I'm working on where I have a mechanical heart and I want a bullet to go straight through it without losing impact, shattering the heart as it goes.

I have pre-fractured the heart geometry with voronoi and used glue to anchor it in place. I then did a simple RBD sim as you normally would when fracturing objects.

However, when I used a sphere as a placeholder bullet with initial velocity, it just bounces off the heart. Even when I increase the mass of the ‘bullet’ it still bounces off.

My question is, how would you approach this? I'm completely lost.

Cheers!

If the bullet is supposed to go straight through there's no need to simulate it on its own - just animate it and make it a collider.