Bullet HELP


#1

I’m attempting to create an explosion using bullet, in which the explosion starts at a point, and radiates outward.

Currently I have my rigid sets under one bullet solver, and I have a passive kinematic rigid body that hits the midpoint of my geometry. This causes the entire thing to simply explode outward, rather than from the point of contact.

I’m very new to dynamics and even more so to Bullet. If anyone has ANY information or could even point me in the right direction I’d be extremely grateful.


#2

Hi,

the simplest solution would be to bake the keys on all pieces and then offset keys in time by hand. If I remember correctly it only works if every piece is a rigid and not all of them combined to a rigid set.

http://www.pulldownit.com/productos.php?idcate=3

Pulldownit is worth a look. It has good controls over rigid sets and at which impact force they break apart, how much they cluster and more.

If there is a solution for your problem with the impact parts breaking first, I am interested too :wink:

Cheers


#3

Thank you so much for your advice! I tried Pulldownit and it seemed to give me the control I was looking for, but the demo limitations (and the full version’s price tag :surprised) made me unable to use it. :(( Definitely keeping it in mind for the future. I ended up working with what I had and playing around in post, but I’ll definitely give baking the keys a shot in another scene.