topic Bullet question in Maya Dynamics Forum

Bullet question

mgr0704 — Fri, 03 Mar 2023 20:12:42 GMT

Trying to learn Bullet from online tutorials, and I can't seem to find the answer I am looking for. When you set up a simulation using cubes, everything works as you would expect. Hit play and the blocks fall with gravity as expected, but if you take a cube and shatter it with the Shatter Effect Option then make them an active rigid body in bullet, instead of just falling with gravity, they explode apart. I am trying to see if I can use Bullet to make the side of a building collapse downward as if shaken by an earthquake. Any idea of how to make these individual shattered pieces behave this way? Thanks.

Re: Bullet question

Kahylan — Fri, 17 Mar 2023 12:16:57 GMT

Hi!

Sounds like your object is colliding with itself. Which is most likely an inexact collision shape type or a too big collison shape margin. Here is a tutorial that explains it pretty good:

https://www.youtube.com/watch?v=ewB8xuP4efI

I hope it helps!

Re: Bullet question

mgr0704 — Sat, 18 Mar 2023 18:53:53 GMT

Hi, yes that works, but shattering walls into glass-like shard pieces is not very realistic. So Bullet dynamics will not work if the wall is shattered using edge jagginess?