Using Bullet In a Continuous World

[michaely]

Hi, I'm a newbie to Bullet.
I want to use Bullet in my game project for collision detection which has a infinit continuous world.
My question is how to setup parameters about min and max AABB, when I initialize "bt32BitAxisSweep3".
The document said "Don't set aabb too larger, it will cause poor performance".
Please Help me.Thanks.

[Erwin Coumans]

btAxisSweep3 and bt32BitAxisSweep3 should use compact world bounds, don't pass infinite.

You can use the btMultiSapBroadphase, and add a grid of multiple broadphases, each of finite size,

or even better wait a few weeks for Bullet 2.69 and start using the btDbvtBroadphase instead.

Hope this helps,
Erwin