some question about cloth collision

[sssa2000]

i want to set the cloth is not influenced by other colliding rigid bodies.
in physx, i can set the cloth's flag,

in bullet,how to do it?
if anyone can help me i will appreciate it

[Erwin Coumans]

You need to use latest Bullet 2.75 Physics SDK RC6, and then you can specify collision group/mask as optional 2nd/3rd argument to btSoftRigidDynamicsWorld::addSoftBody.

Hope this helps,
Erwin