getAppliedImpulse() always returning zero

[Yanush]

Hello,

I have another question, I want to be able to get the impulse of a collision, and there is a function that appears to be relevant, getAppliedImpulse(), but it always seems to return zero, I've tried calling it for the Raycastvehicle and on the manifold point in the ContactAddedCallback, i.e. cp.m_appliedImpulse, but again it is always zero for all points. Why is that? Or do you have to do something to activate it?

[Erwin Coumans]

Which version of Bullet are you using?

Note that the raycast doesn't produce regular contact points, only chassis collisions would result in proper contact points with an applied impulse.

Thanks,
Erwin

[Yanush]

I'm using version 2.69, and yes, in this case I'm only interested in the chasis collision, I know that the raycast wheels use different mechanism.

[Ondrej.Petrzilka]

I have the same problem