BoxShape Crashes in MultiThread mode

[sandeep_slash]

Hello,

I'm trying to make use of ThreadSupport in my application.... It is a simple object stack simulation.
It works fine with all objects except for BoxShape Objects. The application crashes in MultiThread mode, if I use BoxShape Objects. However if I disable MultiThread Support, it works fine.

My Callstack looks like this after the crash:

processCollisionTask()
handleCollisionPair()
ProcessConvexConcaveSpuCollision()
suWalkStaklessQuantizedTree()
spuNodeCallback::processNode()
ProcessConvexConcaveSpuCollision()
SpuGjkPairDetector::getClosestPoints()
SpuEpaPenetrationDepthSolver::calcPenDepth()
SpuGjkEpaSolver2::Penetration()
GJK::evaluate()
GJK::getsupport()
MinkowskiDiff::support()

Can someone help me please?

Thanks,
Sandeep.

[Erwin Coumans]

The btGjkEpa2 implementation was ported to SPU, but on other platforms there might be symbol clashes, so the wrong implementation is called.

We will look into fixing this.

Please try this workaround, disabling EPA using

Code: Select all

world->getDispatchInfo().m_useEpa = false;

Hope this helps,
Erwin

[sandeep_slash]

It works...

Thanks.

[John McCutchan]

Hey sandeep_slash,

We believe the bug you reported is fixed. Would you be able to try using the latest Bullet SVN release with EPA turned on?

Thanks,
John