Ghost and ContactPoint

[noon]

Hello,

I'm using Ghosts as described in the wiki : http://bulletphysics.org/mediawiki-1.5. ... hostObject
I also initialize the world with this :

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m_Broadphase->getOverlappingPairCache()->setInternalGhostPairCallback(new btGhostPairCallback());

I get the right results when calling this :

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btBroadphasePairArray& pairArray = ghostObject->getOverlappingPairCache()->getOverlappingPairArray();

But I don't get any contact points because collisionPair->m_algorithm is NULL :

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 if (collisionPair->m_algorithm)
            collisionPair->m_algorithm->getAllContactManifolds(manifoldArray);

Any idea ?

Thanks

[Kanttori]

Hi!

Maybe you're using concave trimeshes? In that case I think you need to use GIMPACT (MovingConcaveDemo) or replace your shape with a convex one like one of the primitives or a convex hull.