Bart/bullet3
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Avoid crash in btCompoundCompoundCollisionAlgorithm if there is no tree for one of the btCompoundShapes

Browse Source 
Update the revision, to avoid clearing the child cache each frame
This commit is contained in:
erwin.coumans@gmail.com
2013-11-17 20:35:35 +00:00
parent 886650a038
commit 9aad92315b
4 changed files with 16 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/BulletCollision/CollisionDispatch/btCompoundCompoundCollisionAlgorithm.cpp
View File

@@ -27,10 +27,8 @@ subject to the following restrictions:
btShapePairCallback gCompoundCompoundChildShapePairCallback = 0;
btCompoundCompoundCollisionAlgorithm::btCompoundCompoundCollisionAlgorithm( const btCollisionAlgorithmConstructionInfo& ci,const btCollisionObjectWrapper* body0Wrap,const btCollisionObjectWrapper* body1Wrap,bool isSwapped)
:btActivatingCollisionAlgorithm(ci,body0Wrap,body1Wrap),
m_sharedManifold(ci.m_manifold)
:btCompoundCollisionAlgorithm(ci,body0Wrap,body1Wrap,isSwapped)
{
m_ownsManifold = false;
void* ptr = btAlignedAlloc(sizeof(btHashedSimplePairCache),16);
m_childCollisionAlgorithmCache= new(ptr) btHashedSimplePairCache();
@@ -292,12 +290,21 @@ void btCompoundCompoundCollisionAlgorithm::processCollision (const btCollisionOb
const btCompoundShape* compoundShape0 = static_cast<const btCompoundShape*>(col0ObjWrap->getCollisionShape());
const btCompoundShape* compoundShape1 = static_cast<const btCompoundShape*>(col1ObjWrap->getCollisionShape());
const btDbvt* tree0 = compoundShape0->getDynamicAabbTree();
const btDbvt* tree1 = compoundShape1->getDynamicAabbTree();
if (!tree0 || !tree1)
{
return btCompoundCollisionAlgorithm::processCollision(body0Wrap,body1Wrap,dispatchInfo,resultOut);
}
///btCompoundShape might have changed:
////make sure the internal child collision algorithm caches are still valid
if ((compoundShape0->getUpdateRevision() != m_compoundShapeRevision0) || (compoundShape1->getUpdateRevision() != m_compoundShapeRevision1))
{
///clear all
removeChildAlgorithms();
m_compoundShapeRevision0 = compoundShape0->getUpdateRevision();
m_compoundShapeRevision1 = compoundShape1->getUpdateRevision();
}
@@ -329,8 +336,7 @@ void btCompoundCompoundCollisionAlgorithm::processCollision (const btCollisionOb
}
const btDbvt* tree0 = compoundShape0->getDynamicAabbTree();
const btDbvt* tree1 = compoundShape1->getDynamicAabbTree();
btCompoundCompoundLeafCallback callback(col0ObjWrap,col1ObjWrap,this->m_dispatcher,dispatchInfo,resultOut,this->m_childCollisionAlgorithmCache,m_sharedManifold);