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fix crash in btInternalEdgeUtility when a mesh is not the expected type

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(don't wrap a mesh in a btCompoundShape if you want to use the edge utility)
This commit is contained in:
Erwin Coumans
2018-08-31 09:25:49 -07:00
parent f10068b7c9
commit f1cb4fe29c
1 changed files with 14 additions and 5 deletions
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19
src/BulletCollision/CollisionDispatch/btInternalEdgeUtility.cpp
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@@ -455,11 +455,20 @@ void btAdjustInternalEdgeContacts(btManifoldPoint& cp, const btCollisionObjectWr
btBvhTriangleMeshShape* trimesh = 0;
if( colObj0Wrap->getCollisionObject()->getCollisionShape()->getShapeType() == SCALED_TRIANGLE_MESH_SHAPE_PROXYTYPE )
trimesh = ((btScaledBvhTriangleMeshShape*)colObj0Wrap->getCollisionObject()->getCollisionShape())->getChildShape();
else
trimesh = (btBvhTriangleMeshShape*)colObj0Wrap->getCollisionObject()->getCollisionShape();
btTriangleInfoMap* triangleInfoMapPtr = (btTriangleInfoMap*) trimesh->getTriangleInfoMap();
{
trimesh = ((btScaledBvhTriangleMeshShape*)colObj0Wrap->getCollisionObject()->getCollisionShape())->getChildShape();
}
else
{
if (colObj0Wrap->getCollisionObject()->getCollisionShape()->getShapeType()==_TRIANGLE_MESH_SHAPE_PROXYTYPE)
{
trimesh = (btBvhTriangleMeshShape*)colObj0Wrap->getCollisionObject()->getCollisionShape();
}
}
if (trimesh==0)
return;
btTriangleInfoMap* triangleInfoMapPtr = (btTriangleInfoMap*) trimesh->getTriangleInfoMap();
if (!triangleInfoMapPtr)
return;