How to properly delete a btCollisionWorld?

[tunnuz]

Hello, in my project I am creating a btCollisionWorld, and I sometimes need to delete it and substitute it with another one (e.g. when a scene changes) now, how to delete a btCollisionWorld properly when I don't need it anymore? I am currently initializing it with:

Code: Select all

// Initialize physical world
btCollisionConfiguration* mConfiguration = new btDefaultCollisionConfiguration();

physicalWorld = new btCollisionWorld(
	new btCollisionDispatcher(mConfiguration), 
	new btDbvtBroadphase(), 
	mConfiguration
); 
	
	physicalWorld->setForceUpdateAllAabbs(true);

But somehow the code for deletion doesn't free all the space (about 3MB for an empty btCollisionWorld from my tests) that is allocated at creation. The code I am using to delete it is the following:

Code: Select all

// Delete all objects from physicalWorld
std::vector<btCollisionObject*>::iterator coIt;

for (coIt= collisionObjects.begin(); coIt != collisionObjects.end(); ++coIt) {
	physicalWorld->removeCollisionObject(coIt);
}
	
delete physicalWorld;

What am I doing wrong? Moreover, in between creation and deletion I also add btCollisionObjects whose shape is a triangle mesh shape o a GImpact mesh shape, do I have to manually delete the shape for each object or this is handled automatically? And what about meshes, I have to delete them by hand?

Thank you
Tunnuz

[tunnuz]

Dumb me. I assumed that Bullet would take care of the deletion of the btCollisionDispatcher, btCollisionConfiguration and btDbvtBroadphase. Now I delete them manually and the leak is vanished.