void VisualDebugger::releasePvdInstance(physx::debugger::comm::PvdDataStream& pvdConnection, const PxConstraint& c, const PxJoint& joint)
	{
		if(!pvdConnection.isConnected())
			return;
		//remove from scene and from any attached actors.
		PxRigidActor* actor0, *actor1;
		c.getActors( actor0, actor1 );
		pvdConnection.removeObjectRef( c.getScene(), "Joints", &joint );
		if ( actor0 ) pvdConnection.removeObjectRef( actor0, "Joints", &joint );
		if ( actor1 ) pvdConnection.removeObjectRef( actor1, "Joints", &joint );
		pvdConnection.destroyInstance(&joint);
	}
	void VisualDebugger::setActors( physx::debugger::comm::PvdDataStream& inStream, const PxJoint& inJoint, const PxConstraint& c, const PxActor* newActor0, const PxActor* newActor1 )
	{
		PxRigidActor* actor0, *actor1;
		c.getActors( actor0, actor1 );
		if ( actor0 )
			inStream.removeObjectRef( (PxActor*)actor0, "Joints", &inJoint );
		if ( actor1 )
			inStream.removeObjectRef( (PxActor*)actor1, "Joints", &inJoint );

		if ( newActor0 )
			inStream.pushBackObjectRef( newActor0, "Joints", &inJoint );
		if ( newActor1 )
			inStream.pushBackObjectRef( newActor1, "Joints", &inJoint );
		inStream.setPropertyValue( &inJoint, "Actors.actor0", (const void*)newActor0 );
		inStream.setPropertyValue( &inJoint, "Actors.actor1", (const void*)newActor1 );
		const void* parent = newActor0 ? (const void*)newActor0 : (const void*) newActor1;
		inStream.setPropertyValue( &inJoint, "Parent", parent );
	}