I have a construction of stacked bricks (a wall). So every brick is a rigid body. When the bricks are aligned it seems like PhysX can't put them into sleep. So I have a big performance degradation, should I place a number of these walls. But everything works fine when the wall is a little bit "damaged", so the bricks aren't aligned.
When I manually call Sleep on each brick at the start - everything seems to work fine. But when I call AddExplosionForce, the unaffected bricks are still awaken and can't get to sleep no more.
So is this a feature, or am I doing something wrong? A good explanation would be appreciated.