In my project, I use BABYLON.ActionManager.OnEveryFrameTrigger to handle some events related (among others) with physics. For example to apply an impulse somewhere, or to actuate a motor.
However it appears to me that a much better time to deal with the physics engine would be just before or just after a physics step. It would be more efficient and certainly more robust (I fear that my current implementation can skip or multiply impulses).
What about these 2 new scene triggers?