How to apply collision physics without destruction? The sphere rolls down a plane though I it falls through the tunnel. How can I apply Chris' answer without applying the modifiers?
Tried[0] as well


[0] Passive rigid body physics not working with screw modifier
As well as defining the Shape of the collision you can also define the 'source' :

Selecting 'Final' uses the state of the mesh after all modifiers have been applied - without having to actually apply them.