What are the main techniques used for shattering geometry like walls or ceilings in Unity?
Can you pre-record a simulation of a wall shattering inside Unity?
Or do you bake a fancy simulation in Max/Maya and export your animation?
You could just add rigidbodies and detach shattered pieces of a ceiling from a gameobject with a trigger. Or use particles.
If you need it to smash into procedually generated bits, here’s a maths paper on it!