Scale from 0 to 1 (Object Pooling) in UE4
Scaling objects down to zero is a common industry technique for "spawning" or "despawning" objects without actually having to instantiate or destroy them. Rather, they simply stay where they are, hidden from view and disabled from physics or collision, until you need them again. You can use these to switch from controlling the main player character to controlling a vehicle (or a morph ball), creating destructible blocks in your level, and switching weapons. We use Unreal Engine 4 for the examples shown.
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00:00 Morph Ball
02:09 Destructible Blocks
02:44 Weapon Switching/Pickups
03:48 Industry Example (Yooka-Laylee)
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