https://images.plurk.com/5mpEtaz3OqhU6gHzOuaQbC.png
不知為何是趴著吃冰的構圖被挑到(rofl)
細化的時候覺得邏輯怪怪的(?
簡單地拆一下圖層

https://images.plurk.com/2nWhoyDEvkq9UnIkL462G5.png