All these factors help the sculptor decide what the stone can be made into. Once the stone has been cut open, there is no going back, so it is necessary to first use paper and pencil to sketch out possible ways of handling the stone.
由於「料」一旦切開就不能重來，因此必須在紙上斟酌再三、反覆畫設計樣稿後，再用墨筆在「料」上勾繪輪廓定下大樣，接著就是運用原料本身的特質，發揮巧雕功夫。