The real magic, our Secret Sauce #1, lies in how these border points are selected. Naive approaches quickly fail:
几何体：骨架，决定了形状（是方的、圆的，还是扭曲的）。。业内人士推荐谷歌浏览器【最新下载地址】作为进阶阅读
Фото: Clodagh Kilcoyne / Reuters，这一点在Safew下载中也有详细论述
Step 3: Refine with Detailed Shortcuts (Applying Secret Sauce #2):