添加修饰符来编辑网栈，顶点点击子对象，使用软选择。
Add a Edit Mesh modifier to the stack, click on vertices subobject, enable Use Soft Selection.
选择全部方块，然后使用不透明度20%的软画笔在上面涂抹一些高光。
Select all of them, then with a 20% Opacity, soft brush, paint some highlights on them.
如果需要缓存不止一个对象，您可以使用一个Map，但是可以选择如何使用软引用。
If you need to cache more than a single object, you might use a Map, but you have a choice as to how to employ soft references.
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