javascript - I would like to know how to implement the automatic rotation and folding part of this web page.

Question

1. The website address is this: http://baozhuang.yundayang.co...

2. Do I need to use plug-ins for the folding part?
3. What are the key points if you write it yourself?

Answer 1

This website uses three.js

Answer 2

You need to learn webGL