Here is the newest free tutorial of this effect form CGjoy.
https://www.cgjoy.com/forum.php?mod=viewthread&tid=206218&extra=page%3D2
Download link：百度网盘 请输入提取码
Please click in the download link and enter the password
The password：p2c9
And maybe you should use the software name Baidu cloud network disk to download it.