The CrazyBump normal maker talked about in the video is a US$99 retail app. There is a demo video on the site. It is impressive. The site is VERY small, almost nothing to read. If you an analytic personality, it isn’t enough.
However, CrazyBump has been around for a while. I first downloaded it in 2013, v12. It is now version 122.
LoD = Level of Detail. In 3D modeling LoD is a basic optimization technique used to increase performance. If you are making things, avatars, or clothes it is something to know about. Medhue explains what LoD is and shows how it affects your render and how to and how NOT to adjust for bad LoD design as a user.
This is a quick 5 minute tutorial by a kinda cute young man that is easy and to the point. He doesn’t cover all the details or provide all the possible adjustments but, he shows you how to get the job done.