It is called Materialize. It is, as stated in the title, a free Texture Generating Tool.

It is standalone and currently for Windows users only. Mac and Linux are out of luck at this time. It looks like it's for props but I'm betting some of the pros can use this for figures as well. Here are the links. Mods feel free to move this where you wish. I'm just following Earl's propensity for sharing useful links and Apps with the community. The first two links tells you all about it and the third link is the download page itself.

https://www.gamefromscratch.com/post/2018/10/16/Materialize-Free-Texture-Map-Generation-Tool-Released.aspx

https://www.youtube.com/watch?v=vtnJToPxBNo

http://www.boundingboxsoftware.com/materialize/getkey.php

It's also available for Unity and the Unreal engine.