Hey thanks for the feedback! I'm gonna try to answer you questions.
Sorry for the inconvenience. This is definitely something I'm gonna be working on for future versions of the addon, so stay tuned for that. As for the current solution, you could go directly into the addon's files. To do that, go under preferences > Add-ons > [search for procedural tiles] > [click in the file icon], this will open the file explorer in which you are gonna find a file called "icons", that could serve as "gallery" for the time being.
That's so cool! Of course you can use the addon this way. I think I know what is the problem.
You are likely trying this with a subdivision modifier and the displacement option from the material. This is not gonna work, cuz displacing the geometry from the material does not modify the actual geometry you can edit and deal with in conventional ways. Meaning that when you export this geometry, nothing is gonna be displaced at all.
Solutions:
The way I recommend you to do this is: bake a high resolution image of the height-map (black and white), and then use it in a displacement modifier after the subdivision modifier.
The unnecessarily harder way is: you could open up a node from the addon, strip all of its contents and rebuild it in a geometry node setup, from which you can do whatever you want, including displacing geometry of course.
Anyway. Share it with your friends if you liked it!
This is fantastic, thanks!
Two questions: 1.-Have you thought of providing a sort of gallery somewhere? The names are not clear and the icons are tiny. Since previewing requires adding new nodes rather than just going through a menu it would make it easier to get a feeling of what's going on.
2.-I am trying to use these tiles are displacement maps to add geometry for 3D Printing, but I can't seem to get it to work. Should it be possible at all? I may be missing something.