Since I am a huge fan of Dark Souls and every other masterpiece From Software has released, That's why I decided to make a signature series of materials known from Dark Souls, or rather materials that have a strong recognition value to the franchise.
In the first run I tried the ashes, which can be found in every bonfire. Especially the third part of the series served as a model.
(I think there are bones in the actual bonfire, but I saved that for a different material) :D

100% created in Substance Designer
Rendered in Marmoset Toolbag
Post-process in Photoshop

Maps presentated with Markus' Pohl Texture Breakdown Tool:
https://www.artstation.com/xxmarkxx/store/JpGq/texture-breakdown-tool

(Btw the graph is a mess, so I am probably not going to share it)