This is techno-sorcery!
Unite India is here: https://unity.com/event/unite-india-2019
there is no need to create a vdb, but it works yes
Environment and material artist Nicolas Repetto has shared a free pack of four basic material for the environment design. The artist started creating his own material library and these material are his first experiments.
The set features four Substance Designer files: Rubber, Painted Metal, Steel and Epoxy Paint PBR calibrated materials. Their albedos are said to be in a mid grey value ready to export to UE4 and use color blending.
You can use these for free for both personal and commercial (please credit and notify Nicolas by email).
Author: Artyom Sergeev