Friends interested in using the V-Ray 5 Material Library in 3ds max + V-Ray rendering can use this collection. This set has a good variety of metals, and of course, it is more compatible with newer versions of the V-Ray plug-in, such as V-Ray 5, which we recommend you use.
If you want to change the direction of your materials, do this: Go to:
C: \ Program Files \ Chaos Group \ V-Ray \ 3ds Max 2017 \ bin
Then double-click on mtllib.exe to see the path to the directory. Enter the new location path and hold the extracted folder in the same location and click load. and over.
* Note: Considering that this library is designed for V-Ray 5, you should use at least 3ds max version 2018 and above.