Look for the file named vray_mtllib_download.exe or mtllib.exe . Running the Download Command Open the as an Administrator.
Then, the dreaded red banner appeared across the top of the viewport:
You need an internet connection for this initial download.
Before diving into the download process, it’s crucial to understand what this library actually offers. The V-Ray Material Library is a comprehensive, high-quality collection of physically accurate materials designed specifically for Chaos Group's rendering engines. It includes a vast array of preset textures across dozens of categories such as metals, glass, wood, stone, fabric, plastic, leather, and liquids.
How to install the material library in offline mode? - Corona - Chaos
To help tailor this setup to your specific pipeline, please let me know: