Installing the V-Ray 6 Material Library for offline use is a common necessity for workstations without consistent internet access or for IT managers deploying the software across multiple machines. Starting with V-Ray 6, Chaos moved the preset library into the Chaos Cosmos Browser . However, the traditional library assets can still be downloaded once and then installed manually on offline computers. Prerequisites for Offline Installation

: Launch mtllib.exe with administrator privileges.

: Have the V-Ray 6 installer (.exe for Windows) ready on your target machine. Step 1: Download the Material Library Assets

: By default, it downloads to \Documents\V-Ray Material Library\ . You can change this using a command prompt if needed: mtllib.exe -targetDir="C:\YourPath" .

Once you have the files on your portable drive, move to the offline workstation.

: You need approximately 8.5 GB of free disk space for the full library.