On a master machine, follow Method 1. Step 2: Locate the local library folder. The default paths are:
Whether you are deploying this for a or across a network render farm . V-Ray Material Library - V-Ray for SketchUp - Chaos Docs
Under , specify a local folder (e.g., D:\ChaosCosmosLocal\ ). Click Set . 2. Download Assets via the Cosmos Browser
Once the download finishes, you must point V-Ray to your new offline folder. Open your 3D software (e.g., 3ds Max). Open the or Chaos Cosmos Browser . Click on the Settings icon (gear symbol). Find the Asset Download Path field. vray 6 material library download offline
Use a shared network drive (e.g., Z:\CosmosLibrary ) as the working directory for all workstations and render nodes. Ensure UNC paths are enabled. Cosmos Browser Fails to Open Offline
Historically, V-Ray automatically prompted an 8.5 GB library download upon its first launch. However, in , Chaos shifted its preset system to the cloud-based Chaos Cosmos Browser . While this keeps your hard drive clear, it can severely handicap studios operating on air-gapped computers, strict corporate firewalls, or laptops working remotely without internet access.
(Note: Change "3ds Max 2024" to match your specific host application and version). Step 2: Execute the Offline Download Command On a master machine, follow Method 1
There are several compelling reasons to set up an offline V-Ray material library:
: In the Cosmos Browser, you can add your own custom file system locations. For instance, in V-Ray Asset Editor, look for a folder icon that says "Adds a new file system location," which allows you to integrate your custom material libraries seamlessly alongside the default ones.
If Windows cannot find mtllib.exe , search your primary drive for the file. Chaos sometimes moves the utility into the Chaos Cosmos installation directory under C:\Program Files\Common Files\ChaosGroup . To help troubleshoot further, let me know: V-Ray Material Library - V-Ray for SketchUp -
After transferring the files, you need to point V-Ray to the new local path.
Copy your completed offline library directory onto a backup thumb drive or cold storage server. If an offline workstation needs a reformat, you can quickly copy the files locally without burning download limits or production time.
If you need to change this path (for instance, if you want to store the 8.5 GB library on a secondary SSD), you can run the tool via the Windows Command Prompt ( cmd ) using the following destination flag:
The most straightforward method uses Chaos's official downloader tool. Here's how to set it up:
, the standard "Offline" material library has been largely replaced by the Chaos Cosmos Browser, a cloud-based service. However, you can still download assets for offline use or manually install the legacy library if you have restricted internet access.