Set up

You need OBS Studio 28 or newer, the Discord desktop app, and a webcam. Each player does this once.

1. Copy your link. Open the app, pick your game and screen, fill in your character, and press Copy share link. GMs pick the GM screen and press Copy GM screen link.
2. Load the script. Download vellum.lua. In OBS, open Tools → Scripts, press +, and pick it.
3. Set up. Paste your link into Your Vellum link, pick your webcam, and press Set up Vellum. Approve the system prompt if one appears.
4. Go on camera. In Discord, open Settings → Voice & Video → Camera and choose OBS Virtual Camera.

Next time, just open OBS and press Start Virtual Camera.

More: hotkeys · pick a frame · set up by hand · troubleshooting