This feature is called Virtual Camera. Essentially, OBS simulates a webcam and tricks your computer into thinking it is an external video source. Let's set up OBS to take advantage of this feature.

As well as recording your screen, you can record your webcam feed and other video sources too. OBS Studio is a comprehensive and free capture tool for Windows and macOS. Screenshot: Gizmodo ...

Back in the Sources tab in OBS, click on the plus icon and choose ‘Video capture device,’ not ‘Capture card device.’ Once you select it, a screen will appear.

How to set up your first Open Broadcaster Software 'scene' with a webcam's video feed.

When adding a Vidoe Capture Device on OBS Studio, their camera or webcam won’t show up or doesn’t work properly. This prevents users from recording a video using the camera.