Install NVIDIA Broadcast and VTube Studio
Open NVIDIA Broadcast and enable the camera effect you want to use
Select your webcam or supported camera in NVIDIA Broadcast
Make sure the virtual camera output is active in NVIDIA Broadcast
Open VTube Studio
Go to the tracking or camera settings in VTube Studio
Select NVIDIA Broadcast Virtual Camera as the camera input
Allow camera permissions if prompted
Check that face tracking is working in VTube Studio
Adjust tracking sensitivity and smoothing if needed
Calibrate your model position if necessary
Keep NVIDIA Broadcast running while using VTube Studio
Test lighting and camera framing for better tracking
Close other apps that may use the camera if tracking fails
Update both apps if the virtual camera does not appear
Restart both apps if the connection stops working