How to Set Up the Virtual Webcam in VTube Studio

The short answer

VTube Studio can send your animated avatar to other apps as if it were a normal webcam. You turn this on in VTube Studio's settings, in the virtual webcam section. Then, in the app that should show your avatar (a video call, chat or streaming app), choose the VTube Studio camera instead of your real webcam. Two conditions change this answer. First, if your version or operating system doesn't offer the virtual webcam option, route the avatar through OBS Studio and use its virtual camera instead. Second, if you want graphic overlays on top of the avatar, combine them in OBS and use the OBS virtual camera.

Platform note: the exact menu labels and which systems support the built-in virtual webcam can differ between VTube Studio versions. No version-specific documentation was provided for this guide, so check the settings screen in your installed version and the developer's current documentation if a label doesn't match.

Two cameras are involved

Much of the confusion comes from mixing up two separate video paths:

• Tracking input: your physical webcam, or a phone running a tracking app, watches your face. VTube Studio uses that feed to move the avatar. Other apps don't see this feed.
• Virtual webcam output: VTube Studio renders the avatar and presents it to the system as a camera device. This is the camera you select in Zoom, Discord, a browser or another app.

Microphone audio is separate from both. The virtual webcam carries video only. Your voice still comes from the microphone you select in the call or streaming app. VTube Studio can also listen to a microphone to drive mouth movement. That is a different setting, and it doesn't send audio to other apps.

Basic setup steps

• 1. Open VTube Studio, load your model and confirm face tracking works with your physical webcam or phone.
• 2. Open VTube Studio's settings and find the virtual webcam section.
• 3. Start the virtual webcam. If VTube Studio prompts you to install a camera component, approve it.
• 4. Fully close the app where you want the avatar to appear, then reopen it. Many apps only check for camera devices when they start.
• 5. In that app's video settings, choose the VTube Studio camera, not your physical webcam.
• 6. In the same app, choose your real microphone for audio.

If the avatar doesn't appear: order of checks

Work through these in order. Each step depends on the one before it.

• 1. Is the avatar moving inside VTube Studio? If not, the problem is the tracking input, not the virtual webcam. Fix tracking first.
• 2. Is the virtual webcam actually running? Check that the option is switched on in VTube Studio's settings and that VTube Studio is still open. The virtual camera produces no picture when the program is closed.
• 3. Is the device detected? If the VTube Studio camera is missing from the other app's camera list, restart that app. If it's still missing, the virtual camera component may not be installed. Repeat the setup step in VTube Studio.
• 4. Is access permitted? Detection and permission are separate. On Windows, the camera privacy settings must allow desktop apps to use the camera. In a browser, the website also needs camera permission, granted through the browser's site settings. On macOS, the app needs camera access in the system privacy settings.
• 5. Is it the selected input? An app can detect the VTube Studio camera and still use your physical webcam by default. Pick the VTube Studio camera explicitly.
• 6. Is the physical webcam being taken by another app? Some systems let only one app use a physical camera at a time. If a call app grabs your real webcam, VTube Studio may lose its tracking feed. Set every other app to the VTube Studio camera.

Backgrounds and transparency

Video call apps generally receive a flat picture with no transparent areas. Anything behind the avatar shows up as a solid background. In VTube Studio, choose a background color or image that suits the call. A green or other solid color only works if you plan to key it out later in a tool like OBS.

Many apps also mirror your own preview, so text or asymmetric details may look reversed to you. Other people usually see the unmirrored picture. Check the app's mirroring option before changing anything in VTube Studio.

Adding graphic overlays

VTube Studio's own virtual webcam outputs the avatar scene. To add other graphics, such as name banners, frames or alerts, build the layout in OBS Studio instead:

• 1. Bring the avatar into OBS. Use a capture source for the VTube Studio window, or a texture-sharing source if your setup supports it, which can keep transparency.
• 2. Add your overlay images and text as additional sources above or below the avatar.
• 3. Start OBS's virtual camera.
• 4. In the call app, select the OBS virtual camera rather than the VTube Studio camera.

Use one virtual camera path at a time: either VTube Studio's virtual webcam directly or the OBS virtual camera. Running both and selecting the wrong one is a common reason the overlays seem to be missing.

What this guide can't confirm

No specific version numbers, supported-system lists, performance figures or resolution limits were available for this guide. If your problem depends on one of these, check the current VTube Studio documentation or release notes for your version and operating system. Examples include whether macOS supports the built-in virtual webcam, or what output resolution is available.