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How do I use VTube Studio with Gamecaster?

You've seen them across YouTube and streams: colorful and animated avatars that take the place of your camera and offer an extra level of personalization, creativity, and privacy. And while it looks intimidating to get started to use one for your content, Gamecaster can make it easy thanks to our friends over at VTube Studio. So read on below for a quick guide on getting your own avatar set up in your streams and videos.

There are a few things you need to get started:

Download and install VTube Studio from Steam at this link.
Make sure you already have Gamecaster installed.
Prepare the camera you will be using with both programs, and double-check to see that it's getting detected in Windows and in Gamecaster.

Once everything is in place, go ahead and launch VTube Studio. You'll be greeted by a number of prompts with various warnings and messages, but you can just click OK on all of them. Eventually you'll end up on the VTube main screen. If you don't see anything on the left side, double-click to bring up the main menu.

As a quick reference, in order, the main icons on the left side are for avatar import, background, locking all elements in the scene, options, action log, and close menu.

The program can get pretty advanced, but to quickly get started, we'll be focusing mainly on setting up one of the default avatars, a background that Gamecaster can use, and locking everything in place so that you don't accidentally move your avatar.

Click on the first icon to open up the avatar import menu. Advanced users will see an option to import their own model, but to start, let's use Akari as our avatar. Click on her icon and she'll be loaded into the scene.

Instructions will show you how to place her in your scene, including left-clicking and holding to move her, scrolling to zoom in or out on her, and holding Ctrl and scrolling to rotate her. For this example we want Akari to act as if she was front and center in a webcam, so we have her placed as follows:

Go ahead and click on the third yellow icon to lock Akari in position.

The next step is to have Akari start tracking your facial movements by connecting her with your camera. Click on the fourth pink icon to open up the options. On the upper left, you can to click on the 📷 icon to bring up the options for yours.

On the right side you will see more options, and you want to click on the Choose Camera button then select the camera you will use to pair with Akari.

For best results, select the highest options for resolution, FPS, and quality (for ours it's 1280x720 @30FPS and MJPEG)

Almost there! You can choose to start the camera when you launch VTube Studio in the future by toggling the Autostart cam with VTS option, and the next step is to just click on Camera On.

This opens up a new menu that shows how the software is tracking your face and your expressions. You'll be presented with how best to calibrate the camera to track your facial movements, so play around with the settings and click on Calibrate to ensure your face is being tracked relatively accurately.

Note: Once you enable the camera you will see an avatar floating around on the lower portion of the screen—this is VTube Studio's watermark which you can remove by purchasing the DLC from Steam.

Now that you have an avatar loaded and your face is being tracked correctly, it's time to import her into Gamecaster.

In the 📷 options where you set up your camera, scroll down to the very bottom until you get to Virtual Webcam Config, then enable the Activate virtual webcam option.

Next, we need to change the background into something Gamecaster can use as a transparency. To do this, click on the ❌ on the top right of this menu to go back to the main screen. If the options aren't there on the left side, double-click. Click on the second green icon to open up the background options, then scroll down to the bottom and select ColorPicker.

For best results, we'll use a green background for this option. Either enter in #00FF00 in the upper right box, or move the green slider on the bottom all the way to the right. Also make sure the Transparent in capture option is also enabled.

Now it's time to bring her into Gamecaster. Since we enabled the Activate virtual webcam option in step 1, VTubeStudioCam will now show up as a webcam option inside of Gamecaster which you can select under Settings > Devices > Camera Source or by clicking on the Camera Source button on the lower left of the main interface.

To make use of the green transparency we selected, it's time to go into Scene Editor for the scene where you want to use Akari.

The three things to make note of here:
Make sure that VTubeStudioCam is the option on the left side (which will be automatic since we selected it in step 4).
Position Akari's frame on your scene.
On the options on the right side, make sure to Enable the chroma key option, and select Green as the color to match what we did in step 3.

Click on Save, and if everything was done correctly, you're now all set to use your virtual avatar in your streams and recordings!

VTube Studio is a very powerful program and this guide only scratches the surface of what you can do with the tool. To get into the depths of the program and start exploring its advanced features, be sure to check DenchiSoft's full documentation on the VTube Studio wiki at this link.

Updated on: 04/04/2022

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