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Version: Current (v5.0)

Project Babble - HP Reverb G2 Omnicept Setup Guide

Summary

The HP Reverb G2 Omnicept Edition is a VR headset with eye tracking and a lower face camera. While there is a module that allows you to use the headset's eye tracking with VRCFaceTracking, the face camera by itself does not do anything.

HP Reverb G2 Omnicept eye and face cameras, circled in red

But! With Project Babble this camera can be used to track your facial expressions! This guide will show you how to use the lower face camera with VRCFaceTracking.

Setup

You will need the following software installed to use the lower face camera with VRCFaceTracking:

caution

Make sure you use the exact version of OBS and the plugin listed!

Installation

Step 1: Glia Lip Viewer Setup

Firstly, extract the contents of the GliaLipViewer.zip file to a folder of your choice. You can delete the zip file after this is done.

The Glia Lip Viewer, extracted to a folder

Next, run Glia.exe inside of this new folder. If your HP Reverb G2 Omnicept Edition is plugged in, you should see a small window with a live feed from the lower face camera, tinted red. Otherwise, you'll see a solid red box. If this is the case make sure your headset is plugged in and that you have the Glia Runtime installed.

note

You may get a warning from the Glia Runtime about an application requesting access to the lower face camera. If you do, make sure to click "Allow".

Step 2: OBS Setup

Install OBS v27.2.4 as well as the OBS Virtual Camera Plugin. If you have a newer version, you should not have to uninstall it. Open OBS and add a new "Window Capture".

Creating the OBS Window Capture

Select the Glia window from the list of windows...

Selecting the GliaLipViewer window

Disable cursor capture. Now resize OBS to fit the size of the window. This can be done by right clicking on the "Window Capture" source and selecting ""Resize output (source size)".

Resizing the OBS Window
note

You may need to change the capture method from "Default" to "Windows XXXX".

Finally, under OBS's Tools in the top menu bar select the VirtualCam option and click start. Project Babble should detect this as an input device if 1 is entered as input to it!

caution

In its present state, you will need to launch the GliaLipViewer and OBS's virtual camera every time you want to use this with Project Babble/VRCFaceTracking.

(Optional) Step 3: Fine tuning

note

This section is intended to fine tune and calibrate project babble, but isn't a necessary step to get it to function

Open the filters tab for the window capture you created...

OBS Window Capture filter

Add a "Color Correction" filter.

OBS Window Color Correction

Increase the brightness of the video by adjusting "Gamma", you want to make this about ~3 times as bright as it is by default. You can also adjust the contrast and saturation to your liking.

OBS Window Color Correction Gamma

You should now be able to see your lower facial expressions reflected in VRCFaceTracking! Have fun!

HP Reverb G2 Omnicept Face Camera pictures from Road to VR, by Aggiornamenti Lumia