Vive Face Tracker Developer User Guide
- June 6, 2024
- Vive
Table of Contents
Vive Face Tracker Developer User Guide
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Developers can develop applications for the Face Tracker (also known as Lip Tracker) and the Eye Tracker using the same SDK.
Download the SDK and Runtime (SRanipal) https://hub.vive.com/download
The SDK folder structure shows 3 supported APIs, Native C, Unity and UE4:
SDK Folder Structure
SRanipal_SDK_Guide.pdf 01_C
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Document\Document_C.lnk (C API reference)
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SRanipal
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SRanipal_Sample
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SRanipal_Sample.sln
02_Unity -
Document
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Geting Started with SRanipal in Unity.pdf
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Document_Unity.lnk (SRanipal API reference)
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Vive-SRanipal-Unity-Plugin.unitypackage · Geting Started with SRanipal in Unity.pdf
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Document_Unity.lnk (SRanipal API reference)
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Vive-SRanipal-Unity-Plugin.unitypackage
03_Unreal -
Document
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Getting Started with SRanipal in Unreal.pdf
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Document_Unreal.lnk (SRanipal Unreal API reference)
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Vive-SRanipal-Unreal-Plugin.zip
Install and run the SRanipal Runtime:
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Launch SR_Runtime until the status icon appears in the notification tray:

The status icon reflects the status of your tracking devices:
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Start SteamVR (if not running already)
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Put on your HMD.
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Done. You are ready to develop face-aware applications.
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If you want to quit the runtime, right-click on the status icon and click Quit to stop SR_Runtime.
Developing with the Unity Plugin
- Open unity and create a new 3D project.
- Select Asset > Import Package > Custom Package.
- Select the Vive-SRanipal-Unity-Plugin.unitypackage
- In the Importing Package dialog, ensure that all package options are selected and click on Import.
- Accept any API upgrades if prompted.
Opening a sample scene
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In the Unity Project window, find the scene file Sample.unity in Asset > ViveSR > Scenes

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Click Play.
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For details about this sample, please refer to
$(SRANIPAL)2_UnityPluginGetting Started with SRanipal in Unity.docx -
For details about this API, please refer to $(SRANIPAL)2_UnityDocument_Unity.lnk
Developer Forum: https://forum.vive.com/forum/78-vive-eye-tracking-sdk/
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