HTC VIVE Tracker 3.0 Developer Manuallines page 41

Developer Guidelines
VIVE Tracker (3.0)
V1.0
HTC Corporation
12/16/2020
Import the VIVE Input Utility plugin into your project. If you do not have the plugin, download it
from the Unity Asset Store. The VIVE Input Utility (VIU) plugin is a cross-platform VR toolkit
with additional support for the VIVE Trackers.
Step 1: Add "ViveCameraRig" or "ViveRig" to scene Hierarchy to add support for controllers
and trackers in Unity.
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HTC Confidential and Proprietary