Infinite Touch uses Hololens' built-in Time-of-Flight (ToF) camera for sensing the environment and tracking user's fingers. At the moment, only Hololens devices running a recent OS version and having research mode enabled allow applications to use ToF camera. Therefore, the following steps must be taken before one can start application development using Infinite Touch Unity3D plugin:
1. Upgrade your Hololens device to Windows 10 April 2018 Update or later.
2. Enable Research mode.
3. Enable also Allow access to sensor streams.
4. Reboot the device. You can do it from Device Portal, under the Power menu at the top of the page.