Tobii TGI Input System Adapter

Bridges Tobii Game Integration (TGI) tracking data into the Unity Input System as virtual devices.

Features

• Virtual gaze device (screen position + delta)
• Virtual head angle device (screen position + delta + rotation)
• Virtual head position device (position + delta + distance)

Requirements

• Unity 6.0 or newer
• Unity Input System package 1.7 or newer (com.unity.inputsystem)
• Tobii Game Integration API SDK v9.0.4 or newer. https://developer.tobii.com/pc-gaming/downloads/

Tobii SDK Setup

This package does not ship the Tobii Game Integration SDK files. You need to copy the required SDK files from the official Tobii SDK into your Unity project.

1. Add the managed API DLL

Copy the managed SDK assembly into your project Plugins folder:

• Assets/Plugins/Tobii.GameIntegration.Net.dll

Do not include TobiiGameIntegrationApi.cs when using the managed DLL path.

2. Add the native runtime DLL

Copy the native plugin DLL into Plugins:

• Assets/Plugins/tobii_gameintegration_x64.dll

3. Verify Unity import settings

Select each DLL in Unity and confirm Plugin Inspector settings.

For Tobii.GameIntegration.Net.dll (managed):

• Auto Reference enabled
• Included for Editor and target runtime platforms

For tobii_gameintegration_x64.dll (native, Windows x64):

• Editor enabled
• Standalone enabled
• Windows x86_64 enabled

Installation (Git URL)

In Unity Package Manager:

1. Open Window > Package Manager.

2. Click + > Add package from git URL...

3. Enter your repository URL:

   https://github.com/Adroit-Studios/Unity-TobiiGameIntegration-InputSystemAdapter.git

Once installed, go to package manager, select this package then go to the "Samples" tab in order to install example scene and assets.

Quick Start

1. Add TGIHardwareManager to a scene object.
2. Add TGIVirtualInput to a scene object.
3. Create Input Actions that bind to the virtual device controls (TGIGaze, TGIHead, TGIHeadPosition).
4. Enter Play Mode and verify functionality using the debug visualizations built into the hardware manager.

Notes

• In Editor, use Free Aspect in Game view for accurate coordinate behavior.
• Ensure required Tobii native DLLs are present for your target platform and build type.

License

See LICENSE.md.