We have created eye tracking add-ons for the current range of leading VR and AR platforms. Our add-ons enable eye tracking without compromising your VR or AR experience.
You can use the VR or AR hardware you already own, and augment it with our tool-free, drop-in eye tracking hardware.
You can use our software platform, or roll your own. With our open source software and direct access to the raw eye video feeds you are never locked into a platform.
Our add-ons give your AR/VR Headset eye tracking superpowers. Eye videos are transferred to your host via USB 2.0.
The hardware is easily attached and removed. Eye cameras can run up to 200hz and have a latency of 4.5ms. Fast enough for interaction applications and detection of saccades and quick fixations.
There is no one size fits all approach - that is why we made Pupil Service.
Pupil Service is based on Pupil Capture, and designed to be used as a "service" to provide your applications access to all data: eye videos, pupil data, gaze data, and more.
Technical Specifications & Performance
VR and AR add-ons share many of the same specifications due to our modular design approach. There are subtle differences in specs and performance where noted in the table below.
|Mono | Stereo||Both, depending on desired setup|
|Field of View||HTC Vive / Vive Pro: up to HMD limits. Epson BT-200: greater than 100 deg|
|Processing latency||3-4ms on i5 CPU|
|Saturation||Interconnected bandwidth USB 2.0 ~60% saturation|
|Combined Eye Gaze||Yes|
|Independent Eye Gaze||Yes - 1 gaze point per eye|
|Pupil Diameter||Yes - units in pixels using 2d appearance, units in mm using 3d model|
|Velocity | Acceleration||Can be implemented if desired|
|Eye Accomodation||Yes, using binocular vergence|
|Power | Performance | Memory|
|Host CPU % Utilization||50% of one core per eye|
|SDK||Through network message based API|
|Plugin for Game Engines|| Reference plugin implementation for Unity3D
Reference plugin official Vizard 6 plugin
Our goal is to work with and support a community of researchers and developers in creating reusable open source software for eye tracking in HMDs.
Many researchers and developers have already thought of, or implemented eye tracking software HMDs. Instead of continuing to reinvent the wheel, we have formed a community with the goal of sharing knowledge and tools.