Interacting with objects in XR experiences via eye- or head-tracking

In this section, you will not only learn about eye-tracking itself and how it can enrich your XR experience, but you will also implement eye-tracking functionalities to your XR experiences, regardless of whether your VR headset supports eye-tracking or not.

Understanding eye-tracking and potential use cases

From reading a person’s intent to enhancing digital interactions, eye-tracking technology is revolutionizing how technologies of all kinds perceive and interpret human behavior.

The eyes are often dubbed the “windows to the soul” due to their ability to express and convey emotions, intent, and attention. Biologically speaking, several key aspects of the eyes play into this:

• Pupil dilation: Often a subconscious response, the pupils can dilate or contract based on emotional states, levels of attention, or reactions to stimuli. For instance, someone’s pupils might dilate...