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# Core features

In this section, we will cover the main functionality that the SDK provides out of the box. We will assume that you have already explored the General API concepts and Reference frames sections.

Real-time tracking

Learn about retrieving real-time gaze and head pose tracking data.

Real-time tracking
In-game camera control

Use the SDK to control the in-game camera to boost immersion.

In-game camera control
Dynamic and immersive HUDs

Learn how to make your game’s HUDs react to the user’s gaze.

Dynamic HUDs
Foveated rendering

Learn how to use foveated rendering to improve performance.

Foveated rendering
Reference frames
Real-time tracking