World Tracking Events
In addition to using the various ...Layer Clip parameters, the WorldTracker component exposes event handlers that you can use to add further interaction to your AR experiences.
| Event | Description |
|---|---|
onClick |
Event which is emitted when a mouse button is clicked. |
onPointerDown |
Event which is emitted when the user touches their device (e.g. taps a button) or when a mouse button is clicked. |
onPointerUp |
Event which is emitted when a touch or click has been released. |
onPointerEnter |
Event which is emitted when a pointer (e.g a mouse cursor or touch input) enters the bounding area of a specific element. |
onPointerMove |
Event which is emitted when a pointer (e.g a mouse cursor or touch input) moves within the bounding area of a specific element. |
onPointerLeave |
Event which is emitted when a pointer (e.g a mouse cursor or touch input) exits the bounding area of a specific element. |
onIntersectionEnter |
Event which is emitted when an individual element enters (intersects) with another individual element (e.g. Starting a 3D animation when the camera focuses on a 3D component). |
onIntersectionLeave |
Event which is emitted when an individual element exits (intersects) another individual element (e.g. Pausing a 3D animation when the camera focuses away from a 3D component). |
Using events
You can use events to increase engagement by adding interactive elements to your Mattercraft project.
You can use Behavior Actions to add such interactivity.
Next article: World Tracking best practices