Primitives extend entities to:
- Introduce a syntax to something more familiar for newcomers to A-Frame.
- Alias
<a-entity>into something more specific like<a-sphere>. - Define a mapping from flat HTML attributes to inner-component properties.
- Introduce magic by allowing transformation of incoming HTML values.
- Bake certain components and component properties for a specific use case.
Example:
<a-box color="red" depth="5" height="2" width="3"></a-box>
<a-videosphere src="360.mp4"></a-videosphere>