Face Landmarks

In addition to tracking the center of the head (known as the Origin), you can use Face Landmarks to track content from various places on the user’s face. These landmarks will remain accurate, even as the user’s expression changes.

The available landmark positions available are:

Landmark Position	Diagram ID
EYE-LEFT	A
EYE-RIGHT	B
EAR-LEFT	C
EAR-RIGHT	D
NOSE-BRIDGE	E
NOSE-TIP	F
NOSE-BASE	G
LIP-TOP	H
LIP-BOTTOM	I
MOUTH-CENTER	J
CHIN	K
EYEBROW-LEFT	L
EYEBROW-RIGHT	M

Note that ‘left’ and ‘right’ here are from the user’s perspective.

To assign a component to a landmark position point, simply add the component to the FaceLandmarkGroup.

Adding a Face Landmark

By default, the Anchor Group exposes the following Face Landmarks:

• Left Eye
• Right Eye
• Mouth Center
• Chin

Adding a new Face Landmark

However, you may add additional Face Landmark components by using the following steps:

1. Right click on the Anchor Group
2. Go to New, then find the AR category. Select FaceLandmarkGroup to add it to the Hierarchy
3. Click on the new FaceLandmarkGroup in the Hierarchy and use the Landmark Position property drop-down box to select the appropriate Face Landmark

Updating a Face Landmark type

You can change the FaceLandmarkGroup type of this component at any time. To do so:

1. Click on your chosen FaceLandmarkGroup component in the Hierarchy
2. Head to the Node Properties Panel. Find the Landmark Position drop-down menu and then select a new attachment point