Regions area

After setting up the Marker Set list, use the Regions area to define the zone of movement for the model’s main facial components. The Regions area is available only when the Active option in the Rest Pose area is disabled, and consists of the Find button and the Display option.

MoCap pane A. Regions area

Find

The Find button automatically defines the zone of movement for the facial markers using bounding boxes around the mouth, eyes, cheeks, nostrils, and eyebrows. The face must be in the rest pose and be pointed towards the Reference positive Z-axis.

Display

To display the bounding boxes in the Viewer window, activate Display after clicking Find. Bounding boxes appear as purple cubes around the eyes, eyebrows, cheeks, and mouth of your face model.

Bounding boxes display in purple around the eyes, eyebrows, and lips of the optical sensors. Cheeks and nostrils are not defined for this Marker set.

Bounding boxes are Rigid bodies that limit the area in which of your face model can move. If the shapes are set to move outside of a bounding box region, they do not reach to their full values.

You can scale the global movement using the bounding boxes. For example, if there are not enough face markers, you may want to define facial areas so that they fit the boxes more accurately.

When you scale bounding boxes, you affect the volume and shape that the box defines. For example, increasing the size of the bounding box for the mouth decreases the range of movement. Conversely, decreasing the size of the box increases the range.

The data for the bounding boxes comes from the optical sensors that you used to define your Marker set

Right Eye	Upper and lower right eye sensors (2)
Left Eye	Upper and lower left eye sensors (2)
Right Eyebrow	Inner and outer right eyebrow sensors (2)
Left Eyebrow	Inner and outer left eyebrow sensors (2)
Mouth	Right, left, upper, and lower mouth sensors (4)
Right Cheek	Right cheek sensor
Left Cheek	Left cheek sensor
Right Nostril	Right nostril sensor
Left Nostril	Left nostril sensor

Note: Remember that both the size of your optical sensors and of the bounding boxes in the Viewer window are adjustable, so the bounding boxes might not match their corresponding optical sensors exactly.