roll property

The roll of the camera.

The angle around the y-axis (the direction of sight) at which the camera is rotated in the East, North, Up (ENU) ground reference frame. Positive values rotate counterclockwise in view space (for example, when looking north, 90 means the top of the screen points west). The value is between 0 and 360, where 0 is horizontal and 180 is upside down.