Overview
The Depth of Field group of attributes affects the way out-of-focus portions of the image are rendered.
The Depth Of Field group
Polygonal Aperture
Turning this attribute on allows customization of the aperture shape using the following attributes. This attribute is off by default, which produces a perfectly round aperture.
Number of Blades
The aperture is shaped after a regular polygon; this attribute specifies how many sides this polygon has. This can also been seen as the number of blades of the diaphragm that controls the aperture. The minimum number of blades is 3, which produces triangular out-of-focus highlights. This attribute is only available when the Polygonal Aperture attribute is turned on.
Rotation
The angle of the rotation to apply on the aperture, in degrees. This attribute is only available when the Polygonal Aperture attribute is turned on.