Graphics Programs Reference
In-Depth Information
Depth of Field
Depth of Field ( DOF ) is the simulation of lens focus on the subject of the scene. This
effect emphasizes on the subject by blurring everything ahead and behind the subject.
In the blurred region, all the tiny highlights expand to exhibit shapes called Bokeh .
The Defocus node
Blender provides a Defocus node to simulate DOF. The following screenshot depicts
the result of the DOF application as a postprocess in Blender Compositor. From the
following screenshot, it can be observed that the emphasis is on the red block, blur-
ring the other blocks and simulating the focus effect. This node requires an image and
corresponding Z Depth inputs.
The Bokeh type
The Bokeh type can be set to modify the shape of the Bokeh, emulating a circle,
triangle, square, pentagon, hexagon, heptagon, or octagon. Beyond octagon, there
will not be any significant difference, as compared to the circle mode. The following
screenshot shows different Bokeh shapes on the blue block:
Angle
Angle adds a rotational offset, in degrees, to the chosen Bokeh shape.
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