Graphics Reference
In-Depth Information
Figure 3.1. Bokeh example from a real camera.
how to use the SPUs to analyze the framebuffer luminance and generate bokeh
draw calls.
3.2 Bokeh Behind the Scenes
To understand what the bokeh effect is, we need to first understand depth of
field. Depth of field is the distance from the focal plane in which objects appear
in focus. (See Figure 3.2.)
Objects outside this region are considered out of focus and will appear blurred.
In film or photography, depth of field is mainly a characteristic of the lens and
focus distances. One important thing to understand is that objects don't go from
Depth of field
Figure 3.2. Depth of field is the distance between the nearest and farthest objects in a
scene that appear acceptably sharp in an image.
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