Apple Shake 4 - Manual (Page 891)

Chapter 28 Filters 891
shape
A pop-up menu that lets you choose the shape of the flaring in the resulting image.
The fast modes give you low quality but process quickly. The circle, square, hexagon,
and octagon give you a superior look, but are significantly more processor-intensive to
render. The options are:
• fast gaussian
• fast box
• circle
• square
• hexagon
• octagon
boostPoint
The image value where the superwhite boosting starts. If boostPoint is set to .75, RGB
values above .75 are boosted to increase flaring effects. A high value generally
decreases flare areas, since fewer candidate pixels are flared. By default this is set to .95.
superWhite
Max value to boost image to. A value of 1 in the original will be boosted to this value.
By boosting this, you increase the brightness of the flare area. Values around 50 yield a
very strong boost.
near
The value of distance toward the camera at which maximum blur occurs.
far
The value of distance away from the camera at which maximum blur occurs.
focusCenter
The distance from the camera at which there is no blur. By default this is set to (far-
near)/2+near.
focusRange
The distance away from the focusCenter, both toward and away from the camera, that
remains unblurred.
steps
The amount of steps that the total range is divided between.
stepBlend
The mixing of the different steps. 0 is no mixing and good for getting a feel for your
step ranges. 1 is complete, linear blending.