Roughen Edges Effect - Adobe AFTER EFFECTS 7.0 Manual

ADOBE AFTER EFFECTS 7.0
528
User Guide
Original (left), and with effect applied (right)

Roughen Edges effect

The Roughen Edges effect roughs up the edges of a layer's alpha channel by using calculations. It gives rasterized text
or graphics a naturally rough look, like that of eroded metal or typewriter text.
This effect works with 8-bpc color.
Original (left), and with effect applied (right)
Adjust the following controls for the Roughen Edges effect:
Specifies how the effect is applied to the alpha channel. If you choose an option that uses color, such as
Edge Type
Photocopy Color, specify the color using the Edge Color control.
Fills the effect areas with this color when you choose an Edge Type that uses color, such as Roughen
Edge Color
Color.
Specifies how far from an alpha channel edge the effect extends.
Border
Specifies how sharp or soft the roughened edge appears. Low values create softer edges, and high
Edge Sharpness
values create sharper edges.
Specifies how much of the introduced roughness is influenced by fractal calculations.
Fractal Influence
Specifies the scale of the fractal used to calculate the roughness.
Scale
Specifies the width or height of the fractal used to calculate the roughness.
Stretch Width or Height
Specifies the portion of the fractal shape that is present in the Composition panel, altering the
Offset (Turbulence)
shape of the distortion or roughness applied to your layer. Because the fractal shapes generated by this effect are
infinite in all directions, the result that appears on the layer is only a small portion of the entire fractal. Animating
the Offset control repositions the fractal, bringing a different portion of it into view. This alters the shape and texture
of the roughness.
Specifies the level of detail in the roughness. Higher Complexity values increase the detailed definition
Complexity
in the texture of the roughness. Lower Complexity values reduce the definition.
Note: Increasing complexity results in longer rendering times. Reduce the Scale value rather than increasing Complexity
to achieve similar results.