User Guide

ADOBE PREMIERE PRO 2.0
User Guide
339
Roughen Edges effect: Original image (left), with Edge Type set to Roughen (center) and with Rusty Color (right)
Adjust the following controls for the Roughen Edges effect:
Edge Type Specifies how the effect is applied to the alpha channel. If you choose an option that uses color, such as
Photocopy Color, specify the color using the Edge Color control.
Edge Color Fills the effect areas with this color when you choose an Edge Type that uses color, such as Roughen
Color.
Border Specifies how far from an alpha channel edge the effect extends.
Edge Sharpness Specifies how sharp or soft the roughened edge appears. Low values create softer edges, and high
values create sharper edges.
Fractal Influence Specifies how much of the introduced roughness is influenced by fractal calculations.
Scale Specifies the scale of the fractal used to calculate the roughness.
Stretch Width Or Height Specifies the width or height of the fractal used to calculate the roughness.
Offset (Turbulence) Specifies the portion of the fractal shape that is present in the Project monitor, altering the shape
ofthedistortionorroughnessappliedtoyourclip.Becausethefractalshapesgeneratedbythiseffectareinfinitein
all directions, the result that appears on the clip 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.
Complexity Specifies the level of detail in the roughness. Higher Complexity values increase the detailed definition
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.
Evolution Creates subtle changes in the shape of the roughness. Animating this setting results in smooth changes or
evolution” of the roughness over time. Set keyframes for Evolution to determine how much the roughness will
evolve” over the period of time between keyframes. The more revolutions in a given amount of time, the more
rapidly the roughness changes. Higher Evolution values may result in less smooth changes in the roughness.
Note: Although the Evolution value is set in units called “revolutions,” it is important to realize that these revolutions are
progressive. The Evolution state continues to progress infinitely at each new value. Use the Cycle Evolution option
(explained below) to return the Evolution setting to its original state at each revolution.
Evolution Options EvolutionOptionsprovidecontrolsthatrendertheeffectforoneshortcycleandthenloopitfor
the duration of your project. Use the following controls to create a smooth, progressive, nonrepeating loop:
Cycle Evolution Creates a loop that forces the evolution state to return to its starting point.
Cycle Specifies the number of revolutions (of the Evolution setting) that the fractal noise cycles through before it
repeats. For example, if you set the evolution to occur over five revolutions and you set the Cycle value to 2, then the
evolution loops twice. The timing or speed of these Evolution cycles is determined by the amount of time allowed
between Evolution keyframes. The Cycle control is available only when you select Cycle Evolution.