Controls For The Fractal Noise Effect - Adobe AFTER EFFECTS 7.0 Manual

Original (left), result with two kinds of noise (center and right)

Controls for the Fractal Noise effect

Specifies the fractal shape you want to use to create the noise.
Fractal Type
Specifies the type of noise.
Noise Type
Inverts the noise. Select this option to create a negative or inverse of the current noise layer. Black areas
Invert
become white, and white areas become black.
Adjusts the contrast of the noise layer. The default value is 100. Higher values create larger, more sharply
Contrast
defined areas of black and white in the noise, generally revealing less subtle detail. Lower values result in more areas
of gray, softening or muting the noise. A layer's contrast is also affected by the Overflow option.
Adjusts the brightness of the noise layer.
Brightness
Remaps the values that fall outside of the grayscale range of 0–255 using one of the following options:
Overflow
•
Remaps values so that any value above 255 is displayed as pure white, and any value below 0 is displayed as
Clip
pure black. The Contrast value controls how much of the image falls outside of this range. Higher values result in a
mostly black and/or white image with less gray area. Therefore, higher contrast settings display less subtle fractal
detail. When used as a luma matte, the layer has sharper, better defined areas of transparency.
•
Remaps values on an infinite curve so that all values stay in the range. This option reduces contrast
Soft Clamp
and makes fractals appear gray with few areas of pure black or pure white. When used as a luma matte, the layer
contains subtle areas of transparency.
•
Remaps triangularly, so that values above 255 or below 0 fall back into the range. This option reveals
Wrap Back
subtle detail when Contrast is set above 100. When used as a luma matte, the layer reveals more detailed textured
areas of transparency.
Specifies the size and rotation of the noise.
Transform
•
Rotates the fractals. Scale specifies the proportional scale of the fractal shapes; the default is 100.
Rotation
Uniform Scaling scales the noise uniformly. Scale Width and Scale Height specifies the width size and height size
individually for the fractal shapes; available only when Uniform Scaling is not selected.
•
Specifies the portion of the fractal that is visible in the Composition panel. Because the fractal
Offset Turbulence
shapes are infinite in all directions, only a portion of the fractal is visible at any given time. Use this control to
reposition the shape in the layer.
•
Specifies that the perspective is influenced by the Sub Settings control Sub Scaling. This option
Perspective Offset
makes it possible to create a perspective effect when animating the Offset Turbulence.
Adjusts the visible level of detail in the fractal shapes. Lower values result in a softer, almost blurred
Complexity
appearance. Higher values result in more distinct fractal shapes.
Note: Increasing Complexity results in longer rendering times. If appropriate, try reducing the Size rather than increasing
Complexity to achieve similar results and avoid longer rendering.
ADOBE AFTER EFFECTS 7.0
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User Guide