Adobe After Effects - Manual (Page 608)

Overflow
Clip
Wrap Back
Wrap
Random Seed
Noise Phase
Noise Options (Animation)
Cycle Noise
Cycle
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Noise
Hue
Lightness
Saturation
How the effect remaps values that fall outside the grayscale range of 0-255:
Values above 255 are mapped to 255. Values below 0 are mapped to 0.
Values above 255 or below 0 are reflected back into the 0-255 range. For example, a value of 258 (255+3) is reflected to 252
(255-3), and a value of -3 is reflected to 3.
Values above 255 and below 0 are wrapped back around into the 0-255 range. For example, a value of 258 wraps around to 2, a
value of 256 wraps around to 0, and a value of -3 wraps around to 253.
An input value to the random number generator for the noise. This control is active only if you choose Uniform Random or
Squared Random.
To produce flashing noise, animate the Random Seed control. To create smoothly animated noise, animate the Noise Phase value.
Specifies the placement of noise. This control is active only if you choose Uniform Animation or Squared Animation.
How noise is animated.
Alter the timing of the Noise Phase keyframes to adjust the speed of the Noise Phase cycles.
To save time animating the Noise Phase value, use the Cycle Noise option to create a seamless noise loop. Then, render the layer, and re-
import it as a new source footage item.
Produces a cycle of noise that plays through once in the specified amount of time.
Specifies the numbers of revolutions of the Noise Phase that the noise cycles through before it repeats (available only when Cycle
Noise is selected).
Noise HLS effect and Noise HLS Auto effect
The Noise HLS and Noise HLS Auto effects add noise to the hue, lightness, and saturation components of an image. The noise generated by the
Noise HLS Auto effect is automatically animated noise; you choose the speed of the animation. To animate the Noise HLS effect, use keyframes
or expressions. Controls for these effects are the same except for the Noise Phase or Noise Animation Speed control, which controls noise
animation.
These effects work with 8-bpc color.
Original (left), and with effect applied (right)
The type of noise. Uniform produces uniform noise. Squared creates high-contrast noise. Grain produces grainlike noise similar to film
grain.
The amount of noise added to hue values.
The amount of noise added to lightness values.
The amount of noise added to saturation values.
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