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Yet Another Fractal Noise Background

An After Effects tutorial By Stephen Schleicher

This marks the 108th After Effects tutorial I have written, and by far, the most covered topic has been the Fractal Noise effect.  This is such a versatile effect that is perfect when creating animated backdrops for your projects.  In this exercise, youll learn yet another formula in creating a Fractal Noise background.

NOTE:  Even though I will be using After Effects 7.0, this background can be done in older versions of the software.

Step 1:  Launch Adobe After Effects and create a New Composition by pressing Command+N on the Mac or Control+N on the PC.  Use the NTSC DV preset with a Duration of 10 Seconds.



Step 2:  Create a New Solid by pressing Command+Y on the Mac, or Control+Y on the PC.  Make the solid the same size as the composition.  Color does not matter.  Click OK.

Step 3:  Apply the Fractal Noise effect to the layer.

While the default looks great, were not going for the cloudy background here.  In the Effect Controls Panel, change the Noise Type to Block.

Step 4:  For a simple block pattern, lower the Complexity to 1.0.

Step 5:  I like this, but think fewer, larger blocks will work better.  Twirl down the Transform property in the Effect Controls panel, and increase the Scale amount to 125, and adjust the Offset Turbulence to 236.7 on the X, and 221 on the Y.  This will keep the pattern symmetrical in your composition.


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