Noise (Expression Function Reference)

The Function Random Noise command in the expression editor inserts the token noise(<x>,<y>,<z>) at the insertion point in the editing pane. This token generates random but continuous values between 0 and 1 at each frame. You can then multiply and add to the result to obtain noise patterns in any value range. Replace the dummy arguments as follows:

Replace each argument with an expression. Different combinations result in different noise patterns.

At least one argument should be an expression that varies over time; for example, Fc or T. You can multiply or divide the variable expression to change the frequency of the noise.

Example 1

noise(Fc,1,2)

Generates continuous random numbers between 0 and 1.

Example 2

5*noise(Fc,1,2)+2

Generates continuous random numbers between 2 and 7.

Example 3

noise(Fc/20,1,2)

Generates low-frequency noise.

Example 4

noise(Fc,0,0) + noise(Fc/2,4,0)/2 + noise(Fc/4,1,1)/4

Generates a complex noise pattern composed of different frequencies and amplitudes.

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