g_Fractal_Noise

Reference
Index

    This generator is a fractal noise function that can be made to repeat.

How Does It Work?

    The FRACTAL NOISE generator provides a basic fractal noise pattern with the help of the special controls Roughness, Lacunarity, and Input Seed.  By enabling the Repeat Flag, you can force the starting and ending values of FRACTAL NOISE to be equal so the function repeats without discontinuity.  The standard generator parameters are included for manipulating the fractal function.

Hints!

    The FRACTAL NOISE generator is quite useful for noising up other components. For example, you can link FRACTAL NOISE to the Mortar Width of Bricks to roughen the edge of the bricks.  Make sure that Repeat Flag is enabled in this case to avoid discontinuities.

Standard Generator Parameters

 

Amplitude

Describes the function height above and below the horizontal axis. The default value is 50.0%. Increase the function height up to 100.0% or it flatten out at 0.0%.

 

Shift

Repositions the function vertically, above or below its default position on the horizontal axis. At 100.0% the function is entirely above this axis; at 0.0% it's entirely below. The default is 50.0%.

 

 

 

 

Frequency

Compresses the function horizontally when the value is greater than the default of 1.0. Or stretches the function horizontally when the value is less than 1.0.

 

Phase Amount

Phase repositions the function along the horizontal axis. Phase Amount gives a percent value for the phase range set by Phase Min and Phase Max.

 

 

 

 

Phase Min

Sets one end of the phase range.

 

 

 

 

Phase Max

Sets the other end of the phase range.

 

Lower Clamp

Controls the minimum function value. The default is 0.0%.

 

Upper Clamp

Controls the maximum function value. The default is 100.0%.

 

 

 

 

Invert

When enabled, flips the function about the horizontal axis.

 

 

 

 

Reverse

When enabled, reverses the function. For symmetrical functions, you may not see the difference.

 

Input

Function re-mapping input. Link this to an linear time component to shift the function into the time domain.

Percent Component Parameters

 

 

 

 

Roughness

The closer the value gets to 100.0%, the more dense and jagged the noise function becomes.

 

 

 

 

Lacunarity

Scales the relative layers of fractal noise.

 

 

 

 

Input Seed

An integer for the random number generator. In this case, the random number generator creates a unique noise pattern with each seed.

 

 

 

 

Repeat Flag

When checked, the function will repeat.

 

 

 

 

Vary Regions

When enabled and the parent link is from a regional parameter, each region will get a unique fractal function..

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