Noise Map

For functionality shared with other 3D maps, see the following topics:

Coordinates Rollout (3D)

Output Rollout

Noise Type

Regular—Generates plain noise. Basically the same as fractal noise with the Levels setting at 1. When the noise type is set to Regular, the Levels spinner is inactive (because Regular is not a fractal function).

Fractal—Generates noise using a fractal algorithm. The Levels option sets the number of iterations for the fractal noise.

Turbulence—Generates fractal noise with an absolute value function applied to it to make fault lines.  

Regular, Fractal, Turbulence

Size—Sets the scale of the noise function.

Noise Threshold—When the noise value is above the Low threshold and below the High threshold, the dynamic range is stretched to fill 0-1. This creates a smaller discontinuity (technically, 1st order instead of 0 order) at the threshold transition and produces less potential aliasing.

High—Sets the high threshold.

Low—Sets the low threshold.

Levels—Determines how much fractal energy is used for the Fractal and Turbulence noise functions. You can set the exact amount of turbulence you want, and also animate the number of fractal levels.

Phase—Controls the speed of the animation of the noise function. Use this option to animate the noise function.

Swap—Switches the position of the two colors or maps.

Color # 1 and Color # 2—Display the Color Selector so you can choose one or the other of the two principal noise colors. Intermediate color values are generated from the two colors you select.

Maps—Select the bitmaps or procedural maps to appear in one or the other noise color.

Turn on the check boxes to make the maps active.