The Fractal Noise texture node generates a fractal-based pattern (figure 1). 


Fractal Noise

Figure 1: The Fractal Noise node and it's associated parameters 


Fractal Noise Parameters

Mode - Specifies whether scalar or vector mode is used to calculate the fractal noise. 

Colors 1 & 2 - Specifies the two colors used to generate the fractal noise. 

Time - Shifts the fractal pattern over time. 

Octaves - Specifies the multiple frequencies in which the fractal pattern is repeated.

Distortion - Determines the scale of random displacement applied to the fractal pattern. 

Lacunarity - Controls the size of the space in the fractal texture pattern. 

Gain - An amplitude multiplier per iteration where higher values will result in a flatter pattern. 

Turbulent - Adds an additional layer of noise to the fractal pattern. 

Transform Pin- Positions, scales, and rotates the surface texture.

Projection Pin - Sets how the texture projects onto the surface.