OctaneRender® for Blender

The Fractal Flow Noise procedural texture produces a 3D noise pattern comprised of two color parameters (figure 2). It differs from Fractal Noise as it provides an additional Flow parameter that warps the noise of each octave to create fluid-like motion and advection effects. 

Figure 1: Fractal flow noise Node

Figure 2: A Fractal Flow Noise texture example

Fractal Flow Noise Parameters

Colors 1 and 2 - Specifies the two colors used for the flow noise.

Flow - Controls the position of the noise pattern, capable of producing an animated effect.

Lacunarity - Specifies the size of the gaps within the noise pattern.

Flow Rate - A multiplier per iteration for the flow coordinate.

Gain - Amplitude multiplier per iteration, provides an overall contrast control for the noise pattern.

Advection - Provides both an initial advections amount and an advection multiplier per iteration, where higher values will smooth the noise results.

Octaves - Changes the number of octaves over which the noise function is calculated, otherwise known as frequencies.

Attentuation - The power of the falloff applied to the final result, providing an overall lightening or darkening of the noise pattern.

Step Noise - Provides a smooth noise result when disables, and a stepped noise result with enabled.

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

Projection - Sets how the texture projects onto the surface.