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# Fractal Flow Noise

The **Fractal Flow Noise** procedural texture produces a 3D noise pattern comprised of two color parameters (figure 1).

Figure 1: The Fractal Flow Noise texture applied to a on a plane primitive

## 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.

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