The Noise procedural node creates and controls the appearance of intentional noise (figure 1)


Noise

Figure 1: The Noise node applied to a Diffuse material on the Octane logo 


Noise Texture Parameters

Power - Determines the overall brightness of the noise pattern. 

Noise Type - Select from five different noise generators.

    • Perlin - Similar to the Turbulence node when you disable Use Turbulence.
    • Turbulence - Similar to the Turbulence node when you enable Use Turbulencebut produces more contrast than the Perlin option. .
    • Circular - Produces a Worley noise-like pattern.
    • Chips - Produces a Voronoi noise pattern similar to Perlin but with a denser pattern.
    • Voronoi - Produces a Voronoi pattern.


Noise Types

Figure 2: The various noise types


Octaves - Sets the noise detail's scale.

Omega - Controls the fractal pattern detail.

Invert - Inverts the Noise texture values.

Gamma - Adjust the Noise texture's luminance values.

Contrast - Adjusts the Noise detail sharpness.

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

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