Noise Texture


The Noise texture node is useful for creating and controlling the appearance of intentional noise (figure 1).


Figure 1: The Noise texture applied to a Diffuse materialUsed for dull, non-reflecting materials or mesh emitters. on a plane primitive


Noise Texture Attributes

Power - Controls the texture's overall brightness.

Noise Type - There are four noise types:

Figure 2 compares the different noise types applied to spheres.


Octaves - Adjusts the scale of detail in the noise.

Omega - Adjusts the noise detail's sharpness.

Transform - Accepts an Octane Transform node, which changes the noise's position and scale.

Projection - Accepts an Octane Projection node, which determines how the noise maps to the surface. If left blank, the object's UV texture coordinates determine the mapping.

Invert - Reverses the noise colors.

GammaThe function or attribute used to code or decode luminance for common displays. The computer graphics industry has set a standard gamma setting of 2.2 making it the most common default for 3D modelling and rendering applications. - Adjusts the noise's luminance values.

Contrast - Adjusts the noise' overall contrast.