Iridescent Procedural


The Iridescent texture node produces an effect where surfaces appear to gradually change color as the angle and illumination of view changes (figure 1).


Figure 1: The Iridescent node applied to a scene object



Figure 2: The Iridescent node and it's associated parameters


Iridescent Parameters

Base Color

Determines the base color underlying the other iridescent colors.


Primary Color

The first color layer above the base color.


Secondary Color

Provides an additional color layer to mix with the base and primary colors.


Tertiary Color

Provides an additional color layer to mix with the secondary, primary, and base colors.


Thickness Map

Determines the thickness of the color bands.


Thickness Scale

A scale value applied to the thickness map.

Iridescent Exponent

Adjusts the overall shape of the iridescent effect.



Determines how many color bands are generated.


Noise Frequency

Adjusts the smoothness of the color bands.


Noise Scale

Determines the scale of the noise parameter.


Period Offset

Adjusts the positioning of the color bands across the surface.


Iridescence Weight

Blend the primary, secondary, and tertiary color bands with the base color.



Positions, scales, and rotates the surface texture.



Sets how the texture projects onto the surface.