For a description of the Reverse utility, see Reverse.
In the following, the color of a Marble texture is reversed. This means that 0.9 is subtracted from 1, making the color value 0.1. The result can be expressed as in the following formula:
Output = 1 - Input
You can enter values for Input to get the effect you want in the Attribute Editor. Reverse outputs and accepts single-component values, two-component values, and all three-component values.
To reverse attributes
If the attribute that you want to reverse does not appear by default, select the node and click 3 so that the node appears in full mode. Enter a search term in the filter field. In this case, color is entered to streamline the node to only show attributes with color in their names.
For more information about node view modes, see Change view modes in the Node Editor and Hypershade.