mathe/Library/PackageCache/com.unity.shadergraph@14.0.8/Documentation~/Posterize-Node.md

Posterize Node

Description

Posterization or posterisation of an image entails conversion of a continuous gradation of tone to several regions of fewer tones, with abrupt changes from one tone to another.

https://en.wikipedia.org/wiki/Posterization

This node returns the posterized (also known as quantized) value of the input In into an amount of values specified by input Steps.

Ports

Name	Direction	Type	Description
In	Input	Dynamic Vector	Input value
Steps	Input	Dynamic Vector	Input value
Out	Output	Dynamic Vector	Output value

Generated Code Example

The following example code represents one possible outcome of this node.

void Unity_Posterize_float4(float4 In, float4 Steps, out float4 Out)
{
    Out = floor(In / (1 / Steps)) * (1 / Steps);
}