Firstborn/Library/PackageCache/com.unity.shadergraph@12.1.8/Documentation~/Saturation-Node.md

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2023-03-28 13:24:16 -04:00
# Saturation Node
## Description
Adjusts the saturation of input **In** by the amount of input **Saturation**. A **Saturation** value of 1 will return the input unaltered. A **Saturation** value of 0 will return the input completely desaturated.
## Ports
| Name | Direction | Type | Binding | Description |
|:------------ |:-------------|:-----|:---|:---|
| In | Input | Vector 3 | None | Input value |
| Saturation | Input | Float | None | Saturation value |
| Out | Output | Vector 3 | None | Output value |
## Generated Code Example
The following example code represents one possible outcome of this node.
```
void Unity_Saturation_float(float3 In, float Saturation, out float3 Out)
{
float luma = dot(In, float3(0.2126729, 0.7151522, 0.0721750));
Out = luma.xxx + Saturation.xxx * (In - luma.xxx);
}
```