Normal-Strength-Node.md

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# Normal Strength Node

## Description

Adjusts the strength of the normal map defined by input **In** by the amount of input **Strength**. A **Strength** value of 1 will return the input unaltered. A **Strength** value of 0 will return a blank (flat) tangent-space normal: vector (0, 0, 1). When encoded as a texture color in the 0–1 range, this corresponds to (0.5, 0.5, 1.0) or 128, 128, 255 in 8-bit.

## Ports

| Name        | Direction           | Type  | Binding | Description |
|:------------ |:-------------|:-----|:---|:---|
| In      | Input | Vector 3 | None | Input value |
| Strength      | Input | Float    | None | Strength value |
| Out | Output      |    Vector 3 | None | Output value |

## Generated Code Example

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

```
void Unity_NormalStrength_float(float3 In, float Strength, out float3 Out)
{
    Out = {precision}3(In.rg * Strength, lerp(1, In.b, saturate(Strength)));
}
```
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