Firstborn/Library/PackageCache/com.unity.shadergraph@12.1.8/Documentation~/Constant-Node.md
Schaken-Mods b486678290 Library -Artifacts
Library -Artifacts
2023-03-28 12:24:16 -05:00

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# Constant Node
## Description
Defines a **Float** of a mathematical constant value in the shader.
## Ports
| Name | Direction | Type | Binding | Description |
|:------------ |:-------------|:-----|:---|:---|
| Out | Output | Float | None | Output value |
## Controls
| Name | Type | Options | Description |
|:------------ |:-------------|:-----|:---|
| Mode | Dropdown | PI, TAU, PHI, E, SQRT2 | Sets output constant value |
## Generated Code Example
The following example code represents one possible outcome of this node per constant type.
**PI**
```
float _Constant_PI = 3.1415926;
```
**TAU**
```
float _Constant_TAU = 6.28318530;
```
**PHI**
```
float _Constant_PHI = 1.618034;
```
**E**
```
float _Constant_E = 2.718282;
```
**SQRT2**
```
float _Constant_SQRT2 = 1.414214;
```