Rasagar/Library/PackageCache/com.unity.shadergraph/Documentation~/Gradient-Node.md

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2024-08-26 13:07:20 -07:00
# Gradient Node
## Description
Defines a constant **Gradient** for use in [Shader Graph](index.md), although internally to the shader this is defined as a **struct**. To sample the **Gradient** it should be used in conjunction with a [Sample Gradient Node](Sample-Gradient-Node.md). When using a separate **Gradient Node**, you can sample a **Gradient** multiple times with different Time parameters.
## Ports
| Name | Direction | Type | Description |
|:------------ |:-------------|:-----|:---|
| Out | Output | Gradient | Output value |
## Controls
| Name | Type | Options | Description |
|:------------ |:-------------|:-----|:---|
| | Gradient Field | | Defines the gradient. |
## Generated Code Example
The following example code represents one possible outcome of this node.
```
Gradient Unity_Gradient_float()
{
Gradient g;
g.type = 1;
g.colorsLength = 4;
g.alphasLength = 4;
g.colors[0] = 0.1;
g.colors[1] = 0.2;
g.colors[2] = 0.3;
g.colors[3] = 0.4;
g.colors[4] = 0;
g.colors[5] = 0;
g.colors[6] = 0;
g.colors[7] = 0;
g.alphas[0] = 0.1;
g.alphas[1] = 0.2;
g.alphas[2] = 0.3;
g.alphas[3] = 0.4;
g.alphas[4] = 0;
g.alphas[5] = 0;
g.alphas[6] = 0;
g.alphas[7] = 0;
return g;
}
Gradient _Gradient = Unity_Gradient_float();
```