# Hillshade

Hillshades are used to visualize the valleys and ridges encoded in elevation raster data.

Hillshade visualizations are defined using `“type”: “hillshade”` and, support the following properties:

| Field name  | Description                                                                         |
| ----------- | ----------------------------------------------------------------------------------- |
| `color`     | An array of colors that will be used in the hillshade. From less elevation to more. |
| `source`    | The light angle. 0 is North, 90 East, …                                             |
| `intensity` | Controls the intensity of a hillshade.                                              |

The following map is an example of a raster layer using a hillshade visualization

![](https://293097899-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLlIfNdbm4rCsu755xrdc%2Fuploads%2FQj0604sv6pCDbEmBvHvb%2FScreenshot%202024-04-12%20at%2013.36.53.png?alt=media\&token=f9df60de-8207-4adb-8f18-e559ee586098)

with the following style

```jsx
{
  "version": "2.3",
  "type": "hillshade",
  "config": {"band": 1},
  "legend": {},
  "paint": {"isSandwiched": false}
}
```

Felt also supports adding color to hillshades by defining a `color` property in the style

![](https://293097899-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLlIfNdbm4rCsu755xrdc%2Fuploads%2FzHsPctSca1tv0e1clnM3%2FScreenshot%202024-04-12%20at%2013.42.47.png?alt=media\&token=50112b5f-1110-45e8-b422-010bf5ef949f)

which is defined by the following style

```jsx
{
  "config": {"band": 1, "steps": [-154.46435546875, 7987.457987843631]},
  "legend": {},
  "type": "hillshade",
  "version": "2.3",
  "paint": {
    "isSandwiched": false,
    "color": "@feltHeat",
    "source": 315,
    "intensity": 0.76
  }
}
```


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