> For the complete documentation index, see [llms.txt](https://docs.world-creator.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.world-creator.com/reference/terrain/biome/filters/design/curve.md).

# Curve

## **Overview**

The Curve Filter allows for precise customization of terrain altitude using a spline-based curve. The filter maps terrain height to a curve, enabling detailed adjustments.

## **Parameters**

<table><thead><tr><th width="179.699951171875">Property</th><th>Description</th></tr></thead><tbody><tr><td><strong>Curve</strong></td><td>Build a curve to be applied to the terrain. Use 2x LMB to add a new control point and RMB on a point to delete it.</td></tr><tr><td><strong>Source Range</strong></td><td>Set the minimum and maximum height values taken from the terrain. The minimum value corresponds to the 0 point on the graph, and the maximum value corresponds to the 1 point on the graph.<br>Typically, you will want the minimum and maximum values of your terrain (displayed below the height meter on the left) to fall within your source range.</td></tr><tr><td><strong>Destination Range</strong></td><td>Sets the out coming height of the 0 and 1 points of the graph.</td></tr></tbody></table>

## **Results**

<div><figure><img src="/files/9OCrpjTsK0WQyM7PZZ1c" alt=""><figcaption></figcaption></figure> <figure><img src="/files/F837G4ZCicJxulxAkxU9" alt=""><figcaption></figcaption></figure></div>


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