Surface 1D Noise
The Horizon. Generates a vertical surface mask using 1D noise applied horizontally. Everything below the calculated line is solid (1.0).
Ports
| Port | Type | Direction | Description |
|---|---|---|---|
| Output |  Float | Output | The generated vertical mask. |
Details
This node is the primary way to create hilly terrain or cave floors. Unlike 2D noise which creates patches, Surface 1D Noise creates a continuous horizontal line that varies in height, filling everything beneath it.
Parameters
- Base Height: The average vertical position of the surface (0-1).
- Amplitude: How far the hills deviate above and below the base height.
- Frequency: Controls the horizontal width of the hills.
- Octaves: Adds layers of detail to the hill shapes.
- Reference Height: Optional. If set to a specific tile height, ensures the hills look the same even if the map height is changed later.