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The interface ​

The editor has four main areas:

AreaWhat it does
Nodes panel (left)Every node, by category. Drag one onto the graph or double-click it.
GraphWhere you connect nodes. Every node shows a live thumbnail of its output.
ViewportA live 3D preview of the node you're viewing. Press Tab for the 2D map.
Settings (right)The selected node's settings. Click empty graph space for world settings.

The graph ​

  • Add nodes from the Nodes panel, or right-click the graph and start typing to search.
  • Connect by dragging from an output to an input.
  • Click a node to preview it and edit its settings on the right.
  • Number fields work like Blender's: drag sideways to change the value, or click to type one.

Graph tabs ​

A project has three graphs, each in its own tab:

  • Terrain: the shape of the land, including water and erosion.
  • Vegetation: trees, shrubs, grass and debris populations.
  • Colour: colour maps, splat maps and normal maps.

Send a Terrain output to another tab with the → Vegetation or → Colour buttons in its settings. It arrives there as a portal node.

Viewport and 2D map ​

ActionControl
OrbitDrag
PanShift-drag or middle-drag
ZoomScroll
Frame the terrainF
Toggle 3D / 2D mapTab

The 2D map shows the position and value under the mouse. It is also where you draw polygons.

Masks (Slope, Height Mask, Curvature…) are shown as a colour overlay on the terrain they came from.

Status bar ​

The status bar shows how much was recomputed after each change (for example "1 node computed, 7 ms") and an Update button when a new release is available.

Other panels ​

Code dual-licensed MIT / Apache-2.0. "LibreTerrain" and its logo belong to EllisonDigital.