This is a heightmap-based terrain node for Godot Engine 2.1, written in GDScript.

I ported this plugin to Godot 3: https://github.com/Zylann/godot_heightmap_plugin
I used to also work on a module version: https://github.com/Zylann/godot_heightmap_module
I stopped support on Godot 2.

• Custom Terrain node

• Resizeable square between 1 and 1024 units of space

• Raise, carve and smooth the terrain in the editor

• Paint vertex colors to add textures with shaders

• Brush with customizable shape, size and opacity

• Takes advantage of frustum culling by chunking the terrain in multiple meshes

• Collisions

• Smooth or hard-edges rendering

• Save to image and normal map

• Terrain data saved inside the scene like Tilemap and Gridmap

• Edition behaviour works both in editor and game

• Undo/redo

• Experimental: quad rotation to improve shading in some cases

• Extras: sample assets in this repo :)

• Meshing is very slow (will this plugin remain pure GDScript?)

• Level of detail (non-trivial! Requires faster meshing)

• Baked mode for faster terrain loading (it is currently rebuilt from data both in editor and game)

• Save terrain data as a separate resource to unbloat the scene file

• Decorrelate resolution and size

• Make Terrain inherit Spatial so it can be moved around

• Paint meshes on top of the terrain (grass, trees, rocks...) <-- I want to make a vegetation generator plugin too :p

• Improve normals (data "pixels" produce lighting artefacts)

• Make live edition work

• Mesh simplification (an editor lib would be welcome)

• Infinite terrain mode

• Extras: importer for terrains made in DCCs (Blender/3DS etc)