terrain3d

Terrain3D is a high-performance, editable terrain system for Godot 4, implemented as a C++ GDExtension addon compatible with official Godot builds. It can be accessed from GDScript, C#, and any language Godot supports. The system handles terrains from 64x64 meters up to 65.5x65.5 kilometers (4295 km²) in non-contiguous, variable-sized regions. It supports up to 32 textures and 10 levels of detail for the terrain mesh. Foliage instancing includes up to 10 LOD levels and a shadow impostor. Editing features include sculpting, holes, texture painting, texture detiling, and painting colors and wetness. Heightmaps can be imported from HTerrain, Gaea, World Creator, World Machine, Unity, Unreal, and any tool that exports heightmaps. The project is MIT licensed and developed by Cory Petkovsek (Tokisan Games) and Roope Palmroos (Outobugi Games) with community contributions. Documentation, tutorials, and support are available via the official docs site and Discord.