TerraBrush

TerraBrush is a minimal terrain heightmap editor built as a GDExtension for the Godot Engine 4.5. It provides an integrated toolset for creating and editing 3D terrains directly within the Godot editor, enabling developers to sculpt landscapes, paint textures, and populate environments with foliage and objects efficiently.

Key Features

• Terrain Sculpting — Modify heightmaps with tools to increase, decrease, smooth, flatten, set height, and set angle.
• Texture & Color Painting — Paint albedo, normal, and roughness textures onto the terrain with support for heightmap-based blending.
• Foliage & Object Scattering — Populate terrain with grass, trees, and other packed scenes that follow the landscape and support random placement.
• Environmental Effects — Add dynamic water with flow painting and customizable snow layers with configurable textures and shaders.
• Performance Optimizations — Implements Level of Detail (LOD) via a custom clipmap mesh and MultiZones for handling large terrains in chunks.
• In-Game & Web Export — Includes an experimental TerraBrushEditor node for runtime terrain editing and supports Web Export projects.
• Flexible Workflow — Features a pie menu, customizable shortcuts, terrain locking, meta info layers, and import/export capabilities.

Philosophy

TerraBrush prioritizes simplicity and performance, offering a focused set of terrain editing tools that integrate seamlessly into the Godot workflow while remaining extensible through custom shaders and resources.