Digger – Terrain Caves and Overhangs

Games are increasingly incorporating overhangs and caves into their environments for heightened realism and diversity. Digger streamlines this process, eliminating the need for external tools, saving time, and reducing complexity.

This innovative tool allows you to seamlessly integrate caves and overhangs into your terrain directly within the scene view, all with a few simple clicks.

Digger is designed to give the impression of a voxel terrain without the associated drawbacks. It smartly maintains the reliable Unity terrain system, generating seamless cave and overhang meshes precisely where required. Under the hood, Digger employs voxels and Marching Cubes to construct meshes. Rather than entirely replacing the existing terrain with a voxel terrain, it blends the two, offering the best of both terrains.

With this tool, you will be able to:

- Dig in your Unity terrain just like if it was a smooth voxel terrain.
- Create overhangs (the opposite of digging).
- Apply different textures on the overhangs, in the caves, etc.

Key features:

- Easy to setup and easy to use
- Dig/add mater on terrain
- Configurable Voxel Generation System
- Auto-Remove Floating Voxels
- Control Voxel Destructibility
- Paint textures on cave meshes
- Paint/unpaint holes on cave meshes so you can integrate your own underground meshes
- Automatic LOD groups creation
- Support lightmapping (not with MicroSplat integration)
- Multi-terrains support
- Full NavMesh support
- Use your own mesh as a custom brush
- Compatible with any Unity terrain, whether it was made by hand, with Gaia, MapMagic, TerrainComposer or any other tool
- Create blocky or lowpoly style terrains with PolyTerrain (fully integrated with Digger)

Shaders:

- Bonus: adds advanced triplanar mapping to built-in terrain shaders.
- Standard terrain shader.
- URP 17 terrain shader.
- HDRP 17 terrain shader.
- MicroSplat (requires MicroSplat Digger module).

Other features:

- Full undo/redo support in editor
- Lets you set higher resolution for Digger generated meshes
- 'Sync & Refresh' button to recompute everything (useful if terrain textures or terrain heights changed)
- 'Clear' button to remove all modifications made with the tool
- Remove grass and details automatically
- Persists modifications on the fly