Editing Guide

Digger offers a variety of tools to shape your terrain. All editing tools are located in the Edit tab of the Digger Master inspector.

Tools and Actions

Dig

Removes matter from the terrain to create caves, tunnels, or entrances.

Add (Raise Overhangs)

Adds matter to the terrain. Useful for creating overhangs, covering holes, or building organic structures.

Reset

Restores the terrain to its original heightmap state in the brush area.

Note: This does not restore terrain details (grass/trees) that were removed by Digger.

Paint

Paints textures on the Digger meshes (caves/overhangs). Digger uses the same texture layers as your terrain. Select the texture you want to paint from the list.

Note for MicroSplat users: If you use MicroSplat, the Paint tool allows you to paint Wetness, Puddles, and Streams (if enabled in your MicroSplat config).

Paint Holes

Used to manually cut holes in the terrain surface without generating cave geometry. Digger usually handles holes automatically when you Dig, but this gives you manual control.

Smooth

Smooths the terrain surface, softening sharp edges and creating more natural-looking transitions.

Note: Smooth only works with the Sphere brush.

Sharpen (Beta)

Sharpens terrain edges, creating more defined features. This is a beta feature.

Note: Sharpen only works with the Sphere brush.

Brushes

Sphere

Standard spherical brush. Creates smooth, organic shapes.

Best for:

• Tunnels and cave passages
• Organic, natural-looking holes
• Smoothing operations

HalfSphere

A dome-shaped brush (half of a sphere).

Best for:

• Cave entrances
• Alcoves and niches
• Domed ceilings

RoundedCube

A cube with rounded edges.

Best for:

• Rectangular rooms with soft corners
• Mine shafts
• Architectural spaces that need defined walls but soft edges

Stalagmite

Special brush to create pointed stalagmites or stalactites.

Best for:

• Cave decorations
• Pointed rock formations
• Use negative opacity or hold Shift to create stalactites (pointing down)

Custom

Use any mesh as a brush shape. See Custom Brushes below.

Best for:

• Stamping specific shapes
• Architectural details
• Repeatable patterns

Brush Properties

• Brush Size: The radius or extent of the brush.
• Opacity: The strength/speed of the modification.
• Depth: Adjusts the position of the brush relative to the terrain surface. Negative values push the brush underground.
• Auto-remove terrain details: When enabled, grass and trees are automatically removed as you dig. This operation is irreversible.

Custom Brushes

Custom brushes allow you to use any 3D mesh as a brush shape.

Creating a Custom Brush

1. Create or import a mesh into your project.
2. Add the mesh to your scene (it doesn’t need to be near the terrain).
3. Add the Custom Brush component to the mesh GameObject:
   • Select the mesh object
   • Click Add Component > Digger > Custom Brush
4. The mesh will be converted to voxels automatically.

Using a Custom Brush

1. In Digger Master, set Brush to Custom.
2. Assign your Custom Brush object to the Custom Brush field.
3. Click on the terrain to stamp the shape.

Custom Brush Settings

Setting	Description
Auto Refresh	When enabled, the brush updates automatically when you modify the mesh’s transform (rotation/scale).

Tips for Custom Brushes

• Scale: Adjust the mesh’s scale to change the brush size independently of the Brush Size setting.
• Rotation: Rotate the mesh to change the orientation of the stamp.
• Closed meshes: For best results, use closed (watertight) meshes.
• Complexity: Simpler meshes work better. Very complex meshes may produce unexpected results.

// Example: Using custom brush at runtime
var parameters = new ModificationParameters
{
    Position = hit.point,
    Brush = BrushType.Custom,
    CustomBrush = myCustomBrushComponent, // Reference to CustomBrush component
    Action = ActionType.Dig,
    TextureIndex = 0,
    Opacity = 0.5f,
    Size = 2f
};
digger.ModifyAsyncBuffured(parameters);

Shortcuts

If shortcuts are enabled in the Settings tab:

Key	Action
B	Change Brush type
N	Change Action
Keypad +	Increase Brush Size
Keypad -	Decrease Brush Size
*Keypad **	Increase Opacity
Keypad /	Decrease Opacity
Shift + Click	Invert action (e.g., Add instead of Dig)