Boolean Modifier

Combine two SDF objects using boolean operations. Chisel booleans operate on distance fields, producing clean results without the topology issues of mesh booleans.

Basic Usage

  1. Select a Chisel object
  2. Add a Boolean modifier via the Modifier panel or Pie Menu
  3. Set the Target to another Chisel object
  4. Choose the Operation: Difference, Union, Intersect, or Slice
  5. Optionally adjust the Blend Radius for smooth transitions

Operations

  • Difference - Subtract the target from the active object
  • Union - Combine both shapes into one
  • Intersect - Keep only the overlapping volume
  • Slice - Difference + Intersect in one step

Parameters

Target

  • Description: Pointer to another Chisel object
  • Effect: The object used as the boolean operand

Blend Radius

  • Description: Smooth transition radius between the two shapes
  • Range: 0.0 to 2.0 (soft max 1.0)
  • Default: 0.0
  • Effect: 0 = sharp boolean, higher = smoother fillet

Blend Profile

  • Options: Sphere / Smooth / Linear
  • Default: Sphere
  • Effect: Shape of the blend fillet curve

Blend Smooth

  • Description: Edge smoothing for Linear blend profile
  • Range: 0.0 to 1.0 (soft max 0.5)
  • Default: 0.0
  • Effect: Softens the chamfer edges (only visible with Linear profile)

Solver

  • Options: Float / Exact / Manifold
  • Default: Float
  • Effect: Controls the Blender modifier solver for visualization

See Also

Table of contents