Boolean intersection
Keep the overlapping volume of selected meshes with Boolean Intersection.
Before you start
Select overlapping editable meshes in Object Mode, with active modifiers applied. Intersection keeps only space shared by the operands.
Use the operation
Extract the common volume of two or more shapes.
- Position the objects so their shared region has the shape you want to retain.
- Select the operands, open Boolean in the modeling sidebar, and choose Intersect.
- Inspect the remaining volume. Undo and reposition the inputs if the result is empty or much smaller than intended.
Controls and choices
| Controls | What changes |
|---|---|
| Shared region | With several operands, a region must belong to all of them to remain. Adding another object can reduce the result further. |
| Input spacing | Objects that only touch may have no shared volume. Use a visible overlap for the first attempt. |
| Result material | The result derives its material from the first operand. Review material and surface orientation after the operation. |
Try it in your scene
Overlap two closed meshes, apply Intersection, and compare the result with their original overlap.
Check the result
The retained shape should match the overlap, with no unintended fragments. Inspect thin tips and new corners before applying further operations.
Practice in Show3D
Open the editor and follow the steps with your own scene.