The Cap Holes modifier builds faces in the holes in a mesh object. A hole is defined as a loop of edges, each of which has only one face. For example, one or more missing faces from a sphere would produce one or more holes. The modifier works best for filling planar holes, but can do a reasonable job with non-planar holes as well.
Note: This modifier can cap holes in a sub-object selection passed up the stack. It caps any part of the hole that's adjacent to, or within the selected geometry, whether vertex, edge, or face.
Tips
- If the Cap Holes modifier doesn't appear to work, remove it, apply a Mesh Select modifier to select the faces surrounding the hole, then apply Cap Holes to the sub-object selection.
- The Cap Holes modifier creates faces with invisible edges unless you turn on All New Edges Visible before you apply it.
Example: Cap a hole in a sphere:
- Create a sphere.
- Apply an Edit Mesh modifier to the sphere.
- Use the modifier stack to access the Face sub-object level.
- Select several contiguous faces and delete them.
- Go to the Object level of the stack.
- Apply a Cap Holes modifier.
The hole you created are filled.
Tip: Turning on Smooth With Old Faces makes the cap less obvious.