how to avoid building blocks onto cell fracture? I'm breaking a sphere and using the cell_fracture add-on to break into pieces but when fracturing:



buiding blocks don't dissapear...

How to avoid these blocks to remain after the simulation?





EDIT:

Applying scale and rotation CTRLA don't solve the problem..
Normals influence the breaking side.

Flipping normals to the inside SHIFTCTRLN solves the problem!

(in edit-mode before launching the cell-fracture add-on)