how to avoid building blocks onto cell fracture?

Question

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..

If you mean that you'd like to make sphere continue being sphere after fractured then try applying scale via Ctrl+A menu. See http://blender.stackexchange.com/questions/7298/why-is-it-important-to-apply-transformation — Mr Zak, Mar 06 '16 at 20:03
it didn't solve the problem.. but I found out why this was happening: normals! The affects the 'breaking side' ;) — Francesco Yoshi Gobbo, Mar 07 '16 at 07:13
It solved problem for me. Applying scale (which in case of this sphere is negative) flipped normals and set scale to 1. After recalculating them I got correct fractures. This allowed normals of sphere to be pointing correctly (outside). — Mr Zak, Mar 07 '16 at 09:44
You are illuminating me..! I missed the negative scale! After all.. they are synonymous I suppose :) — Francesco Yoshi Gobbo, Mar 07 '16 at 10:16
I'd say the scale > normals > fractures are cause and consequence. — Mr Zak, Mar 07 '16 at 10:55

score 3 · Accepted Answer · answered Mar 07 '16 at 07:12

3

Normals influence the breaking side.

Flipping normals to the inside SHIFTCTRLN solves the problem!

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

answered Mar 07 '16 at 07:12

1 Answers1