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I'm trying to fracture two objects and ultimately smash them together. However, the green hand (first object I am trying to fracture) turns into a fractured cube when I use cell fracture on it. I converted it from a curve to mesh. Is this an easy fix?

Thanks!

enter image description here

This is the cell fracture window:

enter image description here

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The mesh is not watertight (manifold)

Cell fracture is having some problem with your mesh because it cannot easily recognize an enclosed volume to work with. As you can see in the image sequence below there are some vertices that, despite looking apparently connected, they are not.

The meshes created by converting an extruded curve are currently made this way.

enter image description here

The solution in this specific case would be to run thr Remove doubles command form the Vertices sub-menu (Crtl+V while in edit mode with all the vertices selected).


Here's a comparison between reults after and before merging the overlapping vertices:

enter image description here

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  • $\begingroup$ Hey thanks! Unfortunately though it still causes weird problems when I use cell fracture after. I've added a screenshot in my question. $\endgroup$
    – lakerice
    Jul 15, 2016 at 20:31
  • $\begingroup$ There should also be something in the operator's settings, because the shown example was done with your hand after just removing the 592 doubles. Could you show them? $\endgroup$
    – Carlo
    Jul 15, 2016 at 20:36
  • $\begingroup$ Sorry how do I find operator settings? I tried to google it but couldn't find anything $\endgroup$
    – lakerice
    Jul 15, 2016 at 20:47
  • $\begingroup$ I mean the panel that pops up just after pressing the Cell fracture button. $\endgroup$
    – Carlo
    Jul 15, 2016 at 21:10
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    $\begingroup$ Thanks finally got it to work! Also, remesh can help when fill gives an error for anyone who has a hard time sealing all faces. $\endgroup$
    – lakerice
    Jul 21, 2016 at 0:17

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