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?


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This is the cell fracture window:

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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.

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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:

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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 '16 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 '16 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 '16 at 20:47
  • $\begingroup$ I mean the panel that pops up just after pressing the Cell fracture button. $\endgroup$ – Carlo Jul 15 '16 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 '16 at 0:17

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