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I have here a 3D piece of glass which I need to smash in Unity. Is there an easy way of cutting it in Blender into separate pieces? As you can see I have started cutting on one side but can't separate with both sides of the cut having faces and when Unity doesn't see a face it leaves a blank space.

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    $\begingroup$ You can try the cell fracture addon. $\endgroup$
    – p2or
    Commented Jan 30, 2016 at 17:31
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    $\begingroup$ The recent answer about Cell Fracture - blender.stackexchange.com/questions/45937/… $\endgroup$
    – Mr Zak
    Commented Jan 30, 2016 at 17:32
  • $\begingroup$ cell fracture builds around the glass but it doesn't let you export it as separate pieces so it doesn't work in Unity $\endgroup$
    – Dave Goateze
    Commented Jan 31, 2016 at 1:45
  • $\begingroup$ it makes a block around the glass but doesn't actually break it as an object at all $\endgroup$
    – Dave Goateze
    Commented Jan 31, 2016 at 2:25

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Cell Fracture AddOn: Cell Fracture AddOn. I'm pretty sure this is in Blender by default, but you may need to enable it in the User Preferences, then select the object, then bring up the Toolbar on the left of the 3D Window that you have the object selected in by pressing T, select Tools/Edit pane, then select Cell Fracture.

Or Fracture Modifier build (not an AddOn or plug-in) from Dennis Fassbaenders web site: Fracture Modifier Blender Build. Explore that site too see if it's what you need.

Or do it all manually for complete control.

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  • $\begingroup$ this doesn't break it as an object either $\endgroup$
    – Dave Goateze
    Commented Feb 5, 2016 at 1:40
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You could use the loop cut tool (CtrlR) to cut the mesh. Then you can just select the diffrent parts (works best in face-select mode) and seperate them with P.

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  • $\begingroup$ I need it to break into non uniform pieces like broken glass $\endgroup$
    – Dave Goateze
    Commented Jan 30, 2016 at 17:47
  • $\begingroup$ try the fracture addon: df-vfx.de/fracturemodifier $\endgroup$
    – schustudrai
    Commented Jan 30, 2016 at 18:16
  • $\begingroup$ any more ideas? I am splitting it into a hundred or more pieces manually at the mo there has to be a simpler way no?? HELP!!! $\endgroup$
    – Dave Goateze
    Commented Jan 31, 2016 at 20:35

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