Three.explodemodifier Hacking

I'm using the ExplodeModifier to duplicate the vertices so I can have individual control over Face3 objects. For my specific example, this alone looks visually poor, so I decided t

Solution 1:

As pointed out by @mrdoob I was assigning a THREE.Vector3 and not an index to the added THREE.Face3.

var extraFace1 = new THREE.Face3().copy(face)
 extraFace1.a = geometry.faces.length * 3 - 1var extraFace2 = new THREE.Face3().copy(face)
 extraFace2.b = geometry.faces.length * 3 - 1var extraFace3 = new THREE.Face3().copy(face)
 extraFace3.c = geometry.faces.length * 3 - 1

jsfiddle updated