Hey,

so i played a little around with your repo, thanks for sharing these effects!
I tried implementing my own object and split it up with the voronoi fracture in cinema 4d.
When loading that object (f.e. using your codebase in icosahedron.js) all children of my main Object3D seem to be meshes. In your model, there is a mix of meshes and groups with meshes. You seem to ignore the top level meshes and only paint the grouped ones.

Could you elaborate on that? How am i supposed to render my custom object using that techique? What are that groups of two meshes and how did you create your object like that?