Or use a JSON library. The input string would change to:
local str = "{1, 'test', none, 10, '', , 'hi, this is a default bio. change it (asap)!'}"

And the output from JSON would be a table that you can traverse like an array.

Hmm, correct me if i am understanding this wrong. But the volume image is a voxel like 3D texture accelerated by GPU?

Hi, does somebody understand what the layers parameter for function newVolumeImage is? And if this can be constructed from a single image exported as slices from MagicaVoxel?