Grouping vs Parenting

I have a robot’s eye I’m working on, and I want the lens to be a separate object (I think) so that I can still get at the stuff behind it. I want it to move with the head, of course, so is it better to group it with the head or to parent it to the head?

Perhaps a noob question, but I’m an eternal noob.

TIA.

klaatuteela,

I would use parent. If you group the iris, moving the head will not automatically move the iris. Parenting will cause the iris to move, scale rotate etc when the head is moved, scaled rotated.

Best of Luck!

That answers my question. Thanks so much!