What a 3D mockup shows that a flat design can’t
A flat design shows every panel side by side. On the package the front meets a side at a fold, a label wraps round a curve, a bag stands under its handles, so a logo can land on an edge or a line of words can turn out of sight.
A 3D mockup answers what the flat file leaves open: whether each part carries the right piece of the design, how the colors run round the corners and curves, and how the package reads from the three quarter view a shopper sees first.







