There's a 'plugin' in Illustrator called Esko, you may use to convert your artwork to 3D view in just two or 1 click based on prepared dieline. :)
Or else, iI prefer to use Photoshop to demonstrate the view of the packaging, its. It's more precise and free to imagine.
Attached my 3D work as reference.
down vote Sorry for the late reply.
In photoshopPhotoshop you may use the "Smart Object" to provide an object where uyou can put your artwork in.
*Sorry my post is just a sample of my current work, not such spammy post, sorry for mis-understanding.
Thanks.