Photoshop Extended CS5+ can create 3D objects from 2D layers, but only in the way that the layers are projected on the surface of some predefined 3D objects such as cube, bottle, soda can, hat, wine bottle, donut etc.
customize them to your needs
paulofaria saidThey rendered and composed the objects at 21000×19000 px / 300 dpi.
But they really tell us that they’ve originaly created the work with 21000 px, but they don’t say the size of the final psd. I guess it’s much smaller. That’s what got me thinking how they upload it.
Afterwards, they reduced the mock up to 3200 × 2400 px / 300 dpi. for standard version
I guess that this version is approx. 800 MB
especially the “Hide all pixels” is a good size killer
go to withdrawals and change the email address for the paypal account
Last Friday in Product Mockups category review time within an hour
Try out different “Resample Image Options” when shrinking down in Photoshop
Put the background on a separate layer so that it is replaceable and upload an update of the mockup (should be pass re-review very quickly). The customer can download it again for free and maybe he revised his review. If not, then at least other buyers do not have the same problem.