Should animation impersonate life or film?
3D packages often have Lens-Flair effects. You don’t see this. The visual effect is retina-burn. Look at a light (nothing to bright – and not for to long. Try a torch or flashlight) and you will see a coloured splodge over it. This splodge will stay in that area of your view for a few seconds. I have never seen this as an option on 3D packages.
Nor do you really see blurring. Focal length is also an effect only of cameras. The eye’s equivalent of this is double vision. Pre-photography artists used fogging as a method of showing depth - things look successively greyer (or blue-greyer) as they get farther away from the viewer.
We refer to 3D realism as photo-realism and that it is. But less realistic animation styles still use these photographic effects.
Mike Futcher - www.yogyog.org