The Kid Stays in the Picture

[Death_or_glory]

I won’t go into the physics of parallax here, but this is the basic way to do this effect. The trick is to inroduce parallax where none exists.
The best way to do this is to separate your foreground element (or elements) from the background, and paint in the background ‘behind’ the FG element. (If you have the opportunity to shoot the things you’ll be doing this with, simply shoot a clean plate of your BG)
When you set up your comp, place the elements in z space and scale the BG and FG to visually match the original (use snapshot feat. if precision is involved)
Camera trans reveals the gag. Most effective with more than 2 depth levels, ie. FG, Mid, and BG.
Good luck!

[Reloaded]

Do you have a link so we can see the effect?

[Death_or_glory]

This is something I did awhile back as a quick test:
https://chrisconn.net/parallax/baseball1.mov

Its basically a quick way to bring stills to life. In this case, a Maya-generated baseball was added.
For another good example, look at:
https://media2.mk12.com/mk12_version_five.html

under work for hire/2004: Cartoon Network: ASB

[Chris Smith]

Search the archives for “kid stays picture”. This has been discussed many, many times in the last few years since the films been out. There is a wealth of knowledge waiting for you in the “Search Posts” option to the left <-- Chris Smith https://www.sugarfilmproduction.com

[Reloaded]

Hi, there is a video tutorial about this kind of comp, maybe it’s worth taking a look. Here is the link https://forums.creativecow.net/cgi-bin/new_page_wrapper.cgi?forumid=2&page=https://www.creativecow.net/articles/kramer_andrew/3dcompositing/index.html

I hope it helps.