Simulate Rolling Shutter Effect

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Old 08 August 2013   #1
Simulate Rolling Shutter Effect

Hello! So usually you reduce rolling shutter effect in the footage, then track it and add cgi to it.
But I've decided to make a very realistic live action CGI. Adding a rolling shutter effect to my 3d render would add that cool "hand-held camera" look and make viewer feel like it's really in the shot. So, obviously, the problem is that I don't know how to add this effect in After Effects
Any ideas?

Last edited by X-RUST : 08 August 2013 at 05:04 PM.
 
Old 08 August 2013   #2
Effect --> Time --> Time Displacement based on a simple gradient.

Mylenium
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Old 08 August 2013   #3
Originally Posted by Mylenium: Effect --> Time --> Time Displacement based on a simple gradient.

Mylenium


Tried what you suggested. Used this gradient.



And got a very jagged result. The settings I used are: Max Displacement 0,1; Time Resolution (tried a lot of values)
 
Old 08 August 2013   #4
For handheld result you can paste a tracker from
a real crap handheld footage and stabilise by that.
For rolling shutter maybe you can animate puppet
pins back and forth with high frequency. I guess there
is some expression you could use to normalise their
motion (use steady pins at the bottom and 2-3 shaking
ones at the top.).
Check the wiggle effect here for the pin animation
http://lesterbanks.com/2012/02/usin...-after-effects/
Seems this is the expression we need (sorry if i'm wrong, i'm not
good at scripting).

Last edited by kyrgr : 08 August 2013 at 07:42 PM.
 
Old 08 August 2013   #5
Thanks, it may be a solution.
 
Old 08 August 2013   #6
Glad to be useful. I think some vertical wipe
effect i see in a phone's camera is missing from
the method i suggested. Good luck.
 
Old 08 August 2013   #7
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