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Super slow mo effect: AE

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Ceri Allen
Super slow mo effect: AE
on Aug 15, 2011 at 4:04:25 pm


I will be creating super slow-mo effect from footage shot at 60fps on a canon 5D.
It will be of a BMX rider.
First I will conform it in cinema tools to 24p.
However following this there seems to be 5 possible ways of further slowing the footage:

1. MOTION: Motion blur blending
2. MOTION: Optical flow
3. After Effects: Timewarp
4. After Effects: Time Remapping
5. After Effects: Twixtor

I will do tests when I received the footage but as the deadline is tight I am trying to do as much prep before hand as possible. What are the general thoughts on the best method to use? Ideally I would avoid twixtor due to cost.



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Stefan Hinze
Re: Super slow mo effect: AE
on Aug 15, 2011 at 6:06:35 pm


try your number 3 and 4!
the result depends on the footage!
try the different "frame blending" methods and look at them.

just to say: i donĀ“t have any experiens with twixtor
maybe someone could help on that ?!


(take a step back, to see the bigger picture)

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Walter Soyka
Re: Super slow mo effect: AE
on Aug 15, 2011 at 6:49:32 pm

Motion's Optical Flow, AE's Timewarp [link] (based on The Foundry's KRONOS), AE's Time Remapping [link] (with Pixel Motion on), and RE:Vision FX's Twixtor all use similar motion estimation techniques for retiming footage. I think they'd all yield comparable results with their default settings.

Between Timewarp and Time Remapping, Timewarp offers a lot more control over the motion estimation parameters, and it allows you to separately track the foreground from the background if you can pull a key or rotoscope to create a matte. Twixtor Pro offers some features that Twixtor doesn't, like separate tracking of the foreground and background via a matte, and manual point and spline guidance.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
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