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After Effects CC2015, keying out greenscreen (Need help fast, sadly it's a school project)

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Lar Nikolaj Leskovar
After Effects CC2015, keying out greenscreen (Need help fast, sadly it's a school project)
on May 31, 2016 at 5:55:02 pm
Last Edited By Lar Nikolaj Leskovar on May 31, 2016 at 6:05:57 pm

Hello,

Today I recieved a footage from some simple stop-motion animation. It is on green screen and I have to key it out. But it's quite tricky.. I just can't get it to work, and I have to finish it today... Here is a screenshot of the footage




and another one:




I would really appreciate any help, it's a school project and my schoolmates appereantly didn't think this one through. Sorry for any grammar mistakes since English is not my primary language.


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Oki Pienandoro
Re: After Effects CC2015, keying out greenscreen
on May 31, 2016 at 6:28:45 pm

Have you tried using rotobrush instead ?
I tested it, and i don't think it was too time consuming process since the edge is really crisp.
I can see why this is difficult to key-out.

------------------------------------------
Sorry for the english, not native speaker.


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Lar Nikolaj Leskovar
Re: After Effects CC2015, keying out greenscreen
on May 31, 2016 at 6:51:12 pm

Thank you for your answer. So I would have to rotobrush every frame by itself? Never used roto brush before but I kinda get its concept, so I'm sorry if it sounds like a stupid question.


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Oki Pienandoro
Re: After Effects CC2015, keying out greenscreen
on May 31, 2016 at 7:06:28 pm
Last Edited By Oki Pienandoro on May 31, 2016 at 7:12:44 pm

Nah, not stupid,
Rotobrush was rarely ever used under normal workflow, i guess people only use if keying is too problematic.

You didn't have to roto every frame, rotobrush can propagate frame forward & backward.
The problem is, is often missed, so you have to fix certain frames (use alt+click to delete wrong area).
In practice, it's kinda reviewing every frame. But at the very least you didn't have to manually roto every single edge.

Btw, how many frame you dealing with?
Because i have an idea, and i tested it. Instead keying in AE, why don't you use magic wand in Photoshop.
It really looks great (kinda, you probably need a 2nd or 3rd pass).
Use action to automate the process. Then batch processing.
Load the result as image sequence.

------------------------------------------
Sorry for the english, not native speaker.


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Jon Doughtie
Re: After Effects CC2015, keying out greenscreen
on Jun 2, 2016 at 2:47:48 pm

What problems are you having with Keylight? That looks like it would key pretty well.

If you have a few bad spots, you can have more than one copy of Keylight on the clip.

System:
Dell Precision T7600 (x2)
Win 7 64-bit
32GB RAM
Adobe CC 2014 (as of 7/2015)
256GB SSD system drive
4 internal media drives RAID 5
Typically cutting short form from HD MP4 and P2 MXF.


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Jon Doughtie
Re: After Effects CC2015, keying out greenscreen
on Jun 2, 2016 at 2:49:04 pm

Even though some of the character content is green, it is a darker shade. I would think you could tighten the adjustments enough to manage that.

System:
Dell Precision T7600 (x2)
Win 7 64-bit
32GB RAM
Adobe CC 2014 (as of 7/2015)
256GB SSD system drive
4 internal media drives RAID 5
Typically cutting short form from HD MP4 and P2 MXF.


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