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Bret Williams
roto options?
on Mar 11, 2016 at 4:10:36 pm

Might have to do some intense 4-5 seconds of roto. Hands pulling weeds in a mulch bed. Need to cut out the arms/hands and lose the mulch bed background. I can animate masks in AE or Motion, but is there something better? Most roto I usually do is a simple animated mask cutting out objects and such for a transition. Not fingers and hands! The footage is 4k C300 MXF.


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Mark Suszko
Re: roto options?
on Mar 11, 2016 at 5:20:12 pm

You could try using the chromakeyer in combination with the color board to key out the mulch, or, it may be easier to generate a key on the hands/flesh tone, then make an intermediate mask or "hold-out matte" from that. Still finicky, but in a different way from roto.

Something that's not always very intuitive is that you can deliberately push exposure, contrast, saturation, etc. in the color board to make a shot that looks horrible but keys really well. You can always restore the color changes later, after having extracted the hold-out matte. Also, you can invoke as many instances of the keyer and drawn mask as you need.


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Bret Williams
Re: roto options?
on Mar 11, 2016 at 7:35:08 pm

Thanks for the suggestions. All good ideas. Unfortunately tried 'em. Apparently there's a real good reason Hollywood hasn't accepted brown screen chroma keying as a standard practice. Just not enough luma or chroma to deviate from skin, clothing, shadows and so on. We are editing around the issue. Or reshoot.


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Mark Suszko
Re: roto options?
on Mar 11, 2016 at 8:26:10 pm

"Limit color" Color picker on fleshtone: tried it?


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Bret Williams
Re: roto options?
on Mar 11, 2016 at 8:32:59 pm

Yeah. Flesh tone is same as mulch tone.


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Jeremy Garchow
Re: roto options?
on Mar 11, 2016 at 9:16:00 pm

[Bret Williams] "Apparently there's a real good reason Hollywood hasn't accepted brown screen chroma keying as a standard practice. "

This was a really good laugh for me! Thanks!

Have you tried rotobrush in Ae?


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Bret Williams
Re: roto options?
on Mar 11, 2016 at 9:17:27 pm

Good idea. But we've moved on. Reshoot tomorrow.


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Eric Santiago
Re: roto options?
on Mar 12, 2016 at 6:25:02 pm

Also suggest Mocha for After Effects.


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Jeff Kirkland
Re: roto options?
on Mar 14, 2016 at 12:16:38 am

Or Slice-X/Track-X inside FCPX.

Jeff Kirkland | Video Producer | Southern Creative Media | Melbourne Australia
http://www.southerncreative.com.au | G+: http://gplus.to/jeffkirkland | Twitter: @jeffkirkland


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