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Participant
June 25, 2021
Question

Ultra Key removes my hair - What do I do??

  • June 25, 2021
  • 1 reply
  • 753 views

Hello all!

I have a very urgent project. It's going well, but when I checked out my render, it turns out that my hair reflected a bit of the blue screen behind me, and got keyed out along with the background!!

I tried adjusting the options, but either a big dark shadow behind me remains, or my hair is very visibly flickering in the rendered result.

What can I do?? I included a photo below, left is render and right is without any key:

Thank you all for your help!

This topic has been closed for replies.

1 reply

Richard van den Boogaard
Community Expert
Richard van den BoogaardCommunity Expert
Community Expert
June 25, 2021

Usually, it's best practice to make sure that the blue or green screen is evenly lit and no shadows appear on it. Also, light the background separately from the subject in front of it, preferably letting the light direction match whatever the direction of light will be in the clip you're using the key for.

 

A bad key recorded is difficult to fix, especially if the footage was shot in a 4:2:0 codec. My first hunch is that you have to play with the choke feature of Ultra Key, although you may need to work on this with a combination of creating a garbage matte first for the lighter blue areas and then apply the effect to darker shades of blue immediately surrounding the subject.

 

Here are more tips for you: https://www.youtube.com/watch?v=SNNZ-ZG_j4M

 

Hope this helps.

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