• VEGAS Pro

  Double Chroma Key -Editing both Green & Blue Screen at same time

  Posted by Shawn Jarrett on September 1, 2018 at 7:36 am

  I have a dilemma. I have footage that has both green & blue screen elements. I want to have different images showing behind each colour. Im not sure of the best way to do this?

  One way I thought I could do it -If I separately key out the Blue, revealing the image behind the blue and render that -THEN import this new clip and key out the green to reveal the image behind the green. This seemed like a good idea, until the green chroma keying also removed parts of the image that were added behind the blue screen. This also wouldnt be solved by changing the order either -keying green then blue.

  Surely there is a way this could be done? Any help appreciated.

  Thanks, Shawn

  Shawn Jarrett replied 7 years, 11 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Francois Pénzes

  September 2, 2018 at 1:55 pm

  Hi Shawn

  Can you post a screen shot with both blue & green areas ?

  Cheers !

  PC Win 10 Pro 64-bit 16gb Intel® Core™i7-2600k Quad Core 3.40GHz
  Cameras: Canon XF305 + Canon XH-A1
  Blackmagic HyperDeck Studio Mini
  Vegas Pro 14, User since Vegas 3.0

  \’\’When the cutting stops, the editing begins…\’\’
• 

  Shawn Jarrett

  September 22, 2018 at 3:38 pm

  Ok, I have figured out how to do this from trial and error. (I am using Vegas Pro).

  1. chroma key out the blue in clip, revealing the desired background behind it, select “Cut” composite mode.
  2 Render as 3mps Quicktime, prog scan, PNG format, 32bpp color.
  3 Import this file back into project. Select properties, Media, Alpha Channel, premultiplied (or Straight).
  4 ensure blue chroma key is now off & composite set to source alpha
  5 Have the clip to be green chroma keyed beneath this imported clip & the green’s desired background beneath that.
  6 Wollah! The blue & green areas of the original clip now have their own seperate image showing. 🙂

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