Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Adobe After Effects Creating a ghost – no green screen.

  • Creating a ghost – no green screen.

    Posted by James Mour on April 23, 2008 at 9:19 pm

    This is my set-up:

    I have a clip of a girl walking to a corner, then kneeling down.

    Then I have a clip of a guy in the same corner, sitting, waving his hands.

    They both share the same exact background, the camera was locked. I need to make the girl (top layer) slightly invisible so that when played back – you can see the guy in the corner (real) and the girl walking through him (ghost)

    Please help me, I’ve tried a dozen or so things.

    Thank you so much.

    Thomas Leong replied 18 years, 4 months ago 3 Members · 3 Replies
  • 3 Replies
  • Richard Harrington

    April 24, 2008 at 12:25 am

    Spoken like a hawkeye =)

    If the shots are both locked down… stack them on top. Change blending modes of top shot… then lower opacity

    Richard M. Harrington, PMP

    Author: Photoshop for Video, Understanding Adobe Photoshop, and ATS:iWork

  • Richard Harrington

    April 24, 2008 at 4:53 pm

    Thought he said cameras were locked don with same exact background…

    I fully agree with your think before your shoot advice….

    Richard M. Harrington, PMP

    Author: Photoshop for Video, Understanding Adobe Photoshop, and ATS:iWork

  • Thomas Leong

    April 24, 2008 at 7:33 pm

    A re-shoot with a set for the Pepper’s Ghost effect could probably achieve what you want without any post-pro required. An explanation of the principles behind Pepper’s Ghost can be found at https://www.phantasmechanics.com/pepper.html
    and at https://www.doombuggies.com/home.php for Disney’s Haunted Mansion effect.

    The guy is in the room with the furniture, etc. The girl in the other. Needs some really critical lighting of the background in the room where the guy is, in order to get the girl looking opaque in areas where you want her to be solid. Getting her looking transparent is simple – she will look transparent wherever the background (of the guy’s room) is brightly lit.

    To get the girl to walk through the guy, use the principle of angle of reflection = angle of inflection (the distance of girl to mirror in one room = the distance of guy to mirror in the other room), and you will get the illusion of the girl walking through the guy.

    Thomas Leong

We use anonymous cookies to give you the best experience we can.
Our Privacy policy | GDPR Policy