Premiere help: Transparency + motion over another layer of video

Discussion in 'Amateur Video Production' started by Jibboo, Jun 21, 2005.

  1. Jibboo

    Jibboo Guest

    Here's what I am trying to do:
    Take a .PSD image with green surrounding the subject of the image, and
    have it move up across another layer of video. I did it once in a
    proof-of-concept test with the same image and same video and it worked.

    Now, when I try to do it in my real video, the background video only
    shows through where the green screen expands to. Problem is, when I
    extend the green area, I have to use the "zoom" property of the Motion
    feature, which causes the photo to look really blurry.
    What am I doing wrong?!?
    Here is my Motion control panel without setting the Transparency:
    http://img137.echo.cx/img137/8757/bad3pa.jpg
    Here is my Motion control panel with Transparency using Green Screen:
    http://img137.echo.cx/img137/281/bad27ej.jpg
    You can see in both that the background image (sunrise) isn't coming
    through beyond the edge of the moving photo. How do I fix that?
    I got this to work right once... what is wrong here?
    Thanks!!
    Adam
     
    Jibboo, Jun 21, 2005
    #1
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  2. In the motion dialog use the "fill" option and choose a matching green.
     
    Digital Video Solutions, Jun 21, 2005
    #2
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  3. Jibboo

    PTravel Guest

    Digital Video Solutions gave you one . . uh . . . digital video solution. ;)

    Here's another. Use a garbage matte to exclude the non-green portions of
    your image. The garbage matte can be key-framed, just like the motion of
    the image, so you can track the image as it moves (process is called "track
    matting" for this reason). You'll find this woks very well.
     
    PTravel, Jun 21, 2005
    #3
  4. Jibboo

    Adam Guest

    Let me see if I got your suggestion right:
    I should add another video layer, make it green, and give it the same
    motion settings?
    Is it possible to have 2 moving transparent layers at once?
    Thanks for bearing with me...
     
    Adam, Jun 22, 2005
    #4
  5. Within the Motion dialog is a "fill". Select the green that matches.
     
    Digital Video Solutions, Jun 22, 2005
    #5
  6. Jibboo

    PTRAVEL Guest

    No. Instead of my explaining it again, why not go over to
    www.wrigleyvideo.com and take a look at the tutorial on track mattes. The
    idea is to mask off that portion of your image which isn't green so you
    don't have to enlarge it.
     
    PTRAVEL, Jun 22, 2005
    #6
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