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Activity Forums Apple Final Cut Pro Legacy varying obaquity in multiple video tracks to create montage synthesis

  • varying obaquity in multiple video tracks to create montage synthesis

    Posted by Arthur Luhn on March 11, 2007 at 8:01 pm

    On a sequence, I put in 3 video tracks and inputted video on each track with varying obaquity because I want to create a montage that is a synthesis of all three shots at the same time. You can see all three shots at the same time.

    The bottom track is at full obaquity, the top two are varying obaquity, but when they kick in, they kick in at 100% obaquity, and block the bottom track.

    What am I not doing?

    Thanks in advance..

    FCP 5.1.4
    OS X 10.4.8
    G5 2.66 GhHz Dual-core Intel Xeon
    Panasonic AJ-PCD20
    HVX-200
    1 TB Lacie ext. HD

    Captain Mench replied 19 years, 2 months ago 2 Members · 1 Reply
  • 1 Reply
  • Captain Mench

    March 12, 2007 at 11:26 am

    Where did you create the opacity for them? Somewhere other than FCP?

    Easy fix:

    Bring in the video prior to any work somewhere else and drop them in the timeline. Turn on your keyframe overlay buttons (option-W) and use the pen tool or the A-tool to move the opacity of the clips THERE.

    Now —

    Somethings you should know about video/stills and opacity – this creates an alpha channel… a channel of varying degrees of white to black, where white is solid… black is seethru and different shades of gray are your opacity.

    Not all formats can carry this alpha channel – most just carry the color channels. IF you are bringing video out of somewhere and need this alpha channel to come along, you must – MUST use Animation… millions of colors + where the + is the actual alpha.

    Stills are a little easier – but know that jpeg will NOT carry the channel either… TIFF – um…. .PSD (sometimes) … some others, I think too.

    Anyway – sorry for the lecture.

    Good luck,

    CaptM

    (ps, I reserve the right to have the Alpha channel thing backwards… but I think it’s right)

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