Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Apple Final Cut Pro Legacy Cross Dissolve issue – FCP 7

  • Cross Dissolve issue – FCP 7

    Posted by Sumeru Raut on January 16, 2014 at 2:27 pm

    Edit Specs: FCP 7/ 25FPS / PAL / ProRess 422 (LT)
    Effect added: ‘Cross Dissolve’
    Problem: Only during the Cross-Dissolve the clip slightly brightens up (both the clips are in silhouette and during the transition one can see details that are otherwise completely black in the silhouette)

    The brightening is ugly.

    How do i solve this?

    Thank you,
    Sumeru

    Todd Gillespie replied 12 years, 6 months ago 5 Members · 9 Replies
  • 9 Replies
  • Mark Suszko

    January 16, 2014 at 3:25 pm

    Are you dealing with anything using premultiplied alpha channels?

  • Karlo Gorup

    January 16, 2014 at 4:41 pm

    Have you tried rendering that effect?

  • Sumeru Raut

    January 16, 2014 at 6:07 pm

    Thanks for the reply Mark.
    I’m sorry, but not too sure what ‘premultiplied alpha channels’ mean.

  • Sumeru Raut

    January 16, 2014 at 6:09 pm

    Thanks for the reply Karlo.

    Yes, I did a full render on the effect and its still there. Its even there on the export.

  • Shane Ross

    January 17, 2014 at 10:58 pm

    What is the codec of the footage you are working with? What are the sequence settings?

    Shane
    Little Frog Post
    Read my blog, Little Frog in High Def

  • Sumeru Raut

    January 18, 2014 at 2:56 pm

    Thanks for the reply Shane.

    Below are the Sequence Settings

  • Sumeru Raut

    January 22, 2014 at 5:27 pm

    Can someone please respond..

  • Shane Ross

    January 22, 2014 at 5:38 pm

    I would if I knew the answer. Sorry.

    Shane
    Little Frog Post
    Read my blog, Little Frog in High Def

  • Todd Gillespie

    January 22, 2014 at 5:47 pm

    I’ll dive into the water…while this is not a ‘fix’, this should be a work around that has helped me a bunch of times.

    I’m not sure if you have an effect on the clips? If so, then it’s a common problem when trying to dissolve between clips with effects. If not, it might be an issue with the LT?

    In any case, what you want to do is export both clips as stand alone movie files. Then re-import those clips back into your sequence-then add the dissolve to the new clips. It shouldn’t have any issues. A better idea would be to try testing the clips with the export in a new sequence to check if you see the brightness shift. Once you know the clips and the dissolve works correctly in the new sequence, then you’ll know if it’s an issue with the dissolve or the sequence.

    Good Luck,

    Todd at UCSB
    Television Production

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