Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Apple Final Cut Pro Shape Mask changing size after export

  • Shape Mask changing size after export

    Posted by Ben Chastney on August 3, 2015 at 2:41 pm

    Saw one other post on this with no resolution. Here are the details.

    We do sports videos. We use an inverted circular “Shape Mask” on a black color generator to make a circular highlight appear around an athlete we’d like to designate. FCPX added that great updated “Shape Mask” filter that we can easily re-size to fit around the athlete on each clip.

    The issue we’ve started to encounter is although the “Spot-shadows” as we call them are properly sized in FCPX after we send to compressor the size of the spot-shadow changes on the compressed version. See these images:


    Project settings:

    Any ideas? Please help, thank you!

    Ben

    Winston Edgoose replied 9 years, 8 months ago 8 Members · 10 Replies
  • 10 Replies
  • Mark Suszko

    August 3, 2015 at 4:02 pm

    At a guess, the filter/effect you generated was built with a different frame size than the footage it is being applied to. But that’s just a guess. Does this come up if you pre-render the timeline before sharing to Compressor? What I’m getting at is that I don’t think the problem is actually *in* compressor, but rather, in some step FCPX is doing in the pre-render.

  • Jeremy Garchow

    August 3, 2015 at 4:16 pm

    If you compound that clip before sending to compressor, does that help?

  • Ben Chastney

    August 3, 2015 at 6:04 pm

    [Mark Suszko] “I’m getting at is that I don’t think the problem is actually *in* compressor, but rather, in some step FCPX is doing in the pre-render.”

    See the first image below everything rendered, looks correct, but then….

    [Jeremy Garchow] “If you compound that clip before sending to compressor, does that help?”

    … upon compounding the clip the error is duplicated in the FCPX timeline. See the images below.

    Any clues here?


  • Jeremy Garchow

    August 3, 2015 at 6:33 pm

    Sure, first compound the clip, then add the mask to the compound.

  • Ben Chastney

    August 3, 2015 at 6:34 pm

    Sounds delightfully easy! We’ll implement

  • Tony Hoffman

    September 29, 2015 at 2:18 pm

    I am having the same problem. I tried putting the mask into a compound clip but the problem remains. Has anyone found a solution to this?

  • Bryan Jackson

    October 14, 2015 at 8:18 pm

    I’m having the exact same issue. Video looks great in the final project edit, but when I export the Mask is moving. It’s incredibly annoying – Would love to understand what we’re doing wrong.

  • Anthony Donovan

    June 13, 2016 at 3:01 am

    I’ve had the exact same issue, and I’ve yet to find a solution for it. Ben, have you figured this one out?

  • James Cude

    June 15, 2016 at 10:17 pm

    Try converting the mask to points, as described in this post by Charlie Austin: https://fcpxpert.net/2015/04/13/fcp-x-10-2-first-look/

  • Winston Edgoose

    August 24, 2016 at 9:54 am

    The convert to points worked for me!

    Thanks for the tip you saved me from some frustration!

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