I'm just getting started with Final Cut Pro X and I'm following this video for a slide out animation:

I have a background square for my text as the Text moves to the right. If I set the opacity to 80%, the background looks how I want when there is no animation. Once the transition is animating though, the background is opaque and not transparent. Is there a way to get around this?


  • What did you use for the background square? Commented Jan 14, 2020 at 23:03

1 Answer 1


I think I know what’s the problem is.

The compound clip isn’t working that way because you have probably a “Solids” generator in it.

Ignore the step of generating the compound clip and build the sliding box and text on top of the main timeline. That should work as you want.

  • Yes I used a blank solids behind the text so I wouldn't just have floating text. I'd like to use it as a compound clip bc then I can reuse it in other projects but just change the text. Is that not possible? Thanks!
    – Crystal
    Commented Jan 16, 2020 at 3:20
  • The way the tutorial is doing it I don’t think it will work. The time and effort is better spend elsewhere. It’s such a quick build that it shouldn’t be too time consuming to make another when you need it. If you need a copy in another project you could make a copy of all layers. Commented Jan 16, 2020 at 10:28

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