Compose

The Compose node assembles a finished short video from your pieces: a main clip or sequence, optional cutaway footage, an optional voiceover, and optional background music. It renders everything into one downloadable video.

Inputs and outputs

Compose has four inputs, all optional except Sequence:

• Sequence: the base track. Connect a single Image, Video or Lipsync clip straight in, or a Media Library (its clips play in order). You can also connect several nodes here: their clips play one after another in the order you connected them, just as if they went through a Sequence node.
• B-Roll: optional cutaway footage. You can connect several nodes; every image and clip they send can be used as a cutaway.
• Voiceover: optional narration audio. Connect several Voice nodes and they play one after another, in the order you connected them. A Media Library with several audio files plays them all, in its order.
• Audio: optional background music. Several connected tracks play one after another, in the order you connected them, and so do the audio files of a connected Media Library.
• Video (output): the finished, rendered video.

Compose does not have a Flow input. Each of the four inputs is automatically treated as "on" once you wire something into it, you never need to switch them on yourself.

If nothing reaches the Sequence input, the run stops and asks you to connect a source there.

Settings

• Aspect ratio: choose 9:16, 16:9, or 4:5. This also sets the output size (1080x1920, 1920x1080, or 1080x1350).
• Composition settings: opens a panel with these sections:
  • Levels: a "Keep original audio" toggle, plus volume sliders for Video, Voiceover, and Music.
  • B-Roll: how many cutaways to use (Auto, or a fixed number from 1 to 10) and how long each one plays (2 to 5 seconds). B-Roll placement is fully automatic: your composed audio is transcribed and each cutaway goes where it best matches what's said. A cutaway with no clear match is spread evenly across the video instead. There is no manual script or timing field. Cutaways play without their own sound, so the audio underneath keeps going.
  • Images: how long a still image is held on screen when it's part of your Sequence (1 to 15 seconds, default 5).
  • Transitions: off by default. Turn it on to pick a style (Crossfade, Fade, or a Slide direction) and duration. One style applies to every cut in the video. While it's on, B-Roll cutaways also fade in and out; while it's off, they cut in and out.
  • Music: fade in and fade out sliders for your background music.
  • A "Reset to defaults" button restores everything in this panel.

Tips

• One clip goes straight into Compose. A Sequence needs at least two clips, so use it only when there is something to put in order.
• Once a result exists, the Download button on the card becomes active.