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  1. Singular Basics
  2. Building overlays in Composer

How to set up layer logic to automate overlay transitions

PreviousHow to build a compositionNextHow to set up control nodes to make widget properties available to a control app

Last updated 2 years ago

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Layer logic allows for smooth on-air transitions between overlays that have been assigned to the same layer type.

To show how this works, let's look at an example. Say you're creating overlays for a talk show where the hosts will talk about a variety of subjects. You create a playlist of overlays for the subjects and assign them to the same logic layer. Then every time you send one of these overlays on air, the previous one animates out before the new one animates in.

In this guide, you'll learn how to set up layer logic.

To follow along, you'll need a composition. If you don't have one, first learn or .

How to set up layer logic

  1. Open a composition in Composer and open the composition navigator.

  2. In the composition navigator's Logic Layer column, open the drop-down for an overlay.

  3. Select the layer of your choice or create a new logic layer by entering a new name in the new layer field.

  4. Repeat for any additional layers.

If you build a composition where one layer spills into an area where another layer sits, they will overlap if they're onscreen at the same time. Thus, be mindful of the space that your layers occupy when you're creating and controlling overlays.

how to build a composition
extract a composition from a Singular template
Opening the composition navigator
Adding layer logic