The Loopback layer allows existing layers to be duplicated and displayed in different locations on the canvas. This feature is particularly useful for layers that do not inherently synchronise their inputs.
Useful for
Videos:
WebViews
PDFs:
Not useful for
Images
Capture Cards (Datapath / Blackmagic)
NDI
Spout
Practical Applications
Presentation Aid: Duplicate a PowerPoint presentation running in a WebView to another region of the canvas as a reference for the presenter
Tiling Videos: Play the same video in sync across different regions
Educational Environments: Ensures that all students have a clear view of the content, beneficial in large classrooms where visibility might be obstructed.