Resolume layers each play one clip and composite together into the output

In Resolume, the clip grid is organized into horizontal layers. Each layer plays only one clip at a time — triggering a second clip on the same layer replaces the first at the next bar. Clips on different layers play simultaneously and are mixed (composited) into a single output image, higher layers over lower ones. This layer stack is the core VJ mental model: build a look by stacking a background clip on one layer and an overlay on another, rather than by switching a single source.

Examples

Play a clip on layer 1, then click a clip on layer 2 — layer 1 keeps playing and layer 2 is mixed on top. Click a second clip on layer 1 — it replaces the first at the next bar.

Assessment

You have a background loop on layer 1. How do you add a moving overlay on top without stopping the background? What happens if you click a different clip on layer 1 instead?