Slideshow

A folder's pictures, one after another.

Setting	Kind	Starts at	Range and notes
Picture`source`	image file	none	Every picture in its folder plays, this one first
Or a folder`folder`	words	none	Inside the scene's folder, or a full path
Each picture for`interval`	number	12 s	2 to 600 s
Change`transition`	choice	Pan and zoom	Pan and zoom, Fade, Slide, Zoom through
Change takes`duration`	number	1.6 s	0.2 to 5 s
Pan and zoom by`zoom`	number	12%	0% to 40%
Fit`fit`	choice	Fill	Fill, Whole
Shuffle`shuffle`	on or off	off	–

From a script

Every setting above can be changed by the scene's logic, by its key. Say the layer is called Slideshow:

scene.set("Slideshow", "interval", 600);scene.animate("Slideshow", "opacity", 0.5, 2);

import { scene } from "motion";scene.set("Slideshow", "interval", 600);scene.animate("Slideshow", "opacity", 0.5, 2);

What every layer has

Besides its own settings, every layer has its opacity, blend, placement, quick effects and an effects stack. They're listed once, on the layers page.