I almost forgot this option:

Acorn gave me a simple script that creates a simple fade from slide to slide www.eyetricks-3d-stereograms.com The script can be altered.

The images are simply stacked, one atop the other on the page and display in the order they are stacked.

Each photo has the same name: htmlclass="photo"

And this script goes in the Page > Head window

<script src="https://cdnjs.cloudflare.com/ajax/libs/animejs/3.2.1/anime.min.js" integrity="sha512-z4OUqw38qNLpn1libAN9BsoDx6nbNFio5lA6CuTp9NlK83b89h gyCVq+N5FdBJptINztxn1Z3SaKSKUS5UP60Q==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

<!-- Global site tag (gtag.js) - Google Ads: 1069362885 -->
<script async src="https://www.googletagmanager.com/gtag/js?id=AW-1069362885"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());

gtag('config', 'AW-1069362885');
</script>