Generate spatial animation on the client-side; decide on container for animation if download available.

[bryce-carson]

The use of the MP4 format is misguided... the creation of an animation should be achieved using a client-side JavaScript animation framework to give the user full control.

Opining and wondering aloud

The container format should be an open format, like OGG if we are offering a download. Not all users will have access to an MP4 decoder. 🤷🏼 A more portable decision is to decide that the user should convert a slideshow played at some rate to a video on their own. Our job isn't to do their entire job for them, especially when it comes to supplementary materials; eventually someone will have an issue and want the raw data anyways, so we should just give them the raw data (the PNGs) and wash our hands of the issue.

[bryce-carson]

In the commentary of #7 I discuss using Splide.

[bryce-carson]

The Theora encoder with an OGG container seems like a good choice, but WEBM is more commonly known.

[bryce-carson]

Splide JavaScript library, taken directly from the 4.1.3 release page on GitHub

splide-4.1.3.tar.gz
splide-4.1.3.zip