On Mon, 27 Nov 2023, Fabrice L wrote:

> Hi,
> 
> It is fun fact very easy to do. You just use \startMPpage (…) \stopMPpage multiple times. Here is an example which build an animation of a particle moving according to a Brownian motion. 

A very similar option is to pass a variable to a metapost drawing. This is what I use:

https://adityam.github.io/context-blog/post/metapost-animation/

It only works when viewed in acrobat, you can just comment out the animation part and wrap it in \startTEXpage .. \stopTEXpage to get multi-page animation.

Aditya