How to reproduce the effect algorithm in the "Youscope" demo on an oscilloscope?

Question

Algorithms

Recently ran this demo on Habré .
It has the effect of “breaking into drops” and “washing” the image, I can’t understand what kind of algorithm, it looks like some kind of special blur and also looks like a meltdown effect (it was used in DOOM when changing screensavers).
Does anyone know the name of this effect? Is there an even better algorithm? Painfully beautiful.
And, unfortunately, it didn’t work out in a hurry :(

Answer 1

I'm not a programmer, but:
1. There is an array of points (x, y) of the picture.
2. Randomly choose a point.
3. Move it down with a certain acceleration (it's easy).
4. We extinguish it and remove it from the array.
5. Repeat several times until the desired effect is obtained.

Answer 2

There, if you look closely, you can see that the points begin to fall almost immediately after drawing. Plus, each point has a slightly different acceleration.

Answer 3

Here is a link to html + js ( canvas ) where the (without fading) effect that I sketched is implemented - not very similar, but you can play around.