I’ve recently encountered several demos on various parts of the web featuring a rather interesting particle effect. The effect is what appears to be a random population of particles with unique velocities. When a particle encounters another within some proximity, a connecting line is drawn between them, attaching the two particle centers. The overall effect appears similar to a dynamic display of constellations constantly re-arranging their patterning, or strands of a spider web connecting and pulling itself apart.
A family member had asked me to describe the technology being used in one such demo backdropping a website banner. His first guess was an animated GIF or PNG of some sort. Upon further inspection, my intuition proved correct. The banner’s effect leveraged an absolutely positioned HTML canvas. One that responds to window resizing to display responsively. Using such an effect as a backdrop to the banner-in-question elevated the content to appear quite tech-savvy, leaving quite a positive impression on me.