one million particles rendered with the gpgpu technique using three.js and webgl.
view experiment ↗︎ · watch explaination video ↗︎
you can't simply open the html file because the three.js things won't work for security reasons—as they say.
so you need to open it in a local server. you can use http-server, serve, or alike.
one example if you have npm:
npx serve .