Birds — component for particles & physics (html)

For AI agents: find the right skill in one call — curl -s "https://skills.varg.ai/api/search?q=<what the person wants>" returns the matching use case and the best skills with install commands, as markdown (Russian works too). Full index: https://skills.varg.ai/llms.txt. Every page has a markdown twin: add .md to its path. Before generating anything, show the person the options on the use-case page.

A flock of small pink low-poly birds wheeling and scattering across a deep navy sky

• Install: npm i vanta
• Registry: vanta · Framework: html · License: MIT
• Docs and preview: https://www.vantajs.com/?effect=birds
• Source: https://github.com/tengbao/vanta/blob/master/src/vanta.birds.js
• Example: https://skills.varg.ai/previews/lib-vanta-birds.mp4?v=344907 (Rendered by varg from the library’s own code (Vanta.js · rendered by varg))
• Time: Drive from the frame. Runs on its own clock (requestAnimationFrame, timers, springs or CSS). Drive it from frame / fps before rendering, or the render drifts.
• Runs: local render, free
• Aspect: any

Prompt that renders it frame-exact

Use the Vanta.js Birds effect (https://www.vantajs.com/?effect=birds, MIT, source github.com/tengbao/vanta/blob/master/src/vanta.birds.js) as the full-frame background behind the opening title. Load three.js r134 and [email protected]/dist/vanta.birds.min.js, then mount VANTA.BIRDS on a div that fills the frame with mouseControls, touchControls and gyroControls set to false. Birds is a GPU flocking simulation that reads performance.now every requestAnimationFrame, so make it deterministic: seed Math.random before init, swap performance.now and requestAnimationFrame for a virtual clock that advances 1000/fps ms per video frame, and render frames in order from frame 0 (the flock carries state, so replay from the start after a backwards seek). Take backgroundColor, color1 and color2 from the brand palette, keep quantity at 3–4 so the title stays readable, and lower speedLimit for a calmer flock.

Used in

• Top-N listicle
• Quiz, poll & would-you-rather
• Bar chart race
• Science what-if explainer
• Lyric video
• Audio visualizer
• Logo sting
• Countdown & launch timer

More particles & physics

• Confetti — npx hyperframes add confetti
• Liquid Metal — npx hyperframes add liquid-metal
• Particle Image Reveal — npx hyperframes add particle-image-reveal
• Pendulum Swing — npx hyperframes add pendulum-swing
• Snow — npx hyperframes add snow
• Spiral Galaxy — npx hyperframes add spiral-galaxy