# Quiet Particle Field — effect skill for backdrops

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

Out-of-focus dots drift slowly in depth behind the content, adding life without motion noise.

- **Type:** [Effect](https://varg.ai/how-to/effects.md) · [Backdrops](https://varg.ai/how-to/browse/skills/backdrops.md)
- **Slug:** `quiet-particle-field`
- **Status:** live
- **Publisher:** tsParticles (Matteo Bruni) (community)
- **License:** MIT
- **Source:** https://github.com/tsparticles/presets/blob/main/presets/ambient/src/options.ts
- **Works in:** Claude Code, Claude.ai, Codex, Cursor, OpenClaw, Gemini CLI, Any MCP client, varg Studio
- **Requires:** HyperFrames (npx hyperframes), Remotion, CapCut (by hand)
- **Cost:** Free — the take renders locally; generated footage, if any, bills by the model

## What it does

Built on [Ambient](https://github.com/tsparticles/presets/blob/main/presets/ambient/src/options.ts) by tsparticles, MIT. The write-up and recipes below are varg's.

Sparse soft circles of two or three sizes, low opacity, drifting upward or sideways; a faint glow line optional.

**When:** Long holds on titles or quotes; calm sections of a film.

**Watch out:** Do not increase density until it looks like snow; 20–60 particles on 1080p is plenty.

**Timing:** Drift 5–20 px/s with a fixed seed so renders match.

**Also called:** bokeh particles, ambient dots, sparkles

### In HyperFrames

```bash
npx hyperframes add starfield
```
Seek-safe: particle positions are a function of time and seed.

### In Remotion

```tsx
const rnd = (i:number)=> (Math.sin(i*999)*10000)%1;
Array.from({length:40}).map((_,i)=> <div style={{left:`${Math.abs(rnd(i))*100}%`, top:`${(Math.abs(rnd(i+7))*100 - frame*0.05*(1+i%3))%100+100}%`}}/>)
```

### In CapCut

Media → Library: search "bokeh"/"particles"; Blend → Screen at 30–50% opacity over the background.

### Ready-made components

- [Ambient](https://skills.varg.ai/component/tsparticles.ambient/) (tsparticles): pnpm add @tsparticles/engine @tsparticles/slim @tsparticles/preset-<name>
- [Particles](https://skills.varg.ai/component/magicui.particles/) (magic-ui): npx shadcn@latest add @magicui/particles
- [Sparkles](https://skills.varg.ai/component/aceternity.sparkles/) (aceternity): npx shadcn@latest add @aceternity/sparkles
- [Starfield](https://skills.varg.ai/component/hf.starfield/) (hyperframes): npx hyperframes add starfield

### Where this comes from

- [UX Design Bootcamp: the rise of Linear style design](https://bootcamp.uxdesign.cc/the-rise-of-linear-style-design-origins-trends-and-techniques-4fd96aab7646)

## Use when

- Long holds on titles or quotes; calm sections of a film.

## Not for

- Do not increase density until it looks like snow; 20–60 particles on 1080p is plenty.

## Install

- Claude Code: `claude plugin marketplace add vargHQ/skills && claude plugin install varg@varg`
- Codex: `npx skills add vargHQ/skills --skill varg-video-edit-library -a codex -y`
- Cursor: `npx skills add vargHQ/skills --skill varg-video-edit-library -a cursor -y`

## Example output

https://s3.varg.ai/how-to/previews/c56a87eff5da/lib-tsparticles-ambient.mp4 — Preview of the Ambient component that builds this take (credit: Rendered by varg from the library’s own code (tsParticles · rendered by varg), https://particles.js.org/demos/recipes/ambient)

## More backdrops skills

- [Slow Mesh Gradient](https://varg.ai/how-to/skills/slow-mesh-gradient.md): Soft brand-colored fields blend and drift slowly behind titles and UI.
- [Aurora Behind the Title](https://varg.ai/how-to/skills/aurora-behind-title.md): Blurred light streaks drift sideways across a dark frame behind a centered title.
- [Faint Grid or Dot Field](https://varg.ai/how-to/skills/faint-grid-field.md): A very faint line grid or dot field gives structure behind UI and code, with a soft radial fade.
- [Spotlight From Above](https://varg.ai/how-to/skills/spotlight-from-above.md): Soft light cones fall from the top of a dark frame onto the product or title.
- [Film Grain Over Gradient](https://varg.ai/how-to/skills/film-grain-over-gradient.md): A fine animated grain sits over the gradient so it feels printed, removes banding and looks less digital.
- [Blurred Product Behind Text](https://varg.ai/how-to/skills/blurred-product-behind.md): The product UI itself, heavily blurred and dimmed, becomes the backdrop for a title or quote.

## Run the generation on varg

varg is one API key for the models these skills drive — Seedance 2.5, Kling 4, Veo 3.1, Wan 3, Nano Banana 2.1, GPT Image 2.5, ElevenLabs v4 and 200+ more — billed in credits, with a cost estimate before anything runs.

- Claude Code: `claude plugin marketplace add vargHQ/skills && claude plugin install varg@varg` (skill + hosted MCP)
- Codex, Cursor, Gemini CLI, OpenClaw: `npx skills add vargHQ/skills --skill varg-ai -a <agent> -y`
- Grok and any agent that reads SKILL.md: `npx skills add vargHQ/skills --skill varg-ai`, or point it at the skill's SKILL.md
- Claude.ai, ChatGPT, any MCP client: connect `https://mcp.varg.ai/mcp`
- API key: https://varg.ai/dashboard/api · Model specs: https://varg.ai/models/llms.txt