Individual skill

webgl-particle-galaxy

A real-time particle galaxy — tens of thousands of additive-blended GPU points spiraling around a bright core, their orbits solved entirely in the vertex shader (from gl_VertexID), so the whole cloud draws in one call. Rendered as a single self-contained `index.html`. Use when the brief asks for a "particle field", "particle galaxy", "point cloud", "instanced points", "starfield", "GPU particles", or a swirling generative point system. OpenDesign serves this in powered-preview mode so the GPU stack actually runs.

plugins/_official/examples/webgl-particle-galaxy/SKILL.md

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Matches the observed repository HEAD: Yes
Scanner rules are current: Yes
Repository scan complete: No
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Observed behavior: Network or broad shell
Last checked: Nov 9, 2026

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Repository context

Repository stars (not skill ratings): 107,052
Repository last updated: Nov 11, 2026
License: Apache-2.0

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

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SKILL.mdcore · 3,794 bytes
example.htmlasset · 7,054 bytes
open-design.jsonasset · 8,350 bytes

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# Particle Galaxy Skill

Produce a single self-contained `index.html` that renders a real-time particle system full-screen, with a clean typographic overlay on top. The signature move: **compute each particle's position on the GPU** so the CPU never loops over particles.

## Why this is a powered artifact

OpenDesign detects `getContext('webgl2')` and renders this file in **powered preview** — a cross-origin-isolated iframe with `allow-same-origin`. The full GPU pipeline is available; you do not need to work around the opaque sandbox.

## Resource map

```
webgl-particle-galaxy/
├── SKILL.md      ← you're reading this
└── example.html  ← a working 50,000-point WebGL2 galaxy (READ FIRST)