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From pixijs-skills
Use this skill when understanding how PixiJS v8 renders frames: the systems-and-pipes renderer, the render loop, and how the library adapts to different environments. Covers WebGLRenderer/WebGPURenderer/CanvasRenderer selection, renderer.render() pipeline, environment detection, and pointers to per-topic deep dives. Triggers on: renderer, WebGL, WebGPU, Canvas, render loop, render pipeline, systems, environments, autoDetectRenderer.
npx claudepluginhub pixijs/pixijs-skills --plugin pixijs-skillsHow this skill is triggered — by the user, by Claude, or both
Slash command
/pixijs-skills:pixijs-core-conceptsThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Foundational model for how PixiJS v8 gets pixels on the screen: the renderer decides which GPU backend to use, the render loop drives per-frame work, and the environment layer adapts the library to browser, Web Worker, or SSR contexts. For the scene graph itself (Containers, transforms, destroy), see `pixijs-scene-core-concepts`.
Use this skill first for ANY PixiJS v8 task; it routes to the right specialized skill for the job. Covers the full PixiJS surface: Application setup, the scene graph (Container, Sprite, Graphics, Text, Mesh, ParticleContainer, DOMContainer, GifSprite), rendering (WebGL/WebGPU/Canvas, render loop, custom shaders, filters, blend modes), assets, events, color, math, ticker, accessibility, performance, environments, migration from v7, and project scaffolding. Triggers on: pixi, pixi.js, pixijs, PixiJS, v8, Application, app.init, Sprite, Container, Graphics, Text, Mesh, ParticleContainer, DOMContainer, GifSprite, Assets, Ticker, renderer, WebGL, WebGPU, scene graph, filter, shader, blend mode, texture, BitmapText, create-pixi, how do I draw, how do I render, how do I animate in pixi.
Renders high-performance 2D graphics, particle effects, sprite animations, and interactive canvases using PixiJS with WebGL/WebGPU acceleration for games and UI overlays.
Provides UI/UX resources: 50+ styles, color palettes, font pairings, guidelines, charts for web/mobile across React, Next.js, Vue, Svelte, Tailwind, React Native, Flutter. Aids planning, building, reviewing interfaces.
Share bugs, ideas, or general feedback.
Foundational model for how PixiJS v8 gets pixels on the screen: the renderer decides which GPU backend to use, the render loop drives per-frame work, and the environment layer adapts the library to browser, Web Worker, or SSR contexts. For the scene graph itself (Containers, transforms, destroy), see pixijs-scene-core-concepts.
console.log(app.renderer.name); // 'webgl' | 'webgpu' | 'canvas'
app.ticker.add((ticker) => {
sprite.rotation += 0.01 * ticker.deltaTime;
});
const tex = app.renderer.extract.texture({ target: app.stage });
app.renderer.render({ container: app.stage });
app.renderer is the WebGLRenderer, WebGPURenderer, or CanvasRenderer chosen by autoDetectRenderer. The TickerPlugin drives renderer.render() automatically; call it manually only with autoStart: false. Backend selection happens in Application.init({ preference }); see pixijs-application for setup.
Related skills: pixijs-application (Application construction and lifecycle), pixijs-ticker (per-frame logic, priorities, FPS capping), pixijs-environments (Web Worker, SSR, strict CSP), pixijs-custom-rendering (writing a RenderPipe), pixijs-scene-core-concepts (scene graph basics).
| Topic | Reference | When |
|---|---|---|
| Choosing a backend | references/renderers.md | Preference forms, per-renderer options, systems and pipes |
| Per-frame execution | references/render-loop.md | Priority order, time units, manual rendering |
For deep dives into any single topic, open the corresponding reference file. Non-browser targets (DOMAdapter, WebWorkerAdapter, custom adapters, strict CSP) are covered in the pixijs-environments skill.
pixijs-application. This skill explains what the renderer does under the hood.['webgpu', 'webgl'] as your preference array. WebGPU is fastest where available; WebGL is the reliable fallback. See references/renderers.md.DOMAdapter.set(WebWorkerAdapter) before app.init. See the pixijs-environments skill for complete setup.autoStart: false and call app.renderer.render(app.stage) from your own loop. See references/render-loop.md.UPDATE_PRIORITY.HIGH so physics runs before the render at LOW. See references/render-loop.md.RenderPipe. See pixijs-custom-rendering skill.'pixi.js/unsafe-eval'. See the pixijs-environments skill.Each renderer is composed of Systems (lifecycle services: textures, buffers, state, filters, masks) and RenderPipes (per-renderable instruction builders: sprite, graphics, mesh, particle, text, tiling). Writing a custom renderable means implementing a RenderPipe and registering it via extensions.
app.ticker.add(fn) registers a callback that runs every frame. The TickerPlugin registers app.render() at UPDATE_PRIORITY.LOW, so ticker callbacks at NORMAL or HIGH run before the draw. Disable the plugin with autoStart: false for manual control.
DOMAdapter abstracts every DOM call PixiJS makes (canvas creation, image loading, fetch, XML parsing). Swap with DOMAdapter.set(WebWorkerAdapter) for Workers or implement a custom Adapter for Node/SSR. Must be done before Application.init.
Wrong:
const app = new Application();
app.init({ width: 800, height: 600 });
console.log(app.renderer.name); // undefined — init() is async
Correct:
const app = new Application();
await app.init({ width: 800, height: 600 });
console.log(app.renderer.name); // 'webgl' | 'webgpu' | 'canvas'
Application.init() is async. app.renderer, app.canvas, and app.screen do not exist until after the promise resolves.
Wrong:
const app = new Application();
await app.init({ width: 800, height: 600 });
DOMAdapter.set(WebWorkerAdapter); // too late — init already allocated resources
Correct:
DOMAdapter.set(WebWorkerAdapter);
const app = new Application();
await app.init({ width: 800, height: 600 });
The adapter abstracts DOM calls the renderer makes during construction (canvas creation, image loading, fetch). Swap it before init() or the wrong adapter is baked into the renderer.
preference as a guaranteeWrong:
await app.init({ preference: "webgpu" });
// assume WebGPU is active
useWebGPUOnlyFeature(app.renderer);
Correct:
await app.init({ preference: "webgpu" });
if (app.renderer.name === "webgpu") {
useWebGPUOnlyFeature(app.renderer);
}
preference is a hint, not a demand. If the browser lacks WebGPU support, PixiJS falls back to WebGL (or Canvas). Always branch on renderer.name for backend-specific code.