Adding an Interactive Demo to Docs

Interactive demos render a Remotion composition inline in documentation pages using @remotion/player. They live in packages/docs/components/demos/.

Effect demos are separate: use <EffectsDemo type="effects-..." /> and register them in packages/docs/components/effects-demos/registry.ts with the real effect schema, not the generic <Demo> options array.

Steps

1. Create a component in packages/docs/components/demos/ (e.g. MyDemo.tsx). It should be a standard React component using Remotion hooks like useCurrentFrame() and useVideoConfig().

2. Register the demo in packages/docs/components/demos/types.ts:

   • Import the component
   • Export a DemoType object with these fields:
     • id: unique string used in <Demo type="..." />
     • comp: the React component
     • compWidth / compHeight: canvas dimensions (e.g. 1280x720)
     • fps: frame rate (typically 30)
     • durationInFrames: animation length
     • autoPlay: whether it plays automatically
     • options: array of interactive controls (can be empty [])

3. Add to the demos array in packages/docs/components/demos/index.tsx:

   • Import the demo constant from ./types
   • Add it to the demos array

4. Use in MDX with <Demo type="your-id" />

Options

Options add interactive controls below the player. Each option needs name and optional ('no', 'default-enabled', or 'default-disabled').

Supported types:

• type: 'numeric' — slider with min, max, step, default
• type: 'boolean' — checkbox with default
• type: 'enum' — dropdown with values array and default
• type: 'string' — text input with default

Option values are passed to the component as inputProps. Access them as regular React props.

Example registration

export const myDemo: DemoType = {
  comp: MyDemoComp,
  compHeight: 720,
  compWidth: 1280,
  durationInFrames: 150,
  fps: 30,
  id: 'my-demo',
  autoPlay: true,
  options: [],
};