Remotion Interactivity

<Interactive.Div
  name="Greeting card"
  style={{fontSize: 80, padding: 24}}
>
  Hello
</Interactive.Div>

// 👍 Fixed copy stays editable
<Interactive.Div name="Title">
  Remotion Best Practices
</Interactive.Div>

<>
  <Interactive.Div name="Hero title" style={{fontSize: 80}}>
    Launch day
  </Interactive.Div>
  <Img name="Avatar" src="https://remotion.media/image.jpeg" />
  <Video name="Background" src="https://remotion.media/video.mp4" />
  <Sequence name="Title">
    Launch day
  </Sequence>
</>

<Interactive.Div
  style={{
    fontSize: 80,
    color: 'red',
  }}
>
  Hello World!
</Interactive.Div>

const baseStyle = useMemo(() => {
  return {
    fontSize: 12 // ❌ Non-inline styles are not supported
  }
}, []);

<Interactive.Div
  style={{
    ...baseStyle, // ❌ Spreading is not supported
    color: RED, // ❌ Referring to constants is not supported
    scale: frame * 10 // ❌ Math is not supported
  }}
>
  Hello World!
</Interactive.Div>

const {fps, durationInFrames} = useVideoConfig();

// 👍 Inline values can be standardized and keyframed
<Interactive.Div
  name="Product card"
  style={{
    color: 'white',
    fontSize: 80,
    scale: interpolate(frame, [0, fps], [0, 1], {
      easing: Easing.spring({damping: 200}),
      output: 'perceptual-scale',
      extrapolateLeft: 'clamp',
      extrapolateRight: 'clamp'
    }),
    rotate: interpolate(frame, [0, 1 * fps], ['0deg', '20deg'], {
      easing: Easing.spring({damping: 200}),
      extrapolateLeft: 'clamp',
      extrapolateRight: 'clamp'
    }),
    translate: interpolate(
      frame,
      [durationInFrames - 30, durationInFrames],
      ['0px 0px', '0px 120px'],
      {
        easing: Easing.spring({damping: 200}),
        output: 'perceptual-scale',
        extrapolateLeft: 'clamp',
        extrapolateRight: 'clamp'
      }
    ),
  }}
/>

const translateY = interpolate(frame, [0, 30], [0, 120]); // ❌ Math should be directly in the markup

<Interactive.Div
  name="Product card"
  style={{
    translate: translateY, // ❌ Only inline interpolate() calls are supported,
    rotate: interpolate(frame, [start, start + 10], [0, Math.PI]), // ❌ Cannot use math with arbitrary variables, cannot use constants
    scale: interpolate(anyVariable, [0, 30], [0, 1]) // ❌ Can only interpret the `frame` variable.
  }}
/>

// 👍 Static values are in <Composition>, dynamic values are in calculateMetadata()
const calculateMetadata = useMemo(async () => {
  const dimensions = await getDimensions(); // just an example
  return {width: dimensions.width, height: dimensions.height};
});

<Composition
  id="my-video"
  component={MyComponent}
  durationInFrames={150}
  fps={30}
  calculateMetadata={calculateMetadata}
  defaultProps={{title: 'Hello', color: '#0b84ff'}}
/>

const defaultProps = {title: 'Hello', color: '#0b84ff'}; // ❌ Don't extract defaultProps, must be inline
const calculateMetadata = useMemo(() => {
  // ❌ Unnecessary because no calculation is being done,
  return {durationInFrames: 150, fps: 30, width: 1920, height: 1080};
});

<Composition
  id="my-video"
  component={MyComponent}
  calculateMetadata={calculateMetadata}
  defaultProps={{
    title: 'Hello',
  } as Props} // ❌ Don't have type assertions, instead type MyComponent correctly
/>

// 👍 Parameters are inline and the array shape is stable
<CanvasImage
  src={src}
  width={1280}
  height={720}
  effects={[
    radialProgressiveBlur({
      center: [0.5, 0.5],
      width: 1.2,
      height: 0.8,
      start: 0.2,
      disabled: true,
      rotation: interpolate(frame, [0, 120], [0, 180]),
    }),
  ]}
/>

const center = [0.5, 0.5] as const;
const rotation = frame * 1.5;

<CanvasImage
  src={src}
  width={1280}
  height={720}
  // ❌ Conditional effect is not animateable
  effects={enabled ? [
    radialProgressiveBlur({
      // ❌ Not inline
      center,
      rotation,
    }),
  ] : []}
/>