remotion-markup

This is guidance for writing Remotion React Markup. If this is not relevant, load Remotion Best Practices instead. ## Preserve user changes Users may make edits in the code outside of the conversation. If you detect a surprising change made in the meanwhile, don't overwrite it, assume it was intentional or ask for confirmation. ## General rules Inside a composition or scene component, get `fps` from `useVideoConfig()` for all seconds-to-frames calculations, including timing props such as `from`, `trimBefore`, `durationInFrames`, and `premountFor`. Keeping the expression on the JSX node, such as `trimBefore={4 * fps}`, lets Studio edit the timing and keeps it correct if the composition frame rate changes. Drive animations using `useCurrentFrame()` and `interpolate()`. CSS `transition` or `animation` will not render correctly, they need to refactored. Tailwind animation class will not render correctly, they need to be refactored. Use `Easing.bezier()` and `Easing.spring()` to customize timing. Structure your markup according to Remotion Interactivity Best Practices. Prefer `Interactive.withSchema({wrapInSequence: true})` for custom visual components with editable props, and register reusable scenes as connected compositions. Put timing directly on components that support it; avoid redundant `<Sequence>` wrappers. Give every timed component that supports `premountFor` one second of premounting: `premountFor={fps}`, where `fps` comes from `useVideoConfig()`. Apply this to media, interactive components, `<Sequence>`, `<Series.Sequence>`, `<TransitionSeries.Sequence>`, and `<TransitionSeries.Overlay>`, including timed components nested inside scenes. Premount the parent timeline item too when a nested item needs to mount before the parent starts. A component without `premountFor`, such as `<TransitionSeries.Transition>`, needs no substitute. The Studio edits the JSX source node that created an item. Author every composition registration, clip, scene, layer and sequence that should be editable independently as its own JSX node, with its editable props inline. Programmatic loops are suitable when the generated instances are intentionally controlled as one source template, not when users need to edit the instances separately. ```tsx import { useCurrentFrame, useVideoConfig, Easing, interpolate, Interactive } from "remotion"; export const FadeIn = () => { const frame = useCurrentFrame(); const {fps} = useVideoConfig(); return ( <Interactive.Div name="Title" premountFor={fps} style={{ opacity: interpolate(frame, [0, 2 * fps], [0, 1], { extrapolateRight: "clamp", extrapolateLeft: "clamp", easing: Easing.bezier(0.16, 1, 0.3, 1), }), }} > Hello World! </Interactive.Div> ); }; ``` Keep the `interpolate()` call inline in the `style` prop. Use `scale`, `translate`, `rotate` CSS properties over `transform`. ```tsx // 👍 Inline editable keyframes and transform shorthands style={{ scale: interpolate(frame, [0, 100], [0, 1], { extrapolateLeft: 'clamp', extrapolateRight: 'clamp', easing: Easing.spring({damping: 200}), output: 'perceptual-scale' // For `scale` animations, use "output: 'perceptual-scale'" }), translate: interpolate(frame, [0, 100], ["0px 0px", "100px 100px"], { extrapolateLeft: 'clamp', extrapolateRight: 'clamp', easing: Easing.spring({damping: 200}), }), rotate: interpolate(frame, [0, 100], ["20deg", "90deg"], { extrapolateLeft: 'clamp', extrapolateRight: 'clamp', easing: Easing.spring({damping: 200}), }), }} // 👎 Non-inline values and transform strings become harder to edit in Studio const scale = interpolate(frame, [0, 100], [0, 1]); style={{ transform: `scale(${scale})`, }} ``` ## Assets Place assets in the `public/` folder at your project root. Use `staticFile()` to reference files from the `public/` folder. ## Media components Add video and audio using `<Video>` and `<Audio>` from `@remotion/media`. Add images using the `<CanvasImage>` component. Add animated GIFs, APNG, WebP or AVIF images using `<AnimatedImage>`, use `@remotion/gif` if not using Chrome. Use `staticFile()` for files in `public/` or pass a remote URL directly: ```tsx import { Audio, Video } from "@remotion/media"; import { staticFile, CanvasImage, AnimatedImage, useVideoConfig } from "remotion"; export const MyComposition = () => { const {fps} = useVideoConfig(); return ( <> <Video src={staticFile("video.mp4")} premountFor={fps} style={{ opacity: 0.5 }} /> <Audio src={staticFile("audio.mp3")} premountFor={fps} /> <CanvasImage src={staticFile("logo.png")} premountFor={fps} style={{ width: 100, height: 100 }} /> <Video src="https://remotion.media/video.mp4" premountFor={fps} /> <AnimatedImage src={staticFile('nyancat.gif')} premountFor={fps} /> </> ); }; ``` If the composition is primarily a timeline of video or audio clips, read [video-editing.md](video-editing.md) before choosing its source structure. ## Example scene A background video with a lower third. The lower third is an interactive component with its own timeline, registered as a [connected composition](connected-compositions.md). Its text is passed as `children` and `accentColor` is an editable prop. The fade-in is keyframed inline at the call site. ```tsx // MyScene.tsx import { Video } from "@remotion/media"; import { Easing, interpolate, useCurrentFrame, useVideoConfig } from "remotion"; import { LowerThird } from "./LowerThird"; export const MyScene = () => { const { fps } = useVideoConfig(); const frame = useCurrentFrame(); return ( <> <Video name="Background" src="https://remotion.media/video.mp4" premountFor={fps} objectFit="cover" style={{ position: "absolute", width: "100%", height: "100%", }} /> <LowerThird name="Lower third" from={1 * fps} premountFor={fps} accentColor="#0b84f3" style={{ opacity: interpolate(frame, [1 * fps, 2 * fps], [0, 1], { extrapolateRight: "clamp", extrapolateLeft: "clamp", easing: Easing.bezier(0.16, 1, 0.3, 1), }), }} > Jane Doe, Product Designer </LowerThird> </> ); }; ``` ```tsx // LowerThird.tsx import type React from "react"; import { Interactive, type InteractivitySchema } from "remotion"; type LowerThirdProps = { readonly children: string; readonly accentColor: string; readonly style?: React.CSSProperties; }; const LowerThirdInner: React.FC<LowerThirdProps> = ({ children, accentColor, style, }) => { return ( <Interactive.Div style={{ position: "absolute", left: 80, bottom: 80, display: "flex", alignItems: "center", gap: 20, backgroundColor: "white", borderRadius: 16, padding: "20px 32px", color: "black", fontFamily: "Helvetica, Arial, sans-serif", fontSize: 48, fontWeight: 600, ...style, }} > <div style={{ width: 8, alignSelf: "stretch", borderRadius: 4, backgroundColor: accentColor, }} /> {children} </Interactive.Div> ); }; const lowerThirdSchema = { children: { type: "text-content", default: "", description: "Text" }, accentColor: { type: "color", default: "#0b84f3", description: "Accent color", }, } as const satisfies InteractivitySchema; export const LowerThird = Interactive.withSchema({ Component: LowerThirdInner, componentName: "<LowerThird>", schema: lowerThirdSchema, wrapInSequence: true, }); ``` ```tsx // Root.tsx import { Composition } from "remotion"; import { LowerThird } from "./LowerThird"; import { MyScene } from "./MyScene"; export const RemotionRoot: React.FC = () => { return ( <> <Composition id="MyScene" component={MyScene} durationInFrames={60} fps={30} width={1280} height={720} /> <Composition id="LowerThird" component={LowerThird} durationInFrames={30} fps={30} width={1280} height={720} defaultProps={{ children: "Jane Doe, Product Designer", accentColor: "#0b84f3", }} /> </> ); }; ``` ## Delaying, trimming Put timing directly on components that support it. See [Timing props](./timing-props.md) for the supported props, examples, and order of operations. ## Maps See [Remotion Maps](./remotion-maps/REFERENCE.md) if wanting to include maps in the video. ## Text highlights and annotations See [text-highlights.md](text-highlights.md) for text highlights (highlight markers), circles, underlines, strike-throughs, crossed-off text, boxes. ## Multi-scene videos See [multi-scene-video.md](multi-scene-video.md) if planning to make a video with multiple subsequent scenes. ## Connected compositions When a scene or group of layers deserves its own editable timeline, follow [connected-compositions.md](connected-compositions.md). Prefer this structure for substantial scenes in a multi-scene video. ### Pre-compose action For a Studio request such as `Pre-compose Ambient glow (src/BarChart.tsx:134)`, find the selected sequence markup at the given location. Make a connected composition, following [connected-compositions.md](connected-compositions.md): extract the markup into a named component, preferably make it interactive with `Interactive.withSchema({wrapInSequence: true})`, and register the same exported component reference with a unique `<Composition>` in the root. Render the interactive component directly with its timing props, or as the only child of a sequence when that wrapper has a purpose. If the selected node is already a sequence, keep its props and extract its children. The registration needs dimensions, fps, duration, and `defaultProps` equivalent to its parent use. A component extraction without a registered composition does not complete a pre-compose request. Carry inherited styles such as `fontFamily` and font loading into the extracted component; see [parent independence](connected-compositions.md#make-the-component-independent-of-its-parent). ## Voiceover See [voiceover.md](voiceover.md) for adding an AI-generated voiceover to Remotion compositions using ElevenLabs TTS. ## Embedding Videos See [embedding-videos.md](embedding-videos.md) for advanced knowledge about embedding videos - trimming, volume, speed, looping, pitch. ## Embedding Audio See [audio.md](audio.md) for advanced audio features like trimming, volume, speed, pitch. ## Cropping See [cropping.md](cropping.md) if needing to crop the visible rectangle of a component. ## Transitions See [transitions.md](transitions.md) for scene transition patterns. ## Motion blur When adding motion blur or a movement trail, read [motion-blur.md](motion-blur.md) for the preferred HTML-in-canvas approach, preview requirements, and alternatives. ## Visual and pixel effects When creating a visual effect, consider whether it is feasible using CSS and HTML, or whether a shader is needed. Order or preference: 1. Regular HTML + CSS or other web techniques 2. An effect applied to the element directly (`<Video>`, `<Img>`), or by wrapping the content in [`<HtmlInCanvas>`](html-in-canvas.md), which also accepts `effects`: - A listed effect via [effects.md](effects.md) - A custom `createEffect()` via [effects.md](effects.md) when no preset is available. ## 3D content See [./3d.md](./3d.md) for 3D content in Remotion using Three.js and React Three Fiber. ## Sound effects When needing to use sound effects, load the [./sfx.md](./sfx.md) file for more information. ## Audio visualization When needing to visualize audio (spectrum bars, waveforms, bass-reactive effects), load the [./audio-visualization.md](./audio-visualization.md) file for more information. ## Maps For static maps, animated routes and markers, geographic explainers, Mapbox, MapLibre, MapTiler, GeoJSON, or 3D geographic flyovers, load [Remotion Maps](./remotion-maps/REFERENCE.md). ## Captions When dealing with captions or subtitles, load the Remotion Captions skill for more information. ## Google Fonts Is the recommended way to load fonts in Remotion. See [google-fonts.md](google-fonts.md) for how to load Google Fonts. ## Local fonts See [local-fonts.md](local-fonts.md) for how to load local fonts. ## GIFs See [gifs.md](gifs.md) for how to display GIFs synchronized with Remotion's timeline. ## Advanced Images See [images.md](images.md) for sizing and positioning images, dynamic image paths, and getting image dimensions. ## Lottie animations See [lottie.md](lottie.md) for embedding Lottie animations in Remotion. ## Timing See [timing.md](timing.md) for more timing techniques for `interpolate()`. ## Parameterized videos See [parameters.md](parameters.md) for making a composition parametrizable by adding a Zod schema. ## Measuring DOM nodes See [measuring-dom-nodes.md](measuring-dom-nodes.md) for measuring DOM element dimensions in Remotion. ## Measuring text See [measuring-text.md](measuring-text.md) for measuring text dimensions, fitting text to containers, and checking overflow. ## Using FFmpeg For some video operations, such as trimming videos or detecting silence, FFmpeg should be used. Load the [./ffmpeg.md](./ffmpeg.md) file for more information. ## Silence detection When needing to detect and trim silent segments from video or audio files, load the [./silence-detection.md](./silence-detection.md) file. ## Dynamic duration, dimensions and data See [calculate-metadata.md](calculate-metadata.md) for dynamically set composition duration, dimensions, and props. ## Compositions and stills