cyrusnuevodia When to use
Use this skills whenever you are dealing with Remotion code to obtain the domain-specific knowledge.
New project setup
When in an empty folder or workspace with no existing Remotion project, scaffold one using:
npx create-video@latest --yes --blank --no-tailwind my-video
Replace my-video with a suitable project name.
Designing a video
Before designing visual scenes, layouts, promos, motion graphics, or text-heavy videos, load rules/video-layout.md for video-first layout and text sizing guidance.
Animate properties using useCurrentFrame() and interpolate(). Prefer interpolate() over spring() unless physics-based motion is explicitly needed. Use Easing.bezier() to customize timing, including jumpy or overshooting motion.
For animations that should be editable in Remotion Studio, keep the interpolate() call inline in the style prop and use individual CSS transform properties (scale, translate, rotate) instead of composing a transform string.
import { useCurrentFrame, Easing, interpolate, useVideoConfig } from "remotion";
export const FadeIn = () => {
const frame = useCurrentFrame();
const { fps } = useVideoConfig();
const opacity = interpolate(frame, [0, 2 * fps], [0, 1], {
extrapolateRight: "clamp",
extrapolateLeft: "clamp",
easing: Easing.bezier(0.16, 1, 0.3, 1),
});
return <div style={{ opacity }}>Hello World!</div>;
};
Prefer:
style={{
scale: interpolate(frame, [0, 100], [0, 1]),
translate: interpolate(frame, [0, 100], ["0px 0px", "100px 100px"]),
rotate: interpolate(frame, [0, 100], ["20deg", "90deg"]),
}}
Over:
const scale = interpolate(frame, [0, 100], [0, 1]);
style={{
transform: `scale(${scale})`,
}}
CSS transitions or animations are FORBIDDEN - they will not render correctly. Tailwind animation class names are FORBIDDEN - they will not render correctly.
Place assets in the public/ folder at your project root.
Use staticFile() to reference files from the public/ folder.
Add images using the <Img> component:
import { Img, staticFile } from "remotion";
export const MyComposition = () => {
return <Img src={staticFile("logo.png")} style={{ width: 100, height: 100 }} />;
};
Add videos using the <Video> component from @remotion/media:
import { Video } from "@remotion/media";
import { staticFile } from "remotion";
export const MyComposition = () => {
return <Video src={staticFile("video.mp4")} style={{ opacity: 0.5 }} />;
};
Add audio using the <Audio> component from @remotion/media:
import { Audio } from "@remotion/media";
import { staticFile } from "remotion";
export const MyComposition = () => {
return <Audio src={staticFile("audio.mp3")} />;
};
Assets can be also referenced as remote URLs:
import { Video } from "@remotion/media";
export const MyComposition = () => {
return <Video src="https://remotion.media/video.mp4" />
};
To delay content wrap it in <Sequence> and use from.
To limit the duration of an element, use durationInFrames of <Sequence>.
<Sequence> by default is an absolute fill. For inline content, use layout="none".
import { Sequence } from "remotion";
export const Title = () => {
const frame = useCurrentFrame();
const { fps } = useVideoConfig();
const opacity = interpolate(frame, [0, 2 * fps], [0, 1], {
extrapolateRight: "clamp",
extrapolateLeft: "clamp",
easing: Easing.bezier(0.16, 1, 0.3, 1),
});
return <div style={{ opacity }}>Title</div>;
};
export const Subtitle = () => {
return <div>Subtitle</div>;
};
const Main = () => {
const {fps} = useVideoConfig();
return (
<AbsoluteFill>
<Sequence>
<Background />
</Sequence>
<Sequence from={1 * fps} durationInFrames={2 * fps} layout="none">
<Title />
</Sequence>
<Sequence from={2 * fps} durationInFrames={2 * fps} layout="none">
<Subtitle />
</Sequence>
</AbsoluteFill>
);
}
The width, height, fps, and duration of a video is defined in src/Root.tsx:
import { Composition } from "remotion";
import { MyComposition } from "./MyComposition";
export const RemotionRoot = () => {
return (
<Composition
id="MyComposition"
component={MyComposition}
durationInFrames={100}
fps={30}
width={1080}
height={1080}
/>
);
};
Metadata can also be calculated dynamically:
import { Composition, CalculateMetadataFunction } from "remotion";
import { MyComposition, MyCompositionProps } from "./MyComposition";
const calculateMetadata: CalculateMetadataFunction<
MyCompositionProps
> = async ({ props, abortSignal }) => {
const data = await fetch(`https://api.example.com/video/${props.videoId}`, {
signal: abortSignal,
}).then((res) => res.json());
return {
durationInFrames: Math.ceil(data.duration * 30),
props: {
...props,
videoUrl: data.url,
},
width: 1080,
height: 1080,
};
};
export const RemotionRoot = () => {
return (
<Composition
id="MyComposition"
component={MyComposition}
fps={30}
width={1080}
height={1080}
defaultProps={{ videoId: "abc123" }}
calculateMetadata={calculateMetadata}
/>
);
};
Starting preview
Start the Remotion Studio to preview a video:
npx remotion studio
Optional: one-frame render check
You can render a single frame with the CLI to sanity-check layout, colors, or timing. Skip it for trivial edits, pure refactors, or when you already have enough confidence from Studio or prior renders.
npx remotion still [composition-id] --scale=0.25 --frame=30
At 30 fps, --frame=30 is the one-second mark (--frame is zero-based).
Captions
When dealing with captions or subtitles, load the ./rules/subtitles.md file for more information.
Using FFmpeg
For some video operations, such as trimming videos or detecting silence, FFmpeg should be used. Load the ./rules/ffmpeg.md file for more information.
Silence detection
When needing to detect and trim silent segments from video or audio files, load the ./rules/silence-detection.md file.
Audio visualization
When needing to visualize audio (spectrum bars, waveforms, bass-reactive effects), load the ./rules/audio-visualization.md file for more information.
Sound effects
When needing to use sound effects, load the ./rules/sfx.md file for more information.
Visual and pixel effects
When creating a visual effect, prefer: 1. normal Remotion/HTML/CSS/SVG/filter/blend/mask animation, 2. a listed effect via rules/effects.md, including on HTML rendered through <HtmlInCanvas>, 3. a custom createEffect() via rules/effects.md when the user asks for a reusable/project-specific effect, 4. custom <HtmlInCanvas onPaint> via rules/html-in-canvas.md only if no effect fits.
For light leak overlays, see rules/light-leaks.md. Docs: https://www.remotion.dev/docs/effects
Available effects: brightness(), contrast(), colorKey(), duotone(), grayscale(), hue(), invert(), saturation(), tint(), thermalVision(), blur(), linearProgressiveBlur(), zoomBlur(), dropShadow(), glow(), lightTrail(), evolve(), mirror(), scale(), uvTranslate(), xyTranslate(), barrelDistortion(), chromaticAberration(), fisheye(), cornerPin(), wave(), burlap(), emboss(), dotGrid(), halftone(), noise(), noiseDisplacement(), pattern(), pixelate(), pixelDissolve(), scanlines(), speckle(), shine(), shrinkwrap(), vignette(), contourLines(), checkerboard(), halftoneLinearGradient(), gridlines(), whiteNoise(), tvSignalOff(), lines(), rings(), waves(), zigzag(), lightLeak(), starburst().
3D content
See rules/3d.md for 3D content in Remotion using Three.js and React Three Fiber.
Advanced audio
See rules/audio.md for advanced audio features like trimming, volume, speed, pitch.
Dynamic duration, dimensions and data
See rules/calculate-metadata.md for dynamically set composition duration, dimensions, and props.
Advanced compositions
See rules/compositions.md for how to define stills, folders, default props and for how to nest compositions.
Google Fonts
Is the recommended way to load fonts in Remotion. See rules/google-fonts.md for how to load Google Fonts.
Local fonts
See rules/local-fonts.md for how to load local fonts.
Getting audio duration
See rules/get-audio-duration.md for getting the duration of an audio file in seconds with Mediabunny.
Getting video dimensions
See rules/get-video-dimensions.md for getting the width and height of a video file with Mediabunny.
Getting video duration
See rules/get-video-duration.md for getting the duration of a video file in seconds with Mediabunny.
GIFs
See rules/gifs.md for how to display GIFs synchronized with Remotion's timeline.
Advanced Images
See rules/images.md for sizing and positioning images, dynamic image paths, and getting image dimensions.
Lottie animations
See rules/lottie.md for embedding Lottie animations in Remotion.
Measuring DOM nodes
See rules/measuring-dom-nodes.md for measuring DOM element dimensions in Remotion.
Measuring text
See rules/measuring-text.md for measuring text dimensions, fitting text to containers, and checking overflow.
Advanced sequencing
See rules/sequencing.md for more sequencing patterns - delay, trim, limit duration of items.
TailwindCSS
See rules/tailwind.md for using TailwindCSS in Remotion.
Text animations
See rules/text-animations.md for typography and text animation patterns.
Advanced timing
See rules/timing.md for advanced timing with interpolate and Bézier easing, and springs.
Transitions
See rules/transitions.md for scene transition patterns.
Transparent videos
See rules/transparent-videos.md for rendering out a video with transparency.
Trimming
See rules/trimming.md for trimming patterns - cutting the beginning or end of animations.
Advanced Videos
See rules/videos.md for advanced knowledge about embedding videos - trimming, volume, speed, looping, pitch.
Parameterized videos
See rules/parameters.md for making a composition parametrizable by adding a Zod schema.
Maps
For simple maps with little flyovers, consider using static map images. For complex maps with animated routes or flyovers, load the maps rule: rules/maplibre.md
Voiceover
See rules/voiceover.md for adding AI-generated voiceover to Remotion compositions using ElevenLabs TTS.