Files
einundzwanzig-verein/videos/.opencode/skills/remotion-best-practices/rules/trimming.md

54 lines
1.2 KiB
Markdown

---
name: trimming
description: Trimming patterns for Remotion - cut the beginning or end of animations
metadata:
tags: sequence, trim, clip, cut, offset
---
Use `<Sequence>` with a negative `from` value to trim the start of an animation.
## Trim the Beginning
A negative `from` value shifts time backwards, making the animation start partway through:
```tsx
import { Sequence, useVideoConfig } from "remotion";
const fps = useVideoConfig();
<Sequence from={-0.5 * fps}>
<MyAnimation />
</Sequence>
```
The animation appears 15 frames into its progress - the first 15 frames are trimmed off.
Inside `<MyAnimation>`, `useCurrentFrame()` starts at 15 instead of 0.
## Trim the End
Use `durationInFrames` to unmount content after a specified duration:
```tsx
<Sequence durationInFrames={1.5 * fps}>
<MyAnimation />
</Sequence>
```
The animation plays for 45 frames, then the component unmounts.
## Trim and Delay
Nest sequences to both trim the beginning and delay when it appears:
```tsx
<Sequence from={30}>
<Sequence from={-15}>
<MyAnimation />
</Sequence>
</Sequence>
```
The inner sequence trims 15 frames from the start, and the outer sequence delays the result by 30 frames.