Effects
LEGEND APPSPreview
Trajectory emitter
Repeat arbitrary content along native keyframe paths.
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Still captured in Legend Slides for macOS (development build).
Requires a Legend Slides build with effect installation support. Installs the particles pack (1.0.0, 15 KB source) and its dependencies. macOS host capabilities: reanimated, webgpu. Installed decks work offline.
Use it in a deck
---
title: Trajectory emitter
---
import { View, Text } from "react-native";
import { TrajectoryEmitter } from "slides:particles/TrajectoryEmitter";
export const paths = [0,1,2].map(index => [{time: 0,x: 200,y: 200,opacity: 0},{time: 300,x: 600,y: 200 + index * 100,opacity: 1},{time: 1800,x: 1400,y: 200 + index * 100,opacity: 0}]);
# Trajectory emitter
<View style={{ width: 1696, height: 650 }}>
<TrajectoryEmitter trajectories={paths} interval={800} renderParticle={() => <View style={{width: 36,height: 36,borderRadius: 18,backgroundColor: "#67e8f9"}} />} />
</View>
Configure
- trajectories
- Supply ordered native keyframes.
- interval / start
- Set spacing and start delay.
- renderParticle
- Supply the emitted content.
Only imported effects enter the compiled deck. Installation and versioning →