ParticleEmitter

A Compose Multiplatform particle-effects library for Android, iOS, JVM desktop, and web (JS/Wasm). It ships two complementary rendering engines:

• CanvasParticleEmitter — Canvas-based, high-performance rendering tuned for 1 000+ lightweight particles (circles, images, text, paths).

• ParticlesEmitter — Compose layout-based, where every particle is an arbitrary @Composable, so you can fling text, images, or whole UI elements.

Both engines share a physics model: directional gravity, configurable spread, initial force, rotation, scale/alpha animation, and per-engine edge handling.

Quick start

CanvasParticleEmitter(
    modifier = Modifier.fillMaxSize(),
    config = CanvasEmitterConfig(
        particlePerSecond = 50,
        emitterCenter = DpOffset(200.dp, 400.dp),
        startRegionShape = CanvasEmitterConfig.Shape.POINT,
        startRegionSize = DpSize(0.dp, 0.dp),
        particleShapes = listOf(ParticleShape.Circle),
        lifespanRange = 800..1200,
        fadeOutTime = 600..1000,
        scaleTime = 800..1200,
        colors = listOf(Color.Cyan, Color.Magenta, Color.Yellow),
        particleSizes = listOf(DpSize(8.dp, 8.dp), DpSize(12.dp, 12.dp)),
    ),
)

See the project README for gravity, edge-behavior, and multi-emitter recipes, and PERFORMANCE.md for particle-count budgets per target frame rate.