Particle System

Drive many small elements with simple per-particle rules to get emergent, organic motion. Use 2D canvas for hundreds, GPU Points for thousands.

When to use

• Particle/constellation backgrounds and ambient motion.
• Celebratory bursts: confetti, sparks. Weather: snow, rain. Volumetric: smoke.
• Flow-field / curl-noise swirls and data-driven point clouds.
• Connected-dot networks (lines between nearby particles).

Core loop: integrate per particle

Each particle holds state and is advanced every frame: accumulate forces into acceleration, integrate velocity and position, age it, respawn when dead. Scale by dt for frame-rate independence.