It recreates the reflection rings and light artifacts that appear when a camera points toward a bright source, with several details radiating around one light.
Move the virtual light with `lightPosition`. `intensity` from 0–2 sets overall brightness, `ghostIntensity` from 0–1 changes reflection discs along the flare axis, `haloRadius` from 0.1–1 sets the ring size, and `starburstIntensity` from 0–1 controls the star shaped rays.
Lens Flare draws its own effect and does not detect a light source in a photo. Align `lightPosition` with a bright point in the background, and keep the ghosts and halo away from text or small controls.
When to use
Use it for a cinematic title, a hero that needs a highlighted light source, or a decorative accent on a photo or video. Avoid it in scenes without a bright source or screens with many small details to read.