Light Bloom

An edge-positioned light source that produces a normalized bloom, layered shafts, fine grain and pointer-following movement without visible gradient banding.

• Hero backdrops
• Section transitions
• Ambient product moments

• Bloom intensity is normalized independently from its visible spread
• Layered shafts use seeded width, angle and opacity variation
• Source follows the active edge with frame-rate-independent smoothing
• Fine dither and grain break up large low-contrast color ramps
• Every control maps directly to this component's independent renderer contract
• Full-size and compact previews use the same implementation and behavior

Adaptive sampling, capped DPR and visibility-based suspension keep the renderer predictable. Test density on low-power mobile hardware before increasing it.

Pointer and touch coordinates are container-scoped; offscreen renderers stop work and pixel ratio is capped.

The visual canvas is decorative by default. Pair it with a semantic heading or description, and reduced motion holds a stable rendered frame.