Dither Bloom

A soft moving light is resolved through an ordered dither matrix, producing sharp threshold bands, spectral edge noise and a clean dark floor.

• Hero backdrops
• Section transitions
• Ambient product moments

• Ordered threshold matrices avoid temporal shimmer
• Light and dither fields move at separate rates
• Hard pixel output keeps large gradients from banding
• A component-specific renderer and control contract—not a palette swap of another release
• Compact and full previews share one visibility-aware production renderer

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.