brylith

A one-screen interactive hero for a fictional digital nature lab, "BRYLITH® — A living surface.", rendered live with three.js and React Three Fiber on a blue-violet gradient. A volcanic stone, generated in code from a seed with conchoidal fractures, cracks and a slate grain, floats and tilts towards the pointer. Wherever the cursor touches it, volumetric moss grows on its real surface: slow strokes saturate, fast ones leave a lighter trail, cracks green first and a dark moist halo runs ahead. Leave a patch for 2–3 seconds and the moss recedes and the stone dries. White violets open while you water mature moss, and a click or tap grows a bouquet of four to seven. At a quarter of the surface a growth wave runs out along the cracks, the moss thickens and small ferns unfurl, while a "SURFACE AWAKENING" meter tracks the coverage. DM Sans and Instrument Serif type enters in a staged sequence, with a custom ring cursor, an 8-second cinematic ?demo=1 take that paints through the same pipeline, a phone layout and a quality switch for touch devices.