crucıble

Nebula

A deep-space interstellar gas cloud: domain-warped fbm shader billowing luminous folds through a cool indigo-violet-into-teal gradient, with dark dust lanes, a twinkling starfield, and a soft depth glow. Original OGL fragment shader, hard-dithered, DPR-clamped, offscreen-paused, reduced-motion-safe.

oglpro

Installation

CLI

npx shadcn@latest add @crucible/nebula

Manual — install dependencies, then copy the source

npm install ogl

Props

PropTypeDefaultDescription
colors[string, string, string, string]Four tones: [void, violet, teal, core]. void is the deep-space base the gas floats on (near-black indigo), violet and teal are the two hue families the gas drifts between, core is the whisper of magenta at the brightest emission cores. Any hex string.
speednumber1Drift speed multiplier. 1 = default (very slow), 2 = twice as fast.
intensitynumber1Emission brightness / bloom of the gas, 0–2. 1 = default. Higher lifts the luminous cores; lower reads as thinner, more distant gas.
dustnumber1Strength of the dark dust lanes threading through the gas, 0–1. 0 removes the absorption filaments entirely; 1 = full contrast structure.
pausedbooleanFreeze the animation at its current frame.
Also accepts all props of React.ComponentPropsWithoutRef<"div">they pass through to the underlying element.

Honors prefers-reduced-motion with a designed static fallback, pauses offscreen and on hidden tabs, and passes className through.