Local Sky
The colour of the sky at a given hour, from real single scattering.
Knobs
Preset
Colour2
Light3
Shape1
Motion1
Still frame
What reduced motion shows: 2 s.
Install
Code
components/isomer/localsky.tsx
'use client'; // Generated by isomer. Do not edit by hand; run `isomer add` again to update. (from packages/react/src/Localsky.tsx) // generated by packages/react/scripts/gen-components.mjs, do not edit import type { CSSProperties } from 'react'; import { useIsomerCanvas, type Mount } from './useIsomerCanvas'; // @ts-ignore: the runtime is plain JS with no type declarations import * as runtime from './localsky.js'; const { DEFAULTS, mount } = runtime as { DEFAULTS: LocalskyKnobs; mount: Mount }; export interface LocalskyKnobs { hour: number; haze: number; sunSize: number; horizonHeight: number; exposure: number; drift: number; afterglow: number; groundLight: number; discBrightness: number; glareStrength: number; sunX: number; } export interface LocalskyProps extends Partial<LocalskyKnobs> { className?: string; style?: CSSProperties; /** Render this one frame (seconds) and run no clock. Used by the parity tests. */ time?: number; paused?: boolean; /** Draw t = 0 once while drift is 0, and when the user prefers reduced motion. Default true. */ respectReducedMotion?: boolean; /** Keep each frame readable after it is shown, for canvas.toDataURL or readPixels. Read at mount. Default false. */ preserveDrawingBuffer?: boolean; } export const localskyDefaults: Readonly<LocalskyKnobs> = DEFAULTS; export function Localsky({ className, style, time, paused, respectReducedMotion, preserveDrawingBuffer, ...props }: LocalskyProps) { const knobs = { ...DEFAULTS }; for (const k of Object.keys(DEFAULTS) as (keyof LocalskyKnobs)[]) { const v = props[k]; if (v !== undefined) (knobs as Record<string, unknown>)[k] = v; } const ref = useIsomerCanvas({ mount, knobs, time, paused, respectReducedMotion, preserveDrawingBuffer, clock: knobs.drift !== 0 }); return <canvas ref={ref} className={className} style={{ display: 'block', width: '100%', height: '100%', ...style }} />; }
Parity
99.4Pass
iPhone 17 Pro simulator, iOS 26.3.1 against Chromium headless + SwiftShader, 15 October 2026.