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Each ridge layer is a function of world-x (ridged multifractal value noise, domain-warped, one function and a parameter row per layer) instead of a periodic strip. World-x is baked in 1.2-viewport chunks on demand: the first view bakes one chunk per layer, the rest are baked in ~6 ms tasks, and the compositor slides a track that is recycled each chunk. A slow yaw/pitch sway rides on top. ridgeBake.ts shades each column from the crest slope against the sun with a lit rim, a light-to-haze face gradient and erosion streaks, reusing the existing aerial perspective as the depth treatment. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
29 lines
1.2 KiB
TypeScript
29 lines
1.2 KiB
TypeScript
// Standalone page for the ridge scene: full window, no host app. `?tier=still|low|full` picks the
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// tier, `?probe=1` shows the rAF median/p95 readout. The bake record (each chunk's cost, from
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// the scene's `onBake`) and the long tasks the page saw are on `window.bakes` and `window.longTasks`
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// for a driver to read. Not shipped.
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import { startBackgroundScene } from '../../src/app/features/scene';
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import type { SceneTier } from '../../src/app/features/scene';
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const q = new URLSearchParams(location.search);
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const tier = (q.get('tier') ?? 'full') as SceneTier;
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const canvas = document.getElementById('c') as HTMLCanvasElement;
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const w = window as unknown as { scene: unknown; bakes: unknown[]; longTasks: number[]; firstViewMs: number };
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w.bakes = [];
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w.longTasks = [];
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try {
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new PerformanceObserver((l) => l.getEntries().forEach((e) => w.longTasks.push(e.duration))).observe({
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entryTypes: ['longtask'],
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});
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} catch {
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// No long-task entries in this browser.
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}
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const t0 = performance.now();
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startBackgroundScene({ tier }, {}, {
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canvas,
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onBake: (b: unknown) => w.bakes.push(b),
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} as never).then((scene) => {
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w.firstViewMs = performance.now() - t0;
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w.scene = scene;
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document.title = scene ? 'ridge: running' : 'ridge: unavailable (CSS ground)';
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});
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