import type { QualityPreset, QualitySettings, QualityTier } from '../types.js';
/**
 * Baseline render budgets per {@link QualityTier}: pixel ratio, shadow map
 * size, post-fx list, chunk view radius, particle budget, and light count.
 * Spread and override to customize; resolve via {@link getQualitySettings}.
 */
export declare const QUALITY_PRESETS: Record<QualityTier, QualityPreset>;
/**
 * Detect the device quality tier from cheap navigator/window heuristics.
 * `'mobile'` when touch-capable and narrower than 1280px, or 4 cores or fewer;
 * `'highEnd'` with 8+ cores and a devicePixelRatio of 2+; `'desktop'`
 * otherwise. Run once at boot — requires a browser environment.
 */
export declare function detectTier(): QualityTier;
/**
 * Resolve the preset for a tier into a {@link QualitySettings} object with the
 * tier attached. Defaults to the auto-detected tier from {@link detectTier}.
 */
export declare function getQualitySettings(tier?: QualityTier): QualitySettings;
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