import type { RGB } from '../../../src/lib/primitives.types';
import type { UniformControl } from '../_shared/types';
/** Typed uniforms for the `clouds` layer shader. */
export type CloudsUniforms = {
    /** Sky color near the horizon. */
    readonly uSkyLowColor: RGB;
    /** Sky color overhead. */
    readonly uSkyHighColor: RGB;
    /** Lit (upper) cloud color. */
    readonly uCloudLightColor: RGB;
    /** Shadowed (lower) cloud color. */
    readonly uCloudDarkColor: RGB;
    /** Overall brightness; lower for night, ~1 for day. */
    readonly uExposure: number;
    /** Raymarch step distance; smaller = finer/slower, larger = coarser/faster. */
    readonly uStepSize: number;
    /** How fast the clouds drift. 0 freezes them. */
    readonly uCloudSpeed: number;
    /** Cloud noise frequency; smaller = larger/broader shapes, larger = busier. */
    readonly uCloudScale: number;
    /** Opacity contributed per sample; higher = more solid clouds. */
    readonly uDensity: number;
    /** Noise threshold; lower = more cloud cover, higher = clearer sky. */
    readonly uCoverage: number;
    /** Cloud edge softness; higher = mistier edges. */
    readonly uSoftness: number;
};
/**
 * The `clouds` shader's tunable uniforms. Drives the demo's generated control
 * panel. Defaults here are the "bright day" look; composites override them (the
 * wizard tower runs a sunset palette, the fairy cave a moonlit-night one).
 */
export declare const CLOUDS_CONTROLS: readonly UniformControl[];
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