import type { RGB } from '../../../src/lib/primitives.types';
import type { UniformControl } from '../_shared/types';
/** Typed uniforms for the `outrun-grid` layer shader. */
export type OutrunGridUniforms = {
    /** Sky gradient color at the top of frame. */
    readonly uSkyTop: RGB;
    /** Sky gradient color at the horizon. */
    readonly uSkyHorizon: RGB;
    /** Sun gradient color at its top. */
    readonly uSunTop: RGB;
    /** Sun gradient color at its bottom. */
    readonly uSunBottom: RGB;
    /** Neon grid line tint (also the horizon seam). */
    readonly uGridColor: RGB;
    /** Grid cells across the floor; higher is finer. */
    readonly uGridDensity: number;
    /** Line glow width/softness, 0..1. */
    readonly uGridGlow: number;
    /** Grid scroll rate toward the viewer; 0 freezes. */
    readonly uSpeed: number;
    /** Sun radius in vUv.y units. */
    readonly uSunSize: number;
    /** Horizontal slit count cut into the sun's lower half. */
    readonly uSunBands: number;
    /** Horizon height in vUv.y, 0..1 (floor below, sky above). */
    readonly uHorizon: number;
    /** Eases the additive glow at frame center (the face zone); 0 = off. */
    readonly uCalm: number;
};
/** The `outrun-grid` shader's tunables; defaults are the "classic" synthwave look. */
export declare const OUTRUN_GRID_CONTROLS: readonly UniformControl[];
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