/**
 * ColorGrading.ts
 *
 * Color grading: tonemapping operators, exposure, contrast,
 * saturation, color temperature, LUT, and split toning.
 *
 * @module rendering
 */
export type TonemapOperator = 'none' | 'reinhard' | 'aces' | 'filmic' | 'uncharted2';
export interface ColorGradingConfig {
    tonemapper: TonemapOperator;
    exposure: number;
    contrast: number;
    saturation: number;
    temperature: number;
    tint: number;
    gamma: number;
    enabled: boolean;
}
export declare class ColorGrading {
    private config;
    setTonemapper(op: TonemapOperator): void;
    setExposure(ev: number): void;
    setContrast(val: number): void;
    setSaturation(val: number): void;
    setTemperature(val: number): void;
    setTint(val: number): void;
    setGamma(val: number): void;
    setEnabled(val: boolean): void;
    getConfig(): ColorGradingConfig;
    tonemap(r: number, g: number, b: number): [number, number, number];
    private tonemapACES;
    private tonemapFilmic;
    private tonemapUncharted2;
    adjustExposure(r: number, g: number, b: number): [number, number, number];
    adjustContrast(r: number, g: number, b: number): [number, number, number];
    adjustSaturation(r: number, g: number, b: number): [number, number, number];
    adjustGamma(r: number, g: number, b: number): [number, number, number];
    apply(pixels: Float32Array, _width: number, _height: number): Float32Array;
}
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