import { d } from './index';

export type ToneMappingMode = 'linear' | 'reinhard' | 'cineon' | 'aces' | 'agx' | 'neutral' | 'hable' | 'unreal';
export declare const linear: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
export declare const reinhard: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
export declare const cineon: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
export declare const aces: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
export declare const agx: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
export declare const neutral: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
export declare const hable: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
export declare const unreal: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
/** Tone mapping curves keyed by ToneMappingMode. Selected at composition (part of pipeline hash). */
export declare const tonemapFns: {
    readonly linear: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
    readonly reinhard: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
    readonly cineon: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
    readonly aces: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
    readonly agx: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
    readonly neutral: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
    readonly hable: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
    readonly unreal: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
};
/**
 * Linear-sRGB → sRGB OETF. Applied at the very tail of the final pass, after tone mapping.
 * `mix(a, b, factor)` with a boolean factor is a per-channel select.
 */
export declare const linearToSrgb: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
/**
 * sRGB → linear-sRGB EOTF — the inverse of `linearToSrgb`. A texture sampled without a hardware
 * sRGB view (media textures written from an ImageBitmap/canvas, external video/webcam frames) comes
 * back gamma-encoded; the composition works in linear light and the final pass re-encodes with
 * `linearToSrgb`, so a media/external sample MUST be decoded here first or it renders washed-out.
 * Shared so ImageTexture/WebcamTexture/HTMLInCanvas use one decode. `select(hi, lo, isLow)` is the
 * per-channel branch on the 0.04045 threshold.
 */
export declare const srgbToLinear: import('typegpu').TgpuFn<(color: d.Vec3f) => d.Vec3f>;
//# sourceMappingURL=tonemap.d.ts.map