import { Color, Fog as Fog3 } from "three";
import { Behaviour } from "./Component.js";
/**
 * Fog rendering mode
 */
declare enum FogMode {
    /** Linear fog increases uniformly with distance */
    Linear = 1,
    /** Exponential fog increases exponentially with distance */
    Exponential = 2,
    /** Exponential squared fog for denser falloff */
    ExponentialSquared = 3
}
/**
 * Adds distance-based fog effect to the scene.
 * When enabled, objects will fade into the fog color based on their distance from the camera.
 *
 * This component is automatically added to the scene when fog is enabled in the editor.
 * For setting fog from code you can simply use `scene.fog = new Fog3(color, near, far)` without adding this component.
 *
 * @summary Adds fog effect to the scene
 * @category Rendering
 * @group Components
 * @link https://threejs.org/docs/#Fog
 */
export declare class Fog extends Behaviour {
    /**
     * The underlying Three.js Fog object. You can modify its properties directly for more advanced control.
     * @remarks The Fog component provides convenient access to common fog properties like `near`, `far`, and `color`. Modifying those will update the underlying `fog` object accordingly. However, you can also access and modify the `fog` object directly for more advanced use cases, such as changing the fog mode or using a custom shader.
     * @link https://threejs.org/docs/#Fog for available properties and methods on the Fog object.
     */
    get fog(): Fog3;
    get mode(): FogMode;
    set near(value: number);
    get near(): number;
    set far(value: number);
    get far(): number;
    set color(value: Color);
    get color(): Color;
    private _fog?;
    onEnable(): void;
    onDisable(): void;
}
export {};