import { Component, ContextManager, Observable } from '@zcomponent/core';
export declare enum ToneMapping {
    NoToneMapping = "none",
    LinearToneMapping = "linear",
    ReinhardToneMapping = "reinhard",
    CineonToneMapping = "cineon",
    ACESFilmicToneMapping = "acesfilmic",
    CustomToneMapping = "custom"
}
export interface RenderSettingsConstructorProps {
    /**
     * When enabled, injects percent closer soft shadows (PCSS) into three's shader chunk.
     *
     * Toggling this property will lead to all shaders being be re-compiled.
     * @zprop
     * @zdefault false
     * @zgroup SoftShadows
     * @zgrouppriority 30
     */
    softShadows?: boolean;
    /**
     * Size of the light source (the larger the softer the light).
     * @zprop
     * @zdefault 25
     * @zgroup SoftShadows
     * @zgrouppriority 30
     */
    shadowSize?: number;
    /**
     * Depth focus, use it to shift the focal point (where the shadow is the sharpest).
     *
     * This must be an integer value, decimals will be rounded to the nearest integer.
     * @zprop
     * @zdefault 10
     * @zgroup SoftShadows
     * @zgrouppriority 30
     */
    shadowSamples?: number;
    /**
     * Observable property to set the focus depth for soft shadows.
     * @zprop
     * @zdefault 0
     * @zgroup SoftShadows
     * @zgrouppriority 30
     */
    shadowFocus?: number;
}
/**
 *
 * Manages render settings for a 3D scene, allowing configuration of various rendering properties such as tone mapping,
 * object sorting, and light settings. This component interfaces with the `ThreeContext` to apply changes to the WebGLRenderer.
 *
 *
 * @zcomponent
 * @ztag three/RenderSettings
 * @zicon settings
 * @zgroup Advanced
 * @zparents three/Object3D/Group/**
 */
export declare class RenderSettings extends Component {
    private _context;
    private _softShadows;
    /**
     *
     * Observable property to toggle the use of legacy lighting models. When set, updates the lighting configuration in the current rendering context.
     *
     * @zprop
     * @zdefault false
     * @zgroup RenderSettings
     * @zgrouppriority 20
     */
    useLegacyLights: Observable<boolean, never>;
    /**
     * Observable property to control the sorting of objects in the scene. Sorting affects the rendering order of objects.
     * @zprop
     * @zdefault true
     * @zgroup RenderSettings
     * @zgrouppriority 20
     */
    sortObjects: Observable<boolean, never>;
    /**
     * Observable property to select the tone mapping technique used in the renderer. Supports various standard tone mapping methods.
     * @zprop
     * @zdefault acesfilmic
     * @zgroup RenderSettings
     * @zgrouppriority 20
     */
    toneMapping: Observable<ToneMapping, never>;
    /**
     * Observable property to adjust the exposure level used in tone mapping.
     * @zprop
     * @zdefault 1
     * @zgroup RenderSettings
     * @zgrouppriority 20
     */
    toneMappingExposure: Observable<number, never>;
    constructor(contextManager: ContextManager, props: RenderSettingsConstructorProps);
    private _reset;
    dispose: () => never;
}