import { ContextManager, Observable } from '@zcomponent/core';
import * as THREE from 'three';
import { Object3D } from '../Object3D';
export interface LightConstructorProps {
    /**
     * @zprop
     * @zdefault [1024, 1024]
     */
    shadowMapSize: [number, number];
}
/**
 * Base class for all lights.
 */
export declare class Light<T extends THREE.Light> extends Object3D {
    element: T;
    constructor(contextManager: ContextManager, props: LightConstructorProps, element: T);
    /**
     * Color of the light.
     * @zprop
     * @zgroup Light
     * @zgrouppriority 5
     * @zdefault [1, 1, 1]
     * @ztype color-norm-rgb-linear
     */
    color: Observable<[number, number, number], never>;
    /**
     * Numeric value of the light's strength/intensity. Default is 1
     * @zprop
     * @zgroup Light
     * @zgrouppriority 5
     * @zdefault 1
     */
    intensity: Observable<number, never>;
    /**
     * Normal bias for shadow mapping, useful for reducing shadow acne.
     * @zprop
     * @zgroup LightShadow
     * @zgrouppriority 10
     * @zdefault 0
     */
    normalBias: Observable<number, never>;
    /**
     * Radius to blur the edges of the shadow. High values may cause banding effects.
     * @zprop
     * @zgroup LightShadow
     * @zgrouppriority 10
     * @zdefault 1
     */
    radius: Observable<number, never>;
    /**
     * Bias for shadow mapping to reduce shadow artifacts.
     * @zprop
     * @zgroup LightShadow
     * @zgrouppriority 10
     * @zdefault 0
     */
    bias: Observable<number, never>;
    /**
     * The number of samples to use when blurring a VSM shadow map.
     * @zprop
     * @zgroup LightShadow
     * @zgrouppriority 10
     * @zdefault 8
     */
    blurSamples: Observable<number, never>;
    /**
     * Disposes the light and releases all resources.
     */
    dispose(): never;
}