import { ColorRepresentation, DirectionalLight, Object3D } from 'three';
import { Line2 } from 'three/examples/jsm/lines/Line2.js';
import { ALightHelperWidget } from './ALightHelperWidget';
import { IUiConfigContainer } from 'uiconfig.js';
import { LineMaterial2 } from '../../core';
export declare class DirectionalLightHelper2 extends ALightHelperWidget {
    color: ColorRepresentation | undefined;
    lightPlane: Line2;
    targetLine: Line2;
    light: (DirectionalLight & IUiConfigContainer) | undefined;
    material: LineMaterial2;
    lineWidth: number;
    size: number;
    constructor(light: DirectionalLight, size?: number, color?: ColorRepresentation);
    dispose(): void;
    private _v1;
    private _v2;
    private _v3;
    update(): void;
    static Check(light: Object3D): true;
    static Create(light: Object3D): DirectionalLightHelper2;
}
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