import { Vector3D, Transform, TransformEvent } from '@awayjs/core';
import { DirectionalShadowMapper } from '../mappers/DirectionalShadowMapper';
import { LightBase } from './LightBase';
export declare class DirectionalLight extends LightBase {
    static assetType: string;
    private _direction;
    private _tmpLookAt;
    private _sceneDirection;
    private _sceneDirectionDirty;
    private _pAabbPoints;
    private _projAABBPoints;
    constructor(direction?: Vector3D, transform?: Transform);
    get assetType(): string;
    get sceneDirection(): Vector3D;
    get direction(): Vector3D;
    set direction(value: Vector3D);
    protected _onInvalidateConcatenatedMatrix3D(event: TransformEvent): void;
    private _updateSceneDirection;
    protected _createShadowMapper(): DirectionalShadowMapper;
}
//# sourceMappingURL=DirectionalLight.d.ts.map