import type { Node } from "../core/Node.ts";
import { Light } from "./Light.ts";
/**
 * Per-face or per-vertex depending on material shading mode.
 * Position determines direction when target is undefined.
 * When target is set, direction is computed as normalize(target world pos - light world pos).
 * No shadow support.
 */
export declare class DirectionalLight extends Light {
    type: string;
    lightType: number;
    /**
     * Optional target node. When set, overrides position-based direction.
     * Direction becomes normalize(target.matrixWorld position - this.matrixWorld position).
     */
    target: Node | undefined;
    constructor(color?: number | string, intensity?: number);
}
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