import type { Vector3 } from '@holoscript/core';
/**
 * LightingModel.ts
 *
 * Lighting: directional/point/spot lights, shadow maps,
 * ambient/IBL, GI probes, and light culling.
 *
 * @module rendering
 */
export type LightType = 'directional' | 'point' | 'spot';
export interface Light {
    id: string;
    type: LightType;
    color: [number, number, number];
    intensity: number;
    position: [number, number, number];
    direction: Vector3;
    range: number;
    spotAngle: number;
    spotPenumbra: number;
    castShadow: boolean;
    shadowBias: number;
    shadowMapSize: number;
    enabled: boolean;
    layer: number;
}
export interface AmbientConfig {
    color: [number, number, number];
    intensity: number;
    skyColor: [number, number, number];
    groundColor: [number, number, number];
    useHemisphere: boolean;
}
export interface GIProbe {
    id: string;
    position: [number, number, number];
    radius: number;
    irradiance: [number, number, number];
    weight: number;
}
export declare class LightingModel {
    private lights;
    private ambient;
    private probes;
    private maxLights;
    addLight(config: Partial<Light> & {
        id: string;
        type: LightType;
    }): Light;
    removeLight(id: string): void;
    getLight(id: string): Light | undefined;
    getLightCount(): number;
    enableLight(id: string, enabled: boolean): void;
    setAmbient(config: Partial<AmbientConfig>): void;
    getAmbient(): AmbientConfig;
    addGIProbe(probe: GIProbe): void;
    removeGIProbe(id: string): void;
    sampleGI(position: [number, number, number]): [number, number, number];
    calculateAttenuation(lightId: string, worldPos: Vector3 | {
        x: number;
        y: number;
        z: number;
    }): number;
    getVisibleLights(cameraPos: Vector3, maxRange: number, layerMask?: number): Light[];
    getShadowCasters(): Light[];
}
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