import * as THREE from 'three';
import { ShaderPass } from 'three/addons/postprocessing/ShaderPass.js';
/** Volumetric light-shaft pass with per-frame world-space light tracking and optional occlusion buffer. */
export interface GodRaysPass extends ShaderPass {
    updateFromLight(lightWorldPos: THREE.Vector3, camera: THREE.Camera): void;
    setOcclusionTexture(texture: THREE.Texture | null): void;
}
/** Create a GodRaysPass that ray-marches from each fragment toward the light's screen-space position, accumulating scattered brightness (GPU Gems 3 ch.13 algorithm). Pass the light world-space position each frame via updateFromLight. */
export declare function createGodRaysPass(): GodRaysPass;
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