import { MetalFxInstance } from '../renderer/core';
import { ReflectionTarget } from './constants';
export type { ReflectionTarget } from './constants';
export interface ReflectionOccluderConfig {
    enabled: boolean;
    /** Occluder radius, CSS px — how "big" the cursor is as a light blocker. */
    radius: number;
    /** Peak shadow depth (0..1) with the pointer right at the target's edge. */
    strength: number;
    /** Penumbra growth: band half-height multiplier at the anchor's edge. */
    penumbra: number;
    /** How much depth is lost as the pointer moves from target edge (0) to
     *  anchor edge (1). 0 = same shadow everywhere in the gap. */
    falloff: number;
    /** Fade-in distance at the gap's ends, as a multiple of `radius`. */
    edgeFade: number;
    /** Band profile. 1 = smooth triangle, 0 = hard-edged plateau. */
    softness: number;
    /** Repaint throttle while the pointer moves, ms. */
    repaintMs: number;
}
export declare const REFLECTION_OCCLUDER_DEFAULTS: Readonly<ReflectionOccluderConfig>;
export declare const REFLECTION_OCCLUDER: ReflectionOccluderConfig;
export declare function setReflectionOccluderConfig(patch: Partial<ReflectionOccluderConfig>): void;
export declare function resetReflectionOccluderConfig(): void;
export declare function addReflectionTarget(el: HTMLElement, anchor: MetalFxInstance, anchorEl: HTMLElement, strength?: number): ReflectionTarget | null;
export declare function removeReflectionTarget(el: HTMLElement): void;
export declare function paintReflections(): void;