import type { Scene } from 'three';
/**
 * Manages 3D sprite cursors for all remote peers.
 * Each peer gets a colored dot on the sphere at their camera orientation.
 * Positions are smoothly interpolated each frame via lerp.
 */
export declare class GazeCursorManager {
    private scene;
    private cursors;
    private colorIndex;
    constructor(scene: Scene);
    /** Add a cursor for a new peer */
    addPeer(userId: string, displayName: string): void;
    /** Remove a peer's cursor */
    removePeer(userId: string): void;
    /** Update the target gaze position for a peer */
    updateGaze(userId: string, lat: number, lon: number): void;
    /** Called each animation frame. Lerps all cursors toward their target positions. */
    update(): void;
    /** Get the number of tracked peers */
    getPeerCount(): number;
    /** Clean up all cursors */
    dispose(): void;
    /** Create a colored circle sprite for the cursor dot */
    private createCursorSprite;
    /** Create a text label sprite showing the peer's display name */
    private createLabelSprite;
}
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