import type * as THREE from 'three';
import type { Disposable } from '../types.js';
/** Render mode for stereoscopic 3D: anaglyph (red/cyan), side-by-side stereo, or off (passthrough). */
export type StereoMode = 'anaglyph' | 'stereo' | 'off';
/** Renderer wrapper for anaglyph or side-by-side stereo output. Both bypass EffectComposer. */
export interface StereoRenderer extends Disposable {
    mode: StereoMode;
    render(scene: THREE.Scene, camera: THREE.Camera): void;
    setSize(w: number, h: number): void;
}
/** Optional size override for the stereo effect render target. */
export interface StereoSizeOptions {
    width?: number;
    height?: number;
}
/** Create a StereoRenderer for the given mode. AnaglyphEffect for red/cyan glasses, StereoEffect for cardboard-style side-by-side. */
export declare function createStereoRenderer(renderer: THREE.WebGLRenderer, mode: StereoMode, { width, height }?: StereoSizeOptions): StereoRenderer;
//# sourceMappingURL=stereoscopy.d.ts.map