import { Mesh } from 'three';
import type { PerspectiveCamera, Texture } from 'three';
import type { StereoMode } from '@vizor-vr/shared';
import type { IProjection } from './projection.js';
/**
 * True VR180 "spherical" projection (WS-F): one circular fisheye image per
 * eye, optical axis forward, covering the capture lens angle (default 180°,
 * supported 120–250°). This replaces the old silent equirect fallback that
 * rendered real VR180-camera footage with wrong geometry.
 *
 * Texture layouts mirror the fisheye projection's stereo handling:
 *   mono — the full texture is one fisheye circle
 *   sbs  — left eye in the left half, right eye in the right half
 *   tb   — left eye in the TOP half, right eye in the bottom half
 */
export declare class SphericalProjection implements IProjection {
    private meshes;
    private readonly lensFovRad;
    constructor(lensAngleDeg?: number);
    createMeshes(texture: Texture, stereoMode: StereoMode): Mesh[];
    configureCamera(camera: PerspectiveCamera): void;
    update(_camera: PerspectiveCamera, _time: number): void;
    dispose(): void;
    private createSphere;
}
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