import { mat3, mat4 } from 'gl-matrix';
export declare function composite(scales: number[], matrices: Float32Array[]): Float32Array;
export declare enum CameraMode {
    GNOMONIC = "GNOMONIC",
    STEROGRAPHIC = "STEREOGRAPHIC",
    FLOATING_EYE = "FLOATING_EYE"
}
export interface ICameraParams {
    aspectRatio: number;
    fovy: number;
    mode: CameraMode;
    theta: number;
    phi: number;
    roll: number;
    za: number;
    zd: number;
    zp: number;
}
export declare function zenith3(a: number, d: number, p: number): mat3;
export declare function izenith3(a: number, d: number, p: number): mat3;
export declare function normalizeZenith(a: number, d: number, z: number): number[];
export declare function cameraMatrix(p: ICameraParams): mat4;