export type Mat4 = Float32Array;
export type Vec3A = [number, number, number];
export interface Vec2 {
    x: number;
    y: number;
}
export interface Vec3 extends Vec2 {
    z: number;
}
export interface Vec4 extends Vec3 {
    w: number;
}
/** Returns an identity matrix */
export declare function mat4(): Mat4;
/** Transforms to an identity matrix */
export declare function mat4i(m: Mat4, out?: Float32Array): Mat4;
/** Prints the matrix in a readable format to the console */
export declare function mat4log(m: Mat4): void;
/** Translates matrix by a vector (object) */
export declare function mat4tv(m: Mat4, v: Partial<Vec3>, out?: Float32Array): Mat4;
/** Translates the matrix by a vector (relative) */
export declare function mat4t(m: Mat4, t: Partial<Vec3A>, out?: Float32Array): Mat4;
/** decomposes a matrix into its components */
export declare function mat4dec(m: Mat4, p: Vec3, s: Vec3, r: Vec3, q: Vec4): void;
/** inverses the matrix */
export declare function mat4inv(m: Mat4, out?: Float32Array): Mat4;
/** multiply two matrices and output the transformed one */
export declare function mat4m(m1: Mat4, m2: Mat4, out?: Float32Array): Mat4;
/** euler to quaternion */
export declare function etq(r: Vec3, q: Vec4): Vec4;
/** mat4 scale, rotate (quaternion) and translate */
export declare function mat4srqt(m: Mat4, s: Vec3, q: Vec4, t: Vec3, out?: Float32Array): Mat4;
export declare function mat4ToQuat(m: Mat4, out: Vec4): void;
export declare function quatToEuler(q: Vec4, out: Vec3): void;
/**
 * Creates a perspective projection matrix.
 *
 * https://github.com/toji/gl-matrix/blob/master/src/mat4.js#L1537-L1563
 */
export declare function mat4p(fovY: number, asp: number, near: number, far?: number, out?: Float32Array): Float32Array;
/**
 * Creates a perspective projection matrix.
 *
 * https://github.com/toji/gl-matrix/blob/master/src/mat4.js#L1664C2-L1686C1
 */
export declare function mat4o(left: number, right: number, bottom: number, top: number, near: number, far: number, out?: Mat4): Float32Array;