import { Quaternion, Vector3 } from "@babylonjs/core";
export declare const angleAxis: (theta: number, axis: Vector3) => Quaternion;
export declare const lookRotation: (target: Vector3, up?: Vector3) => Quaternion;
export declare const lookRotationToRef: (ref: Quaternion, target: Vector3, up?: Vector3) => void;
export declare const multiplyDirection: (quat: Quaternion, point: Vector3) => Vector3;
export declare const forward: (quat: Quaternion) => Vector3;
export declare const up: (quat: Quaternion) => Vector3;
export declare const right: (quat: Quaternion) => Vector3;
export declare const rotateParentSoChildEquals: (parent: Quaternion, child: Quaternion, target: Quaternion) => void;
export declare const worldToLocal: (parentWorldRot: Quaternion, worldRot: Quaternion, result?: Quaternion) => Quaternion;
export declare const localToWorld: (parentWorldRot: Quaternion, localRot: Quaternion, result?: Quaternion) => Quaternion;
export declare const polarXY: (quat: Quaternion) => {
    theta: number;
    radius: number;
};