import { Vector4 } from "../../type_definitions/array_type_definitions.js";
import { EasingFunction } from "../math_utils.js";
export declare function create(): Vector4;
export declare function create(x: number, y: number, z: number, w: number): Vector4;
export declare function create(uniformValue: number): Vector4;
export declare function getAllocationFunction(): () => Vector4;
/** Specify the function that will be used to allocate the vector when calling the {@link create} function */
export declare function setAllocationFunction(allocationFunction: () => Vector4): void;
export declare function set<T extends Vector4>(vector: T, x: number, y: number, z: number, w: number): T;
export declare function set<T extends Vector4>(vector: T, uniformValue: number): T;
export declare function copy<T extends Vector4>(from: Readonly<Vector4>, to: T): T;
/** The overload where `T extends Vector4` does also get `array` as `Readonly<T>`, but is not marked as such due to
    Typescript having issues with inferring the proper type of `T` when `Readonly` is used */
export declare function clone<T extends Vector4>(vector: Readonly<T>): T;
export declare function clone(vector: Readonly<number[]>): number[];
export declare function clone<T extends Vector4>(vector: T): T;
export declare function equals(first: Readonly<Vector4>, second: Readonly<Vector4>, epsilon?: number): boolean;
export declare function lerp<T extends Vector4>(from: Readonly<T>, to: Readonly<Vector4>, interpolationFactor: number): T;
export declare function lerp<T extends Vector4>(from: Readonly<Vector4>, to: Readonly<Vector4>, interpolationFactor: number, out: T): T;
export declare function interpolate<T extends Vector4>(from: Readonly<T>, to: Readonly<Vector4>, interpolationFactor: number, easingFunction?: EasingFunction): T;
export declare function interpolate<T extends Vector4>(from: Readonly<Vector4>, to: Readonly<Vector4>, interpolationFactor: number, easingFunction: EasingFunction, out: T): T;
export declare const Vec4Utils: {
    readonly create: typeof create;
    readonly getAllocationFunction: typeof getAllocationFunction;
    readonly setAllocationFunction: typeof setAllocationFunction;
    readonly set: typeof set;
    readonly copy: typeof copy;
    readonly clone: typeof clone;
    readonly equals: typeof equals;
    readonly lerp: typeof lerp;
    readonly interpolate: typeof interpolate;
};