import { Matrix4InOut, Vector3 as Vec3 } from './mat4';
/**
 * Set the components of a vec3 to the given values
 * @ignore
 * @param out the receiving vector
 * @param x X component
 * @param y Y component
 * @param z Z component
 * @returns out
 */
export declare function set(out: Vec3, x: number, y: number, z: number): Vec3;
/**
 * Adds two vec3's
 * @ignore
 * @param out the receiving vector
 * @param a the first operand
 * @param b the second operand
 * @returns out
 */
export declare function add(out: Vec3, a: Vec3, b: Vec3): Vec3;
/**
 * Subtracts vector b from vector a
 * @ignore
 * @param out the receiving vector
 * @param a the first operand
 * @param b the second operand
 * @returns out
 */
export declare function subtract(out: Vec3, a: Vec3, b: Vec3): Vec3;
export declare function sub(out: Vec3, a: Vec3, b: Vec3): Vec3;
export declare function copy(out: Vec3, a: Vec3): Vec3;
/**
 * Calculates the length of a vec3
 * @ignore
 * @param a vector to calculate length of
 * @returns length of a
 */
export declare function length(a: Vec3): number;
/**
 * Normalize a vec3
 * @ignore
 * @param out the receiving vector
 * @param a vector to normalize
 * @returns out
 */
export declare function normalize(out: Vec3, a: Vec3): Vec3;
/**
 * Calculates the dot product of two vec3's
 * @ignore
 * @param a the first operand
 * @param b the second operand
 * @returns dot product of a and b
 */
export declare function dot(a: Vec3, b: Vec3): number;
/**
 * Scales a vec3 by a scalar number
 * @ignore
 * @param out the receiving vector
 * @param a the vector to scale
 * @param b amount to scale the vector by
 * @returns out
 */
export declare function scale(out: Vec3, a: Vec3, b: number): Vec3;
/**
 * Computes the cross product of two vec3's
 * @ignore
 * @param out the receiving vector
 * @param a the first operand
 * @param b the second operand
 * @returns out
 */
export declare function cross(out: Vec3, a: Vec3, b: Vec3): Vec3;
/**
 * Calculates the euclidian distance between two vec3's
 * @ignore
 * @param a the first operand
 * @param b the second operand
 * @returns distance between a and b
 */
export declare function distance(a: Vec3, b: Vec3): number;
/**
 * Transforms the vec3 with a mat4.
 * 4th vector component is implicitly '1'
 * @ignore
 * @param out the receiving vector
 * @param a the vector to transform
 * @param m matrix to transform with
 * @returns out
 */
export declare function transformMat4(out: Vec3, a: Vec3, m: Matrix4InOut): Vec3;
export declare function angle(a: Vec3, b: Vec3): number;
//# sourceMappingURL=vec3.d.ts.map