/*!
 * Copyright (c) Microsoft Corporation.
 * Licensed under the MIT License.
 */
import { mat3, mat4, quat, vec2, vec3, vec4 } from "gl-matrix";
export declare class Constants {
    static readonly TWO_PI = 6.283185307179586;
    static readonly PI = 3.141592653589793;
    static readonly PI_OVER_TWO = 1.5707963267948966;
    static readonly PI_OVER_THREE = 1.0471975511965976;
    static readonly PI_OVER_FOUR = 0.7853981633974483;
    static readonly PI_OVER_SIX = 0.5235987755982988;
    static readonly LOG_2 = 0.6931471805599453;
    static readonly RADIANS_PER_DEGREE = 0.017453292519943295;
    static readonly DEGREES_PER_RADIAN = 57.29577951308232;
    static readonly ROOT_TWO = 1.4142135623730951;
    static readonly ROOT_TWO_OVER_TWO = 0.7071067811865476;
    static readonly ROOT_THREE = 1.7320508075688772;
    static readonly ROOT_THREE_OVER_TWO = 0.8660254037844386;
    static readonly ROOT_THREE_OVER_THREE = 0.5773502691896257;
    static readonly VECTOR2_ZERO: vec2;
    static readonly VECTOR2_ONE: vec2;
    static readonly VECTOR2_UNITX: vec2;
    static readonly VECTOR2_UNITY: vec2;
    static readonly VECTOR3_ZERO: vec3;
    static readonly VECTOR3_ONE: vec3;
    static readonly VECTOR3_UNITX: vec3;
    static readonly VECTOR3_UNITY: vec3;
    static readonly VECTOR3_UNITZ: vec3;
    static readonly VECTOR3_REFLECTX: vec3;
    static readonly VECTOR3_REFLECTY: vec3;
    static readonly VECTOR3_REFLECTZ: vec3;
    static readonly VECTOR4_ZERO: vec4;
    static readonly VECTOR4_ONE: vec4;
    static readonly VECTOR4_UNITX: vec4;
    static readonly VECTOR4_UNITY: vec4;
    static readonly VECTOR4_UNITZ: vec4;
    static readonly VECTOR4_UNITW: vec4;
    static readonly MAT3_IDENTITY: mat3;
    static readonly MAT4_IDENTITY: mat4;
    static readonly MAT4_ROTATION_MINUS_90: mat4;
    static readonly QUAT_IDENTITY: quat;
    static readonly QUAT_ROTATEX_PLUS_90: vec4;
    static readonly QUAT_ROTATEX_MINUS_90: vec4;
    static readonly QUAT_ROTATEY_PLUS_90: vec4;
    static readonly QUAT_ROTATEY_MINUS_90: vec4;
    static readonly QUAT_ROTATEZ_PLUS_90: vec4;
    static readonly QUAT_ROTATEZ_MINUS_90: vec4;
    static readonly MILLISECONDS_PER_DAY = 86400000;
}