export enum ConcretePrecisionType { Min , Max , Fixed , Texture } export enum TextureConcretePrecision { Texture2D = 100 , TextureCube = 101 } ; export enum PositionSpace { Object = 0 , View , World , Tangent , AbsoluteWorld } export enum NormalSpace { Object = 100 , View , World , Tangent } export enum ViewDirectionSpace { Object = 200 , View , World , Tangent } export const NormalMapSpace = 300 ;