/**
 * Constant used to convert a value to gamma space
 */
export declare const ToGammaSpace: number;
/**
 * Constant used to convert a value to linear space
 */
export declare const ToLinearSpace = 2.2;
/**
 * Constant Golden Ratio value in Babylon.js
 */
export declare const PHI: number;
/**
 * Constant used to define the minimal number value in Babylon.js
 * Exported as "let" so advanced users can override the epsilon value in supported build targets (for example via the global BABYLON.Epsilon)
 * @ignorenaming
 */
export declare let Epsilon: number;