/* ****************************************************************
 *                            D.h
 * ****************************************************************
 * include file for the microfacet distribution functions
 */
#ifndef D_H
#define D_H

/* Microfacet distribution routines
 */
double D_phong_init();
double D_phong();
double D_blinn_init();
double D_blinn();
double D_gaussian_init();
double D_gaussian();
double D_reitz_init();
double D_reitz();
double D_cook_init();
double D_cook();
double D_g();
double D_tau();
double D_sigma();
double D_m();
double D_coherent();
double D_incoherent();
double D_Vxz();

#endif D_H
/* ************************************************************* */