/*
 * Copyright 2011, Blender Foundation.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#include "stdosl.h"
#include "node_texture.h"

/* Stucci */

shader node_stucci_texture(
	string Type = "Plastic",
	string Basis = "Perlin",
	int Hard = 0,
	float Turbulence = 1.0,
	float Size = 0.25,
	point Vector = P,
	output float Fac = 0.0)
{
	float size = nonzero(Size, 1e-5);
	point p = Vector/size;

	float b2 = noise_basis_hard(p, Basis, Hard);
	float ofs = Turbulence/200.0;

	if(Type != "Plastic")
		ofs *= b2*b2;
	
	Fac = noise_basis_hard(point(p[0], p[1], p[2]+ofs), Basis, Hard);

	if(Type == "Wall Out")
		Fac = 1.0 - Fac;
	
	Fac = max(Fac, 0.0);
}