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/*
* 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"
/* Voronoi */
shader node_voronoi_texture(
string Coloring = "Intensity",
float Scale = 5.0,
point Vector = P,
output float Fac = 0.0,
output color Color = color(0.0, 0.0, 0.0))
{
/* compute distance and point coordinate of 4 nearest neighbours */
float da[4];
point pa[4];
voronoi(Vector * Scale, "Distance Squared", 1.0, da, pa);
/* Colored output */
if (Coloring == "Intensity") {
Fac = fabs(da[0]);
Color = color(Fac);
}
else {
Color = cellnoise_color(pa[0]);
Fac = (Color[0] + Color[1] + Color[2]) * (1.0 / 3.0);
}
}
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