blender/intern/cycles/kernel/osl/nodes/node_hsv.osl
Dalai Felinto 4fd2736487 HSV Color Node for Cycles
.........................
note, the OSL code has a problem.
In the original node the input and output nodes have the same name (Color).
So this will be fixed here once Brecht come up with a nice autorenaming (or we do a doversion patch) for that.
2011-12-02 16:57:37 +00:00

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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_color.h"
shader node_hsv(
float Hue = 0.5,
float Saturation = 1.0,
float Value = 1.0,
float Fac = 0.5,
color ColorIn = color(0.0, 0.0, 0.0),
output color ColorOut = color(0.0, 0.0, 0.0))
{
float t = clamp(Fac, 0.0, 1.0);
color Color = rgb_to_hsv(ColorIn);
Color[0] += Hue - 0.5;
Color[0] = fmod(Color[0], 1.0);
Color[1] *= Saturation;
Color[2] *= Value;
Color = hsv_to_rgb(Color);
ColorOut = mix(Color, ColorIn, t);
}