diff options
Diffstat (limited to 'intern/cycles/kernel/shaders/node_hsv.osl')
| -rw-r--r-- | intern/cycles/kernel/shaders/node_hsv.osl | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/intern/cycles/kernel/shaders/node_hsv.osl b/intern/cycles/kernel/shaders/node_hsv.osl new file mode 100644 index 00000000000..8fd7a1612e8 --- /dev/null +++ b/intern/cycles/kernel/shaders/node_hsv.osl @@ -0,0 +1,43 @@ +/* + * 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); + + // remember: fmod doesn't work for negative numbers + 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); +} + |