forked from bartvdbraak/blender
6d9720ef63
* Added a node to convert a temperature in Kelvin to an RGB color. This can be used e.g. for lights, to easily find the right color temperature. = Some common temperatures = Candle light: 1500 Kelvin Sunset/Sunrise: 1850 Kelvin Studio lamps: 3200 Kelvin Horizon daylight: 5000 Kelvin Documentation: http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/More#Blackbody Thanks to Philipp Oeser (lichtwerk), who essentially contributed to this with a patch! :) This is part of my GSoC 2013 project. SVN merge of r57424, r57487, r57507, r57525, r58253 and r58774
34 lines
1006 B
Plaintext
34 lines
1006 B
Plaintext
/*
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* Copyright 2013, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "stdosl.h"
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shader node_blackbody(
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float Temperature = 1200.0,
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output color Color = 0.0)
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{
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color rgb = blackbody(Temperature);
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/* Scale by luminance */
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float l = luminance(rgb);
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if (l != 0.0)
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rgb /= l;
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Color = rgb;
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}
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