forked from bartvdbraak/blender
2a6fdbcccd
Node specially useful for Texture correction. This is also a nice example of a simple node made from scratch in case someone wants to create their custom nodes. Review by Brecht.
34 lines
1.0 KiB
Plaintext
34 lines
1.0 KiB
Plaintext
/*
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* Copyright 2011, 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_gamma(
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color ColorIn = color(0.8, 0.8, 0.8),
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float Gamma = 1.0,
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output ColorOut = color(0.8, 0.8, 0.8)
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{
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int i;
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for (i=0;i<3;i++) {
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if (ColorIn[i] > 0.0)
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ColorIn[i] = powf(ColorIn[i], Gamma);
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}
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ColorOut = ColorIn;
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}
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