2
* Copyright 2011, Blender Foundation.
4
* This program is free software; you can redistribute it and/or
5
* modify it under the terms of the GNU General Public License
6
* as published by the Free Software Foundation; either version 2
7
* of the License, or (at your option) any later version.
9
* This program is distributed in the hope that it will be useful,
10
* but WITHOUT ANY WARRANTY; without even the implied warranty of
11
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12
* GNU General Public License for more details.
14
* You should have received a copy of the GNU General Public License
15
* along with this program; if not, write to the Free Software Foundation,
16
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
23
#include "COM_MixSoftLightOperation.h"
25
MixSoftLightOperation::MixSoftLightOperation() : MixBaseOperation()
30
void MixSoftLightOperation::executePixel(float output[4], float x, float y, PixelSampler sampler) \
36
this->m_inputValueOperation->read(&value, x, y, sampler);
37
this->m_inputColor1Operation->read(&inputColor1[0], x, y, sampler);
38
this->m_inputColor2Operation->read(&inputColor2[0], x, y, sampler);
40
if (this->useValueAlphaMultiply()) {
41
value *= inputColor2[3];
43
float valuem = 1.0f - value;
46
/* first calculate non-fac based Screen mix */
47
scr = 1.0f - (1.0f - inputColor2[0]) * (1.0f - inputColor1[0]);
48
scg = 1.0f - (1.0f - inputColor2[1]) * (1.0f - inputColor1[1]);
49
scb = 1.0f - (1.0f - inputColor2[2]) * (1.0f - inputColor1[2]);
51
output[0] = valuem * (inputColor1[0]) + value * (((1.0f - inputColor1[0]) * inputColor2[0] * (inputColor1[0])) + (inputColor1[0] * scr));
52
output[1] = valuem * (inputColor1[1]) + value * (((1.0f - inputColor1[1]) * inputColor2[1] * (inputColor1[1])) + (inputColor1[1] * scg));
53
output[2] = valuem * (inputColor1[2]) + value * (((1.0f - inputColor1[2]) * inputColor2[2] * (inputColor1[2])) + (inputColor1[2] * scb));
54
output[3] = inputColor1[3];
56
clampIfNeeded(output);