95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
/*
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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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* Contributor:
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* Jeroen Bakker
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* Monique Dewanchand
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*/
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#include "COM_ZCombineOperation.h"
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#include "BLI_utildefines.h"
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ZCombineOperation::ZCombineOperation() : NodeOperation()
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{
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this->addInputSocket(COM_DT_COLOR);
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this->addInputSocket(COM_DT_VALUE);
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this->addInputSocket(COM_DT_COLOR);
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this->addInputSocket(COM_DT_VALUE);
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this->addOutputSocket(COM_DT_COLOR);
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this->m_image1Reader = NULL;
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this->m_depth1Reader = NULL;
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this->m_image2Reader = NULL;
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this->m_depth2Reader = NULL;
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}
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void ZCombineOperation::initExecution()
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{
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this->m_image1Reader = this->getInputSocketReader(0);
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this->m_depth1Reader = this->getInputSocketReader(1);
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this->m_image2Reader = this->getInputSocketReader(2);
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this->m_depth2Reader = this->getInputSocketReader(3);
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}
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void ZCombineOperation::executePixel(float *color, float x, float y, PixelSampler sampler)
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{
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float depth1[4];
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float depth2[4];
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this->m_depth1Reader->read(depth1, x, y, sampler);
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this->m_depth2Reader->read(depth2, x, y, sampler);
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if (depth1[0] < depth2[0]) {
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this->m_image1Reader->read(color, x, y, sampler);
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}
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else {
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this->m_image2Reader->read(color, x, y, sampler);
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}
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}
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void ZCombineAlphaOperation::executePixel(float *color, float x, float y, PixelSampler sampler)
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{
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float depth1[4];
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float depth2[4];
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float color1[4];
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float color2[4];
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this->m_depth1Reader->read(depth1, x, y, sampler);
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this->m_depth2Reader->read(depth2, x, y, sampler);
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if (depth1[0] < depth2[0]) {
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this->m_image1Reader->read(color1, x, y, sampler);
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this->m_image2Reader->read(color2, x, y, sampler);
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}
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else {
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this->m_image1Reader->read(color2, x, y, sampler);
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this->m_image2Reader->read(color1, x, y, sampler);
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}
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float fac = color1[3];
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float ifac = 1.0f - fac;
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color[0] = color1[0] + ifac * color2[0];
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color[1] = color1[1] + ifac * color2[1];
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color[2] = color1[2] + ifac * color2[2];
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color[3] = MAX2(color1[3], color2[3]);
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}
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void ZCombineOperation::deinitExecution()
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{
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this->m_image1Reader = NULL;
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this->m_depth1Reader = NULL;
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this->m_image2Reader = NULL;
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this->m_depth2Reader = NULL;
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}
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