74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
/*
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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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* Copyright 2018, Blender Foundation.
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*/
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#include "COM_CryptomatteOperation.h"
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CryptomatteOperation::CryptomatteOperation(size_t num_inputs) : NodeOperation()
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{
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for (size_t i = 0; i < num_inputs; i++) {
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this->addInputSocket(COM_DT_COLOR);
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}
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inputs.resize(num_inputs);
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this->addOutputSocket(COM_DT_COLOR);
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this->setComplex(true);
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}
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void CryptomatteOperation::initExecution()
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{
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for (size_t i = 0; i < inputs.size(); i++) {
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inputs[i] = this->getInputSocketReader(i);
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}
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}
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void CryptomatteOperation::addObjectIndex(float objectIndex)
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{
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if (objectIndex != 0.0f) {
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m_objectIndex.push_back(objectIndex);
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}
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}
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void CryptomatteOperation::executePixel(float output[4],
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int x,
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int y,
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void *data)
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{
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float input[4];
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output[0] = output[1] = output[2] = output[3] = 0.0f;
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for (size_t i = 0; i < inputs.size(); i++) {
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inputs[i]->read(input, x, y, data);
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if (i == 0) {
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/* Write the frontmost object as false color for picking. */
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output[0] = input[0];
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uint32_t m3hash;
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::memcpy(&m3hash, &input[0], sizeof(uint32_t));
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/* Since the red channel is likely to be out of display range,
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* setting green and blue gives more meaningful images. */
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output[1] = ((float) ((m3hash << 8)) / (float) UINT32_MAX);
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output[2] = ((float) ((m3hash << 16)) / (float) UINT32_MAX);
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}
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for (size_t i = 0; i < m_objectIndex.size(); i++) {
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if (m_objectIndex[i] == input[0]) {
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output[3] += input[1];
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}
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if (m_objectIndex[i] == input[2]) {
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output[3] += input[3];
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}
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}
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}
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}
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