diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_CryptomatteOperation.cc')
-rw-r--r-- | source/blender/compositor/operations/COM_CryptomatteOperation.cc | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_CryptomatteOperation.cc b/source/blender/compositor/operations/COM_CryptomatteOperation.cc new file mode 100644 index 00000000000..ccd291697cf --- /dev/null +++ b/source/blender/compositor/operations/COM_CryptomatteOperation.cc @@ -0,0 +1,70 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Copyright 2018, Blender Foundation. + */ + +#include "COM_CryptomatteOperation.h" + +CryptomatteOperation::CryptomatteOperation(size_t num_inputs) +{ + for (size_t i = 0; i < num_inputs; i++) { + this->addInputSocket(COM_DT_COLOR); + } + inputs.resize(num_inputs); + this->addOutputSocket(COM_DT_COLOR); + this->setComplex(true); +} + +void CryptomatteOperation::initExecution() +{ + for (size_t i = 0; i < inputs.size(); i++) { + inputs[i] = this->getInputSocketReader(i); + } +} + +void CryptomatteOperation::addObjectIndex(float objectIndex) +{ + if (objectIndex != 0.0f) { + m_objectIndex.push_back(objectIndex); + } +} + +void CryptomatteOperation::executePixel(float output[4], int x, int y, void *data) +{ + float input[4]; + output[0] = output[1] = output[2] = output[3] = 0.0f; + for (size_t i = 0; i < inputs.size(); i++) { + inputs[i]->read(input, x, y, data); + if (i == 0) { + /* Write the front-most object as false color for picking. */ + output[0] = input[0]; + uint32_t m3hash; + ::memcpy(&m3hash, &input[0], sizeof(uint32_t)); + /* Since the red channel is likely to be out of display range, + * setting green and blue gives more meaningful images. */ + output[1] = ((float)((m3hash << 8)) / (float)UINT32_MAX); + output[2] = ((float)((m3hash << 16)) / (float)UINT32_MAX); + } + for (size_t i = 0; i < m_objectIndex.size(); i++) { + if (m_objectIndex[i] == input[0]) { + output[3] += input[1]; + } + if (m_objectIndex[i] == input[2]) { + output[3] += input[3]; + } + } + } +} |