diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_DotproductOperation.cc')
-rw-r--r-- | source/blender/compositor/operations/COM_DotproductOperation.cc | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_DotproductOperation.cc b/source/blender/compositor/operations/COM_DotproductOperation.cc new file mode 100644 index 00000000000..5914be21453 --- /dev/null +++ b/source/blender/compositor/operations/COM_DotproductOperation.cc @@ -0,0 +1,54 @@ +/* + * 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 2011, Blender Foundation. + */ + +#include "COM_DotproductOperation.h" + +DotproductOperation::DotproductOperation() +{ + this->addInputSocket(COM_DT_VECTOR); + this->addInputSocket(COM_DT_VECTOR); + this->addOutputSocket(COM_DT_VALUE); + this->setResolutionInputSocketIndex(0); + this->m_input1Operation = nullptr; + this->m_input2Operation = nullptr; +} +void DotproductOperation::initExecution() +{ + this->m_input1Operation = this->getInputSocketReader(0); + this->m_input2Operation = this->getInputSocketReader(1); +} + +void DotproductOperation::deinitExecution() +{ + this->m_input1Operation = nullptr; + this->m_input2Operation = nullptr; +} + +/** \todo current implementation is the inverse of a dot-product. not 'logically' correct + */ +void DotproductOperation::executePixelSampled(float output[4], + float x, + float y, + PixelSampler sampler) +{ + float input1[4]; + float input2[4]; + this->m_input1Operation->readSampled(input1, x, y, sampler); + this->m_input2Operation->readSampled(input2, x, y, sampler); + output[0] = -(input1[0] * input2[0] + input1[1] * input2[1] + input1[2] * input2[2]); +} |