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/*
* 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_ZCombineNode.h"
#include "COM_ZCombineOperation.h"
#include "COM_AntiAliasOperation.h"
#include "COM_ExecutionSystem.h"
#include "COM_MathBaseOperation.h"
#include "COM_MixOperation.h"
#include "COM_SetValueOperation.h"
#include "DNA_material_types.h" /* the ramp types */
void ZCombineNode::convertToOperations(NodeConverter &converter,
const CompositorContext &context) const
{
if ((context.getRenderData()->scemode & R_FULL_SAMPLE) || this->getbNode()->custom2) {
ZCombineOperation *operation = nullptr;
if (this->getbNode()->custom1) {
operation = new ZCombineAlphaOperation();
}
else {
operation = new ZCombineOperation();
}
converter.addOperation(operation);
converter.mapInputSocket(getInputSocket(0), operation->getInputSocket(0));
converter.mapInputSocket(getInputSocket(1), operation->getInputSocket(1));
converter.mapInputSocket(getInputSocket(2), operation->getInputSocket(2));
converter.mapInputSocket(getInputSocket(3), operation->getInputSocket(3));
converter.mapOutputSocket(getOutputSocket(0), operation->getOutputSocket());
MathMinimumOperation *zoperation = new MathMinimumOperation();
converter.addOperation(zoperation);
converter.mapInputSocket(getInputSocket(1), zoperation->getInputSocket(0));
converter.mapInputSocket(getInputSocket(3), zoperation->getInputSocket(1));
converter.mapOutputSocket(getOutputSocket(1), zoperation->getOutputSocket());
}
else {
/* XXX custom1 is "use_alpha", what on earth is this supposed to do here?!? */
// not full anti alias, use masking for Z combine. be aware it uses anti aliasing.
// step 1 create mask
NodeOperation *maskoperation;
if (this->getbNode()->custom1) {
maskoperation = new MathGreaterThanOperation();
converter.addOperation(maskoperation);
converter.mapInputSocket(getInputSocket(1), maskoperation->getInputSocket(0));
converter.mapInputSocket(getInputSocket(3), maskoperation->getInputSocket(1));
}
else {
maskoperation = new MathLessThanOperation();
converter.addOperation(maskoperation);
converter.mapInputSocket(getInputSocket(1), maskoperation->getInputSocket(0));
converter.mapInputSocket(getInputSocket(3), maskoperation->getInputSocket(1));
}
// step 2 anti alias mask bit of an expensive operation, but does the trick
AntiAliasOperation *antialiasoperation = new AntiAliasOperation();
converter.addOperation(antialiasoperation);
converter.addLink(maskoperation->getOutputSocket(), antialiasoperation->getInputSocket(0));
// use mask to blend between the input colors.
ZCombineMaskOperation *zcombineoperation = this->getbNode()->custom1 ?
new ZCombineMaskAlphaOperation() :
new ZCombineMaskOperation();
converter.addOperation(zcombineoperation);
converter.addLink(antialiasoperation->getOutputSocket(), zcombineoperation->getInputSocket(0));
converter.mapInputSocket(getInputSocket(0), zcombineoperation->getInputSocket(1));
converter.mapInputSocket(getInputSocket(2), zcombineoperation->getInputSocket(2));
converter.mapOutputSocket(getOutputSocket(0), zcombineoperation->getOutputSocket());
MathMinimumOperation *zoperation = new MathMinimumOperation();
converter.addOperation(zoperation);
converter.mapInputSocket(getInputSocket(1), zoperation->getInputSocket(0));
converter.mapInputSocket(getInputSocket(3), zoperation->getInputSocket(1));
converter.mapOutputSocket(getOutputSocket(1), zoperation->getOutputSocket());
}
}
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