COM_DefocusNode.cc

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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_DefocusNode.h"
#include "COM_BokehImageOperation.h"
#include "COM_ConvertDepthToRadiusOperation.h"
#include "COM_ExecutionSystem.h"
#include "COM_FastGaussianBlurOperation.h"
#include "COM_GammaCorrectOperation.h"
#include "COM_MathBaseOperation.h"
#include "COM_SetValueOperation.h"
#include "COM_VariableSizeBokehBlurOperation.h"
#include "DNA_camera_types.h"
#include "DNA_node_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
 
namespace blender::compositor {
 
DefocusNode::DefocusNode(bNode *editorNode) : Node(editorNode)
{
  /* pass */
}
 
void DefocusNode::convertToOperations(NodeConverter &converter,
                                      const CompositorContext &context) const
{
  bNode *node = this->getbNode();
  NodeDefocus *data = (NodeDefocus *)node->storage;
  Scene *scene = node->id ? (Scene *)node->id : context.getScene();
  Object *camob = scene ? scene->camera : nullptr;
 
  NodeOperation *radiusOperation;
  if (data->no_zbuf) {
    MathMultiplyOperation *multiply = new MathMultiplyOperation();
    SetValueOperation *multiplier = new SetValueOperation();
    multiplier->setValue(data->scale);
    SetValueOperation *maxRadius = new SetValueOperation();
    maxRadius->setValue(data->maxblur);
    MathMinimumOperation *minimize = new MathMinimumOperation();
 
    converter.addOperation(multiply);
    converter.addOperation(multiplier);
    converter.addOperation(maxRadius);
    converter.addOperation(minimize);
 
    converter.mapInputSocket(getInputSocket(1), multiply->getInputSocket(0));
    converter.addLink(multiplier->getOutputSocket(), multiply->getInputSocket(1));
    converter.addLink(multiply->getOutputSocket(), minimize->getInputSocket(0));
    converter.addLink(maxRadius->getOutputSocket(), minimize->getInputSocket(1));
 
    radiusOperation = minimize;
  }
  else {
    ConvertDepthToRadiusOperation *radius_op = new ConvertDepthToRadiusOperation();
    radius_op->setCameraObject(camob);
    radius_op->setfStop(data->fstop);
    radius_op->setMaxRadius(data->maxblur);
    converter.addOperation(radius_op);
 
    converter.mapInputSocket(getInputSocket(1), radius_op->getInputSocket(0));
 
    FastGaussianBlurValueOperation *blur = new FastGaussianBlurValueOperation();
    /* maintain close pixels so far Z values don't bleed into the foreground */
    blur->setOverlay(FAST_GAUSS_OVERLAY_MIN);
    converter.addOperation(blur);
 
    converter.addLink(radius_op->getOutputSocket(0), blur->getInputSocket(0));
    radius_op->setPostBlur(blur);
 
    radiusOperation = blur;
  }
 
  NodeBokehImage *bokehdata = new NodeBokehImage();
  bokehdata->angle = data->rotation;
  bokehdata->rounding = 0.0f;
  bokehdata->flaps = data->bktype;
  if (data->bktype < 3) {
    bokehdata->flaps = 5;
    bokehdata->rounding = 1.0f;
  }
  bokehdata->catadioptric = 0.0f;
  bokehdata->lensshift = 0.0f;
 
  BokehImageOperation *bokeh = new BokehImageOperation();
  bokeh->setData(bokehdata);
  bokeh->deleteDataOnFinish();
  converter.addOperation(bokeh);
 
#ifdef COM_DEFOCUS_SEARCH
  InverseSearchRadiusOperation *search = new InverseSearchRadiusOperation();
  search->setMaxBlur(data->maxblur);
  converter.addOperation(search);
 
  converter.addLink(radiusOperation->getOutputSocket(0), search->getInputSocket(0));
#endif
 
  VariableSizeBokehBlurOperation *operation = new VariableSizeBokehBlurOperation();
  if (data->preview) {
    operation->setQuality(eCompositorQuality::Low);
  }
  else {
    operation->setQuality(context.getQuality());
  }
  operation->setMaxBlur(data->maxblur);
  operation->setThreshold(data->bthresh);
  converter.addOperation(operation);
 
  converter.addLink(bokeh->getOutputSocket(), operation->getInputSocket(1));
  converter.addLink(radiusOperation->getOutputSocket(), operation->getInputSocket(2));
#ifdef COM_DEFOCUS_SEARCH
  converter.addLink(search->getOutputSocket(), operation->getInputSocket(3));
#endif
 
  if (data->gamco) {
    GammaCorrectOperation *correct = new GammaCorrectOperation();
    converter.addOperation(correct);
    GammaUncorrectOperation *inverse = new GammaUncorrectOperation();
    converter.addOperation(inverse);
 
    converter.mapInputSocket(getInputSocket(0), correct->getInputSocket(0));
    converter.addLink(correct->getOutputSocket(), operation->getInputSocket(0));
    converter.addLink(operation->getOutputSocket(), inverse->getInputSocket(0));
    converter.mapOutputSocket(getOutputSocket(), inverse->getOutputSocket());
  }
  else {
    converter.mapInputSocket(getInputSocket(0), operation->getInputSocket(0));
    converter.mapOutputSocket(getOutputSocket(), operation->getOutputSocket());
  }
}
 
}  // namespace blender::compositor