WFillGrid.cpp

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/* SPDX-FileCopyrightText: 2012-2022 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#include "WFillGrid.h"
#include "WEdge.h"
 
namespace Freestyle {
 
void WFillGrid::fillGrid()
{
  if (!_winged_edge || !_grid) {
    return;
  }
 
  vector<WShape *> wshapes = _winged_edge->getWShapes();
  vector<WVertex *> fvertices;
  vector<Vec3r> vectors;
  vector<WFace *> faces;
 
  for (vector<WShape *>::const_iterator it = wshapes.begin(); it != wshapes.end(); ++it) {
    faces = (*it)->GetFaceList();
 
    for (vector<WFace *>::const_iterator f = faces.begin(); f != faces.end(); ++f) {
      (*f)->RetrieveVertexList(fvertices);
 
      for (vector<WVertex *>::const_iterator wv = fvertices.begin(); wv != fvertices.end(); ++wv) {
        vectors.emplace_back((*wv)->GetVertex());
      }
 
      // occluder will be deleted by the grid
      Polygon3r *occluder = new Polygon3r(vectors, (*f)->GetNormal());
      occluder->setId(_polygon_id++);
      occluder->userdata = (void *)(*f);
      _grid->insertOccluder(occluder);
      vectors.clear();
      fvertices.clear();
    }
    faces.clear();
  }
}
 
} /* namespace Freestyle */