Method InitializePieces

Rendering/Parallel/vtkParallelRenderManager.cxx:288–327

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//------------------------------------------------------------------------------
void vtkParallelRenderManager::InitializePieces()
{
  vtkDebugMacro("InitializePieces");

  vtkRendererCollection* rens;
  vtkRenderer* ren;
  vtkActorCollection* actors;
  vtkActor* actor;
  vtkMapper* mapper;
  vtkPolyDataMapper* pdMapper;
  int piece, numPieces;

  if ((this->RenderWindow == nullptr) || (this->Controller == nullptr))
  {
    vtkWarningMacro("Called InitializePieces before setting RenderWindow or Controller");
    return;
  }
  piece = this->Controller->GetLocalProcessId();
  numPieces = this->Controller->GetNumberOfProcesses();

  rens = this->GetRenderers();
  vtkCollectionSimpleIterator rsit;
  rens->InitTraversal(rsit);
  while ((ren = rens->GetNextRenderer(rsit)))
  {
    actors = ren->GetActors();
    vtkCollectionSimpleIterator ait;
    actors->InitTraversal(ait);
    while ((actor = actors->GetNextActor(ait)))
    {
      mapper = actor->GetMapper();
      pdMapper = vtkPolyDataMapper::SafeDownCast(mapper);
      if (pdMapper)
      {
        pdMapper->SetPiece(piece);
        pdMapper->SetNumberOfPieces(numPieces);
      }
    }
  }
}

//------------------------------------------------------------------------------
void vtkParallelRenderManager::InitializeOffScreen()