Method Render

Rendering/VolumeOpenGL2/vtkMultiBlockVolumeMapper.cxx:78–138

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkMultiBlockVolumeMapper::Render(vtkRenderer* ren, vtkVolume* vol)
{
  vtkDataObject* dataObj = this->GetDataObjectInput();
  if (dataObj->GetMTime() != this->BlockLoadingTime)
  {
    vtkDebugMacro("Reloading data blocks!");
    this->LoadDataSet(ren, vol);
    this->BlockLoadingTime = dataObj->GetMTime();
  }

  vol->GetModelToWorldMatrix(this->TempMatrix4x4);
  this->SortMappers(ren, this->TempMatrix4x4);

  MapperVec::iterator end = this->Mappers.end();
  for (MapperVec::iterator it = this->Mappers.begin(); it != end; ++it)
  {
    if (this->FallBackMapper)
    {
      vtkImageData* image = vtkImageData::SafeDownCast((*it)->GetInput());
      image->Modified();
      this->FallBackMapper->SetInputData(image);
      this->FallBackMapper->Render(ren, vol);
      continue;
    }

    (*it)->Render(ren, vol);
  }

#ifdef MB_DEBUG
  this->DebugRen->RemoveAllViewProps();
  unsigned int count = 0;
  for (MapperVec::const_iterator it = this->Mappers.begin(); it != end; ++it)
  {
    double* bnds = (*it)->GetInput()->GetBounds();
    // vtkErrorMacro("Count: " << count << " bnds " << bnds[0] << " " << bnds[1] << " " << bnds[2]
    // << " " << bnds[3]
    //   << " " << bnds[4] << " " << bnds[5]);
    double rgb[3];
    rgb[0] = (count % 4) * 85 / 255.0;
    rgb[1] = ((count / 4) % 4) * 85 / 255.0;
    rgb[2] = (count / 16) * 85 / 255.0;
    vtkNew<vtkActor> act;
    act->GetProperty()->SetColor(rgb);
    act->GetProperty()->SetDiffuse(0);
    act->GetProperty()->SetAmbient(1);
    vtkNew<vtkCubeSource> cube;
    cube->SetBounds(bnds);
    vtkNew<vtkPolyDataMapper> mapper;
    mapper->SetInputConnection(cube->GetOutputPort());
    act->SetMapper(mapper);
    this->DebugRen->AddActor(act);
    count++;
  }

  this->DebugRen->GetActiveCamera()->ShallowCopy(ren->GetActiveCamera());
  this->DebugWin->SetSize(ren->GetVTKWindow()->GetSize());
  this->DebugWin->MakeCurrent();
  this->DebugWin->Render();