Method Synchronize

Rendering/ANARI/vtkAnariVolumeMapperNode.cxx:260–505

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//----------------------------------------------------------------------------
void vtkAnariVolumeMapperNode::Synchronize(bool prepass)
{
  vtkAnariProfiling startProfiling(
    "vtkAnariVolumeMapperNode::Synchronize", vtkAnariProfiling::GREEN);

  if (!prepass)
  {
    return;
  }

  vtkVolumeNode* volNode = vtkVolumeNode::SafeDownCast(this->Parent);
  vtkVolume* vol = vtkVolume::SafeDownCast(volNode->GetRenderable());

  if (vol->GetVisibility() != false)
  {
    vtkVolumeProperty* const volumeProperty = vol->GetProperty();

    if (!volumeProperty)
    {
      // this is OK, happens in paraview client side for instance
      vtkDebugMacro(<< "Volume doesn't have property set");
      return;
    }

    vtkAbstractVolumeMapper* mapper = vtkAbstractVolumeMapper::SafeDownCast(this->GetRenderable());

    // make sure that we have scalar input and update the scalar input
    if (mapper->GetDataSetInput() == nullptr)
    {
      // OK - PV cli/srv for instance vtkErrorMacro("VolumeMapper had no input!");
      vtkDebugMacro(<< "No scalar input for the Volume");
      return;
    }

    mapper->GetInputAlgorithm()->UpdateInformation();
    mapper->GetInputAlgorithm()->Update();
    vtkDataSet* dataSet = mapper->GetDataSetInput();
    vtkImageData* data = vtkImageData::SafeDownCast(dataSet);

    if (!data)
    {
      vtkDebugMacro("VolumeMapper's Input has no data!");
      return;
    }

    int fieldAssociation;
    vtkDataArray* sa = vtkDataArray::SafeDownCast(this->GetArrayToProcess(data, fieldAssociation));

    if (!sa)
    {
      vtkErrorMacro("VolumeMapper's Input has no scalar array!");
      return;
    }

    const int vectorComponent = volumeProperty->GetRGBTransferFunction()->GetVectorComponent();
    const int vectorMode = volumeProperty->GetRGBTransferFunction()->GetVectorMode();

    vtkDataArray* sca = this->Internal->ConvertScalarData(sa, vectorComponent, vectorMode);