Method RecursiveHasTranslucentGeometry

Rendering/Core/vtkCompositePolyDataMapper.cxx:838–962

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bool vtkCompositePolyDataMapper::RecursiveHasTranslucentGeometry(
  vtkDataObject* dobj, unsigned int& flat_index)
{
  vtkCompositeDataDisplayAttributes* cda = this->GetCompositeDataDisplayAttributes();
  bool overrides_opacity = (cda && cda->HasBlockOpacity(dobj));
  if (overrides_opacity)
  {
    if (cda->GetBlockOpacity(dobj) < 1.0)
    {
      return true;
    }
  }

  // Advance flat-index. After this point, flat_index no longer points to this
  // block.
  flat_index++;

  if (auto dObjTree = vtkDataObjectTree::SafeDownCast(dobj))
  {
    using Opts = vtk::DataObjectTreeOptions;
    for (vtkDataObject* child : vtk::Range(dObjTree, Opts::None))
    {
      if (!child)
      {
        ++flat_index;
      }
      else
      {
        if (this->RecursiveHasTranslucentGeometry(child, flat_index))
        {
          return true;
        }
      }
    }
    return false;
  }
  else
  {
    bool overrides_visibility = (cda && cda->HasBlockVisibility(dobj));
    if (overrides_visibility)
    {
      if (!cda->GetBlockVisibility(dobj))
      {
        return false;
      }
    }
    int scalarMode = this->ScalarMode;
    int arrayAccessMode = this->ArrayAccessMode;
    int arrayComponent = this->ArrayComponent;
    int arrayId = this->ArrayId;
    std::string arrayName = this->ArrayName;
    bool scalarVisibility = this->ScalarVisibility;
    int colorMode = this->ColorMode;
    vtkScalarsToColors* lut = this->GetLookupTable();

    bool overrides_scalar_mode = (cda && cda->HasBlockArrayAccessMode(dobj));
    if (overrides_scalar_mode)
    {