vtkPropItem or vtkOpenGLPropItem

If i'm create vtkSmartPointer<vtkItemProp> item = vtkSmartPointer<vtkItemProp>::New() vtkActor *actor = .. item->SetPropObject(actor) then actor is not rendered. And real object is vtkOpenGLPropItem. This is not written in documents

I i using class vtkPropItemMy : public vtkPropItem then actor is renderer. But it is necessary to override methods

//------------------------------------------------------------------------------
void vtkPropItem::UpdateTransforms()
{
  vtkErrorMacro(<<"Missing override in the rendering backend. Some items "
                "may be rendered incorrectly.");
}

//------------------------------------------------------------------------------
void vtkPropItem::ResetTransforms()
{
  vtkErrorMacro(<<"Missing override in the rendering backend. Some items "
                  "may be rendered incorrectly.");
}

it is not comfortable.

Function SetVisible does not hide PropObject