diff --git a/Core/Code/Rendering/vtkMitkRenderProp.cpp b/Core/Code/Rendering/vtkMitkRenderProp.cpp
index f7e01a3ea2..59d4c6bf9d 100644
--- a/Core/Code/Rendering/vtkMitkRenderProp.cpp
+++ b/Core/Code/Rendering/vtkMitkRenderProp.cpp
@@ -1,112 +1,107 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #include "vtkMitkRenderProp.h"
 
 #include <vtkObjectFactory.h>
 #include <vtkLODProp3D.h>
 #include <vtkPropAssembly.h>
 
 #include "mitkVtkMapper.h"
 #include "mitkGLMapper.h"
 
 
 vtkStandardNewMacro(vtkMitkRenderProp);
 
 vtkMitkRenderProp::vtkMitkRenderProp()
 {
 }
 vtkMitkRenderProp::~vtkMitkRenderProp()
 {
 }
 
 double *vtkMitkRenderProp::GetBounds()
 {
   return const_cast<double*>(m_VtkPropRenderer->GetBounds());
 }
 
 void vtkMitkRenderProp::SetPropRenderer(mitk::VtkPropRenderer::Pointer propRenderer)
 {
   this->m_VtkPropRenderer = propRenderer;
 }
 
 int vtkMitkRenderProp::RenderOpaqueGeometry(vtkViewport* /*viewport*/)
 {
   return m_VtkPropRenderer->Render(mitk::VtkPropRenderer::Opaque);
 }
 
 int vtkMitkRenderProp::RenderOverlay(vtkViewport* /*viewport*/)
 {
   return m_VtkPropRenderer->Render(mitk::VtkPropRenderer::Overlay);
 }
 
 void vtkMitkRenderProp::ReleaseGraphicsResources(vtkWindow* window)
 {
   m_VtkPropRenderer->ReleaseGraphicsResources(window);
 }
 
 void vtkMitkRenderProp::InitPathTraversal()
 {
   m_VtkPropRenderer->InitPathTraversal();
 }
 
 vtkAssemblyPath* vtkMitkRenderProp::GetNextPath()
 {
   return m_VtkPropRenderer->GetNextPath();
 }
 //BUG (#1551) added method depth peeling
 int vtkMitkRenderProp::HasTranslucentPolygonalGeometry()
 {
-  return 0; /* If I don't deactivate this function, I get lots of output like
-
-               ERROR: In /home/maleike/build/mitk2/VTK-src/Rendering/vtkLODProp3D.cxx, line 969
-               vtkLODProp3D (0x7f810452f000): Index out of range!
-            */
   typedef std::map<int,mitk::Mapper*> MappersMapType;
   MappersMapType mappersMap = m_VtkPropRenderer->GetMappersMap();
   for(MappersMapType::iterator it = mappersMap.begin(); it != mappersMap.end(); it++)
   {
     mitk::Mapper * mapper = (*it).second;
 
     mitk::VtkMapper::Pointer vtkMapper = dynamic_cast<mitk::VtkMapper*>(mapper);
     if(vtkMapper)
     {
       // Due to VTK 5.2 bug, we need to initialize the Paths object in vtkPropAssembly
       // manually (see issue #8186 committed to VTK's Mantis issue tracker)
       // --> VTK bug resolved on 2008-12-01
       vtkPropAssembly *propAssembly = dynamic_cast< vtkPropAssembly * >(
           vtkMapper->GetVtkProp(m_VtkPropRenderer) );
       if ( propAssembly )
       {
         propAssembly->InitPathTraversal();
       }
 
       if (vtkMapper->GetVtkProp(m_VtkPropRenderer)->HasTranslucentPolygonalGeometry()==1)
         return 1;
     }
   }
   return 0;
 }
 
 int vtkMitkRenderProp::RenderTranslucentPolygonalGeometry( vtkViewport * )
 {
   return m_VtkPropRenderer->Render(mitk::VtkPropRenderer::Translucent);
 }
 int vtkMitkRenderProp::RenderVolumetricGeometry( vtkViewport * )
 {
   return m_VtkPropRenderer->Render(mitk::VtkPropRenderer::Volumetric);
 }