#include <vtkAssignAttribute.h>
#include <vtkImageAccumulate.h>
#include <vtkImageReslice.h>
-#include <vtkOpenGLImageSliceMapper.h>
#if VTK_MAJOR_VERSION >= 6 || (VTK_MAJOR_VERSION >= 5 && VTK_MINOR_VERSION >= 10)
+# include <vtkOpenGLImageSliceMapper.h>
# include <vtkImageMapper3D.h>
# include <vtkImageSliceMapper.h>
#endif