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diff --git a/src/functors/lattice/superMax3D.hh b/src/functors/lattice/superMax3D.hh
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+++ b/src/functors/lattice/superMax3D.hh
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+/*  This file is part of the OpenLB library
+ *
+ *  Copyright (C) 2018 Adrian Kummerlaender
+ *  E-mail contact: info@openlb.net
+ *  The most recent release of OpenLB can be downloaded at
+ *  <http://www.openlb.net/>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public
+ *  License along with this program; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+*/
+
+#ifndef SUPER_MAX_3D_HH
+#define SUPER_MAX_3D_HH
+
+#include "superMax3D.h"
+#include "indicator/superIndicatorF3D.h"
+
+namespace olb {
+
+
+template <typename T, typename W>
+SuperMax3D<T,W>::SuperMax3D(FunctorPtr<SuperF3D<T,W>>&&        f,
+                            FunctorPtr<SuperIndicatorF3D<T>>&& indicatorF)
+  : SuperF3D<T,W>(f->getSuperStructure(), f->getTargetDim()),
+    _f(std::move(f)),
+    _indicatorF(std::move(indicatorF))
+{
+  this->getName() = "Max("+_f->getName()+")";
+
+  LoadBalancer<T>&     load   = _f->getSuperStructure().getLoadBalancer();
+  CuboidGeometry3D<T>& cuboid = _f->getSuperStructure().getCuboidGeometry();
+
+  if ( _f->getBlockFSize()          == load.size() &&
+       _indicatorF->getBlockFSize() == load.size() ) {
+    for (int iC = 0; iC < load.size(); ++iC) {
+      this->_blockF.emplace_back(
+        new BlockMax3D<T,W>(_f->getBlockF(iC),
+                            _indicatorF->getBlockIndicatorF(iC),
+                            cuboid.get(load.glob(iC)))
+      );
+    }
+  }
+}
+
+template <typename T, typename W>
+SuperMax3D<T,W>::SuperMax3D(FunctorPtr<SuperF3D<T,W>>&& f,
+                            SuperGeometry3D<T>& superGeometry,
+                            const int material)
+  : SuperMax3D(
+      std::forward<decltype(f)>(f),
+      superGeometry.getMaterialIndicator(material))
+{ }
+
+template <typename T, typename W>
+bool SuperMax3D<T,W>::operator() (W output[], const int input[])
+{
+  _f->getSuperStructure().communicate();
+  CuboidGeometry3D<T>& geometry = _f->getSuperStructure().getCuboidGeometry();
+  LoadBalancer<T>&     load     = _f->getSuperStructure().getLoadBalancer();
+
+  for (int i = 0; i < this->getTargetDim(); ++i) {
+    output[i] = std::numeric_limits<W>::min();
+  }
+
+  if (this->_blockF.empty()) {
+    W outputTmp[_f->getTargetDim()];
+    int inputTmp[_f->getSourceDim()];
+
+    for (int iC = 0; iC < load.size(); ++iC) {
+      const Cuboid3D<T> cuboid = geometry.get(load.glob(iC));
+      inputTmp[0] = load.glob(iC);
+      for (inputTmp[1] = 0; inputTmp[1] < cuboid.getNx(); ++inputTmp[1]) {
+        for (inputTmp[2] = 0; inputTmp[2] < cuboid.getNy(); ++inputTmp[2]) {
+          for (inputTmp[3] = 0; inputTmp[3] < cuboid.getNz(); ++inputTmp[3]) {
+            if (_indicatorF(inputTmp)) {
+              _f(outputTmp,inputTmp);
+              for (int i = 0; i < this->getTargetDim(); ++i) {
+                if (outputTmp[i] > output[i]) {
+                  output[i] = outputTmp[i];
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+  else {
+    for (int iC = 0; iC < load.size(); ++iC) {
+      this->getBlockF(iC)(output, input);
+    }
+  }
+
+#ifdef PARALLEL_MODE_MPI
+  for (int i = 0; i < this->getTargetDim(); ++i) {
+    singleton::mpi().reduceAndBcast(output[i], MPI_MAX);
+  }
+#endif
+  return true;
+}
+
+
+}
+
+#endif