diff --git a/CMakeLists_files.cmake b/CMakeLists_files.cmake
index 06a7347c6..03fc0c390 100644
--- a/CMakeLists_files.cmake
+++ b/CMakeLists_files.cmake
@@ -72,6 +72,7 @@ if(ENABLE_ECL_INPUT)
     external/resinsight/LibCore/cvfPlane.cpp
     external/resinsight/LibCore/cvfString.cpp
     external/resinsight/LibCore/cvfSystem.cpp
+    external/resinsight/LibCore/cvfTrace.cpp
     external/resinsight/LibCore/cvfVector3.cpp
     external/resinsight/LibGeometry/cvfBoundingBox.cpp
     external/resinsight/LibGeometry/cvfBoundingBoxTree.cpp
diff --git a/external/resinsight/LibCore/cvfTrace.cpp b/external/resinsight/LibCore/cvfTrace.cpp
new file mode 100644
index 000000000..a743d7282
--- /dev/null
+++ b/external/resinsight/LibCore/cvfTrace.cpp
@@ -0,0 +1,166 @@
+//##################################################################################################
+//
+//   Custom Visualization Core library
+//   Copyright (C) 2011-2013 Ceetron AS
+//
+//   This library may be used under the terms of either the GNU General Public License or
+//   the GNU Lesser General Public License as follows:
+//
+//   GNU General Public License Usage
+//   This library 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 3 of the License, or
+//   (at your option) any later version.
+//
+//   This library 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 at <<http://www.gnu.org/licenses/gpl.html>>
+//   for more details.
+//
+//   GNU Lesser General Public License Usage
+//   This library is free software; you can redistribute it and/or modify
+//   it under the terms of the GNU Lesser General Public License as published by
+//   the Free Software Foundation; either version 2.1 of the License, or
+//   (at your option) any later version.
+//
+//   This library 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 Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
+//   for more details.
+//
+//##################################################################################################
+
+
+#include "cvfBase.h"
+#include "cvfTrace.h"
+#include "cvfSystem.h"
+
+#ifdef WIN32
+#pragma warning (push)
+#pragma warning (disable: 4668)
+#include <windows.h>
+#pragma warning (pop)
+#else
+#include <cstdio>
+#include <cstdarg>
+#endif
+
+#ifdef CVF_ANDROID
+#include <android/log.h>
+#endif
+
+namespace external 
+{
+
+namespace cvf {
+
+//==================================================================================================
+///
+/// \class cvf::Trace
+/// \ingroup Core
+///
+/// Class for writing debug text to console, DevStudio output window and file (future)
+///
+/// TODO: Create file output.
+///
+//==================================================================================================
+
+//--------------------------------------------------------------------------------------------------
+/// Write debug text to console, DevStudio output window and file (future)
+//--------------------------------------------------------------------------------------------------
+void Trace::show(String message)
+{
+    showTraceOutput(message, true);
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// Write printf formatted debug text to console, DevStudio output window and file (future)
+//--------------------------------------------------------------------------------------------------
+void Trace::show(const char* format, ...)
+{
+    // Create the printf-style string and send it to the console and trace file
+    // TODO! Note: var-arg is solved locally here, but needs to be revisited e.g. in String class
+    va_list argList;
+    va_start(argList, format);
+
+    const int maxFormatLength = 4000;
+    char temp[maxFormatLength + 1];
+
+#ifdef WIN32
+    _vsnprintf_s(temp, maxFormatLength, format, argList);
+#elif defined(CVF_ANDROID)
+    __android_log_print(ANDROID_LOG_DEBUG, "CVF_TAG", format, argList);
+#else
+    vsprintf(temp, format, argList);
+#endif
+
+    va_end(argList);    
+
+    showTraceOutput(temp, true);
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+void Trace::showFileLineNumber(const String& file, int line, const String& message)
+{
+    String tmp = file + "(" + String(line) + ")";
+
+    if (!message.isEmpty())
+    {
+        tmp += ": msg: " + message;
+    }
+
+    Trace::show(tmp);
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// Show the trace output in console and DevStudio output window
+//--------------------------------------------------------------------------------------------------
+void Trace::showTraceOutput(String text, bool addNewLine)
+{
+#ifdef WIN32
+    AllocConsole();
+
+    HANDLE hStdOutputHandle = GetStdHandle(STD_OUTPUT_HANDLE);
+
+    if (hStdOutputHandle)
+    {
+        unsigned long iDum = 0;
+        CharArray ascii = text.toAscii();
+        DWORD stringLength = static_cast<DWORD>(System::strlen(ascii.ptr()));
+
+        WriteConsoleA(hStdOutputHandle, ascii.ptr(), stringLength, &iDum, NULL);
+        if (addNewLine) WriteConsole(hStdOutputHandle, "\n", 1, &iDum, NULL);
+    }
+#elif defined(CVF_ANDROID)
+    __android_log_print(ANDROID_LOG_DEBUG, "CVF_TAG", "%s", text.toAscii().ptr());
+#else
+    fprintf(stderr, "%s", text.toAscii().ptr());
+    if (addNewLine) 
+    {
+        fprintf(stderr, "\n");
+    }
+#endif
+
+    // Show output in "Output window" in Visual Studio
+#if defined(WIN32) && defined(_DEBUG)
+    // Alternativly use OutputDebugStringA(text.toAscii().ptr()); if this does not work on some platforms
+    _RPT0(_CRT_WARN, text.toAscii().ptr());
+    if (addNewLine)
+    {
+        _RPT0(_CRT_WARN, "\n");
+    }
+#endif
+}
+
+
+} // namespace cvf
+} // namespace external