1 files changed, 22 insertions, 0 deletions
diff --git a/vcl/source/opengl/OpenGLHelper.cxx b/vcl/source/opengl/OpenGLHelper.cxx
index 4ef2ce0e62d7..0e9d7107988d 100644
--- a/vcl/source/opengl/OpenGLHelper.cxx
+++ b/vcl/source/opengl/OpenGLHelper.cxx
@@ -247,4 +247,26 @@ const char* OpenGLHelper::GLErrorString(GLenum errorCode)
     return NULL;
 }
 
+std::ostream& operator<<(std::ostream& rStrm, const glm::vec4& rPos)
+{
+    rStrm << "( " << rPos[0] << ", " << rPos[1] << ", " << rPos[2] << ", " << rPos[3] << ")";
+    return rStrm;
+}
+
+std::ostream& operator<<(std::ostream& rStrm, const glm::mat4& rMatrix)
+{
+    for(int i = 0; i < 4; ++i)
+    {
+        rStrm << "\n( ";
+        for(int j = 0; j < 4; ++j)
+        {
+            rStrm << rMatrix[j][i];
+            rStrm << " ";
+        }
+        rStrm << ")\n";
+    }
+    return rStrm;
+}
+
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */