From ac1bd39cfea2aaa2fe44467f827371025daed11d Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Wed, 8 Mar 2017 23:07:51 +0100
Subject: [PATCH] disabling depth test makes 3d viewer work again

---
 src/Gui/Quarter/QuarterWidget.cpp | 4 ++++
 src/QtOpenGL.h.cmake              | 1 +
 2 files changed, 5 insertions(+)

diff --git a/src/Gui/Quarter/QuarterWidget.cpp b/src/Gui/Quarter/QuarterWidget.cpp
index baff18fa54..e121b6a73f 100644
--- a/src/Gui/Quarter/QuarterWidget.cpp
+++ b/src/Gui/Quarter/QuarterWidget.cpp
@@ -763,14 +763,18 @@ void QuarterWidget::paintEvent(QPaintEvent* event)
     std::clock_t begin = std::clock();
 
     if(!initialized) {
+#if !defined(HAVE_QT5_OPENGL)
         glEnable(GL_DEPTH_TEST);
+#endif
         this->getSoRenderManager()->reinitialize();
         initialized = true;
     }
 
     getSoRenderManager()->activate();
 
+#if !defined(HAVE_QT5_OPENGL)
     glEnable(GL_DEPTH_TEST);
+#endif
     glMatrixMode(GL_PROJECTION);
 
     QtGLWidget* w = static_cast<QtGLWidget*>(this->viewport());
diff --git a/src/QtOpenGL.h.cmake b/src/QtOpenGL.h.cmake
index 847deb2bcf..04b639dc7b 100644
--- a/src/QtOpenGL.h.cmake
+++ b/src/QtOpenGL.h.cmake
@@ -35,6 +35,7 @@
 #include <QOpenGLWidget>
 #include <QOpenGLFramebufferObject>
 #include <QOpenGLVersionProfile>
+#include <QOpenGLFunctions>
 
 typedef QOpenGLContext QtGLContext;
 typedef QSurfaceFormat QtGLFormat;