From e646e2af681732195785776a9145e9e0b57a5c6c Mon Sep 17 00:00:00 2001
From: kgv <kgv@opencascade.com>
Date: Fri, 24 Jul 2015 10:22:07 +0300
Subject: [PATCH] 0026476: Visualization, TKOpenGl - do not enable GL_NORMALIZE
 in core profile

---
 src/OpenGl/OpenGl_Context.cxx | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/OpenGl/OpenGl_Context.cxx b/src/OpenGl/OpenGl_Context.cxx
index f87a96f4a0..0950f75d46 100644
--- a/src/OpenGl/OpenGl_Context.cxx
+++ b/src/OpenGl/OpenGl_Context.cxx
@@ -2522,13 +2522,16 @@ Standard_Boolean OpenGl_Context::SetGlNormalizeEnabled (Standard_Boolean isEnabl
   myIsGlNormalizeEnabled = isEnabled;
 
 #if !defined(GL_ES_VERSION_2_0)
-  if (isEnabled)
-  {
-    glEnable (GL_NORMALIZE);
-  }
-  else
+  if (core11 != NULL)
   {
-    glDisable (GL_NORMALIZE);
+    if (isEnabled)
+    {
+      ::glEnable  (GL_NORMALIZE);
+    }
+    else
+    {
+      ::glDisable (GL_NORMALIZE);
+    }
   }
 #endif
 
-- 
2.39.5