From 56b31b7971b7ab7e8e555a3fb5d0e803df2ef103 Mon Sep 17 00:00:00 2001
From: Maxime Gimeno <maxime.gimeno@gmail.com>
Date: Tue, 6 Oct 2015 13:39:20 +0200
Subject: [PATCH] Color fix

- The nef item has random facets with their normal reversed. In CGAL-4.6, it
  was dealt with by forcing "draw two side" to true. So it is what I did.
---
 Polyhedron/demo/Polyhedron/Scene_nef_polyhedron_item.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Polyhedron/demo/Polyhedron/Scene_nef_polyhedron_item.cpp b/Polyhedron/demo/Polyhedron/Scene_nef_polyhedron_item.cpp
index bfb8e520dcd..64f83243d7f 100644
--- a/Polyhedron/demo/Polyhedron/Scene_nef_polyhedron_item.cpp
+++ b/Polyhedron/demo/Polyhedron/Scene_nef_polyhedron_item.cpp
@@ -413,6 +413,7 @@ void Scene_nef_polyhedron_item::draw(Viewer_interface* viewer) const
         program->setAttributeValue("colors", this->color().lighter(120));
     else
         program->setAttributeValue("colors", this->color());
+    program->setUniformValue("is_two_side", 1);
     viewer->glDrawArrays(GL_TRIANGLES, 0, static_cast<GLsizei>(nb_facets/3));
     vaos[0]->release();
     program->release();