From 862700ab46d7b540f8f01c5ababd213e816af3d4 Mon Sep 17 00:00:00 2001
From: Enrico Turri <enricoturri@seznam.cz>
Date: Fri, 8 Mar 2019 10:42:09 +0100
Subject: [PATCH] Added change removed by mistale in
 02163f7f9648b81ad1dc59a4ad6c1a5c55c02a50

---
 src/slic3r/GUI/GLCanvas3D.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index b8afc325a..7914022a1 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -4118,8 +4118,11 @@ void GLCanvas3D::render()
     if (m_canvas == nullptr)
         return;
 
+#ifndef __WXMAC__
+    // on Mac this check causes flickering when changing view
     if (!_is_shown_on_screen())
         return;
+#endif // __WXMAC__
 
     // ensures this canvas is current and initialized
     if (!_set_current() || !_3DScene::init(m_canvas))