From 1f4e09b19c68bbc6ca9360f43aa95ff770281fff Mon Sep 17 00:00:00 2001
From: Maxime Gimeno <maxime.gimeno@gmail.com>
Date: Fri, 21 Dec 2018 12:35:22 +0100
Subject: [PATCH] WIP fix reload c3t3

---
 Polyhedron/demo/Polyhedron/Scene_c3t3_item.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Polyhedron/demo/Polyhedron/Scene_c3t3_item.cpp b/Polyhedron/demo/Polyhedron/Scene_c3t3_item.cpp
index 106ae24d028..69dd85644b6 100644
--- a/Polyhedron/demo/Polyhedron/Scene_c3t3_item.cpp
+++ b/Polyhedron/demo/Polyhedron/Scene_c3t3_item.cpp
@@ -2058,7 +2058,11 @@ void Scene_c3t3_item::setAlpha(int alpha)
   redraw();
 }
 
-QSlider* Scene_c3t3_item::alphaSlider() { return d->alphaSlider; }
+QSlider* Scene_c3t3_item::alphaSlider() {
+  if(!d->alphaSlider)
+    d->computeElements();
+  return d->alphaSlider;
+}
 
 void Scene_c3t3_item::initializeBuffers(Viewer_interface *v) const
 {