From 8d557bee8cfb21841446a323a015e225e8e204fe Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Fri, 16 Nov 2012 22:41:54 +0100
Subject: [PATCH] Bugfix: AMF export was not working anymore. #799

---
 lib/Slic3r/GUI/Plater.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index 1d9d32001b..5a13a6e429 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -705,7 +705,7 @@ sub make_model {
                 material_id => $volume->material_id,
                 facets      => $volume->facets,
             );
-            $model->materials->{$volume->material_id || 0} ||= {};
+            $model->set_material($volume->material_id || 0, {});
         }
         $new_model_object->scale($plater_object->scale);
         $new_model_object->add_instance(